Relevant bibliographies by topics / Core loss / Dissertations / Theses
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Dissertations / Theses on the topic 'Core loss'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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1

Zhang, Xingxing. "STRANDED CORE TRANSFORMER LOSS ANALYSIS." UKnowledge, 2008. http://uknowledge.uky.edu/gradschool_theses/533.

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We will present the approaches used to investigating the power loss for the stranded core transformers. One advantage of using stranded core is to reduce power loss or enhance transformer efficiency. One difficulty in the modeling of this type of transformer is that the core is not solid (there are small gaps between core wires due to circular cross section). A two dimensional finite element method with nodal basis function for magnetostatic field was developed to study the effects of the small gaps between core wires. The magnetic flux densities are compared for the uniform (solid) cores and
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2

Mu, Mingkai. "High Frequency Magnetic Core Loss Study." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/19296.

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The core used to build power inductors and transformers are soft magnetic materials. When there is alternating external field, the magnetic moments rotate and consume energy, which is the core loss. The core loss depends on the AC flux frequency, amplitude, waveform, DC bias and temperature. These dependences are nonlinear and difficult to predict. How to measure, model and analyze the core loss is a challenge for decades. <br />In this dissertation, two new core loss measurement methods are introduced first. These two methods use the reactive cancellation concept to reduce the sensitivity to
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3

Peña, Manchón Francisco Javier de la. "Advanced methods for Electron Energy Loss Spectroscopy core-loss analysis." Paris 11, 2010. http://www.theses.fr/2010PA112379.

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Les microscopes électroniques en transmission modernes sont capables de fournir une grande quantité d'informations sous la forme de jeux de données multi-dimensionnelles. Bien que les procédures développées pour l'analyse des spectres uniques soient utilisables pour le traitement de ces données, le développement de techniques plus avancées est indispensable pour une exploitation optimale de ces informations hautement redondantes. Dans ce contexte, nous avons exploré des alternatives aux méthodes standard de quantification, et cherché à optimiser les acquisitions expérimentales afin d'améliorer
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4

Dunlop, Colin J. "Modeling magnetic core loss for sinusoidal waveforms." Thesis, Monterey, California. Naval Postgraduate School, 2008. http://hdl.handle.net/10945/3697.

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CIVINS<br>Among the challenging unsolved technical problems that have plagued the minds of scientist and engineers throughout the 20th and 21st century is the development of a quantifiable model to accurately estimate or explain Core Power Losses (CPL). Theoretical advances in magnets led to many model proposals, but as these models were experimentally examined, they quickly lost their validation. Many of the current models use manufacturer's material estimates to form limited curve fitted equations. These equations are only valid for a specific waveform over a specified range. Unless the desi
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5

Dunlop, Colin J. (Colin James). "Modeling magnetic core loss for sinusoidal waveforms." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/44863.

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Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.<br>Includes bibliographical references (leaves 90-91).<br>Among the challenging unsolved technical problems that have plagued the minds of scientist and engineers throughout the 20th and 21st century is the development of a quantifiable model to accurately estimate or explain Core Power Losses (CPL). Theoretical advances in magnets led to many model proposals, but as these models where experimen
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Dunlop, Colin J. "Modeling nagnetic core loss for sinusoidal waveforms." (2 MB), 2008. http://handle.dtic.mil/100.2/ADA488218.

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Thesis (Naval Engineer and M.S. in Electrical Engineering)--Massachusetts Institute of Technology, June 2008.<br>"June 2008." Description based on title screen as viewed on August 26, 2009. DTIC Descriptor(s): Power, Magnetic Cores, Losses, Theses, Sinusoidal Functions, Curve Fitting, Equations, Waveforms, Models, Experimental Data. DTIC Identifier(s): CPL (Core Power Losses). Includes bibliographical references (p. 90-91). Also available in CD-ROM format.
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7

Manyage, Marubini J. "Application of improved core loss formulations to machine design." Doctoral thesis, University of Cape Town, 2008. http://hdl.handle.net/11427/5173.

