Log in

Relevant bibliographies by topics / Tubers size / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Tubers size.

Dissertations / Theses on the topic 'Tubers size'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Tubers size.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Thomas, Mark Nathan. "The control of tuber size in maincrop potatoes." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293832.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Judy, Christopher Daniel Shon Paul. "Evaluating the effects of elbows and duct size on the accuracy of hand-held pitot traverse flow measurements." Morgantown, W. Va. : [West Virginia University Libraries], 2007. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5479.

Full text

Abstract:

Thesis (M.S.)--West Virginia University, 2007.<br>Title from document title page. Document formatted into pages; contains v, 44 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 39-40).

APA, Harvard, Vancouver, ISO, and other styles

3

Legrand, Marc. "Analyse mécanique du procédé de perçage-laminage de tubes sans soudure." Valenciennes, 1988. https://ged.uphf.fr/nuxeo/site/esupversions/a607fb05-d8aa-4fb4-b724-e5c092546d6d.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Doremus, Eric. "Modelisation numérique du laminage perçage de tubes sans soudure à chaud." Valenciennes, 1991. https://ged.uphf.fr/nuxeo/site/esupversions/8f037566-27a9-4830-9d5d-69dae0cf8946.

Full text

Abstract:

La fabrication des tubes sans soudure a chaud nécessite de plus en plus d'améliorations en terme de qualité dans le but d'atteindre le zéro défaut. Afin d'établir avec sécurité une procédure d'optimisation des paramétres de réglage du procédé de perçage de tubes, un code de calcul basé sur une méthode par éléments cinématiques a été développée et permet de visualiser rapidement le rendement du laminoir perceur, les vitesses plastiques, les vitesses de déformation, les contraintes hydrostatiques ainsi que le champ des températures dans la billette. On montre que le gradient des variables d'état

APA, Harvard, Vancouver, ISO, and other styles

5

Sandid, Mohamed Habib. "Contribution à l'étude des aéroréfrigérants : comportement des tubes à ailettes à haute température." Valenciennes, 1987. https://ged.uphf.fr/nuxeo/site/esupversions/25a3d1c4-6ca4-4edb-b0f4-1e509e6f0c38.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Saghir, Ba Mohammed Mohamed. "Modélisation numérique de la déshumidification de l'air humide dans les échangeurs de chaleur à tubes ailetés." Valenciennes, 2007. https://ged.uphf.fr/nuxeo/site/esupversions/a0ce7a06-8f0f-4d94-a61b-446f6cb24fdd.

Full text

Abstract:

Ce mémoire de thèse présente des simulations numériques de la déshumidification d’un écoulement d’air humide dans des échangeurs thermiques de chaleur. La déshumidification de l’air est modélisée par la mise en place d’un modèle de condensation spécifiquement développé et intégré dans un code de calcul CFD. Deux approches différentes (monophasique et diphasique) de modélisation de l’écoulement air humide/condensat sont proposées. Dans un premier temps, le modèle monophasique a été appliqué à un échangeur à ailettes planes continues et à un autre à ailettes circulaires indépendantes. Les perfor

APA, Harvard, Vancouver, ISO, and other styles

7

Haboussa, Grégory. "Contribution à la validation des méthodes numériques pour les problèmes dynamiques couplés fluide-structure." Valenciennes, 2008. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/66881e67-4270-45a8-943c-a32adee5eda6.

Full text

Abstract:

Ce travail vise à améliorer la capacité de prédiction des comportements dynamiques transitoires des solides et des structures lors de sollicitations de type crash, spécifiquement lorsqu’un milieu fluide doit être pris en compte. La première étape a consisté à mesurer une observable expérimentale, caractéristique de l’impact hydrodynamique : l’évolution du chargement en pression sur la paroi de la structure. Pour aboutir à cela, une base expérimentale antérieure d’impact de goutte d’eau sur capteur de pression a été exploitée. La pression de paroi est obtenue en déterminant une fonction de tran

APA, Harvard, Vancouver, ISO, and other styles

8

Gullberg, Daniel. "Influence of composition, grain size and manufacture process on the anisotropy of tube materials." Thesis, Uppsala University, Department of Engineering Sciences, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-125336.

