Dissertations / Theses on the topic 'Fazi AHP'
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Dušan, Marković. "Селекција и рангирање кључних индикатора иновационог потенцијала у контексту одрживог индустријског развоја." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=114814&source=NDLTD&language=en.
Full textOdrživi industrijski razvoj direktno je povezan sa stvaranjem povoljnih uslova za sprovođenje inovativnih aktivnosti. Glavni izazov na polju upravljanja inovacijama je izbor i rangiranje indikatora koji omogućavaju stvaranje inovacija, kako na nivou države / regije (makro nivou), tako i na nivou preduzeća (mikro nivou).Ovo istraživanje je sprovedeno za oba nivoa odvojeno. Rangiranje indikatora na makro nivou izvršeno je za pojedinačne države članice EU i za EU kao jedinstvenu regiju Za tu svrhu primenjena je metoda statističkog učenja. Na mikro nivou, urađena je studija slučaja za rangiranje indikatora inovacijskog potencijala za sektor MMSP u Srbiji, korišćenjem metode strukturiranog upitnika i metode višekriterijumske analize. Rezultati istraživanja pružaju priliku da se ukaže na značaj pojedinih indikatora u procesu stvaranja inovacije, kako na makro tako i na mikro nivou.
Sustainable industrial development is directly related to the creation of favorable conditions for the implementation of innovative activities. The main challenge in the field of innovation management is the selection and ranking of indicators that enable the creation of innovation, both at the state/region level (macro level) and at the enterprise level (micro level). This research was conducted for both levels separately. The ranking of indicators at the macro level was done for individual member states of EU, and for the EU as a unique region. For this purpose, the method of statistical learning was applied. At the micro level, a case study for ranking the indicators of innovation potential was done for the MSME sector in Serbia, using the method of a structured questionnaire and the method of multi-criteria analysis. The results of the research provide an opportunity to see the importance of individual indicators in the process of creation of innovation, both at the macro and micro levels.
Tatjana, Žikić. "Egzistencija nepokretne tačke u fazi strukturama." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2002. https://www.cris.uns.ac.rs/record.jsf?recordId=73363&source=NDLTD&language=en.
Full textIn this thesis fixed point theorems which present singlevalued and multivalued generalization of Banach contraction principlein probabilistic metric and fuzzy metric spaces are proved. Thetheorem which presents generalization of fixed point theorem forprobabilistic g-contraction / : S —* S is proved, where ( S , J7, T ) iscomplete Menger space. A notion of strong (£>n)-contraction is introduced and the theorem which presents a generalization of Sehgaland Bharucha-Raid theorem when the mapping / : S —» S is strong(6n)-contraction is proved. Caristi’s theorem, which presents one ofthe most imortant results for the fixed point theorem and nonlinearanalysis is generalized in complete Menger space (S, J-, T ), wheret-norm T is of H -type. As Menger’s spaces belong to the class ofquasi-uniformizable spaces, the fixed point theorem for three mappings in one special class of quasi-uniformizable spaces is proved.The fixed point theorem which presents a probabilistic generalization of Nadler g-contraction for three mappings is proved as wellas the generalization of Hicks’s contraction principle for three mappings. The theory of contractor, which was introduced by M. A ltman refers to solving nonlinear operator equations in Banach spaces.This thesis proves the theorems which provide the existence anduniqueness of the solutions for nonlinear operator equations withsinglevalued and multivalued operators in nonarhimedian Menger’sprobabilistic normed spaces
Mirna, Udovičić. "Algebarska analiza nekih klasa fazi uređenih struktura." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2014. https://www.cris.uns.ac.rs/record.jsf?recordId=87533&source=NDLTD&language=en.
Full textLet A be a nonempty set, and let ℒ = (L, ≤) be a lattice with 0 and 1. The mapping: µ: A → L is called a fuzzy subset of A. In this work we investigated fuzzy posets and fuzzy ordering relations. We introduced some new notions: fuzzy ordered groups, fuzzy positive cone, fuzzy negative cone, fuzzy lattice ordered group. Considering a structure of all weak fuzzy orderings contained in the crisp order ≤, we concluded that this structure represents a complete lattice. Also, an important task was to investigate the existence of a fuzzy lattice ordered subgroup of an l–ordered group which is not linearly ordered. A main result is a fuzzy lattice ordered subgroup of a given lattice ordered group G, which is constructed by the lattice of all convex l-subgroups of G.
Vera, Miler Jerković. "Primena uopštenih inverza u rešavanju fazi linearnih sistema." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=107117&source=NDLTD&language=en.
Full textThе subject of research of thesis is setting universal method for solving fuzzy linear systems using a block representation of generalized inversis of a matrix. A necessary and sufficienf condition for the existence solutions of fuzzy linear systems is given. The exact algebraic form of any solutiof fuzzy linear system is established.
Danijela, Karaklić. "Prostori sa fazi rastojanjem i primena u obradi slike." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2019. https://www.cris.uns.ac.rs/record.jsf?recordId=110710&source=NDLTD&language=en.
Full textMeasuring the image quality using a given image quality index does not necessarily reflect the practical quality of the image, that is, it is not based on the HVS (Human Visual System) model. The formation of given functions, which are used in the filtering algorithm for determining the distance between the pixels, can be done in different ways, which can be seen in works in the field of image filtering, provides a wide range of possibilities to examine the effect of fuzzy distance, for example, of the fuzzy T-metric or the fuzzy S-metric can have on the image filtering process itself. The goal is to improve image quality in relation to a vector median filter. Within the theoretical considerations of space with fuzzy distance, results from the fixed point theory have been obtained which provide the possibility of further application of these spaces in the technique.
Goran, Panić. "Razvoj namenskog sistema fazi logike za primenu u sistemima za upravljanje XML dokumentima." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2014. https://www.cris.uns.ac.rs/record.jsf?recordId=83671&source=NDLTD&language=en.
Full textIn real life, as opposed to virtual, most information comes in theform of imprecise or incomplete values. XML technology hasmade great progress in the field of storage and data transfer.This doctoral dissertation developed XML extension whichcombines indefiniteness in the values of XML andindefiniteness in the structure of XML into a single fuzzy XMLextension. Furthermore, dissertation expands XQuery syntaxwith fuzzy values and includes priorities and thresholds infuzzy XQuery extension using GPFCSP for the first time.Unlike other papers that focus on setting up theories anddefining syntax, in this dissertation, special attention is turnedto their practical use. A tool for working with XML, XSD andDTD documents and prioritized fuzzy XQuery extensionqueries has been developed. The tool has been tested onpractical examples.
Ljubo, Nedović. "Neki tipovi rastojanja i fazi mera sa primenom u obradi slika." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2017. https://www.cris.uns.ac.rs/record.jsf?recordId=104792&source=NDLTD&language=en.
Full textThis thesis studies application of fuzzy operations, especially aggregation operators, on distance functions and metrics. The contribution of the thesis is construction of new distance functions and metrics by application of aggregation operators on some basic distance functions and metrics. For some types of aggregation operators and basic distance functions and metrics, properties of distance functions and metrics constructed in this way are analyzed. For some of them, performances in application in Fuzzy c-means algorithm are analyzed.
Jelena, Kiurski-Milošević. "Model procene kvaliteta podzemne vode sa povećanim sadržajem arsena primenom fazi logike." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2015. https://www.cris.uns.ac.rs/record.jsf?recordId=94978&source=NDLTD&language=en.
Full textPhD Thesis “Model assessment for groundwater quality with elevated arseniccontent with application of fuzzy logic” was elaborated as a result of the needto explore the possibilities of application of fuzzy logic in the modernapproach of assessing the groundwater quality. Because this issue has notbeen sufficiently explored and it was not given proper emphasis and weight,the main aim of the dissertation is to develop optimal models for assessingthe groundwater quality with elevated arsenic content. Dissertation, besidestheoretical dimensions, presente and evaluate the implementation of thecreated models to the experimentaly selected locality of the city of Zrenjanin.The developed models can be transposed to the urban and rural areas withappropriate iteration.
Marija, Paunović. "Mere neodređenosti i primena u aktuarstvu." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2019. https://www.cris.uns.ac.rs/record.jsf?recordId=110708&source=NDLTD&language=en.
Full textThis thesis studies uncertainty measures, especially credibility measure, as well asthe possibility of their application in actuaries. In order to generalize credibility theory,a new fuzzy measure is proposed, called c − credibility measure. C − credibilitymeasure on X is a set function that satisfies normality, monotonicity, self-duality andmaximality. Certain properties of the c−credibility measure are proved, such as, forexample, subadditivity and semicontinuity. Furthermore, an integral based on thismeasure is defined, in analogy to the existing integrals, and its properties are proved.Then, the credibility measure in a fuzzy environment is introduced as the aggregatevalue of the possibility and necessity measures.
