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1
Kussior, Zdeněk. "Realistický model oblohy." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2007. http://www.nusl.cz/ntk/nusl-412799.
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The paper describes a theoretical base and realization of realistic volumetric clouds visualization in an environment of real-time simulator. The first part is concerned with a meteorological background of this problem. I show international classification of ten basic cloud types including a short description and cases of occurence. The following part is concerned with an interaction between cloudiness and simulation core, which is based on the fact, that each cloud acts as a mechanical or an electromagnetic obstacle. This should be considered on some way in simulation. The next part describes technologies and practical implementations of visualization and evaluates their characteristics. Finally, the last chapter describes my implementation and tries to outline project advancement.
2
Barvíř, Marek. "Volumetrické mraky." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2020. http://www.nusl.cz/ntk/nusl-417294.
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This master thesis deals with creation of library for volumetric clouds. The paper describes specific techniques for creation and rendering volumetric clouds as clouds and atmospheric scattering. For rendering this type of effects we have to cover theory for participating media.
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Balaštík, Milan. "Obliba ovocných piv v České republice." Master's thesis, Česká zemědělská univerzita v Praze, 2017. http://www.nusl.cz/ntk/nusl-262870.
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The main topic of this thesis is the popularity of fruit beers in the Czech Republic. It describes a generic distribution of fruit beers, both abroad and in our country. Shows an overview of large and small manufacturers in this category in the domestic market. It focuses on the current situation flavored beer on domestic and foreign markets, according to the latest data. Based on the survey are analyzed consumer preferences in the domestic market. They are then formulated breweries general recommendations arising from the outcomes of the survey. Subsequently, using basic statistical methods detected significant correlation between the consumption of flavored beers and gender and between consumption and age of respondents. If so, then it determines the strength of this dependence. It was found that while significant correlation was demonstrated in sex exists between consumption and age of the respondents. The strength of this dependence was assessed as moderate. It was finally drafted forecast consumption of mixed drinks based on beer in the Czech Republic. The analyzed time series contained the actual annual data maintained by the Czech Beer and Malt Association from 2012 to 2015. The forecast was calculated for the next two years. It was found that consumption of mixed drinks based on beer in the future will continue to decline.
4
Rajko, Radovanović. "Uticaj sastava polivinilhloridnih smeša i tehnoloških uslova proizvodnje na svojstva penastih podnih obloga." Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 2016. http://www.cris.uns.ac.rs/record.jsf?recordId=101048&source=NDLTD&language=en.
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Mogućnost primene polivinilhloridnih (PVC) podnih obloga je određena krajnjim svojstvima koja zavise od sastava obloge i načina proizvodnje. Zbog složenog sastava i različitih načina pripreme PVC podnih obloga, veoma je teško tačno proceniti uticaj pojedinačnog procesnog parametara na svojstva dobijenog proizvoda. U ovom radu, da bi se ispitao uticaj sastava polivinilhloridnih smeša na svojstva PVC podnih obloga pripremljeno je 27 receptura u kojima su varirane: koncentracije kalcijumkarbonata (40, 70 i 100 phr), koncentracije sredstva za ekspanziju, azodikarbonamida ADC (0,8, 1,0 i 1,2 mas. % u odnosu na ukupnu masu) kao i odnos „kikeraˮ i sredstva za ekspanziju, ZnO/ADC (0,33; 0,50 i 0,67). Da bi se proučio uticaj procesnih parametara na svojstva PVC podnih obloga menjani su tehnološki uslovi proizvodnje: temperatura (180, 184, 188, 192 i 196 °C) i vreme (90, 120 i 150 sekundi) ekspanzije poleđinskog sloja PVC podne obloge. Na taj način je od svake PVC paste dobijeno 15 uzoraka. Za svaki uzorak određena su sledeća svojstva: stepen ekspanzije, zatezna sila pri kidanju, prekidna sila kidanja, zatezno i prekidno izduženje, početni otpor cepanju, otpor cepanju, ukupna deformacija, zaostala deformacija, povratna elastičnost, gustina pene i indeks žućenja. S obzirom na ovako veliki broj podataka urađena je statistička obrada dobijenih eksperimentalnih podataka metodom višestruke linearne regresione analize, kako bi procenili uticaji pojedinačnih procesnih parametara na ispitivana svojstva. Napisan je originalni programski kod primenom Garson-ovog i Yoon-ovog modela u programu Matlab koji omogućava formiranje neuronske mreže i njenu upotrebu u cilju fitovanja eksperimentalnih podataka. Rezultati dobijeni primenom modela po Garson-u nisu pogodni za određivanje uticaja sastava PVC smeše i uslova prerade na konačna svojstva proizvoda, jer ne pokazuju pravac uticaja. Dok je veštačka neuronska mreža koja se zasniva na Yoon-ovom modelu uspešno primenjena u razvoju novih i poboljšanju postojećih svojstava heterogenih PVC proizvoda. Ispitan je i uticaj veličine čestice ZnO koji je upotrebljen kao „kikerˮ (sredstvo koje utiče na smanjenje temperature raspada ADC) na svojstva penastih podnih obloga. Napravljene su dve PVC paste, jedna sa komercijalnim ZnO, a druga sa nano ZnO, pri čemu je sastav ostalih komponenti bio identičan. Na osnovu dobijenih eksperimentalnih podatka može se zaključiti da kod uzoraka u kojima je upotrebljen nano ZnO dolazi do intenzivnijeg „curenjaˮ gasa nastalog raspadom ADC i međusobnog povezivanja pora. Kao posledica ovakve strukture pora uzorci sa nano ZnO imaju lošija mehanička svojstva. Na osnovu dobijenih karakterističnih temperatura na TG krivama nije uočen uticaj veličine čestica ZnO na termičku stabilnost ispitivanih uzoraka.<br>The application of PVC floor coverings is strongly connected with their end-use properties which depend on the composition and processing conditions. It is very difficult to estimate the proper influence of production parameters on the characteristics of PVC floor coverings due to their complex composition and various preparation procedures. In this paper, in order to investigate the effect of the PVC mixture composition on the properties of PVC floor coverings, 27 formulations are prepared varying concentration of calcium carbonate (40, 70 and 100 phr), concentration of blowing agent, azodicarbonamide ADC (0.8, 1.0 and 1.2 wt. % relative to the total weight) and the ratio of "kicker" and blowing agent, ZnO/ADC (0.33; 0.50 and 0.67). To study the influence of process parameters on the properties of PVC floor coverings technological production conditions are varied: expansion temperature (180, 184, 188, 192 and 196 °C) and expansion time (90, 120 and 150 seconds) of the PVC floor covering back layer. In this way, 15 samples are made of each PVC paste. The following properties are determined for each sample: expansion ratio, tensile strength, braking strength, tensile extension, breaking extension, initial resistance to tearing, tearing resistance, identation, residual identation, elasticity, density foam and yellowing index. Having such a large amount of data, statistical analysis of experimental data are made with multiple linear regression analysis in order to assess the effects of process parameters on investigated properties. The original program code is written using the Garson's and Yoon's models in the Matlab programme that allows the formation of neural networks and its use for the purpose of fitting the experimental data. Results obtained by using the Garson model are not suitable for determining the influence of composition of the PVC mixture and processing conditions on the properties of the final product because it does not show the direction of impact. While the artificial neural network based on Yoon's model is successfully applied to the development of new as well as to the improvement of the existing properties of the heterogeneous PVC products. The influence of ZnO particle size, used as a“kicker“ (this material reduces the decomposition temperature of ADC) is examined on the properties of the foam flooring. Two PVC pastes are made, one with commercial ZnO and the other with nano ZnO, with the other components of the compositions identical. Based on the obtained experimental data, it can be concluded that there is more intensive gas „leak“ resulting from disintegration of the ADC and also more intensive interconnection of pores in the samples where nano ZnO is used. As a result of this structure of pores, samples with nano ZnO have inferior mechanical properties. Based on the characteristic temperature obtained on TG curves, the influence of ZnO particle size on the thermal stability of the investigated samples is not observed.
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Čedomir, Stojanović. "Kinetika kombinovanog sušenja dunje (Cydonia oblonga Mill.)." Phd thesis, Univerzitet u Novom Sadu, Poljoprivredni fakultet u Novom Sadu, 2014. https://www.cris.uns.ac.rs/record.jsf?recordId=85685&source=NDLTD&language=en.
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Sušenje dunje kao voćne vrste u praksi nije uobičajeno, zbog povišene vrijednostitvrdoće i čvrstoće. Prethodna istraživanja sušenja dunje, pokazala su da se osmotskimsušenjem u okviru kombinovane tehnologije sušenja dobijaju povoljnije mehaničkeosobine sušenih proizvoda. Na osnovu plana obavljeni su eksperimenti osmotskog ikonvektivnog sušenja dunje u obliku četvrtina. Eksperiment osmotskog sušenja jeobavljen kao trofaktorni, gdje su uticajni faktori: temperatura rastvora, koncentracijarastvora i vrijeme trajanja sušenja. TakoĎe, eksperiment konvektivnog sušenja je obavljenkao trofaktorni, a uticajni faktori su: primjenjeni predtretman, temperature vazduha zasušenje i brzina strujanja vazduha ispred sloja.Na osnovu rezultata mjerenja eksperimenta osmotskog sušenja, zaključeno je da saporastom temperature i koncentracije rastvora postiže se veća brzina sušenja, što se iočekivalo. Disperzionom analizom osmotskog sušenja je ispitan uticaj faktora na brzinusušenja i zapreminsko skupljanje četvrtina dunje. Sa statističkom vjerovatnoćom od 99%je dokazano da postoji uticaj svih faktora na brzinu sušenja uzoraka. Dokazano je sastatističkom vjerovatnoćom od 99% da vrijeme trajanja osmotskog sušenja ima uticaj nazapreminsko skupljanje četvrtina dunje, dok uticajni faktori temperatura i koncentracijarastvora imaju uticaj sa statističkom vjerovatnoćom od 95%.Analizom rezultata mjerenja veličina tokom eksperimenta konvektivnog sušenjaevidentno je da se sa višom temperaturom vazduha postiže brže sniženje vlažnostičetvrtina dunje. Povećanjem vremena trajanja osmotskog predtretmana, smanjuje sebrzina konvektivnog sušenja. UtvrĎeno je da korišćenje osmotskog predtretmana savišom temperaturom rastvora i većom koncentracijom rastvora dovodi do smanjenjabrzine konvektivnog sušenja. Na osnovu disperzione analize konvektivnog sušenja sastatističkom vjerovatnoćom od 99% dokazano je da postoje uticaji predtretmana itemperature vazduha na brzinu sušenja i zapreminsko skupljanje četvrtina dunje. Uticajfaktora brzine vazduha ispred sloja materijala nije dokazan disperzionom analizom, ali jena osnovu kinetički krivih evidentan uticaj ovog faktora na brzinu sušenja, pri višimvlažnostima materijala i višoj temperaturi konvektivnog sušenja. Najvjerovatniji razlogovakvih rezultata disperzione analize su male vrijednosti brzine vazduha za sušenje,odnosno njihova mala razlika vrijednosti (0,5 m/s).Kinetika prenosa mase tokom kombinovane tehnologije sušenja dunje u formičetvrtine je matematički opisana, modelovanjem kinetike osmotskog sušenja i kinetikekonvektivnog sušenja. U okviru kinetike osmotskog sušenja četvrtina dunje, obavljeno jematematičko modelovanje promjene vlažnosti u odnosu na suvu bazu i modelovanjazapreminskog skupljanja. Za kinetiku konvektivnog sušenja četvrtina dunje, obavljeno jematematičko modelovanje promjene vlažnosti u odnosu na suvu bazu tokom vremenakonvektivnog sušenja. Za svaku veličinu koja se modeluje usvojeno po tri matematičkamodela, a modeli su prošireni uticajnim faktorima u bezdimenzionom obliku. Izvedenimodeli su imali dobro slaganje sa eksperimentalnim rezultatima, što pokazuju visokevrijednosti koeficijente korelacije. Primjena svih modela je jednostavna, gdje je uz pomoćstandardnih računara moguće brzo izračunavanje svih modelovanih veličina.Primjenom osmotskog predtretmana u kombinovanoj tehnologiji sušenja dunje,dobijaju se neke pozitivne osobine sušenog proizvoda. Smanjenje zapremine je manjeizraženo, nego primjenom samo konvektivnog sušenja. Vlažnost u voćnom tkivu jeravnomjernije rasporeĎena i manje je presušivanje spoljnjih slojeva voćnog tkiva.Stvaraju se manji unutrašnji naponi izmeĎu slojeva tkiva, uslijed čega nastaju manjedeformacije oblika. U površinskom sloju voćnog tkiva postoje adsorpcione veze vlage,rastvorka i suve materije, a ove veze utiču na povećanje vrijednosti vlažnosti pri kojimase osušeni proizvod bezbjedno skladišti.<br>Drying of the quince as a fruit species is not common in practice due to its increased hardnessand firmness. Previous researches on quince drying have indicated that osmotic drying, withinthe combined drying technology, enables favourable mechanical properties of dried products.Planned experiments of the osmotic and convective drying of quince quarters were conducted.The osmotic drying experiment was based on three significant experimental factors: thetemperature of osmotic solution, the concentration of osmotic solution, and the duration ofosmotic drying. The convective drying experiment was also based on three experimentalfactors entailing the applied pretreatment, the temperature of drying air and the velocity ofdrying air in front of material layers.The measurement results obtained during the osmotic drying experiment indicate that anincrease in the temperature and the concentration of osmotic solution accelerates the dryingprocess, as expected. A dispersion analysis of the osmotic drying indicated the effects ofexperimental factors on the drying speed and the volume shrinkage of quince quarters. With astatistical probability of 99%, it was proven that all factors influence the speed of drying.Moreover, with a statistical probability of 99%, it was proven that the duration of osmoticdrying influences the volume shrinkage of quince quarters, whereas the significant factors suchas the temperature and the concentration of osmotic solution exert influence with a statisticalprobability of 95%.The analysis of measurement results obtained during the convective drying experiment showsthat an increase in the air temperature accelerates a decrease in the moisture content of quincequarters. An increase in the duration of osmotic pretreatment decelerates the convective dryingprocess. It was determined that the application of the osmotic pretreatment with highersolution temperature and concentration decelerates the convective drying. On the basis of adispersion analysis of the convective drying with a statistical probability of 99%, it was proventhat the pretreatment and the air temperature affect the speed of drying and the volumeshrinkage of quince quarters. The effects of the air velocity in front of the material layer wasnot determined by means of the dispersion analysis, nevertheless kinetic curves indicate theinfluence of this factor on the drying speed, especially in the instance of higher moisturecontent of the material and higher temperature of the convective drying. The most probablecauses of such dispersion analysis results are low values of the drying air velocity, i.e. a slightdifference in the values (0.5 m/s).The kinetics of mass transfer during the combined drying of quince quarters wasmathematically described by means of the modelling of the kinetics of osmotic drying and thekinetics of convective drying. The kinetics of osmotic drying of quince quarters was expressedvia the mathematical modelling of moisture content change in relation to dry basis and themodelling of volume shrinkage. The kinetics of convective drying of quince quarters wasexpressed via the mathematical modelling of moisture content change in relation to dry basisduring the convective drying. Three mathematical models were established for every modelledvalue, and the models were extended by significant non-dimensional experimental factors. Thedeveloped models had a good fit with the experimental results, which was indicated by thehigh values of the correlation coefficient. The application of all models is simple and standardpersonal computers can be used for rapid calculations of modelled values.The application of the osmotic pretreatment in the combined quince drying enablesfavourable properties of dried products. Volume shrinkage is slighter in comparison with theconvective quince drying. The moisture content in the fruit tissue is more evenly distributedand the dehydration of the outer layers of the fruit tissue is lower. The tension between thelayers of the tissue is reduced thus reducing the shape defects. Within the surface layers of fruittissues, the adsorption bonds of moisture, solute and dry matter are formed. These bondsincrease the moisture content value, which enables the safe storage of dry products.
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Dragan, Halas. "Računarska simulacija i analiza novih oblika mernih blendi." Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=114280&source=NDLTD&language=en.
