subject:(non contact testing )

1. Trifonov, Andrey. Contrôle non destructif par des méthodes d'acoustique non linéaire pour des applications aéronautiques : Nonlinear acoustic nondestructive testing for aeronautical applications.

Degree: Docteur es, Micro et nano technologies, acoustique et télécommunications, 2017, Ecole centrale de Lille

URL: http://www.theses.fr/2017ECLI0006

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Ce travail de thèse est une contribution au développement des méthodes d’acoustique non linéaire pour le contrôle non destructif et l’imagerie de défauts de type… (more)

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Ce travail de thèse est une contribution au développement des méthodes d’acoustique non linéaire pour le contrôle non destructif et l’imagerie de défauts de type contact dans les solides.Dans ce travail, des modifications sont proposées pour deux méthodes récentes de contrôle non destructif par acoustique non linéaire : l’interférométrie de coda couplée au retournement temporel, et l’imagerie non linéaire par ultrasons aériens. Le principal avantage de la première méthode est sa sensibilité extrême liée à l’accumulation des effets induits par des changements, même faibles, des propriétés de l’échantillon durant la formation de la coda. La deuxième méthode apporte une approche complémentaire en permettant de réaliser un contrôle sans contact. Les techniques développées ont été testées sur des échantillons présentant des défauts artificiels à des emplacements connus. Les performances de chacune des méthodes ont été étudiées.La deuxième partie de ce travail porte sur la description théorique des non-linéarités acoustiques de contact et leur utilisation pour le développement d’une boite à outils numériques permettant la simulation d’ondes acoustiques dans des structures complexes contenant des contacts internes. Un model physique décrivant le décalage tangentiel de deux corps en contact en présence de friction est proposé. Il aboutit à une solution analytique pour la relation présentant une hystérésis entre les déplacements de contact normal et tangentiel et les chargements. Ce modèle est utilisé comme condition aux frontières pour les surfaces de contact internes (défauts) dans un modèle de propagation d’ondes acoustiques utilisant un logiciel d’éléments finis commercial

This PhD thesis work contributes to the development of nonlinear elastic methods for non-destructive testing and imaging of contact-type defects in solids.In this work, two modifications of recent nonlinear nondestructive testing methods are suggested: the coda wave interferometry combined with the nonlinear time reversal principle and air-coupled nonlinear ultrasonic imaging. The principal advantage of former technique is in its extremely high sensitivity owing to the fact that weak changes in sample's parameters are accumulated and finally greatly amplified during the formation of the coda wave. The other technique has a complimentary strength and offers a possibility of a remote detection. The developed techniques are tested on samples with artificially fabricated defects at known locations. The performance of each method is accessed and the potential for obtaining robust nonlinear images is demonstrated.The second part of the work is concerned with a theoretical description of contact acoustical nonlinearity and its use for creating of a numerical toolbox capable of simulating wave propagation in complex structures containing internal contacts. A physical model describing the tangential shift of two contacting bodies in the presence of friction has been proposed. Its result is an analytical computer-assisted solution for hysteretic relationships…

Advisors/Committee Members: Bou Matar-Lacaze, Olivier (thesis director).

Subjects/Keywords: Acoustique non linéaire; Contrôle non destructif; Interférométrie de coda; Non-linéarités de contact; Simulation numérique; Friction; Nonlinear acoustics; Nondestructive testing; Coda Wave interferometry; Contact nonlinearities; Numerical simulation; Friction

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Trifonov, A. (2017). Contrôle non destructif par des méthodes d'acoustique non linéaire pour des applications aéronautiques : Nonlinear acoustic nondestructive testing for aeronautical applications. (Doctoral Dissertation). Ecole centrale de Lille. Retrieved from http://www.theses.fr/2017ECLI0006

Chicago Manual of Style (16^th Edition):

Trifonov, Andrey. “Contrôle non destructif par des méthodes d'acoustique non linéaire pour des applications aéronautiques : Nonlinear acoustic nondestructive testing for aeronautical applications.” 2017. Doctoral Dissertation, Ecole centrale de Lille. Accessed January 17, 2021. http://www.theses.fr/2017ECLI0006.

MLA Handbook (7^th Edition):

Trifonov, Andrey. “Contrôle non destructif par des méthodes d'acoustique non linéaire pour des applications aéronautiques : Nonlinear acoustic nondestructive testing for aeronautical applications.” 2017. Web. 17 Jan 2021.

Vancouver:

Trifonov A. Contrôle non destructif par des méthodes d'acoustique non linéaire pour des applications aéronautiques : Nonlinear acoustic nondestructive testing for aeronautical applications. [Internet] [Doctoral dissertation]. Ecole centrale de Lille; 2017. [cited 2021 Jan 17]. Available from: http://www.theses.fr/2017ECLI0006.

Council of Science Editors:

Trifonov A. Contrôle non destructif par des méthodes d'acoustique non linéaire pour des applications aéronautiques : Nonlinear acoustic nondestructive testing for aeronautical applications. [Doctoral Dissertation]. Ecole centrale de Lille; 2017. Available from: http://www.theses.fr/2017ECLI0006

2. Silva, Emerson Rodrigo da. Estudo das propriedades do biospeckle e suas aplicações.

Degree: Mestrado, Física, 2007, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-02102007-104941/ ;

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Esta dissertação é dedicada ao estudo de algumas das propriedades e aplicações do speckle dinâmico no monitoramento de atividade em tecidos biológicos. As estatísticas espaço-temporais… (more)

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Esta dissertação é dedicada ao estudo de algumas das propriedades e aplicações do speckle dinâmico no monitoramento de atividade em tecidos biológicos. As estatísticas espaço-temporais de primeira e segunda ordem são discutidas em vias gerais. As principais técnicas para obtenção de dados a partir do granulado óptico são apresentadas, com especial destaque para a função de autocorrelação, as matrizes de co-ocorrência, o método de Fujii e a Análise de Contraste do Laser Speckle (LASCA). Uma nova metodologia de análise, baseada no estudo do contraste das correlações sucessivas, é proposta. Diversas simulações numéricas, utilizando diferentes funções densidade de probabilidade para as velocidades dos centros espalhadores, foram realizadas com intuito de testar os métodos de análise e fornecer subsídios para a interpretação de resultados in vivo. Tecidos vegetais e animais foram investigados, realizando-se o monitoramento do processo de senescência e mapas de vascularização em folhas, acompanhamento de frutos contaminados por fungos, mapeamento de atividade em flores e análise de cicatrização em ratos submetidos à cirurgia abdominal. Ensaios explorando o uso do biospeckle em microscopia são implementados. Por fim, é avaliado o potencial da técnica como ferramenta de diagnóstico em um caso de úlcera venosa crônica submetida a tratamento por meio de laserterapia de baixa intensidade. Os resultados encontrados revelaram o grande potencial em aplicações biológicas, através da construção de mapas que permitiram, por exemplo, a visualização detalhada da rede vascular de folhas vegetais. Também foi possível a identificação de áreas atacadas por micro organismos. Os estudos em tecidos animais e humanos apontaram perspectivas bastante promissoras do uso do biospeckle em ambiente clínico.

This master thesis is devoted to the study of some properties and applications of dynamic speckles on monitoring of activity in biological tissues. The first and second order space-time statistics are dicussed in an overview perspective. The main techniques used to obtain information from grainy pattern are presented, with special prominence to autocorrelation function, co-occurrence matrices, Fujii's method and the Laser Speckle Contrast Analisys (LASCA). A new methodology, based on the study of the contrast of sucessive correlations, is proposed. Several numerical simulations, using different probability density functions to velocities of scatterers, are done in order to test the analysis methods and supply subsidies for interpretation of in vivo results. Vegetable and animal tissues are investigated by monitoring of senescence process and construction of vascularization maps of leaves, accompanying of fungi contamined fruits, mapping of activity in flowers and analysis of healing in rats undergone to abdominal surgery. Experiments using the biospeckle phenomenon in microscopy are carried out. At last, it is evaluated the potentiality of the technique as diagnosis tool in a chronic vein ulcer undergone to treatment through low intensity…

Advisors/Committee Members: Muramatsu, Mikiya.

Subjects/Keywords: Atividade Biológica; Biological activity; Biospeckle; Biospeckle; Diagnóstico por Imagem; Imaging diagnostic; non-contact testing.; Teste não-destrutivo

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APA (6^th Edition):

Silva, E. R. d. (2007). Estudo das propriedades do biospeckle e suas aplicações. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/43/43134/tde-02102007-104941/ ;

Chicago Manual of Style (16^th Edition):

Silva, Emerson Rodrigo da. “Estudo das propriedades do biospeckle e suas aplicações.” 2007. Masters Thesis, University of São Paulo. Accessed January 17, 2021. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-02102007-104941/ ;.

MLA Handbook (7^th Edition):

Silva, Emerson Rodrigo da. “Estudo das propriedades do biospeckle e suas aplicações.” 2007. Web. 17 Jan 2021.

Vancouver:

Silva ERd. Estudo das propriedades do biospeckle e suas aplicações. [Internet] [Masters thesis]. University of São Paulo; 2007. [cited 2021 Jan 17]. Available from: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-02102007-104941/ ;.