Marija, Milićević. "Somatske komplikacije u akutnoj fazi moždanog udara: učestalost, prediktori i uticaj na ishod bolesti." Phd thesis, Univerzitet u Novom Sadu, Medicinski fakultet u Novom Sadu, 2019. https://www.cris.uns.ac.rs/record.jsf?recordId=110703&source=NDLTD&language=en.
Full textStroke is the second cause of death worldwide and neurological disease with the highest level of disability. For a favorable outcome of stroke, the prevention and treatment of somatic complications are of great importance, while their frequency and the importance of the recovery of patients are underestimated, and the influence on the outcome of stroke is neglected. The aims of the study were: to determine the frequency of patients with somatic complications in the acute phase of stroke; to determine the frequency of each somatic complication: pneumonia, urinary infections, deep venous thrombosis, lung thromboembolism, diarrheal syndrome, and acute coronary syndrome; to identify risk factors for the emergence of each somatic complication, as well as to determine the effect of those complications on the outcome of the disease - expressed through their association with the functional status, length of hospitalization and mortality of patients. The study was conducted as a prospective and included 403 patients hospitalized due to acute stroke at the Clinic for Neurology of the Clinical Center of Vojvodina for a period of one year. Patients were divided into two groups; the first group included patients with one or more somatic complications registered (n = 162), and the second group consisted of patients without any somatic complication (n = 241). Patient evaluation included registration of socio-demographic characteristics, personal and family history, stroke characteristics, neurological and functional status at the time of admission and discharge, laboratory analysis of blood and urine at admission, type and time of emergence of each somatic complication, all relevant diagnostic methods for setting diagnosis and defining potential risk factors. Somatic complications are more common in older people (the average age of 72.9 years) in females and in patients with hemorrhagic stroke. Somatic complications were reported in 40.2% of patients, 20.3% of patients had urinary infection, 16.3% pneumonia, 4.7% myocardial infarction, 3.4% pulmonary thromboembolism, deep venous thrombosis 2.4% and diarrheal syndrome 2.9% of patients. Independent predictors of pneumonia were dysphagia, impaired state of consciousness, chronic obstructive pulmonary disease, mRS higher than 3. Predictors of urinary infections were: data on recurrent urinary tract infections, female sex, age over 70 years, mRS higher than 3 and NIHSS score higher than 16. As independent predictors of pulmonary thromboembolism, deep venous thrombosis, impaired state of consciousness and obesity were obtained, while the only independent predictor of diarrheal syndrome proved to be the age of the patient over 70 years. Predictors of acute coronary syndrome were: age over 70 years and haemorrhagic stroke. Patients with somatic complications at the end of hospital treatment had significantly worse functional status compared to patients without somatic complications. Somatic complications statistically significantly prolong hospitalization. A quarter of patients (25.9%) with somatic complications in the acute phase of the stroke had a lethal outcome. The highest percentage of deaths in patients with somatic complications was registered in patients with myocardial infarction (63.2%) and the lowest was registered in patients with urinary tract infections (18.3%).
Biljana, Carić. "Nepokretna tačka u metričkim i generalizovanim metričkim prostorima." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=106751&source=NDLTD&language=en.
Full textThe subject of research in the doctoral dissertation is the methods for the existence and construction of a fixed point for the single and multivalued mappings of a contraction type in metric and in generalized spaces(convex metric spaces, fuzzy metric spaces and fuzzy G-metric spaces).
Mirjana, Štrboja. "Nejednakosti za integrale bazirane na neaditivnim merama." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2011. https://www.cris.uns.ac.rs/record.jsf?recordId=66941&source=NDLTD&language=en.
Full textKlasi£ne integralne nejednakosti vezane za Lebegov integral uop²tene
su za integrale bazirane na neaditivnim merama. U ovoj tezi dokazana je
Bervaldova nejednakost za Sugenov integral. Data je nejednakost koju zadovoljava
univerzalni integral, £ije su posledice nejednakosti ebi²eva i Minkovskog.
Uop²tenja nejednakosti Jensena, ebi²eva, Holdera i Minkovskog
dokazane su za pseudo-integral i data je njihova primena u pseudo-verovatno-
¢i. Sli£no kao u klasi£noj teoriji mere pokazane nejednakosti za pseudointegral
su primenjene prilikom uop²tavanja klasi£nog Lp prostora
Marija, Delić. "Modeli neodređenosti u obradi digitalnih slika." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=114273&source=NDLTD&language=en.
Full textClassification and segmentation problems of digital images is a very attractivetopic and has been making impact in many different applied disciplines. In thepast few decades, the demand for models that address these issues has beengaining momentum and applications in everyday life. These models are used incomputer graphics, shape recognition, medical image analysis, traffic, documentanalysis, facial movements and expressions, etc.The research within this doctoral dissertation was motivated by the application ofdeveloped methods in classification and segmentation tasks. The conductedresearch covered two segments, which were linked by the term of indeterminacy,with the usage of the theory of fuzzy sets, which is incorporated into methodsdeveloped for application in image processing.One direction of the research was founded on the theory of fuzzy sets, t-norms,t-conorms, aggregation operators, and aggregated distance functions. Within thisframework, the research was conducted with a structured mathematicalbackground. Firstly, basic definitions, theorems and characteristics of the usedoperators were presented, followed by the theoretical concepts of t-norms and tconormsthat were extended. New types of aggregation operators and distancefunctions were defined, and finally, their contribution in the digital imagesegmentation process was explored and discussed.The second direction of the research presented in this dissertation involved moreof an engineering-type of approach to solving the problem of the classification ofdigital image textures. To that end, a class of local binary texture descriptors(LBPs) was analyzed and discussed in detail. Inspired by the results of theabove-mentioned LBP descriptors, one new sub-family of the $\alpha$-descriptors was introduced by the author. The introduced descriptor model wasbased on the conceptual principles of LBPs and basic definitions from the fuzzyset theory. Its practical usage and importance were established and reflected invery successful classification results, achieved in the application on severalpublicly available image datasets.
Miodrag, Petković. "Prilog razvoju metode za detekciju napada ometanjem usluge na Internetu." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=107396&source=NDLTD&language=en.
Full textIn this thesis a new method for DoS attack detection is proposed. This methodcombines the use of entropy of some characteristic parameters of network trafficand Takagi-Sugeno-Kang (TSK) neuro-fuzzy model. Entropy has been used becauseit enables detection of wide spectar of network anomalies caused by DoS attacks,while TSK adds new value to final detection of the start and the end of an attackincreasing ratio between true and false detections.
Zlatica, Predojević. "Fluidodinamika protivstrujnog kontaktora gas-čvrsto-punjenje." Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 1998. https://www.cris.uns.ac.rs/record.jsf?recordId=71441&source=NDLTD&language=en.
Full textApstrakt je obrađen tehnologijama za optičko prepoznavanje teksta (OCR).
Istraživanja u ovom radu imala su za cilj da daju doprinos razjašnjenju fluidodinamike sistema gas-čvrsto-punjenje i definisanju osnovnih karakteristika ovog sistema: pada pritiska i dinamičkog i statičkog sadržaja čvrste faze. Eksperimentalna merenja osnovnih fluidodinamičkih karakteristika sistema ostvarena su u zavisnosti od: uticaja brzina pokretnih faza (gasne i čvrste faze), tipa punjenja, veličine čestica čvrste faze i visine sloja punjenja. Ispitivanja su ostvarena na najčešće korišćenim komercijalnim punjenjima: Raschigovim prstenovima, Pall prstenovima, Intaloks sedlima i cilindričnim mrežicama, kao i do sada ne korišćenim punjenjima (keramičke kuglice i lomljeni kamen). Na osnovu eksperimentalnih podataka izvedene su korelacione jednačine za predviđanje pada pritiska i dinamičkog i statičkog sadržaja čvrste faze i granice između režima pre nakupljanja i nakupljanja u zavisnosti od osnovnih parametara kontaktora: brzina gasne i čvrste faze, veličina čestica čvrste faze i karakteristika punjenja. Korišćenjem dosadašnjih literaturnih saznanja o uticaju operativnih parametara i osobina punjenja, gasa i čvrste faze na fluidodinamiku kontaktora gas-čvrsto-punjenje i sospstvenih eksperimentalnih rezultata proverena je validnost predloženih korelacija. Dobijeni zadovoljavajući rezultati predloženih korelacija pružaju mogućnost za predviđanje režima rada i fluidodinamičkih karakteristika ovog tipa kontaktora koji ima široku mogućnost primene u procesima toplotne razmene, adsorpcije, prečišćavanja otpadnih gasova i hemijskim reakcijama.