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U mnogim granama tehnike javljaju se problemimerenja protoka fluida. Merne blende, zbog svojihmnogih prednosti predstavljaju najzastupljenijiinstrument za merenje protoka fluida kroz cevovode. Sadruge strane njihova upotreba povećava troškove radaindustrijskih postrojenja. Jedan od ciljeva ovedoktorske disertacije bio je ispitivanje novih oblikamernih blendi u cilju uštede energije pri njihovom radu.U ovoj doktorskoj disertaciji predložen je algoritamispitivanja novih oblika mernih blendi. Takođe jekonstruisana i izrađena laboratorijska aparatura zanjihovo ispitivanje kao i diferncijalni "U" manometarza merenje malih razlika pritisaka. U okviru ovedoktorske disertacije dizajnirana su i ispitana tri novaoblika mernih blendi. Ušteda energije je postignutadizajnom koji smanjuje otpor merne blende kaoelementa cevovoda. Novi oblici mernih blendi, kao ijedna standardnog oblika koja je poslužila kaoreferentna, ispitani su prema predloženom algoritmu. Uprvom koraku merne blende su dizajnirane uprogramskom paketu Solid Works. Zatim su, premapredloženom algoritmu, ispitane pomoću računarske simulacije u programskom paketu COMSOL Multiphysics. Po dobijanju zadovoljavajućih rezultata računarske simulacije, merne blende su izrađene na 3D štampaču, FDM postupkom i ispitane na laboratorijskoj aparaturi. Rezultati laboratorijskih ispitivanja su upoređeni sa rezultatima računarske simulacije. Upoređeni rezultati računarske simulacije i laboratorijskih ispitivanja su pokazali da je računarska simulacija dobro opisivala situaciju. Rezultati laboratorijskog ispitivanja su pokazali znatan efekat uštede energije. Takođe je utvrđeno da se pomoću računarske simulacije mogu dobiti podaci na osnovu kojih se može doneti odluka da li novi oblik merne blende treba korigovati ili ima smisla pristupiti laboratorijskom ispitivanju. Algoritam ispitivanja koji je predložen u ovoj doktorskoj disertaciji se pokazao efikasnim. <br>In many domains of technology, there are problemswith the measurement of fluid flow. Orifice plates,because of their many advantages, represent the mostcommon instrument for measuring fluid flow throughpipelines. On the other hand, their use increases theoperating cost of industrial plants. One of the goals ofthis doctoral dissertation was to test new forms oforifice plates for a reason to save energy during theirwork. An algorithm for testing new forms of orificeplates is proposed. Also, the laboratory equipment fortesting them was designed and made, as well as adifferential "U" manometer for measuring smallpressure differences. As part of this doctoraldissertation are designed and tested three new forms oforifice plates. Energy-saving was achieved by a designthat reduces the resistance of the orifice plate as anelement of the pipeline. New forms of orifice plates, as well as a standard shape, which served as a reference, were tested according to the present algorithm. In the first step, orifice plates are designed in the Solid Works software package. Then, according to the proposed algorithm, they were tested using computer simulation in COMSOL Multiphysics software package. After achieving satisfactory results of computer simulation, orifice plates are made on a 3D printer, using the FDM process and tested in the laboratory apparatus. The results of laboratory tests were compared with the results of computer simulations. Compared results of computer simulation and laboratory testing showed that computer simulation described the situation well. The results of the laboratory test showed a significant energy-saving effect. It was also found that computer simulation can obtain data that can decide whether a new form of orifice plate must be corrected or it makes sense to access laboratory testing. The algorithm proposed in this doctoral dissertation has proven effective.
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Sunčica, Vještica. "Model upravljanja uticajima procesa proizvodnje podnih obloga na životnu sredinu primenom metode ocenjivanja životnog ciklusa (LCA)." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2014. http://www.cris.uns.ac.rs/record.jsf?recordId=85071&source=NDLTD&language=en.
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U disertaciji je predložen opšti model za upravljanje uticajima na životnu sredinu u okviru proizvodnih procesa proizvodnje podnih obloga, zasnovan na metodi ocenjivanja životnog ciklusa proizvoda i procesa. Model je sistematično predstavljen kroz opis osnovnih delova - modela inventara životnog ciklusa i modela za ocenjivanje uticaja životnog ciklusa. Disertacija sadrži i detaljan opis podloga na kojima je model razvijen. Verifikacija razvijenog modela je sprovedena kroz tri studije slučaja.<br>The dissertation proposes a general model for managing environmental impacts within the manufacturing process of flooring coverings, based on the method of life cycle assessment of products and processes. The model is systematically present by describing the main parts - the life cycle inventory model and a model for the life cycle impact assessment. Dissertation contains a detailed description of the background bases on which the model is developed. Verification of the model is carried out through three case studies.
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Aleksandar, Kosina. "Priroda funkcija, njihovih oblika i odnosa u ljudskom okruženju." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=107172&source=NDLTD&language=en.
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U radu se proučava poreklo funkcija, veza sistema povreatnih sprega sa uspostavljanjem funkcija, primarne funkcije kao funkcije fizičkog protoka između adaptivnih sistema i njihovog okruženja, perceptivno-analitičke funkcije kao funkcije informacionih protoka između adaptivnih sistema i okruženja, strukture obrazaca prirodnog i ljudskom rukom oblikovanih delova okruženja i sistemi ideja u oblikovanju okruženja.<br>Origins of functions, connections of feedback systems with emerging offunctions, primary functions as functions of physical flow between adaptivesystems and their environment, perceptual-analytical functions as functionsof information flow between adaptive systems and their environment,structures of patterns (levels of form) of natural and human designedelements of environment, historical developement and complexification ofrelationships of human soci-eties with their environment.
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Panieri, Paolo. "Traduzione di ten' oblaka na drugom beregu di zachar prilepin." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/7166/.
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Questa è la traduzione dal russo all'italiano del racconto "Ten' oblaka na drugom beregu" (L'ombra di una nuvola sull'altra riva), parte della raccolta di racconti "Vos'merka" dello scrittore Zachar Prilepin, una delle figure di maggior spicco nella scena letteraria russa contemporanea. La raccolta in questione non è mai stata tradotta verso l'italiano. Ho scelto questo racconto perché mi è sembrato particolarmente esemplificativo delle tematiche e del linguaggio dell'autore. Il mio lavoro include, oltre alla traduzione, anche un'introduzione, nella quale contestualizzo Prilepin all'interno del panorama letterario contemporaneo; e una nota alla traduzione, nella quale parlo più specificatamente di quel determinato racconto.
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Costa, Rossana Marina Soares da. "Avaliação do potencial antioxidante da folha de Cydonia oblonga Miller." Bachelor's thesis, [s.n.], 2009. http://hdl.handle.net/10284/1614.
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Monografia apresentada à Universidade Fernando Pessoa para obtenção do grau Licenciada em Ciências Farmacêuticas<br>Neste trabalho é feita uma revisão da literatura no que concerne aos fundamentos teóricos e à
importância dos antioxidantes na saúde humana, especialmente dos compostos fenólicos, e
aos estudos fitoquímicos previamente realizados na espécie Cydonia oblonga Miller. O
objectivo do trabalho de investigação realizado no âmbito desta monografia foi o de estudar o
potencial antioxidante da folha de Cydonia oblonga Miller, em comparação com do chá verde
(Camellia sinesis).
Para a prossecução do trabalho experimental foram analisadas doze amostras de folha de
marmeleiro provenientes do Norte e do Centro de Portugal (Carrazeda de Ansiães e Covilhã,
respectivamente), colhidas em Junho e Outubro de 2006. A preparação das amostras consistiu
numa extracção com metanol (40ºC). As propriedades antioxidantes foram avaliadas através
do poder redutor determinado pelo método de Folin-Ciocalteu e da capacidade sequestrante
dos extractos para o radical livre 2,2´-difenil-1-picrilhidrazilo (DPPH).
Os resultados deste estudo revelaram que, no que diz respeito ao poder redutor, a folha do
marmeleiro possui uma capacidade redutora significativamente superior à do chá verde (valor
médio de 227,8 ± 34,9 e 112,5 ± 1,5 g/kg de folha seca, respectivamente; P ≤ 0,001).
As amostras provenientes de Carrazeda de Ansiães apresentaram um índice de Folin-
Ciocalteu significativamente superior às da Covilhã (valor médio de 252,6 ± 23,7 e 203,0 ±
25,4 g/kg de folha seca, respectivamente; P ≤ 0,005). No entanto, não foram observadas
diferenças significativas nos índices de Folin-Ciocalteu de acordo o mês de colheita.
A capacidade sequestrante dos extractos da folha de marmeleiro para o radical DPPH foi
semelhante com um EC50 médio de 21,6 ± 3,5 μg/ml, mas significativamente superior ao do
extracto de chá verde (EC50 médio de 12,7 ± 0,1 μg/ml; P ≤ 0,005). Estes resultados indicam
que a actividade anti-radicalar da folha do marmeleiro é significativamente inferior à do
extracto de chá verde.
Não foram encontradas diferenças significativas no potencial anti-radicalar de acordo com a origem geográfica ou o estado de maturação.
Neste trabalho de monografia demonstra-se que a folha de C. oblonga é uma fonte excelente e
económica de antioxidantes, podendo ser utilizada na prevenção e/ou tratamento de doenças nas quais os radicais livres estão envolvidos.
11
Biljana, Stankov. "Istraživanja kompleksnih oblika spektralnih linija berilijuma u prisustvu berilijumske prašine." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=114644&source=NDLTD&language=en.
Full textAbstract:
Opisani su detalji konstrukcije novog izvora plazme, u impulsnom režimu, konstruisanog za potrebe ekscitacija linija berilijuma u prisustvu berilijumske prašine. Konstrukcija izvora je ostvarena na takav način da je sprečeno prodiranje čestica prašine u atmosferu laboratorije. Opisane su dodatne 2 cevi za pražnjenje konstruisane od Al2O3 i SiO 2 . Pronađeni su i opisani optimalni uslovi za radizvora plazme. Vrednosti elektronske koncentracije, određene nakon maksimumastruje, korišćenjem vodonikove balmer beta linije, kreću se u opsegu 1,16-9,2 ∙1022 m -3 . Elektronska temperatura je određena na osnovu relativnih intenziteta linija dva uzastopna jonizaciona stanja istog elementa i kreće se u opsegu 10 500-15 500 K. Prikazane su snimljene linije berilijuma, osim rezonantnih. Dato je poređenje snimljenih linija sa postojećim teorisjkim podacima. Dve linije berilijuma koje se pojavljuju sa zabranjenom komponentom su prikazane prvi put. Pokazano je da postoji tipičan trend zavisnosti odnosa dozvoljene i zabranjene komponente, kao i rastojanja između položaja maksimuma intenziteta ove dve komponente, od elektronske koncentracije, koji se javlja kod linija sa zabranjenim komponentama, što govori omogućnosti ove linije za primenu u dijagnostici plazme.<br>Construction details of new plasma source, running in pulsed regime, for beryllium spectral line studies, in the presence of beryllium dust particles are presented. The construction of the source was realised in such a way that it prevented the ingress of dust particles into the laboratory atmospher. Construction details andtesting of BeO discharge tube in comparison with SiO2 and Al2O3 discharge tubes are presented, also. Optimal conditions for plasma source operation and beryllium line studies are found. The electron density measured after discharge current maximum is determined from the peak separation of the hydrogen Balmer betaspectral line, and the electron temperature is determined from the ratios of the relative intensities of Be spectral lines emitted from successive ionized stages of atoms. Maximum values of electron density and temperature are measured to be 9.3∙1022 m -3 and 16 800 K, respectively. The recorded spectral lines of beryllium, other then resonant lines, are presented. The lines with forbidden component are described for the first time. The functional dependence of the wavelength separation range and peak intensity ratio of these lines uponelectron number density suggests the complex profile of the forbidden and allowed line, which can be used for diagnostics of low-temperature beryllium containing plasmas.
12
Milivoj, Radojčin. "Uticaj osmotskog i konvektivnog sušenja na fizičkeosobine dunje (Cydonia oblonga Mill.)." Phd thesis, Univerzitet u Novom Sadu, Poljoprivredni fakultet u Novom Sadu, 2015. https://www.cris.uns.ac.rs/record.jsf?recordId=94094&source=NDLTD&language=en.