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Includes abstract.<br>Includes bibliographical references (p. 117-120).<br>The primary focus of this thesis is in core loss measurement and modeling techniques and their impact in machine design. In practice, steel manufacturers usually supply core loss data either at 50/60Hz, 1.5T or curves (core loss vs. flux density) at 50 and/or 60Hz. There is growing need for lamination characterization at high flux densities (2T) and high frequencies (3.2 kHz) for novel electric machine designs operating at high speeds. The core loss measurement concept is reviewed first. Two core loss measurement formul
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8

Mazurek, Rafal. "Effects of burrs on a three phase transformer core including local loss, total loss and flux distribution." Thesis, Cardiff University, 2012. http://orca.cf.ac.uk/49661/.

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This thesis examines the effects of burrs on performance of transformer cores through application of artificial burrs, measurements of overall specific total loss and local specific total loss, measurements of flux density redistribution caused by burrs and through development of eddy current loss model incorporating two dimensional eddy current losses and flux density distribution within a conductive sample. A clamping system was designed for application of artificial burrs in a completely repeatable and reversible manner. Various burr sizes and arrangements were investigated to confirm the e
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9

Tekgun, Burak. "Analysis, Measurement and Estimation of the Core Losses in Electrical Machines." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1481047992739036.

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10

Huo, Xi Ting (Bob). "New Model of Eddy Current Loss Calculation and Applications for Partial Core Transformers." Thesis, University of Canterbury. Electrical and Computer Engineering, 2009. http://hdl.handle.net/10092/3631.

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This thesis first explains the eddy current and the phenomenon of skin effect, where the resultant flux flows near the surface of the metal. A new flux direction perspective is created for steel laminations, from which derivations of the eddy current resistance and power losses in different directions are developed assuming uniform flux conditions. The developed method compares with a proposed theory through experimental data. The results from the comparison support the validity of the developed derivations. Two uniform flux generators and their billets construction are introduced. The power l
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11

Numkam, Fokoua Eric Rodrigue. "Ultralow loss and wide bandwidth hollow-core photonic bandgap fibres for telecom applications." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/383000/.

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Light guidance in air has significant potential in diverse photonics applications, one of hich is optical communications where it may be key to achieving lower attenuation and optical nonlinearity than in conventional silica fibres. This thesis presents research conducted as part of the EU FP7 project MODEGAP, and is concerned with the design of hollow-core photonic bandgap fibres (HC-PBGFs) with low loss and wide bandwidths suitable for high capacity data transmission. In these fibres, loss is dominated by scattering from surface roughness and is subject to the design of the fibre cross-secti
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12

Granberg, Sarah. "Functioning and disability in adults with hearing loss : the preparatory studies in the ICF Core sets for hearing loss project." Doctoral thesis, Örebro universitet, Institutionen för hälsovetenskap och medicin, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-45274.

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Hearing loss (HL) is a health condition that affects more than 360 million people worldwide. The findings from previous research point at the adverse relationship between adults with hearing loss and important aspects of everyday life such as social relations, communication and work-related tasks. However, the overall picture concerning the functional and disabling aspects of adults with HL re- mains incomplete. To identify the functional and disabling aspects, a conceptual and/or theoretical framework is required. The International Classification of Functioning, Disability and Health (ICF) of
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13

Harner, Mary. "Characterization of the mid-infrared wavelength dependent loss in hollow core photonic crystal fibers." Thesis, Kansas State University, 2015. http://hdl.handle.net/2097/18928.

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Master of Science<br>Department of Physics<br>Brian Washburn<br>This research sought to characterize the length dependent loss of hollow core photonic crystal fibers (HC-PCF) in the mid-infrared. These fibers are used in gas-filled fiber lasers that operate in the mid-infrared range. A black body source which provided a broad mid-infrared spectrum was coupled into a HC-PCF and a fiber cut-back method was implemented to make the length dependent loss measurement. A monochromator was used to observe narrow bands of the broad spectrum provided by the black body source and the loss as a function
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14

Bülow, Fredrik. "A Generator Perspective on Vertical Axis Wind Turbines." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-197855.