Council of Science Editors:

Silva ERd. Estudo das propriedades do biospeckle e suas aplicações. [Masters Thesis]. University of São Paulo; 2007. Available from: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-02102007-104941/ ;

Cal Poly

3. Buck, Nicole V. Implementation of an Open-Source Digital Image Correlation Software for Structural Testing.

Degree: MS, Architectural Engineering, 2020, Cal Poly

URL: https://digitalcommons.calpoly.edu/theses/2215

► This thesis investigates the appropriateness of a simplified, open-source digital image correlation (DIC) software for use in quasi-static, structural testing utilizing two-dimensional (2D) DIC… (more)

▼ This thesis investigates the appropriateness of a simplified, open-source digital image correlation (DIC) software for use in quasi-static, structural testing utilizing two-dimensional (2D) DIC measurements. DIC is a non-contact optical measurement technique that uses computer vision to track unique attributes on the surface of an object. For structural testing, traditional instrumentation such as displacement sensors and strain gages are impractical for full field measurements due their limited ability to capture large amounts of data. However, over the past decade, DIC has proven a successful method for full-field kinematics measurements, making it an appealing tool for collecting high densities of accurate data. This thesis specifically studies the accuracy and limitations of the DIC software, MODEM, for various test specimens and loading conditions. This research work is part of an experimental program comprised of three phases. The first stage was conducted by another investigator on aluminum coupons tested in pure tension. These results were used to calibrate parameters (speckle pattern density, lighting, and camera settings) used with the DIC software. The second stage included pure compression tests on concrete cubes and concrete cylinders to compare the difference in results between: (i) surface curvature, (ii) camera distance, (iii) surface treatment, and (iv) speckle pattern color. The final stage involved analysis of a tension test of a concrete prism completed at the University of Auckland in an effort to assess how MODEM could be utilized to accurately detect onset and propagation of concrete cracking. Results showed the most accurate DIC strains were within 5% error when compared to traditional instrumentation for aluminum loaded in tension and within 6% error for concrete loaded in compression/tension. This level of accuracy is comparable to existing open source and commercial DIC software utilizing 2D DIC analysis. Therefore, MODEM can be used to provide accurate 2D DIC strain measurements for small and medium scale structural test specimens when using the following parameters: (i) the surface of the specimen is planar, (ii) the camera is placed accordingly so the maximum amount of zoom can be used, (iii) the surface of a test specimen is free of debris or imperfections, and (iv) a high contrast and evenly distributed speckle pattern is used. Computational analysis of the results showed that known material properties can be used to calibrate, or remove errors from, the DIC results when traditional instrumentation is not available. Additionally, results showed MODEM strain contours can be used for initial detection of cracks in concrete loaded in tension while MODEM tracking performance can be used to characterize the centerline and orientation of cracks. The experimental tests provide critical information on how to set up, run, and analyze DIC results when using MODEM. The full field measurements are of value in providing accurate data for structural testing to develop… Advisors/Committee Members: Anahid Behrouzi.

Subjects/Keywords: Digital Image Correlation; Full Field Measurements; Modem; Non-contact Measurements; Structural Testing; Civil Engineering; Structural Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Buck, N. V. (2020). Implementation of an Open-Source Digital Image Correlation Software for Structural Testing. (Masters Thesis). Cal Poly. Retrieved from https://digitalcommons.calpoly.edu/theses/2215

Chicago Manual of Style (16^th Edition):

Buck, Nicole V. “Implementation of an Open-Source Digital Image Correlation Software for Structural Testing.” 2020. Masters Thesis, Cal Poly. Accessed January 17, 2021. https://digitalcommons.calpoly.edu/theses/2215.

MLA Handbook (7^th Edition):

Buck, Nicole V. “Implementation of an Open-Source Digital Image Correlation Software for Structural Testing.” 2020. Web. 17 Jan 2021.

Vancouver:

Buck NV. Implementation of an Open-Source Digital Image Correlation Software for Structural Testing. [Internet] [Masters thesis]. Cal Poly; 2020. [cited 2021 Jan 17]. Available from: https://digitalcommons.calpoly.edu/theses/2215.

Council of Science Editors:

Buck NV. Implementation of an Open-Source Digital Image Correlation Software for Structural Testing. [Masters Thesis]. Cal Poly; 2020. Available from: https://digitalcommons.calpoly.edu/theses/2215

4. Del Bufalo, Aurelia. Effets des sensibilisants sur la synthèse de la prostaglandine E2 : Mécanismes et intérêt dans la prédiction de l’allergie de contact : Sensitizers'effects on prostaglandin E2 synthsis : mecanisms of action and potential to predict allergic contact dermatitis.

Degree: Docteur es, Immunotoxicologie, 2012, Paris, AgroParisTech

URL: http://www.theses.fr/2012AGPT0003

► Les sensibilisants de contact sont des molécules réactives électrophiles qui ont la capacité de modifier des protéines de la peau pour former un antigène. Au… (more)

▼ Les sensibilisants de contact sont des molécules réactives électrophiles qui ont la capacité de modifier des protéines de la peau pour former un antigène. Au delà de ce mécanisme d'hapténisation, le signal de danger induit par les sensibilisants conduisant à l'activation des cellules dendritiques (DC) est un élément déterminant dans l'induction de cellules T spécifiques de l'haptène. Dans le contexte du 7ième amendement à la directive cosmétique européenne, la mise en place d'une batterie de tests in vitro permettant de prédire le potentiel sensibilisant de molécules est indispensable pour l'industrie cosmétique. Tandis que la plupart des études in vitro étudient les signaux de danger induits par les sensibilisants dans des modèles homéostasiques, nous nous sommes intéressés à l'effet des sensibilisants sur la mise en place d'une réponse inflammatoire. Lorsque la lignée U937 est différenciée avec du PMA et stimulée avec du LPS, les facteurs de transcription NF-κB et Nrf2 sont activés et l'acide arachidonique (AA) est métabolisé au travers de la cascade cPLA2 / COX-2. L'ensemble de ces voies activées conduit à la production par les U937 d'un grand nombre de médiateurs inflammatoires (IL-1β, TNF-α, IL-6, IL-10, IL-8, PGE2, PGD2, TxB2). Dans ce modèle, nous avons analysé l'effet de 6 sensibilisants de potentiels variés (DNCB, PPD, HQ, PG, CIN, EUG) et montré que de façon inattendue, tous les sensibilisants étudiés diminuent significativement et de façon spécifique la production de tous les prostanoïdes et en particulier de PGE2 induite par PMA/LPS. Nous avons de plus démontré que selon les sensibilisants, les cibles de cette inhibition au sein de la cascade métabolique de l'AA diffèrent, même si elles se focalisent la plupart du temps (sauf pour le DNCB) sur l'enzyme COX-2 (inhibition de son expression et/ou de son activité). Pour le DNCB, le mécanisme d'inhibition semble plutôt impliquer sa capacité à réagir fortement avec les groupements résidus thiols, ce qui se traduit en particulier par la déplétion du GSH intracellulaire et engendrerait l'inhibition des synthases dépendantes du GSH pour leurs activités. En parallèle de cette étude mécanistique, nous avons appréhendé la problématique du point de vue statistique et vérifié sur un set plus important et diversifié de molécules (160 molécules) que le paramètre « inhibition de PGE2 » pouvait être un bon test de prédiction de l'HSRC. L'étude statistique a permis de déterminer le modèle prédictif du test PGE2 et de mettre en évidence de bonnes performances (78%) par rapport aux prédictions du LLNA. Au-delà, une certaine complémentarité du test PGE2 avec d'autres tests in vitro (MUSST, Nrf2-HTS) a pu être mise en évidence. En conclusion, au travers de cette étude, nous avons pu mettre en évidence de nouvelles propriétés biochimiques des sensibilisants. Même si la signification biologique de la diminution de PGE2 par les sensibilisants de contact demeure complexe d'interprétation, ce paramètre a permis le développement d'un test qui prédit avec de bonnes performances le… Advisors/Committee Members: Pipy, Bernard (thesis director).

Subjects/Keywords: Allergie de contact; U937; Prostaglandine E2; Tests alternatifs à l'animal de prédiction potentiel sensibilisant; Allergic contact dermatitis; U937; Prostaglandin E2; Non animal testing; 616.973

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Del Bufalo, A. (2012). Effets des sensibilisants sur la synthèse de la prostaglandine E2 : Mécanismes et intérêt dans la prédiction de l’allergie de contact : Sensitizers'effects on prostaglandin E2 synthsis : mecanisms of action and potential to predict allergic contact dermatitis. (Doctoral Dissertation). Paris, AgroParisTech. Retrieved from http://www.theses.fr/2012AGPT0003

Chicago Manual of Style (16^th Edition):

Del Bufalo, Aurelia. “Effets des sensibilisants sur la synthèse de la prostaglandine E2 : Mécanismes et intérêt dans la prédiction de l’allergie de contact : Sensitizers'effects on prostaglandin E2 synthsis : mecanisms of action and potential to predict allergic contact dermatitis.” 2012. Doctoral Dissertation, Paris, AgroParisTech. Accessed January 17, 2021. http://www.theses.fr/2012AGPT0003.

MLA Handbook (7^th Edition):

Del Bufalo, Aurelia. “Effets des sensibilisants sur la synthèse de la prostaglandine E2 : Mécanismes et intérêt dans la prédiction de l’allergie de contact : Sensitizers'effects on prostaglandin E2 synthsis : mecanisms of action and potential to predict allergic contact dermatitis.” 2012. Web. 17 Jan 2021.

Vancouver:

Del Bufalo A. Effets des sensibilisants sur la synthèse de la prostaglandine E2 : Mécanismes et intérêt dans la prédiction de l’allergie de contact : Sensitizers'effects on prostaglandin E2 synthsis : mecanisms of action and potential to predict allergic contact dermatitis. [Internet] [Doctoral dissertation]. Paris, AgroParisTech; 2012. [cited 2021 Jan 17]. Available from: http://www.theses.fr/2012AGPT0003.

Council of Science Editors:

Del Bufalo A. Effets des sensibilisants sur la synthèse de la prostaglandine E2 : Mécanismes et intérêt dans la prédiction de l’allergie de contact : Sensitizers'effects on prostaglandin E2 synthsis : mecanisms of action and potential to predict allergic contact dermatitis. [Doctoral Dissertation]. Paris, AgroParisTech; 2012. Available from: http://www.theses.fr/2012AGPT0003

Rutgers University

5. Lee, Serom, 1985-. Classification models for identifying skin sensitizers using in vitro alternatives to animal testing.