Full textAbstract:
Važnost istraživanja fizičkih osobina ogleda se u tome, što su neke od tih osobina prvo štose uočava na sušenom voću. Druge fizičke osobine spoznaju se tokom konzumiranja. Osimtoga, fizičke osobine su i od značaja prilikom projektovanja opreme za preradupoljoprivrednih proizvoda. Predmet istraživanja doktorske disertacije su promene fizičkihosobina dunje tokom osmotskog i konvektivnog sušenja. Istraživane su promene sledećihosobina: vlažnosti, zapremine, mehaničkih osobina i boje. Kao dodatak osnovnim merenjimaobavljene su hemijska i senzorska analiza finalnog proizvoda. Eksperiment osmotskogsušenja obavljen je kao dvofaktorni. Faktori eksperimenta su temperatura i koncentracijaosmotskog rastvora. U eksperimentu je korišćena dunja sorte leskovačka. Ovu sortu odlikujeprijatna aroma, oblik i dimenzije pogodne za sušenje.Disperzionom analizom rezultata merenja fizičkih osobina tokom eksperimentaosmotskog sušenja potvrđeno je da izabrani nivoi temperature i koncentracije osmotskograstvora utiču na promenu vlažnosti dunje tokom 180 minuta osmotskog sušenja. U slučajupovećanja mase suve materije disperzionom analizom potvrđen je statistički značajan uticajkoncentracije i interakcije koncentracije i temperature na promenu ispitivane veličine.Najintenzivnije promene vlažnosti i povećanja suve materije izmerene su u prvih 20 minutaosmotskog sušenja.Promena oblika dunje u formi kocke, do kojih dolazi tokom osmotskog sušenja jeanizotropna. Razlog anizotropnog skupljanja tkiva može biti orijentacija vlakana inehomogena struktura materijala. Promena zapremine izražena je zapreminskim skupljanjemSV. Izvedena je jednačina kojom je utvrđena zavisnost promene zapremine od količinerazmenjene materije tokom osmotskog sušenja. Najveća promena zapremine izmerena je priosmotskom sušenju pri najvišim vrednostima temperature i koncentracije osmotskograstvora.Mehaničke osobine dunje tokom osmotskog sušenja predstavljene su sa dva pokazatelja,otpornošću na razaranje i modulom elastičnosti. Otpornost na razaranje je u ovoj tezioriginalno predstavljena parametrom f. Ovaj parameter predstvalja relativnu promenu silerazaranja tokom osmotskog sušenja. Disperzionom analizom utvrđen je uticaj temperatureosmotskog rastvora na mehaničke osobine dunje. Osmotski rastvor temeperature 60oCizaziva omekšavanje tkiva dunje. Međutim, omekšavanje tkiva dunje pozitivno utiče načvrstoću krajnjeg proizvoda. Kao drugi pokazatelj mehaničkih osobina upotrebljen je modulelastičnosti. Promene modula elastičnosti slične su promenama f parametra. Na osnovupromena oba pokazatelja mogu se doneti isti zaključci o uticaju faktora eksperimenta namehaničke osobine tkiva dunje.Tkivo dunje je izloženo vazduhu tokom konvektivnog sušenja intenzivno menja boju. Ueksperimentu je upotrebljen sumpordioksid kao zaštita od tamnjenja tkiva. Ukupna promenaboje najveća je na uzorcima dunje koji su sušeni rastvorom koncentracije 65oBx. Međutim,tokom konvektivnog sušenja ističe se pozitivan uticaj ovog tretmana na promenu boje dunje.Veća količina saharoze koja se zadržava na površini uzoraka dunje predstavlja barijeruizmeđu između materijala i vazduha i spračava tamnjenje tkiva.Regresionom analizom rezultata merenja promene vlažnosti, zapremine i boje pronađenisu empirijski modeli koji opisuju merene veličine tokom osmotskog sušenja. Jednačineodabrane za modelovanje promene vlažnosti proširene su uticajnim faktorima ubezdimenzionalnom obliku. Proširenjem matematičkih modela stiče se njihova univerzalnostu opsegu istraživanih vrednosti temperature i koncentracije osmotskog rastvora. Primenjenimodeli mogu se uspešno koristiti za predviđanje svih merenih veličina. Uspešnost modelapotvrđena je visokim vrednostima koeficijenta korelacije i niskim vrednostima srednjeprocentualne greške.Senzorskim analizama obavljenim panelnim ispitivanjem, uzorci tretirani osmotskimrastvorom ocenjeni su kao kvalitetniji od onih koji su samo konvektivno osušeni.Poređenjem rezultata kvantitativnih i kvalitativnih analiza može se zaključiti da osmotskosušenje kao predtretman konvektivnom sušenju pozitivno utiče na kvalitet sušene dunje kaofinalnog proizvoda. <br>The importance of researching physical properties lies in the fact that some of theseproperties are what we first notice about dried fruit. Other physical properties areexperienced during consumption. Moreover, physical properties are also important whendesigning equipment for processing agricultural products. The subject of the research in thisdoctoral dissertation is changes in physical properties of quince during osmotic andconvective drying. The investigation included changes in the following properties: moisture,volume, mechanical properties and colour. Apart from the basic measurements, the researchalso included chemical and sensory analyses of the final product. The experiment of osmoticdrying was performed as a two-factor experiment, while factors were the temperature and theconcentration of osmotic solution. The variety of quince used in the experiment was“Leksovačka”, which is a variety with a pleasant aroma, and the shape and dimensionssuitable for drying.Dispersion analysis of the measured results in the experiment of osmotic drying showedthat the temperature and concentration of osmotic solution affect the changes in moisture ofquince during 180 minutes of osmotic drying. In the case of the increased mass of dry matter,analysis of variance pointed to statistically significant effect of concentration and interactionof concentration and temperature on the change in the examined size. The most intensechanges in moisture and increase of dry matter were measured in the first 20 minutes ofosmotic drying.The change of the shape of quince into the shape of a cube, which occurs during osmoticdrying, is anisotropic. The reason of anisotropic shrinkage of tissue can be fibre orientationand inhomogeneous structure of the material. The volume change is expressed in volumetricshrinkage SV. The equation derived was used to determine the dependence of the change involume on the amount of the matter exchanged during osmotic drying. The greatest changein volume was measured during osmotic drying at the highest values of temperature and thehighest values of concentration of osmotic solution.Mechanical properties of quince during osmotic drying were represented by twoindicators: resistance to rupture and modulus of elasticity. Resistance to rupture in this thesiswas originally presented by the parameter f. This parameter represents a relative difference offorce of rupture. Dispersion analysis determined the effect of the temperature of osmoticsolution on mechanical properties of quince. The solution temperature of 60oC causessoftening of the quince tissue. However, softening of the tissue has positive effects onfirmness of the final product. The other indicator of mechanical properties was modulus ofelasticity. The changes in the modulus of elasticity are similar to the changes of theparameter f. The changes in both indicators lead to the same conclusions about the impact ofthe factors of the experiment on the mechanical properties of quince tissue.Quince tissue exposed to air changes its colour intensely. In this experiment, sulphurdioxide is used as protection against darkening of the tissue. The total colour change was thegreatest in the quince samples dried using a solution with the concentration of 65oBx.However, during convective drying one can see the positive impact of this treatment on thecolour change in quince. A larger amount of saccharose which is retained on the surface ofthe samples acts as a barrier between the material and the air, preventing darkening of thetissue.Regression analysis of the measured results of the changes in moisture, volume andcolour, generated empirical models that describe the measured values during osmotic drying.The equations selected for modelling of moisture changes were extended to includeinfluential factors in dimensionless form. What is achieved by extending the mathematicalmodels is universality of the models in the range of the investigated values of temperatureand concentration of osmotic solution. The used models can be successfully applied forprediction of all of the measured values. The successfulness of the model is confirmed byhigh values of the correlation coefficient and low values of the mean percentage error.Sensory analyses performed using panel testing showed that the samples treated with osmoticsolution were evaluated to be of higher quality than the samples that were only convectivelydried. By comparing the results of quantitative and qualitative analyses, it can be concludedthat osmotic drying, as a pre-treatment to convective drying, positively affects the quality ofdried quince as a final product.
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au, turtle111@aapt net, and Jacqueline Giles. "The underwater acoustic repertoire of the long-necked, freshwater turtle Chelodina oblonga." Murdoch University, 2005. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20061121.103729.
Full textAbstract:
The major question addressed by this project was to determine if the long-necked,
freshwater turtle Chelodina oblonga, vocalise underwater and whether their vocal activity could
be related to behavioural or ecological aspects of their lives. These turtles often live in
wetlands where visibility is restricted due to habitat complexity or light limitation caused by
factors such as tannin-staining, or turbidity. For many aquatic animals, sound is a useful
means of communication over distances beyond their visual acuity. This thesis gives the
first detailed account of the underwater vocal repertoire of C. oblonga.
In total, over 230 days were spent in the field and more than 500 hours of tape recordings
were made for this research. Initially, a number of recordings took place in three wetlands
known to support turtle populations: Blue Gum Lake; Glen Brook Dam; and Lake
Leschenaultia in Perth, Western Australia; in order to determine the nature of the
freshwater sound field and place turtle vocalisations into the context in which they were
vocalising. The wetlands differed in terms of degree of enrichment, substrate material, water
depth and habitat complexity. Recordings were made over a four-week period in the last
month of summer and the first week of autumn (Feb-Mar 2003). Invertebrate sweeps were
also taken over a two-week period at each recording site to determine if invertebrate
distributions were related to patterns of sonic activity. To determine the influence of wind
on ambient noise; recordings were undertaken on winter mornings (June-August, 2003) at
Blue Gum Lake and Glen Brook Dam at locations north, south, west and east for four
different wind speeds Beaufort Wind Scale (BWS) 0,1,2 & 3.
There were seven distinctive calls recognised in the recordings. The frequency bandwidth
most utilised by organisms was between 3 kHz up to around 14 kHz, with the exception of the bird-like song; which extended from 500 Hz up to around 10 kHz. Blue Gum Lake
contained a more diverse and abundant assemblage of invertebrates than Lake
Leschenaultia and Glen Brook Dam. Correspondingly, a greater diversity of calls was
recorded at Blue Gum Lake, as well as the presence of chorus activity, which was not heard
at the two less-enriched sites. The periods of greatest diversity and abundance of
macroinvertebrates was synonymous with the increased sonic activity at dusk and midnight
with noise levels greatest at dusk in particular, and to a lesser extent at midnight. There was
no difference in ambient noise at Blue Gum Lake or Glen Brook Dam at wind speeds of
Beaufort Wind Scale 0, 1 and 2.
Turtles from three populations were recorded in artificial environments: consisting of
round, plastic, above-ground ponds (1.8m dia. x 0.65m depth), which were set up to recreate
small wetlands. Recordings occurred from September to October, 2003 and from
February to December, 2004 as well as January, 2005. Seven hatchling and five juvenile
turtles (CL <10cm) were also recorded in order to ascertain whether very young turtles
vocalised. Hatchlings were recorded in a glass aquarium (35.5cm length x 20cm width x
22.0cm depth) and juveniles were placed into a below-ground outdoor pond (1m length x
0.5m width x 0.4m depth). Recordings occurred from as early as 4.30am (dawn recordings)
to as late as 1.30am (evening recordings).
The recordings revealed that turtles utilise an underwater acoustic communication system
(calling at the waters surface was also noted but these were not recorded or a part of this
research) involving a repertoire of both complex and percussive sounds with short, medium
and potentially long-range propagation characteristics. Complex structures included
harmonically related elements (richly or sparsely) and different rates of frequency
modulation. Frequency use extended beyond the in-air auditory sensitivity known for a
single species of turtle studied from the family Chelidae; with calls ranging from around 100
Hz in some of the percussive displays, to as high as 3.5 kHz in some complex calls, with
clicks extending beyond the 20 kHz upper limit of the recording system. However, most
of C. oblongas vocalisations had dominant frequencies below 1 kHz. Turtles were
intermittent callers with an extensive vocal repertoire of seventeen (17) vocal categories -
highly suggestive of complex social organisation. Vocalisations included: a) clacks; b) clicks;
c) squawks; d) hoots; e) short chirps; f) high short chirps; g) medium chirps; h) long chirps;
i) high calls; j) cries or wails; k) cat whines; l) grunts; m) growls; n) blow bursts; o) staccatos;
p) a wild howl; and q) drum rolling. Also, two sustained pulse-bouts were recorded during
the breeding months, hypothesised to function as acoustic advertisement displays possibly
calling songs. Hatchling turtles were not heard to vocalise within the audible range. Only a
single complex vocalisation was heard produced by the juvenile turtles, with a number of
percussive calls.
Preliminary playback trials were conducted under free-field conditions and within an
artificial environment, which consisted of a below ground rectangular tank (2.4m length x
0.8m width x 0.6m deep). A number of turtle calls recorded in the artificial ponds were
selected for playback. A UW 30 speaker was used for broadcast of calls. The free-field
playbacks occurred at Mabel Talbot Lake and Blue Gum Lake during the months of April
and May, 2005. Playback using 14 seconds of an artificially constructed sequence from the
sustained pulse-bout occurred in the artificial channels. This sequence consisted of some
of the first phase pulses followed by a section of the vibrato.
The preliminary free-field playback trials indicated that turtles had some interest in the calls
being played by responding with an alert posture. Turtles were shown to remain in the
alert posture for a significantly longer time than when no sound was played or when white
noise was played. The extensive repertoire and initial responses to the free-field playbacks
indicated that sound has some biological importance for C. oblonga, although results of
playbacks under artificial conditions were inconclusive.
14
Giles, Jacqueline. "The underwater acoustic repertoire of the long-necked, freshwater turtle Chelodina oblonga." Giles, Jacqueline (2005) The underwater acoustic repertoire of the long-necked, freshwater turtle Chelodina oblonga. PhD thesis, Murdoch University, 2005. http://researchrepository.murdoch.edu.au/39/.
Full textAbstract:
The major question addressed by this project was to determine if the long-necked, freshwater turtle Chelodina oblonga, vocalise underwater and whether their vocal activity could be related to behavioural or ecological aspects of their lives. These turtles often live in wetlands where visibility is restricted due to habitat complexity or light limitation caused by factors such as tannin-staining, or turbidity. For many aquatic animals, sound is a useful means of communication over distances beyond their visual acuity. This thesis gives the first detailed account of the underwater vocal repertoire of C. oblonga.
In total, over 230 days were spent in the field and more than 500 hours of tape recordings were made for this research. Initially, a number of recordings took place in three wetlands known to support turtle populations: Blue Gum Lake; Glen Brook Dam; and Lake Leschenaultia in Perth, Western Australia; in order to determine the nature of the freshwater sound field and place turtle vocalisations into the context in which they were vocalising. The wetlands differed in terms of degree of enrichment, substrate material, water depth and habitat complexity. Recordings were made over a four-week period in the last month of summer and the first week of autumn (Feb-Mar 2003). Invertebrate sweeps were also taken over a two-week period at each recording site to determine if invertebrate distributions were related to patterns of sonic activity. To determine the influence of wind on ambient noise; recordings were undertaken on winter mornings (June-August, 2003) at Blue Gum Lake and Glen Brook Dam at locations north, south, west and east for four different wind speeds - Beaufort Wind Scale (BWS) 0,1,2 and 3.
There were seven distinctive calls recognised in the recordings. The frequency bandwidth most utilised by organisms was between 3 kHz up to around 14 kHz, with the exception of the 'bird-like song'; which extended from 500 Hz up to around 10 kHz. Blue Gum Lake contained a more diverse and abundant assemblage of invertebrates than Lake Leschenaultia and Glen Brook Dam. Correspondingly, a greater diversity of calls was recorded at Blue Gum Lake, as well as the presence of chorus activity, which was not heard at the two less-enriched sites. The periods of greatest diversity and abundance of macroinvertebrates was synonymous with the increased sonic activity at dusk and midnight with noise levels greatest at dusk in particular, and to a lesser extent at midnight. There was no difference in ambient noise at Blue Gum Lake or Glen Brook Dam at wind speeds of Beaufort Wind Scale 0, 1 and 2.
Turtles from three populations were recorded in artificial environments: consisting of round, plastic, above-ground ponds (1.8m dia. x 0.65m depth), which were set up to recreate small wetlands. Recordings occurred from September to October, 2003 and from February to December, 2004 as well as January, 2005. Seven hatchling and five juvenile turtles (CL < 10cm) were also recorded in order to ascertain whether very young turtles vocalised. Hatchlings were recorded in a glass aquarium (35.5cm length x 20cm width x 22.0cm depth) and juveniles were placed into a below-ground outdoor pond (1m length x 0.5m width x 0.4m depth). Recordings occurred from as early as 4.30am (dawn recordings) to as late as 1.30am (evening recordings).
The recordings revealed that turtles utilise an underwater acoustic communication system (calling at the water's surface was also noted but these were not recorded or a part of this research) involving a repertoire of both complex and percussive sounds with short, medium and potentially long-range propagation characteristics. Complex structures included harmonically related elements (richly or sparsely) and different rates of frequency modulation. Frequency use extended beyond the in-air auditory sensitivity known for a single species of turtle studied from the family Chelidae; with calls ranging from around 100 Hz in some of the percussive displays, to as high as 3.5 kHz in some complex calls, with 'clicks' extending beyond the 20 kHz upper limit of the recording system. However, most of C. oblonga's vocalisations had dominant frequencies below 1 kHz. Turtles were intermittent callers with an extensive vocal repertoire of seventeen (17) vocal categories - highly suggestive of complex social organisation. Vocalisations included: a) clacks; b) clicks; c) squawks; d) hoots; e) short chirps; f) high short chirps; g) medium chirps; h) long chirps; i) high calls; j) cries or wails; k) cat whines; l) grunts; m) growls; n) blow bursts; o) staccatos; p) a wild howl; and q) drum rolling. Also, two sustained 'pulse-bouts' were recorded during the breeding months, hypothesised to function as acoustic advertisement displays - possibly 'calling songs'. Hatchling turtles were not heard to vocalise within the audible range. Only a single complex vocalisation was heard produced by the juvenile turtles, with a number of percussive calls.
Preliminary playback trials were conducted under free-field conditions and within an artificial environment, which consisted of a below ground rectangular tank (2.4m length x 0.8m width x 0.6m deep). A number of turtle calls recorded in the artificial ponds were selected for playback. A UW 30 speaker was used for broadcast of calls. The free-field playbacks occurred at Mabel Talbot Lake and Blue Gum Lake during the months of April and May, 2005. Playback using 14 seconds of an artificially constructed sequence from the sustained 'pulse-bout' occurred in the artificial channels. This sequence consisted of some of the first phase pulses followed by a section of the 'vibrato'.
The preliminary free-field playback trials indicated that turtles had some interest in the calls being played by responding with an 'alert posture'. Turtles were shown to remain in the alert posture for a significantly longer time than when no sound was played or when white noise was played. The extensive repertoire and initial responses to the free-field playbacks indicated that sound has some biological importance for C. oblonga, although results of playbacks under artificial conditions were inconclusive.
15
Jan, Hansman. "Projektovanje izgradnje i testiranje 9``x 9`` NaI(Tl) spektrometra oblika jame." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2015. https://www.cris.uns.ac.rs/record.jsf?recordId=94811&source=NDLTD&language=en.
