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Relevant bibliographies by topics / Radial defects / Dissertations / Theses

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Dissertations / Theses on the topic 'Radial defects'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Lewis, Alexander. "Defects in liquid crystals : mathematical and experimental studies." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:56930aaf-43a5-46bb-9987-109b22950a97.

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Nematic liquid crystals are mesogenic materials that are popular working materials for optical displays. There has been an increased interest in bistable liquid crystal devices which support two optically distinct stable equilibria. These devices typically exploit a complex geometry or anchoring conditions, which often induces defects in the equilibria. There remains a great deal to be understood about the structure of the defects and how they stabilize multiple equilibria in modern devices. This thesis focuses on four problems: the first three explore the effect of confinement and defects on

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2

Vendramini, Siulan. "Avaliação genética-clínica e audiológica de indivíduos com anomalias de 1º e 2º arcos branquiais associadas à anomalia radial." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/61/61131/tde-02102006-154900/.

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Objetivo: Avaliar, sob o ponto de vista genético-clínico e audiológico, uma amostra de indivíduos com EOAV associado à anomalia radial. Local: Serviço de Genética Clínica, Setor de Fonoaudiologia, Ambulatório de Saúde Pública e Centro de Pesquisas Audiológicas HRAC USP. Participantes: 14 indivíduos com EOAV associado à anomalia radial: 8 do sexo masculino e 6 do sexo feminino. Intervenções: Avaliação genética-clínica, avaliação radiológica, avaliação otorrinolaringológica e avaliação audiológica. Resultados: Os principais achados clínicos do EOAV com anomalia radial são malformações de ore

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3

Canevari, Giacomo. "Singularités dans le modèle de Landau-de Gennes pour les cristaux liquides." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066203/document.

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Nous nous intéressons aux cristaux liquides nématiques, qui sont une phase de la matière intermédiaire entre les liquides et les solides cristallins. Ces états sont caractérisés par la présence de défauts ponctuels ou de ligne. Le but de cette thèse est d'apporter une contribution à l'étude mathématique des défauts, dans le cadre de la théorie variationnelle de Landau-de Gennes. Dans le premier chapitre, nous étudions les minimiseurs de l'énergie dans des domaines bornés de dimension deux. Lorsque la constante élastique tend vers zéro, les minimiseurs convergent vers une application localement

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4

Rowland, Ian J. "Halogen 6* radicals : an ESR study." Thesis, University of Leicester, 1988. http://hdl.handle.net/2381/33878.

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The main objective of the study was to characterise, by electron spin resonance (ESR) spectroscopy, novel halogen containing a* radicals. These species are formed by ?-irradiation in a variety of halogen containing systems at liquid nitrogen temperatures. In Chapter One, a brief description of the first halogen a* radical to be identified, the Vx centre in potassium chloride (C12.-), is given in order to illustrate the general magnetic properties of the species. The dependence of these properties on the host matrix is also described. Accepted radiation damage mechanisms are presented with part

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5

Farley, Simon John. "The characterisation of multiple defects in components using artificial neural networks." Thesis, Oxford Brookes University, 2011. http://radar.brookes.ac.uk/radar/items/004460cf-8d08-bec5-6583-ddb6b81f3db9/1.

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This thesis investigates the use of artificial neural networks (ANNs) as a means of processing signals from non-destructive tests, to characterise defects and provide more information regarding the condition of the component than would otherwise be possible for an operator to obtain from the test data. ANNs are used both as pattern classifiers and as function approximators. In the first part of the thesis, finite element analysis was carried out on a simple component containing a single defect modelled as a void, simulating three kinds of non-destructive test: an impact method that sent a stre

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6

Attwood, Anna Lisa. "Characterisation and reactivity of thermal and photo-generated surface defects and radical centres over TiO2 : an EPR investigation." Thesis, Cardiff University, 2004. http://orca.cf.ac.uk/55957/.

