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Дисертації з теми "Electrical strength"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Olupot, Peter Wilberforce. "Assessment of ceramic raw materials in Uganda for electrical porcelain." Licentiate thesis, Stockholm : Royal Institute of Technology (KTH), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4013.

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2

Sheldon, Jeffrey W. (Jeffrey William) 1978. "Strength reduction of integer division and modulo operations." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/86849.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.<br>Includes bibliographical references (leaves 53-54).<br>by Jeffrey W. Sheldon.<br>M.Eng.

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3

Iddrissu, Ibrahim. "Study of electrical strength and lifetimes of polymeric insulation for DC applications." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/study-of-electrical-strength-and-lifetimes-of-polymeric-insulation-for-dc-applications(68af91aa-80ef-431c-ae93-9ffdb272d648).html.

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Polymeric insulating materials are being re-evaluated in the context of the re-emergence of HVDC and its advantages in bulk power transfer over long distances. This has been met with new sets of requirement such as; the use of polymeric insulation, compaction of HV equipment (e.g. HV cables), and innovations in converter technology. This equipment requires high power rating and hence will be exposed to high electric stresses. One of the properties of polymeric DC insulation is its ability to retain injected charges at high DC fields leading to local field modification and subsequent breakdown

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4

Guapuriche, Manuel Antonio Salazar. "Evolution of Electrical Conductivity, Hardness and Strength during Age Hardening of AA 7010." Thesis, University of Liverpool, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.507650.

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5

Whiting, Samuel. "Radio-Frequency Transmitter Geolocation Using Non-Ideal Received Signal Strength Indicators." DigitalCommons@USU, 2018. https://digitalcommons.usu.edu/etd/7038.

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Locating a radio transmitter is important in a number of problems such as finding radio tags, people with radios, and devices that are collecting information in an unauthorized manner. Locating a radio transmitter is inherently difficult because the radio waves of concern are not in the visible spectrum, they reflect and distort easily, and they propagate at the speed of light. A number of methods for locating transmitters are currently used, the majority of which require expensive hardware and extensive processing. This thesis presents a method of using simpler measurements to produce similar

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6

Sellars, Malcolm. "Electric field mill for the simultaneous measurement of electric field strength and ion current diensity." Master's thesis, University of Cape Town, 1995. http://hdl.handle.net/11427/22039.

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In the last 20 years, the use of high voltage direct current (HVDC) power transmission has grown considerably. With the increase in the number of HVDC transmission lines and in the transmission voltages, concern has increased as to possible health effects. For research on these health effects to be carried out, it is necessary to measure the electrical environment ofHVDC transmission lines accurately. The electrical environment ofHVDC transmission lines is characterised by: Electric field strength E [Vim];Ion current density J [A/m²] ;Space charge density p [C/m³ ]. Typical values measured un

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7

Kesar, Trisha. "Effect of stimulation frequency and intensity on skeletal muscle fatigue during repetitive electrical stimulation." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 1.62 Mb., 85 p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:1430768.

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8

Ibeawuchi, Stella-Rita Chioma. "Optimum sensor placement for source localization and monitoring from received signal strength." Diss., University of Iowa, 2010. https://ir.uiowa.edu/etd/822.

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The problem of source localization has become increasingly important in recent years. In source localization, we are interested in estimating the location of a source using various relative position information. This research considers source localization using relative position information provided by Received Signal Strength (RSS) values under the assumption of log-normal shadowing. We investigate an important aspect of source localization, namely, that of optimally placing sensors. Two specific issues are investigated. The first is one of source monitoring. In this, one must place sensors a

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9

Chou, Li-Wei. "New strategies to maintain paralyzed skeletal muscle force output during repetitive electrical stimulation." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 147 p, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3247571.

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10

Sharpe, David. "An investigation into the viability of using radio signal strength across multiple frequencies for personnel tracking." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/10685.