Aleksandar, Blagojević. "Modeliranje efikasnosti i efektivnosti željezničkih operatera." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2016. http://www.cris.uns.ac.rs/record.jsf?recordId=101431&source=NDLTD&language=en.
Full textThe objective of this study was to develop a model for evaluating theeffectiveness and efficiency of railway undertakings, which would beaimed at increasing the competitive capabilities of the railwayundertakings. In order to achieve this on the basis of the state inliterature and practice, the criteria that affect the efficiency andeffectiveness are defined and evaluated and their selection is madewith the application of Fuzzy AHP. Models for the assessment of theefficiency of railway undertakings have been developed. In developingthe model, the principles of DEA and Fuzzy logic have been used tomodel the uncertainty in the data and to use the expertise forassessment. By testing the model on the railway undertaking in Bosniaand Herzegovina it was concluded that the model is useful as a tool forthe assessment of efficiency.
Jelena, Radonić. "Atmosferski transport i modelovanje raspodele između čvrste i gasovite faze policikličnih aromatičnih ugljovodonika." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2009. https://www.cris.uns.ac.rs/record.jsf?recordId=76417&source=NDLTD&language=en.
Full textGas-particle distribution of 16 EPA primarypolycyclic aromatic hydrocarbons in theatmosphere at the selected sampling sitesin urban, industrial and rural area of theWestern Balkan countries has beenanalyzed within the doctoral dissertation.On the basis of obtained experimentaldata, representative models of transportthrough surface atmospheric layer and gasparticlepartitioning of the semivolatileorganic compounds have been evaluated,giving the overview on mechanisms whichgovern atmospheric distribution ofpolycyclic aromatic hydrocarbons. Usingthe method of diagnostic ratio, qualitativecharacterization of emission sources ofPAHs in the atmosphere has been realized.Through correction of actual empirical andtheoretical expressions, explaining gasparticlepartitioning of PAHs,mathematical model of distribution ofpolycyclic aromatic hydrocarbons in theambient air has been developed.
Dragana, Šoronja-Simović. "Uticaj sastava masne faze margarina na fizičke osobine i kvalitet peciva od laminiranog testa." Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 2009. https://www.cris.uns.ac.rs/record.jsf?recordId=71234&source=NDLTD&language=en.
Full textThe possibility of application of low-trans margarine in the puff pastry production was investigated in this work. The base dough formula, which ensures the optimal dough handling during the laminating, has been defined in the first phase of the experimental work. It has been achieved through the analysis of the influence of two dough margarines composition (MZ1 and MZ2) and quantity (1, 3 and 5 % based on flour) in combination with emulsifier quantity (0.1, 0.3 and 0.5% based on flour) on physical properties of dough and puff pastry quality. The results of the measurements of empirical and fundamental rheological parameters of the base dough quality as well as the quality of the puff pastry, have clearly indicated that the optimal quantity of margarine MZ2 and emulsifier are 1% and 0.3%, respectively.By analyzing the impact of the fat phase composition of puff pastry margarine on pastry quality, it has been revealed that the quantity of the margarine and the relaxation time between laminating, need to be adjusted to the physicochemical characteristics of the margarine.It is possible to achieve the satisfactory quality of the puff pastry with margarine MLT1 of the best physical, and of the most optimal fatty acid composition, by adding only 35% of margarine which is at most times, the lowest possible quantity in producing the puff pastry. For the achievement of the acceptable physical and typical sensory characteristics of the pastry it is needed to add 45 % of the margarine MLT3, or 55% of margarine MLT2 and MLT4.The use of the margarines MLT1 and MLT4 which have high values of solid fat content, requires relaxationtime of 30 minutes. The best quality of the pastry with margarine MLT2 or MLT3 which is typical of lower solid fat content and lower firmness is achieved when the time of the relaxation between the laminating is 45 minutes.By the optimization of the production of the puff pastry, it has been identified that the margarines of the low content of trans fatty acids can successfully replace the margarines produced by the partial hydrogenation of the vegetable oil. It is possible to reduce the energy value of the pastry by 12%, by using the margarine of the modified content of the fat phase. Namely by reducing the content of the fat by 30% and trans fatty acids by 100%, it is possible to improve the nutritive value of the pastry.
Bojan, Jovanović. "Upravljanje performansama redova čekanja u poštanskom saobraćaju." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2015. http://www.cris.uns.ac.rs/record.jsf?recordId=95180&source=NDLTD&language=en.
Full textThe dissertation provides answers to the following issues: the problem of describing the queueing system when the queueing theory encounters limitations in its use, predicting the waiting time, the problem of modeling relations in the market of express services as a source of influence on the queues, managing the number of active channels in the queueing systems and the impact on subjective waiting time. Through application of artificial intelligence and statistical methods, a model has been developed which in real time predicts the parameters of waiting time at the units of postal network that provide service to customers.
Vladimir, Tadić. "Fazifikacija Gaborovog filtra i njena primena u detekciji registarskih tablica." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=107171&source=NDLTD&language=en.
Full textThe thesis presents a new algorithm for detection and extraction of license plates from a vehicle image using a fuzzy two-dimensional Gabor filter. The filter parameters, orientation and wavelengths are fuzzified to optimize the Gabor filter’s response and achieve a greater selectivity. It was concluded that Bell’s function and triangular membership function are the most efficient methods for fuzzification. Algorithm was evaluated on several databases and has provided satisfactory results. The components of interest were efficiently extracted, and the procedure was found to be very noise-resistant.
Vladimir, Ilić. "Application of new shape descriptors and theory of uncertainty in image processing." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2019. https://www.cris.uns.ac.rs/record.jsf?recordId=111129&source=NDLTD&language=en.
Full textДокторска дисертација се бави проучавањем квантитативних аспеката атрибутаоблика погодних за нумеричку карактеризацију, то јест дескриптора облика, као итеоријом неодређености, посебно теоријом фази скупова, и њиховом применом у обради слике. Оригинални доприноси и резултати тезе могу се природно поделити у две групе, у складу са приступом и методологијом која је коришћена за њихово добијање. Прва група доприноса односи се на увођење нових дескриптора облика (шестоугаоности и фази квадратности) као и одговарајућих мера које нумерички оцењују у ком обиму разматрани облик задовољава разматрана својства. Уведене мере су природно дефинисане, теоријски добро засноване и задовољавају већину пожељних својстава које свака добро дефинисана мера облика треба да задовољава. Поменимо неке од њих: обе мере узимају вредности из интервала (0,1] и достижу највећу могућу вредност 1 ако и само ако је облик који се посматра шестоугао, односно фази квадрат; не постоји облик не-нула површине чија је измерена шестоугаоност, односно фази квадратност једнака 0; обе уведене мере су инваријантне у односу на трансформације сличности; и дају резултате који су у складу са теоријски доказаним резултатима, као и људском перцепцијом и очекивањима. Бројни експерименти на синтетичким и реалним примерима приказани су у циљу илустровања теоријски доказаних разматрања и пружања јаснијег увида у понашање уведених мера. Њихова предност и корисност илустровани су у различитим задацима препознавања и класификације слика објеката неколико познатих и најчешће коришћених база слика. Поред тога, докторска теза садржи истраживања везана за примену теорије неодређености, у ужем смислу теорије фази скупова, у различитим задацима обраде слике и анализе облика. Разликујемо задатке који се односе на издвајање карактеристика облика ионе који се односе на побољшање перформанси различитих техника обраде ианализе слике. Што се тиче прве групе задатака, бавимо се применом теорије фази скупова у задацима дефинисања новог дескриптора фази облика, назван фази квадратност, и мерења колико је фази квадратан посматрани фази облик. У другој групи задатака бавимо се истраживањем побољшања перформанси оцене трансформације слике еуклидским растојањима у три димензије (3Д ЕДТ), као и сигнатуре непрекидног облика у две димензије засноване на растојању одцентроида облика. Ово последње се посебно огледа у постигнутој тачности ипрецизности оцене, повећаној инваријантности у односу на ротацију и транслацију објекта, као и робустности у присуству шума и неодређености које су последица несавршености уређаја или услова снимања. Последњи резултати се такође односе и на другу групу оригиналних доприноса тезе који су мотивисани чињеницом да анализа облика традиционално претпоставља да су објекти на слици претходно једнозначно и јасно издвојени из слике. Такво издвајање објеката се обично постиже у процесу јасне (то јест бинарне) сегментације оригиналне слике где се одлука о припадности тачке објекту на слици доноси на једнозначан и недвосмислени начин. Међутим, услед несавршености услова или уређаја за снимање, присуства шума и различитих врста непрецизности (на пример непостојање прецизне границе објекта или јасних граница између самих објеката, грешке у рачунању, недостатка информација, итд.), могу се појавити различити нивои несигурности и неодређености у процесу доношења одлуке у вези са припадношћу тачке слике. Ово је посебно видљиво у случају дискретизације (то јест узорковања) непрекидног домена слике кадаелемент слике, придружен одговарајућој тачки узорка домена, може битиделимично покривен са више објеката на слици. У том смислу, имамо да ова врста сегментације може потенцијално довести до погрешне одлуке о припадности тачака слике, а самим тим и неповратног губитка информација о објектима који се на слици налазе. То произлази из чињенице да сегментација слике изведена на овај начин не дозвољава да тачка слике може делимично у одређеном обиму бити члан посматраног објекта на слици, што даље води потенцијалном ризику да тачке делимично садржане у објекту пре сегментације неће бити придружене објекту након сегментације. Међутим, ако се уместо бинарне сегментације изврши сегментација слике где се одлука о припадности тачке слике објекту доноси на начин који омогућава да тачка може делимично бити члан објекта у неком обиму, тада се доношење бинарне одлуке о чланство тачке објекту на слици може избећи у овом раном кораку анализе. То даље резултира да се потенцијално велика количина информација о објектима присутним на слици може сачувати након сегментације, и користити у следећим корацима анализе. С тим у вези, од посебног интереса за нас јесте специјална врста фази сегментације слике, сегментација заснована на покривености елемената слике, која као резултат обезбеђује фази дигиталну репрезентацију слике где је вредност чланства додељена сваком елементу пропорционална његовој релативној покривености непрекидним објектом на оригиналној слици. У овој тези бавимо се истраживањем модела дигитализације покривености који пружа овакву врсту репрезентацију слике и представљамо како се могу постићи значајна побољшања у оцени 3Д ЕДТ, као и сигнатуре непрекидног облика засноване на растојању од центроида, ако су информације о покривеностидоступне у овој репрезентацији слике разматране на одговарајући начин.
