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Tesis sobre el tema "Capacitors"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

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1

Wynne, Edward McFaddin. "Determination of the Shelf Life of Aluminum Electrolytic Capacitors." Thesis, University of North Texas, 2002. https://digital.library.unt.edu/ark:/67531/metadc3104/.

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The aluminum electrolytic capacitor is used extensively in the electric utility industry. A factor limiting the storage of spare capacitors is the integrity of the aluminum oxide dielectric, which over time breaks down contributing to a shelf life currently estimated at one nuclear power electric generating station to be approximately five years. This project examined the electrical characteristics of naturally aged capacitors of several different styles to determine if design parameters were still within limits. Additionally, the effectiveness of a technique known as “Reforming” was examine

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2

Bereza, Bill Carleton University Dissertation Engineering Electrical. "A switched-capacitor circuit technique used to measure capacitor mismatch and explore capacitor and opamp nonlinearity." Ottawa, 1988.

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3

Yang, Fan. "Characterization of HFO2 Capacitors." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/YangF2003.pdf.

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4

Cousins, Jesse. "Simulation of the Variability in Microelectronic Capacitors having Polycrystalline Dielectrics with Columnar Microstructure." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/CousinsJL2003.pdf.

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5

Donahoe, Daniel Noel. "Moisture in multilayer ceramic capacitors." College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/2189.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2005.<br>Thesis research directed by: Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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6

Larsson, Oscar. "Polyelectrolyte-Based Capacitors and Transistors." Doctoral thesis, Linköpings universitet, Institutionen för teknik och naturvetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-67852.

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Polymers are very attractive materials that can be tailored for specific needs and functionalities. Based on their chemical structure, they can for instance be made electrically insulating or semiconducting with specific mechanical properties. Polymers are often processable from a solution, which enables the use of conventional low-cost and high-volume manufacturing techniques to print electronic devices onto flexible substrates. A multitude of polymer-based electronic and electrochemical devices and sensors have been developed, of which some already has reached the consumer market. This thesi

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7

Wang, Tong. "Electrospun carbon nanofibers for electrochemical capacitor electrodes." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/22563.

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Thesis (Ph. D.)--Textile and Fiber Engineering, Georgia Institute of Technology, 2007.<br>Committee Chair: Satish Kumar; Committee Member: Anselm Griffin; Committee Member: John D. Muzzy; Committee Member: Ravi Bellamkonda; Committee Member: Rina Tannenbaum.

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8

Muthana, Prathap. "Design of high speed packages and boards using embedded decoupling capacitors." Diss., Available online, Georgia Institute of Technology, 2007, 2007. http://etd.gatech.edu/theses/available/etd-05102007-121240/.

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Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2008.<br>Prof Madhavan Swaminathan, Committee Chair ; Prof Rao Tummala, Committee Co-Chair ; Prof David Keezer, Committee Member ; Dr. Mahadevan Iyer, Committee Member ; Prof Suresh Sitaraman, Committee Member ; Prof William A. Doolittle, Committee Member.

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9

Száraz, Ildikó. "Chemical reactions in aluminium electrolytic capacitors /." Luleå, 2003. http://epubl.luth.se/1402-1544/2003/05.

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10

Krause, Andreas. "Ultrathin CaTiO3 Capacitors: Physics and Application." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-144522.

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Scaling of electronic circuits from micro- to nanometer size determined the incredible development in computer technology in the last decades. In charge storage capacitors that are the largest components in dynamic random access memories (DRAM), dielectrics with higher permittivity (high-k) were needed to replace SiO2. Therefore ZrO2 has been introduced in the capacitor stack to allow sufficient capacitance in decreasing structure sizes. To improve the capacitance density per cell area, approaches with three dimensional structures were developed in device fabrication. To further enable scaling

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11

Sallaz, Valentin. "Si-integrated capacitors for energy storage." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASF022.

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Avec la nécessité de toujours plus miniaturiser l’électronique, les composants doivent aujourd’hui être compatibles avec le processus d’empilement 3D. Murata Integrated Passive Solutions (MIS) propose alors la technologie « Passive Integrated Connecting Substrate » (PICS), consistant à intégrer sur silicium des composants passifs. L’objectif, dans notre cas, est la réalisation de micro-supercondensateurs (MSCs) à fortes densités d’énergie (~10 J.cm⁻³) pour répondre aux besoins de stockage d’énergie. Cette étude s’est articulée autour de quatre points clés : (1) l’implémentation d’un électrolyt

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12

SINGH, VINIT. "HIGH TEMPERATURE CAPACITORS FOR VOLTAGE MULTIPLIERS." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1085685724.

