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Dissertations / Theses on the topic 'DMRC'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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1

Vootukuru, Abhishek. "DMARC: A FRAMEWORK FOR THE INTEGRATION OF DMAIC AND DMADV." Master's thesis, University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2913.

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The Lean Six Sigma methodology is being applied extensively to tackle many quality related issues in many processes of today s industries. Various companies have benefited greatly from the adoption of Six Sigma and Lean engineering concepts since their introduction, and continue to do so. The DMAIC method that is traditionally adopted in the implementation of the Lean Six Sigma methodology has proven to yield cost saving results in most cases. Yet, industries have found that just improvement of existent process and products to reduce defects, does not quench the customer s growing thirst for
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2

Franca, Aline Aguiar da. "Controle preditivo DMC." reponame:Repositório Institucional da UFSC, 2012. http://repositorio.ufsc.br/xmlui/handle/123456789/100763.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia de Automação e Sistemas, Florianópolis, 2012.<br>Made available in DSpace on 2013-06-25T22:24:10Z (GMT). No. of bitstreams: 1 315035.pdf: 3222498 bytes, checksum: 637341fc78e12adbdefa9c4b49a5c6d4 (MD5)<br>Este trabalho tem por objetivo apresentar um estudo relacionado ao controlador preditivo DMC (Dynamic Matrix Control) em suas formas linear e não-linear. O DMC é um controlador preditivo baseado em modelo (MPC - Model Predictive Control) que emprega os elementos da resp
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3

Cunha, Caio Dorneles. "Controlador em modo dual adaptativo robusto - DMARC." Universidade Federal do Rio Grande do Norte, 2008. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15122.

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Made available in DSpace on 2014-12-17T14:54:50Z (GMT). No. of bitstreams: 1 CaioDC.pdf: 2782026 bytes, checksum: ffc0e89b5e796daecc6152d3075b6918 (MD5) Previous issue date: 2008-01-24<br>The so-called Dual Mode Adaptive Robust Control (DMARC) is proposed. The DMARC is a control strategy which interpolates the Model Reference Adaptive Control (MRAC) and the Variable Structure Model Reference Adaptive Control (VS-MRAC). The main idea is to incorporate the transient performance advantages of the VS-MRAC controller with the smoothness control signal in steady-state of the MRAC controller. Two b
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4

Dong, Yan. "Performance and Oscillation Behavior of PBI-Phosphoric Acid based Higher-Temperature Vapor Feed Direct Methanol Fuel Cells." Digital WPI, 2015. https://digitalcommons.wpi.edu/etd-theses/505.

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Operation of a Direct Methanol Fuel Cell (DMFC) at high temperature with vapor feed can avoid many of the issues of conventional low temperatures DMFC, such as crossover, low efficiency and high catalyst loading. Here we investigate the behavior of a PBI-phosphoric acid membrane based DMFC. This project has two goals. The first goal is to investigate the effect of temperature and methanol concentration on the performance of Direct Methanol Fuel Cell (DMFC). The second goal is to investigate the effect of temperature and methanol on its oscillatory behavior under constant current or constant vo
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5

Suarez, Matthew. "The Effect of Membrane Thickness on the Performance of PBI-Based High-Temperature Direct Methanol Fuel Cells." Digital WPI, 2013. https://digitalcommons.wpi.edu/etd-theses/1131.

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"This project investigates the effect of membrane thickness on the performance and durability of a Direct Methanol Fuel Cell (DMFC) using a commercially available Celtec®P-1000 PBI-based membrane electrode assembly (MEA). The PBI-based membranes tested were the 100µm, the standard thickness, 200µm and 250µm thick. With various methanol feed concentrations and cathode feeds, oxygen and air, the PBI-based MEAs were operated between 160 and 180°C with vaporized methanol feed. Results showed that the DMFC performance increased with temperature and with PBI membrane thickness. The optimal concent
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6

Knox, Daniel. "Performance Characteristics of PBI-based High Temperature Direct Methanol Fuel Cells." Digital WPI, 2012. https://digitalcommons.wpi.edu/etd-theses/956.