Doktorska disertacija se bavi proučavanjem kvantitativnih aspekata atributaoblika pogodnih za numeričku karakterizaciju, to jest deskriptora oblika, kao iteorijom neodređenosti, posebno teorijom fazi skupova, i njihovom primenom u obradi slike. Originalni doprinosi i rezultati teze mogu se prirodno podeliti u dve grupe, u skladu sa pristupom i metodologijom koja je korišćena za njihovo dobijanje. Prva grupa doprinosa odnosi se na uvođenje novih deskriptora oblika (šestougaonosti i fazi kvadratnosti) kao i odgovarajućih mera koje numerički ocenjuju u kom obimu razmatrani oblik zadovoljava razmatrana svojstva. Uvedene mere su prirodno definisane, teorijski dobro zasnovane i zadovoljavaju većinu poželjnih svojstava koje svaka dobro definisana mera oblika treba da zadovoljava. Pomenimo neke od njih: obe mere uzimaju vrednosti iz intervala (0,1] i dostižu najveću moguću vrednost 1 ako i samo ako je oblik koji se posmatra šestougao, odnosno fazi kvadrat; ne postoji oblik ne-nula površine čija je izmerena šestougaonost, odnosno fazi kvadratnost jednaka 0; obe uvedene mere su invarijantne u odnosu na transformacije sličnosti; i daju rezultate koji su u skladu sa teorijski dokazanim rezultatima, kao i ljudskom percepcijom i očekivanjima. Brojni eksperimenti na sintetičkim i realnim primerima prikazani su u cilju ilustrovanja teorijski dokazanih razmatranja i pružanja jasnijeg uvida u ponašanje uvedenih mera. NJihova prednost i korisnost ilustrovani su u različitim zadacima prepoznavanja i klasifikacije slika objekata nekoliko poznatih i najčešće korišćenih baza slika. Pored toga, doktorska teza sadrži istraživanja vezana za primenu teorije neodređenosti, u užem smislu teorije fazi skupova, u različitim zadacima obrade slike i analize oblika. Razlikujemo zadatke koji se odnose na izdvajanje karakteristika oblika ione koji se odnose na poboljšanje performansi različitih tehnika obrade ianalize slike. Što se tiče prve grupe zadataka, bavimo se primenom teorije fazi skupova u zadacima definisanja novog deskriptora fazi oblika, nazvan fazi kvadratnost, i merenja koliko je fazi kvadratan posmatrani fazi oblik. U drugoj grupi zadataka bavimo se istraživanjem poboljšanja performansi ocene transformacije slike euklidskim rastojanjima u tri dimenzije (3D EDT), kao i signature neprekidnog oblika u dve dimenzije zasnovane na rastojanju odcentroida oblika. Ovo poslednje se posebno ogleda u postignutoj tačnosti ipreciznosti ocene, povećanoj invarijantnosti u odnosu na rotaciju i translaciju objekta, kao i robustnosti u prisustvu šuma i neodređenosti koje su posledica nesavršenosti uređaja ili uslova snimanja. Poslednji rezultati se takođe odnose i na drugu grupu originalnih doprinosa teze koji su motivisani činjenicom da analiza oblika tradicionalno pretpostavlja da su objekti na slici prethodno jednoznačno i jasno izdvojeni iz slike. Takvo izdvajanje objekata se obično postiže u procesu jasne (to jest binarne) segmentacije originalne slike gde se odluka o pripadnosti tačke objektu na slici donosi na jednoznačan i nedvosmisleni način. Međutim, usled nesavršenosti uslova ili uređaja za snimanje, prisustva šuma i različitih vrsta nepreciznosti (na primer nepostojanje precizne granice objekta ili jasnih granica između samih objekata, greške u računanju, nedostatka informacija, itd.), mogu se pojaviti različiti nivoi nesigurnosti i neodređenosti u procesu donošenja odluke u vezi sa pripadnošću tačke slike. Ovo je posebno vidljivo u slučaju diskretizacije (to jest uzorkovanja) neprekidnog domena slike kadaelement slike, pridružen odgovarajućoj tački uzorka domena, može bitidelimično pokriven sa više objekata na slici. U tom smislu, imamo da ova vrsta segmentacije može potencijalno dovesti do pogrešne odluke o pripadnosti tačaka slike, a samim tim i nepovratnog gubitka informacija o objektima koji se na slici nalaze. To proizlazi iz činjenice da segmentacija slike izvedena na ovaj način ne dozvoljava da tačka slike može delimično u određenom obimu biti član posmatranog objekta na slici, što dalje vodi potencijalnom riziku da tačke delimično sadržane u objektu pre segmentacije neće biti pridružene objektu nakon segmentacije. Međutim, ako se umesto binarne segmentacije izvrši segmentacija slike gde se odluka o pripadnosti tačke slike objektu donosi na način koji omogućava da tačka može delimično biti član objekta u nekom obimu, tada se donošenje binarne odluke o članstvo tačke objektu na slici može izbeći u ovom ranom koraku analize. To dalje rezultira da se potencijalno velika količina informacija o objektima prisutnim na slici može sačuvati nakon segmentacije, i koristiti u sledećim koracima analize. S tim u vezi, od posebnog interesa za nas jeste specijalna vrsta fazi segmentacije slike, segmentacija zasnovana na pokrivenosti elemenata slike, koja kao rezultat obezbeđuje fazi digitalnu reprezentaciju slike gde je vrednost članstva dodeljena svakom elementu proporcionalna njegovoj relativnoj pokrivenosti neprekidnim objektom na originalnoj slici. U ovoj tezi bavimo se istraživanjem modela digitalizacije pokrivenosti koji pruža ovakvu vrstu reprezentaciju slike i predstavljamo kako se mogu postići značajna poboljšanja u oceni 3D EDT, kao i signature neprekidnog oblika zasnovane na rastojanju od centroida, ako su informacije o pokrivenostidostupne u ovoj reprezentaciji slike razmatrane na odgovarajući način.
Seng, Astrid. "10 Jahre FAMI-Ausbildung in Deutschland fachrichtungsübergreifende Studie zum beruflichen Verbleib der Absolventen." Berlin Humboldt-Univ., Inst. für Bibliotheks- und Informationswiss, 2009. http://edoc.hu-berlin.de/docviews/abstract.php?lang=ger&id=30078.
Full textArpad, Kiralj. "Simultani uticaj energije površine vlakana, geometrije sloja i prirode uljne faze na obradu zauljenih voda koalescentnom filtracijom." Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 2017. http://www.cris.uns.ac.rs/record.jsf?recordId=102460&source=NDLTD&language=en.
