Relevant bibliographies by topics / Loss optimization / Dissertations / Theses
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Dissertations / Theses on the topic 'Loss optimization'

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Published: 5 June 2025
Last updated: 2 August 2025

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1

Thompson, Mark Richard. "Fixed point methods for loss networks /." St. Lucia, Qld, 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16490.pdf.

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2

Kinney, Mark D. "General loss function applied to satellite scheduling optimization." Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/43938.

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Approved for public release; distribution is unlimited<br>Satellite imagery utilization is an oversubscribed problem and therefore requires optimum scheduling methodology to maximize the use of the systems. There are many methods to determine performance of a scheduling algorithm, many of which rely on comparison to already established standards. Based on Taguchi’s quality loss function formulation that was developed for the manufacturing industry, four general quality loss functions are presented. These loss functions show the dollars lost when two different performances are changed. The two
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3

Papier, Felix. "Optimization of rental systems : queuing loss theory for the optimization of cargo vehicle rental systems /." Köln : Kölner Wiss.-Verl, 2007. http://deposit.d-nb.de/cgi-bin/dokserv?id=3069373&prov=M&dok_var=1&dok_ext=htm.

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4

Teo, Koon Soon. "Loss of coordination in competitive supply chains." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/54216.

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Thesis (S.M.)--Massachusetts Institute of Technology, Computation for Design and Optimization Program, 2009.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student submitted PDF version of thesis.<br>Includes bibliographical references (p. 161-163).<br>The loss of coordination in supply chains quantifies the inefficiency (i.e. the loss of total profit) due to the presence of competition in the supply chain. In this thesis, we discuss four models: one model with multiple reta
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5

Ottosson, Simon, and Fredrik Wahlgren. "Optimization of Cavity Receiver Geometry with regards to Radiation Heat Loss." Thesis, KTH, Industriell ekologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-189133.

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In order to maximize the e ciency of power generation in concentrated solar power systems (CSP) it is de- sired to achieve as high a tempera- ture in the receiver as possible due to the use of the Sterling cycle to gen- erate power. This report investigates three di↵erent geometries for cavity receivers in CSP systems; cylindrical, conical and truncated conical. The goal has been to minimize the heat loss due to radiation. This was achieved through mathematical mod- eling with the help of MATLAB. Five di↵erent cases with regards to oper- ating temperature and proportions of the receiver where
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Pedreira, Carlos Eduardo. "Theory of shape optimization with applications to heat loss minimization." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/47626.

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7

Ding, Qifeng. "Optimal meter placement and transaction-based loss allocation in deregulated power system operation." Texas A&M University, 2004. http://hdl.handle.net/1969.1/1475.

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In this dissertation topics of optimal meter placement and transaction-based loss allocation in deregulated power system operation are investigated. Firstly, Chapter II introduces the basic idea of candidate measurement identification, which is the selection of candidate measurement sets, each of which will make the system observable under a given contingency (loss of measurements and network topology changes). A new method is then developed for optimal meter placement, which is the choice of the optimal combination out of the selected candidate measurement sets in order to ensure the entire
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8

Palekar, Trishul Ajit. "Signal optimization at isolated intersections using pre-signals." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4279.

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This research proposes a new signal operation strategy aimed at efficient utilization of green time by cutting down on the start up and response loss times. The idea is to have a "pre-signal" on each main approach a few hundred feet upstream of the intersection in addition to the main intersection signal, which is coordinated with the pre-signal. The offset between the main and pre-signal ensures that the majority of start up losses does not occur at the main signal. The benefits of the system under various traffic conditions were evaluated based on analysis of the queue discharge process and
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9

Eriksson, Daniel, and Axel Persson. "Energy Optimization of Scheduling and Packet Loss in Wireless Sensor Networks." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-214699.

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We study the data aggregation of Wireless SensorNetworks (WSN). This is done by considering two problemformulations. The problems examine two different parts of thenetworks and their impact on its energy consumption. The firstproblem looks at the impact of packet loss and the secondproblem on the impact of network scheduling. The reason behindthis is that WSN usually operate on battery power and may beplaced in locations where they are hard to replace. Thus if itis possible to reduce the energy consumption of a WSN, thetotal lifespan of it will be increased. This led to the formulationof a NP-
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10

Hussein, Mohamed Gamar. "Optimization of PECVD boron-phosphorus doped silicon oxynitride for low-loss optical waveguides." Enschede : University of Twente [Host], 2007. http://doc.utwente.nl/57857.