Full text

Abstract:

<p>A problem with cold pilgered tubes for OCTG applications is that they can get anisotropic properties with regard to yield strength. One source of anisotropy is texture that is developed during the cold deformation. EBSD measurements have been made on several austenitic stainless steels with different deformations to see what influence the composition has on the texture formation. The same measurements were used to study the influence of grain size on texture formation. The conclusion was that the composition can have an impact on the texture and hence has potential to also affect the anisot

APA, Harvard, Vancouver, ISO, and other styles

9

Houston, Stephen Douglas. "Tube-side flow and heat transfer in package boilers." Thesis, Heriot-Watt University, 1992. http://hdl.handle.net/10399/804.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Setyo, Darmanto Prihadi. "Contribution théorique et expérimentale à l'étude de la formation du givre autour d'un faisceau tubulaire." Valenciennes, 1990. https://ged.uphf.fr/nuxeo/site/esupversions/b09968ec-e276-479d-826b-3fe8a80c2944.

Full text

Abstract:

L’étude de l'épaississement du givre autour d'un tube et d'un faisceau de tubes, nous a permis de mettre en évidence les phénomènes liant la dynamique de l'écoulement incident et sa modification due à l'interaction des tubes et les conséquences sur le phénomène du transfert convectif et notamment la formation du givre. L’analyse de la fréquence d'échappement tourbillonnaire nous a également permis d'expliquer les résultats obtenus concernant l'importance de la position des tubes dans un faisceau sur l'épaississement du givre. Il apparait qu'un tube dans un faisceau se comporte comme un tube is

APA, Harvard, Vancouver, ISO, and other styles

11

Amin, Lekhraj Purushotham. "An investigation of droplet stability and droplet size distribution in a continuous oscillatory baffled tube." Thesis, Heriot-Watt University, 2005. http://hdl.handle.net/10399/226.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Khallaki, Kaoutar. "Analyse numérique des mécaniques d'intensification du transfert thermique par promoteurs de tourbillons dans les échangeurs à tubes ailetés." Valenciennes, 2006. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/a058154b-2a0c-4692-a6e8-df40778d3325.

Full text

Abstract:

Ce mémoire concerne l'amélioration des transferts thermiques dans les échangeurs de chaleur compacts à tubes et à ailettes planes continues. Dans ce travail, on étudie numériquement la topologie de l'écoulement et son influence sur le transfert thermique. Les effets de la variation de l'espacement inter-ailettes et de la vitesse frontale de l'écoulement sont analysés. Les résultats sont comparés et validés avec des essais expérimentaux aux niveaux dynamique et thermique. On montre que l'écoulement dans ce type d'échangeurs se caractérise par la présence de tourbillons en " fer à cheval " en am

APA, Harvard, Vancouver, ISO, and other styles

13

Rigaut, Jean Michel. "Simulation numérique de l'étirage à froid de tubes par des modèles mécaniques à réponse rapide : Contribution à l'identification de lois constitutive surfaciques." Valenciennes, 1991. https://ged.uphf.fr/nuxeo/site/esupversions/b388517f-4f2c-43d2-b4c4-6035a48c6424.

Full text

Abstract:

Une mauvaise définition des gammes de fabrication, un dimensionnement inadéquat ou un mauvais réglage des outillages, une sous-estimation des efforts moteurs, sont des facteurs d'accroissement des couts et délais de fabrication lors de l'étirage à froid de tubes d'acier sur mandrin cylindrique et sur mandrin flottant. L'analyse mécanique de ces techniques d'étirage est obtenue par la création de logiciels à réponse rapide fondes sur la méthode des éléments cinématiques et statiques. Les modèles développés permettent l'introduction d'une loi volumique plastique écrouissable et d'une loi surfaci

APA, Harvard, Vancouver, ISO, and other styles

14

Nacer-Bey, Moussa. "Etude expérimentale des caractéristiques des structures tourbillonnaires se développant dans les échangeurs de chaleur à tubes et ailettes planes continues." Valenciennes, 2004. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/e4902fdd-c809-4c36-ac9a-cf51f4e5eb24.