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Location systems for tracking people and objects have many potential applications, such as: safety, security, logistics, control, surveillance and automation. GPS is such a system, but does not work accurately indoors. This project was initiated to further investigate a location technique developed by Microsoft Research, using a wireless local area network with one mobile network point, and measuring the radio signal strength of the network communications between the mobile and fixed points. This project attempted to improve on this technique by investigating whether additional information and

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11

Cartwright, Giles Adrian. "The measurement of space charge and its effect on the breakdown strength of solid polymeric insulation." Thesis, University of Southampton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240724.

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12

Carkner, Jonathon. "The role of neuromuscular electrical stimulation in improving peripheral muscle strength in chronically ill bedbound patients." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=104660.

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Chronically ill patients undergoing prolonged bedrest in the intensive care unit and long-term care facilities typically experience a marked loss of muscle mass, particularly in the lower limbs, translating into clinically significant muscular weakness. Both muscle atrophy and weakness can be present following only one week of stay in the ICU. Following discharge from the hospital, functional limitations may persist for years and impede their return to activities of daily living, thus highlighting the importance of developing an effective intervention against disuse-related muscle atrophy and

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13

Edelstein, Andrea. "Background substraction methods for online calibration of baseline received signal strength in radio frequency sensing networks." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106414.

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Radio frequency (RF) sensing networks are a class of wireless sensor networks (WSNs) which use RF signals to carry out tasks such as tomographic imaging, tomographic target tracking and node localization. While a wide variety of such algorithms exist, they often assume access to measurements of the baseline received signal strength (RSS) on each link, i.e, to measurements taken during some offline calibration period when no temporary obstructions are located near the nodes which form the network. However, in many cases, WSNs are designed to be deployed and used on the fly, and it can be imposs

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14

Barakat, Khalil. "The multi-level fast multipole method and prediction of cellular signal strength in an urban environment /." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33955.

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There is great interest in solving microwave propagation problems in the urban environment, for planning and simulating cell phone systems. The most accurate approach would be to solve Maxwell's equations for the unknown field strength at every point. Traditional computational methods require dividing space into N subregions (e.g. finite elements) that are no longer than about half a wavelength across, and introducing several unknowns per subregion. This thesis investigates computationally efficient methods of solving such problems on electrically large domains and as a result, the Multi-Level

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15

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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16

Pasturel, Solenn. "Assessing the efficacy of Neuromuscular Electrical Stimulation on Maximal Strength in Physical Education Students, Trained and Elite Athletes : A Review with a Systematic approach." Thesis, Högskolan i Halmstad, Biomekanik och biomedicin, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-26108.

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Background: Neuromuscular electrical stimulation (NMES) is increasingly being usedoutside the realms of physical therapy. Acknowledged as an efficient method to enhancestrength parameters, athletes are increasingly using NMES to facilitate training andstrength gains. A review was designed with a systematic approach with the mainobjective: to assess the effectiveness of transcutaneous NMES on maximal strength inphysical education students, trained and elite athletes in studies involving isometricNMES and Dynamic NMES. Method: A search for all types of trials was performed onPubmed, Sportdiscus,

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17

Chitte, Sree Divya. "Source localization from received signal strength under lognormal shadowing." Thesis, University of Iowa, 2010. https://ir.uiowa.edu/etd/477.

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This thesis considers statistical issues in source localization from the received signal strength (RSS) measurements at sensor locations, under the practical assumption of log-normal shadowing. Distance information of source from sensor locations can be estimated from RSS measurements and many algorithms directly use powers of distances to localize the source, even though distance measurements are not directly available. The first part of the thesis considers the statistical analysis of distance estimation from RSS measurments. We show that the underlying problem is inefficient and there is on

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18

Mossor, Charles W. "Electrical Breakdown of Thermal Spray Alumina Ceramic Applied to AlSiC Baseplates Used in Power Module Packaging." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/33543.