Degree: PhD, Biomedical Engineering, 2014, Rutgers University

URL: https://rucore.libraries.rutgers.edu/rutgers-lib/45328/

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Allergic contact dermatitis (ACD) is an inflammatory disease that occurs when chemicals known as sensitizers come in contact with the skin. Recent European legislation prohibits… (more)

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Allergic contact dermatitis (ACD) is an inflammatory disease that occurs when chemicals known as sensitizers come in contact with the skin. Recent European legislation prohibits animal based screens of cosmetic ingredients. Current alternatives to animal testing are limited by their poor ability to identify a subset of non-innate contact sensitizers known as pre-/pro-haptens which require transformation in the skin. Furthermore, these approaches only evaluate a single cell type with 1 or 2 biomarkers. To address this, we performed an initial study using RealSkin, a full thickness skin equivalent, in co-culture with MUTZ-3 derived Langerhan’s cells (MUTZ-LCs). This co-culture was treated with model pro-/pro-haptens from an irritant control and multiple cellular metrics were evaluated. A novel feature selection method was developed using a support vector machine (SVM) to rank the margin distances of each metric and identify biomarkers of sensitization. A panel (IL-12, IL-9, VEGF, IFN-γ) was identified by SVM and predicted sensitizers with over 90% accuracy. Although promising, this method is costly and resource intensive. Thus, we designed a more economic, high throughput screening approach to metabolize pro-hapten sensitizers. MUTZ-LCs were cultured alone and in parallel with a co-culture of HaCaT keratinocytes, dermal fibroblasts, and MUTZ-LCs. Both cultures were treated with a panel of pre- and pro-hapten sensitizers and non-sensitizers. The secretome of both cultures were evaluated for 27 cytokines, chemokines, and growth factors. Feature selection by SVM identified predictive signatures of sensitization for each culture type. These cellular metrics was used to develop a classification model of sensitization. The MUTZ-LCs classification model was 83.3% accurate at identifying pro-hapten sensitizers using MIP-1β, MIP-1α, RANTES, IL-8, and IL-9. The co-culture classification model was 89.6% accurate at identifying pro-hapten sensitizers using a panel of IL-8, GM-CSF, and RANTES. The presence of the keratinocytes and fibroblasts enhanced the identification of pre- and pro-haptens to sensitize the MUTZ-LCs. This approach also preserves the cross-talk signals between all three skin cell types. Thus, the co-culture of HaCaT keratinocytes, dermal fibroblasts, and MUTZ-LCs is an attractive, high throughput in vitro alternative to animal testing for the identification of pre- and pro-hapten skin sensitizers.

Advisors/Committee Members: Yarmush, Martin l (chair), Schloss, Rene (internal member), Maguire, Timothy (internal member), Michniak-Kohn, Bozena (internal member), Seiberg, Miri (outside member).

Subjects/Keywords: Contact dermatitis; Alternative toxicity testing

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APA (6^th Edition):

Lee, Serom, 1. (2014). Classification models for identifying skin sensitizers using in vitro alternatives to animal testing. (Doctoral Dissertation). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/45328/

Chicago Manual of Style (16^th Edition):

Lee, Serom, 1985-. “Classification models for identifying skin sensitizers using in vitro alternatives to animal testing.” 2014. Doctoral Dissertation, Rutgers University. Accessed January 17, 2021. https://rucore.libraries.rutgers.edu/rutgers-lib/45328/.

MLA Handbook (7^th Edition):

Lee, Serom, 1985-. “Classification models for identifying skin sensitizers using in vitro alternatives to animal testing.” 2014. Web. 17 Jan 2021.

Vancouver:

Lee, Serom 1. Classification models for identifying skin sensitizers using in vitro alternatives to animal testing. [Internet] [Doctoral dissertation]. Rutgers University; 2014. [cited 2021 Jan 17]. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/45328/.

Council of Science Editors:

Lee, Serom 1. Classification models for identifying skin sensitizers using in vitro alternatives to animal testing. [Doctoral Dissertation]. Rutgers University; 2014. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/45328/

University of Waterloo

6. Chwyl, Brendan. A Statistical Framework for Non-Contact Heart Rate Estimation via Photoplethysmogram Imaging.

Degree: 2016, University of Waterloo

URL: http://hdl.handle.net/10012/10788

► Although medical progress and increased health awareness over the last 60 years have reduced death rates from cardiovascular disease by more than 75%, cardiovascular disease… (more)

▼ Although medical progress and increased health awareness over the last 60 years have reduced death rates from cardiovascular disease by more than 75%, cardiovascular disease remains one of the leading causes of death, hospitalization, and cause of prescription drug use. Resting heart rate can act as an independent risk factor in cardiovascular mortality, while more detailed blood volume waveforms can offer insight on blood pressure, blood oxygenation, respiration rate, and cognitive stress. Electrocardiograms (ECGs) are widely used in the clinical setting due to their accurate measurement of heart rate and detailed capture of heart muscle depolarization, making them useful in diagnosis of specific cardiovascular conditions. However, the discomfort caused by the required adhesive patches, as well as the relatively high cost of ECG machines, introduces the need for an alternative system when only the resting heart rate is required. Photoplethysmography (PPG), the optical acquisition of blood volume pulse over time, offers one such solution. The pulse oximeter, a device which clips onto a thin extremity and measures the amount of transmitted light over time, is widely used in a clinical setting for heart rate and oxygen saturation measurements in cases where ECG is unnecessary or unavailable. Recently, a technique has been demonstrated to construct a blood volume pulse signal without the need for contact, offering a more sanitary and comfortable alternative to pulse oximetry. This technique relies on camera systems and is known as PPG imaging (PPGI). However, the accuracy of PPGI methods suffers in realistic environments with error incurred by motion, illumination variation, and natural fluctuation of the heart rate. For this reason, a statistical framework which aims to offer higher accuracy in realistic scenarios is proposed. The initial step in the framework is to construct a PPG waveform, a time series correlated to hemoglobin concentration. Here, an importance-weighted Monte Carlo sampling strategy is used to construct a PPG waveform from many time series observations. Once the PPG waveform is established, a continuous wavelet transform is applied, using the so-called pulselet as the mother wavelet, to create a response map in the time-frequency domain. The average of frequencies corresponding to the maximum response over time is used as the heart rate estimation. To verify the efficacy of the proposed framework, tests were run on two data sets; the first consists of broadband red-green-blue (RGB) colour channel video data and the second contains single channel near infrared video data. In the first case, improvements over state-of-the-art methods were shown, however; in the second case, no statistically significant improvement was observed.

Subjects/Keywords: Photoplethysmography; Non-contact; Broadband

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chwyl, B. (2016). A Statistical Framework for Non-Contact Heart Rate Estimation via Photoplethysmogram Imaging. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/10788

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chwyl, Brendan. “A Statistical Framework for Non-Contact Heart Rate Estimation via Photoplethysmogram Imaging.” 2016. Thesis, University of Waterloo. Accessed January 17, 2021. http://hdl.handle.net/10012/10788.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chwyl, Brendan. “A Statistical Framework for Non-Contact Heart Rate Estimation via Photoplethysmogram Imaging.” 2016. Web. 17 Jan 2021.

Vancouver:

Chwyl B. A Statistical Framework for Non-Contact Heart Rate Estimation via Photoplethysmogram Imaging. [Internet] [Thesis]. University of Waterloo; 2016. [cited 2021 Jan 17]. Available from: http://hdl.handle.net/10012/10788.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chwyl B. A Statistical Framework for Non-Contact Heart Rate Estimation via Photoplethysmogram Imaging. [Thesis]. University of Waterloo; 2016. Available from: http://hdl.handle.net/10012/10788

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

7. Larsson, Johan. Nonlinear Non-Destructive Testing of ship hull composites.

Degree: 2004, , School of Engineering

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3528

► Further development of an existing nonlinear ultrasound Non-Destructive Testing method is performed. The Nonlinear Wave Modulation Spectroscopy method is developed into an automated non-contact… (more)

Subjects/Keywords: Non-contact testing; Non-Destructive Testing; Ultrasonic testing; Nonlinear Wave Modulation Spectroscopy; Sound velocity; Resonance.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Larsson, J. (2004). Nonlinear Non-Destructive Testing of ship hull composites. (Thesis). , School of Engineering. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3528

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Larsson, Johan. “Nonlinear Non-Destructive Testing of ship hull composites.” 2004. Thesis, , School of Engineering. Accessed January 17, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3528.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Larsson, Johan. “Nonlinear Non-Destructive Testing of ship hull composites.” 2004. Web. 17 Jan 2021.

Vancouver:

Larsson J. Nonlinear Non-Destructive Testing of ship hull composites. [Internet] [Thesis]. , School of Engineering; 2004. [cited 2021 Jan 17]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3528.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Larsson J. Nonlinear Non-Destructive Testing of ship hull composites. [Thesis]. , School of Engineering; 2004. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3528

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Univerzitet u Beogradu

8. Petrović, Ana S., 1988-. Моделско испитивање чврстоће структура сложене просторне геометрије.

Degree: Mašinski fakultet, 2017, Univerzitet u Beogradu

URL: https://fedorabg.bg.ac.rs/fedora/get/o:16548/bdef:Content/get

►

област техничких наука, машинство-отпорност конструкција / Technical sciences-Mechanical engineering-Strength of constructions

Могућности испитивања реалних конструкција често су ограничене, посебно уколико се ради о великим конструкцијама.… (more)

▼

област техничких наука, машинство-отпорност конструкција / Technical sciences-Mechanical engineering-Strength of constructions

Могућности испитивања реалних конструкција често су ограничене, посебно уколико се ради о великим конструкцијама. Једно од решења је прављење умањеног модела са циљем да се предвиди понашање реалне конструкције, на основу понашања модела, довољне тачности. Испитивање на моделу уместо на стварној конструкцији у већини случајева резултира великом уштедом новца и времена. Осим тога, експериментални подаци добијени за једну структуру могу се искористити за предвиђање понашања групе сличних структура, односно, савремено пројектовање захтева универзалност у приступу. Циљ овог рада је да се покаже да је могуће моделско испитивање сложених структура са аспекта чврстоће конструкција, односно да се на основу напонског и деформационог стања модела предвиди напонско и деформационо стање реалне конструкције. Као испитна (огледна) конструкција усвојена је конструкција доње градње (постоља), обртне платформе и доњег дела стубова роторног багера SchRs 630, јер је за функционисање овако сложене машине од круцијалног значаја познавати напонско стање њене носеће конструкције. Дакле, полазна хипотеза ове дисертације подразумевала је, да је конструкције сложене просторне геометрије, које се састоје доминантно од плоча као конструктивних елемената, могуће испитивати моделски. Са циљем доказивања ове претпоставке, прво су урађени нумерички прорачуни, применом Методе коначних елемената, једне стварне конструкције и њеног умањеног модела. Умањеном структуром названа је структура која је од стварне структуре мања 10 пута по димензијама и по дебљинама конструктивних елемената. Умањена структура је у односу на стварну структуру оптерећена 100 пута мањим оптерећењем (у складу са поставкама Теорије сличности). У оквиру статичког прорачуна, спроведена је анализа пресликавања напона по групама градње предметне конструкције и формулисани су коефицијенти пресликавања за сваку од њих. Генерално говорећи, закључено је да је веза напона умањене структуре и стварне структуре линеарна...