Full text

Abstract:

Ce travail s’inscrit dans le cadre des recherches des méthodes d'accroissement du transfert thermique dans les échangeurs de chaleurs à tubes et à ailettes planes continues. On étudie principalement l’effet de l’espacement inter-ailettes et de la vitesse d’écoulement sur les structures tourbillonnaires autour d’un seul tube muni de deux ailettes planes. Pour ce faire, la technique PIV à été utilisée. On montre que la zone des tourbillons fer à cheval en amont du tube et la région du sillage de celui-ci sont plus larges lorsque le nombre de Reynolds, ReD, et l'espacement inter-ailettes, E/D, au

APA, Harvard, Vancouver, ISO, and other styles

15

Hofmann, René. "Experimental and numerical gas-side performance evaluation of finned tube heat exchangers." Düsseldorf VDi-Verl, 2009. http://d-nb.info/999472240/04.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Tubman, Ian McCrea. "AN ANALYIS OF WATER FOR WATER-SIDE FOULING POTENTIAL INSIDE SMOOTH AND AUGMENTED COPPER ALLOY CONDENSER TUBES IN COOLING TOWER WATER APPLICATIONS." MSSTATE, 2002. http://sun.library.msstate.edu/ETD-db/theses/available/etd-12122002-092733/.

Full text

Abstract:

This thesis investigates the potential for fouling in plain and augmented tubes in cooling tower applications. Three primary factors that affect fouling potential are examined: inside tube geometry, water velocity, and water quality. This paper presents a literature survey for in general precipitation fouling, particulate fouling, cooling water fouling, and fouling in enhanced tubes. This thesis also attempts to determine water qualities that are typical of those found in actual cooling towers. The water quality was determined by taking water samples from cooling towers throughout the country

APA, Harvard, Vancouver, ISO, and other styles

17

Tubman, Ian McCrea. "An analysis of water for water-side fouling potential inside smooth and augmented copper alloy condenser tubes in cooling tower water applications." Master's thesis, Mississippi State : Mississippi State University, 2003. http://library.msstate.edu/etd/show.asp?etd=etd-12122002-092733.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Németh, M. Barbara. "Pollen Performance and Seedling Vigor in Laboratory and Natural Populations of Clarkia Unguiculata (Onagraceae)." Miami University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=miami1117816212.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Serdar, Orhan. "Experimental Investigation And Modeling Of Dropwise Condensation On A Horizontal Gold Coated Tube." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605609/index.pdf.

Full text

Abstract:

The phenomenon dropwise condensation on a horizontal gold coated tube is investigated by both analytical and experimental methods in this study. A computer program is prepared to calculate the dropwise condensation heat transfer rate on the horizontal gold coated tube. An experimental setup was also manufactured to measure the dropwise condensation heat transfer rate. The effects of flow rate, temperature of cooling water and also steam to wall temperature difference have been analytically investigated by using Mathcad computer program. Experiments were carried out at different inlet tempera

APA, Harvard, Vancouver, ISO, and other styles

20

Bessard, Gilles. "Caractérisation de matériaux de découplage à l'aide d'un tube à ondes progressives." Valenciennes, 1995. https://ged.uphf.fr/nuxeo/site/esupversions/e4a4a16f-0fa8-410d-80df-f3a641cf6b61.

Full text

Abstract:

L'efficacité croissante dans le domaine des basses fréquences des moyens de détection des cibles sous-marines implique une amélioration des matériaux d'isolement ou de découplage. Cette amélioration passe par la connaissance précise des caractéristiques acoustiques des matériaux employés. Dans ce contexte, l'objet de ce mémoire est la mise au point d'une méthode de caractérisation de ces matériaux utilisable à la pression atmosphérique mais susceptible d'être transposée à quelques dizaines de bars. Pour cela, un tube d'acier rempli d'eau et fermé à chacune de ses extrémités par un transducteur

APA, Harvard, Vancouver, ISO, and other styles

21

Hrycaj, Philippe. "Modélisation de la croissance de cavités et du contact unilatéral en viscoplasticité : Application au laminage perçage." Valenciennes, 1991. https://ged.uphf.fr/nuxeo/site/esupversions/cbbf12c1-7d8c-4d44-bd00-53f61a2576af.