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13

Reece, Richard O. "An investigation into structural electrochemical capacitors." Thesis, University of Surrey, 2016. http://epubs.surrey.ac.uk/811563/.

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This project investigated methods for manufacture of electrochemical capacitor, or supercapacitor, -based structural energy storage devices. Investigations were made into introducing structural components to supercapacitor designs, attempting to produce a cell with inherent load-bearing capability and mechanical strength. Design- led developments were also conducted into the combination of supercapacitors with composite materials, in particular embedding energy storage within sandwich panel composites and fibre reinforced polymer composites. Electrochemical and mechanical testing and analysis

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14

Jan, Saeed Ullah. "Dielectrics for high temperature capacitors applications." Thesis, University of Leeds, 2015. http://etheses.whiterose.ac.uk/11528/.

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Most of the dielectric materials developed in this thesis were relaxor dielectrics with very broad, frequency dependent peaks in relative permittivity-temperature, εr – T, plots. In some cases, plateau-like permittivity plots with very wide temperature ranges of stable permittivity varying by no more than ±15 % were obtained through compositional engineering of the relaxor base material using high levels of lattice substitution of cations of different charge and size to the host lattice. The solid solution series (1–x)Na0.5Bi0.5TiO3 – xBa0.8Ca0.2TiO3 [(1–x)NBT–xBCT] was studied initially: it s

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15

Saborío, González Maricruz. "Developmet of flexible electrodes and lightweight capacitors." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/471808.

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This work has focused on the study and development of hierarchically, flexible electrodes and lightweight capacitor using as a source of flexibility. the y-polyglutamic acid (y-PGA) and as an electroactive polymer the poly(3,4-ethylenedioxythiophene) (PEDOT) in composite with alumina (Al2O3),Initially, the PEDOT/Al2O3 composite electroactive film was studied under different monomers: clay proportion and considering the amphoteric behavior of the Al2O3, the analysis of the pH affectation was done. Further, the multi-step in situ polymerization was studied. The experiments demonstrated that th

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16

Nilsson, Johan, and Christoffer Fredriksson. "Planeringsverktyg för ABB Capacitors : Planering av körsekvens." Thesis, Uppsala University, Industrial Technology, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-126762.

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<p>ABB Capacitors is looking to introduce LEAN within their organization. The purpose of this research is to suggest ways to improve the production planning in order to facilitate the company’s production processes. This should be done in accordance with the LEAN concept.</p><p>Today, ABB will produce two of the customers’ orders at the same time. To avoid major disturbances it is important to work with production planning to create a balanced production mix. During the planning it is important to consider that each order may create different “bottlenecks” in production line. Therefore, the ai

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17

Arikan, Mustafa. "Electrical Transport In Metal-oxide-semiconductor Capacitors." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605489/index.pdf.

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The current transport mechanisms in metal-oxide-semiconductor (MOS) capacitors have been studied. The devices used in this study have characterized by current-voltage analyses. Physical parameter extractions and computer generated fit methods have been applied to experimental data. Two devices have been investigated: A relatively thick oxide (125 nm) and an ultra-thin oxide (3 nm) MOS structures. The voltage and temperature dependence of these devices have been explained by using present current transport models.

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18

Miao, Bing. "Hafnium based MIM capacitors for hostile environments." Thesis, University of Newcastle Upon Tyne, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.506721.

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19

New, David Allen 1976. "Double layer capacitors : automotive applications and modeling." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28337.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.<br>Includes bibliographical references (p. 223-227).<br>This thesis documents the work on the modeling of double layer capacitors (DLCs) and the validation of the modeling procedure. Several experiments were conducted to subject the device under test to a variety of charging/discharging profile and temperatures in an effort to simulate the various conditions such a device might encounter in an automotive type application. High and low current charging profiles were performed for bo

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20

Collins, John L. "Radiation effects in metal-oxide-semiconductor capacitors." Thesis, Aston University, 1987. http://publications.aston.ac.uk/8078/.