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The wind energy conversion system considered in this thesis is based on a vertical axis wind turbine with a cable wound direct drive PM generator. Diode rectifiers are used to connect several such units to a single DC-bus and a single inverter controls the power flow from the DC-bus to a utility grid. This work considers the described system from a generator perspective i.e. the turbine is primarily seen as a torque and the inverter is seen as a controlled load. A 12 kW VAWT prototype with a single turbine has been constructed within the project. The power coefficient of this turbine has been
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15

Han, Ping. "Characterization of MnZn ferrite materials and finite element method for MnZn ferrite core loss calculations." Thesis, This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-06082009-170857/.

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16

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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17

Wang, Yiren. "Modelling and characterisation of losses in nanocrystalline cores." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/modelling-and-characterisation-of-losses-in-nanocrystalline-cores(eddd2c60-7322-4665-9176-b45e53621285).html.

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Increasing the power density of the DC-DC converters requires the size and weight of the magnetic components, such as inductors and transformers, to be reduced. In this thesis, the losses in nanocrystalline inductor cores are characterised and analysed, including the traditional core loss and the gap loss caused by the air gap fringing flux. The loss calculations will form a basis for the design and optimisation of high power inductors for DC-DC converters for EV applications. This thesis first characterises experimentally the core losses in four nanocrystalline cores over a range of operating
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18

Chew, En Phin. "Superconducting Transformer Design and Construction." Thesis, University of Canterbury. Electrical and Computer Engineering, 2010. http://hdl.handle.net/10092/4977.

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This thesis first outlines the testing undertaken on a partial core superconducting transformer under open circuit, short circuit, full load and endurance test conditions. During the endurance test, a failure occurred after 1 minute and 35 seconds. During the failure, voltage dipping and rapid liquid nitrogen boil off was observed. This prompted a failure investigation which concluded that the lack of cooling in the windings was the most probable cause to the failure. Full core transformer and superconductor theories are then introduced. A copper winding transformer model, based on a Steinmetz
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19

Nichol, Robert M. "THE INTERPRETATION OF ELECTRON ENERGY-LOSS SPECTROSCOPY IN COMPLEX SYSTEMS: A DFT BASED STUDY." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1431145968.

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20

Dadashzadeh, Neda. "Improved performance of an optically pumped mid-infrared acetylene-filled hollow-core fiber laser." Diss., Kansas State University, 2017. http://hdl.handle.net/2097/36259.

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Doctor of Philosophy<br>Department of Physics<br>Kristan L. Corwin<br>The focus of this research is improving the pulse output energy of a mid-IR pulsed acetylene-filled Hollow-core Optical Fiber Gas LASer (HOFGLAS) system. Pump pulses and acetylene molecules interact with each other inside hollow-core photonic crystal fiber that effectively confines light and allows for strong gain. This results in lasing at 3.11 μm and 3.17 μm lines based on population inversion of acetylene molecules, which are optically pumped at rotational-vibrational overtones near 1.5 μm using 1 ns pulse duration from a
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21

Janáček, Martin. "Energetické parametry jednofázových asynchronních motorů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242197.

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The master's thesis deals and introduces a single-phase inductions machines, the principle of operation, types of design and operating conditions. This thesis includes analysis of individual losses in the machine and reduce the possibility of different ways. After a theoretical proposal for reducing losses are measured by mass-produced single-phase induction machine. Further machine modifications proposed for reducing losses in the stator windings and designed a prototype machine with the adjustment of the magnetic circuit to reduce iron losses made by ATAS elektromotory Nachod a.s. The result
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22

Miodrag, Milutinov. "Modelovanje, simulacija i merenje snage gubitaka u feritnim jezgrima u frekvencijskom opsegu do 1 GHz." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2017. https://www.cris.uns.ac.rs/record.jsf?recordId=104000&source=NDLTD&language=en.

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U radu je predložena modifikovana vatmetarska metoda za merenje snage gubitaka u toroidnim feritnim jezgrima koja je prilagođena osciloskopima male ulazne impedanse. Metoda je verifikovana na komercijalnim uzorcima od Mn-Zn i Ni-Zn feritnih materijala. Metoda je upotrebljena za merenje kompleksne permeabilnosti i gustine snage gubitaka dodatno obrađenih komercijalnih Mn-Zn feritnih prahova. Utvrđeno je da se dodatnim tehnološkim procesima (mlevenjem i prosejavanjem) početnog komercijanog praha mogu napraviti feritna jezgra manje gustine snage gubitaka i veće permeabilnosti.<br>The thesis propo
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23

Guenfoud, Nassardin. "On the multi-scale vibroacoustic behavior of multi-layer core topology systems." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEC010.