Full textThe aim of the doctoral thesis was to investigate the possibility of the stainlesssteel fibers application for the coalescence of mineral oil drops with differentpolarity varying also the bed permeability. Additional aim was the comparativeanalysis of the tested oil separation efficiency with fibers that have highand low surface energy. The method for the evaluation of the fiber-liquid wettingkinetic was set up and modified in order to assess the affinity of oil to theselected fiber that was used to form the filtration bed. For the first time, themethod of artificial neural networks was applied to simulate the coalescencefiltration.Experimental program of coalescence filtration was performed on oil-in-watermodel emulsion with constant inlet concentration of 500 mg/l, at a constanttemperature of 20°C, horizontal fluid flow orientation and average oil dropsize of 10 μm. The influence of bed geometry was studied varying bed permeabilityin the range from 0,1810-9 m2 to 5,51010-9 m2 for the constant layer thickness of 5 cm. Three samples of mineral oil that have large range of viscosityand polarity were tested. All experiments were carried out at constantfluid velocity in the range from 10 m/h to 80 m/h. The output dispersed phaseconcentration was determined by FTIR spectrophotometry.A significant contribution to the research of the coalescence phenomenon ina fiber bed was achieved by determining the possibility to use stainless steelfibers for the separation of mineral oil drops, broadening the apprehensionof the simultaneous influence of surface energy, bed geometry and oil phasenature, as well as the introduction of an iso-output concentration as a newparameter. The evaluation of the fiber-liquid wetting kinetic showed that thelipophilic-lyophobic wettability ratio of the material adequately describes thetendency of a filter material for the mineral oil separation. Such comprehensiveanalysis of the various parameters impact on the efficiency of coalescencefiltration, presented in this thesis, was not found in available literature. The resultsof the doctoral thesis will enable the reduction of time and material costneeded for the design of coalescer, by decreasing the extent of experimentalresearch necessary for successful design.Selected working conditions, primarily the fiber diameter in relation to the inputdrop size, as well as bed packaging, while ensuring the known and definedbed permeability, provided the desired separation, with the oil drop separationefficiency of tested stainless steel fibers in the range from 91% to 99% for a fluidvelocity range from 10 m/h to 50 m/h. When stainless steel was used, moreefficient separation was observed for the low bed permeability, whereas forthe polymer fibers the reverse order was identified. It was concluded that, inthe existing circumstances, different mechanisms of oil drop coalescence dominatefor these materials. The dependence of output concentration from thevelocity and bed permeability for both tested materials, stainless steel and polypropylene, was similar. Polypropylene has a higher operating velocity rangein comparison to stainless steel. However, when compared to polypropylene,stainless steel separates more successfully the oil with the lowest viscosity inthe low bed permeability and at low fluid velocity domain. Satisfactory qualityof separation with polypropylene is achieved at the highest bed permeabilityand in a wide fluid velocity range, whereas, with the stainless steel, the highestvalues of critical velocity, for the entire range of tested viscosity, are realized atthe lowest bed permeability.
Ljubica, Đačanin. "Luminescentna svojstva litijum-indijum oksida dopiranog jonima retkih zemalja." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2015. https://www.cris.uns.ac.rs/record.jsf?recordId=90817&source=NDLTD&language=en.
Full textThe subject of this dissertation are powders of lithium-indium oxide doped with different rare earth ions (Eu3+; Sm3+; Er3+; Yb3+), synthesized by solid-state reaction. Lithium-indium oxide has a variety of potential applications in the form of scintillators, phosphor matrixes for rare-earth ions, storage and energy conversion devices and photocatalysts. In this study the optimal method of synthesis of pure-phased powders of new phosphors LiInO2:RE3+ was determined. Also, their detailed characterization using the X-ray diffraction, scanning electron microscopy, thermogravimetry and differential thermal analysis, Raman spectroscopy and diffuse-reflection spectroscopy was performed. Photoluminescence spectroscopy was applied to investigate the properties crucial for the application of these materials. Emission spectra and lifetime values, showed these materials are potential efficient phosphors. Examining the emission of LiInO2:Er3+ sample at different temperatures indicated that this is a very good temperature sensor in the temperature range (10-300) K.
Srđan, Sokolović. "Istovremeni uticaj permeabilnosti sloja, prečnika vlakna i ulazne koncentracije uljne faze na separaciju mineralnih ulja iz otpadnih voda." Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=114057&source=NDLTD&language=en.
Full textThe aim of this doctoral dissertation is to contribute to the study of insufficiently known phenomena of coalescent filtration, in order to reduce the number of pilot plant experiments required for designing filters for some specific applications. All the used materials are waste materials the use of which as a filter media contributes to sustainable development. One of the goals of this doctoral dissertation is to study the simultaneous effect of changes in bed permeability and fiber thickness on bed properties, pressure drop and the efficiency of the dispersed oil separation from a continuous aqueous phase. The effect of bed geometry was studied by applying the beds of homogeneous and heterogeneous geometry in depth. A detailed examination of the appearance and morphology of the fibers, as well as the structure of the bed and the appearance and arrangement of its pores, was performed by scanning electron microscopy and optical microscopy. The doctoral dissertation gives an overview of the testing of fibers of different nature (free and interconnected, rigid and elastic, of different thickness and thus of different meandering) and their beds. The simultaneous effect of the changes in the input dispersed phase concentration and the bed permeability was also investigated. Much of the conducted research includes the study of the impact of the nature of the oil phase, and it is necessary to point out that all used oils are mineral oils. The goal of optimizing the operation of a coalescer was to find the conditions providing the maximum critical velocity value with a minimum pressure drop.
Ferraro, Antonio [Verfasser], Ulrike [Gutachter] Holzgrabe, and Christoph [Gutachter] Sotriffer. "Entwicklung potenzieller (ir-)reversibler Inhibitoren der Enoyl-ACP-Reduktase FabI in S. aureus/ E. coli und der Thiolase FadA5 in M. tuberculosis / Antonio Ferraro ; Gutachter: Ulrike Holzgrabe, Christoph Sotriffer." Würzburg : Universität Würzburg, 2021. http://d-nb.info/1234912619/34.
Full textIvica, Milanović. "Мерење стабилности фреквенције у фреквенцијском домену." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=107278&source=NDLTD&language=en.
Full textDisertacija istražuje najprihvatljivije metode merenja stabilnosti frekvencije ufrekvencijskom domenu, odnosno merenje vrednosti veličine „fazni šum“, prilikomprocesa etaloniranja merne opreme. Kada se govori o mernoj opremi koja je predmetetaloniranja, disertacija je, pre svega, okrenuta ka etaloniranju vrhunskihkomercijalnih standarda (etalona) frekvencije. Prikazana istraživanja su bila osnovza pokretanje i realizaciju istraživačko-razvojnog projekta u okviru Ministarstvaodbrane, koji je imao za cilj osposobljavanje metrološke laboratorije Tehničkogopitnog centra Vojske Srbije za potpuno etaloniranje merne opreme iz oblastivremena i frekvencije. Različite metode merenja podrazumevaju i različite mernemogućnosti, kao i vrlo širok spektar etalonske i merne opreme koja se koristi prinjihovoj realizaciji. U disertaciji se prikazuju različiti načini merenja faznog šumai opisuju metode realizovane na osnovu dostupne merne opreme. Kako se radi ometodama uporedne analize referentnog i merenog signala, posebno kritična pozicijaje odabir reference, odnosno referentnog etalona. Istraživanje je dovelo dozaključaka kojima je predložen metod merenja potrebne i dovoljne merne nesigurnostikao i način realizacije izabrane metode, odnosno odabir etalonske merne opreme. Ucilju uvođenja merne metode u upotrebu, izvršena su i prikazana merenja narazličitim tipovima i vrstama merne opreme. Validacija metode je ostvarenabilateralnim poređenjem sa Direkcijom za mere i dragocene metale, Grupa za vreme,frekvenciju i distribuciju vremena. Da je moguće realizovati metodu merenja faznogšuma prilikom etaloniranja najkvalitetnijih oscilatora je postavljena hipotezadisertacije, koja je istraživanjem dokazana i praktično sprovedena. Krajnji rezultatistraživanja je doveo do uvođenja priznate metode etaloniranja faznog šuma, prvi put
The dissertation examines the most acceptable methods for measuring the frequency stabilityin the frequency domain, that is, measuring the value of the "phase noise", during the processof measuring equipment calibration. When it comes to measuring equipment as a subject ofcalibration, the dissertation is, first of all, oriented towards the calibration of the highestcommercial frequency standards. The presented researches were the basis for initiation andrealization of the research and development project within the Ministry of Defense, which wasaimed at training the metrology laboratory of the Technical Test Center of the Serbian Armyfor complete calibration of measuring equipment in the area of time and frequency. Differentmeasurement methods also involve different measurement possibilities, as well as a very widerange of calibration and measuring equipment used in their realization. Different methods ofmeasuring phase noise are described in the dissertation and they describe realized methodsbased on available measuring equipment. As for methods of comparative analysis of thereference and measured signal, a particularly critical position is the selection of the reference,that is, the reference oscillator. The research led to conclusions suggesting the method ofmeasuring the necessary and sufficient measurement uncertainty, as well as the method ofrealization of the chosen method, i.e. selection of the standard measuring equipment. In orderto put the measurement method into practice, measurements were performed on differenttypes of measuring equipment. Validation of the method was achieved by bilateralcomparison with the Directorate of Measures and Precious Metals, Group for time, frequencyand time dissemination. The possibility to realize the method of phase noise measurementduring the calibration of the highest quality oscillators is a hypothesis of the dissertation thathas been set up, and has been proven and practically carried out by the research. The finalresult of the research led to the introduction of a recognized calibration method of the phasenoise, for the first time in the Republic of Serbia.