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An investigation has been undertaken into the effects of various radiations on commercially made Al-SiO2-Si Capacitors (MOSCs). Detailed studies of the electrical and physical nature of such devices have been used to characterise both virgin and irradiated devices. In particular, an investigation of the nature and causes of dielectric breakdown in MOSCs has revealed that intrinsic breakdown is a two-stage process dominated by charge injection in a pre-breakdown stage; this is associated with localised high-field injection of carriers from the semiconductor substrate to interfacial and bulk cha

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21

Cagle, Clint William. "Charging kinetics of electric double layer capacitors." Connect to this title online, 2009. http://etd.lib.clemson.edu/documents/1263402254/.

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22

Langham, Jacob. "Spiral pinballs, cardiac tissue and deforming capacitors." Thesis, University of Warwick, 2017. http://wrap.warwick.ac.uk/90330/.

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‘Spiral pinballs’ are resonantly drifting spiral waves in excitable media that reflect from boundaries. Instead of reflecting at an angle equal to the one at which they approach the boundary—like a ray of light reflecting from a mirror—they reflect in a preferred direction. This invites comparison with a number of other complex systems that behave as nonspecular billiards, including bouncing droplets on a vibrated bath, swimming microorganisms and segments of chemical waves. In the first part of this thesis, we study the trajectories of spiral pinball reflections. A catalogue of interesting be

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23

Premathilake, Dilshan V. "Vertically Oriented Graphene Electric Double Layer Capacitors." W&M ScholarWorks, 2017. https://scholarworks.wm.edu/etd/1516639673.

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Vertically oriented graphene nanosheets (VOGN) synthesized by radio frequency plasma enhanced chemical vapor deposition (RF-PECVD) have been fabricated as electrical double layer capacitors (EDLCs). The relatively open morphology of the films provided good frequency response, but had limited capacitance compared to present day activated carbon EDLCs. The objective of this research was to improve the capacitance of these films to a commercially viable level while maintaining sufficient frequency response for AC filtering. The growth of VOGN on Ni and Al substrates has been studied in this work.

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24

Agrawal, Richa. "Hybrid Electrochemical Capacitors: Materials, Optimization, and Miniaturization." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3680.

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With the ever-advancing technology, there is an incessant need for reliable electrochemical energy storage (EES) components that can provide desired energy and power. At the forefront of EES systems are electrochemical capacitors (ECs), also known as supercapacitors that typically have higher power and superior cycle longevity but lower energy densities than their battery counterparts. One of the routes to achieve higher energy density for ECs is using the hybrid EC configuration, which typically utilizes a redox electrode coupled with a counter double-layer type electrode. In this dissertatio

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25

Villamil, Susan Simmons. "Impedance characteristics and grain boundary effects in titanate-based multilayer ceramic capacitors." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/94507.

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The major goal of this study was to gain a better understanding of the effects that grain boundaries have on conduction in multilayer ceramic (MLC) capacitors. Electrical measurements were made so that current-voltage curves and impedance plots could be constructed. It was found that the current-voltage curves of new COG and X7R multilayer ceramic capacitors are both ohmic at low voltages and super-ohmic at intermediate voltages. Ohmic behavior prevails at high voltages for both types. Such behavior can be attributed to grain boundaries. Grain boundary resistance was clearly exhibited by X

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26

Schunke, J. N. "Intrinsic degradation mechanisms of barium titanate based multilayer ceramic capacitors." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/53086.

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A study was conducted into the intrinsic degradation behavior of X7R and Z5U capacitors. The major goals of this research were: 1) to determine current-voltage, activation energy and leakage current characteristics for such capacitors. 2) to investigate how these characteristics change with degradation; 3) to investigate possible correlations between observed behavior and capacitor microstructure or composition. Examination of capacitor microstructures revealed large differences in grain morphology and electrode spacings. The development of a color gradient between positive and negative

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27

Wade, Timothy Lawrence. "High power carbon based supercapacitors /." Connect to thesis, 2006. http://repository.unimelb.edu.au/10187/439.

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Energy storage devices are generally evaluated on two main requirements; power and energy. In supercapacitors these two performance criteria are altered by the capacitance, resistance and voltage. (For complete abstract open document)

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28

Anderson, Matthew Wilamowski Bogdan M. "Wide range tunable transconductance filters." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SPRING/Electrical_and_Computer_Engineering/Thesis/Anderson_William_22.pdf.

