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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
121

Optical coherence tomography and microwave imaging diagnostic techniques for osteoporosis /

Rodriguez, Solimar Reyes. January 2008 (has links)
Thesis (M.S.)--Michigan State University. Electrical Engineering, 2008. / Title from PDF t.p. (viewed on July 27, 2009) Includes bibliographical references (p. 127-131). Also issued in print.
122

The characterization of retinal nerve fiber layer thickness in normal, high-tension and normal-tension glaucoma using optical coherence tomography

Mok, Kwok-hei. January 2005 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2005. / Title proper from title frame. Also available in printed format.
123

Polarimetric analysis of anisotropic tissue using polarization-sensitive optical coherence tomography (PS-OCT)

Park, Jesung. January 1900 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2006. / Vita. Includes bibliographical references.
124

Electronic Speckle Pattern Interferometry : instruments development, optimisation and applications

Albrecht, Daniel J. F. January 1998 (has links)
Optical interferometric techniques are being increasingly used in industry. These non contact techniques, using laser methods based on speckle interferometry, assure a greater accuracy in measuring displacements caused by deformations. One such technique, Electronic Speckle Pattern Interferometry (ESPI), has been used successfully, by analysis of the reaction of mechanical components to induced mechanical or thermal stress, for the measurements of in-situ, real time, full-field, in-plane and out-of-plane displacements and the detection of detachments, micro-cracks occurring as internal and external defects.
125

Correlations in resonance radiation

Warrington, D. M. January 1968 (has links)
No description available.
126

The entrepreneurial university and the entrepreneurial environment : organizational analysis and policy considerations

Al Harthy, Sharifa Hamood Mohamed January 2014 (has links)
This thesis presents a study of the ‘Entrepreneurial University’. It develops a framework for conceptualising the entrepreneurial university by interrogating literature and secondary sources. Regardless of the increasing body of literature on the entrepreneurial university concept, it is revealed to be under-theorized. This literature starting from Clark’s initiatives up until recent publications focus on case studies which are not analytically driven. This gap in the theory of the entrepreneurial university inspired the study aim, which is to develop an analytical framework that can be used as a tool to identify ‘The Entrepreneurial University’ from any other ‘classic university. The study argues that there are three main aspects affecting universities' transformation toward entrepreneurial organization. These are: organization, external environment, and the interaction between organization and external environment. The first aspect investigates the entrepreneurial organizational dimensions, with a comprehensive framework of five organizational dimensions namely managerial, funding resource, mission, external collaboration, and cultural dimension. This been developed as a ‘compass’ to characterize two ideal types of entrepreneurial university. The second and third aspects address the concepts of the entrepreneurial environment and the coherence between the entrepreneurial organization and the entrepreneurial environment where the university exists. The concept of National Education, Research and Innovation (ERI) Funding and Policy Spaces (NERI-FPS) (Nedeva et.al 2013) has been selected as the most appropriate framework for characterizing the entrepreneurial coherence, and analyzed for this purpose, where the variety of opportunities and flexible selection process are seen to be the key elements for the coherence between them. This adds a new development to the theory. Both the entrepreneurial framework and the NERI-FPS have been tested using four European case universities, from the Netherlands, Norway, Sweden, and the United Kingdom. The framework is applied to the universities and policy environment in Oman as an example of a developing country seeking to use entrepreneurship as a solution to socio-economic problems. Using qualitative analysis of documentation and detailed interviews, the framework is shown to reveal characteristics of the universities which can be used to develop policy actions. The results reveal that Omani universities are “classic” universities. However, to shift toward an entrepreneurial approach, five scenarios are suggested for Oman, and a pathway toward fully-fledged entrepreneurial universities is illustrated. First an online survey served as a pilot study, the results of which were then used to formulate the second stage which was semi- structured interviews with two Omani universities, and the third stage was in-depth interviews with Omani policy makers. This approach improves the internal validity of the research, and provides a rich picture of the universities and their environment. Finally, the study provides a framework which characterises entrepreneurial universities along a number of context-neutral dimensions which could take the research forward. The novelty of using case of Oman as an empirical study added new contribution into the field. In addition, this study contributes to a better understanding of policy actions with regard to entrepreneurial transformation.
127