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Electron Paramagnetic Resonance Spectroscopy (EPR) has been used to thoroughly characterise the nature of trapped charge carrier pairs (i.e., holes and electrons) generated in different TiC>2 polycrystalline powders (P25 Anatase and two different Rutile materials). The paramagnetic centres were formed by vacuum reduction and UV irradiation of the TiC>2 samples, allowing a comparison of the two methods to be made. The reactivity of these trapped charge carrier pairs have been examined following the formation of oxygen centred radicals via oxygen addition. These generated species can change depe

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7

Talgatti, Otaviano Luis. "Instabilidade radial em dutos flexíveis com defeitos na bandagem de alta resistência sujeitos a cargas axiais compressivas." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/87356.

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O riser flexível é composto por várias camadas com funções estruturais específicas. Quanto à resistência mecânica, sua estrutura deve suportar os mais variados tipos de solicitações atuantes de forma combinada ou isolada. Uma das formas isoladas de solicitação é a compressão axial, responsável pela instabilidade radial (gaiola de passarinho) do duto flexível. A instabilidade radial ocorre principalmente quando o duto flexível apresenta danos na bandagem de alta resistência que juntamente com a carga axial compressiva pode levar o riser a falhas catastróficas. Esse dano na bandagem é gerado dev

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8

Rust, Stephanus Marthinus. "Classification of timber from Pinus radiata trees exposed to forest fires." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/98097.

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Thesis (MSc)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: This study aimed to classify wood from trees that were exposed to forest fires with regards to their end use. Exposure to high temperatures over time is known to degrade wood in various ways. This degradation could limit the end use by altering mechanical, chemical and physical properties, leading to difficulty in processing or failing to meet required specifications for various grades. In this study wood from Pinus radiata trees that were exposed to forest fires of different levels of heat intensity was analysed with regards t

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9

Purmová, Jindra. "Effect of the modification of the polymer-rich phase composition on the formation of structural defects in radical suspension PVC." [S.l. : [Groningen : s.n.] ; University Library Groningen] [Host], 2007. http://irs.ub.rug.nl/ppn/.

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10

Barrios, Rodríguez Andrés. "Determinación del diámetro del cilindro defectuoso en trozas podadasde pino radiata (Pinus radiata D.Don), mediante atenuación de radiación gamma." Tesis, Universidad de Chile, 2004. http://www.repositorio.uchile.cl/handle/2250/105025.

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11

Shtogun, Yaroslav. "Properties of Carbon Nanotubes Under External Factors: Adsorption, Mechanical Deformations, Defects, and External Electric Fields." Scholar Commons, 2010. https://scholarcommons.usf.edu/etd/1771.

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Carbon nanotubes have unique electronic, optical, mechanical, and transport properties which make them an important element of nanoscience and nanotechnology. However, successful application and integration of carbon nanotubes into new nanodevices requires fundamental understanding of their property changes under the influence of many external factors. This dissertation presents qualitative and quantitative theoretical understanding of property changes, while carbon nanotubes are exposed to the deformations, defects, external electric fields, and adsorption. Adsorption mechanisms due to Van de

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12

León, Acuña José Antonio. "Características clínicas, reconstructivas y funcionales de la cobertura de defectos linguales post hemiglosectomia con colgajo radial libre en el Instituto Nacional de Enfermedades Neoplásicas (INEN)." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2012. https://hdl.handle.net/20.500.12672/12558.

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El documento digital no refiere asesor<br>Determina las características clínicas, características del tratamiento oncológico – reconstructivo y el grado de recuperación de las funciones de la lengua en la cobertura inmediata con colgajo radial libre para defectos linguales post hemiglosectomia en el INEN. El estudio es de tipo observacional retrospectivo descriptivo, realizado en el Servicio de Cirugía Plástica del Instituto Nacional de Enfermedades Neoplásicas (INEN) en 45 paciente post hemiglosectomia por cáncer de lengua, a quienes se les realizó la cirugía de cobertura inmediata con colgaj

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13

Hirst, Suzanne Marie. "Anti-inflammatory Effects and Biodistribution of Cerium Oxide Nanoparticles." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/76806.