Full text

Abstract:

Lors des grandes transformations thermoviscoplastiques des aciers, on observe souvent sous l'influence des conditions de contact, une détérioration progressive avec l'apparition de zones ou les microcavités se développent plus rapidement qu'ailleurs. La prévision de la croissance des cavités est obtenue à partir d'un potentiel viscoplastique s'exprimant en fonction des contraintes. Des schémas implicites sont proposés pour le calcul de la déformation, de la température et de la fraction volumique de cavités. Le contact unilatéral tridimensionnel est modélisé par une méthode implicite de pénali

APA, Harvard, Vancouver, ISO, and other styles

22

Mon, Mi Sandar. "Numerical Investigation of Air-Side Heat Transfer and Pressure Drop in Circular Finned-Tube Heat Exchangers." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola&quot, 2009. http://nbn-resolving.de/urn:nbn:de:swb:105-26331.

Full text

Abstract:

A three-dimensional numerical study is performed to investigate the heat transfer and pressure drop performance on the air-side of circular finned tube bundles in cross flow. New heat transfer and pressure drop correlations for the air-cooled heat exchangers have been developed with the Reynolds number ranging from 5000 to 70000. The heat transfer and pressure drop results agree well with several existing experimental correlations. In addition, the influence of the geometric parameters on the heat transfer and pressure drop are studied in detail and their results discussed. The numerical flow

APA, Harvard, Vancouver, ISO, and other styles

23

Mishani, Siamak. "Investigation of fatigue failure in composite versus steel coiled tube for application in mine site drilling." Thesis, Curtin University, 2017. http://hdl.handle.net/20.500.11937/59665.

Full text

Abstract:

Composite coiled tubing could be an economic alternative to the use of steel for exploration drilling due to its potentially greater reliability and higher fatigue life. This PhD study investigated the fatigue life of steel versus composite tubes using both numerical modelling and laboratory scale tests. Results were validated by statistical analysis and confirmed that composite tubing has a higher fatigue life, and potentially opens up a new market place for composite drill pipe.

APA, Harvard, Vancouver, ISO, and other styles

24

Russeil, Serge. "Expérimentation et modélisation des transferts de chaleur et de masse dans un canal bidimensionnel : Application aux géométries complexes des échangeurs de chaleur." Valenciennes, 1997. https://ged.uphf.fr/nuxeo/site/esupversions/045d17fe-3635-42b9-82b0-d1f122d8226d.

Full text

Abstract:

L'étude menée concerne la condensation d'air humide dans un canal bidimensionnel vertical. L'application directe de cette étude est la prédiction des performances thermiques des batteries de tubes à ailettes planes continues fonctionnant en régime de condensation. Une étude bibliographique présente les phénomènes physiques fondamentaux mis en jeu et les méthodes de calcul des échangeurs thermiques. Elle montre l'intérêt d'employer des codes de calcul pour traiter dans ces géométries complexes : - les transferts combines de chaleur et de masse en présence de gaz incondensables, - et le couplage

APA, Harvard, Vancouver, ISO, and other styles

25

Venkatesan, Yaamunan. "Effect of maldistribution and flow rotation on the shell side heat transfer in a shell and tube heat exchanger." Thesis, Wichita State University, 2011. http://hdl.handle.net/10057/3990.

Full text

Abstract:

A numerical analysis of flow maldistribution and shell side flow on heat in a shell and tube heat exchanger is presented. The flow field at the inlet and in the headers was obtained by solving conservation equations of mass and momentum by employing k-ε turbulence model. As the flow maldistribution in the header affects the heat transfer performance of the STHE, pressure drop and velocity distribution of the fluid inside the header were analyzed. Two types of headers were considered with varying header length for a Reynolds number range of 1000 to 3000. As the header length was increased to 15

APA, Harvard, Vancouver, ISO, and other styles

26

Baldwin, Stephen. "A study of heat and fluid flow phenomena on the gas side of circular-tube plate-fin heat exchangers." Thesis, Coventry University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329038.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Wang, Shenqiu. "Grainy head target genes in epithelial morphogenesis and wound healing." Doctoral thesis, Stockholm : The Wenner-Gren Institute, Stockholm University, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-38377.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Havelková, Pavla. "Predikce průběhu teplot pracovních látek ve výměníku tepla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230832.