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11

Lachenmyer, Nathan S. (Nathan Scott). "Specific loss power optimization in metal ferrite nanocrystals for radiofrequency stimulation of neurons." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/85475.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, February 2013.<br>Cataloged from PDF version of thesis. "September 2012."<br>Includes bibliographical references (pages 83-90).<br>Neurons serve as the basic unit of computation within the nervous system. As the nervous system is involved with the encoding, transmission, processing, and decoding of information at every level, characterization of the nervous system is of the utmost interest to neuroscience. However, techniques for probing the nervous system have previously focused
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12

Ogundapo, Olusegun. "High frequency Ethernet cabling analysis and optimization." Thesis, De Montfort University, 2016. http://hdl.handle.net/2086/14148.

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This thesis provides analytical and forensic tools for data cabling, with particular focus on Ethernet cabling to assist designers and those involved in deployments in analyzing cable performance and the reasons behind the actual performance obtained. The need for higher bandwidth to accommodate increasing demand for multimedia services and data centers network infrastructure led to the formation of IEEE P802.3bq to create standards for 40GBASE-T over twisted pair cables. The 40GBASE-T is expected to offer bandwidth of up to 2000MHz over a maximum channel length of 30m. The research investigat
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13

Chayopitak, Nattapon. "Performance Assessment and Design Optimization of Linear Synchronous Motors for Manufacturing Applications." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/16281.

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The major contributions of this thesis are categorized into three areas: (i) magnetic modeling, (ii) optimal performance assessment and (iii) multi-objective design methodology of the linear permanent-magnet (LPM) and linear variable reluctance (LVR) motors for manufacturing automation applications. The target application is to perform repetitive point-to-point positioning tasks on a continuous basis under temperature constraints. Through simplification, the constraint on temperature rise may be replaced by a constraint on average power dissipation, provided that the thermal resistance is cons
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14

Urrutia, Arestizábal Patricio Alejandro. "Modelación y Optimización de Redes IP Usando Herramientas de Inteligencia Computacional." Tesis, Universidad de Chile, 2007. http://www.repositorio.uchile.cl/handle/2250/104527.

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15

Svozil, Jan. "Optimalizace potrubních tvarovek." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-233996.

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Adapting pipes are a significant part of any pipe-line network and they are the sources of substantial hydraulic losses. They are designed for a manufacturing simplicity, regardless of flow. This paper concerns with lowering of hydraulic losses of adapting pipes by means of the shape optimization. Several methods of a mathematical optimization are tested and due to the complexity of the task and the need of the computational distribution among several computers, the gradient based algorithm is used. These methods loop together with a CFD software then automatically explore the design space. Se
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Zhang, Yitian. "STUDIES TO IMPROVE EXHAUST SYSTEM ACOUSTIC PERFORMANCE BY DETERMINATION AND ASSESSMENT OF THE SOURCE CHARACTERISTICS AND IMPEDANCE OPTIMIZATION." UKnowledge, 2016. http://uknowledge.uky.edu/me_etds/77.

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It is shown that the relationship between an impedance change and the dynamic response of a linear system is in the form of the Moebius transformation. The Moebius transformation is a conformal complex transformation that maps straight lines and circles in one complex plane into straight lines and circles in another complex plane. The center and radius of the mapped circle can be predicted provided that all the complex coefficients are known. This feature enables rapid determination of the optimal impedance change to achieve desired performance. This dissertation is primarily focused on the ap
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17

Wang, Ziyu S. M. Massachusetts Institute of Technology. "Loss pattern recognition and profitability prediction for insurers through machine learning." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111514.

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Thesis: S.M., Massachusetts Institute of Technology, Computation for Design and Optimization Program, 2017.<br>S.M. !c Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science 2017<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 91-94).<br>For an insurance company, assessing risk exposure for Property Damage (PD), and Business Interruption (BI) for large commercial clients is difficult because of the heterogeneity of that exposure, within a single client (account), and between different divisions, and regions, where
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18

Al-Hajri, Muhammad T. "Electrical power energy optimization at hydrocarbon industrial plant using intelligent algorithms." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/12681.