Advisors/Committee Members: Maneski, Taško, 1952-.

Subjects/Keywords: Model testing; real structure; sub-scaled structure; finite element method; strength; the mapping coefficient; physical model; strain gauges; optical systems for non-contact measurement of displacement and deformation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Petrović, Ana S., 1. (2017). Моделско испитивање чврстоће структура сложене просторне геометрије. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:16548/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Petrović, Ana S., 1988-. “Моделско испитивање чврстоће структура сложене просторне геометрије.” 2017. Thesis, Univerzitet u Beogradu. Accessed January 17, 2021. https://fedorabg.bg.ac.rs/fedora/get/o:16548/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Petrović, Ana S., 1988-. “Моделско испитивање чврстоће структура сложене просторне геометрије.” 2017. Web. 17 Jan 2021.

Vancouver:

Petrović, Ana S. 1. Моделско испитивање чврстоће структура сложене просторне геометрије. [Internet] [Thesis]. Univerzitet u Beogradu; 2017. [cited 2021 Jan 17]. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:16548/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Petrović, Ana S. 1. Моделско испитивање чврстоће структура сложене просторне геометрије. [Thesis]. Univerzitet u Beogradu; 2017. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:16548/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Sydney

9. Cheng, Harriet Sara. Patch testing in New South Wales .

Degree: 2018, University of Sydney

URL: http://hdl.handle.net/2123/20448

► Allergic contact dermatitis (ACD) is characterised by type IV hypersensitivity to a specific allergen and is diagnosed by patch testing, where allergens are placed against… (more)

▼ Allergic contact dermatitis (ACD) is characterised by type IV hypersensitivity to a specific allergen and is diagnosed by patch testing, where allergens are placed against the skin. The ‘baseline series’ refers to a set of the most important allergens used as a screening series and must be relevant to the population tested. In 2015, an Australian baseline series (ABS) was proposed based on a 10-year retrospective review of patch test results in Victoria. The primary objective of this work was to describe patch test results in patients undergoing testing at The Skin Hospitals in Darlinghurst and Westmead in New South Wales. Data was retrospectively collected from The Skin Hospital’s Microsoft Access database from 1 January 2002 to 31 December 2016. Information collected included demographic details, clinical presentation and patch test results. The most recent ten-year period was used for most analyses to provide results with current relevance. In the last-ten-years 1,584 patients were patch-tested at The Skin Hospitals in NSW. The positivity rate (proportion of patients with ≥ 1 positive reaction) was 27.8%. The most frequently positive allergens were nickel sulfate, cobalt chloride, Myroxylon pereirae (balsam of Peru), fragrance mix I and p-phenylenediamine (PPD). Rates of positivity to metals, methylchloroisothiazolinone/methylisothiazolinone, PPD, colophonium and Myroxylon pereirae increased in 2012-2016 compared with 2007-2011. The ABS detected 71.5% of positive reactions and 72.9% of relevant reactions. Our study had an overall lower positivity rate and lower rates of occupational and hand dermatitis compared with data from Victoria and therefore provides useful information on the performance of the ABS in a general patch-testing clinic. Top allergens were in keeping with other Australian and International reports, with the possible exception of dodecyl gallate, which had more positive and relevant reactions than expected. The rise in nickel sensitisation, converse to some International reports, warrants ongoing surveillance as there is no current Australian legislation to regulate nickel in products contacting the skin.

Subjects/Keywords: Patch testing; allergic contact dermatitis; eczema; dermatology

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Cheng, H. S. (2018). Patch testing in New South Wales . (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/20448

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Cheng, Harriet Sara. “Patch testing in New South Wales .” 2018. Thesis, University of Sydney. Accessed January 17, 2021. http://hdl.handle.net/2123/20448.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Cheng, Harriet Sara. “Patch testing in New South Wales .” 2018. Web. 17 Jan 2021.

Vancouver:

Cheng HS. Patch testing in New South Wales . [Internet] [Thesis]. University of Sydney; 2018. [cited 2021 Jan 17]. Available from: http://hdl.handle.net/2123/20448.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Cheng HS. Patch testing in New South Wales . [Thesis]. University of Sydney; 2018. Available from: http://hdl.handle.net/2123/20448

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of California – Berkeley

10. KURY, MATTHEW Wilson. Director Based Finite Element Modeling of Rapidly Deforming Open-Celled Foams.

Degree: Mechanical Engineering, 2017, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/9fp246dg

► Traumatic brain injury (TBI) has become an serious concern for athletes and soldiers. Helmets used for preventing injury in athletics can borrow information gathered from… (more)

Subjects/Keywords: Mechanical engineering; contact; Foam; non-linear beams

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

KURY, M. W. (2017). Director Based Finite Element Modeling of Rapidly Deforming Open-Celled Foams. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/9fp246dg

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

KURY, MATTHEW Wilson. “Director Based Finite Element Modeling of Rapidly Deforming Open-Celled Foams.” 2017. Thesis, University of California – Berkeley. Accessed January 17, 2021. http://www.escholarship.org/uc/item/9fp246dg.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

KURY, MATTHEW Wilson. “Director Based Finite Element Modeling of Rapidly Deforming Open-Celled Foams.” 2017. Web. 17 Jan 2021.

Vancouver:

KURY MW. Director Based Finite Element Modeling of Rapidly Deforming Open-Celled Foams. [Internet] [Thesis]. University of California – Berkeley; 2017. [cited 2021 Jan 17]. Available from: http://www.escholarship.org/uc/item/9fp246dg.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

KURY MW. Director Based Finite Element Modeling of Rapidly Deforming Open-Celled Foams. [Thesis]. University of California – Berkeley; 2017. Available from: http://www.escholarship.org/uc/item/9fp246dg

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

11. Adams, Kirk Douglas. An Analysis of the Biomechanics of Landing of Two Groups of Athletes.

Degree: 2013, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/16894

► Athletes, even at an elite level, will perform a skill in many different ways. Even though different methods may all be successful in respect to… (more)

▼ Athletes, even at an elite level, will perform a skill in many different ways. Even though different methods may all be successful in respect to the sport, certain methods may predispose certain athletes to greater rates of injury. Females, in particular, experience an alarming rate of anterior cruciate ligament (ACL) injuries and at rates much higher than males in similar sports. The purpose of this study was to examine the biomechanics of landing from a drop for two groups of female athletes and to compare between the two groups their segmental inertial properties, landing kinematics and kinetics. Motion analysis, ground reaction forces, body segment inertial parameters and resultant joint moments of 8 varsity level female gymnasts and 8 varsity level swimmers performing ten two-footed landings onto a force plate from a nominal drop height of 0.35 meters were analyzed. For almost all body segments, the center of mass location, moment of inertia, and the length for each thigh, shank, and foot were not statistically significantly different between the two groups when normalized for body size. On landing the swimmers exhibited a statistically significant greater range of whole body center of mass motion; this was accompanied by greater ranges of motion at the ankle, knee and hip joints for this group. Almost all of the metrics for ground reaction forces were statistically significantly different between the groups, with the gymnasts having the greater values. Overall the gymnasts exhibited “stiffer” landings compared with the swimmers, in effect the gymnasts made less of an effort to dissipate the forces of the landing task than did the swimmers. The present study did have some limitations, primarily the use of motion analysis in one plane of motion. Future studies would benefit from a full three-dimensional analysis and the inclusion of males to provide another point of comparison. Advisors/Committee Members: John Henry Challis, Thesis Advisor/Co-Advisor.

Subjects/Keywords: Landings; ACL; Non-contact; Gymnasts; Swimmers

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Adams, K. D. (2013). An Analysis of the Biomechanics of Landing of Two Groups of Athletes. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/16894

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Adams, Kirk Douglas. “An Analysis of the Biomechanics of Landing of Two Groups of Athletes.” 2013. Thesis, Penn State University. Accessed January 17, 2021. https://submit-etda.libraries.psu.edu/catalog/16894.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Adams, Kirk Douglas. “An Analysis of the Biomechanics of Landing of Two Groups of Athletes.” 2013. Web. 17 Jan 2021.

Vancouver:

Adams KD. An Analysis of the Biomechanics of Landing of Two Groups of Athletes. [Internet] [Thesis]. Penn State University; 2013. [cited 2021 Jan 17]. Available from: https://submit-etda.libraries.psu.edu/catalog/16894.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Adams KD. An Analysis of the Biomechanics of Landing of Two Groups of Athletes. [Thesis]. Penn State University; 2013. Available from: https://submit-etda.libraries.psu.edu/catalog/16894

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

George Mason University

12. Kaur, Balvinder. Visible Spectrum Based Non-Contact Detection and Characterization of Blood Wave Signal Dynamics and Applications in Stress Detection .