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Thermal spray coatings offer new alternatives in the production of electronic power modules that use alumina ceramic as an isolation layer. Current processes use direct bond copper (DBC) soldered to a nickel plated copper heat spreader. A coefficient of thermal expansion (CTE) mismatch exists between copper and alumina and leads to reliability issues that arise due to product failure during thermal cycling and lifetime operation. The substitution of an AlSiC metal matrix composite (MMC) heat spreader baseplate addresses the problem of CTE mismatch and will reduce the number of product failu

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19

Bernasko, Peter Kojo. "Study of intermetallic compound layer formation, growth and evaluation of shear strength of lead-free solder joints." Thesis, University of Greenwich, 2012. http://gala.gre.ac.uk/9452/.

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Solder joints play a very important role in electronic products as the integrity of electronics packaging and assembly rests on the quality of these connections. The increasing demands for higher performance, lower cost, and miniaturisation in hand-held and consumer electronic products have led to the use of dense interconnections. This miniaturization trend means that solder joint reliability remains an important challenge with surface mount electronics assembly, especially those used in hostile environments, and applications such as automobile, aerospace and other safety critical operations.

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20

Gao, Yan 1970. "Surface electrical properties of goethite and adsorption of phosphate and arsenate on iron oxyhydroxides in high ionic strength solutions." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36934.

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Iron oxyhydroxides are ubiquitous in natural systems and have been recognized as strong adsorbents for Group V elements, such as arsenic and phosphorus. Consequently, the mobility and bioavailability of phosphate and arsenate in the marine environment are mostly regulated by the fate of iron oxyhydroxides. However, to this day, the majority of adsorption studies of phosphate and arsenate were performed in low ionic strength solutions. In this study, phosphate and arsenate complexation on goethite in a 0.7 M NaCl solution and seawater was characterized over a pH range of 3.0 to 10.0 in batch ad

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21

Deda, Hugo. "The Influence of the Binder Type & Aggregate Nature on the Electrical Resistivity and Compressive Strength of Conventional Concrete." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/41463.

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Concrete has been used in a number of civil engineering applications due to its interesting fresh, hardened, and durability-related properties. 28-day compressive strength is the most important hardened state property and is frequently used as an indicator of the material’s quality. However, early-age mechanical properties are a key factor nowadays to enhance construction planning. Several advanced techniques have been proposed to appraise concrete microstructure and quality, and among those electrical resistivity (ER) is one of the most commonly used since it is a non-destructive and low-cost

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22

Hietava, A. (Anne). "Electrical behaviour of submerged arc furnace’s charge materials." Doctoral thesis, Oulun yliopisto, 2018. http://urn.fi/urn:isbn:9789526219394.

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Abstract When producing ferrochrome, a submerged arc furnace (SAF) is used. The charge of an SAF consists of chromite pellets, coke, lumpy ore and quartzite as a slag modifier. The charge is pre-heated before it descends into the SAF where the charge eventually reduces and melts. The electrical conductivity of the charge is important because, among other things, it affects the productivity of the furnace. The electrical conductivity of the charge should ideally be low on the higher parts of the furnace and high near the electrode tip. This is to ensure that the electric current path travels th

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23

Jäverberg, Nadejda. "Electrical Insulating Properties of Poly(Ethylene-co-Butyl Acrylate) Filled with Alumina Nanoparticles." Doctoral thesis, KTH, Elektroteknisk teori och konstruktion, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-116862.

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In this work the electrical insulating properties of the nanocomposite materials based on poly(ethylene-co-butyl acrylate) filled with alumina nanoparticles are studied. The dielectric properties chosen for the evaluation are the dielectric permittivity and loss as well as the breakdown strength and the pre-breakdown currents. The reason for choosing these particular properties is partly due to the importance of these for the general electrical applications and partly due to the uncertainties involved for these particular properties of the nanocomposite materials. The importance of moisture ab

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24

Whale, Conley Caitlin E. "EFFECT OF A 12-WEEK HOME-BASED NEUROMUSCULAR ELECTRICAL STIMULATION TREATMENT ON CLINICAL OUTCOMES FOLLOWING ARTICULAR CARTILAGE KNEE SURGERY." UKnowledge, 2017. http://uknowledge.uky.edu/rehabsci_etds/40.

