Relevant bibliographies by topics / Electrical leakage / Dissertations / Theses
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Dissertations / Theses on the topic 'Electrical leakage'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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1

Ibrahem, Amr. "Leakage Current Detection and Protection for Electrical Railway Systems." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1501106215129042.

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2

Wang, Frank Yi-Fei. "Preventing data leakage in web services." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/120410.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 77-86).<br>Web services like Google, Facebook, and Dropbox are a regular part of users' lives. However, using these applications can cause sensitive data leakage both on the server and client. On the server-side, applications collect and analyze sensitive user data to monetize it. Consequently, this sensitive data can leak through data breaches or can be accessed by malicious service provid
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3

Smith, Adam (Adam Davidson) 1977. "Maintaining secrecy when information leakage is unavoidable." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28744.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.<br>Includes bibliographical references (p. 109-115).<br>(cont.) We apply the framework to get new results, creating (a) encryption schemes with very short keys, and (b) hash functions that leak no information about their input, yet-paradoxically-allow testing if a candidate vector is close to the input. One of the technical contributions of this research is to provide new, cryptographic uses of mathematical tools from complexity theory known as randomness extractors.<br>Sharing a
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4

Lakshmikanthan, Preetham. "Novel energy-efficient leakage current minimization techniques for CMOS VLSI circuits." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2007. http://wwwlib.umi.com/cr/syr/main.

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5

Markov, Stanislav Nikolaev. "Gate leakage variability in nano-CMOS transistors." Thesis, University of Glasgow, 2009. http://theses.gla.ac.uk/771/.

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Gate leakage variability in nano-scale CMOS devices is investigated through advanced modelling and simulations of planar, bulk-type MOSFETs. The motivation for the work stems from the two of the most challenging issues in front of the semiconductor industry - excessive leakage power, and device variability - both being brought about with the aggressive downscaling of device dimensions to the nanometer scale. The aim is to deliver a comprehensive tool for the assessment of gate leakage variability in realistic nano-scale CMOS transistors. We adopt a 3D drift-diffusion device simulation approach
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6

Kao, James T. (James Ting Yu). "Subthreshold leakage control techniques for low power digital circuits." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/8566.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.<br>Includes bibliographical references (p. 273-277).<br>Scaling and power reduction trends in future technologies will cause subthreshold leakage currents to become an increasingly large component of total power dissipation. As a result, new techniques are needed in order to provide high performance and low power circuit operation. This dissertation develops new circuit techniques that exploit dual threshold voltages and body biasing in order to reduce subthreshold leakage curren
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7

Zhou, JianBin. "Electrical Characteristics of Aged Composite Insulators." Thesis, Queensland University of Technology, 2003. https://eprints.qut.edu.au/16086/1/JianBin_Zhou_Thesis.pdf.

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Composite insulators are widely being used in power industry to alternate traditional porcelain-based insulators for their advantages, including better pollution performance, low maintenance cost, light weight, compact line design. However, due to the short application history and experience, the degradation of composite insulators in natural environment is a big concern for the power utilities. The knowledge on the degradation of composite insulators is being studied world wide. The methods to assess the working conditions of composite insulators are being studied and created. In Queensland
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8

Zhou, JianBin. "Electrical Characteristics of Aged Composite Insulators." Queensland University of Technology, 2003. http://eprints.qut.edu.au/16086/.

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Composite insulators are widely being used in power industry to alternate traditional porcelain-based insulators for their advantages, including better pollution performance, low maintenance cost, light weight, compact line design. However, due to the short application history and experience, the degradation of composite insulators in natural environment is a big concern for the power utilities. The knowledge on the degradation of composite insulators is being studied world wide. The methods to assess the working conditions of composite insulators are being studied and created. In Queensla
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9

Prawira, Vincent T. "DIGITALLY CONTROLLED DC OFFSET FOR LO LEAKAGE IN RF TRANSMITTERS." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1243523529.

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10

Calhoun, Benton H. (Benton Highsmith) 1978. "Circuit techniques for subthreshold leakage reduction in a deep sub-micron process." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/87199.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.<br>Includes bibliographical references (p. 115-118).<br>by Benton Highsmith Calhoun.<br>S.M.
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11

Xu, Hao. "Runtime Leakage Control in Deep Sub-micron CMOS Technologies." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1289235760.

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12

Kumar, Akhilesh. "Leakage Power Modeling and Reduction Techniques for Field Programmable Gate Arrays." Thesis, University of Waterloo, 2006. http://hdl.handle.net/10012/766.