Degree: 2016, George Mason University

URL: http://hdl.handle.net/1920/10474

► Stress is a major health concern that not only compromises our quality of life, but also affects our health and well-being. Despite its importance, our… (more)

Subjects/Keywords: Electrical engineering; Biomedical engineering; Philosophy; Non-contact Blood Wave Detection; Non-contact Differential Pulse Transit Time; Non-contact Heart Rate Variability; Non-contact Stress Detection; Visible Spectrum based Camera

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kaur, B. (2016). Visible Spectrum Based Non-Contact Detection and Characterization of Blood Wave Signal Dynamics and Applications in Stress Detection . (Thesis). George Mason University. Retrieved from http://hdl.handle.net/1920/10474

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kaur, Balvinder. “Visible Spectrum Based Non-Contact Detection and Characterization of Blood Wave Signal Dynamics and Applications in Stress Detection .” 2016. Thesis, George Mason University. Accessed January 17, 2021. http://hdl.handle.net/1920/10474.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kaur, Balvinder. “Visible Spectrum Based Non-Contact Detection and Characterization of Blood Wave Signal Dynamics and Applications in Stress Detection .” 2016. Web. 17 Jan 2021.

Vancouver:

Kaur B. Visible Spectrum Based Non-Contact Detection and Characterization of Blood Wave Signal Dynamics and Applications in Stress Detection . [Internet] [Thesis]. George Mason University; 2016. [cited 2021 Jan 17]. Available from: http://hdl.handle.net/1920/10474.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kaur B. Visible Spectrum Based Non-Contact Detection and Characterization of Blood Wave Signal Dynamics and Applications in Stress Detection . [Thesis]. George Mason University; 2016. Available from: http://hdl.handle.net/1920/10474

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

13. Karim, Kh Nafis. INTELLIGENT SYSTEM FOR MONITORING PHYSIOLOGICAL PARAMETERS USING CAMERA.

Degree: Embedded Systems, 2015, Mälardalen University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-29834

► Measuring physiological parameters or vital sign using camera has become popular in recent years. Contact-less monitoring and extraction of vital signs can be important… (more)

Subjects/Keywords: physiological parameter; Heart-rate; Non-contact

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Karim, K. N. (2015). INTELLIGENT SYSTEM FOR MONITORING PHYSIOLOGICAL PARAMETERS USING CAMERA. (Thesis). Mälardalen University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-29834

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Karim, Kh Nafis. “INTELLIGENT SYSTEM FOR MONITORING PHYSIOLOGICAL PARAMETERS USING CAMERA.” 2015. Thesis, Mälardalen University. Accessed January 17, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-29834.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Karim, Kh Nafis. “INTELLIGENT SYSTEM FOR MONITORING PHYSIOLOGICAL PARAMETERS USING CAMERA.” 2015. Web. 17 Jan 2021.

Vancouver:

Karim KN. INTELLIGENT SYSTEM FOR MONITORING PHYSIOLOGICAL PARAMETERS USING CAMERA. [Internet] [Thesis]. Mälardalen University; 2015. [cited 2021 Jan 17]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-29834.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Karim KN. INTELLIGENT SYSTEM FOR MONITORING PHYSIOLOGICAL PARAMETERS USING CAMERA. [Thesis]. Mälardalen University; 2015. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-29834

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

14. Walsh, Lorcan. Non-Contact Sleep Monitoring.

Degree: 2012, RIAN

URL: http://eprints.maynoothuniversity.ie/4212/

► "The road ahead for preventive medicine seems clear. It is the delivery of high quality, personalised (as opposed to depersonalised) comprehensive medical care to all."… (more)

▼ "The road ahead for preventive medicine seems clear. It is the delivery of high quality, personalised (as opposed to depersonalised) comprehensive medical care to all." Burney, Steiger, and Georges (1964) This world's population is ageing, and this is set to intensify over the next forty years. This demographic shift will result in signicant economic and societal burdens (partic- ularly on healthcare systems). The instantiation of a proactive, preventative approach to delivering healthcare is long recognised, yet is still proving challenging. Recent work has focussed on enabling older adults to age in place in their own homes. This may be realised through the recent technological advancements of aordable healthcare sen- sors and systems which continuously support independent living, particularly through longitudinally monitoring deviations in behavioural and health metrics. Overall health status is contingent on multiple factors including, but not limited to, physical health, mental health, and social and emotional wellbeing; sleep is implicitly linked to each of these factors. This thesis focusses on the investigation and development of an unobtrusive sleep mon- itoring system, particularly suited towards long-term placement in the homes of older adults. The Under Mattress Bed Sensor (UMBS) is an unobstrusive, pressure sensing grid designed to infer bed times and bed exits, and also for the detection of development of bedsores. This work extends the capacity of this sensor. Specically, the novel contri- butions contained within this thesis focus on an in-depth review of the state-of-the-art advances in sleep monitoring, and the development and validation of algorithms which extract and quantify UMBS-derived sleep metrics. Preliminary experimental and community deployments investigated the suitability of the sensor for long-term monitoring. Rigorous experimental development rened algorithms which extract respiration rate as well as motion metrics which outperform traditional forms of ambulatory sleep monitoring. Spatial, temporal, statistical and spatiotemporal features were derived from UMBS data as a means of describing movement during sleep. These features were compared across experimental, domestic and clinical data sets, and across multiple sleeping episodes. Lastly, the optimal classier (built using a combina- tion of the UMBS-derived features) was shown to infer sleep/wake state accurately and reliably across both younger and older cohorts. Through long-term deployment, it is envisaged that the UMBS-derived features (in- cluding spatial, temporal, statistical and spatiotemporal features, respiration rate, and sleep/wake state) may be used to provide unobtrusive, continuous insights into over- all health status, the progression of the symptoms of chronic conditions, and allow the objective measurement of daily (sleep/wake) patterns and routines.

Subjects/Keywords: Electronic Engineering; Non-contact sleep; monitoring

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Walsh, L. (2012). Non-Contact Sleep Monitoring. (Thesis). RIAN. Retrieved from http://eprints.maynoothuniversity.ie/4212/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Walsh, Lorcan. “Non-Contact Sleep Monitoring.” 2012. Thesis, RIAN. Accessed January 17, 2021. http://eprints.maynoothuniversity.ie/4212/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Walsh, Lorcan. “Non-Contact Sleep Monitoring.” 2012. Web. 17 Jan 2021.

Vancouver:

Walsh L. Non-Contact Sleep Monitoring. [Internet] [Thesis]. RIAN; 2012. [cited 2021 Jan 17]. Available from: http://eprints.maynoothuniversity.ie/4212/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Walsh L. Non-Contact Sleep Monitoring. [Thesis]. RIAN; 2012. Available from: http://eprints.maynoothuniversity.ie/4212/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rice University

15. Kumar, Mayank. Robust acquisition of Photoplethysmograms using a Camera.

Degree: MS, Engineering, 2014, Rice University

URL: http://hdl.handle.net/1911/88445

► Non-contact monitoring of vital signs, such as pulse rate, using a camera is gaining popularity because of its potential for ubiquitous in-situ low-cost health tracking.… (more)

Subjects/Keywords: camera; vital signs; non-contact; neonatal ICU

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kumar, M. (2014). Robust acquisition of Photoplethysmograms using a Camera. (Masters Thesis). Rice University. Retrieved from http://hdl.handle.net/1911/88445

Chicago Manual of Style (16^th Edition):

Kumar, Mayank. “Robust acquisition of Photoplethysmograms using a Camera.” 2014. Masters Thesis, Rice University. Accessed January 17, 2021. http://hdl.handle.net/1911/88445.

MLA Handbook (7^th Edition):

Kumar, Mayank. “Robust acquisition of Photoplethysmograms using a Camera.” 2014. Web. 17 Jan 2021.

Vancouver:

Kumar M. Robust acquisition of Photoplethysmograms using a Camera. [Internet] [Masters thesis]. Rice University; 2014. [cited 2021 Jan 17]. Available from: http://hdl.handle.net/1911/88445.

Council of Science Editors:

Kumar M. Robust acquisition of Photoplethysmograms using a Camera. [Masters Thesis]. Rice University; 2014. Available from: http://hdl.handle.net/1911/88445

16. Walsh, Lorcan. Non-Contact Sleep Monitoring.

Degree: 2012, RIAN

URL: http://mural.maynoothuniversity.ie/4212/

► "The road ahead for preventive medicine seems clear. It is the delivery of high quality, personalised (as opposed to depersonalised) comprehensive medical care to all."… (more)

▼ "The road ahead for preventive medicine seems clear. It is the delivery of high quality, personalised (as opposed to depersonalised) comprehensive medical care to all." Burney, Steiger, and Georges (1964) This world's population is ageing, and this is set to intensify over the next forty years. This demographic shift will result in signicant economic and societal burdens (partic- ularly on healthcare systems). The instantiation of a proactive, preventative approach to delivering healthcare is long recognised, yet is still proving challenging. Recent work has focussed on enabling older adults to age in place in their own homes. This may be realised through the recent technological advancements of aordable healthcare sen- sors and systems which continuously support independent living, particularly through longitudinally monitoring deviations in behavioural and health metrics. Overall health status is contingent on multiple factors including, but not limited to, physical health, mental health, and social and emotional wellbeing; sleep is implicitly linked to each of these factors. This thesis focusses on the investigation and development of an unobtrusive sleep mon- itoring system, particularly suited towards long-term placement in the homes of older adults. The Under Mattress Bed Sensor (UMBS) is an unobstrusive, pressure sensing grid designed to infer bed times and bed exits, and also for the detection of development of bedsores. This work extends the capacity of this sensor. Specically, the novel contri- butions contained within this thesis focus on an in-depth review of the state-of-the-art advances in sleep monitoring, and the development and validation of algorithms which extract and quantify UMBS-derived sleep metrics. Preliminary experimental and community deployments investigated the suitability of the sensor for long-term monitoring. Rigorous experimental development rened algorithms which extract respiration rate as well as motion metrics which outperform traditional forms of ambulatory sleep monitoring. Spatial, temporal, statistical and spatiotemporal features were derived from UMBS data as a means of describing movement during sleep. These features were compared across experimental, domestic and clinical data sets, and across multiple sleeping episodes. Lastly, the optimal classier (built using a combina- tion of the UMBS-derived features) was shown to infer sleep/wake state accurately and reliably across both younger and older cohorts. Through long-term deployment, it is envisaged that the UMBS-derived features (in- cluding spatial, temporal, statistical and spatiotemporal features, respiration rate, and sleep/wake state) may be used to provide unobtrusive, continuous insights into over- all health status, the progression of the symptoms of chronic conditions, and allow the objective measurement of daily (sleep/wake) patterns and routines.