Redukce speklí v obrazech z optické koherentní tomografie / Speckle noise reduction in images from optical coherence tomography

Sokol, Kamil January 2013 (has links)
The thesis deals with speckle suppression in images acquired by optical coherence tomograph. It is divided into four parts. The first part describes basic information about the medical imaging method. It also deals with principle of measurement. The second section discusses the formation of image speckle and selected methods to reduce them. Next part is practical and consists of data acquisition, determination of the evaluation methodology and the implementation of speckle reduction methods. The last part is focused on testing and reviews of algorithms and discussion about their results.
128

Asymptotic methods in design and characterization ofdiffractive axicons

Thaning, Anna January 2002 (has links)
This thesis addresses the subject of diffractive axicons inpartially coherent or oblique illumination. Design andcharacterization of the axicons are performed using asymptoticwave optics, employing the stationary-phase method to obtainapproximations of the diffraction integrals. A design method for axicons in partially coherentillumination is derived. The method can be applied to anyincident illumination on radially symmetric Schell-model form.It provides analytical solutions for some specific cases, butfor most incident intensity and coherence distributions it canbe solved numerically to yield the desired on-axis intensity.In addition, a method for estimating the width of the focalline is provided. For coherent light, the design method isidentical to the old one based on energy conservation in raybundles. Since the new method is derived entirely from waveoptics, it both clarifies the old method and extends it topartially coherent light. Oblique illumination of axicons, frequently encountered inapplications, causes degradation of the focal line. This changeis characterized, and from the asymptotic theory it is foundthat the focal line is described by an asteroid curve. Thewidth of the focal segment in oblique illumination isaccurately predicted, as confirmed by simulations andexperiments. It is also found that at a fixed angle, anelliptical axicon may be used to compensate for the adverseeffects of oblique illumination. Keywords:axicons, diffractive optics, coherence,asymptotic methods / NR 20140805
129

Koncepty "Sense of coherence" a "Sense of national coherence" jako prediktivní faktory duševního zdraví v období pandemie COVID-19 / The concepts of sense of coherence and sense of national coherence as predictive resources of mental health during the COVID-19 pandemic

Miková, Barbora January 2021 (has links)
Given the negative consequences the COVID-19 pandemic has brought to both the physical and mental health, there is a growing need to find the ways how to support and strengthen psychological resilience and mental health of the individuals in such an unprecedent situation. Consequently, this thesis explores the A. Antonovsky's salutogenetic model of health with a focus on the concepts of sense of coherence (SOC) and sense of national coherence (SONC) as potential predictors of mental health during COVID-19 pandemic. In the theoretical part, the topic of mental health, it's coneptualisation and predictors are presented, with an emphasis on the concepts of SOC and SONC. Additionally, the review of present research on mental health during COVID-19 pandemic is included. The research project analyses the data obtained through an online survey as a part of an international research study investigating the predictive factors of mental health during COVID-19 pandemic. Data collection in Czech sample was conducted in December 2020 and January 2021, using the Mental Health Continuum, SOC-13 and SONC scales. The sample included 476 participants. Multiple regression analysis confirmed the SOC as a significant predictor of mental health during COVID-19 pandemic among Czech sample. However, the predictive value...
130

Macular Imaging in Highly Myopic Eyes With and Without Glaucoma / 強度近視眼における緑内障の黄斑イメージング

Nakano, Noriko 23 July 2014 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(医学) / 甲第18499号 / 医博第3919号 / 新制||医||1005(附属図書館) / 31385 / 京都大学大学院医学研究科医学専攻 / (主査)教授 伊藤 壽一, 教授 河野 憲二, 教授 富樫 かおり / 学位規則第4条第1項該当 / Doctor of Medical Science / Kyoto University / DFAM

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