Full text

Abstract:

This master’s thesis is focused on the description and processing of the cell method, which is generally recommended for prediction of fluids temperature profiles in heat exchanger. In the thesis the basic equations for calculating heat transfer are presented and is also described the current situation in the field of computational prediction of fluids temperature profiles in heat exchangers. The cell method is solved by using the software Maple and is applied to the specific case of industrial heat exchangers. The results obtained by the cell method are compared with the results obtained by e

APA, Harvard, Vancouver, ISO, and other styles

29

Billaud, Joseph. "Gazéification de la biomasse en réacteur à flux entrainé : études expérimentales et modélisation." Thesis, Ecole nationale des Mines d'Albi-Carmaux, 2015. http://www.theses.fr/2015EMAC0010/document.

Full text

Abstract:

Ce travail porte sur l'étude de la gazéification de biomasse en Réacteur à Flux Entrainé (RFE), dans le contexte du développement de procédés pour la production de biocarburants de deuxième génération. L'objectif de cette thèse est de modéliser les différents phénomènes qui régissent la conversion de la biomasse dans des conditions représentatives d'un RFE. La pyrolyse et la gazéification de particules de hêtre de taille comprise entre 315 et 415 µm ont été étudiées entre 800 et 1400°C en four à chute de laboratoire. L'influence de l'ajout de H2O, de CO2 et de O2 sur les produits de gazéificat

APA, Harvard, Vancouver, ISO, and other styles

30

Lapinskas, Vytautas. "Sklandytuvo atakos ir slydimo kampų matavimo metodų tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110615_175706-86724.

Full text

Abstract:

Baigiamajame magistro darbe atliekamas sklandytuvo atakos ir slydimo kampo matavimo metodų tyrimas. Pirmoje darbo dalyje apžvelgiami atakos kampo matuokliai: virvutė, pritvirtinta ant stiklinio gaubto, atakos – slydimo kampo matuoklis su vėjarodžiu ir Pitoto vamzdelio tipo daviklis. Davikliai palyginami, aprašomi jų privalumai ir trūkumai lyginant su kitais davikliais. Antroje dalyje aprašomi alfa ir beta kampų matavimo metodai: matavimas vamzdelio tipo davikliu ir metodas, kai nenaudojami specialūs atakos, slydimo kampo davikliai. Toliau apžvelgiami veiksniai, turintys įtakos matavimo tikslum

APA, Harvard, Vancouver, ISO, and other styles

31

Rapant, Radek. "Stavebně technologický projekt Domova důchodců Brno - Tuřany." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240485.

Full text

Abstract:

The thesis is elaborated on the basis of project of the retirement home Brno – Tuřany. The thesis is focused on building technology solutions of construction of the retirement home Brno – Tuřany. The main part of the thesis deals with realization of rough construction DCI, especially with detailed description and draft solution for making the ceilings and elliptical reinforced concrete staircase (tube). Apart from the impressive architectonic draft solution of main staircase of the building, it will be interesting to deal with progress of the whole construction that is divided into three dilat

APA, Harvard, Vancouver, ISO, and other styles

32

Mohammadi, Koorosh [Verfasser], and Hans [Akademischer Betreuer] Müller-Steinhagen. "Investigation of the effects of baffle orientation, baffle cut and fluid viscosity on shell side pressure drop and heat transfer coefficient in an e-type shell and tube heat exchanger / Koorosh Mohammadi. Betreuer: Hans Müller-Steinhagen." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2011. http://d-nb.info/1017972672/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Lecharlier, Aurore. "Caractérisation des composés trace dans le biogaz et biométhane : développement d'une méthode d'échantillonnage, de préconcentration in situ et d'analyse." Electronic Thesis or Diss., Pau, 2022. http://www.theses.fr/2022PAUU3008.