Ivana, Lončarević. "Uticaj lecitina različitog porekla na kristalizaciona svojstva masne faze i kvalitet mazivog krem proizvoda sa dodatkom funkcionalnih biljnih ulja." Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 2013. https://www.cris.uns.ac.rs/record.jsf?recordId=85309&source=NDLTD&language=en.
Full textSoy lecithin is widely used emulsifier in confectionery industry of Serbia. On the other hand, there is a large production of sunflower and rapeseed oil, which contributed the production of sunflower and rapeseed lecithin as a by-product of degumming of crude oil during refining process. Another issue is a high level of undesirable trans-fatty acids in hydrogenated vegetable fats that are being used in the production of cream spread. Beside hidrogenated fats, cream product contains sunflower oil with essential fatty acids (oleic and linoleic) and α-tocopherol (E vitamin), has an average content of sterols, squalene and a low content of carotenoids, but almost does not contain the essential α-linolenic acid and antioxidants, δ-and γ-tocopherol.The first phase of this work investigatesthe possibility of soy lecithin replacement in cocoa spread cream production with sunflower and rapeseed lecithin, in terms of optimizing the amount of lecithin and milling time in laboratory ball mill.The second phase investigates nutrition value improvement of cocoa spread cream, with partly or completely replacing sunflower oil with functional soybean, rapeseed and sesame oil.Gas chromatography was used in order to examine the fatty acid composition in edible non trans-fat and vegetable oils, as well as in lecithin from different sources. Phospholipid composition in soy, sunflower and rapeseed lecithin was determined using quantitative phosphorus nuclear magnetic resonance technique. Crystallization properties of fat phase of cocoa spread cream were examined by pulsed nuclear magnetic resonance spectroscopy, while crystallization kinetics was defined using the Gompertz's mathematical model.Rheological properties of cocoa spread cream were analyzed by rotational viscosity, certain textural characteristics were determined using texture analyser and also thermal properties using differential scanning calorimetry. The color on the surface of cocoa spread cream was defined using tristimulus colorimetric method, and sensory analysis was determined by the scale over a period of six months of storage in the dark and room temperature. Shelf-life of cocoa spread cream was determined applying gas chromatographic analyses of the formed aldehydes as secondary products of lipid oxidation.
Gayer, Christian. "Prognoseevaluation konjunktureller Gesamtindikatoren für Deutschland : eine ökonometrische Analyse von FAZ-Konjunkturindikator, Handelsblatt-Frühindikator und Ifo-Geschäftsklima-Index /." Frankfurt am Main : Lang, 2003. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=010294811&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Full textBeraha, Laura. "Compilation in the art of Fazil' Iskander and as a key to Sandro iz Chegema." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74581.
Full textThe first chapter retraces the piecemeal emergence of Sandro and the often contradictory critical response. The second focuses on the period's proclaimed goal of expanding into larger and ultimately epic forms. A compilative impulse based on recurrence and a quasi-oral tone is shown in the third to run throughout Iskander's work.
Chapters Four and Five compare parallel cycles with Sandro to demonstrate the compartmentalization effect of aphorism and autobiographical reminiscence. The final chapter discusses the I-narrator's compilative position within and without the narrated world.
This structural isomorphism, together with a vertical dynamics replacing the more familiar linear development, is considered to lend to Iskander's compilative method its own, open-ended unity.
Vladimir, Bugarski. "Ekspertski sistem za upravljanje brodskom prevodnicom zasnovan na računarskoj inteligenciji." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2015. http://www.cris.uns.ac.rs/record.jsf?recordId=95378&source=NDLTD&language=en.
Full textThis thesis presents a solution to automatic control of a two-way one-channelship lock. Expert system based on fuzzy logic is designed. This controlsystem is tested on model of ship lock created using statistical data oftransportation density on DTD (Danube-Tisa-Danube) channel, usingtechnical documentation of ship lock and interview with operators. Thesystem is further optimized with global optimization techniques. Givensolution proved to be significantly better than standard decision algorithms.
Ivan, Đorđević. "Модел за планирање испорука добављача у ланцима снабдевања у аутомобилској индустрији." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2019. https://www.cris.uns.ac.rs/record.jsf?recordId=110937&source=NDLTD&language=en.
Full textU doktorskoj disertaciji su predložena dva modela: model za planiranje isporuka i agregaciono planiranje proizvodnje i model za prognozu kupčeve potražnje u lancu snabdevanja u automobilskoj industriji. Oba modela primenjena su na studiji slučaja u preduzećima dva dobavljača iz oblasti automobilske industrije u Republici Srbiji. Istraživanje je pokazalo primenljivost predloženih modela na praktičnim problemima u prisustvu neizvesnosti i upotrebljivost njihovih rezultata u automobilskoj industriji. Modeli su pokazali bolje rezultate u odnosu na praktične podatke u preduzećima i u odnosu na osnovne strategije za planiranje proizvodnje i zaliha koje se koriste u automobilskoj industriji.
In doctoral dissertation are proposed two models: model for delivery planning and aggregate production planning and model for customer demand forecasting in supply chain in automotive industry. Both models are applied on the case study in enterprises of two suppliers from area of automotive industry in Republic of Serbia. The research shows applicability of proposed models on practital problems in the presence of uncertanty and usability of their results in automotive industry. Models have showed better results in regard to both the practical data in enterprises and a basic strategies for production planning and inventory planning which are used in automotive industry.
Ivana, Štajner-Papuga. "Uopštena konvolucija." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2001. https://www.cris.uns.ac.rs/record.jsf?recordId=5987&source=NDLTD&language=en.
Full textIn this thesis the generalized convolution have been defined. This operation with functions has applications in different mathematical theo ries, for example in Probabilistic Metric Spaces, PDE, System and Control Theory, Fuzzy numbers. Some basic properties of this operation has been proved, as well as connection between generalized convolutions based on different classes of semirings. (5, U)-convolution has been defined, as well as convolution based on generalized pseudo-operations.
Sanja, Panić. "Fizičko-hemijske i katalitičke osobine ugljeničnih nanocevi sintetisanih metodom katalitičke hemijske depozicije iz gasne faze – korelacija sa osobinama primenjenih katalizatora na bazi prelaznih metala (Fe, Co, Ni)." Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 2014. http://www.cris.uns.ac.rs/record.jsf?recordId=89673&source=NDLTD&language=en.