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In this work, the potential of intelligent algorithms for optimizing the real power loss and enhancing the grid connection power factor in a real hydrocarbon facility electrical system is assessed. Namely, genetic algorithm (GA), improve strength Pareto evolutionary algorithm (SPEA2) and differential evolutionary algorithm (DEA) are developed and implemented. The economic impact associated with these objectives optimization is highlighted. The optimization of the subject objectives is addressed as single and multi-objective constrained nonlinear problems. Different generation modes and system
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19

Robillard, Cassandra. "Prioritizing Areas for Habitat Conservation in the Face of Climate and Land-Use Change." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34499.

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The selection of sites for biodiversity conservation is best done if it anticipates future challenges and efficiently accomplishes targets, given limited funding for such efforts. The first chapter of this thesis discusses how conservation practitioners might manage and enhance long-term survival for species whose ranges must shift as climate changes, across regions that present significant mobility barriers. I describe recommendations highlighting connectivity, refugia from climate change, adaptation, and restoration within agricultural landscapes in North America, but these recommendations a
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20

Gradzki, Pawel Miroslaw. "Core loss characterization and design optimization of high-frequency power ferrite devices in power electronics applications." Diss., This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-06062008-165934/.

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21

Holmeide, Ø., and M. Schmitz. "USE OF GIGE VISION ETHERNET CAMERAS FOR FLIGHT TEST APPLICATIONS WITHOUT DATA LOSS." International Foundation for Telemetering, 2016. http://hdl.handle.net/10150/624225.

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As Ethernet based networks have become the dominant choice for Flight Test Instrumentation (FTI) network applications, it is also clear that Ethernet based camera integration and applications have yet to become more wide spread for system level design and integration. A significant customer base utilizes either separate video compression systems or even just stand-a-lone gopro cameras for recording purposes in an unsynchronized ways. The use of uncompressed high definition (HD) video from GigE Vision Ethernet cameras for flight test applications is a significant issue in managing the lar
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22

Guenoun, Pierre S. M. Massachusetts Institute of Technology. "Design optimization of advanced PWR SiC/SiC fuel cladding for enhanced tolerance of loss of coolant conditions." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/103649.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Nuclear Science and Engineering, 2016.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 64-68).<br>Limited data has been published (especially on experimental work) on integrated multilayer SiC/SiC prototypical fuel cladding. In this work the mechanical performance of three unique architectures of three-layer silicon carbide
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23

Raven, Hans Rafael. "Flow Control Optimization for Improvement of Fan Noise Reduction." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/30847.

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The study of the flow of a fan blade was conducted to improve tonal fan noise reduction by optimizing an existing flow control configuration. The current configuration consisted of a trailing edge Slot with a flow control area of 0.045 in² per inch span with an exit angle of -3.3° with respect to the blade exit angle. Two other flow control configurations containing discrete jets were investigated. For the first configuration, the trailing edge jets (TEJ), the fan blade was modified with discrete jets spaced 0.3 inches apart with a flow control area of 0.01 in² per inch span positioned o
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24

Banks, William V. III. "Analysis of Turbine Rotor Tip Clearance Losses and Parametric Optimization of Shroud." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu155718636896448.

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25

Li, Zeyuan. "Target localization using RSS measurements in wireless sensor networks." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31356.

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The subject of this thesis is the development of localization algorithms for target localization in wireless sensor networks using received signal strength (RSS) measurements or Quantized RSS (QRSS) measurements. In chapter 3 of the thesis, target localization using RSS measurements is investigated. Many existing works on RSS localization assumes that the shadowing components are uncorrelated. However, here, shadowing is assumed to be spatially correlated. It can be shown that localization accuracy can be improved with the consideration of correlation between pairs of RSS measurements. By line
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26

Gruber, Elliott Ross. "Optimal configuration of adjustable noise suppressors." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/47616.

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Noise generated by fluid power applications can be treated using bladder-style suppressors, and an optimal operating condition for these devices is sought in this thesis. Bladder-style suppressors employ a compliant nitrogen-charged bladder to create an impedance change within the system, reflecting the noise back to the source and preventing it from propagating downstream. The noise in a hydraulic system is created by a pump, the flow source in a hydraulic system, and can be separated into three categories: fluid-borne noise, structure-borne noise and airborne noise. Fluid-borne noise places
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27

Martins, Fábio Tadeu Arrojo 1989. "Otimização de rastreamento simultâneo das principais mutações envolvidas na surdez neurossensorial não-sindrômica utilizando a plataforma TaqMan 'MARCA REGISTRADA' OpenArray 'TRADE MARK' Genotyping." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316700.