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Les panneaux sandwichs en nid d'abeille ont fait l'objet d'intenses recherches ces dernières décennies. En effet, outre leurs bonnes performances mécaniques et leur rapport rigidité poids faible, il en résulte une baisse importante des propriétés acoustiques. Ainsi, de nombreux designs sont régulièrement proposés afin de palier à cette problématique. En parallèle, différents modèles sont développés afin de modéliser des structures de plus en plus complexes, en utilisant notamment les propriétés périodiques dans le but d’étudier la propagation des ondes. Cette dernière permet une étude approfon
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24

Shen, Wei. "Design of High-density Transformers for High-frequency High-power Converters." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/28280.

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Moore's Law has been used to describe and predict the blossom of IC industries, so increasing the data density is clearly the ultimate goal of all technological development. If the power density of power electronics converters can be analogized to the data density of IC's, then power density is a critical indicator and inherent driving force to the development of power electronics. Increasing the power density while reducing or keeping the cost would allow power electronics to be used in more applications. One of the design challenges of the high-density power converter design is to have high-
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25

Cramer, Matthew Nathaniel. "The Contribution of Body Morphology to Individual Variability in the Thermoregulatory Responses to Exercise, and the Effect of Altered Skin Blood Flow on Heat Loss Potential." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32901.

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Three studies were performed to examine biophysical sources of individual variability in the thermoregulatory responses to exercise, and the influence of skin blood flow on heat loss potential during severe heat stress. Study 1 investigated whether unbiased comparisons of changes in rectal temperature (ΔTre) should be compared at a fixed absolute rate of heat production (Hprod; W) or a fixed Hprod per unit mass (W/kg), and whether local sweat rates (LSR) should be compared at a fixed evaporative requirement for heat balance (Ereq; W) or a fixed Ereq per unit of surface area (W/m2), between ind
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26

Kim, Jooncheol. "Fabrication of nano-laminated soft magnetic metallic alloys through multilayer electrodeposition: application to high-frequency and high-flux power conversion." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53958.

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In this research, in order to realize such nanolaminated magnetic cores for high frequency and high power conversion, the following key tasks have been accomplished: 1) electrodeposition of metallic alloy materials such as NiFe, CoNiFe, and anisotropic CoNiFe; 2) development of new fabrication technologies to realize nanolaminated cores based on metallic alloy electrodeposition; 3) reliable characterization of the structural, magnetic, and electrical properties of the nanolaminated metallic alloy cores; 4) development of microfabricated inductor windings to integrate the nanolaminated cores; 5
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Penin, Rémi. "Evaluation à priori des performances environnementales d'un noyau magnétique de transformateur triphasé sur la base de tests simplifiés." Thesis, Artois, 2014. http://www.theses.fr/2014ARTO0209/document.

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Le transformateur est aujourd’hui l’un des convertisseurs statiques les plus utilisé notamment dans la distribution électrique. Les tôles magnétiques servant à la construction de leurs circuits magnétiques sont devenues de plus en plus performantes permettant une réduction des pertes produites. Néanmoins, les tests normalisés permettant de caractériser les tôles magnétiques ne reflètent pas totalement le comportement énergétique du transformateur. De plus, une autre problématique a gagné en importance durant ces dernières années : le bruit acoustique émis. Malheureusement, il n’y pas encore de
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28

Yang, Minhao. "Conception rationnelle de nano-hybrides de carbone 1D pour l'application de nanocomposites diélectriques." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLC088/document.

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Les nanocomposites polymères diélectriques ayant une constante diélectrique élevée et une faible perte diélectrique ont reçu un grand intérêt pour une utilisation dans le domaine du condensateur électrostatique. De manière générale, les performances diélectriques améliorées des nanocomposites sont déterminées par le type et la nature des polymères et des nanocharges sélectionnés, ainsi que par l'effet de couplage interfacial entre les matrices et les nanocharges. Parmi ces facteurs, les propriétés physiques, les géométries et les structures des composants des nanocharges jouent un rôle essenti
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Hou, Dongbin. "Very High Frequency Integrated POL for CPUs." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/77608.