Full textThe existance of carbon nanotubes (CNTs), as one of the carbon allotropes, was noted over half century ago. However, the true interest for these nanomaterials appeared at 1991, when they were "redescovered" by Japanese scientist S. Iijima. Since then, due to their unique physico-chemical properties, CNTs begin to attract attention of the scientific community and to gather researchers from different areas within the common field of interest – nanotechnology. The CNTs discovery substantially enabled the high technology development in the fields such as electronics, optics, composite materials, catalysis, environmental protection, etc. Nowdays, the application of nanotubes is increasingly contributing to easier implementation of sustainable development principles in the above mentioned areas. Catalysis is the field of double interest – one of the CNTs synthesis method is catalytical, and the nanotubes can also be used as the support of the new catalyst.The research, which results are shown within this PhD Thesis, includes few different CNTs research fields, starting from the synthesis method development, over the purification and functionalization of the final product, to the application ofnanotubes in two processes of significance for the field of environmental protection.The development of the CNTs catalytic synthesis method was started by the use of vertical quartz tube reactor, in the flow of CO and CH4 as the carbon source, and in the presence of monometallic catalysts based on Fe, Co and Ni at Al2O3 as the support (the first series of catalysts). The results of these preliminary experiments have shown the low activity of these monometallic catalysts, which can be attributed to the inadequate reactor hydrodynamics and selected reaction parameters, as well as the inadequate size of the catalytic particles and the type of their packing in the vertical reactor. Consequently, in order to achieve the higher nanotubes yield, further synthesis experiments were carried out in a horizontal reactor in the flow of C2H4 as the carbon source, and in the presence of the second series of monometallic catalysts with Al2O3 and SiO2 as the supports. The catalysts of the second series have shown satisfactory activity in the CNTs synthesis reaction, and the results of the obtained samples characterization idicate a different influence of the catalyst support on the synthesized CNTs morphology. In order to optimize the reaction parameters, Fe/SiO2 catalyst was chosen as a representative to examine the effect of the CNTs synthesis duration, as well as the volume percentage of C2H4 in the mixture with nitrogen to the CNTs yield and process selectivity. In a further phase of work, the optimization of thereaction parameters led to the introduction of the bimetallic catalysts with the same traditional supports, Al2O3 and SiO2. The highest carbon yield was achieved over Fe, Co based catalysts, regardless of the type of the catalyst support. CNTs synthesized over the above mentioned catalysts were characterized in order to study the effect of the used supports on their physico-chemical properties, and consequently the CNTs tip growth mechanism was proposed. The results of quality examination of the synthesized CNTs showed that the use of SiO2, as a catalyst support, unlike Al2O3, favors the growth of nanotubes of better surface and overall crystalline quality. In view of the diversity of possible CNTs applications, investigation in that direction requires purified CNTs and accordingly the final CNTs products were purified by liquid oxidation method. The results of physico-chemical characterization of the purified CNTs showed that the applied purification method was effective in terms of removing the present catalyst, but on the other hand it had different influence on the structure and quality of the purified samples. As a consequence of CNTs structural changes, as well as their different degree of functionalization, the overall crystalline quality of the purified nanotubes, originating from different catalyst supports, was changed in comparison to the corresponding unpurified samples. Over the past few years, special attention was focused onnanomaterials that can be applied as adsorbents or catalysts for the removal of various pollutants from the environment. This PhD Thesis considers the use of CNTs, as adsorbent, for the removal of insecticide thiamethoxam from water, as well as their use as catalyst support for water denitration reaction. The results of adsorption experiments have shown that the CNTs, pretreated in ccHNO3, represent a good adsorbent for the removal of thiamethoxam from the aqueous solutions. Theselection of the process parameters in order to study the adsorption kinetics and equilibrium, as well as the thermodynamics of the process, was conducted using thefractional factorial design at two levels, 5 1 V 2 . The obtained results showed that the adsorption process is spontaneous and controlled mainly by an internal diffusion of molecules of insecticide in the mesopores of CNTs. The performance of the catalyst with the CNTs as the support were tested in catalytic water denitration reaction, whereby the results showed that the newly formed catalyst is characterized by satisfactory dispersion of Pd-Cu bimetallic nanoparticles which enable the 60% conversion of nitrate ions.
Elvira, Vukašinović. "Analiza lipida i masnih kiselina nedijapauzirajućih i dijapauzirajućih gusenica kukuruznog plamenca (Ostrinia nubilalis, Hbn.) (Insecta: Lepidoptera)." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2014. https://www.cris.uns.ac.rs/record.jsf?recordId=87272&source=NDLTD&language=en.
Full textEuropean corn borer (Ostrinia nubilalis, Hbn.) inhabiting temperate regions that survive low winter temperatures as a diapausing fifth instar larva. Diapausing larvae are cold hardy and freeze tolerant as they are able to survive the extracellular formation of ice crystals. Winter survival for many insect species living in seasonally cold environments includes a radical remodeling of metabolism. This implies entry into a developmentally arrested, hypometabolic state of winter diapause, which in O. nubilalis and many other insect species of these habitats is closely related to their cold hardiness.Although the basic structural and metabolic events consider insect diapause is already known, there are still many doubts about the survival of insects in an unfavorable environment, particularly in terms of exposure to low winter temperatures and mechanisms of cryoprotection. Therefore, the aim of this thesis in terms of biophysical properties of lipids and fatty acid compositions, was to: i) to determine the biophysical properties (phase transition temperatures) of the total lipids of non-diapausing larvae and diapausing larvae during diapause (early diapause, mid diapause and termination of diapause), as well as under controlled cooling conditions during different phases of diapause; ii) to determine the fatty acid compositions of structural (polar) and storage (non-polar) total lipid fractions of non-diapausing larvae and diapausing larvae, as well as under the influence of different temperatures during diapause in the controled experimental conditions; iii) to determine the lipid classes composition of total lipids extracted from the haemolymph and fat body of non-diapausing and diapausing larvae; iiii) to determine the haemolymph and fat body total lipid fatty acid compositions as well as the biophysical properties of the fat body total lipids of non-diapausing larvae and diapausing larvae during diapause as well as in terms of controlled cooling conditions. Thus, our research was focused on the non-diapausing (ND) as well as the diapausing larvae (D) that were exposed to low temperatures during different phases of diapause.During analysis of European corn borer O. nubilalis lipids, the following techniques was used: thin layer chromatography (TLC) with scanning densitometry, for the separation and quantification of lipid classes; gas-mass chromatography (GC-MS ) for the analysis of the fatty acid composition of lipids and the differential scanning calorimetry (DSC), for the thermal analysis of the extracted lipids.The fatty acid compositions and biophysical properties of lipids differed markedly between non-diapausing and diapausing larvae of O. nubilalis. Diapause was associated with a dramatic increase mainly the proportions of palmitoleic acid (16:1n-7) and oleic acid (18:1n-9), with concurrent reductions in palmitic acid (16:0) and linoleic acid (18:2n-6). The increase in the level of unsaturation of lipids, which caused a marked shift in their phase transitions to lower temperatures, was triggered by diapause rather than low temperatures. Adjustments of fatty acid compositions are likely to be an important component of winter diapause mechaisms, possibly maintaining the fluidity of cell membranes, and the functionality of the organism during lower winter temperatures. We conclude that O. nubilalis undergoes remodeling of fatty acid profiles of lipids as an element of its overwintering physiology which may improve the ability to harden during diapause.
SILVA, CLARA CYRINO LUGAO. "ANYTHING BECOMES A SONG/ DE TUDO SE FAZ CANÇÃO: ON THE CHOSEN THEMES IN CLUBE DA ESQUINA’S MUSIC." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2012. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=21534@1.
Full textCOORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE SUPORTE À PÓS-GRADUAÇÃO DE INSTS. DE ENSINO
O presente trabalho tem como objeto as escolhas temáticas na música do Clube da Esquina, grupo de amigos cujo auge da produção musical se deu nos anos 1970, tendo como lugar de encontro a cidade de Belo Horizonte, em Minas Gerais. A questão central que vai guiar a análise das canções é como se dá a transformação das ideias, discussões e pensamentos dos envolvidos no grupo em música. O objetivo é entender aquilo que escolhem como tema e é objeto de uma fruição conjunta. Como tema, é importante pensar não apenas nos assuntos, no que está nas letras das canções, mas também nas escolhas sonoras feitas na criação dessa produção musical. Dentre os principais temas analisados estão as influências culturais do Estado de Minas Gerais, a articulação destas com referências globais, os contextos social, político e cultural dos anos 1970 e grupos étnicos que têm em comum o fato de terem sido dominados em algum momento histórico. Bastante diversos e, em alguns casos, aparentemente opostos, esses temas estão presentes de forma harmônica na música do Clube da Esquina, o que mostra uma convivência entre a diversidade de referências dos vários integrantes, que se torna possível pela via da amizade.
This thesis is a study of the thematic choices made by the members of Clube da Esquina, a group of musical friends in Belo Horizonte, Minas Gerais, who were in their heyday in the 1970s. The central question that will guide the analysis of the songs is how ideas, thoughts and discussions of group members were transformed into music. The goal is to understand their choices of themes as objects of collective enjoyment. Theme here is taken to mean not only the subjects of song lyrics but also the musical choices made. Among the key themes analyzed are the cultural influences of Minas Gerais State, their relation with global references, the social, political and cultural context of the 1970s, and ethnic groups having as a common characteristic the fact that all were subjugated at some moment in history. Quite diversified and at times seemingly opposed to one another, these themes are harmoniously present in the music of Clube da Esquina, highlighting the coexistence of the different backgrounds of the various members, made possible by the ties of friendship.
Vladan, Krsman. "Specijalizovani algoritmi za detekciju, identifikaciju i estimaciju loših podataka u elektrodistributivnim mrežama." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2017. http://www.cris.uns.ac.rs/record.jsf?recordId=104436&source=NDLTD&language=en.