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29

Uz, Eda. "Design And Implementation Of Thyristor Switched Shunt Capacitors." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611616/index.pdf.

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This research work deals with the analysis, design and implementation of thyristor switched plain capacitor banks and thyristor switched shunt filter banks. Performances of various thyristor switched capacitor (TSC) topologies are also investigated by simulations. The theoretical findings have been verified by carrying out experimental work on two prototypes implemented within the scope of this research work, one is a wye-connected laboratory prototype and the other is a delta-connected application prototype integrated to some of the SVCs existing in Turkish Coal Enterprise s Plants. The advan

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30

Sundberg, Nicklas. "Efficiency Improvements with Super Capacitors in Mechatronic Systems." Thesis, KTH, Maskinkonstruktion (Inst.), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-100714.

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The production industry is getting more and more automated and that implies higher energy consumption. With the increasing awareness of the earth limited resources and the increasing energy prices, energy conservation grows in relevance, both due to cost reduction and environmental benefits. One way to conserve energy is to optimize the energy usage within the business and reduce the losses. Regenerative braking is already in use today for this purpose in vehicles. The aim of this thesis is to investigate how regenerative braking can be fitted into the production industry and what adaptations

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31

Prasertchoung, Sanwarit. "Pulse switching and scaling effects in ferroelectric capacitors." College Park, Md. : University of Maryland, 2006. http://hdl.handle.net/1903/4248.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2006.<br>Thesis research directed by: Material Science and Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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32

Bhat, Shreyas. "Salinity (conductivity) sensor based on parallel plate capacitors." [Tampa, Fla] : University of South Florida, 2005. http://purl.fcla.edu/usf/dc/et/SFE0001381.

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33

Lao, Zhuo Jin. "Metal oxides as electrode materials for electrochemical capacitors." Access electronically, 2006. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20060726.101327/index.html.

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34

Alvi, Farah. "Synthesis and Characterization of Nanocomposites for Electrochemical Capacitors." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/3948.

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Presently there are deep concerns over the environmental consequences and the consumption of non-renewable energy sources, with the accelerated greenhouse effect, triggered enormous interest in the use of renewable energy sources e.g., solar, hydropower, wind and geothermal. However the intermittent nature of harvesting renewable energy sources has recently gained considerable attention in the alternative reliable, cost effective, and environmentally friendly energy storage devices. The supercapacitor and lithium ion batteries are considered more efficient electrical energy storage devices tha

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35

Ali, Richard A. "Reliability and characterization of high voltage power capacitors." Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/41346.

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Approved for public release; distribution is unlimited.<br>Alternative energy products are an increasingly common sight on military bases in the United States. Energy product reliability affects the sustainability and cost-effectiveness of these systems, which must be tested by outside entities to ensure quality. The purpose of this thesis is to perform component level reliability testing on a high voltage power capacitor used in an electrical vehicle solar charging system. A component level characterization was performed to better understand the physical attributes of these capacitors. This i

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36

Bishay, A. G. "Capacitance of planar capacitors and discontinuous metal films." Thesis, City University London, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354899.

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37

Haj, Hassan Nooshin L. "Advanced materials for lithium batteries and electrochemical capacitors." Thesis, Loughborough University, 2009. https://dspace.lboro.ac.uk/2134/15179.

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This thesis describes research carried out in the area of materials electrochemistry. The general goal was to develop and test advanced materials that might improve the performance of real-world electrochemical systems. Particular systems of interest were lithium thionyl chloride batteries, lithium sulphur batteries, and carbon-based electrochemical capacitors. Developments are reported in all three cases. Materials electrochemistry is an interdisciplinary field that investigates the relationship between the structure, properties, processing and electrochemical performance of novel materials.

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38

Gupta, Sahil. "Structure-Property Relationships in Polymers for Dielectric Capacitors." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1395682393.

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39

DeLibero, Michael L. "MEASUREMENT CIRCUITS AND MODELING TECHNIQUES FOR TITANIUM CAPACITORS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=case1438640389.

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40

Mussi, Toschi Vitoria. "Lead-free ferroelectric ceramics for multilayer ceramic capacitors." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLC089.