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Articular cartilage defects in the knee are common, and can result in pain, decreased function and decreased quality of life. Untreated defects are considered to be a risk factor for developing osteoarthritis, a progressive degenerative joint disease with minimal treatment options. To address these issues, various surgical procedures are available to treat articular cartilage defects in the knee. While these procedures overall have positive results, after surgery patients experience large and persistent deficits in quadriceps strength. A contributing factor to this post-surgical weakness is be

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25

Ghaffarian, Niasar Mohamad. "Mechanisms of Electrical Ageing of Oilimpregnated Paper due to Partial Discharges." Doctoral thesis, KTH, Elektroteknisk teori och konstruktion, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-159670.

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In this thesis, partial discharge (PD) phenomenon in oil-impregnated paper (OIP) is investigated under accelerated electrical stress. The thesis is mainly focused on the characteristic of PD activity and the influence it has on the insulation properties of OIP. PD source was created by introducing an air filled cavity embedded between layers of OIP. PD activity is investigated from the initiation up to final puncture breakdown of the OIP. The time-evolution of number, maximum magnitude and average magnitude of PD is investigated for cavities with different diameter and height. It was found tha

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26

Jeevarathnam, Nanda Gopal. "Grid-Based RFID Indoor Localization Using Tag Read Count and Received Signal Strength Measurements." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/7039.

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Passive ultra-high frequency (UHF) radio frequency identification (RFID) systems have gained immense popularity in recent years for their wide-scale industrial applications in inventory tracking and management. In this study, we explore the potential of passive RFID systems for indoor localization by developing a grid-based experimental framework using two standard and easily measurable performance metrics: received signal strength indicator (RSSI) and tag read count (TRC). We create scenarios imitating real life challenges such as placing metal objects and other RFID tags

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27

Joffe, Jessica Robyn. "The effect of functional electrical stimulation on abdominal muscle strength and gross motor function in children with cerebral palsy a randomised control trial." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/5940.

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28

Alahmari, Sami Khaloufah M. "Muscle force production and neuromuscular fatigue responses to neuromuscular electrical stimulation and tendon vibration." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/236174/1/Sami_Alahmari_Thesis.pdf.

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Neuromuscular electrical stimulation is an intervention that produces artificial muscle contractions and is used to rehabilitate people with motor impairments. However, a typical problem is the occurrence of rapid fatigue, which limits the training stimulus. This thesis investigated whether the addition of tendon vibration and concurrent activation of upper limb muscles could minimise fatigue and maximise torque produced by the calf muscles during neuromuscular electrical stimulation. The experiments in this thesis showed that superimposition of tendon vibration can increase the amount of torq

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29

Bedford, Adam. "Strength in flexibility : research into innovative flexible bearing designs for wave convertor permanent magnet generators." Thesis, Lancaster University, 2011. http://clok.uclan.ac.uk/4192/.

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Originally this research was to investigate the use of hydrostatic bearings in large linear machines, such as linear generators, and determine their viability in a power generation context. It quickly became clear that it was possible to make hydro-static bearings viable, however the methods employed to do so gave rise to new possibilities which altered the scope of the research. The overall aim of the research has become to look at flexible construction, using modular generation units, as a means of creating more reliable and cost effective generators. The methods employed to do this involved

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30

Silva, Taís Kereski da. "Avaliação do comportamento do ângulo de fase e da dinamometria manual em pacientes submetidos à cirurgia cardíaca : estudo de coorte prospectivo." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/148173.

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Introdução: O ângulo de fase (AF), derivado da análise de bioimpedância elétrica (BIA), tem sido interpretado como indicador de integridade da membrana celular; e a dinamometria manual têm sido usados como indicadores de prognóstico em algumas situações clínicas. Objetivos: avaliar o comportamento do AF e da dinamometria manual em pacientes submetidos à cirurgia cardíaca e associá-los com EuroSCORE e desfechos clínicos. Métodos: Estudo de coorte prospectivo com 50 pacientes submetidos à cirurgia cardíaca, com idade ≥18 anos, entre janeiro de 2015 e outubro de 2015. O AF e a dinamometria manual

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31

Crawford, Matthew M. "HYDROLOGIC MONITORING AND 2-D ELECTRICAL RESISTIVITY IMAGING FOR JOINT GEOPHYSICAL AND GEOTECHNICAL CHARACTERIZATION OF SHALLOW COLLUVIAL LANDSLIDES." UKnowledge, 2018. https://uknowledge.uky.edu/ees_etds/61.