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FPGAs have become quite popular for implementing digital circuits and systems because of reduced costs and fast design cycles. This has led to increased complexity of FPGAs, and with technology scaling, many new challenges have come up for the FPGA industry, leakage power being one of the key challenges. The current generation FPGAs are being implemented in 90nm technology, therefore, managing leakage power in deep-submicron FPGAs has become critical for the FPGA industry to remain competitive in the semiconductor market and to enter the mobile applications domain. <br /><br /> I
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13

Fernandes, Romana. "Estimation and Optimization of Leakage Power in the Presence of Process Variations." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1266601588.

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14

Dal, Deniz. "Power Islands a high-level synthesis methodology for reducing spurious switching activity and leakage /." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2006. http://proquest.umi.com/login?COPT=REJTPTU0NWQmSU5UPTAmVkVSPTI=&clientId=3739.

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15

Adefila, Kehinde. "Flow measurement and leakage detection of gaseous CO2." Thesis, University of Kent, 2015. https://kar.kent.ac.uk/49162/.

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In order to combat the climate change caused by increasing emissions of CO2 from industrial processes, Carbon Capture and Storage (CCS) technologies have been accepted worldwide to address these pressing global warming concerns. So as to efficiently manage material and financial losses across the entire stream, accurate accounting and monitoring through fiscal metering of CO2 in CCS transportation pipelines are core and required features for the deployment of CCS technologies. Moreover, these technical requirements are part of the legal compliance schemes and guidelines from various regulatory
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16

Devasthali, Vinayak Sudhakar. "Application of Body Biasing and Supply Voltage Scaling Techniques for Leakage Reduction and Performance Improvements of CMOS Circuits." NCSU, 2007. http://www.lib.ncsu.edu/theses/available/etd-12172007-225105/.

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The efficiency of body biasing technique is evaluated in 90-nm process technology for regular and low threshold voltage devices. A new leakage monitor circuit for detecting an optimum reverse body bias voltage is designed. The simulation results shows that the monitor circuit accurately tracks the leakage currents within +/-5% of the actual leakage current values. The standby leakage reduction in static CMOS circuits using reverse body biasing is presented. The results indicate that the reverse body biasing is more beneficial for high speed circuits using low threshold voltage devices. For cir
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17

Shi, Danni. "Robustness Issues of Run-time Leakage Control in Nano-scale Technologies." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1282054251.

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18

Iglesias, Santiso Vanessa. "CAFM Nanoscale electrical properties and reliability of HfOz based gate dielectrics in electron devices : Impact of the polycrystallization and resistive switching." Doctoral thesis, Universitat Autònoma de Barcelona, 2012. http://hdl.handle.net/10803/107890.

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La evolución de los dispositivos MOS ha conllevado una reducción de tamaño de los mismos con el fin de mejorar sus prestaciones. Sin embargo, este continuo escalado se ha topado con un límite físico: la delgada capa aislante de SiO2 (entre otros), que fuerza la búsqueda de nuevas alternativas que permitan abastecer al exigente mercado tecnológico. En las dimensiones en las que actualmente se trabaja, del orden de nanómetros, los fenómenos cuánticos adquieren gran importancia siendo, entre otros, las corrientes de fuga uno de los principales escollos con los que se ha de lidiar. Estas corriente
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19

Tevi, Tete. "Enhancement of Supercapacitor Energy Storage by Leakage Reduction and Electrode Modification." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6148.

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Supercapacitors have emerged in recent years as a promising energy storage technology. The main mechanism of energy storage is based on electrostatic separation of charges in a region at the electrode-electrolyte interface called double layer. Various electrode materials including carbon and conducting polymers have been used in supercapacitors. Also, supercapacitors offer high life cycle and high power density among electrochemical energy storage devices. Despite their interesting features, supercapacitors present some disadvantages that limit their competitivity with other storage devices in
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20

Grop, Henrik. "Investigation of AC electrical machine stators with fractional conductor windings." Licentiate thesis, KTH, School of Electrical Engineering (EES), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-12472.

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<p>Industry always searches the least expensive solution for a machine design. Therefore, there is a need for integrating different customer ordered machines within the same frame, while keeping the foundation of the mechanical design constant. Since the winding design in electrical machines is essential for the performance and relatively inexpensive to adapt, it can be used to meet different customer demands. This thesis investigates the foundations of a special winding named fractional conductor winding. An expression for winding factors for certain kinds of these windings is developed. Calc
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21

Pandey, Lopa M. S. "Liner characterisation and leak detection using electrical resistivity techniques." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2018. https://ro.ecu.edu.au/theses/2159.

