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Dissertations / Theses on the topic 'State of Charge (SOA)'

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Published: 3 June 2025

Last updated: 19 July 2025

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1

Samolyk, Mateusz, and Jakub Sobczak. "Development of an algorithm for estimating Lead-Acid Battery State of Charge and State of Health." Thesis, Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-2937.

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In this paper, a state of charge (SOC) and a state of health (SOH) estimation method for lead-acid batteries are presented. In the algorithm the measurements of battery’s terminal voltage, current and temperature are used in the process of SOC calculation. The thesis was written in cooperation with Micropower AB. The algorithm was designed to fulfill the specific requirements of the electric vehicles application: an error below 5% of SOC, computational simplicity and the possibility of being implemented in a basic programming languages. The current used method at Micropower, Coulomb counting,

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2

Pola, Contreras Daniel. "An improved prognosis strategy with temperature dependent state-space model for the analysis of the state-of-health and state-for-charge in lithium-ion batteries." Tesis, Universidad de Chile, 2014. http://www.repositorio.uchile.cl/handle/2250/130476.

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Magíster en Ciencias de la Ingeniería, Mención Eléctrica<br>Ingeniero Civil Eléctrico<br>Actualmente existe una gran cantidad de equipos y dispositivos que utilizan baterías como su fuente primaria o secundaria de energía. Para estos sistemas es crítico contar con información del desempeño de sus baterías, dado que este conocimiento puede ayudar a tomar decisiones apropiadas y asegurar autonomía en el tiempo. Dos importantes variables que deben ser monitoreadas son el "Estado-de-Salud" (SOH, del inglés State-of-Health) y el "Estado-de-Carga" (SOC, del inglés State-of-Charge). Este trabajo se e

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3

Fairweather, Andrew James. "State-of-Health (SoH) and State-of-Charge (SoC) determination in electrochemical batteries and cells using designed perturbation signals." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/9156/.

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4

Quintero, Cedeño Vanessa Lisbeth. "Design of a medium-access-control protocol for wireless sensor networks considering the battery state of charge and state of health." Tesis, Universidad de Chile, 2019. http://repositorio.uchile.cl/handle/2250/170130.

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Tesis para optar al grado de Doctora en Ingeniería Eléctrica<br>La disponibilidad de energía es una de las limitaciones que presentan las Redes de Sensores Inalámbricas (WSN, Wireless Sensor Network). Tradicionalmente, las baterías han sido utilizadas para proveer energía a los nodos de sensores y al tener una vida útil limitada afectan el tiempo de vida de la red. Soluciones como el uso de baterías de gran tamaño o el reemplazo de ellas no son viables, debido al gran número de sensores que componen la red y a que pueden ser desplegados en zonas de difícil acceso. Esta situación ha motivad

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5

Lièvre, Aurélien. "Développement d'un système de gestion de batterie lithium-ion à destination de véhicules "mild hybrid" : détermination des indicateurs d'état (SoC, SoH et SoF)." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10065/document.

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Les véhicules hybrides se démocratisent avec une utilisation croissante des éléments de stockage à base de lithium-ion. Dans ce contexte d'exploitation, le type d'usage est atypique et dépend fortement des stratégies de répartition des énergies au sein du véhicule. Parmi les hybridations, la catégorie "mild hybrid" conserve la motorisation thermique pour l'autonomie qu'elle apporte, et lui adjoint une machine électrique associée à un élément de stockage réversible, afin de permettre une récupération de l'énergie cinétique du véhicule. L'objet de ces travaux porte sur la mise en place d'algorit

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6

Urbain, Matthieu. "Modélisation électrique et énergétique des accumulateurs Li-Ion. Estimation en ligne de la SOC et de la SOH." Thesis, Vandoeuvre-les-Nancy, INPL, 2009. http://www.theses.fr/2009INPL028N/document.

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Ce mémoire traite de la modélisation électrique des accumulateurs lithium-ion, de l’estimation de leur état de charge (SOC) et de leur état de santé (SOH). Le premier chapitre revient sur les généralités concernant la technologie lithium-ion : caractéristiques, performances, constitution de l’élément de stockage, choix et nature des électrodes, conséquences qui en découlent d’un point de vue énergétique. Le principe de fonctionnement et les équations générales des phénomènes électrochimiques sont aussi développés. Des exemples d’application dans différents secteurs industriels sont ensuite pro

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7

Nazer, Rouba Al. "Système de mesure d'impédance électrique embarqué, application aux batteries Li-ion." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT007/document.