Full textAbstract:
Predmet istraživanja doktorske disertacije je konstruisanje,izgradnjai uvođenje u rutinski rad, kao i naučna istraživanja detektorskogsistema, kome će kao osnova poslužiti 9``x 9`` NaI(Tl) spektrometaroblika jame. Pomenuti detektorski sistem će zbog veličine aktivnezapremine kao i njenog specifičnog oblika (oblika jame) posedovatinajveću efikasnost detekcije u poređenju sa svim gamaspektrometrijskim sistemima trenutno u upotrebi u Laboratorijiza nuklearnu fiziku, Prirodno-matematičkog fakulteta, Univerziteta uNovom Sadu i šire. Gamaspektroskopija je nedestruktivan metodkoji se može primeniti za određivanje niskih aktivnosti uzoraka bezprethodne hemijske pripreme i predstavlja zlatni standard uradioekološkim istraživanjima,kontroli životne sredine itd.Detektorski sistem velike efikasnosti koji je tokom izrade doktorata166 pušten u rad, omogućuje značnu redukciju vremena merenja kao isniženje minimalnih detektabilnih aktivnosti. Na ovaj način je Laboratorija za nuklearnu fiziku dobila detekcioni sistem pomoću kojeg je moguće vršiti analizu uzoraka niske aktivnosti u naučne svrhe kao i za rutinsku kontrolu uzoraka iz životne sredine.Za upotrebu 9``x 9`` NaI(Tl) spektrometra oblika jame u rutinskimmerenjima radiološke kontrole uzoraka niskih aktivnosti, izvršena jeneophodna adekvatna kalibracija efikasnosti detektorskog sistema ito na razne oblike matrica uzorakai na taj način su rezultati merenjanačinjeni uporedivim sa akreditovanim poluprovodničkim sistemimaLaboratorije za nuklearnu fiziku.<br>Subject of doctoral dissertation research is the design, construction and implementation in routine work, as well as scientific research of detector system, as the basis on well-type 9``x 9`` NaI (Tl) spectrometer. The aforementioned detector system, due to the size of the active volume as well as its specific form (well) possess the highest detection efficiency compared with all gammaspectrometric systems currently in use at the Laboratory of Nuclear Physics, Faculty of Science, University of Novi Sad and beyond. Gammaspectroscopy is a non-destructive method that can be applied for the determination of low activity samples without chemical preparation and is the gold standard in radioecological studies, environmental control and so on.The detector systems high efficiency, which was during the preparation of doctoral dissertation put into operation, allows significant reduction in measurement time as well as lowering the minimum detectable activity. In this way, the Laboratory for Nuclear Physics get detection system which can be used for the analysis of samples of low activity for scientific purposes as well as for routine control of environmental samples.For use well type 9``x 9`` NaI (Tl) spectrometer in routine measurements of radiological samples of low activity, there was a need adequate calibration of the detector efficiency of the system with various forms of sample matrix thus the results of measurements made comparable with accredited semiconductor systems in Laboratory for Nuclear physics.
16
Stjepan, Galamboš. "Uticaj oblika i vrste aerodinamičke opreme privrednih motornih vozila na otpor vazduha." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=114836&source=NDLTD&language=en.
Full textAbstract:
Usavršavanje aerodinamike privrednim motornih vozila putem optimizacije aerodinamičkih dodataka u svrhu postizanja boljih aerodinamičkih performansi u vidu umanjenja sile otpora vazduha. Prostiranje vazdušne struje oko modela je unapređeno optimizacionim dodacima što se sve ogleda u smanjenoj potrošnji goriva privrednog motornog vozila. Osim virtuelnih simulacija računarske dinamike fluida, u radu je prikazana validacija rezultata putem eksperimentalnog merenja u vazdušnom tunelu.<br>The improvement of commercial motor vehicle's aerodynamics through optimization process of aerodynamic equpments in order to achieve better aerodynamic performance in the form of drag force reduction. The expansion of the air flow around the model is enhanced by optimization accessories, which is all reflected in the reduced of fuel consumption of the commercial motor vehicle. In addition to virtual simulations of computational fluid dynamics, the paper presents the validation of results by experimental measurement in the wind tunnel.
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Gečiauskaitė, Raminta. "Pirmamečių kriaušaičių skiepų su sėkliniu Pyrus pyraster ir vegetatyviniu Cydonia oblonga poskiepiais augimo ypatumai." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20090608_123603-22131.
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Tyrimai atlikti 2008 m. LŽŪU medelyne įvertinant pirmamečių kriaušaičių, skiepytų į Pyrus pyraster Burgsd. ir Cydonia oblonga Mill. poskiepius, augimo dinamiką ir biometrinius rodiklius. Tirtos pirmamečių kriaušaičių veislės Suvenirs, Kafedralna, Kleboninė, Concorde ir Mramornaja, skiepytos į sėklinį Pyrus pyraster poskiepį ir veislė Kafedralna, skiepyta į Cydonia oblonga poskiepį. Analizuojant bandymą buvo atsižvelgiama į pagrindinius biometrinius skiepų rodiklius: aukštį, kamienėlių skersmenį, skiepų lapų masę ir lapų paviršiaus plotą. Tyrimais nustatyta, kad aukščiausi medeliai užaugo Suvenirs ir Kafedralna veislės, skiepytos į sėklinį Pyrus pyraster poskiepį. Storiausi kamienėliai buvo ΄Mramornaja΄, ΄Kleboninės΄ ir ΄Kafedralna΄ skiepytos į sėklinį Pyrus pyraster poskiepį. Mažiausi ir ploniausi - Kafedralna veislės skiepytos į Cydonia oblonga poskiepį. Intensyvus tirtų kriaušių veislių augimo tarpsnis tęsėsi nuo gegužės mėn. 30 d. iki rugpjūčio mėn. 20 d., o kamienėlių storėjimo – nuo gegužės mėn. 30 d. iki rugsėjo mėn. 10 d. Didžiausią lapų paviršiaus plotą išaugino ΄Mramornaja΄ skiepyta į Pyrus pyraster poskiepį ir veislės Kafedralna skiepyta į Cydonia oblonga poskiepį. Didžiausia lapų masė tarp kriaušaičių, skiepytų į Pyrus pyraster poskiepį, nustatyta Mramornaja ir Kafedralna veislių.<br>The experiment took place in 2008 in the Lithuania’s University of Agriculture evaluating the dynamic growth of first – year pear – trees on Pyrus pyraster Burgsd. and vegetatyve on Cydonia oblonga Mill. rootstock. The research grafted cv. 'Suvenirs', 'Kafedralna', 'Kleboninė', 'Concorde‘ and 'Mramornaja', grafted on Pyrus pyraster rootstock and 'Kafedralna' on Cydonia oblonga rootstock. While analyzing the attention experiment was paid to their biometrical parameters of grafts highness, stem thickness, leaves’ mass, their surface area. The research showed, that the highest pear - trees were raised from ΄Suvenirs΄ and 'Kafedralna' on Pyrus pyraster rootstock. The thickesst stems were ΄Mramornaja΄,΄Kleboninė΄ and 'Kafedralna' on Pyrus pyraster rootstock. The smallest and the slimmest stems - 'Kafedralna' on Cydonia oblonga rootstock. The most intensive period of investigation of growth continued from May 30 till August 20 th, and the period of stem thickness - from May 30 till September 10 th. The largest surface area of leaves grown ΄Mramornaja΄ on Pyrus pyraster rootstock and 'Kafedralna' on Cydonia oblonga rootstock. The largest leaves’ mass were ΄Mramornaja΄and 'Kafedralna', inoculation into Pyrus pyraster rootstock.
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Stronach, Andrew James. "Experimental and numerical evaluation of circular to oblong gas turbine transition ducts with offset." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0021/MQ53028.pdf.
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Siddika, Ayesha. "Development of cryopreservation based conservation approaches for Cydonia oblonga Mill. and Olea Europeae L." Thesis, University of Derby, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443571.
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Đorđije, Doder. "Uticaj prekidnih režima na fenomene prenosa mase i toplote pri sušenju materijala sfernog oblika." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2019. https://www.cris.uns.ac.rs/record.jsf?recordId=110746&source=NDLTD&language=en.
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Prikazana je procedura modelovanja prekidnog sušenja materijala sfernog oblika u tankom sloju, nakon čega je pokrenuta računarska simulacija procesa na osnovu predloženog modela. Zatim, odrađeno je eksperimantalno istraživanje, za šta su korišćeni svježe ubrani orasi u ljusci, bez komine. Nakon što je statistički potvrđena pouzdanost modela, on je iskorišćen kao baza formiranje modela za simulaciju sušenja u debelom sloju. Posle toga su urađeni eksperimenti i za druge materijale različitih osobina (krompir, bundeva i kestenje), da bi se izveli zaključci o mogućnosti energetske uštede u procesima konvektivnog sušenja u zavisnosti od fizičkih osobina materijala. Ovim istraživanjem pokazano je da su sa stanovišta uštede energije prekidni režimi konvektivnog sušenja preporučljiviji kod materijala koji imaju veću efektivnu difuzivnost.<br>This research shows the procedure of modeling the intermittent drying of sphereshapedmaterials in a thin-layer, after which the computer simulation was done, basedon the proposed model. Тhe experimental investigation has been done, where thefresh collected in-shell walnuts had served as the main drying material. As the modelreliability was experimentally confirmed, it was used as а basis for creating а model fordeep-bed drying simulation. Afterwards, the experimental investigation was done forother materials as well (potato, pumpkin and chestnuts), in order to draw theconclusions concerning the possibility of energy saving in convective drying processes,as it depends on physical properties of a material. This research showed that, from theperspective of energy saving, it is more advisable to use an intermittent regime if amaterial has a higher effective diffusivity.
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Washam, Matthew. "The effects of salacia oblonga extract on postprandial glycemia following a solid, high starch meal." Connect to resource, 2006. http://hdl.handle.net/1811/6480.
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Thesis (Honors)--Ohio State University, 2006.<br>Title from first page of PDF file. Document formatted into pages: contains 47 p.; also includes graphics. Includes bibliographical references (p. 36-39 Available online via Ohio State University's Knowledge Bank.
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Plavka, Skakun. "Prilog istraživanju uticaja raznosmernog tečenja metala na parametre procesa hladnog istiskivanja delova složenih geometrijskih oblika." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2015. http://www.cris.uns.ac.rs/record.jsf?recordId=92580&source=NDLTD&language=en.
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U disertaciji je elaborirana mogućnost primene relaksirajućih otvora kod istiskivanja delova sa ozubljenjem u cilju smanjenja parametara procesa. Primenjena su dva modela deformisanja, kada je otvor u pripremku i kada je otvor u žigu. Metodom gornje granice izvršena je teorijska analiza procesa i kreirano rešenje na osnovu koga su određeni deformaciona sila, pritisak na žig i promena geometrije dela. Pomoću eksperimenta istiskivanja i numeričke simulacije procesa izvršena je verifikacija teorijskog rešenja. Teorijski, eksperimentalni i rezultati simulacije procesa su pokazali da primena relaksirajućih otvora na analizirane tipove ozubljenja dovodi do smanjenja deformacione sile i pritiska u procesu.<br>Possibility of flow relief openings applying in cold extrusion of gear-like elements in order to reduce the process parameters is elaborated in this thesis. Two different deformation models are analysed: when the opening is in the billet and when the opening is in the punch. Upper bound method was applied for the process analysis and determination of deformation force, punch pressure and change of part geometry. Extrusion experiment and numerical simulation of process are used for verification of theoretical solution. Theoretical, experimental and numerical results confirmed that application of flow relief openings enables reduction of deformation force and punch pressure in the process of gear-like elements extrusion.
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Mendonça, Filho Carlos Victor. "Citotaxonomia de Machaerium Pers. e revisão taxonomica de Machaerium Sect. Oblonga (Benth.) Taub. (Leguminosae-Papilionoideae)." [s.n.], 2002. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314939.
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Orientadores: Eliana R. Forni Martins, Ana M. G. A. Tozzi<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-02T16:19:25Z (GMT). No. of bitstreams: 1
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Previous issue date: 2002<br>Resumo: O gênero Machaerium Pers. (Leguminosae Papilionoideae) abrange cerca de 120 espécies, com distribuição tipicamente neotropical e de ocorrência em diferentes tipos de hábitat. A maioria dos trabalhos sobre o gênero é quase sempre de caráter regional, onde os problemas taxonômicos têm sido perpetuados. Poucas espécies de Machaerium foram estudadas sob o ponto de vista biossistemático, incluindo a citotaxonomia. Estudos sobre as características de frutos, sementes e plântulas são também incipientes. Neste trabalho foi realizada a caracterização cromossômica de 18 espécies de Machaerium, sendo 16 novas contagens. O gênero apresenta número cromossômico 2n= 20, mas também foram encontradas espécies tetraplóides, com 2n= 40. As diferenças de ploidia auxiliaram na delimitação de algumas espécies. Um estudo da morfologia de frutos, sementes e plântulas de 19 espécies de Machaerium foi também realizado. As espécies foram agrupadas em categorias de acordo com o desenvolvimento do eixo embrionário, o número de pínulas na plúmula, o tipo de plântula e número de folíolos do primeiro nó eofilar. Estas informações auxiliaram no posicionamento das espécies dentro das seções do gênero e no estabelecimento de relações de afinidades entre as seções. Uma sinopse das seções de Machaerium também foi apresentada. Foram listadas 127 espécies, sendo duas espécies novas, e 13 variedades, totalizando 140 táxons para o gênero e 159 sinônimos, dos quais oito são novos. Foi sugerida a criação de uma nova seção para abrigar quatro espécies, com base em dados blastogênicos e listadas 41 espécies que não foram incluídas em nenhuma seção em trabalhos anteriores. Foram também listadas quatro espécies duvidosas e sete nomes inválidos. As seções do gênero foram lectotipificadas. A revisão taxonômica das espécies de Machaerium sect. Oblonga também foi apresentada. Foram apresentadas chave de identificação, descrições e ilustrações de 12 espécies e de uma variedade e a organografia de duas espécies novas que, posteriormente, serão publicadas. Foram listados cinco novos sinônimos e um nome novo e designados um epitipo e cinco lectótipos. Os dados fenológicos das espécies estudadas indicaram que elas não florescem simultaneamente numa mesma estação. As espécies ocorrem principalmente na região Sudeste e Sul do Brasil, mas são também encontradas espécies na Bahia e fora do Brasil, na Argentina, Paraguai, Peru, Bolívia, Colômbia, Venezuela, Guianas e Panamá. Foram observadas espécies com distribuição restrita, muito restrita e ampla. Algumas espécies amazônicas representam uma disjunção dentro de Machaerium sect. Oblonga<br>Abstract: The genus Machaerium (Leguminosae Papilionoideae) comprises about 130 species and is widespread in the Neotropics, in different habitat types. Most studies with this genus is mainly regional, and there are many taxonomic problems. Few species of Machaerium were studied in a biosystematics view, inc1uding citotaxonomy. Studies about the morphology of fruits, seeds and seedlings are meager. ln this work cytological studies were carried out for 18 species of Machaerium, 16 of which represent new counts. The species showed 2n=20, except for the three tetraploids, where 2n=40. Differences in ploidy help to delimit some species. The study of the morphology of fruits, seeds and seedlings of Machaerium, was also carried out. The species were grouped into categories related to the development of the embrio axis, the number of pinules in the plumule, the type of seedlings and the number of leaflets in the fusty eophyll node. This information¿s help on the placement of the species into sections. A synopses of the sections was also presented. The 140 taxa listed, inc1uded 127 species, two of them being new species and 13 varieties. A total of 159 synonyms were also listed, eight of which being new citations. it was suggested the creation of a new section to inc1ude four species, based on blastogenic data, whereas 41 species were not inc1uded in no section of the genus. F our dubius species and seven invalid names were also listed. The lectotipification of the sections of the genus were provided. It was also prepaired a taxonomic revision of Machaerium sect. Oblonga. Key for identification, descriptions and drawings of 12 species and one variety and the morphology of two new species were provided. Five new synonims and one new name were listed and one epitype and tive lectotypes were designated. The phenology of the species indicated they don't flowrish simultaneously, in a same season. The species occour mainly in the South and Southeastem Brazil, but also in Bahia, and outside Brazil, in Argentina, Paraguai, Peru, Bolivia, Colombia, Venezuela, Guianas and Panama. Species with restric, very restrict and wide distribution were observed. Some Amazonian species represented a disjunction inside Machaerium sect. Oblonga<br>Doutorado<br>Doutor em Biologia Vegetal
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Chu, Meng. "Intermolecular Association of an Oblong Shape-persistent Macrocycle and Refunctionalization of Folding ortho-Phenylene Oligomers." Miami University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=miami1468959764.