Full text

Abstract:

Afin d’accroître les connaissances sur les composés traces présents dans les biogaz et biométhane et de garantir l’intégration durable de ces gaz dans le mix énergétique européen, une chaîne analytique complète a été développée dont un élément central est un dispositif d’échantillonnage de terrain permettant la préconcentration directe in situ des composés traces en prélevant ces gaz à leur pression actuelle (≤ 200 bara). Les composés traces ciblés dans ce travail incluent : alcanes (linéaires, cycliques, polycycliques), aromatiques, terpènes, alcènes, espèces organiques halogénées, espèces or

APA, Harvard, Vancouver, ISO, and other styles

34

KULÍK, Jan. "Reakce vybraných odrůd brambor na aplikaci listových hnojiv." Master's thesis, 2014. http://www.nusl.cz/ntk/nusl-174187.

Full text

Abstract:

The aim of the experiment was to evaluate the reaction of chosen potato varieties to the application of leaf fertilizers. The speed of their action and, together with combination with other interventions (common application with fungicides), and also the economics of their application belong among the advantage of leaf fertilizer application. In 2012 and 2013 there was an experiment established in 380 m above the sea level. In this experiment the effect of application of urea solution, Lignohumate, and Energen Fructus was evaluated in the varieties with a different length of vegetation period

APA, Harvard, Vancouver, ISO, and other styles

35

HOŠKOVÁ, Jana. "Porovnání produkční schopnosti vybraných odrůd brambor v ekologickém a konvenčním systému pěstování." Master's thesis, 2015. http://www.nusl.cz/ntk/nusl-188401.

Full text

Abstract:

The dissertation investigated on the base of smallparcelled land the production abilities of chosen varieties of potatoes with different lenght of vegetation period in conventional and ecological system. The aim was to evaluate the yield of the tubers, weight of tubers, number of tubers under bunch, number of tubers with a proportion of market value tubers, amount of starch and amount of nitrates on the base of reached results of one years field experiment based on ecological and conventional grown system. The chosen varieties were divided in germinated and non germinated variantions in small

APA, Harvard, Vancouver, ISO, and other styles

36

ZAJÍC, David. "Uplatnění foliální aplikace roztoku močoviny a hořké soli při pěstování konzumních brambor." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-251965.

Full text

Abstract:

The thesis is focused on the application of foliar fertilizers in the cultivation of potatoes. The evaluation was based on one-year small-plot trial plot, which manages Selekta Pacov. An attempt was based on a comparison of revenue, market share tuber size and number of tubers in a bunch of potatoes, which were fertilized solutions bitter mangnesium sulfate and urea. The results obtained in 2015 largely reflected the drought which occurred during potato vegetation. Of backed results showed that foliar fertilization influences crop, size of table potatoes and starch content.

APA, Harvard, Vancouver, ISO, and other styles

37

Yang, Renn Woei, and 楊任偉. "Preparation and characterization of micron-size carbon tubes." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/84603820896963484489.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Shen, Rong Shou, and 沈榮壽. "The study of stock sizes, soil types and plant growth regulators on tuber production and flowering of polianthes tuberosa cv. double." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/51813310379707386941.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Liu, Vincent, and 劉吉雄. "Preparation and Search of the Micro-sized Silica Tubes." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/04644640526791656703.

Full text

Abstract:

碩士<br>國立清華大學<br>化學系<br>89<br>By utilizing a new approach to fabricate carbon tubes, conducting polymer(PAni), sol-gel reaction and following thermal treatments, the well-organized silica tubes were successfully synthesized. Electrochemical and chemical appraoches were used in the period of developing silica tubes. SEM, TEM, EDS, ESCA, ATRIR, PXRD, TGA and other instruments were utilized to investigate chemical and structural properties. The products are amorphous, tubular, porous silica.

APA, Harvard, Vancouver, ISO, and other styles

40

Sousa, Mara Daniela da Silva. "Estimating the ideal endotracheal tube size in children using ultrasound." Master's thesis, 2020. https://hdl.handle.net/10216/128732.