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La mesure d'impédance électrique en embarqué sur véhicule est un sujet clé pour améliorer les fonctions de diagnostic d'un pack batterie. On cherche en particulier à fournir ainsi des mesures supplémentaires à celles du courant pack et des tensions cellules, afin d'enrichir les indicateurs de vieillissement dans un premier temps, et d'état de santé et de charge dans un second temps. Une méthode classique de laboratoire pour obtenir des mesures d'impédance d'une batterie est la spectroscopie d'impédance électrochimique (ou EIS). Elle consiste à envoyer un signal sinusoïdal en courant (ou tensio

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8

Abdennadher, Mohamed Karim. "Étude et élaboration d’un système de surveillance et de maintenance prédictive pour les condensateurs et les batteries utilisés dans les Alimentations Sans Interruptions (ASI)." Thesis, Lyon 1, 2010. http://www.theses.fr/2010LYO10101/document.

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Pour assurer une énergie électrique de qualité et de façon permanente, il existe des systèmes électroniques d’alimentation spécifiques. Il s’agit des Alimentations Sans Interruptions (ASI). Une ASI comme tout autre système peut tomber en panne ce qui peut entrainer une perte de redondance. Cette perte induit une maintenance corrective donc une forme d’indisponibilité ce qui représente un coût. Nous proposons dans cette thèse de travailler sur deux composants parmi les plus sensibles dans les ASI à savoir les condensateurs électrolytiques et les batteries au plomb. Dans une première phase, nous

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9

Urbain, Matthieu. "Modélisation électrique et énergétique des accumulateurs Li-Ion. Estimation en ligne de la SOC et de la SOH." Electronic Thesis or Diss., Vandoeuvre-les-Nancy, INPL, 2009. http://www.theses.fr/2009INPL028N.

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Ce mémoire traite de la modélisation électrique des accumulateurs lithium-ion, de l’estimation de leur état de charge (SOC) et de leur état de santé (SOH). Le premier chapitre revient sur les généralités concernant la technologie lithium-ion : caractéristiques, performances, constitution de l’élément de stockage, choix et nature des électrodes, conséquences qui en découlent d’un point de vue énergétique. Le principe de fonctionnement et les équations générales des phénomènes électrochimiques sont aussi développés. Des exemples d’application dans différents secteurs industriels sont ensuite pro

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10

Miller, Jason R. "An analysis of the Sea Enterptise program." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05JunMiller.pdf.

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11

Renfrow, Steven N. (Steven Neal). "Charge State Distributions in Molecular Dissociation." Thesis, University of North Texas, 1998. https://digital.library.unt.edu/ark:/67531/metadc278340/.

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12

Boman, Carl. "Embedded impedance based state-of-charge estimation." Thesis, KTH, Maskinkonstruktion (Inst.), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177673.

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Estimating the battery state-of-charge is an important aspect of prolonging battery life and optimizing discharge cycles. In this thesis, a hybrid method for estimating state-of-charge for lead-acid batteries is developed and implemented in a motor controller. The method uses a combination of impedance measurements and a linear regression model for estimation. Measurements are done at stand-still. The method does not require sensors that are external to the motor controller or auxiliary battery connections other than terminal connections. The final estimation model shows good results but exhib

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13

Pradhan, Sulolit. "Solid state charge transfer in nanoparticle solids /." Diss., Digital Dissertations Database. Restricted to UC campuses, 2008. http://uclibs.org/PID/11984.

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14

Waidacher, Christoph. "Charge properties of cuprates: ground state and excitations." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2000. http://nbn-resolving.de/urn:nbn:de:swb:14-998985918593-73513.