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Point-of-load (POL) converters are used extensively in IT products. Every piece of the integrated circuit (IC) is powered by a point-of-load (POL) converter, where the proximity of the power supply to the load is very critical in terms of transient performance and efficiency. A compact POL converter with high power density is desired because of current trends toward reducing the size and increasing functionalities of all forms of IT products and portable electronics. To improve the power density, a 3D integrated POL module has been successfully demonstrated at the Center for Power Electronic S
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30

Lew, Cynthia S. "Loss of the Lipopolysaccharide Core Biosynthesis rfaD Gene Increases Antimicrobial Chemokine Binding and Bacterial Susceptibility to CCL28 and Polymyxin: A Model for Understanding the Interface of Antimicrobial Chemokines and Bacterial Host Defense Avoidance Mechanisms." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3756.

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In order to better understand the mechanism of antimicrobial chemokine activity, including binding to and killing of bacteria, random transposon mutagenesis was performed in Yersinia pseudotuberculosis. Resulting mutants were screened for increased binding to chemokine and high binding clones were selected for further study. One mutant, designated mutant 27, was found to have a single insertion mutation in the rfaD gene. The rfaD gene product is involved in heptose biosynthesis, one of the sugars of the inner core oligosaccharide of Gram- negative lipopolysaccharide (LPS). Mutant 27 was found
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31

Ibrar, Ibrar. "Study of the effect of temperature on the metrological characteristics of Inductive Current Transformers." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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The presented thesis focused on the study of effect of temperature and different loading condition of an inductive current transformer for medium voltage purposes. Equivalent circuit parameters behavior of the current transformer is analyzed for two different temperatures 24°C and 60°C and varying working conditions (current and voltage). Application of Short Circuit and Open circuit test is done for the current transformer under test with varying loading conditions and two temperatures of interest. Interesting behavior of the shunt parameters of the current transformers are of most attention
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32

Čedo, Žlebič. "Uticaj jednosmerne struje na karakteristike podešljivih feritnih komponenti." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2019. https://www.cris.uns.ac.rs/record.jsf?recordId=110180&source=NDLTD&language=en.

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U okviru doktorske disertacije, realizovane su podešljive feritne komponente sa jezgrima koja su proizvedena od komercijalno dostupnih ESL 40011 feritnih traka čije se induktivnosti podešavaju primenom jednosmerne struje. Rad realizovanih podešljivih feritnih komponenti je verifikovan u kolu DC-DC konvertora podizača napona. U disertaciji je predložena merna metoda koja omogućava ispitivanje uticaja jednosmerne struje na karakteristike SMD induktora postavljenih u realnom okruženju. Metoda je verifikovana na komercijalno dostupnim SMD induktorima.<br>As part of this thesis variable ferite comp
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Barlow, McKenzie Lee. "Comparative Analysis of Physiological Measurements and Environmental Metrics on Predicting Heat Stress Related Events." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1906.

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Exposure to high heat and humidity can lead to serious health risks, including heat exhaustion and heat stroke. Wet Bulb Globe Temperature (WBGT) and heat index have historically been used to predict heat stress events, but individualized factors are not included in the measurement. It has been shown that there is a relationship between cardiovascular measurements and heat stress, which could be used to measure heat stress risk on an individual level. Research has been done to find relationships between cardiovascular metrics in a workplace environment, however the study did not include the us
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Zagheli, Hossein Rahmatizadeh. "Flux and loss distribution in machine stator cores." Thesis, Cardiff University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316343.

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Aguirre, Rosa M. "PERSONAL LOSS AND MENTAL ILLNESS: CAN SOCIAL NETWORKS HELP YOUNG ADULTS AND PARENTS COPE?" Bowling Green, Ohio : Bowling Green State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=bgsu1174922228.

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36

Hogancamp, II Charles Everett. "Loss of Sympathetic Control of Cardiovascular Function Following Spinal Cord Injury." UKnowledge, 2004. http://uknowledge.uky.edu/gradschool_theses/198.