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"This thesis investigates the effect of temperature, methanol concentration, and oxidant type on the performance of a Direct Methanol Fuel Cell (DMFC) using two versions of a commercially available polybenzimidazole (PBI)-based membrane electrode assembly (MEA): the Celtec®-P 1000 MEA of original thickness and double thickness. The PBI-based MEA’s were tested under the vapor-phase methanol concentrations of 1M, 2M, 3M, 5M, 7.5M, and 10M, temperatures of 160-180°C, and oxidants of oxygen and air. It was found that performance increased with temperature and that oxygen outperformed air as me
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7

Zocca, Andrea. "An application of Trotter's algorithm to DMRG simulation." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13452/.

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La seguente tesi presenta l'implementazione in codice C++ di un algoritmo per l'evoluzione temporale del DMRG, basato sull'approssimazione di Trotter per primi vicini. Il corretto funzionamento del codice è stato controllato calcolando un ristema risolubile esattamente, la catena di fermioni liberi senza spin (con condizioni al contorno aperte); in seguito il nuovo algoritmo è stato comparato con l'evoluzione temporale del DMRG basata sul metodo di Runge-Kutta. L'analisi degli errori ha mostrato come, per brevi periodi di tempo, il metodo di Runge-Kutta sia il più adatto fra i due, mentre per
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8

Adler, Severino. "Hubbard to Falicov-Kimball-a DMFT[DMRG] study." Thesis, Uppsala universitet, Materialteori, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-315603.

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9

Grisot, Giorgia. "Validation of dMRI techniques for mapping brain pathways." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122194.

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This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Thesis: Ph. D., Harvard-MIT Program in Health Sciences and Technology, 2019<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 201-222).<br>Diffusion magnetic resonance imaging (dMRI) tractography is the only non-invasive tool for studying the connectional architecture of the brain in vivo. By measuring the diffusion of water molecules dMRI provides unique information about white matter pathway
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10

Thien, Bao Nguyen. "Machine Learning for Tract Segmentation in dMRI data." Doctoral thesis, Università degli studi di Trento, 2016. https://hdl.handle.net/11572/368335.

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Diffusion MRI (dMRI) data allows to reconstruct the 3D pathways of axons within the white matter of the brain as a set of streamlines, called tractography. A streamline is a vectorial representation of thousands of neuronal axons expressing structural connectivity. An important task is to group the same functional streamlines into one tract segmentation. This work is extremely helpful for neuro surgery or diagnosing brain disease. However, the segmentation process is difficult and time consuming due to the large number of streamlines (about 3 × 10 5 in a normal brain) and the variability of t
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Thien, Bao Nguyen. "Machine Learning for Tract Segmentation in dMRI data." Doctoral thesis, University of Trento, 2016. http://eprints-phd.biblio.unitn.it/1704/1/20163103_thesis_bao.pdf.

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Diffusion MRI (dMRI) data allows to reconstruct the 3D pathways of axons within the white matter of the brain as a set of streamlines, called tractography. A streamline is a vectorial representation of thousands of neuronal axons expressing structural connectivity. An important task is to group the same functional streamlines into one tract segmentation. This work is extremely helpful for neuro surgery or diagnosing brain disease. However, the segmentation process is difficult and time consuming due to the large number of streamlines (about 3 × 10 5 in a normal brain) and the variability of t
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12

Natal, Aline Martins Duboc. "Influência do pH na interação do Photofrin®, Photogem® e Photosan® com DMPC e lipoproteína de baixa densidade." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/75/75132/tde-27032008-110609/.

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O efeito do fotossensibilizador na estrutura biológica não é apenas influenciado por suas propriedades fotofísicas, mas também por sua interação específica com biosistemas.Além disso, a localização do fotossensibilizador no tecido tumoral é um importante fator que resulta em diferentes mecanismos de destruição do tumor. Muitos fotossensibilizadores, após administração sistêmica, se ligam às proteínas plasmáticas e com isso são distribuídos em diferentes sítios no organismo. Os fotossensibilizadores hidrofílicos são largamente transportados por albuminas e globilinas e se acumulam preferencialm
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13

Dias, Ricardo Rodrigues. "Preparação e caracterização de eletrocatalisadores PtRu, PtSn, PtRh, PtRuRh e PtSnRh para oxidação direta de álcoois em células a combustível tipo PEM utilizando a metodologia da redução por álcool." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-08092009-172849/.