Full text

Abstract:

O controlo da via aérea em crianças representa ainda um grande desafio das áreas de anestesia e medicina intensiva. Em termos anatómicos, a via aérea de uma criança apresenta diferenças consideráveis em comparação com a via aérea de um adulto. Uma vez que um tubo endotraqueal inadequadamente grande ou pequeno pode ter consequências adversas para o doente, estimar o tamanho ideal do tubo endotraqueal é um passo essencial no controlo da via aérea. Atualmente, os métodos mais usados para estimar o tamanho do tubo baseiam-se em fórmulas que usam parâmetros demográficos e antropométricos como a ida

APA, Harvard, Vancouver, ISO, and other styles

41

Sousa, Mara Daniela da Silva. "Estimating the ideal endotracheal tube size in children using ultrasound." Dissertação, 2020. https://hdl.handle.net/10216/128732.

Full text

Abstract:

O controlo da via aérea em crianças representa ainda um grande desafio das áreas de anestesia e medicina intensiva. Em termos anatómicos, a via aérea de uma criança apresenta diferenças consideráveis em comparação com a via aérea de um adulto. Uma vez que um tubo endotraqueal inadequadamente grande ou pequeno pode ter consequências adversas para o doente, estimar o tamanho ideal do tubo endotraqueal é um passo essencial no controlo da via aérea. Atualmente, os métodos mais usados para estimar o tamanho do tubo baseiam-se em fórmulas que usam parâmetros demográficos e antropométricos como a ida

APA, Harvard, Vancouver, ISO, and other styles

42

Chen, Jia-Hou, and 陳珈后. "Effects of the Sand Particle Size upon Glomus spinosum Spores Production and Semi-Aseptic Synthesis of Tuber pseudoexcavatum." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/94645320253354646001.

Full text

Abstract:

碩士<br>國立臺灣大學<br>森林學研究所<br>91<br>purposes of this study were to（1）compare the spores production of Glomus spinosum cultured with Cunninghamia lanceolata in different sand particle sizes and（2）perform semi-aseptic synthesis of Tuber pseudoexcavatum on Cyclobalanopsis glauca（Thunb.）Qerst. From the results of experiment 1：（1）it was shown that the amounts of Mg＋2、 Ca＋2 and SO4－2 in substrate were significantly different（P＜0.05）among different sand particle sizes. In terms of Mg＋2 amounts in sand, the order was sand particle size 150-50 µm＞greater than 420 µm＝210-150 µm＝420-210 µm. In

APA, Harvard, Vancouver, ISO, and other styles

43

Huang, Ting-Xi, and 黃庭曦. "Treatment of Indole-3-Butyric Acid on Stem Cutting Seedling Affects Tuber Size and Quantity of Sweet Potato." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/rc7zvn.

Full text

Abstract:

碩士<br>國立中興大學<br>農藝學系所<br>106<br>Sweet potato (Ipomoea batatas L.) is rich in nutritional value and easy to cultivate, can be cooked into a variety of food, convenience store roasted sweet potato is one of the most popular, but the size of the potato has a certain limit, 150-400 grams of the most appropriate size, this The weight of the sweet potato can also be sold to a higher price, but the farmers in the planting of sweet potato, the size of sweet potato is often unable to control, In this experiment, the application of Indole-3-butyric acid (IBA) in c.v. Tainong 57 and c.v. Tainong 66 sweet

APA, Harvard, Vancouver, ISO, and other styles

44

Ping-ChouChen and 陳柄州. "Study on Heat Transfer Characteristics of Elliptical Fin and Tube Heat Exchanger with Various Tube Size." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/7uwx2u.

Full text

Abstract:

碩士<br>國立成功大學<br>機械工程學系<br>105<br>This study applies inverse method and Icepak to determine the heat transfer and fluid flow characteristics of elliptical fin and tube exchanger with various fin spacing, flow velocity and various tube size. Since the distribution of the heat transfer coefficient on the fin is not uniform, the plate-fin is divided into several subregions and the heat transfer coefficient in each subregion is assumed to be unknown constant.Then using inverse method with measured temperature data to predict and analyze the average heat transfer coefficient on each subregion and t

APA, Harvard, Vancouver, ISO, and other styles

45

Lee, Jyh-Tsung, and 李志聰. "Preparation and Characterization of Micrometer-Sized Carbon Tubes and their Application for Electron Field Emission." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/12129635250117187504.