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Cardiovascular control in the human is significantly impaired after spinal cord injury(SCI) having a direct effect on the sympathetic nervous system (SNS) causing an inability toregulate vasoconstriction below the level of the lesion. The effects of SCI on the two majorcomponents of blood pressure regulation, control of plasma volume and neural control of theheart and peripheral vasculature are poorly understood. In particular, no index to diagnosedisorders to autonomic control of the heart and vasculature has been developed. The presentstudy primarily utilized noninvasively acquired, easily a
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Smith, Chad Lee Smeda R. J. "Weed management and nitrogen loss in glyphosate-resistant corn (Zea mays)." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6568.

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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on January 22, 2010). Thesis advisor: Dr. Reid J. Smeda. Includes bibliographical references.
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He, Justin. "Delayed Developmental Loss of Regeneration in Xenopus laevis tadpoles." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1618040083764443.

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Whalley, Katherine Ann. "Neurogenesis and apoptosis in the developmentally regulated loss of spinal cord regeneration." Thesis, University College London (University of London), 2006. http://discovery.ucl.ac.uk/1445145/.

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Unlike the adult mammal, the chick can successfully regenerate its spinal cord until embryonic day (E) 13. Multiple factors may contribute to the subsequent loss of regenerative capacity, although most research has concentrated on axonal re-growth inhibition as a key issue. The number of viable cells remaining in the spinal cord could also be important and may be affected by cell survival and cell replacement. In this thesis the early response of the chick spinal cord to injury has been investigated, focusing on cell death and the potential to replace lost cells by neurogenesis. Pharmacologica
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Prenovost, Mary Angela. "How low-income individuals plan for and cope with government support loss." Thesis, Boston College, 2009. http://hdl.handle.net/2345/740.

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Thesis advisor: Gilda Morelli<br>Although trying to survive on a low income is challenging for all individuals, the experience of losing government supports can propel households into a crisis situation which may cause them to act or react in distinctive ways. This study used a survey of 78 low-income women followed by in-depth interviews with 18 of these women to explore how two groups of women--those close to losing government supports (i.e., within three months) and those further from losing government supports (i.e., experienced at least one year ago)--plan for and cope with financially vu
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Pereira, Miguel Ramos. "Time diversity solutions to cope with lost packets." Doctoral thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/9368.

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A dissertation submitted to Departamento de Engenharia Electrotécnica of Faculdade de Ciências e Tecnologia of Universidade Nova de Lisboa in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Engenharia Electrotécnica e de Computadores<br>Modern broadband wireless systems require high throughputs and can also have very high Quality-of-Service (QoS) requirements, namely small error rates and short delays. A high spectral efficiency is needed to meet these requirements. Lost packets, either due to errors or collisions, are usually discarded and need to be retransm
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Nygård, Johan. "Schedule Based Code Generation for ParallelProcessors." Thesis, Växjö University, School of Mathematics and Systems Engineering, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-222.

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<p>Dynamic model driven architecture (DMDA) is a architecture made to aid in the</p><p>development of parallel computing code. This thesis is applied to an implementation of</p><p>DMDA known as DMDA3 that should convert graphs of computations into efficient</p><p>computation code, and it deals with the translation of Platform Specific Models (PSM)</p><p>into running systems. Currently DMDA3 can generate schedules of operations but not</p><p>finished code.</p><p>This thesis describes a DMDA3 module that turns a schedule of operations into a</p><p>runable program. Code was obtained from the DMDA
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Bilyk, Thomas. "Caractérisation des effets de surface, de désordre et d'empilement de feuillets dans le MXène Ti₃C₂Tₓ par microscopie électronique en transmission". Thesis, Poitiers, 2021. http://www.theses.fr/2021POIT2260.

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Les effets de chimie de surface, de désordre et d'empilement jouent des rôles majeurs sur les propriétés des MXènes. L'étude de ces effets sur la structure électronique représente donc un enjeu fondamental pour ces matériaux. La microscopie électronique en transmission permet de sonder celle-ci à des échelles allant du micromètre au nanomètre, notamment grâce à la spectroscopie de perte d'énergie des électrons (EELS). Cette étude se focalise majoritairement sur le MXène Ti₃C₂Tₓ avec T les groupements fonctionnels.Un premier objectif fut l'étude des informations accessibles sur la chimie de sur
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Santos, Rui Manuel Machado. "Dinâmica óssea no conceito cone Morse: revisão bibliográfica." Master's thesis, [s.n.], 2010. http://hdl.handle.net/10284/2399.