Subjects/Keywords: Electronic Engineering; Non-contact sleep; monitoring

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APA (6^th Edition):

Walsh, L. (2012). Non-Contact Sleep Monitoring. (Thesis). RIAN. Retrieved from http://mural.maynoothuniversity.ie/4212/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Walsh, Lorcan. “Non-Contact Sleep Monitoring.” 2012. Thesis, RIAN. Accessed January 17, 2021. http://mural.maynoothuniversity.ie/4212/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Walsh, Lorcan. “Non-Contact Sleep Monitoring.” 2012. Web. 17 Jan 2021.

Vancouver:

Walsh L. Non-Contact Sleep Monitoring. [Internet] [Thesis]. RIAN; 2012. [cited 2021 Jan 17]. Available from: http://mural.maynoothuniversity.ie/4212/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Walsh L. Non-Contact Sleep Monitoring. [Thesis]. RIAN; 2012. Available from: http://mural.maynoothuniversity.ie/4212/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Virginia Tech

17. Wadhwa, Navish. Non-coalescence of Jets.

Degree: MS, Engineering Science and Mechanics, 2012, Virginia Tech

URL: http://hdl.handle.net/10919/42636

► Contrary to common intuition, free jets of fluid can ``bounce'' off each other on collision in mid-air, through the effect of a lubricating air film… (more)

Subjects/Keywords: bouncing jets; Non-coalescence; contact time; transition

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APA (6^th Edition):

Wadhwa, N. (2012). Non-coalescence of Jets. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/42636

Chicago Manual of Style (16^th Edition):

Wadhwa, Navish. “Non-coalescence of Jets.” 2012. Masters Thesis, Virginia Tech. Accessed January 17, 2021. http://hdl.handle.net/10919/42636.

MLA Handbook (7^th Edition):

Wadhwa, Navish. “Non-coalescence of Jets.” 2012. Web. 17 Jan 2021.

Vancouver:

Wadhwa N. Non-coalescence of Jets. [Internet] [Masters thesis]. Virginia Tech; 2012. [cited 2021 Jan 17]. Available from: http://hdl.handle.net/10919/42636.

Council of Science Editors:

Wadhwa N. Non-coalescence of Jets. [Masters Thesis]. Virginia Tech; 2012. Available from: http://hdl.handle.net/10919/42636

Purdue University

18. Wang, Pu. NON-DESTRUCTIVE TESTING OF DEFECTS IN THE WELDS WITH INFRARED CAMERA.

Degree: MS, Technology, 2015, Purdue University

URL: https://docs.lib.purdue.edu/open_access_theses/1111

Non-destructive testing (NDT) is a challenging area of study in testing and quality control. Different from destructive testing, this new method can reduced scrap costs and testing procedures while increasing detection speed of a flaw. Advisors/Committee Members: Qingyou Han, Duane D Dunlap, Milan Rakita.

Subjects/Keywords: infrared camera; non-destructive testing

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APA (6^th Edition):

Wang, P. (2015). NON-DESTRUCTIVE TESTING OF DEFECTS IN THE WELDS WITH INFRARED CAMERA. (Thesis). Purdue University. Retrieved from https://docs.lib.purdue.edu/open_access_theses/1111

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wang, Pu. “NON-DESTRUCTIVE TESTING OF DEFECTS IN THE WELDS WITH INFRARED CAMERA.” 2015. Thesis, Purdue University. Accessed January 17, 2021. https://docs.lib.purdue.edu/open_access_theses/1111.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wang, Pu. “NON-DESTRUCTIVE TESTING OF DEFECTS IN THE WELDS WITH INFRARED CAMERA.” 2015. Web. 17 Jan 2021.

Vancouver:

Wang P. NON-DESTRUCTIVE TESTING OF DEFECTS IN THE WELDS WITH INFRARED CAMERA. [Internet] [Thesis]. Purdue University; 2015. [cited 2021 Jan 17]. Available from: https://docs.lib.purdue.edu/open_access_theses/1111.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wang P. NON-DESTRUCTIVE TESTING OF DEFECTS IN THE WELDS WITH INFRARED CAMERA. [Thesis]. Purdue University; 2015. Available from: https://docs.lib.purdue.edu/open_access_theses/1111

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Southern California

19. Xu, Shanshan. Non-parametric multivariate regression hypothesis testing.

Degree: PhD, Mathematics, 2012, University of Southern California

URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/118232/rec/4442

► We introduce three nonparametric multivariate methods for testing the elements of the regression matrix. We investigate the nite-sample performance, robustness and heteroscedasticity of these methods.… (more)

Subjects/Keywords: non-parametric; multivariate; hypothesis testing

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APA (6^th Edition):

Xu, S. (2012). Non-parametric multivariate regression hypothesis testing. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/118232/rec/4442

Chicago Manual of Style (16^th Edition):

Xu, Shanshan. “Non-parametric multivariate regression hypothesis testing.” 2012. Doctoral Dissertation, University of Southern California. Accessed January 17, 2021. http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/118232/rec/4442.

MLA Handbook (7^th Edition):

Xu, Shanshan. “Non-parametric multivariate regression hypothesis testing.” 2012. Web. 17 Jan 2021.

Vancouver:

Xu S. Non-parametric multivariate regression hypothesis testing. [Internet] [Doctoral dissertation]. University of Southern California; 2012. [cited 2021 Jan 17]. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/118232/rec/4442.

Council of Science Editors:

Xu S. Non-parametric multivariate regression hypothesis testing. [Doctoral Dissertation]. University of Southern California; 2012. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/118232/rec/4442

University of Waterloo

20. Fartosy, Sabah. Non-destructive Evaluation of Damage in Concrete with Applications in Shallow Foundations.

Degree: 2018, University of Waterloo

URL: http://hdl.handle.net/10012/13926

► The most widely used material for civil infrastructure is reinforced concrete. The concrete deteriorates over time because of several reasons, and therefore, inspection of concrete… (more)

▼ The most widely used material for civil infrastructure is reinforced concrete. The concrete deteriorates over time because of several reasons, and therefore, inspection of concrete is necessary to ensure its compliance with the design requirements. Decision makers often have insufficient data to implement the appropriate corrective measures in the face of infrastructure failure. Better assessment methods are essential to obtain comprehensive and reliable information about the concrete elements. Although, different methods exist to inspect concrete members, there is no comprehensive technique available for condition assessment of concrete of shallow foundations. To ensure the integrity of shallow foundations during construction and during its service life, it is necessary to monitor their conditions periodically. To achieve this goal a new NDT methodology is developed to reliably evaluate the conditions of new shallow foundations without changing their future performances. Recently, there is a trend to overcome coupling issues between the transducers and the object under investigation, by installing sensor networks in concrete to assess its integrity. Although many NDT approaches are designed to evaluate the integrity of concrete structural elements, shallow foundations, which are concrete elements embedded in soil, have received less attention. The challenging aspect of characterizing shallow foundations is limited accessibility for in-service foundation inspections because of structural restrictions. Even when accessibility is possible, the NDT methods (ultrasonic pulse velocity, UPV) used may produce measurements with high uncertainties because of inconsistent coupling between the transducer and the surface of the material being tested. In the current research project, a new NDT procedure is developed based on design of new transducers embedded at the base of lab-scale concrete foundation models, and these transducers are waterproof and used as receivers. The transducers consist of radial-mode piezoceramics that can detect waves from different orientations. The developed methodology relies mainly on two methods to emit the transmission pulse; either using a direct contact method by gluing the transducer to the concrete surface or using a plastic tube partially embedded in concrete and filled with water. The first procedure is used when the accessibility to the top surface of the foundations is possible; otherwise, the second option is employed to reach the concrete surface of foundations. The new methodology can be used in different stages: during construction of foundations to monitor the uniformity and quality of the concrete, and during in-service life to periodically assess the condition of the foundations, specifically after an event that may cause severe damage in concrete such as earthquake and overloading. To verify the applicability of the methodology, unreinforced and reinforced shallow foundation lab-scale concretemodels were tested in the laboratory under uniaxial…

Subjects/Keywords: Non-destructive testing; Shallow foundations

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APA (6^th Edition):

Fartosy, S. (2018). Non-destructive Evaluation of Damage in Concrete with Applications in Shallow Foundations. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/13926

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Fartosy, Sabah. “Non-destructive Evaluation of Damage in Concrete with Applications in Shallow Foundations.” 2018. Thesis, University of Waterloo. Accessed January 17, 2021. http://hdl.handle.net/10012/13926.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Fartosy, Sabah. “Non-destructive Evaluation of Damage in Concrete with Applications in Shallow Foundations.” 2018. Web. 17 Jan 2021.