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This thesis analyzes charge properties of (undoped) cuprate compounds from a theoretical point of view. The central question considered here is: How does the dimensionality of the CU-O sub-structure influence its charge degrees of freedom? The model used to describe the Cu-O sub-structure is the three- (or multi-) band Hubbard model. Analytical approaches are employed (ground-state formalism for strongly correlated systems, Mori-Zwanzig projection technique) as well as numerical simulations (Projector Quantum Monte Carlo, exact diagonalization). Several results are compared to experimental dat

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15

Waidacher, Christoph. "Charge properties of cuprates: ground state and excitations." Doctoral thesis, Technische Universität Dresden, 1999. https://tud.qucosa.de/id/qucosa%3A24786.

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This thesis analyzes charge properties of (undoped) cuprate compounds from a theoretical point of view. The central question considered here is: How does the dimensionality of the CU-O sub-structure influence its charge degrees of freedom? The model used to describe the Cu-O sub-structure is the three- (or multi-) band Hubbard model. Analytical approaches are employed (ground-state formalism for strongly correlated systems, Mori-Zwanzig projection technique) as well as numerical simulations (Projector Quantum Monte Carlo, exact diagonalization). Several results are compared to experimental dat

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16

Javid, Gelareh. "Contribution à l’estimation de charge et à la gestion optimisée d’une batterie Lithium-ion : application au véhicule électrique." Thesis, Mulhouse, 2021. https://www.learning-center.uha.fr/.

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L'estimation de l'état de charge (SOC) est un point crucial pour la sécurité des performances et la durée de vie des batteries lithium-ion (Li-ion) utilisées pour alimenter les VE.Dans cette thèse, la précision de l'estimation de l'état de charge est étudiée à l'aide d'algorithmes de réseaux neuronaux récurrents profonds (DRNN). Pour ce faire, pour une cellule d’une batterie Li-ion, trois nouvelles méthodes sont proposées : une mémoire bidirectionnelle à long et court terme (BiLSTM), une mémoire robuste à long et court terme (RoLSTM) et une technique d'unités récurrentes à grille (GRU).En util

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17

Bokun, G. S., Ya G. Groda, R. N. Lasovsky, and V. S. Vikhrenko. "Charge Distribution Around Nanoscale Nonhomogeneities in Solid State Ionics." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42717.

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The system of Nernst-Planck-Poisson equations is modified by including the gradient terms in the chemical potential expression. The gradient terms are important in the regions of significant inhomogeneities, e. g. near the interface boundaries. These modified equations are used for investigating the particle density distribution in the vicinity of interphase boundary of a solid electrolyte. The differential equation of the fourth order for the problem of contact between two solid phases is formulated. Its analytic solution which describes non monotonic distribution of charge in both phases is

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18

Lo, Nardo Roberto. "Charge state manipulation of silicon-based donor spin qubits." Thesis, University of Oxford, 2015. http://ora.ox.ac.uk/objects/uuid:29a0f336-82ce-4794-82fe-d7db2802ffc1.

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Spin properties of donor impurities in silicon have been investigated by electron spin resonance (ESR) techniques for more than sixty years. These studies gave us a contribution towards understanding some of the physics of doped semiconductor materials in general, which is the platform for much of our current technology. Despite the fact that donor electron and nuclear spins have been researched for so long, ESR studies of their properties are still giving us interesting insights. With the introduction of the concept of quantum information in the 1980s, some properties of donor spins in silico

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19

Oliveira, Marcelo Manoel de. "Estimativa do estado de carga de baterias em robôs móveis autônomos." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/18/18149/tde-27072016-133537/.

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Cada vez mais robôs móveis autônomos estão sendo utilizados em diversas tarefas e em ambientes com elevado risco para atividades humanas que a paralisação de suas atividades podem gerar outros riscos, perdas e elevados custos. Assim, o estado de carga (SOC) de sistemas de baterias em robôs móveis autônomos é um parâmetro importante na prevenção de uma falha primária nessa aplicação, a ausência de energia. Este trabalho apresenta os métodos existentes na literatura para a determinação do estado de carga de baterias e as tecnologias de baterias disponíveis utilizadas em robôs móveis autônomos ou

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20

Giese, Jon F. "Military innovation : sources of change for United States Special Operations Forces (SOF)." Thesis, Monterey, California: Naval Postgraduate School, 1999. http://hdl.handle.net/10945/13431.