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The resistivity of soil ranges from 7-15 Ωm for Leachate #1 to 20-50 Ωm for Leachate #2. The resistivity decreases with an increase in the proximity to the leak point. Furthermore, the resistivity values obtained with water were nearly 10 times the values observed with landfill leachate as the leaching liquid. Based on the resistivity profiles of soil as observed at different time intervals, the method is found to be effective in determining leakages in the liner. The test results have also been presented for the leakage of Bayer liquor obtained from aluminium manufacturing company in Western
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22

Danish, Siddiqui Muhammad, and Suhasini Gopi. "MATLAB suite for removing the capacitive leakage effect from EBI Spectroscopic data." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-20406.

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Electrical Bioimpedance (EBI) is the opposition offered by the biological material to theflow of electric current. Nowadays EBI technology is widely used for total body compositionand body fluid distribution.In this project a software suite is developed by using the GUI tool of Matlab, thissoftware is meant to help to remove artefacts from the EBI measurement and to visualize theEBIS measurements and the processing performed on them.Hook effect is one of the major artefacts found in EBI measurements, which createsproblems in any analysis. To eliminate the Hook effect some methods are followed.
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23

Wang, Yichun. "LEAKAGE CURRENT REDUCTION OF MOS CAPACITOR INDUCED BY RAPID THERMAL PROCESSING." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_theses/640.

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With the MOSFET scaling practice, the performance of IC devices is improved tremendously as we experienced in the last decades. However, the small semiconductor devices also bring some drawbacks among which the high gate leakage current is becoming increasingly serious. This thesis work is focused on the of gate leakage current reduction in thin oxide semiconductor devices. The method being studied is the Phonon Energy Coupling Enhancement (PECE) effect induced by Rapid Thermal Processing (RTP). The basic MOS capacitors are used to check improvements of leakage current reduction after appropri
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24

Chaturvedi, Vivek. "Leakage Temperature Dependency Aware Real-Time Scheduling for Power and Thermal Optimization." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/870.

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Catering to society’s demand for high performance computing, billions of transistors are now integrated on IC chips to deliver unprecedented performances. With increasing transistor density, the power consumption/density is growing exponentially. The increasing power consumption directly translates to the high chip temperature, which not only raises the packaging/cooling costs, but also degrades the performance/reliability and life span of the computing systems. Moreover, high chip temperature also greatly increases the leakage power consumption, which is becoming more and more significant wit
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25

Vosloo, Wallace L. (Wallace Lockwood). "A comparison of the performance of high-voltage insulator materials in a severely polluted coastal environment." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52625.

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Thesis (PhD)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: The main aim of this research programme was to compare the relative performance of different insulator materials used in South Africa when subjected to a severe marine pollution environment. A test programme and procedure, test facility and instrumentation were established. Some novel instrumentation and monitoring equipment were developed and built specifically for this research programme, supported by data analysing software programs. In order to compare material performance only, all non-material design variables b
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26

Marcusson, Birger. "Magnetic Leakage Fields and End Region Eddy Current Power Losses in Synchronous Generators." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-331182.

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The conversion of mechanical energy to electrical energy is done mainly with synchronous generators. They are used in hydropower generators and nuclear plants that presently account for about 80% of the electric energy production in Sweden. Because of the dominating role of the synchronous generators, it is important to minimize the power losses for efficient use of natural resources and for the economies of the electric power companies and their customers. For a synchronous machine, power loss means undesired heat production. In electric machines, there are power losses due to windage, fricti
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27

Whitman, Daniel J. "The Effect of Winding Curvature and Core Permeability on the Power Losses and Leakage Inductance of High-Frequency Transformers." Wright State University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=wright1624286375555269.

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28

Sezgin, Volkan. "A Novel Algorithm For Prediction Off-line Stator Leakage Inductance And On-line Stator Resistance Of Induction Motors." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/2/12610417/index.pdf.

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In vector control of induction motors it is essential to know the parameters of the motor. Known approaches to this problem have some drawbacks. This thesis work is planned to develop solutions to the existing problems. The proposed solutions will be implemented and tested.
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29

Elombo, Andreas Iyambo. "An evaluation of HTV-SR insulators with different creepage lengths under AC and bipolar DC in marine polluted service conditions." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20236.