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Landslide characterization and hazard assessments require multidisciplinary approaches that connect geologic processes with geotechnical parameters. Field monitoring of hydrologic variables such as water content and water potential, coupled with geoelectrical measurements that can establish relationships used for geotechnical and landslide hazard investigations is deficient. This study brings together different techniques to develop a methodology that connects geoelectrical measurements and shear strength. A field-based framework was established that includes (1) analysis of long-term soil moi

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32

Mackey, Matthew E. "Enhanced Dielectric Properties of Micro and Nanolayered Films for Capacitor Applications." Case Western Reserve University School of Graduate Studies / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1332860438.

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33

Bochkezanian, Vanesa. "Effect of a neuromuscular electrical stimulation muscle strength training intervention on muscle force and mass, physical health and quality of life in people with spinal cord injury." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2017. https://ro.ecu.edu.au/theses/1994.

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Анотація:

Spinal cord injury (SCI) leads to significant deficits in muscle strength and mass, impacting negatively on physical health and quality of life (QoL). Physical rehabilitation techniques for people with SCI rely on constant updates and the accumulation of evidence regarding the efficacy of available and/or new physical interventions. Neuromuscular electrical stimulation (NMES) is already commonly used to activate skeletal muscles and subsequently reverse muscle atrophy, however NMES as a high-intensity “strength training” intervention appears to be a particularly promising technique for increas

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34

Sousa, Natanael Teixeira Alves de. "Análise da eficácia da estimulação elétrica neuromuscular durante a oclusão do fluxo sanguíneo, no desempenho funcional e hipertrofia muscular, em atletas de basquete de alto rendimento. Ensaio clínico randomizado cego." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/17/17152/tde-18072018-190929/.

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A estimulação elétrica neuromuscular (EENM) é uma técnica que vem sendo utilizada para melhora das capacidades de força, potência de salto e velocidade, em diferentes modalidades esportivas, buscando o aumento do desempenho atlético. Contudo, até o presente momento existem poucos estudos acerca desta temática, sendo que, nenhum destes é um ensaio clínico randomizado. Outro método que tem se mostrado promissor, para ganho de força e hipertrofia muscular, é a realização do treinamento de baixa intensidade durante a oclusão do fluxo sanguíneo (OFS). Nesse sentido, o presente estudo buscou avaliar

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35

Mahnic̆-Kalamiza, Samo. "Effects of electrical and thermal pre-treatment on mass transport in biological tissue." Thesis, Compiègne, 2015. http://www.theses.fr/2015COMP2247/document.

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Le champ électrique d'une puissance suffisante peut provoquer une augmentation de conductivité et perméabilité de la membrane cellulaire. L'effet est connu comme l'électroporation, attribuée à la création de voies aqueuses dans la membrane. Quantifier le transport de la matière dans le cadre d'électroporation est un objectif important. Comprendre ces processus a des ramifications dans l’extraction du jus ou l’extraction sélective des composés de cellules végétales, l'amélioration de l'administration de médicaments, et des solutions aux défis environnementaux. Il y a un manque de modèles qui po

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36

Al, Issa Huthaifa A. "Position-adaptive Direction Finding for Multi-platform RF Emitter Localization using Extremum Seeking Control." University of Dayton / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1343755148.

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37

Murray, David Vernon. "The effect of maximal isometric training on doublet-induced force enhancement and its relationship with changes in voluntary rate of force development." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2018. https://ro.ecu.edu.au/theses/2074.