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Os eletrocatalisadores PtRh/C, PtRu/C, PtSn/C, PtRuRh/C e PtSnRh/C (20% em massa de metais) foram preparados pelo método da redução por álcool usando H2PtCl6.6H2O (Aldrich), RhCl3.xH2O (Aldrich) e SnCl2.2H2O (Aldrich) como fonte de metais e o carbono Vulcan XC-72 como suporte. Os eletrocatalisadores foram caracterizados pelas técnicas de EDX, difração de raios X e voltametria cíclica. A eletro-oxidação do metanol e do etanol foram estudadas através das técnicas de voltametria cíclica, cronoamperometria e curvas de polarização obtidas em células a combustível unitárias alimentadas diretamente p
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14

Kretzmer, Helene. "Methods for DNA Methylation Sequencing Analysis and their Application on Cancer Data." Doctoral thesis, Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-203416.

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The fundamental subject of this thesis is the development of tools for the analysis of DNA methylation data as well as their application on bisulfite sequencing data comprising a large number of samples. DNA methylation is one of the major epigenetic modifications. It affects the cytosines of the DNA and is essential for the normal development of cells and tissues. Unusual alterations are associated with a variety of diseases and, specially, in cancergeneous tissues global changes in the DNA methylation level have been detected. To sequence DNA methylation on single nucleotide resolution, the
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15

Hacquard, Alexandre. "Improving and Understanding Direct Methanol Fuel Cell (DMFC) Performance." Link to electronic thesis, 2005. http://www.wpi.edu/Pubs/ETD/Available/etd-050505-151501/.

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16

Ponce, Mariela Leticia. "Organic-inorganic hybrid membranes with heteropolyacids for DMFC applications." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972809775.

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17

Pinto, Maíra Siqueira. "Study of human structural brain connectivity in healthy aging based on tracts." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/59/59135/tde-16042018-151221/.

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The human brain changes in a complex and heterogeneous way throughout life, the normal aging process is associated to significant alterations in the axonal connections. In this study, we evaluated the age-related changes in physical parameters associated with the brain white and gray matter integrity in healthy subjects, as well as the possible correlation between them in specific tracts. Structural images (1 mm isotropic) and diffusion weighted images (2 mm isotropic, b = 1000 s /mm2) of 158 healthy individuals aged between 18 and 83 years were retrospectively collected at the Clinics Hospita
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18

Kell, Henny. "Wechselwirkung des Lipoheptapeptides Surfactin mit Lipiddoppelschichten aus DMPC und DPPC." [S.l.] : [s.n.], 2006. http://opus.kobv.de/tuberlin/volltexte/2007/1463.

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19

Jackson, Christopher Leslie. "Performance and optimisation of the direct methanol fuel cell (DMFC)." Thesis, University of Newcastle Upon Tyne, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.432490.

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20

Argyropoulos, Panagiotis. "Performance and modelling of the direct methanol fuel cell (DMFC)." Thesis, University of Newcastle Upon Tyne, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.247913.

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21

Lucas, Daniela da Costa. "Influência da adição de dimetil dicarbonato (DMDC) em vinhos tintos." Master's thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/3098.

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Mestrado em Química Analítica e Controlo de Qualidade<br>A adição do conservante Dimetil Dicarbonato (DMDC) em vinho, foi permitida pela Comunidade Europeia desde 2006, com um limite máximo de 200 mg/L, atendendo às seguintes prescrições: a adição deve ser efectuada pouco antes do engarrafamento; o tratamento pode apenas ser aplicado a vinhos com teor de açúcares superior a 5g/L; o produto não deve ser detectável no vinho colocado no mercado. O DMDC permite a conservação do vinho durante longos períodos de tempo, eliminando vários tipos de microrganismos. Este trabalho teve como objectivo estu
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22

Albalwi, Hanan. "The synthesis and evaluation of novel core/shell nanoparticles catalysts." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/the-synthesis-and-evaluation-of-novel-coreshell-nanoparticles-catalysts(3770bb32-32ef-4ebd-b348-f002276edf36).html.

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This thesis focuses on core/shell nanoparticle catalysts including preparation, characterization and testing performance using direct methanol fuel cell. Core/shell were prepared using noble and non-noble metals. Also some core/ shell nanoparticles supported on silica and different types of carbon were prepared as well in this thesis. Non-noble core/shell nanoparticles including novel Co/Ni, SiO2/Ni using three types of silica and novel SiO2/CoFe were prepared by a new modified sol-gel method using hydrazine in alkali media as the reducing agent to reduce metal chloride through two steps proce
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23

Buchanan, Colin Richard. "Structural brain networks from diffusion MRI : methods and application." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/14183.

