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Dissertations / Theses on the topic 'Draw materials'

Author: Grafiati

Published: 10 December 2022

Last updated: 31 July 2025

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1

Jianfeng, Wang. "Principles of the draw-bend springback." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1080237228.

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2

Wang, Jianfeng. "Principles of the draw-bend springback test." Columbus, Ohio : Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1080227128.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xvii, 167 p.; also includes graphics (some col.). Includes abstract and vita. Advisor: Robert H. Wagoner, Dept. of Materials Science and Engineering. Includes bibliographical references (p. 158-167).

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3

Edrington, Sarah. "THE LIMITS & EFFECTS OF DRAW ON PROPERTIES AND MORPHOLOGY OF PAN-BASED PRECURSOR AND THE RESULTANT CARBON FIBERS." UKnowledge, 2017. http://uknowledge.uky.edu/me_etds/89.

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The process, structure, and property relationship of PAN fiber as a precursor to carbon fiber was studied. The limitations of stable spinning and property improvement associated with hot draw in solution spinning were found and quantified. Conditions were varied to generated precursor fiber up to the limit of draw, from which actual samples were collected for thermal conversion to carbon fiber. Samples of PAN and subsequent carbon fiber were characterized using tensile testing and x-ray analysis. The effects of draw on modulus and break stress, as well as the orientation of the crystalline str

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4

Guilleaume, Christina, Alexander Brosius, and Ali Mousavi. "Investigation of Alternative Polymer Composite Materials for Forming Applications." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-235022.

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In diesem Paper werden Untersuchungen eines Tiefziehwerkzeugs aus Mineralguss vorgestellt. Der Grund für die Verwendung von Mineralguss als alternativen Werkstoff für schnelle Werkzeuge liegt in den relativ geringen Initialkosten zur Herstellung und seiner Eignung für Kleinserien und Prototypenversuche. Ähnliche Konzepte mit Werkzeugen aus Mineralguss haben gezeigt, dass eine entscheidende Grenze in der Tribologie und dem bei diesem Werkstoff großen Oberflächenverschleiß liegt. Daher fokussiert das vorliegende Paper auf die Ergebnisse der Analyse verschiedener Mineralgussmischungen unter Anwen

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5

Garapati, Sriharsha. "Analytical and Numerical Modeling of Assembly Procedures of Steel Fulcra of Bascule Bridges." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4490.

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To model shrink-fitting in metal components, an analytical model for two long compound cylinders with temperature dependent material properties and interference between them is developed for calculating transient temperatures and stresses. A finite element model is developed for the same geometry which incorporated the temperature dependent material properties. A convergence study is performed on the finite element and analytical model. The finite element model is validated by comparing the approximations of finite element model with the analytical solution. In an assembly procedure of fulcrum

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6

Hossain, MD Tanvir. "Mobility in granular materials upon dynamic loading." Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/22976.

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This Thesis explores the mechanisms controlling the mobility of large objects embedded in granular materials. The goal is to establish which loading conditions lead to their motion and to identify the underlying physical mechanisms. To this aim, laboratory experiments were conducted using a canonical mobility test, which involves uplifting a plate embedded in a dry granular packing vertically. The experimental conditions were varied in order to evidence the effect of the presence of water in the granular packing, and the effect of dynamic loadings whereby the plate is moved at different veloci

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7

Athani, Shivakumar. "Granular drag forces under dynamic loadings." Thesis, The University of Sydney, 2019. https://hdl.handle.net/2123/21247.

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This Thesis examines the mechanical response of large objects -called intruders or anchors that are embedded into a granular packing and subjected to dynamic loadings. By using a numerical approach based on a discrete element method, the study focuses on a canonical test comprising a plate-shaped intruder, placed horizontally and being uplifted vertically. The research is articulated into three projects. The first project considers steady and quasi-static loading conditions, whereby the intruder is uplifted at a constant velocity. Its purpose is to validate the numerical method against previo

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8

Chung, Kyu-Ha. "Composite compliant coatings for drag reduction utilizing low modulus high damping silicone rubber." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/15263.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1985.<br>MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE.<br>Includes bibliographical references.<br>by Kyu-Ha Chung.<br>Ph.D.

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9

Elsayad, Kareem. "Understanding the insulating phases of disordered materials through crosstalk and Coulomb drag experiments." [Bloomington, Ind.] : Indiana University, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3290773.