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Today, in the post-Cold War era, each of the U.S. military services and U.S. Special Operations Command (USSOCOM) realizes that in order to remain relevant it must be able to innovate and change. This thesis defines military innovation as a change in the stated roles or missions of the organization to solve current or projected military challenges or threats as defined by the national strategy. The thesis surveys three contending theories of military innovation. It identifies elements from each and develops a hypothesis to explain innovation in U.S. Special Operations Forces (SOF). This hypoth

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21

Swanson, John. "Aspects of charge transport in wide bandgap semiconductors." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330062.

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22

Wilkins, Stuart Brian. "Charge and spin correlations in transition metal oxides." Thesis, Durham University, 2002. http://etheses.dur.ac.uk/4101/.

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Strongly correlated electron systems such as the transition metal oxides have provided important results in condensed matter physics over the past few years. They display intriguing phenomena such as superconductivity, colossal magnetoresistance and stripe ordering due to charge and spin correlations at low temperatures. This thesis presents the study of hole doped nickelate and manganite materials using X-ray scattering over an extended energy range. The development of X-ray scattering at energies ranging from 600 eV up to 130 keV is reported. High energy scattering results, are presented on

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23

Gregory, David. "Charge transfer studies of alkali-metal/semiconductor interfaces." Thesis, University of Liverpool, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240051.

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24

Bartlett, Alexander P. "Electrochemical Model-Based State of Charge and State of Health Estimation of Lithium-Ion Batteries." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1432640190.

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25

Marston, James Paul. "Kinases : charge balance and structural tightening in the transition state." Thesis, University of Sheffield, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.557135.

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Phosphoryl transfer reactions are ubiquitous in biology, and metal fluoride TSA complexes have played a key role in structural approaches to understanding how they are catalysed. These complexes have permitted experimental tests of two hypotheses: the proposal that the balance of charge in the transition state dominates in enzyme catalysed phosphoryl transfer; and the proposal that structural tightening contributes to transition state stabilisation. In this thesis, the nature of the catalytically relevant state of PGK was revealed from analysis of new 19F NMR data, and the previously determine

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26

Saquilayan, Glynnis mae Q., and Glynnis-mae Saquilayan. "Ion charge state distribution in a laser produced bounded plasma." Thesis, https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13059541/?lang=0, 2017. https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13059541/?lang=0.

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A laser ion source was investigated for a laser produced spatially bound plasma and the production of cluster ions. The design of a unique geometry for the target was fabricated to have a hollow cylindrical structure where the plasma is ignited inside the narrow volume. The study clarified the difference in the plasma dynamics of the laser ion source operation using the hollow cylinder target as the plasma was allowed to interact with the target surface. The proposed scheme, aiming to produce a low plasma temperature condition, was observed to the increase the probability for agglomeration and

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27

Miranda, Francisco Marcela. "Assessing vulnerability to sea level rise in the state of São Paulo, Brazil." Thesis, Linköpings universitet, Tema Miljöförändring, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-149065.

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The study aims to assess vulnerability to sea level rise of the municipal population from the coastal region of the state of São Paulo. This vulnerability assessment focus on degrees of vulnerability and what are the main factors that affect vulnerability to sea level rise in the municipalities. The study has included indicators of vulnerability to sea level rise which were represented through vulnerability mapping reflecting the degrees of adaptive capacity, sensitivity, exposure and total vulnerability of the municipalities. The results have shown that São Vicente, São Sebastião, Praia Grand

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28

Alavi, Ali. "Molecular-dynamics studies of thin films and charge-transfer." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358367.

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29

Sasvari, Gyorgy. "Charge generation and injection in double layer organic photoreceptors." Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267529.

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30

Hayes, A. J. "A two phase charge coupled device on gallium arsenide." Thesis, University of Liverpool, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354548.

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31

Martin, Simon James. "Simulations of charge transport in organic light emitting diodes." Thesis, University of Bath, 2002. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250944.

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32

Kassebaum, Paul Gregory. "The Adiabatic Bond Charge Model of Phonons." Digital WPI, 2012. https://digitalcommons.wpi.edu/etd-dissertations/180.