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Structural brain networks can be constructed at a macroscopic scale using diffusion magnetic resonance imaging (dMRI) and whole-brain tractography. Under this approach, grey matter regions, such as Brodmann areas, form the nodes of a network and tractography is used to construct a set of white matter fibre tracts which form the connections. Graph-theoretic measures may then be used to characterise patterns of connectivity. In this study, we measured the test-retest properties of such networks by varying several factors affecting network construction using ten healthy volunteers who underwent a
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24

Chailuecha, Chatkaew. "Methanol barrier layers : modified membrane electrode assemblies for the improvement of direct methanol fuel cell performance." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/methanol-barrier-layer(2c347cde-c81d-4024-90b0-a62e1bf94918).html.

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The direct methanol fuel cell (DMFC) performance has been improved via two approaches. The first approach reduces methanol crossover in the membrane electrode assemblies (MEAs) by incorporating a methanol barrier layer onto an anode electrode of the MEA. The second approach increases the triple phase boundaries via the modified morphology of catalyst layers in the MEA. Methanol barrier layers containing a composite layer of Nafion/mordenite (MOR), Nafion/zeolite Y (ZY), Nafion/montmorillonite (MMT) or Nafion/titanate (TN) were distributed onto the anode of an MEA. The performance of these MEAs
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25

Monasterios, Morales Daniel Santos. "Sintonia de controladores DMC utilizando algoritmos geneticos." [s.n.], 1995. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261671.

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Orientador: Wagner Caradori do Amaral<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica<br>Made available in DSpace on 2018-07-20T15:52:31Z (GMT). No. of bitstreams: 1 MonasteriosMorales_DanielSantos_M.pdf: 4241082 bytes, checksum: 16c66248b8dd4fd15ca26114a3092803 (MD5) Previous issue date: 1995<br>Resumo: Este trabalho descreve a aplicação de um algoritmo genético para a sintonia de controladores DMC (Dynamic Matrix Control). Sintonizar um controlador DMC consiste no ajuste de certos parâmetros (horizontes de previsão e controle, ponderações nas
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Dechechi, Eduardo Cesar. "Controle avançado preditivo adaptativo"DMC multivariavel adaptativo"." [s.n.], 1998. http://repositorio.unicamp.br/jspui/handle/REPOSIP/267233.

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Orientador: Rubens Maciel Filho<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-07-24T18:09:41Z (GMT). No. of bitstreams: 1 Dechechi_EduardoCesar_D.pdf: 5588560 bytes, checksum: d37cf69fc8b7e06405e627faf200985a (MD5) Previous issue date: 1998<br>Resumo: O assunto principal deste trabalho é o desenvolvimento e a aplicação da técnica de controle avançado preditivo DMC (Dynamic Matrix Control) desde o controlador monovariável, DMC-SISO, ao controlador multivariável DMC-MIMO, e também do controlador multivariável adapta
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27

Friedrich, Andreas. "Time-dependent properties of one-dimensional spin-systems a DMRG-study /." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=982172842.

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28

Holzner, Andreas Michael. "DMRG studies of Chebyshev-expanded spectral functions and quantum impurity models." Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-139333.

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29

Mokrani, Touhami. "The development of inorganic and organic/inorganic membranes for DMFC application." Thesis, University of the Western Cape, 2004. http://etd.uwc.ac.za/index.php?module=etd&amp.

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A fuel cell is an energy device that converts chemical energy to electrical energy. Low temperature fuel cells, namely the hydrogen fuel cell and the direct methanol fuel cell are preferred amongst other fuel cell types for stationary and vehicular applications, due to their small size and their low operating temperature. The direct methanol fuel cell has several advantages over the hydrogen fuel cell including ease of transport and storage since methanol is a liquid. Since methanol is used directly in the cell there is no need for a reforming process, which results in a less complicated syste
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Lewis, Annabelle Jane. "The control and function of DMRs in the Igf2-H19 locus." Thesis, University of Cambridge, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.619942.