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Thesis (Ph.D.)--Indiana University, Dept. of Physics, 2007.<br>Title from dissertation home page (viewed May 28, 2008). Source: Dissertation Abstracts International, Volume: 68-11, Section: B, page: 7391. Adviser: John P. Carini.

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10

Grena, Benjamin (Benjamin Jean-Baptiste). "Phase separation in thermally-drawn fibers: From porous domains to structured Si-Ge spheres." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111324.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 149-160).<br>The preform-to-fiber thermal drawing method is a versatile process that allows the fabrication of polymer or glass-based fibers with complex multimaterial internal structures, which grant them functions ranging from optical transmission to chemical detection. However, while a wide range of materials have been successfully drawn in various phases - such as metals, semiconductors, and ferr

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11

Fekkai, Zakia. "Dimensional stability of biaxially drawn PET : effects of processing and material composition." Thesis, Loughborough University, 1991. https://dspace.lboro.ac.uk/2134/32890.

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Biaxial orientation of PET for the production of high strength films for demanding applications, such as slot liners for electrical motors and sound and audio visual tapes, is a well established process. More recently biaxial orientation of PET has been utilised for the production of carbonated beverages, bottles and cans for processed food packaging to achieve high strength and impact resistance. These containers, however, are not suitable for hot filling and high temperature sterilization purposes owing to the lack of dimensional stability.

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12

Gupta, Anurag. "The artificially blunted leading edge concept for aerothermodynamic performance enhancement." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/12442.

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13

Gispert, Pellicer Esther. "El cinema com a recurs i matèria d'estudi: l'experiència de Drac Màgic." Doctoral thesis, Universitat de Girona, 1996. http://hdl.handle.net/10803/7979.

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La tesi titulada "El cinema com a recurs i matèria d'estudi: l'experiència de Drac Màgic", consta de quatre parts clarament diferenciades, però complementàries entre si, que responen a la voluntat d'orientar la introducció del cinema en l'àmbit de l'educació. L'objectiu fonamental de la primera part de la tesi és el de crear un marc teòric en el que conflueixin les recerques i les opinions de diversos autors, provinents del camp de la comunicació o bé especialistes en l'àmbit de l'educació, que s'han interrogat, des de la seva particular parcel·la d'estudi, sobre aspectes relacionats amb la pr

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14

Bechert, Mathias [Verfasser], Dirk W. [Gutachter] Schubert, and Benoit [Gutachter] Scheid. "Influence of Process and Material Parameters on the Draw Resonance Instability / Mathias Bechert ; Gutachter: Dirk W. Schubert, Benoit Scheid." Erlangen : FAU University Press, 2017. http://d-nb.info/114323202X/34.

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15

Liu, Ning. "Microstructure and mechanical properties of cold drawn steel wires." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2012. https://ro.ecu.edu.au/theses/512.

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Cold drawn eutectoid steel wires have been widely used for a variety of applications, such as suspension bridges, steel cords for automobile tires, and springs. Much research has been done to increase their mechanical strength. With advances in modern production technology, both the drawing speed and the quality of drawn steels have been enhanced. After a careful literature survey, it is obvious that some issues are still controversial. As Y.S. Yang, J.G. Bae and C.G. Park mentioned, the lamellar spacing, thickness and volume fraction of cementites have all reached the nanometer regime, and th

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16

Gass, Evan M. "Anisotropy in Drawn and Annealed Copper Tube." Ohio University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou153503217197025.

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17

Morais, José Eduardo Vasconcelos de. "Estudo experimental e numérico de antena ressoadora dielétrica (DRA) baseada em Sr2CoNbO6." reponame:Repositório Institucional da UFC, 2014. http://www.repositorio.ufc.br/handle/riufc/10843.

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MORAIS. J. E. V. Estudo experimental e numérico de antena ressoadora dielétrica (DRA) baseada em Sr2CoNbO6. 2014. 99 f. Dissertação (Mestrado em Engenharia de Teleinformática) - Centro de Tecnologia, Universidade Federal do Ceará, Fortaleza, 2014.<br>Submitted by Marlene Sousa (mmarlene@ufc.br) on 2015-02-27T18:05:08Z No. of bitstreams: 1 2014_dis_jevmorais.pdf: 4712454 bytes, checksum: ee61668e4d5aeb05b3eb3200bbb89387 (MD5)<br>Approved for entry into archive by Marlene Sousa(mmarlene@ufc.br) on 2015-03-04T16:17:42Z (GMT) No. of bitstreams: 1 2014_dis_jevmorais.pdf: 4712454 bytes, checksum: ee

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18

Jörgensdotter, Freja. "Bli en miljönär med klimatsmarta drag i vardagen : En informationsbroschyr med fokus på miljö, konsumtion och material." Thesis, Linnéuniversitetet, Institutionen för design (DE), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-63782.