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Seifert, Karine Ester. "Produção de mudas de pêra por dupla-enxertia em interenxertos de marmeleiro utilizando o porta-enxerto japonês." Universidade Estadual do Oeste do Paraná, 2010. http://tede.unioeste.br:8080/tede/handle/tede/1405.
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Previous issue date: 2010-02-05<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Pear tree when grafted in quince rootstock they present reduced load. The Japonês quince tree could be an option a rootstock, however researches still revealed incompatibility in the nursery. Looking for to improve the seedlings production of pear using intergrafting, the objective of the present work went to develop a technology for producing seedlings of pear using 'Japonês' quince as a rootstock for pear through the use rustic graft quince, adopting the double-grafting process. Buds and cleft of the pear trees Seleta and Triunfo was grafted by the budding and cleft grafting, in cleft of 15 cm of the Portugal , Provence , Mendoza Inta-37 and Smyrna quince tree. The grafted were stored in cold camera (4ºC) for 24 hours. The cleft were grafted in Japonês roostock by cleft grafting. The treatments arranged in a 2 x 2 x 4 factorial scheme, the first factor composed of two pear cultivars ( Seleta and Triunfo ), the second factor by grafting the scion (grafting and budding) and the third factor by interstock of quince ( Portugal , Provence , Mendoza Inta-37 and Smyrna ), totaling 16 treatments with four replicates and five grafts per experimental unit, a total of 320 rootstocks and adopted DIC. After 60 days, the percentage of sprouting of the grafts and the filters were evaluated, repeated to the 120 days, besides the diameter and medium length of the grafts and the dry mass. The double-grafting is viable in the seedlings production pear tree intergrafting in the Japonês rootstocks, using with intergrafting Cydonia quince tree, also concluded that reduced the time the seedlings of pear and did not show visual incompatibility in the nursery, and the grafting was the best method of grafting, in which the cultivar Seleta showed higher growth of the grafts and interstock Smyrna and resulted in higher budding graft pear and Mendoza Inta-37 higher diameter<br>Plantas de pereira quando enxertadas em marmeleiros apresentam porte reduzido. O marmeleiro Japonês poderia ser uma opção como porta-enxerto, no entanto pesquisas revelaram incompatibilidade ainda no viveiro. Buscando aperfeiçoar a produção de mudas de pêra utilizando interenxerto, o objetivo do presente trabalho foi desenvolver uma tecnologia de produção de mudas de pereira utilizando marmeleiro Japonês como porta-enxerto para pereiras rústicas através da utilização enxerto de marmeleiro, adotando o processo de dupla-enxertia. Borbulhas e garfos das pereiras Seleta e Triunfo foram enxertados pelo processo de borbulhia e garfagem em garfos de 15 cm dos marmeleiros Portugal , Provence , Mendoza Inta-37 e Smyrna . Os garfos enxertados foram armazenados em câmara fria (4ºC) por 24 horas. Em seguida foram enxertados pelo processo de garfagem em porta-enxertos do marmeleiro Japonês . Os tratamentos foram arranjados no esquema fatorial 2 x 2 x 4, sendo o primeiro fator composto pelas duas cultivares de pêra ( Seleta e Triunfo ), o segundo fator pelo processo de enxertia da cultivar copa (garfagem e borbulhia) e o terceiro fator pelos interenxertos de marmeleiro ( Portugal , Provence , Mendoza Inta-37 e Smyrna ), totalizando 16 tratamentos, com quatro repetições e cinco enxertos por unidade experimental, com um montante de 320 porta-enxertos e adotado o delineamento estatístico inteiramente casualizado (DIC). Passados 60 dias, foi mensurada a porcentagem de brotação dos enxertos e dos interenxertos, repetidas aos 120 dias, além do diâmetro e comprimento médio dos enxertos e a massa seca. Concluiu-se que a dupla-enxertia foi viável na produção de mudas interenxertadas de pereira no porta-enxerto Japonês , utilizando como interenxerto marmeleiros de gênero Cydonia, também concluiu-se que reduziu o tempo na produção de mudas das pereiras e não apresentou incompatibilidade visual no viveiro, além que a garfagem foi o melhor método de enxertia, no qual o cultivar Seleta apresentou maior crescimento dos enxertos e o interenxerto Smyrna sendo que propiciou maior brotação dos enxertos de pêra e o Mendoza Inta-37 maior diâmetro
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Dubský, Martin. "Vznik a detekce elektrického oblouku v sítích nn." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-376966.
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This thesis deals with arc detection using AFDD. Here is explained the general theory of electric arc. It also describes the principle of operation of the AFDD device, a specific type of instrument from OEZ s.r.o. and describe the test procedure for this instrument according to the technical standard. In the practical part, selected tests are performed and verified the function of the AFDD device in the event of a disturbance electric arc in the circuit.
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Mara, de Almeida Ribeiro Sheyla. "Imobilização plasmodial de Physarella oblonga (Berk. & M. A. Curtis) Morgan (Myxomycetes) para produção de substâncias bioativas." Universidade Federal de Pernambuco, 2003. https://repositorio.ufpe.br/handle/123456789/1809.
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Previous issue date: 2003<br>Os mixomicetos produzem substâncias com o potencial de inibir microrganismos patógenos ao homem, como evidenciado por estudos in vitro. Estes estudos são, porém, limitados pela dificuldade em se obter material suficiente para experimentos laboratoriais. Visando contribuir para um maior conhecimento sobre o potencial biotecnológico dos mixomicetos, principalmente no que se refere à produção e identificação de substâncias bioativas, desenvolveu-se uma técnica de imobilização plasmodial, com o objetivo de produzir substâncias em quantidade que permita a realização de testes químicos e biológicos. Physarella oblonga foi selecionada para este trabalho por ser uma espécie pouco estudada do ponto de vista químico e biológico, e freqüentemente encontrada em áreas de Floresta Atlântica de Pernambuco, Brasil. Fragmentos plasmodiais, dispersos em meio de cultura líquido, foram mantidos em um biorreator, utilizando-se caulinita como matriz de enclausuramento e acetato de sódio como precursor metabólico. Eluatos plasmodiais foram coletados periodicamente e extraídos com éter/acetato de etila (65:35 v/v) e clorofórmio/acetonitrila (60:40 v/v). Os extratos orgânicos foram submetidos à leitura espectrofotométrica em 266 nm e 310 nm e à cromatografia em camada delgada, para avaliar a produção de substâncias. Testes de difusão em meio sólido foram utilizados para detectar a atividade antimicrobiana dos extratos contra bactérias Gram positivas, Gram negativas, álcool-ácido resistentes e leveduras. As substâncias bioproduzidas foram isoladas por cromatografia em sephadex LH-20 e avaliadas através de cromatografia líquida de alta eficiência e de reações de coloração com reagentes específicos, em cromatografia de camada delgada. A técnica introduzida permite que o plasmódio de P. oblonga se mantenha metabolicamente ativo quando imobilizado em caulinita, uma vezque a produção final de substâncias foi superior ao peso inicial do plasmódio imobilizado. P. oblonga tem a capacidade de produzir substâncias com atividade antimicrobiana e o processo de imobilização não altera esta capacidade; as substâncias bioproduzidas atuaram inibindo o desenvolvimento de colônias de Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa e Mycobacterium smegmatis. Notável inibição foi observada também frente às leveduras Candida albicans e Candida tropicalis. Após um ano de cultivo em câmara-úmida, o plasmódio de P. oblonga perdeu a capacidade de inibir estes mesmos microrganismos, provavelmente em conseqüência da diminuição na competição com outros organismos de seu ambiente natural. Duas frações com atividade antimicrobiana foram isoladas a partir do extrato plasmodial de P. oblonga, no qual foram detectadas substâncias pertencentes aos grupos de compostos fenólicos e esteróides
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Cowen, Dana E. "Albrecht Dürer's "Oblong Passion": The Impact of the Reformation and Netherlandish Art on the Artist's Late Drawings." Case Western Reserve University School of Graduate Studies / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=case1386159269.
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Barba-Claros, Gloria-Elena, and David-Emanuel Portal-Iberico. "Estudio de prefactibilidad para la instalación de una planta de producción de agua de membrillo (Cydonia oblonga)." Bachelor's thesis, Universidad de Lima, 2016. http://repositorio.ulima.edu.pe/handle/ulima/4474.
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El presente estudio de prefactibilidad evalúa la viabilidad comercial, técnica, económica y financiera de la instalación de una planta productora de agua de membrillo en la provincia de Lima. La demanda del proyecto para el año diez es 6.608.015 botellas de agua de membrillo, a un precio unitario de S/. 1,88. La planta estará ubicada en Lima Metropolitana, en el distrito de Santa Anita y tendrá una capacidad de 983 botellas por hora.<br>The present prefeasibility study evaluates the commercial, technical, economic and financial viability for the installation of a quince water factory in the province of Lima. The demand of the project for the tenth year is 6.608.015 bottles of quince water, with a price of S/. 1,88 per bottle. The factory will be located in Santa Anita district in Lima Metropolitana and it will have a capacity of 983 bottles per hour.<br>Trabajo de investigación
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Vandenbussche, Pierre. "Otolithes et bioindication : conséquence d’un stress environnemental sur la morphologie des sagittae de Dicentrarchus labrax et Oblada melanura." Thesis, Université Côte d'Azur (ComUE), 2017. http://www.theses.fr/2017AZUR4122/document.
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Le but de notre étude était de valider un indicateur de la qualité de l’environnement, parmi trois approches : des mesures morphologiques de juvéniles de poissons ; la quantification de l’asymétrie fluctuante de leurs otolithes ; l’analyse de la forme de leurs otolithes. Les résultats in aquaria sur Dicentrarchus labrax ont montré une absence d’effet de mono contaminations par des polluants classiques comme le phosphore ou le zinc, à des concentrations correspondant à celles in situ en zones fortement anthropisées. Des concentrations plus élevées de zinc ont toutefois induit une modification de la forme des otolithes en plus d’un effet négatif sur la taille et le poids. Par nos prélèvement in situ sur trois ans d’Oblada melanura, nous avons mis en évidence de manière reproductible que, comparativement à des sites préservés et des arrivées de petits cours d’eau, des ports de plaisance de taille moyenne ont un effet négatif sur la longueur standard des juvéniles et induisent une modification de la forme de leurs otolithes. De l’ensemble de nos résultats nous pouvons déduire que tailles et poids sont facilement mesurables mais présentent des variabilités dans leurs réponses. La mesure de l’asymétrie des otolithes de juvéniles ne semble pas adaptée à une utilisation en bioindication. Au contraire, l’analyse de formes des sagittae de juvéniles paraît adaptée pour suivre des modifications de l’environnement pour des poissons de deux familles différentes, Moronidés et Sparidés. Cette analyse semble un outil prometteur en bioindication, applicable pour les gestionnaires de l’environnement<br>The aim of our study was to validate the most suitable environmental indicator among three approaches: morphological measurements of fish juveniles; quantification of the fluctuating asymmetry of their otoliths; analysis of their otolith shape. In aquaria, results for Dicentrarchus labrax have shown that mono-contamination by classical pollutants, such as phosphorus or zinc, has no effect for concentrations corresponding to those measured in highly anthropized environments. Nevertheless, higher zinc concentrations induce otolith shape alterations in addition to their negative impact on fish size and weight. On the basis of our three-year in situ Oblada melanura samplings, we have demonstrated that, in a replicable manner, compared to preserved areas and small waterway mouths, mid-size recreational harbours negatively impact juvenile standard length and also alter otolith shape. By comparison with in aquaria results, these alterations are consistent with a synergy of disturbance sources which taken independently do not have any impact. Taking into account all our results, we deduce that size and weight are easy to measure but show response variability. Measurement of fish juvenile otoliths' fluctuating asymmetry does not seem to be suitable for use in bioindication. Conversely, fish juvenile sagittae shape analysis is well-suited to surveys of environmental modifications, for fishes from two different families, Moronidae and Sparidae. This analysis seems to be a promising tool for bioindication, with a practical application for environmental managers
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Celant, Viviane Marcela. "Escalonamento na produção de mudas de marmeleiro: armazenamento a frio de materiais propagativos, uso de acido indolbutirico e métodos de enxertia." Universidade Estadual do Oeste do Paraná, 2010. http://tede.unioeste.br:8080/tede/handle/tede/1399.
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Previous issue date: 2010-02-05<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Developed a protocol for the production of seedlings grafted on quince rootstock 'Japanese' (Chaenomeles sinensis) in winter. Thus, the present work had for objective to study the cold storage of cuttings of quince cultivars and treatment with indolbutyric acid, the viability of the budsticks storage of different cultivars of quince by cold storage, and to verify the grafting method to promote better development of the graft and also to study the viability of conservation and cryopreservation of seeds of quince Japones . To achieve this goal, three experiments had been carried through. In the firs experiment, were used hardwood cuttings of quince 'Cheldow' and 'Marmelo Pera'. Some of the cuttings were stored in cold, and other part was placed directly to take root, in the rooting bed in the nursery. The cuttings were treated with different concentrations of indolbutyric acid: 0, 1000, 2000 and 3000 mg L-1, for 10 seconds. After 75 days, we evaluated the percentage of rooted cuttings, callous, sprouting and alive, average number of leaves and shoots, length of shoots and roots, mass dries average of the aerial part and roots. In the second experiment branches of quince Japones (Chaenomeles sinensis), Smyrna , Portugal , Mendoza Inta-37 and Provence (Cydonia oblonga) had been collected in July of 2008. A part of the branches were used for grafting by the methods of budding and cleft grafting in seedlings of nine months of age of the rootstock 'Japanese' and another part was stored in cold chamber at 4 ° C for 30 and60 days. After 60 days of grafting, was measured the percentage of sprouted of the rootstock and the final 120 days of the completion of grafting the length, diameter and average dry weights of the grafts. In the third experiment, a part of the seeds of quince 'Japanese' were sown immediately (32.8% moisture) and the remain had the humidity lowered for 14,14%. Part of the seeds with 14,14% humidity was stratified for 20 days in refrigerator in Petri dishes lined with moistened cotton, another part was stored for 3, 6, 9 and 12 months within plastic tubes in the temperature of 20 ° C 5 o C and -12 o C, and the other part of the seeds were placed in cryotubes and stored in cryogenic storage for 20 days. After storage, all seeds were stratified and sown in the same way and placed in chamber B.O.D. We evaluated the germination percentage at the end of stratification and four assessments spaced seven days. It was concluded that the cuttings of cultivating `Cheldow' if propagate more easily, cold storage increases the percentage of rooting and sprouting, with higher rooting when treated with 2000 mg L-1 IBA; to cultivate although them to present difference, it is recommended that the branches are stored for up to 30 days if using the grafting method of grafting. You can store the seeds of quince for up to 9 months under room temperature (20 C) or for long periods through cryopreservation, allowing the assignment of the production of rootstocks and still supporting the storage of germplasm<br>Desenvolveu-se um protocolo de produção de mudas de marmeleiro enxertadas no porta-enxerto Japonês (Chaenomeles sinensis) no inverno. Assim, o presente trabalho teve por objetivo estudar o armazenamento a frio de estacas de cultivares de marmeleiro e o tratamento com acido indolbutirico, a viabilidade da manutenção dos ramos porta-borbulha de diferentes cultivares de marmeleiro através do armazenamento a frio, e diagnosticar o método de enxertia a promover melhor desenvolvimento do enxerto e ainda estudar a viabilidade da conservação e crioconservação de sementes do marmeleiro Japonês . Para atingir tal objetivo, foram realizados três experimentos. No primeiro experimento, foram utilizadas estacas lenhosas dos marmeleiros Cheldow e Marmelo Pera . Parte das estacas foram armazenadas em câmara fria, e outra parte foi colocada diretamente para enraizar, em leito de enraizamento, em viveiro. As estacas foram tratadas com diferentes concentrações de acido indolbutirico: 0, 1000, 2000 e 3000 mg L-1, por 10 segundos. Apos 75 dias, avaliou-se a porcentagem de estacas enraizadas, calejadas, brotadas e vivas, numero médio de folhas e brotos, comprimento médio de brotos e raízes, massa seca media da parte aérea e das raízes. No segundo experimento ramos dos marmeleiros Japonês (Chaenomeles sinensis), Smyrna , Portugal , Mendoza Inta-37 e Provence (Cydonia oblonga) foram coletados em julho de 2008. Uma parte dos ramos foram utilizados para a realização da enxertia pelos métodos de borbulhia e garfagem, em mudas de nove meses de idade do porta-enxerto Japonês e outra parte foi armazenada em câmera fria a 4oC por 30 e 60 dias. Passados 60 dias da realização da enxertia, foi mensurada a porcentagem de brotação dos enxertos e ao final de 120 dias da realização das enxertias o comprimento, diâmetro e massa seca media dos enxertos. No terceiro experimento, uma parte das sementes do marmeleiro Japonês foram semeadas imediatamente (32,8% de umidade) e o restante teve a umidade rebaixada para 14,14%. Parte das sementes com umidade de 14,14% foi estratificada por 20 dias em geladeira em placas de Petri forradas com algodão umedecido, outra parte foram armazenadas por 3, 6, 9 e 12 meses dentro de tubos plásticos, sob a temperatura de 20oC, 5oC e -12oC, e a outra parte das sementes foram colocadas em criotubos e armazenadas em crioconservação por 20 dias. Apos o armazenamento, todas as sementes foram estratificadas e semeadas nos mesmos moldes e colocadas em câmara tipo B.O.D. Avaliou-se a porcentagem de germinação ao final da estratificação e por mais quatro avaliações espaçadas de sete dias. Concluiu-se que as estacas do cultivar Cheldow se propagam mais facilmente, o armazenamento a frio aumenta a porcentagem de estacas enraizadas e brotadas, com maior enraizamento quando tratadas com 2000 mg L-1 de AIB; apesar dos cultivares apresentarem diferença, recomenda-se que os ramos sejam armazenados por ate 30 dias, se utilizando a enxertia pelo método de garfagem. E possível armazenar as sementes de marmeleiro por ate 9 meses sob a temperatura ambiente (20oC) ou por longos períodos através da crioconservação, possibilitando o escalonamento da produção dos porta-enxertos e ainda dando suporte ao armazenamento de germoplasma
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Petineli, Rafael. "Pereiras Europeias enxertadas sobre portaenxerto de marmeleiro: vigor, produção e incompatibilidade de enxertia." Universidade do Estado de Santa Catarina, 2014. http://tede.udesc.br/handle/handle/1183.