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The dispersion relation between frequency and wavevector of atomic vibrations, or phonons, can be succinctly described by the adiabatic bond charge model, first developed by Weber. The model employs as few as four parameters to fit experiment. We investigated this model in order to better unify the description of the technologically relevant group IV elemental semiconductors (e.g. diamond, silicon, germanium, and gray tin) by replacing an ad hoc parameter introduced by Weber with one arising from quadrupolar interactions between the bond charges, and by fitting the parameters to density functi

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33

Baron, Louise. "Sea level changes in the Oxfordian stage of Britain and France." Thesis, Imperial College London, 1997. http://hdl.handle.net/10044/1/7899.

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34

Schwebel, Michael Bryan. "Climate change adaptation and policy in Pacific small island states| Safe havens or adrift at sea?" Thesis, Temple University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3703089.

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<p> Pacific Small Island States (PSIS) are in the precarious position as some of the first jurisdictions to grapple with the current and forecasted effects of climate change, such as forced migrations and loss of culture. Yet, islanders' viewpoints are neither often fully understood nor heeded by those at the international decision making levels. Therefore, how and to what extent are PSIS successfully preparing for climate change? </p><p> This completed study used a mixed methods approach that examines nissology — how islanders view and understand themselves — and its relationsh

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35

Tachibana, Yasuhiro. "Charge separation and recombination in dye sensitised semiconductor solar cells." Thesis, Imperial College London, 2000. http://hdl.handle.net/10044/1/8787.

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Bassom, Neil James. "Magnetotransport studies of space charge layers in narrow-gap semiconductors." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.291070.

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37

Haywood, Stephanie K. "Breakdown and charge trapping in silicon dioxide films on silicon." Thesis, Middlesex University, 1986. http://eprints.mdx.ac.uk/6542/.

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Several aspects of breakdown and charge trapping in Silicon dioxide (SÌO2) have been studied. Firstly, the locations of charge trapped immediately prior to breakdown and of defects created under the high field stress were established using the photo I-V and avalanche injection techniques. Both positive and negative charge was found and in all cases charge build-up under high field conditions was at the interfaces, not in the bulk of the S1O2. Electron trap creation occurred predominantly near to the non-injecting interface, Qbd, the total charge which can be injected prior to breakdown, was ex

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38

Simons, Benjamin David. "Charge carriers in magnetic Mott insulators : a route to superconductivity." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358784.

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Webb, Mark Adam. "Excited-state charge-transfer dynamics of azurin from resonance Raman spectroscopy." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0012/NQ59696.pdf.

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40

Lindsay, Bernard Gregory. "State selected studies of some charge transfer and dissociative ionization collisions." Thesis, Queen's University Belfast, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317102.

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41

Zhang, Klaus. "Comparison of Nonlinear Filtering Methods for Battery State of Charge Estimation." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1896.

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In battery management systems, the main figure of merit is the battery's SOC, typically obtained from voltage and current measurements. Present estimation methods use simplified battery models that do not fully capture the electrical characteristics of the battery, which are useful for system design. This thesis studied SOC estimation for a lithium-ion battery using a nonlinear, electrical-circuit battery model that better describes the electrical characteristics of the battery. The extended Kalman filter, unscented Kalman filter, third-order and fifth-order cubature Kalman filter, and the sta

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42

Schmidt, Alexander Patrick [Verfasser]. "A Novel Electrochemical Battery Model For State Of Charge And State Of Health Estimation / Alexander Patrick Schmidt." Aachen : Shaker, 2010. http://d-nb.info/1084536315/34.

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43

DE, LEO FRANCESCO. "New methodologies for the characterization of extreme sea states: applications in the Mediterranean Sea." Doctoral thesis, Università degli studi di Genova, 2020. http://hdl.handle.net/11567/999932.

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The sampling of met-ocean variables is crucial for a plethora of applications. In coastal areas, the management of coastal activities and shipping lanes have to account for variations on mean sea level, wave parameters and current velocities, and coastal defences need to be designed according to the severe sea states they will most likely have to face. Similarly, off-shore engineering projects are expected to stand against forces driven by waves that might occur, e.g., once in ten thousand years. The assessment of design waves relies on statistical extrapolations that need to be fed with relia

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44

Pariseau, Justin andrew. "Sea of change : race, abolitionism, and reform in the New England whale fishery." W&M ScholarWorks, 2015. https://scholarworks.wm.edu/etd/1539624002.