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Abstrakt Under 2015 behandlades 4 703 790 ton hushållsavfall på Sveriges återvinningscentraler, det motsvarar 477 kilo per person/år. Ofta kastar vi fullt fungerande saker. När det gäller livsmedel så kastar vi utan att ens lukta eller smaka, många gånger före det att bäst-före-datum har gått ut. Utan att vi reflekterar över miljökonsekvenserna köper vi produkter i dubbla förpackningar, plaster, folier och pappersförpackningar, utan att de extra emballagen egentligen fyller någon större funktion. Vi kör flera vändor till återvinningscentraler med vårt trädgårdsavfall och tidningarna åker rakt

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19

Kalagotla, Dilip. "Modeling Particle Drag in Accelerating Flows with Implications for SBLI in PIV - A Numerical Analysis." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1523630352322552.

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20

Kumbier, Alana. "Ephemeral Material: Developing a Critical Archival Practice." Columbus, Ohio : Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1236198205.

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21

Freese, Samuel Henrique. "Estudo da capacidade de proteção anti-corrosiva de óleos de processo em materiais trefilados." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/75758.

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Aços carbono trefilados possuem como características excelentes propriedades mecânicas, estabilidade dimensional e bom acabamento superficial. Porém, para fornecimento deste material, um dos cuidados necessários é a proteção temporária contra a corrosão atmosférica, que pode ser definida como um processo resultante de reações químicas e/ou eletroquímicas, pelas quais metais e ligas se deterioram quando submetidos à ação climática. Para evitar / retardar este processo, usualmente é utilizada a aplicação de uma película de óleos formadores de barreira, protegendo o material base. Buscando avalia

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22

Rubenking, Samuel Kim. "Dual Mode Macro Fiber Composite-Actuated Morphing Tip Feathers for Controlling Small Unmanned Aircraft." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/78433.

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The transition of flight from manned to unmanned systems has led to new research and applications of technology within the field that, until recently, were previously thought to be unfeasible. The industry has become interested in alternative control surfaces and uses for smart materials. A Macro Fiber Composite (MFC), a smart material, takes advantage of the piezoelectric effect and provides an attractive alternative actuator to servos in the Small Unmanned Aerial Systems (SUAS) regime of flight. This research looks to take MFC actuated control surfaces one step further by pulling inspiration

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23

Ma, Ning. "Theory and modeling of microstructural evolution in polycrystalline materials solute segregation, grain growth and phase transformation /." Connect to this title online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1111774761.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xvii, 181 p.; also includes graphics (some col.). Includes bibliographical references (p. 168-181). Available online via OhioLINK's ETD Center

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24

Soroudi, Azadeh. "Melt Spun Electro-Conductive Polymer Composite Fibers." Doctoral thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-3590.

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One interesting approach is the development of conductive polymer composite fibers for innovative textile applications such as in sensors, actuators and electrostatic discharge. In this study, conductive polymer composite fibers were prepared using several different blends containing conductive components: a conjugated polymer (polyaniline-complex) and/or carbon nanotubes. Different factors such as processing parameters, the morphology of the initial blends and the final fibers, fiber draw ratio and material selection were studied separately to characterize their effects on the fiber propertie

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25

Narvaez, Javier Artemio. "Evaluation of Alumina Nanofluids and Surfactant Drag Reducing Solutions to Improve Heat Transfer for Aircraft Cooling Systems." University of Dayton / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=dayton154479500350447.

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26

Egunov, Aleksandr. "Strain-engineering of thin polymer films : a novel route for the development of functional materials and microfluidic devices." Thesis, Mulhouse, 2015. http://www.theses.fr/2015MULH1619.