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Previous issue date: 2014-02-10<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The present work had as objective to evaluate the development of vegetation, phenology and the production of different cultivars of European pear trees grafted on rootstock than Quince Adams, as well as to establish the levels of cyanogenic glycosides prunasina and amygdalin in Quince. The experiments were conducted in the experimental area of UDESC in Lages/SC , and in partnership with EMBRAPA Grape and wine in Vacaria/RS, during the 2012/2013 vintages and 2013/2014. We used the European pear cultivars? Abate Fetel, Packham s Triumph, Rocha, Santa Maria, William s, Forelle, Max Red Bartlett, conference, Decana Du Comice and Clapp s Favourite, grafted onto the rootstock of quince Adams. For chromatographic analyses, were used the quince EMC, sydo, BA29, Adams, Japanese, Portugal, Lageado, Veranópolis and EMA, from nursery with 1 and 4 years of age. Still, in the orchard, retired material for analyzing plant grafted with 5 years of age. With the work, it was possible to observe that the cultivars Packham s Triumph, Rocha, Santa Maria and Abate Fetel, were those which presented more balance between vegetative and productive parts, being to cultivate Packham s Triumph presented greater productive efficiency. For the municipality of Vacaria/RS, the cultivars that are best developed were, Packam s Triumph, Santa maria, max Red Bartlett and forelle, presenting balanced and vegetative vigor obtained best productions. Wirh respect to plant phenology, with partial gametophytic compatibility require a greater amount of pollinating in the same area, compensating for the various periods of coincidence floral. Plants that have higher concentrations of cyanide in the vegetable tissue tend to have larger issues relating to a mismatch biochemistry of graftin<br>O presente trabalho teve como objetivos avaliar o desenvolvimento vegetativo, a fenologia e a produção de diferentes cultivares de pereiras europeias enxertadas sobre o portaenxerto de marmeleiro Adams, bem como determinar os teores dos glicosídeos cianogênicos prunasina e amigdalina em marmeleiro. Os experimentos foram conduzidos, na área experimental da UDESC em Lages/SC, e em parceria com a EMBRAPA Uva e Vinho em Vacaria/RS, durante as safras 2012/2013 e 2013/2014. Foram utilizadas as cultivares de pereiras europeias: Abate Fetel, Packham‟s Triumph, Rocha, Santa Maria, William‟s, Forelle, Max Red Bartlett, Conference, Decana Du Comice e Clapp‟s Favourite, enxertadas sobre o portaenxerto de marmeleiro Adams. Para as análises cromatográficas, foram utilizadas os marmeleiros BA29, EMC, Sydo, Adams, Japonês, Portugal, Lageado, Veranópolis e EMC, oriundos de viveiro com 1 e 4 anos de idade. Ainda, no pomar, retirou-se material para análise de plantas já enxertadas com 5 anos de idade. Com o trabalho, foi possível observar, que as cultivares Packham‟s Triumph, Rocha, Santa Maria e Abate Fetel, foram as que apresentaram maior equilíbrio entre as partes vegetativas e produtivas, sendo a cultivar Packham´s Triumph a que apresentou maior eficiência produtiva. Para o município de Vacaria/RS, as cultivares que melhor se desenvolveram foram, Packham‟s Triumph, Santa Maria, Max Red Bartlett e Forelle, apresentando vigor vegetativo equilibrado e obtiveram melhores produções. Com relação a fenologia, as cultivares que apresentam compatibilidade gametofítica parcial necessitam de uma maior quantidade de polinizadoras na mesma área, compensando os diversos períodos de coincidência floral
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Pasa, Mateus da Silveira. "Hábito de frutificação, crescimento e produção de pereiras tipo européia em função de diferentes porta-enxertos, na região Sul do Brasil." Universidade Federal de Pelotas, 2011. http://repositorio.ufpel.edu.br/handle/ri/2137.
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Previous issue date: 2011-03-10<br>The pear crop is weak in Brazil, although there are regions suitable for cultivation, as the South Region. This mainly due to lack of studies on the most adapted cultivars, the best rootstock x scion, floral abortion and knowledge about bearing habit of the main cultivars. The objective of this study was to evaluate the bearing habit, growth, production and quality of pear of the cultivars Carrick, Packham's Triumph and William's grafted on different quince rootstocks and Pyrus calleryana. In the first part of the study it was evaluated the bearing habit, in which we assessed the following variables: percentage of vegetative spurs, reproductive spurs, vegetative brindles, reproductive brindles and borses and total number of flower buds. In this first part we obtained the following results: the bearing habit of cultivars (cvs) Carrick, Packham's and William's is influenced by different rootstocks; in all cultivars tested, regardless of the rootstock, in general, there was an inverse relationship between the percentage of vegetative spurs and reproductive spurs; the most significant influence of the rootstock is about reproductive spurs formation of the cultivars evaluated; cultural management in the orchards of cvs. Carrick, Packham's and William's, especially on the pruning operation should be oriented according the rootstock used. In the second part of the study it was evaluated production, growth and quality of fruit through the following variables: plant production (kg plant-1), productive efficiency (kg.m-3), total soluble solids (TSS), expressed in ºbrix, firmness (PF), expressed in kilograms; latter two variables were performed using non-destructive analysis trough NIR-Case (SACM); fruit mass (kg); fruit diameter (mm); trunk diameter (mm) and branch length
(cm). According with the results obtained, the cvs. Carrick, Packham's and William's are more efficient when grafted onto the rootstock of quince 'Portugal' and 'MC'; 'Adam's', 'D'Angers' and 'Smyrna'; and 'Champion', respectively; the productive efficiency of cvs. Carrick, Packham's and William's, in general, is inversely proportional to the vigor induced by rootstocks; fruits of cvs. Carrick, Packham's and William's tend to accumulate a larger amount of soluble solids (TSS) when grafted on less vigorous rootstocks. .<br>A cultura da pereira ainda é pouco expressiva no Brasil, embora existam regiões aptas para seu cultivo, como a Região Sul. Isso é devido principalmente à carência de estudos sobre as cultivares mais adaptadas, as melhores combinações copa x porta-enxerto, abortamento floral e o conhecimento do hábito de frutificação das principais cultivares. Objetivou-se com esse trabalho avaliar o hábito de frutificação, crescimento, produção e qualidade de peras das cultivares Carrick, Packham s Triumph e William s, enxertadas sobre diferentes porta-enxertos de marmeleiro e Pyrus calleryana. Na primeira parte do trabalho avaliou-se o hábito de frutificação, em que foram avaliadas: percentagem de dardos, lamburdas, brindilas vegetativas, brindilas floríferas e de bolsas e número total de gemas floríferas. Dessa primeira parte foram obtidos os seguintes resultados: O hábito de frutificação das cultivares Carrick, Packham s e William s é influenciado pelos diferentes porta-enxertos; em todas as cultivares avaliadas, independente do porta-enxerto, em geral, houve uma relação inversa entre a percentagem de dardos e de lamburdas; a influência mais significativa do porta-enxerto é sobre a formação de lamburdas das cultivares avaliadas; o manejo cultural nos pomares das cvs. Carrick, Packham s e William s, principalmente por ocasião da poda, deve ser orientado em função do porta-enxerto utilizado. Na segunda parte do trabalho foram avaliados a produção, crescimento e qualidade de frutas, através das seguintes variáveis: produção por planta (Kg planta-
1); eficiência produtiva (Kg.m-3); sólidos solúveis totais (SST), expresso em o brix; firmeza de polpa (FP), expressa em kg; Estas duas últimas variáveis foram
realizadas através de análise não-destrutiva, com o equipamento NIR-Case (SACMI); massa de frutas (Kg); diâmetro da fruta (mm); diâmetro de tronco (mm) e comprimento de ramos (cm). De acordo com os resultados obtidos, as cvs. Carrick, Packham s e William s são mais eficientes quando enxertadas sobre os porta-
enxertos de marmeleiro Portugal e MC ; Adam s , D Angers e Smyrna ; e Champion , respectivamente; a eficiência produtiva das cvs. Carrick, Packham s e William s, em geral, é inversamente proporcional ao vigor induzido pelos porta-
enxertos avaliados; frutas das cvs. Carrick, Packham s e William s tendem a acumular uma maior quantidade de sólidos solúveis totais (SST) quando enxertadas sobre porta-enxertos menos vigorosos.
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Hernández, Ruíz Karla Verónica. "Identificación de Listeria monocytogenes, en médula oblonga y carne procesada ovina, con prueba rápida InSite Listeria® y técnicas de identificación bacteriana." Tesis de Licenciatura, Universidad Autónoma del Estado de México, 2018. http://hdl.handle.net/20.500.11799/94359.
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Listeria monocytogenes es un patógeno de importancia en la transmisión alimentaria, sin
embargo se busca un método de rápido diagnóstico, pues los métodos convencionales
tardan alrededor de 5 días para confirmar o descartar su presencia; la prueba InSite
Listeria® ofrece un pronto diagnóstico, por lo cual, entre los objetivos del presente trabajo
están: comprobar la sensibilidad de la prueba rápida InSite Listeria®, a través de técnicas
de aislamiento e identificación bacteriológicas, y determinar si el uso de la misma como
técnica diagnóstica, es rápida, oportuna y eficiente.
La barbacoa normalmente se expende en puestos “callejeros”, lo cual, junto con las
practicas de manejo, favorecen la presencia de diversos microorganismos contaminantes
como Listeria monocytogenes. Debido a lo anterior, el presente trabajo tuvo como objetivo
general identificar la presencia de Listeria monocytogenes, en médula oblonga y barbacoa
ovina por medio de la prueba rápida InSite Listeria® y pruebas bacteriológicas
convencionales. Para ello se recolectaron 200 muestras en dos etapas; en la primera etapa
se realizó el muestreo de 100 expendios de barbacoa de la ciudad de Toluca, donde se
muestreó barbacoa, realizando encuestas para analizar los factores predisponentes a la
contaminación del producto final con la ayuda de estudios de análisis de riesgo de las
condiciones del personal de expendio, condiciones del equipo y local de expendio, y
condiciones de la ropa de trabajo; en la segunda etapa, se obtuvieron 100 muestras del
rastro municipal de Capulhuac, donde 87 muestras de médula oblonga obtenidas de la
cabeza de ovinos fueron adecuadas para el estudio según los criterios de aceptación de
muestras, y el diagnóstico con el hisopo InSite Listeria®; para esta etapa se realizaron
tablas de contingencia para determinar la relación entre los resultados positivos de la
prueba rápida, con las condiciones sexo, edad y peso de los ovinos muestreados. A partir de
los resultados de ambas etapas se analizaron los factores de riesgo y la sensibilidad y
especificidad de InSite Listeria
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Ribeiro, Mirian de Farias. "Multiplicação e regeneração in vitro de marmeleiro." Universidade Federal de Pelotas, 2013. http://repositorio.ufpel.edu.br/handle/ri/1993.
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Previous issue date: 2013-03-28<br>Pear orchards with high density planting were possible due to the use of rootstock quince (Cydonia oblonga Mill.), thus obtaining small plants and rapid fruiting, and provide uniformity to these orchards. Techniques that may improve the ability to
propagation this rootstock are of great interest. The aim of this study was to adjust protocols for in vitro multiplication and regeneration of quince cultivars MC and Adams. The results of this word are presented in chapter. Material used in the experiments was obtained from in vitro propagation in culture medium consisting of MS salts and vitamins supplemented with myo-inositol (100 mg L-1), 6 -
benzylaminopurine (BA) (0.3 mg L-1), sucrose (30 g L-1) and agar (8 g L-1). Chapter 1 we used MS medium added agar (8 g L-1) on solidified medium and vermiculite (3 g flask-1) in the liquid medium and the flasks were sealed with aluminum foil, PVC film and polypropylene cap. In Chapter 2 how carbon source in culture medium was added sucrose, fructose or sorbitol at concentrations 0, 15, 30, 45 and 60 g L-1. For in
vitro regeneration the Chapter 3 was divided in two experiments. In experiment 1 the culture medium consisted of salts and vitamins MS and SH supplemented with myoinositol
(100 mg L-1), sucrose (30 g L-1), agar (8 g L-1), NAA (2 mM) and TDZ at concentrations 0, 1.5, 3, 4.5 and 6 μM. In experiment 2 the culture medium consisted of SH salts and vitamins supplemented with myo-inositol (100 mg L-1), sucrose (30 g L-1), agar (8 g L-1), TDZ (0 , 1.5, 3, 4.5 and 6 μM) combined with NAA or IBA at concentrations of 0, 1.0, 1.5 and 2 μM. All experiments were evaluated after 60 days.