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31

Özdinçer, Baki. "Novel support materials for direct methanol fuel cell catalysts." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/novel-support-materials-for-direct-methanol-fuel-cell-catalysts(f7dfe29a-a593-44a6-a9e3-e9e8f5b8b2a2).html.

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This thesis focuses on developing support materials for direct methanol fuel cell (DMFC) catalysts. The approach involves using graphene based materials including reduced graphene oxide (rGO), reduced graphene oxide-activated carbon (rGO-AC) hybrid and reduced graphene oxide-silicon carbide (rGO-SiC) hybrid as a support for Pt and Pt-Ru nanoparticles. Pt/rGO and Pt-Ru/rGO catalysts were synthesized by three chemical reduction methods: (1) modified polyol, (2) ethylene glycol (EG) reduction and (3) mixed reducing agents (EG + NaBH4) methods. The synthesized catalysts were characterized by physi
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Plummer, Cecilia N. "Measuring the Fluorescence of the Reaction between p-Dimethylaminocinnamaldehyde (DMAC) and Human DNA." Bowling Green State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1587649485222456.

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Moore, Ashley Dawn. "Synthesis and characterization of carbon catalyst substrates for fuel cell applications." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/synthesis-and-characterization-of-carbon-catalyst-substrates-for-fuel-cell-applications(33d2baee-2602-4b47-8fa6-514a9c8fc98e).html.

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The work in this thesis addresses the synthesis and characterization of porous carbon substrates, and their electrochemical and fuel cell evaluation. The approach involves using porous carbon materials of different pore characteristics as electrocatalyst materials for use as cathode catalyst substrates in direct methanol fuel cells (DMFC). In this work, a porous carbon, known as carbonaceous Celatom or C-Celatom, was prepared by template synthesis using a widely abundant, inexpensive macroporous silica structure diatomaceous earth (Celatom FW-80). Ordered mesoporous carbon CMK-3 was also produ
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D'Elia, Claudio. "A two-body study of dynamical expansion in the XXZ spin chain and equivalent interacting fermion models." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/7604/.

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Lo scopo di questa tesi è studiare l'espansione dinamica di due fermioni interagenti in una catena unidimensionale cercando di definire il ruolo degli stati legati durante l'evoluzione temporale del sistema. Lo studio di questo modello viene effettuato a livello analitico tramite la tecnica del Bethe ansatz, che ci fornisce autovalori ed autovettori dell'hamiltoniana, e se ne valutano le proprietà statiche. Particolare attenzione è stata dedicata alle caratteristiche dello spettro al variare dell'interazione tra le due particelle e alle caratteristiche degli autostati. Dalla risoluzione de
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Belaoucha, Brahim. "Utilisation de l’IRM de diffusion pour la reconstruction de réseaux d’activations cérébrales à partir de données MEG/EEG." Thesis, Université Côte d'Azur (ComUE), 2017. http://www.theses.fr/2017AZUR4027/document.

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Comprendre comment différentes régions du cerveau interagissent afin d’exécuter une tâche, est un défi très complexe. La magnéto- et l’électroencéphalographie (MEEG) sont deux techniques non-invasive d’imagerie fonctionnelle utilisées pour mesurer avec une bonne résolution temporelle l’activité cérébrale. Estimer cette activité à partir des mesures MEEG est un problème mal posé. Il est donc crucial de le régulariser pour obtenir une solution unique. Il a été montré que l’homogénéité structurelle des régions corticales reflète leur homogénéité fonctionnelle. Un des buts principaux de ce travail
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Handschuh, Stefan. "Numerical methods in Tensor Networks." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-159672.

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In many applications that deal with high dimensional data, it is important to not store the high dimensional object itself, but its representation in a data sparse way. This aims to reduce the storage and computational complexity. There is a general scheme for representing tensors with the help of sums of elementary tensors, where the summation structure is defined by a graph/network. This scheme allows to generalize commonly used approaches in representing a large amount of numerical data (that can be interpreted as a high dimensional object) using sums of elementary tensors. The classificat
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Genova-Koleva, Radostina Vasileva. "Electrocatalyst development for PEM water electrolysis and DMFC: towards the methanol economy." Doctoral thesis, Universitat de Barcelona, 2017. http://hdl.handle.net/10803/462861.