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Les deux systèmes de création d’une contrainte dans les films polymériques ont été développés, chacun répondant à un gradient de gonflement du polymère dans la direction normale au film. Ce gonflement peut être provoqué soit par la présence d’un gradient de densité de réticulation dans la direction normale à la surface (films de poly(4-vinylpyridine) réticulés par UV ou dans les films de chitosan réticulés thermiquement et ioniquement ; ou soit par une pénétration asymétrique de vapeur de solvant dans le film (ici le polydiméthylsiloxane oxydé en surface). Un troisième système polymérique auto

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27

Laffargue, Johann. "Etude et modélisation des instabilités du procédé de soufflage de gaine." Phd thesis, École Nationale Supérieure des Mines de Paris, 2003. http://pastel.archives-ouvertes.fr/pastel-00000432.

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28

Strandlund, Henrik. "Simulation of diffusional processes in alloys : techniques and applications." Doctoral thesis, Stockholm, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-399.

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29

Sung, Ji-Hyun. "The Causes of “Shear Fracture” of Dual-Phase Steels." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1268039436.

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30

Bindas, Erica Bindas. "EFFECT OF TEMPERATURE, STRAIN RATE, AND AXIAL STRAIN ON DIRECT POWDER FORGED ALUMINUM-SILICON CARBIDE METAL MATRIX COMPOSITES." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1530871866585058.

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31

Machala, Petr. "Návrh potrubního řetězového dopravníku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416427.

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This master thesis deals with the construction design of two different pipeline drag chain conveyors for transport of wheat and sewage sludge. The first part describes the operation principle and the main parts of this conveyor. The examples of designs from several manufacturers follow. Next part is devoted to determining the resistance to movement in individual sections of the transport route. Thesis continues with design proposals of both variants of conveyors, including suitable technological and strength calculations. The outputs of this work are also assembly drawings of these two conveyo

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32

Abbasi, Baharanchi Ahmadreza. "Development of a Two-Fluid Drag Law for Clustered Particles Using Direct Numerical Simulation and Validation through Experiments." FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/etd/2489.

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This dissertation focused on development and utilization of numerical and experimental approaches to improve the CFD modeling of fluidization flow of cohesive micron size particles. The specific objectives of this research were: (1) Developing a cluster prediction mechanism applicable to Two-Fluid Modeling (TFM) of gas-solid systems (2) Developing more accurate drag models for Two-Fluid Modeling (TFM) of gas-solid fluidization flow with the presence of cohesive interparticle forces (3) using the developed model to explore the improvement of accuracy of TFM in simulation of fluidization flow of

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33

Tevissen, Etienne. "Méthodologie d'étude et modélisation du transport de solutes en milieux poreux naturels : application à la migration du chrome dans la nappe alluviale du Drac (Isère)." Vandoeuvre-les-Nancy, INPL, 1993. http://www.theses.fr/1993INPL089N.

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On présente une méthodologie d'étude du transport de solutés interactifs en milieu poreux naturel, basée sur l'expérimentation et la modélisation. La modélisation s'effectue grâce à un code de calcul couplant hydrodynamique et géochimie, des améliorations y sont apportées avec la prise en compte de corrections d'activité et surtout, avec la simulation d'effets cinétiques chimiques ou diffusionnels. La méthodologie proposée a été appliquée au cas de migration du chrome dans la nappe alluviale du Drac (Isère). L'étude du site expérimental associée à la connaissance générale de la chimie du chrom

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34

Withrow, Travis P. "Computational Modeling of Atom Probe Tomography." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1525763934302517.

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35

Zuanetti, Bryan. "Plate Impact Experiments for Studying the Dynamic Response of Commercial-Purity Aluminum at Temperatures Approaching Melt." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1557132337419911.

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36

Asp, Grönhagen Klara. "Phase-field modeling of surface-energy driven processes." Doctoral thesis, KTH, Metallografi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11036.

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Surface energy plays a major role in many phenomena that are important in technological and industrial processes, for example in wetting, grain growth and sintering. In this thesis, such surface-energy driven processes are studied by means of the phase-field method. The phase-field method is often used to model mesoscale microstructural evolution in materials. It is a diffuse interface method, i.e., it considers the surface or phase boundary between two bulk phases to have a non-zero width with a gradual variation in physical properties such as energy density, composition and crystalline struc

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37

Bessa, Kleiber Lima de. "Redução de arrasto por adição de polímeros em escoamento pulsátil laminar e turbulento em leitos arteriais caudais de ratos normotensos e hipertensos e tubos rígidos." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/3/3150/tde-12092008-140246/.