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De nos jours, la consommation des condensateurs céramiques multicouches (MLCCs) augmente en raison de leur efficacité et leur fiabilité. La miniaturisation résultant dans une plus grande dissipation volumique de chaleur et les nouvelles applications demandent des MLCCs qui peuvent travailler de 300 à 350°C, au-delà des limites actuelles de 200 – 250°C. De plus, les exigences environnementales augmentent également avec les réglementations REACH et RoHS qui interdisent l'utilisation du plomb en Europe. Il est donc impératif de créer des nouveaux matériaux sans plomb capables de répondre aux nouv

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41

Krishnamurthy, Kumar. "Supercritical extraction of binder from multilayer ceramic capacitors." Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/5658.

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Thesis (M.S.)--University of Missouri-Columbia, 2008.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 12, 2009) Vita. Includes bibliographical references.

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42

Adams, Timothy B. "Barrier layer capacitors based on CaCu₃Ti₄O₁₂." Thesis, University of Sheffield, 2006. http://etheses.whiterose.ac.uk/10520/.

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Calcium-Copper-Titanate (CCTO) is one of a class of non-ferroelectric, highly tilted Perovskite-structured oxides. Theoretical values of permittivity for these materials are low and fairly typical for non-ferroelectrics, yet these materials received considerable attention when reports of extremely high permittivity (in excess of 10,000) emerged, with one study on CCTO published in Science that attempted to assign the unusual behaviour to an as yet unknown exotic polarisation mechanism. This thesis proves that the high permittivity is actually extrinsic in origin and originates from a barrier l

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43

Orozco, montes Maileth. "Implémentation d'un générateur de nanoparticules en phase gazeuse fondé sur la pulvérisation cathodique magnétron pour la synthèse de films minces nanocomposities céramique/nanoparticules métalliques." Thesis, Limoges, 2017. http://www.theses.fr/2017LIMO0082/document.

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Ces travaux de thèse portent sur l’étude d’un générateur de nanoparticules (NPs) en phase gazeuse basé sur la pulvérisation cathodique magnétron. La mise en oeuvre d’un spectromètre d’émission optique et d’une microbalance à quartz a permis d’observer l’influence des paramètres du procédé (nature et débit des gaz, courant cathodique, configuration magnétique) sur les espèces présentes dans le plasma et la vitesse de dépôt des NPs. Ceci a conduit à une meilleure compréhension du procédé et à l’établissement d’un point de fonctionnement. Des analyses par microscopique électronique en transmissio

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44

Chan, Siu-wo. "Design, control and application of battery-ultracapacitor hybrid systems." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/hkuto/record/B38816660.

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45

Yue, Jireh Jon-Kai. "Study of high K polymers for integral capacitor applications." Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/19036.

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46

Pak, Hee Chul. "Two distributed capacitance models /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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47

Islas, Michael E. "Efficiency improvement techniques for high voltage capacitor carging [sic] methods." Orlando, Fla. : University of Central Florida, 2009. http://purl.fcla.edu/fcla/etd/CFE0002899.

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48

Imam, Afroz M. "Condition Monitoring of Electrolytic Capacitors for Power Electronics Applications." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14472.

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The objective of this research is to advance the field of condition monitoring of electrolytic capacitors used in power electronics circuits. The construction process of an electrolytic capacitor is presented. Descriptions of various kinds of faults that can occur in an electrolytic capacitor are discussed. The methods available to detect electrolytic capacitor faults are discussed. The effects of the capacitor faults on the capacitor voltage and current waveforms are investigated through experiments. It is also experimentally demonstrated that faults in the capacitor can be detected by monit

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49

Wang, Yushu. "Thin-film trench capacitors for silicon and organic packages." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42741.

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The continuous trend towards mega-functional, high-performance and ultra-miniaturized system has been driving the need for advances in novel materials with superior properties leading to thin components, high-density interconnect substrates and interconnections. Power supply and management is becoming a critical bottleneck for the advances in such mega-functional systems because power components do not scale down with the rest of the system resulting in bulky and stand-alone power modules. Amongst the power components, thin film capacitors are considered the most challenging to integrate becau

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50

Zubieta, Bernal Luis Eduardo. "Characterization of double-layer capacitors for power electronics applications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ28861.pdf.

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