Full text

Abstract:

博士<br>國立清華大學<br>化學系<br>89<br>The main objects of this thesis include: (a) preparation of carbon tubes via a novel chemical approach, (b) investigation of their formation mechanism, (c) studying how the graphitization treatments affect their properties, and (d) application of these carbon tubes for electron field emitting. Partially ordered micrometer-sized carbon tubes of several centimeters in length have been prepared via a new chemical approach by the pyrolysis of composite fibers consisting of a thermally more stable polypyrrole (PPy) skin layer and a PET core. The wall thicknes

APA, Harvard, Vancouver, ISO, and other styles

46

Trimiño, Rincon Luis Fernando. "Analysis and Performance of Adhesively Bonded Crush Tube Structures." Thesis, 2012. http://hdl.handle.net/10012/7069.

Full text

Abstract:

Lighter structural and energy absorbing materials are essential to increase fuel efficiency in transportation systems and have provided a motivation to investigate the use of new joining techniques based on the use of high strength and high tenacity adhesives. Current joining techniques, such as spot-welding, limit the possible weight reduction that can be achieved if lighter sections, dissimilar materials and/or novel geometries were to be used. Adhesive materials can address many limitations of current joining techniques. To take advantage of the available numerical codes for the simulatio

APA, Harvard, Vancouver, ISO, and other styles

47

Sahoo, Anup Kumar. "MODELS FOR ASSESSMENT OF FLAWS IN PRESSURE TUBES OF CANDU REACTORS." Thesis, 2009. http://hdl.handle.net/10012/4329.

Full text

Abstract:

Probabilistic assessment and life cycle management of engineering components and systems in a nuclear power plant is intended to ensure safe and efficient operation of energy generation over its entire life. The CANDU reactor core consists of 380-480 pressure tubes, which are like miniature pressure vessels that contain natural uranium fuel. Pressure tubes operate under severe temperature and radiation conditions, which result in degradation with ageing. Presence of flaws in a pressure tube makes it vulnerable to delayed hydride cracking (DHC), which may lead to rupture or break-before-leak s

APA, Harvard, Vancouver, ISO, and other styles

48

Liu, Kuan-hung, and 劉冠宏. "Numerical Analysis of Evaporation Performance in a Shell-and-Tube Heat Exchanger with Refrigerant Flowing through the Shell-Side or Tube-Side." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/63030940938256285020.

Full text

Abstract:

碩士<br>逢甲大學<br>航太與系統工程所<br>100<br>The purpose of this paper is to analyze the evaporation performance of refrigerant pass-through in a shell-and-tube heat exchanger’s shell-side or tube-side by a Rankine cycle via numerical simulation. The working fluids include refrigerant R-245fa and water. This study use VOF (Volume of Fluid) method to calculate the surface of liquid-phase and gas-phase. Because of the phase change would cause the density change, this study also considers the effects of gravity. The blueprint of shell-and-tube heat exchanger geometry of this study’s original model is from th

APA, Harvard, Vancouver, ISO, and other styles

49

Chou, Yi-Hsin, and 周以炘. "Performance Analysis and Optimization of Rectangular Expansion Chamber with Multiple Internal Connected and Side Inlet/Outlet tubes." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/19286146937609991674.

Full text

Abstract:

碩士<br>大同大學<br>機械工程學系(所)<br>101<br>In this thesis, the acoustic professional boundary element analysis software SYSNOISE (Boundary element method, BEM) method as well as the multiple physical quantities coupled numerical analysis software COMSOL Multiphysics Finite Element (Finite element method, FEM) analysis are adopted. The primary purpose of the research is to assess the acoustical performance of the side inlet/outlet plenums and the multi-fin plenums. 　　The plenums will be planned and modelled. The plenum’s model will be built by using the computer-aided software. Thereafter, this plenum’s

APA, Harvard, Vancouver, ISO, and other styles

50

Chantziantoniou, Konstantinos. "An X-ray tube focal spot size measurement technique using a digital imaging computer method." 1991. http://hdl.handle.net/1993/17336.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!