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Nesse trabalho, foi analisada a redução de arrasto, a partir da utilização de duas bancadas experimentais, onde uma delas está situada no laboratório de Mecânica dos Fluidos (EPUSP) e a outra, no laboratório de Fisiologia Vascular (ICB-USP). A redução de arrasto foi investigada a partir do uso dos seguintes polímeros: poliacrilamida 1822S e 1340S, polietileno glicol (PEG4000) e óxido de polietileno (Polyox WSR-301). O comportamento reológico das soluções poliméricas do PEG4000 e das poliacrilamidas foi adquirido experimentalmente, enquanto do Polyox WSR-301 foi obtido da literatura. Esses polí

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38

Marou, Alzouma Ousseini. "Durabilité tribologique de matériaux pour insert de dents de tunnelier." Thesis, Ecully, Ecole centrale de Lyon, 2015. http://www.theses.fr/2015ECDL0042.

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La fréquence des opérations de maintenance lors de l’excavation du sol par les tunneliers est problématique pour les entreprises de travaux publics. Ces opérations de maintenance engendrent des temps morts onéreux et nécessitent l'intervention d'opérateurs dans des conditions de travail hyperbares. Une des raisons aux nombreuses interventions humaines pour la maintenance est l’endommagement des outils racleurs du sol excavé (dents) qui sont placés sur la tête du tunnelier. Ces outils sont sujets à l’usure compte tenu de l’abrasivité des différents milieux qu’ils rencontrent. Le but de cette th

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Vergnet, Hadrien. "Génération d'ondes THz avec deux nanostructures lamellaires : les microcavités d'AlGaAs et les films minces de PtSe2." Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS473.

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La gamme Thz du spectre électromagnétique est un domaine historiquement difficile d'accès. Durant les trois dernières décennies de nombreux progrès techniques ont été réalisés dans la fabrication de sources et de détecteurs de rayonnement THz. Ces avancées ont permis de découvrir tout le potentiel applicatif des fréquences THz mais on manque encore de sources compactes et performantes. Cette thèse est consacrée à l'étude de la génération d'ondes THz par deux nanostructures lamellaires. La première structure étudiée est une microcavité réalisée à l'aide de couches nanométriques d'alliage d'AlGa

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40

Vieluf, Maik. "Hochauflösende Rutherford-Streuspektrometrie zur Untersuchung von ZrO2-Schichtwachstum im Anfangsstadium." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-38113.

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Die vorliegende Arbeit entstand im Rahmen einer Kooperation des Forschungszentrums Dresden-Rossendorf mit Qimonda Dresden GmbH & Co. OHG. Mithilfe der hochauflösenden Rutherford-Streuspektrometrie (HR-RBS) wurden das Diffusionsverhalten und Schichtwachstum von ZrO2 auf SiO2 und TiN im Anfangsstadium untersucht. Auf Grund der exzellenten Tiefenauflösung von 0,3 nm an der Oberfläche stand die Analyse von Konzentrationsprofilen in ultradünnen Schichten, respektive an deren Grenzflächen im Vordergrund. Zur qualitativen Verbesserung der Messergebnisse wurde erstmals ein zweidimensionaler positi

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41

Rabiee, Hesamoddin. "Gas responsive microgels as novel draw agents for forward osmosis desalination." Thesis, 2018. http://hdl.handle.net/2440/114507.

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Forward Osmosis (FO) process is a low-energy membrane separation technique, which has attracted increasing attention recently for desalination applications. Unlike Reverse Osmosis, which needs a high-pressure pump; FO works via natural osmotic pressure provided by a draw solution. Therefore, development of efficient draw solutions is quite important. Polymeric stimuli-responsive microgels/hydrogels are promising options as they can be recovered by applying the proper stimulus heating or gassing processes. The temperature-responsive microgels/hydrogels have been developed for FO application in

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42

"Forward Osmosis Desalination Using Thermoresponsive Hydrogels as Draw Agents; An Experimental Study." Master's thesis, 2019. http://hdl.handle.net/2286/R.I.53871.

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abstract: Hydrogel polymers have been the subject of many studies, due to their fascinating ability to alternate between being hydrophilic and hydrophobic, upon the application of appropriate stimuli. In particular, thermo-responsive hydrogels such as N-Isopropylacrylamide (NIPAM), which possess a unique lower critical solution temperature (LCST) of 32°C, have been leveraged for membrane-based processes such as using NIPAM as a draw agent for forward osmosis (FO) desalination. The low LCST temperature of NIPAM ensures that fresh water can be recovered, at a modest energy cost as compared to ot

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Yu, Da-Wei David. "Turbulent pipe flow drag reduction with narrow distribution polystyrene materials : a test of drag reduction theories." Thesis, 1998. http://hdl.handle.net/1957/34137.