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Анотація:

Motor unit double discharges (i.e. doublets), which are excitatory potentials that occur at shorter-than-normal intervals (e.g. 5-10 ms) during normal muscle activation, are known to cause muscle force to exceed that predicted from a standard, linear summation of twitch forces. However, although a marked increase in the occurrence of motor unit doublets at the onset of a contraction has been observed after explosive-type exercise training, and has been correlated with changes in RFD (Van Cutsem et al., 1998), little is known about the influence of strength training on the physiological and bio

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38

Cannell, David Stuart. "The electric strength of barium titanate." Thesis, University of Leeds, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.237676.

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39

Yaede, Joseph Michael. "Internal Curing of Concrete Bridge Decks in Utah: Mountain View Corridor Project." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3995.

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The objectives of this research were to 1) monitor in-situ moisture and diffusivity for both conventional concrete and concrete containing pre-wetted lightweight fine aggregate (LWFA), 2) compare deck performance in terms of early-age cracking, compressive strength, and chloride ingress, and 3) compare concrete properties in terms of compressive strength, chloride permeability, elastic modulus, and water content in the laboratory using cylinders cast in the field at the time of deck construction. The research involved field and laboratory evaluations of four newly constructed bridge decks loca

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40

Bouguetoch, Amandine. "Méthodes alternatives de renforcement musculaire : cas de l’imagerie motrice et de la stimulation électrique neuromusculaire." Thesis, Bourgogne Franche-Comté, 2020. http://www.theses.fr/2020UBFCK041.

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Une pratique intensive de l'entraînement contre résistance, i.e. avec des charges lourdes et un faible nombre de répétitions, peut soumettre les sportifs à des charges d'entraînement élevées qui peuvent conduire à des blessures. Afin d'éviter l'apparition de ces blessures ou de limiter le désentraînement dans le cas contraire, des méthodes alternatives d’entraînement ont été développées. Ces méthodes ont une double cible puisqu'elles permettent aussi de faire pratiquer certaines populations qui, suite à différentes pathologies ou traumatismes, ne peuvent pas s’exercer normalement. Cette thèse

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41

Hodgson, D. A. "The short and long term electric strength of polyethylene insulation." Thesis, University of Southampton, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384272.

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42

Olcoski, Thays Allana. "Efeito da adição de MgO na síntese de mulita “in situ”." Universidade Estadual de Ponta Grossa, 2018. http://tede2.uepg.br/jspui/handle/prefix/2754.

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Submitted by Angela Maria de Oliveira (amolivei@uepg.br) on 2019-03-11T20:36:23Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) THAYS ALLANA OLCOSKI.pdf: 2638999 bytes, checksum: 786ecaaa8b03350890f4a8a81ad27819 (MD5)<br>Made available in DSpace on 2019-03-11T20:36:23Z (GMT). No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) THAYS ALLANA OLCOSKI.pdf: 2638999 bytes, checksum: 786ecaaa8b03350890f4a8a81ad27819 (MD5) Previous issue date: 2018-10-30<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Supe

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43

Evitts, Lee J. "Electric monopole transition strengths in the stable nickel isotopes." Thesis, University of Surrey, 2017. http://epubs.surrey.ac.uk/841703/.

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A series of measurements of stable nickel isotopes were performed at the Australian National University in Canberra. Excited states in 58,60,62Ni were populated via inelastic scattering of proton beams delivered by the 14UD Pelletron accelerator. Multiple setups were used in order to determine the structure of low-lying states. The CAESAR array of Compton-suppressed HPGe detectors was used to measure the (E2/M1) mixing ratio of transitions from angular distributions of gamma rays. The Super-e spectrometer was used to measure conversion coefficients for a number of J to J transitions. The data

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44

Sebillotte, Eric. "Dégradation sous champ électrique alternatif du polypropylène imprégné : influence des époxydes." Grenoble INPG, 1989. http://www.theses.fr/1989INPG0032.