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Orientador: Edi Lúcia Sartorato<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-22T05:36:29Z (GMT). No. of bitstreams: 1 Martins_FabioTadeuArrojo_M.pdf: 6195877 bytes, checksum: 88704a1b2448dcb2851e78b62c37e6b9 (MD5) Previous issue date: 2013<br>Resumo: A perda auditiva é a deficiência sensorial mais frequente em humanos, atingindo aproximadamente 10% de toda a população mundial. A restrição da comunicação pela expressão oral resulta em alterações no desenvolvimento cognitivo e psicológico do indivíduo afetado. Em pa
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28

Blanks, Joseph E. "Optimal Design of an Enclosure for a Portable Generator." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/9585.

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A simple, effective design for enclosing portable generators to reduce the radiated noise is an idea that seems to be desired by the consumers in this market. This investigation is to determine the feasibility of producing such an enclosure for a generator. Several engineering aspects are incorporated in the design of the enclosure. The first, and probably the most paramount, are the acoustical effects of the enclosure itself. The investigation follows the theories for insertion loss of a close fitting enclosure. The thesis examines the system behavior of a close fitting enclosure that most ac
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Costa, Julio C. "Analysis and optimization of empirical path loss models and shadowing effects for the Tampa Bay area in the 2.6 GHz band." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002547.

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Meenach, Stephanie Marie. "Transportation optimization modeling for Washington State hay shipments mode and cost implications due to loss of container services at the Port of Portland /." Online access for everyone, 2005. http://www.dissertations.wsu.edu/Thesis/Spring2005/s%5Fmeenach%5F050505.pdf.

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31

Sawadkosin, Paranee. "Optimalizace tvaru strojních součástí s vlivem variabililty vstupních údajů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401572.

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The objective of this Master’s thesis is to find shape optimal design based on min- imizing friction force of thrust bearing by using genetic algorithm(GA) which is one of an optimization toolbox in Matlab. Reducing the friction force of thrust bearing is one way of making shaft to decreasing friction losses. With four parameters of thrust bearing geometry number of segments(m), angle of running surface(), segment inner radius(R0), and segment outer radius(R1) substitute in Reynolds’ equation. In order to know friction force, it is necessary to generate a connecting variable, oil film thicknes
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32

Pedroli, Francesco. "Dielectric strength and leakage current : From synthesis to processing optimization." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI014.

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Les polymères électro-actifs (EAP) tels que le P (VDF-TrFE-CTFE) se sont révélés très prometteurs dans le domaine des capteurs et actionneurs flexibles. Les avantages de l'utilisation des PAE pour les appareils électriques intelligents sont dus à leur faible coût, leurs propriétés élastiques, leur faible densité et leur capacité à être fabriqués en différentes formes et épaisseurs. Au cours des années précédentes, le terpolymère P (VDF-TrFE-CTFE) a attiré de nombreux chercheurs en raison de sa propriété ferroélectrique relaxante qui présente des phénomènes d'électrostriction élevés. Malgré leu
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33

Dinh, Hai-Dung Verfasser], and Günter [Akademischer Betreuer] [Schmidt. "Optimization in finance : approaches for modeling and solving the multi-period loss offset problem in German income tax system / Hai-Dung Dinh. Betreuer: Günter Schmidt." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:291-scidok-61545.

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Dinh, Hai-Dung [Verfasser], and Günter [Akademischer Betreuer] Schmidt. "Optimization in finance : approaches for modeling and solving the multi-period loss offset problem in German income tax system / Hai-Dung Dinh. Betreuer: Günter Schmidt." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2015. http://d-nb.info/1072620421/34.

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35

Gacim, Fadoua. "Modelling, characterisation and optimization of substrate losses in RF switch IC design for WLAN applications." Thesis, Normandie, 2017. http://www.theses.fr/2017NORMC268/document.

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Cette thèse est une étude sur la caractérisation, la modélisation et l’optimisation des effets substrat dans les circuits intégrés, dédies à des applications WLAN.L’objectif de ces travaux de recherche est de développer une nouvelle méthodologie d’extraction qui prenne en compte tous les parasites ; à savoir les modèles RLCK distribués, les effets électromagnétiques, ainsi que le couplage substrat.Les effets substrat ont été optimisés grâce au développement de nouvelles structures d’isolation utilisant des tranches profondes d’isolation (DTI).La prédictibilité des simulations circuits a été am
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Lu, Ming. "Synergetic Attenuation of Stray Magnetic Field in Inductive Power Transfer." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/78621.