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Thesis (MScEng)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: The use of high voltage direct current (HVDC) applications has gained enormous popularity for long distance power transmission. This is due to the lucrative benefits offered by this type of power transmission technology when compared to the traditional high voltage alternative current (HVAC). This new shift in the paradigm of power system design has led to the increased interest in the research that focuses on issues relating to the reliability of power supply associated with HVDC. Amongst such issues, insulation
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30

CARUSO, FRANCESCO. "Study of electrical conduction and defects in high-permittivity metal oxides: experiments and simulation." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/382298.

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Inizialmente studiati dall’industria elettronica per sostituire lo strato isolante di SiO2, gli ossidi metallici sono ora ampiamente utilizzati come strati attivi o isolanti in una moltitudine di dispositivi elettronici. Le proprietà elettriche sono fortemente correlate ai difetti atomici, che generano stati elettronici localizzati all'interno del band gap che fungono da trappole di carica. La comprensione dei meccanismi fisici e del ruolo dei difetti che regolano il trasporto di carica negli ossidi metallici è pertanto della massima importanza per l'ottimizzazione dei dispositivi nanoelettron
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31

Oscarsson, Mattias. "Modelling and design approaches of magnetostrictive actuators." Licentiate thesis, Stockholm : Kungliga Tekniska högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4435.

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32

Kose, Neslihan. "Light Flicker Evaluation Of Electric Arc Furnaces Based On Novel Signal Processing Algorithms." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12611074/index.pdf.

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In this research work, two new flickermeters are proposed to estimate the light flicker caused by electric arc furnaces (EAFs) where the system frequency deviates significantly. In these methods, analytical expressions of the instantaneous light flicker sensation are obtained beginning from a voltage waveform and these expressions are used to obtain a flicker estimation method based on the IEC (International Electrotechnical Commission) flickermeter. First method is a spectral decomposition based approach using DFT to estimate the light flicker. The leakage effect of the DFT algorithm due to f
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33

Ong, Pang-Leen. "PHONON-ENERGY-COUPLING-ENHANCEMENT EFFECT AND ITS APPLICATIONS." UKnowledge, 2008. http://uknowledge.uky.edu/gradschool_diss/652.

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Silicon Oxide/Oxynitride (SiO2/SiON) has been the mainstream material used for gate dielectric for MOS transistors for the past 30 years. The aggressive scaling of the feature size of MOS transistor has limited the ability of SiO2/SiON to work effectively as the gate dielectric to modulate the conduction of current of MOS transistors due to excess leakage current dominated by direct quantum tunneling. Due to this constraint, alternative gate dielectric/high-k is being employed to reduce the leakage current in order to maintain the rate of scaling of MOS transistors. However, the cost involved
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34

Wen, Hao. "IMPROVING PERFORMANCE AND ENERGY EFFICIENCY FOR THE INTEGRATED CPU-GPU HETEROGENEOUS SYSTEMS." VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5664.

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Current heterogeneous CPU-GPU architectures integrate general purpose CPUs and highly thread-level parallelized GPUs (Graphic Processing Units) in the same die. This dissertation focuses on improving the energy efficiency and performance for the heterogeneous CPU-GPU system. Leakage energy has become an increasingly large fraction of total energy consumption, making it important to reduce leakage energy for improving the overall energy efficiency. Cache occupies a large on-chip area, which are good targets for leakage energy reduction. For the CPU cache, we study how to reduce the cache leakag
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35

Han, Lei. "IMPROVEMENT OF SILICON OXIDE QUALITY USING HEAT TREATMENT." UKnowledge, 2012. http://uknowledge.uky.edu/ece_etds/5.

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In decades, the tremendous development of integrated circuits industry could be mostly attributed to SiO2, since its satisfactory properties as a gate dielectric candidate. The effectivity of SiO2 has been challenged since dielectric layer was scaled down below 3nm, when the gate leakage current of SiO2 became unacceptable. Institution to silicon-based CMOS techniques were proposed, but they have their own limitations. Nowadays, materials with high dielectric constants are mainstream gate dielectric materials in industry, but a SiO2 interfacial layer is still necessary to avoid gap between gat
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36

Torres, Salvador Barros. "Métodos para avaliação do potencial fisiológico de sementes de melão." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-23102002-151357/.