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In this thesis, the hydrogen obtained in a PEM water electrolizer (PEMWE) as a reactant to produce methanol when combined with the CO2 captured from the combustion of fossil fuels is proposed. Methanol is easy to manage as a fuel for DMFCs and this would help to recycle the CO2 responsible for the climate change. PEMWEs have several advantages in comparison with the alkaline electrolysis such as ecological cleanness, low power consumption, small mass, and high purity of the evolved gases. TiO2 nanoparticles and nanotubes as supports for electrocatalysts for hydrogen evolution reaction (HER) a
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Kemper, Andreas. "Transfermatrix-DMRG for dynamics of stochastic models and thermodynamics of fermionic models." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969450168.

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39

Silva, Rui Dias da. "DMRI, LEAS relacionado com o uso de LC hidrófilas, excesso de convergência." Master's thesis, Universidade da Beira Interior, 2013. http://hdl.handle.net/10400.6/1499.

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O presente relatório de actividade profissional consta da apresentação de 3 casos clínicos observados ao longo de 6 anos de prática clínica pessoal. Apresentam-se três temas representativos da área dos cuidados de visão, sendo eles um caso de possível patologia, outro de adaptação de lentes de contacto com patologia associada e por fim um caso de disfunção binocular não estrábica. No caso clínico de possível patologia apresenta-se uma possível degenerescência macular relacionada com a idade. A importância desta exposição prende-se com o facto da degenerescência macular relacionada com a
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Huang, Yu-wei, and 黃鈺偉. "Studies of the Performance Decay of a DMFC and the Development of a 16-cell DMFC Stack." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/75910553095491626201.

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碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>98<br>In this paper, a 16-cell direct methanol fuel cell (called DMFC) stack was developed to power or charge a mobile phone without any voltage transformer. The various types of the performance decay of DMFCs are studied before a 16-cell DMFC stack is made. The decays due to improper storage are found and avoided. The influences of the MEA treatments on the performance are also studied. Eventually, we try to find the best storage and treatment methods to keep stacks in a good condition all the way. In order to solve the problem of methanol crossover lead to the
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Yu, Shih-Peng, and 余士鵬. "Priority Assignment on the MPSoC with DMAC." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/x4qwqk.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>102<br>In current multi-core systems, an application is executed in several cores and requires peripheral devices. A system bus arbiter and a direct access memory controller are used for communication management. Because of the precedence constraint between functions and the communication contention between cores, how to find a proper priority assignment for cores and devices becomes challenging. In this work, we propose two priority assignment strategies for fixed-priority and dynamic priority arbiters, respectively. A partition algorithm and a schedulability test are
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Chu, Po-Chun, and 邱柏淳. "Effect of Flow Channel on DMFC Performance." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/32267477471047265249.

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碩士<br>淡江大學<br>航空太空工程學系碩士班<br>99<br>The main purpose of this thesis is to investigate the different flow channel design effects on direct methanol fuel cell (DMFC) performance. Three serpentine type flow channels and two parallel type flow channels are fabricated and discussed. The three serpentine flow channels include the general serpentine type, the unilateral crooked serpentine type and the double-lateral crooked serpentine type. The two parallel flow channels include the general parallel type and the double-lateral crooked parallel type. Experimental investigations into the DMFC polari
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43

Song, Zheng-xun, and 宋政勳. "The research of DMFC gas diffusion layer." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/48903359746141528600.

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碩士<br>國立中央大學<br>能源工程研究所<br>96<br>The purpose of this study is to investigate the effects of microporous layer (MPL) and gas diffusion layer (GDL) on the performance of direct methanol fuel cell (DMFC). Both carbon cloth and carbon paper are used as the GDL. The scrapping method is used to prepare the MPL. The MPL is made hydrophobic using PTFE and hydrophilic using Nafion. The effects of hydrophobic and hydrophilic treatment on cell performance are studied. Unlike in proton exchange membrane fuel cells, the GDL and MPL in DMFCs need to provide the function of carbon dioxide removal as well as
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Hsu, Pai-Ho, and 徐百禾. "Optimum Design and Stability of DMFC Stack." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/29578592707085748158.

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碩士<br>元智大學<br>機械工程學系<br>94<br>There are many parameters influence the DMFC, according to the operating conditions such as cell temperature, concentration and species of the fuel, reactant flow rate, stress, and the metal materials of the bipolar ; actually some factors like electrolyte, thickness of membrane, catalyst ingredient, channel type, diffusion layer. In this research we will discuss MEA and carbon clothes in the cell, also change operating conditions then test the stability, and analyze the effect to the performance about different methanol solution and gas fluid rate, dynamic measur
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Chen, Chin-Hong, and 陳金宏. "DMVC: A Framework for Distributed Collaborative Software." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/64520121437307334699.