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Significant stray magnetic field exists around the coils when charging the electric vehicles (EVs) with inductive power transfer (IPT), owning to the large air gap between the transmitter and receiver. The methods for field attenuation usually introduce extra losses and reduce the efficiency. This study focuses on the synergetic attenuation of stray magnetic field which is optimized simultaneously with the efficiency. The optimization is realized with Pareto front. In this dissertation, three methods are discussed for the field attenuation. The first method is to tune the physical parameters
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Surovec, Vojtěch. "Optimalizace modelu odrušovacího filtru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219118.

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In introduction of work, I presented the state of the art of measuring insertion loss of the EMI filter and the description of individual methods of measuring is also included. After that I dealt with global optimization methods and some of them I theoretically described. Mainly PSO method was studied carefully, and the principle of optimization in details are presented in the thesis, because this method was used for optimization of the filters parameters in the thesis. Next part of work deals with theoretical and mathematical expression of insertion loss of the EMI filters. Due to the mathema
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Correia, Cristiana Amaral. "Optimal reinsurance in a diffusion setting." Master's thesis, Instituto Superior de Economia e Gestão, 2021. http://hdl.handle.net/10400.5/22814.

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Mestrado Bolonha em Mathematical Finance<br>The business of insurance companies is to take on the risk of policyholders (individuals or companies), receiving in return the payment of a premium. In order to protect themselves against big losses, and not be at risk of insolvency, insurance companies usually reinsure part of their portfolio by transferring part of the risk taken to another insurance company. Reinsurance works, in this way, as the insurance of the insurer itself. The optimal reinsurance problem aims at answering two fundamental questions: (i) What type of reinsurance contract shou
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Queiroz, Leonardo Mendonça Oliveira de. "Algoritmos geneticos hibridos para redução de perdas tecnicas em redes primarias de distribuição considerando variações de demandas." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261733.

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Orientador: Christiano Lyra Filho<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-06T02:47:37Z (GMT). No. of bitstreams: 1 Queiroz_LeonardoMendoncaOliveirade_M.pdf: 695151 bytes, checksum: 1dd5cfdea3e5f570eac87a0b801c8e25 (MD5) Previous issue date: 2005<br>Resumo: Esse trabalho propõe um Algoritmo Genético Híbrido para o problema de redução de perdas em redes de distribuição de energia elétrica através de reconfigurações da rede, considerando-se as variações das demandas ao longo do dia. É
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Tebcherani, Tanya Marie. "A Computational Approach to Enhance Control of Tactile Properties Evoked by Peripheral Nerve Stimulation." Case Western Reserve University School of Graduate Studies / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case1625780331134629.

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41

Wu, Jinran. "Statistical support vector machines with optimizations." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/234509/1/Jinran_Wu_Thesis.pdf.

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This thesis combines support vector machines with statistical models for analyzing data generated by complex processes. The key contribution of the thesis is to propose five regression frameworks aiming for hyperparameter estimation, support vector selection, data modelling with unequal variances, temporal patterns, and cost benefit analysis. A new optimizer is also proposed for high-dimensional optimization.
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Frias, Anthony. "Minimisation des pertes fer des machines électriques de traction par la modélisation et l'optimisation." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAT028/document.

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Le coût, l'autonomie et la durée de vie sont les principaux aspects qui freine le public dans l'achat d'une voiture électrique. Tous ces aspects sont liés à la batterie qui ne permet de stocker qu'une quantité limitée d'énergie. Dans ces conditions, il est indispensable de maîtriser les pertes d'énergie de la chaîne de traction. La machine électrique étant le principal consommateur d'énergie, elle joue un rôle important dans l'efficacité énergétique globale. Dans ce contexte, comment réduire les pertes de la machine électrique pour la rendre plus efficace ? Pour répondre à cette question, l'ob
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Coelho, Francisco Carlos Rodrigues. "Alocação de geração distribuída em sistemas de distribuição de energia elétrica via otimização bioinspirada na ecolocalização de morcegos." Universidade Federal de Juiz de Fora, 2013. https://repositorio.ufjf.br/jspui/handle/ufjf/1203.