Considering the results presented in Chapter 1 is possible to conclude that the use of culture medium solidified with agar and the flasks sealed with aluminum foil or polypropylene cap favored the in vitro multiplication of quince 'MC' and 'Adams'. In the second chapter it was found that the sucrose concentration of 45 g L-1 to cultivar MC and 30 g L-1 to cultivar Adams are the best concentrations and carbon source for in vitro multiplication quince. In the Chapter 3 first verified in experiment 1 that the in vitro regeneration of adventitious shoots quince cultivars MC and Adams was favored
by the use of SH culture medium and addition of 4.5 μM TDZ to cultivar MC and 6 μM TDZ for cultivar Adams. And in experiment 2 it was concluded that multiple shoots were formed from the combination of 4.5 μM TDZ and 2 μM NAA for cultivar MC and 6 μM TDZ and 2 μM NAA to cultivar Adams.<br>Pomares de pereira com plantio em alta densidade foram possíveis devido a utilização de portaenxerto de marmeleiro (Cydonia oblonga Mill.), obtendo-se assim plantas de pequeno porte e rápida frutificação, além de proporcionar uniformidade a esses pomares. Técnicas que venham melhorar a capacidade de propagação deste portaenxerto são de grande interesse. O objetivo desse trabalho foi ajustar protocolos de multiplicação e regeneração in vitro de marmeleiro cultivares MC e Adams. Os resultados do trabalho estão apresentados na forma de capítulos. O material vegetal utilizado nos experimentos foi obtido a partir da multiplicação in vitro em meio de cultura básico composto dos sais e vitaminas MS, suplementados com
mio-inositol (100 mg L-1), 6- benzilaminopurina (BAP) (0,3 mg L-1), sacarose (30 g L- 1) e ágar (8 g L-1). No capítulo 1, utilizou-se meio básico acrescentado de ágar (8 g L- 1) no meio solidificado e vermiculita (3 g frasco-1) no meio líquido e os frascos foram vedados com papel alumínio, filme PVC e tampa de polipropileno. No capítulo 2, como fonte de carbono no meio de cultura foi utilizado sacarose, frutose ou sorbitol
nas concentrações de 0, 15, 30, 45 e 60 g L-1. Para regeneração in vitro o capítulo 3 foi dividido em dois experimentos. No experimento 1 os meios de cultura
constituíram-se dos sais e vitaminas MS e SH, suplementados com mio-inositol (100 mg L-1), sacarose (30 g L-1), ágar (8 g L-1), ANA (2 μM) e TDZ nas concentrações de 0, 1,5, 3, 4,5 e 6 μM. No experimento 2 o meio de cultura constituiu-se dos sais e vitaminas SH, suplementado com mio-inositol (100 mg L-1), sacarose (30 g L-1), ágar (8 g L-1), TDZ (0, 1,5, 3, 4,5 e 6 μM) combinado com ANA ou AIB nas concentrações
de 0; 1,0; 1,5 e 2 μM. Todos os experimentos foram avaliados após 60 dias. Diante dos resultados apresentados no capítulo 1 é possível concluir que a utilização de meio de cultura solidificado com ágar e os frascos vedados com papel alumínio ou tampa de polipropileno favorecem a multiplicação in vitro de marmeleiro 'MC' e 'Adams'. No capítulo 2 constatou-se que a sacarose na concentração de 45 g L-1 para cultivar MC e 30 g L-1 para cultivar Adams são as melhores concentrações e
fonte de carbono para multiplicação in vitro dos portaenxertos de marmeleiro testados. No capítulo 3, primeiro verificou-se no experimento 1 que a regeneração in vitro de brotos adventícios de marmeleiro das cultivares MC e Adams foi favorecida pelo uso do meio de cultura SH e pela adição de 4,5 μM de TDZ para cultivar MC e 6 μM de TDZ para a cultivar Adams. No experimento 2 concluiu-se que houve maior
taxa de regeneração a partir da combinação de 4,5 μM de TDZ e 2 μM de ANA para cultivar MC e 6 μM de TDZ e 2 μM de ANA para cultivar Adams.
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Silva, Branca Maria Cardoso Monteiro da. "Marmelo (Cydonia oblonga Miller) e marmelada : Perfil em compostos fenólicos, ácidos orgânicos e aminoácidos livres e avaliação do potencial antioxidante." Tese, Universidade do Porto. Reitoria, 2005. http://hdl.handle.net/10216/10356.
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Esumi, Tomoya. "Studies on floral differentiation and flowering-related gene expression in Japanese pear (Pyrus pyrifolia Nakai) and quince (Cydonia oblonga Mill.)." Kyoto University, 2007. http://hdl.handle.net/2433/136571.
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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第13448号<br>農博第1659号<br>新制||農||949(附属図書館)<br>学位論文||H19||N4304(農学部図書室)<br>UT51-2007-S479<br>京都大学大学院農学研究科農学専攻<br>(主査)教授 米森 敬三, 教授 矢澤 進, 教授 谷坂 隆俊<br>学位規則第4条第1項該当
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Silva, Branca Maria Cardoso Monteiro da. "Marmelo (Cydonia oblonga Miller) e marmelada : Perfil em compostos fenólicos, ácidos orgânicos e aminoácidos livres e avaliação do potencial antioxidante." Doctoral thesis, Universidade do Porto. Reitoria, 2005. http://hdl.handle.net/10216/10356.
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Souza, David Silva de. "Características produtivas e vegetativas de pereira europeia." Universidade do Estado de Santa Catarina, 2016. http://tede.udesc.br/handle/handle/2399.
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Previous issue date: 2016-07-13<br>Capes<br>Brazil is a country extremely dependent on imported pear (Pyrus spp.), due to low fruit production. There is climatic potential for growing the pear tree in the south region of the country, which reflects in the necessity for studies on the agronomic performance of different cultivars of European pear trees on different soil and climatic conditions in the south of the country. This study aimed to evaluate the vegetative and productive aspects of different cultivars of European pear cup on the rootstock quince 'Adams' (Cydonia oblonga Mill.) in the mountainous plateau - SC. The experiment was conducted in Centro de Ciências Agroveterinárias - UDESC, to 937.73 m above sea level, in the city of Lages - SC. The design used in the experiment was randomized block containing three blocks and five plants per plot. Were evaluated the vegetative activity through the trunk diameter, canopy volume, average rate of buds per branch centimeter and growth rate of branches. The production aspects were measured by the mass and number of fruits, phenology, fruit set, fruit growth rate, in addition to the physicochemical characteristics of the fruit. Characterization profiles of the root through the use of SIARCS® computer program was performed, processing and analysis of trenches images,
characterizing the root distribution. According to the results, there was no difference to the trunk diameter between cultivars. It was observed in cultivars Rocha and Packham's Triumph the highest cumulative productivity and higher average productive efficiency. The behavior of fruits growth rate and growth rate of branches in the two seasons evaluated was linear. According to phenological data, cultivars Abate Fetel and Rocha present early flowering time, within at least two weeks in relation to the other cultivars. The Packham's Triumph and Santa Maria cultivars has its flowering period coincides with a range of up to a week between their phenological stages. The cultivar William's has its later flowering period up to at least two weeks in relation to others. For root characterization, when analyzing the total root area and root length, the combination Abate Fetel / Adams has greater exploration of soil than combinations Packham's Triumph / Adams and William's / Adams, this combinations implemented in 2008, while there is no significant difference between the combinations evaluated in 2009. The higher density of roots predominates in depth 0-30 centimeters. The combination Abate Fetel / Adams presents a number of root length per profundity greater than combinations Packham's Triumph / Adams, Santa Maria / Adams and William's / Adams. The combination Clapp's Favourite / Adams presents a number of root length per profundity greater than the combination Max Red Bartlett / Adams<br>O Brasil é um país extremamente dependente da importação de pera (Pyrus spp.) devido à baixa produção da fruta. Existe potencial climático para o cultivo da pereira na região sul do país, o que reflete na necessidade de estudos sobre o desempenho agronômico de diferentes cultivares de pereiras europeias sobre diferentes condições edafoclimáticas na região sul do país. O presente estudo teve como objetivo avaliar os aspectos vegetativos e produtivos de diferentes cultivares copa de pereiras europeias sobre o porta-enxerto de marmeleiro „Adams‟ (Cydonia oblonga Mill.) no planalto serrano - SC. O experimento foi realizado no Centro de Ciências Agroveterinárias – UDESC, a 937,73 m de altitude, no município de Lages - SC. O delineamento utilizado no experimento foi blocos ao acaso, contendo três blocos e cinco plantas por parcela. Avaliou-se a atividade vegetativa, através do diâmetro de tronco, volume de copa, índice médio de gemas por centímetro de ramo, taxa de crescimento de ramos. Os aspectos produtivos foram mensurados através da massa e número de frutos, fenologia, frutificação efetiva, taxa de crescimento de frutos, além das características físico-químicas dos frutos. Foi realizada a caracterização dos perfis radiculares através
do uso de programa computacional SIARCS®, pelo processamento e análise de imagens de trincheiras, caracterizando a distribuição de raízes. De acordo com os resultados obtidos, não se observou diferença para o diâmetro de tronco entre as cultivares avaliadas. Foi observado nas cultivares Rocha e Packham‟s Triumph a maior produtividade acumulada e a maior eficiência produtiva média. O comportamento de crescimento de frutos e ramos nas duas safras avaliadas foi linear. De acordo com os dados fenológicos, as cultivares Abate Fetel e Rocha apresentam sua época de florescimento mais precoce, em até no mínimo duas semanas em relação as demais cultivares. As cultivares Packham‟s Triumph e Santa Maria tem seu período de florescimento coincidente, com intervalo de até uma semana entre seus estádios fenológicos. A cultivar William‟s tem seu período de florescimento mais tardio em até no mínimo duas semanas em relação às demais. Para a caracterização radicular, Quando analisado o valor total de área de raiz e comprimento de raiz, a combinação Abate Fetel/Adams tem maior exploração do solo do que as combinações Packham‟s Triumph/Adams e William‟s/Adams, para as combinações implantadas em 2008, enquanto não há diferença significativa entre as combinações avaliadas em 2009. A maior densidade das raízes predomina na profundidade de 0 a 30 centímetros. A combinação Abate Fetel/Adams apresenta um número de comprimento de raiz por faixa de profundida maior do que as combinações Packham‟s Triumph/Adams, Santa Maria/Adams e William‟s/Adams. A combinação Clapp‟s Favourite/Adams apresenta um número de comprimento de raiz por profundidade maior do que a combinação Max Red Barlett/Adams
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Machado, Bruno Dalazen. "Aspectos vegetativos e produtivos de cultivares copa de pereira europeia com combinações de porta enxertos." Universidade do Estado de Santa Catarina, 2011. http://tede.udesc.br/handle/handle/1136.
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Previous issue date: 2011-07-18<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>This study aimed to evaluate the vegetative and productive aspects os European pear cultivars, grafted on three rootstocks of quince, as well as the behavior of different combinations in the environmental conditions of the regions under study. The experiments were conducted in the experimental areas of Agrícola Fraiburgo S/A located in the city of urupema, SC (altitude 1425 m) and Fischer fraiburgo, located in the city of Fraiburgo, SC (altitude 1048 m). The experiment was evaluated in 2008/09 seasons. The cultivars evaluated were Packham s Triumph, santa Maria, Conference, Rocha, Decana du comice, Abbè Fetel, Clapp s Favourite and William s and quince rootstocks EMA, EMC, and Adams. Each scion-rootstock combination were planted 4 m between-row spacing and 0,3 m, 0,5 m, and 1m within-row. To evaluate plant vigour was measure plant height (m), canopy volume (m3); diameter of the trunk diameter of scion and rootstock of the trunk of cv. Scion (mm) Diameter of the trunk of rootstock (mm), difference between the trunk diameter of scion and rootstock (mm), index of fertility (buds cm-1). Total weight of pruned branches (kg), difference between the fresh weight and dry weight of pruned branches (kg), leaf area (cm2) and chlorophyll content (SPAD unit). To evaluate the productive aspects, measuring the number of fruits per plant, estimated productivity (kg ha -1), productive efficiency (kg m-3). Production per plant (kg plant-1), Profitability (R$) chemical and physical characteristics of the fruit, as fruit diameter (mm), firmness (kg cm-2), soluble solids (˚Brix) and titratable acidity (meq L-1). The combination Abbe Fetel/Adams willing to 1 and 0,3 m between plants and Packham s Triumph on EMA to 0,5 m, provide greater vigour. The cv. Clapp s Favourite grafted on quince EMA prints reduced vigour. The cv. Clapp s Favourite grafted on quince EMA, showed reduced vigour. Plants with greater trunk diameter, canopy had higher growth and greater vigour. The cvs. Conference and William s when grafted to quince EMC showed morphological signs of incompatibility. With respect to the productive aspects, combinations Packham1s Triumph/Addams to 1 m spacing, Rocha/EMC to 0,5 m Santa Maria/Addams to 0,3 m, were more efficient and profitable production, with a estimated yield (6,8 t ha-1), (5,9 t ha-1) and (19,7 t ha-1) respectively. The fruits of larger diameter ghadlower firmness<br>O presente trabalho teve como objetivo, avaliar os aspectos vegetativos e produtivos de cultivares copa de pereiras europeias, enxertadas sobre três porta enxertos de marmeleiro, assim como o comportamento das diferentes combinações nas condições edafoclimáticas das regiões em estudo. Os experimentos foram conduzidos nas áreas experimentais das empresas Agrícola Fraiburgo S/A, localizada no município de Urupema, SC (altitude 1425 m) e Fischer S.A. Agroindústria, localizada no município de Fraiburgo, SC (altitude 1048 m). As plantas encontram-se na segunda folha e o sistema de condução utilizado foi o líder central. O experimento foi avaliado nas safras 2008/09, 2009/10 e 2010/11. Foram utilizadas as cultivares Packham‟s Triumph, Santa Maria, Conference, Rocha, Decana du Comice, Abbè Fetel, Clapp‟s Favourite e William‟s e os porta enxertos de marmeleiro EMA, EMC e Adams. Os espaçamentos de plantio utilizados foram de 4 m entre filas e 0,33 m, 0,5 m e 1 m entre plantas. Para avaliar o vigor foi mensurado: incremento de altura de plantas (m), incremento de volume de copa (m3), incremento de diâmetro do tronco da cv. copa (mm), incremento de diâmetro do tronco do porta enxerto, diferença de diâmetro entre a cultivar copa e o porta enxerto (mm), índice de fertilidade (no de gemas cm-1), peso de poda de inverno (Kg), diferença entre a massa fresca e a massa seca dos ramos podados (Kg), área foliar folha-1 (cm2) e teor de clorofila (unidades SPAD). Para avaliar os aspectos produtivos, mensurou-se o o número de frutos por planta (n0 frutos pl-1), produtividade estimada (Kg ha -1), rentabilidade (R$), eficiência produtiva (Kg m-3), produção por planta (Kg planta-1), diâmetro do fruto (mm), firmeza de polpa (Kg cm-2), sólidos solúveis (oBrix) e acidez titulável (meq L-1). A combinação Abbè Fetel/Adams disposta a 1 e 0,3 m entre plantas e Packham‟s Triumph sobre EMA a 0,5 m, propiciam alto vigor às plantas. A cv. Clapp‟s Favourite enxertada sobre marmeleiro EMA imprime reduzido vigor. Maiores sinais de incompatibilidade morfológica são observados nas cvs. Conference e William‟s quando enxertadas com o marmeleiro EMC. Com relação aos aspectos produtivos, as combinações Packham‟s Triumph/Adams no espaçamento de 1 m, Rocha/EMC a 0,5 m e Santa Maria/Adams a 0,3 m, são mais eficientes em termos produtivos e rentáveis, com produtividade estimada de (6,8 t ha-1), (5,9 t ha-1) e (19,7 t ha-1) respectivamente. Os frutos de maior diâmetro obtiveram menor firmeza de polpa
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Kovářová, Veronika. "Variantní řešení silnice I/57 v úseku Semetín-Bystřička." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226452.
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The subject of my thesis is a variant I/57 in the section Semetín-Bystřička. The proposed route of communication, was part of an existing communications maintained for its full utilization. Were drawn four proposed variants of the solution, 3 variants are trying their best to use existing communication Jablůnka the village, one suggested option B that leads outside the existing road.
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Řezníček, Josef. "Přednádražní prostor a dopravní terminál města Havířova." Master's thesis, Vysoké učení technické v Brně. Fakulta architektury, 2013. http://www.nusl.cz/ntk/nusl-216008.
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The main task of this thesis was to deal with the specifics of the location so that the newly proposed structure had the potential for sustainable development of all its features. In future space transport terminal station does not arise only an end in itself, but mainly there is created an interaction point, which results in a value and attractiveness of the surrounding land. Ultimately, this process has lead to a zcelení city, to enhance its attractiveness and the external and internal view of the city itself.
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Kadrmanová, Lucie. "Lávka pro pěší podporovaná ocelovým obloukem." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226963.