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Cerium oxide nanoparticles have the unique ability to accept and donate electrons, making them powerful antioxidants. Their redox nature is due to oxygen defects in the lattice structure, which are more abundant at the nanoscale. Reactive oxygen species (ROS) are pro-oxidants whose presence is increased during periods of inflammation in the body. ROS damage tissues and cellular function by stripping electrons from proteins, lipids, and DNA. We investigated the ability of nanoceria to quench ROS in vitro and in vivo, and examined the biodistribution and biocompatibility of nanoceria in murine m

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14

Silva, João Gabriel Missia da. "Qualidade da madeira serrada e demarcação do lenho juvenil e adulto do mogno africano." Mestrado em Ciências Florestais, 2014. http://repositorio.ufes.br/handle/10/2017.

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Submitted by Priscila Oliveira (priscila.b.oliveira@ufes.br) on 2016-07-12T14:57:59Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissert João Gabriel M Silva (versao final).pdf: 2801701 bytes, checksum: 21e33695f6b8ed99e66a7beaa76c8188 (MD5)<br>Approved for entry into archive by Patricia Barros (patricia.barros@ufes.br) on 2016-07-18T12:31:54Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissert João Gabriel M Silva (versao final).pdf: 2801701 bytes, checksum: 21e33695f6b8ed99e66a7beaa76c8

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15

Si, Kun. "Kinetics and Mechanism of Vinyl Chloride Polymerization: Effects of Additives on Polymerization Rate, Molecular Weight and Defect Concentration in the Polymer." online version, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=case1168382967.

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16

Williamson, Kenneth B. "Contemporary dilemmas and radical defences, models of the church in the theologies of Paul Tillich (1886-1965) and Juan Luis Segundo (1925-1998)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ58299.pdf.

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17

Williamson, Kenneth B. "Contemporary dilemnas and radical defences : models of the church in the theologies of Paul Tillich (1886-1965) and Juan Luis Segundo (1925-1998)." Thesis, University of Ottawa (Canada), 2000. http://hdl.handle.net/10393/9141.

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Paul Tillich and Juan Luis Segundo have separately advocated changes in Christian thinking which, if accepted, would gradually develop new models of the Church, both in the perception of its members and of society generally. At the level of theological revision of belief the proposals vary considerably. Tillich elaborated a systematic and philosophical theology containing a synthesis of elements both of contemporary and of traditional Christian thought. His theology presented a radical challenge to traditional theism. His concept of the Church, however, as the institutional and cultural manife

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18

Asch, Karen Helene. "Revisão sistemática da literatura sobre quantificação de subclasses de IgG em crianças para detecção de imunodeficiências primárias com defeito na produção de anticorpos." Instituto Fernandes Figueira, 2011. https://www.arca.fiocruz.br/handle/icict/6477.

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Submitted by Luis Guilherme Macena (guilhermelg2004@gmail.com) on 2013-05-07T13:58:14Z No. of bitstreams: 1 DISSERTAÇÃO - Karen Helene Asch.pdf: 1993056 bytes, checksum: 37006a8cb3f8fe11cf9d8147b382b8f8 (MD5)<br>Made available in DSpace on 2013-05-07T13:58:14Z (GMT). No. of bitstreams: 1 DISSERTAÇÃO - Karen Helene Asch.pdf: 1993056 bytes, checksum: 37006a8cb3f8fe11cf9d8147b382b8f8 (MD5) Previous issue date: 2011<br>Fundação Oswaldo Cruz. Instituto Fernandes Figueira. Departamento de Ensino. Programa de Pós-Graduação em Saúde da Criança e da Mulher. Rio de Janeiro, RJ, Brasil

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19

Fighera, Michele Rechia. "Efeito do monossialogangliosídeo gm1 sobre as alterações comportamentais, euroquímicas e eletrográficas induzidas pelo ácido glutárico e nas defesas antioxidantes no SNC de ratos." Universidade Federal de Santa Maria, 2006. http://repositorio.ufsm.br/handle/1/4442.