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44

Spatti, Karla Barbosa de Freitas. "Modelos matemáticos e heurísticas baseadas em técnicas de programação matemática para o problema de minimização de perdas e reconfiguração de redes elétricas." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-17102018-085628/.

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A reconfiguração de redes de distribuição de energia elétrica consiste em alterar sua topologia por meio de manobras de chaves nos circuitos primários. Trata-se de um problema de otimização combinatória, onde normalmente os objetivos são a minimização de perdas ativas e/ou número de manobras realizadas, atendendo as restrições como isolamento de faltas, balanceamento de cargas entre os alimentadores e melhoria dos níveis de tensão. As dificuldades na modelagem e na resolução exata de problemas envolvendo a reconfiguração de redes de distribuição advém do tamanho dos sistemas reais, representad
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45

Resener, Mariana. "Modelo linearizado para problemas de planejamento da expansão de sistemas de distribuição." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/156487.

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Este trabalho apresenta um modelo linearizado para ser utilizado em problemas de planejamento da expansão de sistemas de distribuição de energia elétrica (SDEE) com geração distribuída (GD), em um horizonte de curto prazo. O ponto de operação em regime permanente é calculado através de um modelo linearizado da rede, sendo as cargas e geradores representados por injeções constantes de corrente, o que torna possível calcular as correntes nos ramos e as tensões nas barras através de expressões lineares. As alternativas de expansão consideradas são: (i) alocação de bancos de capacitores; (ii) aloc
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46

Ziari, Iman. "Planning of distribution networks for medium voltage and low voltage." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/46684/1/Iman_Ziari_Thesis.pdf.

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Determination of the placement and rating of transformers and feeders are the main objective of the basic distribution network planning. The bus voltage and the feeder current are two constraints which should be maintained within their standard range. The distribution network planning is hardened when the planning area is located far from the sources of power generation and the infrastructure. This is mainly as a consequence of the voltage drop, line loss and system reliability. Long distance to supply loads causes a significant amount of voltage drop across the distribution lines. Capacitors
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47

Sánchez, Orgaz Eva María. "Advanced numerical techniques for the acoustic modelling of materials and noise control devices in the exhaust system of internal combustion engines." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/64090.

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[EN] This Thesis is focused on the development and implementation of efficient numerical methods for the acoustic modelling and design of noise control devices in the exhaust system of combustion engines. Special attention is paid to automotive perforated dissipative silencers, in which significant differences are likely to appear in their acoustic behaviour, depending on the temperature variations within the absorbent material. Also, material heterogeneities can alter the silencer attenuation performance. Therefore, numerical techniques considering all these features are required to guarantee
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48

Cavalcante, Gustavo Ara?jo. "Otimiza??o de modelos de predi??o da perda de propaga??o aplic?veis em 3,5GHZ utilizando algoritmos gen?ticos." Universidade Federal do Rio Grande do Norte, 2010. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15319.

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Made available in DSpace on 2014-12-17T14:55:43Z (GMT). No. of bitstreams: 1 GustavoAC__DISSERT.pdf: 2594771 bytes, checksum: b46a4c0b026ad559d9ed126acb92b471 (MD5) Previous issue date: 2010-07-09<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>The telecommunications industry has experienced recent changes, due to increasing quest for access to digital services for data, video and multimedia, especially using the mobile phone networks. Recently in Brazil, mobile operators are upgrading their networks to third generations systems (3G) providing to users broadband services su
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49

Wang, Jingyi. "Contribution to the characterization of stratified structures : electromagnetic analysis of a coaxial cell and a microstrip line." Thesis, Toulouse, INPT, 2018. http://www.theses.fr/2018INPT0004.

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L’objectif de cette étude est le développement des logiciels de modélisation électromagnétique spécifique aux cellules de caractérisation micro-ondes des matériaux. Ce développement s’appuiesur des méthodes numériques alternatives à celle des éléments finis largement utilisés dans des logiciels de commerce. Pour le besoin d’extraction des propriétés des matériaux par des méthodes de modélisation inverse, la recherche en l’efficacité numérique de l’analyse directe est le point central de cette étude. Les cellules de caractérisation ciblées dans ce travail concernent une cellule coaxiale et une
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50

Duque, Felipe Gomes. "Alocação de capacitores em sistemas de distribuição de energia elétrica utilizando técnica de otimização bio-inspirada." Universidade Federal de Juiz de Fora, 2016. https://repositorio.ufjf.br/jspui/handle/ufjf/962.

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