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A pesquisa teve como objetivo estudar procedimentos para a condução dos testes de deterioração controlada, envelhecimento acelerado, condutividade elétrica e lixiviação de potássio, procurando-se verificar sua eficiência para identificação de diferentes níveis de vigor de lotes de sementes de melão (Cucumis melo L.). Para tanto, o estudo foi conduzido em duas etapas, utilizando-se cinco lotes de sementes dos híbridos AF-646 e AF-682. Na primeira foram realizados os testes de germinação, primeira contagem de germinação, Método Agroflora, emergência de plântulas em casa de vegetação e estudos es
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Lopes, Magnólia de Mendonça. "Testes de vigor em sementes de quiabeiro /." Jaboticabal : [s.n.], 2007. http://hdl.handle.net/11449/105110.

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Orientador: Rubens Sader<br>Banca: Simone Aparecida Fessel<br>Banca: Marco Eustaquio de Sa<br>Banca: Silvelena Vanzolini Segato<br>Banca: Cibele Chalita Martins<br>Resumo: Essa pesquisa teve como objetivo adequar os testes de deterioração controlada, de envelhecimento acelerado, de condutividade elétrica e de lixiviação de potássio, na avaliação da qualidade fisiológica de sementes de quiabo (Abelmoschus esculentus (L.) Moench). O experimento foi conduzido utilizando-se quatro lotes de sementes de quiabo, cv. Santa Cruz. Na primeira etapa do trabalho foram realizados os testes de germinação, p
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Mohammad, Mostak. "Optimization of Inductive Wireless Charging Systems for Electric Vehicles: Minimizing Magnetic Losses and Limiting Electromagnetic Field Emissions." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1564756659521461.

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39

Tom, Anas. "Physical Layer Algorithms for Interference Reduction in OFDM-Based Cognitive Radio Systems." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5872.

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Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier transmission scheme used in most of the existing wireless standards such as LTE, WiFi and WiMAX. The popularity of OFDM stems from the multitude of benefits it offers in terms of providing high data rate transmission, robustness against multipath fading and ease of implementation. Additionally, OFDM signals are agile in the sense that any subcarrier can be switched on or off to fit the available transmission bandwidth, which makes it well suited for systems with dynamic spectrum access such as cognitive radio systems. Nonethe
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40

Huldén, Pierre. "Conductivity measurement on thick insulating plaque samples." Thesis, KTH, Elektroteknisk teori och konstruktion, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-150956.

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The conductivity is one of the main properties of HVDC cable insulation materials and needs to be evaluated carefully. Since measurement on cables is time consuming, often thin specimens and normal conductivity measurement cells are used to compare the materials. In this way however, the bulk effects will be less represented in the measurement and the results will be less representative. Instead, one needs to perform the measurements on thick plate samples and with higher voltage levels. This work focuses on the conductivity measurements on thick HVDC insulation plate samples subject to a high
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Lopes, Magnólia de Mendonça [UNESP]. "Testes de vigor em sementes de quiabeiro." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/105110.

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Made available in DSpace on 2014-06-11T19:33:36Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-07-27Bitstream added on 2014-06-13T20:25:22Z : No. of bitstreams: 1 lopes_mm_dr_jabo.pdf: 330970 bytes, checksum: aa76d1b477a1c43224f03c7bd118f385 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Essa pesquisa teve como objetivo adequar os testes de deterioração controlada, de envelhecimento acelerado, de condutividade elétrica e de lixiviação de potássio, na avaliação da qualidade fisiológica de sementes de quiabo (Abelmoschus esculentus (L.) Moench). O exper
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42

Fernandes, Bertrand. "Development of a Magnetic Field Sensor System for Nondestructive Evaluation of Reinforcing Steel in Prestressed Concrete Bridge Members." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1352760825.

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43

Cassol, Flavia Danieli Rech. "Comportamento fisiológico e bioquímico de sementes e grãos de feijão durante o armazenamento." Universidade Estadual do Oeste do Parana, 2013. http://tede.unioeste.br:8080/tede/handle/tede/155.

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Made available in DSpace on 2017-05-12T14:46:48Z (GMT). No. of bitstreams: 1 Flavia.pdf: 1168497 bytes, checksum: f97523b328660e75a0d87b8afe672f21 (MD5) Previous issue date: 2013-02-07<br>Beans are one of the foods used to supply the energy needs of the Brazilian diet, so it is necessary that farmers use high seed physiological potential, capable of increasing crop productivity. Thus, the aim of this study was to evaluate the physiological and biochemical changes occurring in beans stored for 360 days. Analyses were performed at 0, 30, 90, 180, 270, and 360 days after receiving the seeds (S1
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Christiano, Verônica. "Caracterização física e elétrica de filmes dielétricos de Al2O3 e AlxHf1-xOy para estruturas high-k MOS." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/3/3140/tde-06062013-144815/.