Vancouver:

Fartosy S. Non-destructive Evaluation of Damage in Concrete with Applications in Shallow Foundations. [Internet] [Thesis]. University of Waterloo; 2018. [cited 2021 Jan 17]. Available from: http://hdl.handle.net/10012/13926.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Fartosy S. Non-destructive Evaluation of Damage in Concrete with Applications in Shallow Foundations. [Thesis]. University of Waterloo; 2018. Available from: http://hdl.handle.net/10012/13926

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

21. Lee, Dae Young. Wireless Testing of Integrated Circuits.

Degree: PhD, Electrical Engineering, 2012, University of Michigan

URL: http://hdl.handle.net/2027.42/93993

► Integrated circuits (ICs) are usually tested during manufacture by means of automatic testing equipment (ATE) employing probe cards and needles that make repeated physical contact… (more)

▼ Integrated circuits (ICs) are usually tested during manufacture by means of automatic testing equipment (ATE) employing probe cards and needles that make repeated physical contact with the ICs under test. Such direct-contact probing is very costly and imposes limitations on the use of ATE. For example, the probe needles must be frequently cleaned or replaced, and some emerging technologies such as three-dimensional ICs cannot be probed at all. As an alternative to conventional probe-card testing, wireless testing has been proposed. It mitigates many of the foregoing problems by replacing probe needles and contact points with wireless communication circuits. However, wireless testing also raises new problems which are poorly understood such as: What is the most suitable wireless communication technique to employ, and how well does it work in practice? This dissertation addresses the design and implementation of circuits to support wireless testing of ICs. Various wireless testing methods are investigated and evaluated with respect to their practicality. The research focuses on near-field capacitive communication because of its efficiency over the very short ranges needed during IC manufacture. A new capacitive channel model including chip separation, cross-talk, and misalignment effects is proposed and validated using electro-magnetic simulation studies to provide the intuitions for efficient antenna and circuit design. We propose a compact clock and data recovery architecture to avoid a dedicated clock channel. An analytical model which predicts the DC-level fluctuation due to the capacitive channel is presented. Based on this model, feed-forward clock selection is designed to enhance performance. A method to select proper channel termination is discussed to maximize the channel efficiency for return-to-zero signaling. Two prototype ICs incorporating wireless testing systems were fabricated and tested with the proposed methods of testing digital circuits. Both successfully demonstrated gigahertz communication speeds with a bit-error rate less than 10^−11. A third prototype IC containing analog voltage measurement circuits was implemented to determine the feasibility of wirelessly testing analog circuits. The fabricated prototype achieved satisfactory voltage measurement with 1 mV resolution. Our work demonstrates the validity of the proposed models and the feasibility of near-field capacitive communication for wireless testing of ICs. Advisors/Committee Members: Wentzloff, David D. (committee member), Hayes, John Patrick (committee member), Anderson, David J. (committee member), Flynn, Michael (committee member).

Subjects/Keywords: Wireless Testing; Non-contact Testing; Capacitive Coupling; Clock and Data Recovery; Electrical Engineering; Engineering

…x5B;12], and (b) inductively-coupled non-contact probecard [71]… …flexible location of contact points [2]. They are unsuitable for parallel testing of… …direct-contact testing mostly derive from the physical contact between the wafer and the probe… …flexibility of contact location as well, making both SIP testing and parallel testing possible… …compatible with today’s scaling trends. Non-contact probes can mitigate or even get rid of the…

10 more images…

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APA (6^th Edition):

Lee, D. Y. (2012). Wireless Testing of Integrated Circuits. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/93993

Chicago Manual of Style (16^th Edition):

Lee, Dae Young. “Wireless Testing of Integrated Circuits.” 2012. Doctoral Dissertation, University of Michigan. Accessed January 17, 2021. http://hdl.handle.net/2027.42/93993.

MLA Handbook (7^th Edition):

Lee, Dae Young. “Wireless Testing of Integrated Circuits.” 2012. Web. 17 Jan 2021.

Vancouver:

Lee DY. Wireless Testing of Integrated Circuits. [Internet] [Doctoral dissertation]. University of Michigan; 2012. [cited 2021 Jan 17]. Available from: http://hdl.handle.net/2027.42/93993.

Council of Science Editors:

Lee DY. Wireless Testing of Integrated Circuits. [Doctoral Dissertation]. University of Michigan; 2012. Available from: http://hdl.handle.net/2027.42/93993

22. Hall, Kerry S. Air-coupled ultrasonic tomographic imaging of concrete elements.

Degree: PhD, 0106, 2011, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/26142

► Ultrasonic tomography is a powerful tool for identifying defects within an object or structure. This method can be applied on structures where x-ray tomography is… (more)

▼ Ultrasonic tomography is a powerful tool for identifying defects within an object or structure. This method can be applied on structures where x-ray tomography is impractical due to size, low contrast, or safety concerns. By taking many ultrasonic pulse velocity (UPV) readings through the object, an image of the internal velocity variations can be constructed. Air-coupled UPV can allow for more automated and rapid collection of data for tomography of concrete. This research aims to integrate recent developments in air-coupled ultrasonic measurements with advanced tomography technology and apply them to concrete structures. First, non-contact and semi-contact sensor systems are developed for making rapid and accurate UPV measurements through PVC and concrete test samples. A customized tomographic reconstruction program is developed to provide full control over the imaging process including full and reduced spectrum tomographs with percent error and ray density calculations. Finite element models are also used to determine optimal measurement configurations and analysis procedures for efficient data collection and processing. Non-contact UPV is then implemented to image various inclusions within 6 inch (152 mm) PVC and concrete cylinders. Although there is some difficulty in identifying high velocity inclusions, reconstruction error values were in the range of 1.1-1.7% for PVC and 3.6% for concrete. Based upon the success of those tests, further data are collected using non-contact, semi-contact, and full contact measurements to image 12 inch (305 mm) square concrete cross-sections with 1 inch (25 mm) reinforcing bars and 2 inch (51 mm) square embedded damage regions. Due to higher noise levels in collected signals, tomographs of these larger specimens show reconstruction error values in the range of 10-18%. Finally, issues related to the application of these techniques to full-scale concrete structures are discussed. Advisors/Committee Members: Popovics, John S. (advisor), Popovics, John S. (Committee Chair), Oelze, Michael L. (committee member), LaFave, James M. (committee member), Mondal, Paramita (committee member).

Subjects/Keywords: Air-coupled; Non-contact; Ultrasonic pulse velocity (UPV); Non-destructive testing (NDT); Nondestructive testing; Concrete; Tomography; Imaging

…with cracking section A from non-contact UPV measurements… …with cracking section B from non-contact UPV measurements… …process blocks broad application. There has been recent interest in using non-contact or air… …significant challenge in the non-destructive evaluation of concrete. Non-contact measurements bring… …with cracking section A from semi-contact UPV measurements…

10 more images…

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APA (6^th Edition):

Hall, K. S. (2011). Air-coupled ultrasonic tomographic imaging of concrete elements. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/26142

Chicago Manual of Style (16^th Edition):

Hall, Kerry S. “Air-coupled ultrasonic tomographic imaging of concrete elements.” 2011. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed January 17, 2021. http://hdl.handle.net/2142/26142.

MLA Handbook (7^th Edition):

Hall, Kerry S. “Air-coupled ultrasonic tomographic imaging of concrete elements.” 2011. Web. 17 Jan 2021.

Vancouver:

Hall KS. Air-coupled ultrasonic tomographic imaging of concrete elements. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2011. [cited 2021 Jan 17]. Available from: http://hdl.handle.net/2142/26142.

Council of Science Editors:

Hall KS. Air-coupled ultrasonic tomographic imaging of concrete elements. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2011. Available from: http://hdl.handle.net/2142/26142

Syracuse University

23. Khanduri, Prashant. SEQUENTIAL METHODS FOR NON-PARAMETRIC HYPOTHESIS TESTING.

Degree: PhD, Electrical Engineering and Computer Science, 2019, Syracuse University

URL: https://surface.syr.edu/etd/1124

► In today’s world, many applications are characterized by the availability of large amounts of complex-structured data. It is not always possible to fit the… (more)

▼ In today’s world, many applications are characterized by the availability of large amounts of complex-structured data. It is not always possible to fit the data to predefined models or distributions. Model dependent signal processing approaches are often susceptible to mismatches between the data and the assumed model. In cases where the data does not conform to the assumed model, providing sufficient performance guarantees becomes a challenging task. Therefore, it is important to devise methods that are model-independent, robust, provide sufficient performance guarantees for the task at hand and, at the same time, are simple to implement. The goal of this dissertation is to develop such algorithms for two-sided sequential binary hypothesis testing. In this dissertation, we propose two algorithms for sequential non-parametric hypothesis testing. The proposed algorithms are based on the random distortion testing (RDT) framework. The RDT framework addresses the problem of testing whether a random signal observed in additive noise deviates by more than a specified tolerance from a fixed model. The data-based approach is non-parametric in the sense that the underlying signal distributions under each hypothesis are assumed to be unknown. Importantly, we show that the proposed algorithms are not only robust but also provide performance guarantees in the non-asymptotic regimes in contrast to the popular non-parametric likelihood ratio based approaches which provide only asymptotic performance guarantees. In the first part of the dissertation, we develop a sequential algorithm SeqRDT. We first introduce a few mild assumptions required to control the error probabilities of the algorithm. We then analyze the asymptotic properties of the algorithm along with the behavior of the thresholds. Finally, we derive the upper bounds on the probabilities of false alarm (PFA) and missed detection (PMD) and demonstrate how to choose the algorithm parameters such that PFA and PMD can be guaranteed to stay below pre-specified levels. Specifically, we present two ways to design the algorithm: We first introduce the notion of a buffer and show that with the help of a few mild assumptions we can choose an appropriate buffer size such that PFA and PMD can be controlled. Later, we eliminate the buffer by introducing additional parameters and show that with the choice of appropriate parameters we can still control the probabilities of error of the algorithm. In the second part of the dissertation, we propose a truncated (finite horizon) algorithm, TSeqRDT, for the two-sided binary hypothesis testing problem. We first present the optimal fixed-sample-size (FSS) test for the hypothesis testing problem and present a few important preliminary results required to design the truncated algorithm. Similar, to the non-truncated case we first analyze the properties of the thresholds and then derive the upper bounds on PFA and PMD. We then choose the thresholds such that the proposed… Advisors/Committee Members: Pramod K. Varshney.

Subjects/Keywords: non-parametric Hypothesis Testing; random distortion testing; Sequential testing; Engineering

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APA (6^th Edition):

Khanduri, P. (2019). SEQUENTIAL METHODS FOR NON-PARAMETRIC HYPOTHESIS TESTING. (Doctoral Dissertation). Syracuse University. Retrieved from https://surface.syr.edu/etd/1124

Chicago Manual of Style (16^th Edition):

Khanduri, Prashant. “SEQUENTIAL METHODS FOR NON-PARAMETRIC HYPOTHESIS TESTING.” 2019. Doctoral Dissertation, Syracuse University. Accessed January 17, 2021. https://surface.syr.edu/etd/1124.