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Bound together across lines of color and lass, Nantucket and New Bedford residents pursued the unique economic opportunities presented by whaling during the nineteenth century. Whaling was becoming a major industrial enterprise with few available options to fulfill the labor needs required for the whaling crews, ropewalks, blacksmith shops, and sail lofts that made it possible for Nantucket and New Bedford whaleships to transit the globe. Whaling thus generated the jobs that made it possible for free black communities to thrive. People of color consequently turned the need for labor to their a

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45

Kambhampati, Patanjali. "Adsorbate-substrate charge transfer excited states /." Digital version accessible at:, 1998. http://wwwlib.umi.com/cr/utexas/main.

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Brenner, Rolf Physics Faculty of Science UNSW. "Single-electron transistors for detection of charge motion in the solid state." Awarded by:University of New South Wales. School of Physics, 2004. http://handle.unsw.edu.au/1959.4/20533.

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This work investigates advanced single-electron transistor (SET) devices for detection of charge motion in solid-state systems. In particular, novel, nanoscale twin-SET and double-island SET (DISET) detectors are introduced as sensitive charge detectors. Some advantages over conventional SET detectors in terms of noise performance, sensitivity and versatility are pointed out. With the prospect of present, transistor-based microelectronics facing serious limitations due to quantum effects and heat dissipation, alternative computing paradigms ??? such as quantum computers, quantum-dot cellular a

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47

Fredlén, Alexander. "Electrochemical impedance spectroscopy on NMC811 at varying temperature and state of charge." Thesis, KTH, Tillämpad elektrokemi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299455.

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I detta arbete har elektrokemisk impedansspektroskopi använts för att producera reproducerbara impedansdata för katodmaterialet NMC811. Data som skulle kunna användas som basen för parametrisering och konstruktionen av en fysik-baserad modell. Dessutom har effekten av laddningstillstånd, temperatur, och historian av cellen på impedansen undersökts. Baserat på resultaten av preliminära test så har experiment konstruerats i vilka katodens impedans i en NMC811//Grafit cell har undersökts vid olika temperaturer och laddningstillstånd, både efter laddning och urladdning av cellen. Reproducerbara re

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Cheema, Umer Ali. "Design of a State of Charge (SOC) Estimation Block for a Battery Management System (BMS)." Thesis, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-30717.

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Battery Management System (BMS) is an essential part in battery powered applications where large battery packs are in use. BMS ensures protection, controlling, supervision and accurate state estimation of battery pack to provide efficient energy management. However the particular application determines the accuracy and requirements of BMS where it has to implement; in electric vehicles (EVs) accuracy cannot be compromised. The software part of BMS estimates the states of the battery pack and takes the best possible decision. In EVs one of the key tasks of BMS’s software part is to provide the

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Huang, Ke-Jun, and 黃科竣. "UKF-based Estimation of the Ultracapacitor State of Charge (SOC), Temperature and Remaining Useful Life (RUL)." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/67319243910310104701.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>104<br>Simultaneous estimation of the state of charge (SOC), temperature and remaining useful life (RUL) of ultracapacitors is achieved in this thesis by applying the unscented Kalman filter (UKF). In implementing the UKF, two sets of ultracapacitor model are used, including one with the voltage and temperature effects and the other with the aging effect. The proposed estimation strategy is validated via experiments in various thermal conditions, charge/discharge cycles and aging processes. The results indicate that the UKF is more effective than the extended Kalman

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Reddy, T. Mohan. "Capacity and Life Estimation of Flooded Lead Acid Batteries using Eddy Current Sensors." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/2971.

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Lead acid batteries are widely used in domestic, industrial and automotive applications. Even after lot of advancements in battery technologies, lead acid cells are still in use because of their high capacity and low cost. To use any battery effectively, first we should be able to identify the available capacity or State of Charge (SoC). There are many techniques available to measure SoC of a lead acid battery. One such unique method is to measure the capacity using eddy current sensors. This method is unique because it is non-obtrusive and online. Eddy current sensors (ECS) are wire wound ind

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