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Study of carrier injection for performance optimization of a reconfigurable waveguide digital optical switch on InGaAsP/InP /Ng, Sandy. January 1900 (has links)
Thesis (Ph.D.) - Carleton University, 2007. / Includes bibliographical references (p. 128-137). Also available in electronic format on the Internet.
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Complementary metal oxide semiconductor compatible silicon-on-insulator optical rib waveguides with local oxidation of silicon isolation /Rowe, Lynda, January 1900 (has links)
Thesis (M.App.Sc.) - Carleton University, 2007. / Includes bibliographical references (p. 82-92). Also available in electronic format on the Internet.
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Thermal stability of pre-annealed hydrogen-loaded fiber bragg gratings as a function of the fiber-phase mask distance /Xiong, Lingyun. January 1900 (has links)
Thesis (M.App.Sc.) - Carleton University, 2007. / Includes bibliographical references (p. 105-109). Also available in electronic format on the Internet.
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Design and analysis of high-Q amorphous microring resonator sensors for gaseous and biological species detection /Manoharan, Krishna. January 2009 (has links)
Thesis (M.S.)--Ohio University, March, 2009. / Title from PDF t.p. Includes bibliographical references.
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Advancing neutral atom quantum computing studies of one-dimensional and two-dimensional optical lattices on a chip /Christandl, Katharina, January 2005 (has links)
Thesis (Ph. D.)--Ohio State University, 2005. / Title from first page of PDF file. Document formatted into pages; contains xxiii, 261 p.; also includes graphics. Includes bibliographical references (p. 256-261). Available online via OhioLINK's ETD Center
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Integration of thin film GaAs MSM photodetector in fully embedded board-level optoelectronic interconnectsLin, Lei, Chen, Ray T. January 2004 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2004. / Supervisor: Ray T. Chen. Vita. Includes bibliographical references.
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Honor, not sainthood interpreting scandals and personal flaws in presidential homes, museums and libraries /Gray, Troy. Hafertepe, Kenneth, January 2009 (has links)
Thesis (M.A.)--Baylor University, 2009. / Includes bibliographical references (p. 108-117).
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Contribution à l'étude de l'effet de déplacement de champ dans les guides chargés par des lames semi-conductrices.Amalric, Jean-Louis, January 1900 (has links)
Th.--Électronique--Toulouse--I.N.P., 1978. N°: 36.
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Controle para protótipos registrados com laser de femtosegundosFiorin, Rodrigo 15 August 2013 (has links)
Um dos problemas da fabricação de protótipos de dispositivos fotônicos esta no controle dos vários parâmetros de construção. A utilização do laser de femtosegundo para a fabricação de dispositivos óticos esta cada vez mais comum devido as suas qualidades e propriedades. Com a utilizaçãao das instruções de programação e do laser de femtosegundo foi possível a alteração do índice de refração dos substratos de sodocálcico e de sílica fundida, tornando viável o guiamento em estruturas planas. Com estas estruturas de guiamento devidamente produzidas e caracterizadas, permitiu construir um acoplador direcional, mostrando a possibilidade de controle para fabricação de diversos dispositivos. / One of the problems of manufacturing prototypes of photonic devices that control the various parameters of construction. The utilization of the femtosecond laser for the fabrication of optical devices is increasingly common due to their qualities and properties. With the utilization of the instructions for programming and femtosecond laser was possible alteration of the index of refraction of the substrates of soda-lime and fused silica, making viable guiding in planar structures. With these guiding structures properly produced and characterized, it was possible to build a directional coupler, showing the possibility of control for the manufacture of various devices.