Full textThe doctoral dissertation has demonstrated that conventional bad data detection andidentification methods cannot be efficiently applied in distribution networks, due totheir characteristics such as low measurement redundancy, number of pseudomeasurements and level of measurements correlation. In addition, the doctoraldissertation described newly developed algorithms for bad area detection based ondecoupled Chi-squares test, bad data identification using newly defined whitenedresiduals, estimation of phase connectivity by extension of state estimation withconditional constraints and correction of pseudo measurements using AMI data. Thementioned algorithms are specialized for distribution networks and verified throughsimulation on two test systems.
Robert, Rekecki. "Aktivacija procesa sinterovanja kod silikatnih sistema promenom atmosfere pečenja." Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 2015. https://www.cris.uns.ac.rs/record.jsf?recordId=91923&source=NDLTD&language=en.
Full textThe firing process in clay roofing tile production is normally carried out in oxidizingfiring atmosphere. The obtained microstructure which provides the most importantproperties of the application depends on the mineralogical composition of the starting raw material and the firing temperature.Concerning the production of roofing tiles, clay raw materials with a high content ofcarbonates such as the Kanjiza clay material, possess an inappropriate composition. The melt phase is formed after the decomposition of clay minerals during the common firing process. This liquid phase, due to its extent wetting characteristics, is not able to wet properly the earth alkali oxides obtained after the decomposition of the carbonates. The expected new crystalline phases, like gehlenite and anorthite, which are needed for the favorable technical properties of the roofing tiles, can not be formed in the required quality and quantity. One solution to this problem is the limebonding improvement by changing the conditions of the firing atmosphere.The main aim of this work is to examine the effects of firing conditions on theproperties of clay roofing tiles with high carbonate content. The obtained physical andmechanical properties and the obtained new crystalline phases are described in detail.The experiment used dilatometry, X-ray diffractometry, 57Fe Mössbauerspectroscopy to identify the changes during the firing process in oxidizing andreducing atmosphere (CO/N2 atmosphere) at temperatures between 700 and 1060°C.Furthermore, for industrial sample analysis, scanning electronmicroscopy with EDS,XPS, Hg porosimetry, water absorption procedure, frost resistance and bendingmeasurements were applied.The application of reducing atmosphere was proved to be valid. The obtainedroofing tiles had improved properties compared to the standard production which usesoxidizing firing atmosphere.
Maja, Krstić. "Лексички крњи глаголи и њихова употреба у савременом руском и српском језику." Phd thesis, Univerzitet u Novom Sadu, Filozofski fakultet u Novom Sadu, 2016. http://www.cris.uns.ac.rs/record.jsf?recordId=100369&source=NDLTD&language=en.
Full textDati rad ima zadatak da predstavi, opiše i odredi status leksički krnjih glagola u ruskom i srpskom jeziku. Reč je o glagolima koji nisu sposobni samostalno da funkcionišu, zbog čega su upućeni na samostalne reči, sa kojima u spoju ostvaruju svoju ulogu i postaju sposobni da izraze gramatičko značenje samostalnih reči, kao i čitave konstrukcije čiji su sastavni deo.Glagoli ovoga tipa biće klasifikovani u tri osnovne grupe: 1) kopulativni glagoli; 2) modalni i fazni glagoli i 3) formalno punoznačni glagoli, njihova analiza sprovodiće se kako u okviru navedenih grupa, tako i u celini, a osnovu datog proučavanja predstavljaće kontrastivna analiza i određivanje statusa datih glagola u savremenom ruskom i srpskom jeziku.Iako su više puta bili predmet istraživanja, nepunoznačni glagoli nisu dobili jednu celovitu analizu, nisu adekvatno grupisani i pobrojani, nije urađena tipološka klasifikacija ove grupe glagola u oba poređena jezika. Nasuprot detaljno istraženoj grupi punoznačnih (samostalnih) glagola, grupa leksički nepunoznačnih glagola zaslužuje iscrpniju analizu, jasniju naučnu definiciju, izučavanje njihove semantike, karaktera, kao i specifičnosti odnosa koje označavaju, odnosno položaja koji zauzimaju u opštem sistemu jezičkih jedinica.
The aim of this dissertation is to analyze and determine the status of lexically incomplete verbs in Russian and Serbian. Lexically incomplete verbs are those that cannot function independently, which is why they are directed towards independent words. It is by means of this relationship they are able to perform their function and express grammatical meaning of independent words, as well as of the entire phrase they are a part of.These verbs will be classified in three primary groups: 1) copulative verbs; 2) modal and phase verbs; 3) verbs with formally full meaning, their analysis will be performed both within the framework of the aforementioned groups and by treating them as a whole, whereas the basis for the study will be set by a contrastive analysis and the determination of the status of the verbs in modern Russian and Serbian.Even though they have so far been an object of numerous studies, verbs without full meaning have yet not been given a thorough analysis, nor have they been adequately grouped, inventoried and typologically classified in either of the two contrasted languages. If compared to the group of independent verbs with full meaning that were examined in great detail, the group of verbs without full lexical meaning deserves a more comprehensive analysis, a clearer scientific definition, an analysis of their semantics, character, as well as the specific relations they signify and the position they occupy in the general system of linguistic units.
Etessami-Azam, Jean-Luc. "Das Kardio-Fazio-Kutane Syndrom (CFC) 8 neue Patienten und Literaturauswertung /." 2005. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=014190775&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Full textFerraro, Antonio. "Entwicklung potenzieller (ir-)reversibler Inhibitoren der Enoyl-ACP-Reduktase FabI in S. aureus/ E. coli und der Thiolase FadA5 in M. tuberculosis." Doctoral thesis, 2021. https://doi.org/10.25972/OPUS-23839.
Full textAntimicrobial resistance poses a global challenge and is associated with high morbidity and mortality. The case fatality rate of infections caused by multidrug-resistant pathogens continues to be on the rise, causing the WHO to compile a priority pathogens list that is supposed to advance the development of new antimicrobial compounds. The list is mainly comprised of gramnegative bacteria, since these are especially resilient to many antibiotics. This is due to their cellular structure and various mechanisms of resistance. Some grampositive bacteria are also a danger to public health and are therefore part of this list. Consequently, there is an urgent need for the development of new antiinfectives with novel modes of action, so that the current resistance situation can be adequately addressed. This work is concerned with the development and synthesis of covalent reversible inhibitors of the enoyl-ACP reductase FabI (Staphylococcus aureus, Escherichia Coli) and the thiolase FadA5 (Mycobacterium tuberculosis). Both enzymes are critically important for the survival of the respective bacteria. FabI is an essential and rate determining enzyme of the type II fatty acid synthesis of various bacteria. A number of important phospholipids required for the cell membrane are biosynthesized via this metabolic pathway. Schiebel et al. were able to develop and characterize a potent inhibitor for S. aureus and E. Coli. Using this compound as a starting point, a library of compounds carrying various “warheads” was synthesized. Further structural variations were introduced by using different linkers between the pyridone scaffold and the electrophilic group as well as diverse aromatic rings connected via the ether bridge. These compounds were assayed concerning their inhibitory activity at the respective enzyme. Of these, substances 32 and 33 showed good inhibition of the enzyme, prompting the determination of the IC50 values. The two substances were able to reduce enzymatic activity by 50% at nanomolar concentration levels. In addition, substance 32 was characterized concerning its ability to covalently inhibit its molecular target by means of the so-called jump dilution assay. This experiment showed no covalent inhibition of the target enzyme. The individual reactivity of the warhead moieties present in the library was determined against a synthetic tripeptide by using a LC/MS iontrap system. All the examined compounds showed no reaction with the nucleophilic amino acid tyrosine contained in the tripeptide at significant levels, which indicates that its nucleophilicity is insufficient at the pH of the assay (pH = 8,2 and 10,8, respectively). Crystallization experiments were conducted to ascertain the binding mode of the compounds. The crystal structures showed the substances binding to the enzyme in the desired pose, yet a covalent modification of tyrosine146 remains unlikely due to the large distance (6 Å) between the electrophilic moiety and the amino acid. Additionally, some physicochemical properties (Stability, aqueous solubility and logP) of compounds 32 and 33 were characterized. M. tuberculosis is the causative pathogen of the globally occurring infectious disease tuberculosis, which belongs to the 10 most frequently occurring causes of death worldwide. The germ is able to metabolize the cholesterol present in the human body and uses its degradation products as an important carbon source. The thiolase FadA5 is involved in this metabolic pathway and was identified as a potentially innovative target for novel antibiotics. Docking studies enabled the identification of two potential lead structures for inhibitors of FadA5. In this work, the proposed structures carrying the desired warheads were synthesized and characterized concerning their inhibitory activity at the target enzyme. The target compounds showed no significant inhibition or covalent binding to FadA5
Pidugu, Lakshmi Swarna Mukhi. "Structural Studies On The Enzymes FabI And FabZ Of Plasmodium Falciparum." Thesis, 2006. http://hdl.handle.net/2005/381.
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