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Trabalho apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Medicina Dentária<br>Introdução: Implantes com plataforma tipo Cone Morse (CM) baseiam-se no princípio mecânico do “cone dentro de cone” que proporciona uma grande superfície de contacto entre o pilar protético e o implante. Vários autores concluíram que o uso destes implantes representa um procedimento de sucesso na reabilitação de arcos totais ou parcialmente edêntulos. Objectivo: Abordar as vantagens da utilização do implante CM, enquadrando-as no contexto biomecânico e microbio
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Carter, Michele R. "Gray leaf spot of corn : yield loss and evaluation of germplasm for resistance /." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-10062009-020049/.

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Chulvi, Medrano Iván. "Actividad de los músculos paravertebrales durante ejercicios que requieran estabilidad raquídea." Doctoral thesis, Universitat de València, 2011. http://hdl.handle.net/10803/81393.

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CONTEXTO: El entrenamiento aplicando elementos de inestabilidad está siendo ampliamente utilizado en el campo del entrenamiento como una herramienta novedosa y eficaz. No obstante, recientes hallazgos aportan datos contrarios a esta creencia y sugieren que la ejecución de ejercicios tradicionales sobre superficies inestables o ejercicios calisténicos específicos para el fortalecimiento estabilizador pueden no resultar estímulo suficiente para personas con un nivel de entrenamiento elevado llegando incluso a interferencia en el rendimiento final por la reducción de la capacidad de fuerza y la c
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Elsabrouty, Maha. "Receiver-based packet loss concealment for pulse code modulation (PCM G.711) coders." Thesis, University of Ottawa (Canada), 2002. http://hdl.handle.net/10393/6306.

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Voice-over-IP (VoIP), the transmission of packetized voice over IP networks, is gaining much attention as a possible alternative to conventional Public Switched Telephone Networks (PSTN). However, impairments present on IP networks, namely jitter, delay and channel errors can lead to the loss of packets at the receiving end. This packet loss degrades the speech quality. Model-based coders, especially G.729-A and G.723.1 International Telecommunication Union (ITU-T) Standards, have been extensively used for speech coding over IP networks because of their inherent ability to recover from erasure
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Boschi, Chiara. "Building Lost City : serpentinization, mass transfer, and fluid flow in an oceanic core complex /." Zürich : ETH, 2006. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=16720.

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Román, Moraga Nelson José. "Distribución y ocurrencia de oro en los depósitos tipo pórfido cobre-molibdeno y cobre-oro en los Pelambres, Chile Central." Tesis, Universidad de Chile, 2013. http://www.repositorio.uchile.cl/handle/2250/115550.

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Geólogo<br>El conjunto Los Pelambres-Frontera, ubicado en Chile central, a 190 km al norte de Santiago, es un sistema de pórfido gigante, de edad Mioceno tardío - Plioceno temprano, conformado por el depósito tipo pórfido Cu-Mo Los Pelambres y por el depósito tipo pórfido cuprífero Frontera. En este trabajo se presenta un estudio de la distribución y ocurrencia de Au en ambos pórfidos, aspectos que no han sido explorados en detalle con anterioridad. El presente estudio tiene dos líneas de trabajo principales: la primera es el estudio de información sobre Au de previa disposición, mientras que
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Bernales, Rojas Gerardo. "Válidez jurídica de los autos acordados de los tribunales superiores de justicia." Tesis, Universidad de Chile, 2000. http://www.repositorio.uchile.cl/handle/2250/114108.

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Tesis (magister en derecho mención derecho público)<br>No autorizada por el autor para ser publicada a texto completo<br>La presente tesis pretende abordar un tema respecto del cual no se ha escrito mucho, y lo que se ha hecho ha terminado concluyendo, en general, que los auto acordados que regulan garantías y procedimientos son inconstitucionales, y por lo tanto, carecen de validez jurídica. Dicha situación presenta la curiosiad que, no obstante las conclusiones, no se discute ni se impugna, en la realidad de tribunales, de ahí el interés en replantear un estudio que, a priori, postula la va
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