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The aim of this master’s thesis is to design a footbridge across a river. The main objective is design and analysis of a footbridge supported by a steel arch. Stress ribbon is suspended on steel arch using hangers. The analysis of the structure has been carried out using ANSYS 12.0 and Nemetschek SCIA 2011.1 software, design checks using EXCEL in accordance with Eurocodes. Time dependent analysis was considered.
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Veríssimo, Valtair. "Porta-enxertos para pereira (Pyrus sp.): implicações sobre a dormência, biologia floral e conteúdo de carboidratos." Universidade Federal de Pelotas, 2008. http://repositorio.ufpel.edu.br/handle/ri/1170.
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Previous issue date: 2008-08-18<br>Floral bud abortion has been the main limiting factor to the expansion of the pear crop
in Brazil. That floral bud abortion has been considered as a complex problem that may
be affected by physiological, sanitary, genetic and climatic factors. The rootstock that is
the main subject of this study could also be an influencing factor in pear floral abortion,
since until the year 2000, only the vigorous rootstocks Pyrus calleryana and Pyrus
betulaefolia were used in Brazil. After that year, the pear growers of Santa Catarina and
Rio Grande do Sul states started using dwarfing quince rootstocks such as Adams and
EMC and the results has been satisfactory. In general these quince rootstocks are
more sensitive to water stress during drought periods, since they develop a relatively
small root system. However, the influence of these rootstocks on the physiology of
dormancy, carbohydrate metabolism and floral biology are not known. With the
objective of studying such unknown aspects, five experiments were carried out from
2005 to 2007 growth seasons. Part of these experiments was conduced under field
conditions in a commercial orchard in Vacaria, RS, whereas other experiment activities
were developed at Embrapa Clima Temperado research center in Pelotas, RS. All
were composed of: a general literature review on the pear bud abortion subject, and plus
five scientific articles, each one corresponding to one of the five above referred
experiments. The first article contain the biological method to determine the dormancy
level, on the pear cultivars Abbe Fetel and Packham s Triumph grafted on the quince
rootstock EMC or Adams. The second article brings the results on carbohydrate levels
in tissues of pear trees. The third article brings the results on floral biology of the above
referred two cultivars on the two above referred quince rootstocks. The fourth article
reports the results on the chilling requirement of potted trees of the pear rootstocks
quinces EMC, EMA and Adams and of the pear rootstocks Pyrus calleryana and Pyrus
betulaefolia, all them grown under controlled conditions. The fifth article reports the
effects of chilling on potted trees of the pear cultivars Kieffer and Packham s Triumph
grafted on the rootstocks quinces Adams, EMC or EMA, or on Pyrus betulaefolia,
under controlled conditions. It were concluded that: the sugar transport and the floral
biology were affected by rootstocks but not the dormancy development; the plants of
the pear rootstocks quinces EMA, EMC and Adams have higher chilling requirements
than the Pyrus calleryana and Pyrus betulaefolia rootstocks; the rootstock used changes
the vegetative budbreak percentage of canopy cultivar; and that the higher chilling hours
accumulated increased budbreak percentage and reduced floral bud abortion only until
the chilling requirement is attained but floral bud abortion is increased after that
condition.<br>O abortamento floral em pereira é o principal problema que limita o desenvolvimento
da pereira no Brasil, caracterizado por um complexo de fatores fisiológicos,
fitossanitários, genético e ambiental. O porta-enxerto, objeto central deste trabalho,
pode ser um fator que tem contribuído para aumentar tal problema, pois a cultura da
pereira se baseou, ao longo das últimas três décadas, no uso dos porta-enxertos Pyrus
calleryana e P. betulaefolia. A partir de 2000 os produtores do RS e SC passaram a
utilizar os marmeleiros, principalmente o Adams e EMC , obtendo resultados
satisfatórios. Em geral esses porta-enxertos são mais sensíveis ao estresse hídrico, por
apresentarem sistema radicular pouco desenvolvido. Entretanto se desconhece a
influência dos mesmos na fisiologia da dormência, na mobilização de carboidratos
durante o inverno e na biologia floral. Para atingir tais objetivos foram conduzidos
cinco experimentos entre 2005 e 2007, sendo parte deles conduzidos em pomar
comercial, na empresa Frutirol, em Vacaria-RS, e em condições controladas, na
Embrapa Clima Temperados, em Pelotas-RS. A tese possui seis capítulos, sendo o
primeiro uma caracterização e revisão bibliográfica geral do assunto e os demais cinco
artigos científicos. O primeiro artigo teve como objetivo avaliar a dinâmica da
dormência, através do uso do método biológico, de duas cultivares de pereira a Abate
Fetel e a Packham´s Triumph enxertadas em marmeleiros EMC e Adams . O
segundo visou determinar a concentração de carboidratos solúveis e amido. O terceiro
teve por objetivo o estudo da biologia floral. O quarto artigo, conduzido em condições
controladas, com plantas em vasos, tratou da determinação da exigência em frio dos
porta-enxertos de marmeleiros EMC , EMA e Adams , além dos porta-enxertos do
gênero Pyrus (Pyrus calleryana e P. betulaefolia). O quinto artigo, também em
condições controladas, visou determinar o efeito do frio em plantas conduzidas em vaso
nas cvs. Kieffer e Packham´s Triumph, enxertadas em Adams , EMC , EMA e
Pyrus betulaefolia . Conclui-se que a mobilização de açúcares e amido e a biologia
floral são influenciadas pelo tipo de porta-enxerto, mas não alterou a dinâmica da
dormência. Nos experimentos conduzidos com plantas em vaso, foi possível identificar
que os marmeleiros Adams , EMA e EMC possuem requerimento em frio maior do
que P.calleryana e P. betulaefolia. O porta-enxerto utilizado altera a percentagem de
brotação da cultivar copa, devido a redução do requerimento em frio ou calor. Por fim,
identificou-se que o maior acúmulo de frio aumentou a brotação e reduziu a incidência
de abortamento de gemas florais, mas somente até suprir o requerimento das plantas;
quando em excesso foi prejudicial.
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SILVA, Ilda Mariclei de Castro da. "Multiplicação e regeneração in vitro de marmeleiro, cultivares Adams e MC." Universidade Federal de Pelotas, 2010. http://repositorio.ufpel.edu.br/handle/ri/2041.
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Previous issue date: 2010-03-25<br>Quinces (Cydonia oblonga Mill.) are good alternative for pear tree rootstock
diversification, due the interest to control the plants development to obtain fast
frutification, plants uniformity and higher fruit quality. Their propagation through the
tissue culture allows the plant production in a large scale, with high sanitary in a short
period of time. Another application of this technique is the regeneration or in vitro
morphogenesis that consists in the organs induction by somatic embryogenesis or
organogenesis, which is a pre-requirement for genetic transformation. The current
work aimed at optimizing the multiplication and in vitro regeneration of Cydonia
oblonga Mill. rootstocks, cultivars Adams and MC. For the multiplication experiments
were used apicals shoots with excised tip (1,5cm), and inoculated in MS½ and MS¾
or MS medium modified (¾ of the normal concentration of NH4NO3 and KNO3 and
EDTA-Ferric), containing different BAP concentrations or interaction among BAP and
AG3 concentrations. The explants were maintained in growth chamber with 16h
photoperiod, 48 μmol m-2 s-1 density photon flux and 25±2ºC temperature, for 40
days. The variables analyzed were shoots number per explants, shoots length, node
number per shoot and percentage of hyperhydric shoots. In the regeneration
experiments it was used as initial explants entire leaves or third basal leaves, young
or adult leaves, with or without petiole, inoculated in MS medium, supplemented with
TDZ (0, 1, 2, 3 and/or 4mg dm-3) and ANA (0,1mg dm-3), maintained in darkness for
40 days. Later, they were transferred to MS medium containing 1mg dm-3 TDZ and
maintained in the light for 30 days more. After that period, the percentage of
regenerate explants, the shoots number for regenerate explant and type of
organogenesis formed was evaluated. Both cultivars present potential for in vitro
propagation, however 'Adams' is more responsive, because it was obtained 6,3
shoots per explant, with 2,8mg dm-3 BAP, while ' MC' presents larger sensibility to
this plant growth regulator and to develop the hyperhydric explants, however it
demonstrated to be more efficient to the in vitro regeneration, presenting 26% of
regenerating explants (with 1mg dm-3 TDZ). It was verified for both cultivars, the
entire explant leaves were more responsive for the regeneration than basal thirds
and that this happens mainly in the basal area of the explant, through direct and
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indirect organogenesis. Based on the multiplication and the regeneration results, it
was concluded that is possible the in vitro multiplication of these cultivars in large
scale, as well as to improve the regeneration rates for future plant breeding works for
characteristics of interest, through genetic transformation.<br>Os marmeleiros (Cydonia oblonga Mill.) são excelente alternativa de diversificação
de porta-enxertos para pereiras, devido ao interesse por plantas com porte reduzido,
rápida frutificação, uniformidade nos pomares e boa qualidade das frutas. A sua
propagação por meio da cultura de tecidos permite a produção de plantas
homogêneas, em larga escala, com alta qualidade sanitária e num curto espaço de
tempo. Outra aplicação desta técnica é a regeneração ou morfogênese in vitro, que
consiste na formação de órgãos, seja por meio de embriogênese somática ou
organogênese, sendo esta um pré-requisito para a transformação genética. O
presente trabalho teve como objetivo otimizar a multiplicação e regeneração in vitro
dos porta-enxertos de Cydonia oblonga Mill., cultivares Adams e MC. Para os
experimentos de multiplicação foram utilizadas brotações apicais com ápice
excisado (1,5cm), inoculadas em meio MS½ e MS¾ ou MS modificado (¾ da
concentração normal de NH4NO3 e KNO3 e Ferro na forma de EDTA-Férrico),
contendo diferentes concentrações de BAP ou interação entre BAP e AG3, mantidas
em câmara de crescimento com fotoperíodo de 16 horas, 48 μmol m-2 s-1 e 25±2ºC
de temperatura por 40 dias. Após, analisaram-se as variáveis: número de brotações
por explante, comprimento das brotações, número de nós por brotação e
percentagem de explantes com hiperidricidade. Nos experimentos de regeneração
utilizou-se como explante inicial folhas inteiras ou terços basais, jovens ou adultas,
com ou sem pecíolo, inoculados em meio MS, suplementados com TDZ (0, 1, 2, 3
e/ou 4mg dm-3) e ANA (0,1mg dm-3), permanecendo no escuro por 40 dias.
Posteriormente, foram transferidos para meio MS contendo 1mg dm-3 de TDZ e
mantidos na luz por mais 30 dias. Após esse período, avaliou-se a percentagem de
explantes regenerados, o número de brotações por explante regenerante e tipo de
organogênese formada. As duas cultivares estudadas apresentam potencial para a
propagação in vitro, porém Adams foi mais responsivo, pois obteve-se 6,3
brotações por explante, com 2,8mg dm-3 de BAP, enquanto MC apresenta maior
sensibilidade a altas concentrações deste regulador de crescimento e à vitrificação,
porém demonstrou ser mais eficiente durante a regeneração in vitro, apresentando
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valores aproximados de 26% de explantes regenerantes (utilizando 1,0mg dm-3 de
TDZ). Para ambas cultivares, o explante folha inteira é mais responsivo à
regeneração do que terços basais e que esta ocorre principalmente na região basal
do explante, via organogênese direta ou indireta. Baseado nos resultados obtidos
tanto na fase de multiplicação quanto na de regeneração, verifica-se que é possível
multiplicar in vitro estas cultivares em larga escala, bem como melhorar as taxas de
regeneração para futuros trabalhos de melhoramento para características de
interesse, via transformação genética.
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Glajcar, Karel. "Lávka tvořená předpjatým pásem s obloukem." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225608.
Full textAbstract:
The subject of this master’s thesis is the design of footbridge across the river. The main objective is to analyse the superstructure which is formed by a stress ribbon and arch. The arch consists of two separate plan curved concrete arches and is associated with stress ribbon in the top. The analysis of the structure has been performed using MIDAS CIVIL 2011 software. Simplified calculations by hand or by EXCEL have been also carried out. Design of the superstructure's elements, pre-stressed tendons and reinforcement has been done according to EUROCODE. In the analysis, time dependent effects have been also taken into account.
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Panáček, Vladimír. "Problematika znalecké analýzy jízdy a brzdění vozidla v obecném prostorovém oblouku při rychlostech vyšších než 50 km/h." Doctoral thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-234324.
Full textAbstract:
The present apparatus for the technical analysis of road accidents has no well-integrated information, recommendations or procedures of how to solve comprehensively the analysis of road accidents involving vehicles equipped with stabilization system of driving dynamics. The problem in the investigation of a vehicle movement in a curve is the ignorance of the contributions of vehicle dynamics intervention of the electronic stability system. Although some of the simulation software used in the analysis of road accidents makes it possible to take into account the modelled vehicle movement impacted by a stabilization system in the examined process, but the experts do not know what parameters should be entered in the numerical models of stabilization system in a computer programme. Therefore, the thesis investigates the issue of the expert analysis of vehicle riding and braking in a general spatial curve at speeds exceeding 50 kph with simultaneous examining the impact of electronic stability system chassis on vehicle driving dynamics. The thesis first deals with the solutions based on classical analytical methods, then dwells on experimental measurements in real conditions on testing grounds and, finally, addresses the use of computer simulation software in expert practice. Nevertheless, it is important to realize that no computer simulation software can be an absolutely unambiguous solver, and it is not enough to generate a computer simulation, but so obtained results should be evaluated and justified technically. Road accident analyst needs to know the impact of vehicle electronic stability control systems on vehicle movement. The thesis investigated the mutual relationship between the vehicle speed limit in a curve specified by analytical calculation and the vehicle speed in a curve experimentally detected by measuring the parameters of driving dynamics of a vehicle equipped with electronic stability system. The impact of selected electronic stability control systems of the chassis on the vehicle movement in the investigated processes in the curve was detected and quantified by driving experiments. Finally, the input values of significant quantities of computational models of the ESP simulation programs were found consistent with the results of experimental measurements in defined curves for the vehicles equipped with electronic stability systems. The results of the thesis can be used both in the expert and in the teaching activities.
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Samohejl, Matěj. "Rozšíření možností optické diagnostiky spínacího oblouku." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242055.
Full textAbstract:
This master´s thesis si focused on determinig methodology of optical diagnostics of the switching arc using the high-speed camera Photron SA-X2. The thesis contains basic rules for proper setup of the measurement system and the rules to adjust the camera exposure. The experiments were performed on the prototype of a parametric switching chambre, while the majority of source materials was derived from the requirements of another study which was aimed on the movement of the electode spots. The process of the first adjustment of the camera, a record edit options for the presentation purposes and the process of the 3D model design of the switching arc in SketchUp software was stated. Paper contains a comparsion of the spectral filter effect and neutral density filter effect on the final record as well. The part of the work outputs are the 3D model of the switching arc and the supporting record editing software. The paper results show a degree of the inaccuracies in a optical diagnostics made from only one direction caused by the lack of the information about third dimension.
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Berthou, Sylvie. "Étude des alcaloi͏̈des de "Limacia oblonga" (Miers) Hook. F. Thoms (Ménispermacées) et de "Guatteria guianensis" (Aublet) R. E. Fries (Annonacées) : essais de N-déméthylation de bisbenzylisoquinoléines." Paris 11, 1988. http://www.theses.fr/1988PA114809.
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Eliáš, Vojtěch. "Žárové nástřiky elektrickým obloukem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417133.
Full textAbstract:
This thesis deals with the issue of thermal spraying by means of an electric arc. First of all, a theoretical part is processed using a literary study dealing with corrosion and thermal spraying technology. The experimental part contains a description of the technological procedure and evaluation of four thermally sprayed samples. Zinacor 850, consisting of 85% zinc and 15% aluminum, was used as a coating. The evaluation involves measurements of thickness, adhesion and roughness as well as the macro-structural analysis of the coating. Two samples showed unusually low adhesion, and all samples also had a large fluctuation of the measured thicknesses. This was also confirmed by the macro-structural analysis, which showed that the sample with low adhesion also had high porosity. These defects may have multiple causes, but the recommendation for further practice is to reduce the spraying distance from the base material.