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碩士<br>國立交通大學<br>資訊工程研究所<br>81<br>This thesis presents an approach to the design of object- oriented collaborative software by extending MVC framework to a distributed framework DMVC. In order to provide a better extension to distributed systems, three things need be done: a survey of application domains, a study of internal structure of Model-View-Controller, and an analysis for the suitability of extensions from MVC. Based on these analyses, there are in general three DMVC architectures fo
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Lai, Zong-qun, and 賴宗群. "Studies of Stable and Reusable DMFC Stacks." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/32567277953269549233.

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碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>103<br>A portable direct methanol fuel cell for stable operation and long-haul upkeep is developed. Further practical applications to electronic devices are expected. In the past, the cells batteries are to be removed after use. The MEA will be placed and kept in deionized water to prevent the methanol from crossing over to cathode, leading to the catalyst poisoning. This method is not suitable for future commercial use. Through our experiment, with a layer of deionized water covered on the cathode, crossover to cathode is prohibited via aforementioned procedure
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Soares, Maria Adelaide de Azevedo Duarte. "Estudo retrospectivo de resultados funcionais na DMRI." Master's thesis, 2013. http://hdl.handle.net/1822/28074.

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Dissertação de mestrado em Optometria Avançada<br>Objetivo: Avaliar a função visual em pacientes com degenerescência macular da idade (DMI) na forma exsudativa, tratados com bevacizumab intravítreo, num período de seguimento de 12 meses após o diagnóstico da doença. Métodos: Estudo retrospetivo, em pacientes com DMI exsudativa seguidos na “Clínica Oftalmológica Ribeiro - Barraquer” entre 2009 e 2013. Foram incluídos 31 olhos de 30 pacientes, com neovascularização coroideia (NVC) secundária à DMI, que completaram, pelo menos, 12 meses de seguimento. Os pacientes foram tratados com injeções int
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Duarte, Rita dos Santos. "Degeneração macular relacionada com a idade (DMRI)." Master's thesis, 2010. http://hdl.handle.net/10400.6/2246.

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A realização deste trabalho surge como relatório final de estágio do 2º Ciclo de Optometria em Ciências da Visão da Universidade da Beira Interior. Estágio realizado nas Clínicas Leite, em Coimbra, com duração de 6 meses. Ao longo do estágio foram realizados três trabalhos teóricos sobre: Queratocone e Topografia Corneana; Córnea e Microscopia Especular e Tomografia de Coerência Óptica (OCT). Estes trabalhos auxiliaram na parte teórica. Na parte prática, foi possível acompanhar a realização de exames de diagnóstico complementar: Angiografia Fluoresceínica, Avaliação sensóriomotora, Biometria,
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Brandejs, Jan. "Optimalizované simulace kvantových systémů a metoda DMRG." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-351994.

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Title: Optimizing quantum simulations and the DMRG method Author: Jan Brandejs Department: Department of Chemical Physics and Optics Supervisor: doc. Dr. rer. nat. Jiří Pittner, DSc., J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Abstract: In this work, we explore the quantum information theoretical aspects of simulation of quantum systems on classical computers, in particular the many- electron strongly correlated wave functions. We describe a way how to reduce the amount of data required for storing the wavefunction by a lossy compression of quantum informatio
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Kang, Cheng-Yu, and 康成裕. "Fabrication and Analysis for Catalyst of DMFC." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/93814747713707036305.

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碩士<br>國立高雄應用科技大學<br>機械與精密工程研究所<br>97<br>The method of fabrication DMFC electrode media on this research is using different combined solvent PTFE and Nafion, one to three mass ratio and mixed with XC-72 produce carbon nano ink. Spray and clad cover the carbon cloth with 50 μm film thickness. Apply Magnetron Sputter deposition media clad on carbon cloth shell. We also proceed other progress: emersion period as a operation parameter clad different mass quantity (0.072 mg/cm2, 0.144 mg/cm2, 0.216mg/cm2) Pt media to a electric chemical analysis, we can find by increasing media mass content can't st
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