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Monosialoganglioside (GM1) is a component of most cell membranes and is thought to play a role in development, recognition and cellular differentiation. Furthermore, GM1 is a neuroprotective agent that has been reported to scavenge free radicals generated during reperfusion and to protect receptors and enzymes from oxidative damage. In the present study we investigate the effect of GM1 on the catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities, on the spontaneous chemiluminescence and total radical-trapping potential (TRAP) in cortex of rats ex vivo and in

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20

Goutaland, François. "Processus multiphotoniques, défauts ponctuels et mécanismes de leur formation dans les fibres optiques : étude par spectroscopie laser." Saint-Etienne, 1998. http://www.theses.fr/1998STET4021.

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Ce mémoire se compose de deux parties, la première consacrée à l'étude des processus multiphotoniques se produisant dans des fibres optiques fortement dopées avec des ions er3+ et yb3+, et la seconde à l'étude des défauts induits par différents traitements dans des fibres germanosilicates. En étudiant la spectroscopie d'émission des fibres fortement dopées, sous excitations visibles (488 nm) et infrarouge (790 - 880 nm), nous mettons en évidence les différents mécanismes aux émissions bleues, vertes et rouge observées. Deux principaux types de processus d'up - conversion peuvent alors être dis

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21

Huang, Yaw Huei, and 黃耀輝. "The Effect of Wet Oxidation on the Micro-defects and their Radial Distribution in Cz Silicon Wafer." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/45743443304862162223.

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22

Kallel, Houssem. "Effets de la concentration des défauts sur la surface d'énergie potentielle du silicium amorphe." Thèse, 2008. http://hdl.handle.net/1866/8027.

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23

Lessing, Janine, and W. Bray. "Radical environmentalism : tactics, legal liability and defences." 1997. http://hdl.handle.net/10500/17204.

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24

Tzeng, Ruei-Fu, and 曾瑞賦. "Defect Inspection of Optical Masks by Using Radial Basis Function Neural Network with Image Operations." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/79643115123756708477.

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碩士<br>明新科技大學<br>精密機電工程研究所<br>102<br>This research proposes self-learning methods to inspect defects of optical masks by using the radial basis function neural network with image operations. The research includes the automatic optical mask image alignment, neural network inspection methods, image processing, and system program development. In the automatic optical mask image alignment, the use high precision image measurement system (Nikon VMR-3020), and using centroid counterpoint to the four corners of the intersecting point of the optical mask image on the centroid, forming a central positio

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25

CHANG, YEN-WEI, and 張彥崴. "Truly Radial N-Way Wilkinson Power Divider with Defected Ground Structure Transmission Line." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/7c46y6.

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碩士<br>國立臺北大學<br>通訊工程研究所<br>105<br>In this paper, we study the development of Radial 8-way Wilkinson Power Divider and (1: 4 Modified Wilkinson Power Divider). It is mainly designed at 1 GHz. The main function of this 1: N Wilkinson power divider is used to add or distribute a high number of receivers or transmitters in the radio frequency band. Therefore, the RF power dividers occupies a very important circuit block in a large-scale multi-input multi-output system. And this paper presents a radial 1: 4 and 1: 8 Wilkinson power divider compared to the traditional Wilkinson power divider, in add

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26

Lee, Crystal J. J. "Molecular Mechanisms and Determinants of Species Sensitivity in Thalidomide Teratogenesis." Thesis, 2012. http://hdl.handle.net/1807/36210.

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The expanding therapeutic use of thalidomide (TD) remains limited by its species-specific teratogenicity in humans and rabbits, but not rodents. The R and S isomers of TD may be selectively responsible for its respective therapeutic and teratogenic effects, but rapid in vivo racemization makes this impossible to confirm. Fluorothalidomide (FTD), a fluorinated TD analogue with stable, non-racemizing isomers, may serve as a model compound for determining stereoselective effects. In vivo, FTD was undetectable in plasma, suggesting rapid breakdown, as confirmed in vitro, where FTD hydrolyzed u

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