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Vieillissement de condensateurs moyenne tension dit "tout film" au polypropene impregne: influence d'epoxydes comme additif au liquide d'impregnation (ralentissement des mecanismes conduisant au vieillissement du film, inities dans une couche de liquide de quelques mu d'epaisseur entre le film et l'electrode). Etude sur des modeles de condensateurs a geometrie plane. Mesure de la rigidite dielectrique du film impregne

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45

Bate, Bate. "Engineering behavior of fine-grained soils modified with a controlled organic phase." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/39627.

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Organic materials are ubiquitous in the geologic environment, and can exert significant influence over the interfacial properties of minerals. However, due to the complexity in their structure and interaction with soil solids, their impact has remained relatively unquantified. This study investigated the engineering behaviors of organoclays, which were synthesized in the laboratory using naturally occurring clay minerals and quaternary ammonium compounds of controlled structure and density of loading. Organic cations were chosen to study the effects of functional group structure and size. The

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46

González-Miret, Zaragoza Luis. "Exploring dipole electric strength functions through QRPA : Systematic calculations and other developments." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASP146.

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La quête d'une description microscopique complète du noyau atomique reste un problème ouvert après près d'un siècle de recherche. Les divers phénomènes présents dans le noyau, qui découlent principalement de sa nature quantique à plusieurs corps, ont conduit à la prolifération de modèles, chacun se spécialisant dans la description d'un ensemble donné de caractéristiques nucléaires. Pour comprendre pleinement le comportement collectif d'un point de vue microscopique, il est essentiel d'aller au-delà de l'approche statique du champ moyen. Toutefois, en raison principalement du coût de calcul éle

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47

Ouvrard, Blanche. "Matériaux conducteurs à haute limite d’élasticité dans le système Cu-Mg : élaboration, caractérisation et modélisation." Thesis, Bordeaux 1, 2013. http://www.theses.fr/2013BOR14860/document.

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Les alliages conducteurs à haute tenue mécanique sont utilisés dans de nombreux domaines tels que le transport, l’énergie et l’industrie électronique. La demande en ces matériaux est croissante. Les alliages Cu-Be constituent à l’heure actuelle les matériaux conducteurs les plus résistants mais posent un problème de toxicité et de coût. Pour proposer une alternative à ces derniers, nous avons étudié des alliages Cu-Mg hypo-eutectiques. Deux voies de synthèse ont été utilisées afin d’obtenir des composites endogènes possédant une combinaison originale de propriétés structurelles et fonctionnell

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48

Wattez, Thomas. "Détermination sous champ électrique du coefficient de diffusion effectif de l'eau au sein d'un matériau à base de liant hydraulique." Thesis, Toulouse, INSA, 2013. http://www.theses.fr/2013ISAT0032/document.

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La sûreté du stockage des déchets radioactifs repose en grande partie sur la capacité de confinement du conteneur et de l’ouvrage qui lui sont dédiés. Dans le cas des déchets radioactifs de Faible et Moyenne Activité à Vie Courte (FMA-VC), cette propriété de confinement, assurée par des matrices solides à base de matériaux cimentaires, est mesurée sur la base d’un essai de diffusion naturelle, consistant à faire traverser un traceur, de type radioactif, dans un échantillon représentatif, duquel on retire, a posteriori, un coefficient de diffusion. L’évolution de ces matériaux et les améliorati

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49

Tufekci, Sinan. "Combined Surface-Wave and Resistivity Imaging for Shallow Subsurface Characterization." Ohio University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1250891786.

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50

Ylä-Mella, J. (Jenni). "Strengths and challenges in the Finnish waste electrical and electronic equipment recovery system:consumers’ perceptions and participation." Doctoral thesis, Oulun yliopisto, 2015. http://urn.fi/urn:isbn:9789526209821.

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Abstract The production and use of electrical and electronic equipment (EEE) have significantly increased during the last three decades due to technological innovations and new applications of EEE. Fast technological progress, EEE becoming a part of everyday life and rising incomes have led to the situation where EEE are more replaceable than ever causing the rapid growth of waste electrical and electronic equipment (WEEE). In order to reduce negative environmental and health impacts and to improve the recovery of valuable substances from WEEE, the European Union has implemented Directives rel

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