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Mowery, Daniel Michael. "Investigation of the structure of cold -drawn high -density polyethylene using solid-state NMR." 2002. https://scholarworks.umass.edu/dissertations/AAI3068580.

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In this dissertation, the cold-drawing response of a commercial high-density polyethylene (HDPE) resin has been studied using solid-state nuclear magnetic resonance (NMR) spectroscopy and variety of other complementary techniques. Melt-crystallized, isotropic samples of the HDPE have been drawn to various extensions at ambient temperature (21°C) and at a relatively slow strain rate (0.0013 s−1). Using solid-state NMR, the first unambiguous evidence for a major morphological component intermediate to the crystalline and amorphous domains in the cold-drawn HDPE microstructure has been found. Emp

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"Understanding the insulating phases of disordered materials through crosstalk and Coulomb drag experiments." INDIANA UNIVERSITY, 2008. http://pqdtopen.proquest.com/#viewpdf?dispub=3290773.

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Hoppe, Richard Peter. "Partial characterization of extruded collagen tubes with varied material deposition and orientation based on rotation rate and linear draw speed." Thesis, 2001. http://library1.njit.edu/etd/fromwebvoyage.cfm?id=njit-etd2001-019.

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Liang, Ting-Hua, and 梁庭華. "A Study of High Dielectric Constant Material TiO2 Deposited by Electron Beam Evaporation for DRAM Capacitors." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/04098952902900584893.

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碩士<br>國立交通大學<br>電子研究所<br>84<br>In this work, the effects of electrode materials (W, WN, Ta, TaN, Mo, and TiN)on the leakage current of TiO2 films were studied. The optimum electrode materials for high- and low- temperature processes (800 ℃ and 400 ℃) are shown. No obvious correlation between ψms and Vcrit (voltage at 10E-6 A/ cm2)is found in our experimental results. We also discussed post-TiO2-deposition annealing effect using TaN top electrode. The effects of annealing

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Bojjawar, Girish. "Effect of Cobalt Content on Microstructure and Strength in Severely Cold Drawn Ni-Co wires." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/5779.

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The future upcoming technologies in aerospace, transport and nuclear industries demand materials with superior mechanical properties that are also economically viable. The quest to achieve theoretical strength of material by various techniques has been the aim of many material scientists across the globe. The strength of a material depends on the resistance experienced by dislocations during plastic deformation and in a polycrystalline material, it has been found that strength varies inversely with grain size (d) according to Hall-Petch relationship σ=σ0+KHP d−0.5 where σ is the yield stress

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Tasi, M. S., and 蔡明憲. "A Study of High Dielectric Constant Material Barium Strontium Titanite (BaxSr1-xTiO3) for Giga Bit DRAM Stroage Capacitor Applications." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/52288061739048398386.

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碩士<br>國立交通大學<br>電子研究所<br>84<br>As device dimensions are scaled down into the deep-submicron regime, the demand for small capacitor area while still maintaining a certain critical charge for DRAM capacitors become more stringent. Ta2O5 films are suitable for 256M to 1G bit DRAM application. However, higher dielectric constant materials are required for 1 Gbit DRAMs and beyond. Recently the BST (BaxSr1-xTiO3) film has attracted great attentions due to its high dielectric constant, low lea

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lin, mark, and 林俊賢. "A Study of Advanced DRAM Capacitor Structure with Rugged Poly-Si Electrode and High Dielectric Constant Material & Process Optimization for Improved Retention Characteristic." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/62652947292432198404.

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博士<br>國立交通大學<br>電子工程系<br>88<br>Abstract The main goal of this thesis is to improve the refresh time of DRAM cell. It can be accomplished by two approaches. The first approach is to increase the storage capacitance of the cell, while the other approach is to reduce the junction leakage current of DRAM cell. For increased storage capacitance, polycrystalline silicon film with a rugged surface (i.e., rugged poly-Si) was applied. The rugged-poly was deposited by a single-wafer rapid thermal chemical vapor deposition (RTCVD) system, suitable for 12-inch wafer fabrication. In this thes

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