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Neste trabalho, foram caracterizados eletricamente capacitores MOS com alumina (Al2O3) e aluminato de háfnio (AlxHf1-xOy) como dielétricos de porta, além disso, estes filmes dielétricos foram caracterizados fisicamente. A alumina foi obtida da oxidação anódica de filmes de alumínio evaporados sobre p-Si (100) através de imersão em ácido nítrico por 4 ou 6 min, para diferentes etapas de limpeza finais do substrato: solução diluída de ácido fluorídrico (DHF) ou solução de peróxido sulfúrico (SPM). Análises de retroespalhamento de Rutherford (RBS), espectroscopia por dispersão em energia (EDS) e
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45

Hansson, Martin. "Low-Power Multi-GHz Circuit Techniques for On-chip Clocking." Licentiate thesis, Linköping : Linköping University, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7545.

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Ribbenfjärd, David. "A lumped element transformer model including core losses and winding impedances." Licentiate thesis, KTH, School of Electrical Engineering (EES), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4307.

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<p>In order to design a power transformer it is important to understand its internal electromagnetic behaviour. That can be obtained by measurements on physical transformers, analytical expressions and computer simulations. One benefit with simulations is that the transformer can be studied before it is built physically and that the consequences of changing dimensions and parameters easily can be tested.</p><p>In this thesis a time-domain transformer model is presented. The model includes core losses as magnetic static hysteresis, eddy current and excess eddy current losses. Moreover, the mode
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Yu, Weize. "Exploiting On-Chip Voltage Regulators as a Countermeasure Against Power Analysis Attacks." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6986.

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Non-invasive side-channel attacks (SCA) are powerful attacks which can be used to obtain the secret key in a cryptographic circuit in feasible time without the need for expensive measurement equipment. Power analysis attacks (PAA) are a type of SCA that exploit the correlation between the leaked power consumption information and processed/stored data. Differential power analysis (DPA) and leakage power analysis (LPA) attacks are two types of PAA that exploit different characteristics of the side-channel leakage profile. DPA attacks exploit the correlation between the input data and dynamic pow
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Zhang, Heng. "Otahuhu B Power Station condenser in-leakage analysis and condensate monitoring system : a thesis presented in partial fulfilment of the requirements for the degree of Master of Engineering in Electronics Engineering at Massey University, Wellington, New Zealand." Massey University, 2008. http://hdl.handle.net/10179/950.

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Considerable ongoing risk of condenser in-leakage exists at Otahuhu B (OTB) Power Station. The condenser cooling water used at OTB station is corrosive brackish water with exceedingly high sodium and chloride concentrations. Significant signs of corrosion inside the condenser have been found recently. In the event of condenser in-leakage, the salt contaminants in the cooling water will directly enter the Heat Recovery Steam Generator (HRSG) with the potential for significant and costly damage resulting in a long plant outage. A dynamic mathematical model was developed in the thesis to analyse
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Hammami, Saber. "Propriétés physiques et électriques de polymères électroactifs." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAT033/document.

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Les élastomères diélectriques sont de plus en plus utilisés pour la réalisation des transducteurs dans de nombreux domaines industriels : interface haptique, robotique, biomimétisme, conversion d’énergie. Pour le fonctionnement de toutes ces applications, le polymère électroactif est soumis à une haute tension (de 1 à 10kV). Toutefois, le courant de fuite diminue l’efficacité et la durée de vie des dispositifs utilisant ces matériaux.Par ailleurs, une précontrainte mécanique (étirement) est généralement appliquée au polymère pour accroître l’efficacité énergétique dans la conversion mécanique-
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Caldeira, Nabo Adelphe. "Contribution à l'estimation et à l'amélioration de la production de l'énergie photovoltaïque." Thesis, Tours, 2013. http://www.theses.fr/2013TOUR4058/document.

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Ces travaux de thèse consistent à proposer des outils matériels et logiciels pour estimer et améliorer le rendement énergétique de la chaine de conversion d’énergie photovoltaïque pour les applications de l’habitat. Nous avons dans un premier temps proposé une nouvelle architecture mixte d’onduleur à 5 niveaux. Ce type de structure, fondé sur un couplage d’un onduleur en pont complet et d’une architecture NPC, permet de diminuer le THD de la tension de sortie du convertisseur tout en limitant les niveaux de courant de fuite induits par les modules photovoltaïques. Ce type d’architecture est co
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