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Análise de três formulações de biocimentos aplicados através de guias de crescimento na calvária de coelhos / Analysis of three biociments formulations applied by growth guides in the calvaria of rabbitsColombo, Bruna Bristot 06 July 2016 (has links)
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Previous issue date: 2016-07-06 / PROMOP / CAPES / This study aimed to analyze and compare different combinations of biocements in relation to osteoinductive and osseocondutive potential, applied by growth guides in rabbit calvaria. We used 14 New Zealand male rabbits, with 6 months of age and average weight of 3.28 ± 0.44 kg, proved healthy through physical examination and hematologic analysis. After performing anesthesia, the animals underwent periosteal bone exposure of the calvaria and each rabbit were attached four cylindrical polyamide guides with stainless steel bolt. Of these guides, three were filled with materials in the form of biocement consisting of: hydroxyapatite 100% (HA 100%), Hydroxyapatite 95% plus Alumina 5% (HA95% + Al5%) and Hydroxyapatite 99% plus Mg 1% (HA99% + Mg1%) and one with autologous blood clot (control). The animals were randomly assigned into two groups: M60 (n = 07) and M90 (n = 07) who were euthanized at 60 and 90 days postoperativelyand the calvaria was removed and wrapped in formaldehyde for 15 days. After, the calvaria was sectioned in four squares, each containing the biomaterial or control and is maintained in buffered formaldehyde for 15 days for histological evaluations and scanning electron microscopy (SEM). Analyzing the images and histological micrographs obtained with the SEM the control samples showed no significant bone growth. The biocements formed by HA100% and HA99% + Mg1% proved promising, leading to an important exoskeletal bone growth (osteoinduction), since the base and the apex of the samples (osseoconduction) and
showed no rejection indicated by small amount of fibrous tissue and inflammatory cells. Samples containing HA99% + Mg1% provided greater bone growth at an early stage as compared those containing HA100%. Samples composed of hydroxyapatite 95% + Alumina 5% did not obtain satisfactory results, leading to tiny bone formation and showing signs of rejection. Based on these, the biociment composed of HA100% and the composite formed by HA99% and Mg1% are promising and likely to be used as bone neocresciment promoters / O presente estudo objetivou analisar e comparar diferentes combinações de biocimentos em relação ao seu potencial osseoindutivo e osseocondutivo, quando plicados através de guias de crescimento na calvária de coelhos. Foram utilizados 14 coelhos da raça Nova Zelândia, machos, com 6 meses de idade e peso médio de 3,28 ± 0,44 kg, comprovadamente hígidos através de exame físico e análise hematológica. Após realização de anestesia e em adequado plano cirúrgico, os animais foram submetidos à exposição óssea periosteal da região da calvária, onde, em cada coelho, foram fixados com parafuso de aço inoxidável, quatro guias cilíndricas de poliamida. Destas guias, três foram preenchidas com materiais na forma de biocimento, compostos por: Hidroxiapatita a 100% (HA 100%), Hidroxiapatita 95% + Alumina 5% (HA95% + Al5%) e Hidroxiapatita 99% + Magnésio 1% (HA99% + Mg1%) e uma com coágulo sanguíneo autólogo (controle). Os animais foram distribuídos aleatoriamente em dois grupos: M60 (n=07) e M90 (n=07), que foram eutanasiados com 60 e 90 dias de pós-operatório, respectivamente, sendo a calvária removida e acondicionada em formaldeído por 15 dias. Após, a calvária foi seccionada na forma de quatro quadrados, cada qual contendo o biomaterial ou o controle, sendo mantidos em formaldeído tamponado por mais 15 dias e então encaminhados para avaliações histológicas e para a realização de microscopia eletrônica por varredura (MEV). Analisando as imagens histológicas e as micrografias obtidas com a MEV, observou-se que as amostras controle não apresentaram crescimento ósseo
expressivo. Os biocimentos formados por HA100% e HA99% + Mg1% se mostraram bastante promissores, levando a um importante crescimento ósseo exoesqueletal (osseoindução), desde a base quanto ao ápice das amostras (osseocondução) e apresentaram ausência de rejeição, indicada pela pequena quantidade de tecido fibroso e células inflamatórias. As amostras contendo HA99% + Mg1% proporcionaram maior crescimento ósseo em uma fase inicial quanto comparada as que continham HA100%. As amostras compostas por hidroxiapatita 95% + Alumina 5% não obtiveram resultados satisfatórios, levando à ínfima neoformação óssea e apresentando sinais de rejeição. Frente ao exposto, o biocimento composto por HA 100% e o compósito formado por HA99% e Mg1% são promissores e passíveis de serem utilizados como promotores de neocrescimento ósseo
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