MLA Handbook (7^th Edition):

Khanduri, Prashant. “SEQUENTIAL METHODS FOR NON-PARAMETRIC HYPOTHESIS TESTING.” 2019. Web. 17 Jan 2021.

Vancouver:

Khanduri P. SEQUENTIAL METHODS FOR NON-PARAMETRIC HYPOTHESIS TESTING. [Internet] [Doctoral dissertation]. Syracuse University; 2019. [cited 2021 Jan 17]. Available from: https://surface.syr.edu/etd/1124.

Council of Science Editors:

Khanduri P. SEQUENTIAL METHODS FOR NON-PARAMETRIC HYPOTHESIS TESTING. [Doctoral Dissertation]. Syracuse University; 2019. Available from: https://surface.syr.edu/etd/1124

University of Saskatchewan

24. Kisin, Aleksandar. Evaluation of Mitigative Techniques for Non-Contact Lap Splices in Concrete Block Construction.

Degree: 2014, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2014-04-1497

► A previously completed study in the field of concrete block construction by Ahmed and Feldman (2012) indicated that, on average, the reinforcing bars in non-contact… (more)

▼ A previously completed study in the field of concrete block construction by Ahmed and Feldman (2012) indicated that, on average, the reinforcing bars in non-contact lap splices, where the lapped bars are located in adjacent cells, only develop 71% of the tensile resistance of spliced bars which are in contact. An experimental program was therefore initiated to design and evaluate remedial measures which can potentially increase the tensile resistance of non-contact lap splices to that of contact lap splice of the same lap length. Implementation of the proposed measures in various field situations was also analyzed. Six unique remedial splice details, along with standard contact and unaltered non-contact lap splices were evaluated and compared. The mitigative details included providing additional confinement, installing knock-out webs, placing splice reinforcement between the lapped bars, and combinations of these aforementioned details. Three replicates of each splice detail were constructed for a total of 24 wall splice specimens. Each wall splice specimen was reinforced with No. 15 Grade 400 deformed steel reinforcing bars with 200 mm lap splice lengths at located the midspan. The specimens were tested in a horizontal position under a monotonic, four-point loading geometry. Load and deflection data were collected throughout testing and were subsequently used in an iterative moment-curvature analysis to calculate the maximum tensile resistance of the spliced reinforcement. This was then used to compare the structural performance of each remedial splice detail to the standard contact and non-contact lap splices. The wall splice specimens which contained non-contact lap splices with knock-out webs, s-shaped, and transverse reinforcement in the splice region achieved similar tensile capacities as the wall splice specimens with standard contact lap splices. Industry professionals have indicated that the installation of the remedial measures evaluated in this study would not affect the constructability of masonry assemblages in field situations. The splice detail with knock-out webs confined within the lap splice length was determined to be the most viable procedure as it can be installed to increase the resistance of non-contact lap splices in almost all construction situations. This remedial procedure was able to improve the tensile resistance of the lapped reinforcement by 63% compared to the wall splice specimens with standard non-contact lap splices. Advisors/Committee Members: Feldman, Lisa R., Sparling, Bruce, Wegner, Leon, Thompson, David P..

Subjects/Keywords: Bond; lap splices (contact & non-contact); concrete block construction; field implementation; knockout webs; transverse reinforcement

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APA (6^th Edition):

Kisin, A. (2014). Evaluation of Mitigative Techniques for Non-Contact Lap Splices in Concrete Block Construction. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2014-04-1497

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kisin, Aleksandar. “Evaluation of Mitigative Techniques for Non-Contact Lap Splices in Concrete Block Construction.” 2014. Thesis, University of Saskatchewan. Accessed January 17, 2021. http://hdl.handle.net/10388/ETD-2014-04-1497.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kisin, Aleksandar. “Evaluation of Mitigative Techniques for Non-Contact Lap Splices in Concrete Block Construction.” 2014. Web. 17 Jan 2021.

Vancouver:

Kisin A. Evaluation of Mitigative Techniques for Non-Contact Lap Splices in Concrete Block Construction. [Internet] [Thesis]. University of Saskatchewan; 2014. [cited 2021 Jan 17]. Available from: http://hdl.handle.net/10388/ETD-2014-04-1497.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kisin A. Evaluation of Mitigative Techniques for Non-Contact Lap Splices in Concrete Block Construction. [Thesis]. University of Saskatchewan; 2014. Available from: http://hdl.handle.net/10388/ETD-2014-04-1497

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology

25. Bisht, Anirudh (author). Motion artefact reference sensor study for ECG signals.

Degree: 2018, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:509415da-bc97-4553-8545-03a08763835a

► ECG signals captured almost always have motion artefact noise. This noise arises due to relative motion between the ECG electrode and skin. To remove this… (more)

Subjects/Keywords: Motion artefacts; ECG; Embedded Systems; connected health; non-contact ecg; dry-contact ecg

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APA (6^th Edition):

Bisht, A. (. (2018). Motion artefact reference sensor study for ECG signals. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:509415da-bc97-4553-8545-03a08763835a

Chicago Manual of Style (16^th Edition):

Bisht, Anirudh (author). “Motion artefact reference sensor study for ECG signals.” 2018. Masters Thesis, Delft University of Technology. Accessed January 17, 2021. http://resolver.tudelft.nl/uuid:509415da-bc97-4553-8545-03a08763835a.

MLA Handbook (7^th Edition):

Bisht, Anirudh (author). “Motion artefact reference sensor study for ECG signals.” 2018. Web. 17 Jan 2021.

Vancouver:

Bisht A(. Motion artefact reference sensor study for ECG signals. [Internet] [Masters thesis]. Delft University of Technology; 2018. [cited 2021 Jan 17]. Available from: http://resolver.tudelft.nl/uuid:509415da-bc97-4553-8545-03a08763835a.

Council of Science Editors:

Bisht A(. Motion artefact reference sensor study for ECG signals. [Masters Thesis]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:509415da-bc97-4553-8545-03a08763835a

University of New Mexico

26. Jalalpour, Mohammad. Structural health monitoring of bolted joints using thermal contact resistance and ultrasonic signals.

Degree: Civil Engineering, 2012, University of New Mexico

URL: http://hdl.handle.net/1928/21044

► Structural health monitoring (SHM) is the set of non-intrusive techniques used for early damage detection and recognition in structures. Using advances from communication and sensing… (more)

Subjects/Keywords: Structural health monitoring; Bolted joints – Testing; Ultrasonic testing; Contact mechanics; Bolted joints – Thermal properties.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jalalpour, M. (2012). Structural health monitoring of bolted joints using thermal contact resistance and ultrasonic signals. (Doctoral Dissertation). University of New Mexico. Retrieved from http://hdl.handle.net/1928/21044

Chicago Manual of Style (16^th Edition):

Jalalpour, Mohammad. “Structural health monitoring of bolted joints using thermal contact resistance and ultrasonic signals.” 2012. Doctoral Dissertation, University of New Mexico. Accessed January 17, 2021. http://hdl.handle.net/1928/21044.

MLA Handbook (7^th Edition):

Jalalpour, Mohammad. “Structural health monitoring of bolted joints using thermal contact resistance and ultrasonic signals.” 2012. Web. 17 Jan 2021.

Vancouver:

Jalalpour M. Structural health monitoring of bolted joints using thermal contact resistance and ultrasonic signals. [Internet] [Doctoral dissertation]. University of New Mexico; 2012. [cited 2021 Jan 17]. Available from: http://hdl.handle.net/1928/21044.

Council of Science Editors:

Jalalpour M. Structural health monitoring of bolted joints using thermal contact resistance and ultrasonic signals. [Doctoral Dissertation]. University of New Mexico; 2012. Available from: http://hdl.handle.net/1928/21044

27. Soule de lafont, Marie-France. Conception d’un connecteur élément fini pour la simulation des assemblages boulonnés : Conception of a Finite Element Connector for the Simulation of Bolted Assemblies.

Degree: Docteur es, Mécanique des solides, 2017, Université Paris-Saclay (ComUE)

URL: http://www.theses.fr/2017SACLN021

►

Le dimensionnement des liaisons boulonnées représente une part non négligeable du travail des bureaux d’études des industries aéronautiques. En effet leur nombre peut varier de… (more)

▼

Le dimensionnement des liaisons boulonnées représente une part non négligeable du travail des bureaux d’études des industries aéronautiques. En effet leur nombre peut varier de plusieurs milliers à plusieurs millions selon le type d’avion. À l’heure actuelle la mise au point de ce type d’attache se fait grâce à des éléments finis en trois dimensions. La complexité des phénomènes mis en jeux par ce type de connexion tels que le contact le frottement et les jeux entraînent des calculs non linéaires très chronophages.L’objectif des travaux de thèse a été de proposer un connecteur élément fini remplaçant l’ensemble de la discrétisation 3D d’un boulon pour les calculs numériques de dimensionnement en étant basé sur des paramètres liés au comportement mécanique.La mise au point d’un algorithme prenant en compte le contact afin de modéliser le comportement global des parties assemblées fut le point de départ de la réflexion.Cet algorithme a été implémenté au sein du logiciel Samcef à travers une routine codée en Fortran 77.Des tests de qualifications du comportement normal et tangentiel ont été effectués afin de valider l’algorithme mis au point.Une méthode d’identification des paramètres du connecteur est ici proposée : certains peuvent être déterminés de manière analytique et d’autres de manière numérique.Enfin des cas tests de validation sur des assemblages industriels ont été effectués afin de mettre en évidence un gain en temps de calcul conséquent tout en maintenant une qualité suffisante pour le dimensionnement.

The design of bolted connections represents a significant part of the work of research department of aeronautical industries. Indeed, their number can vary from several thousands to several millions depending on the aircraft type. At the present time, the development of this type of attachment is done with finite elements in three dimensions. The complexity of concerned phenomena by this type of connection as the contact friction and gaps requires nonlinear computations which are very time consuming.The aim of the thesis was to propose a finite element connector for replacing the whole 3D discretisation of a bolt during the design computations while being based on parameters related to mechanical behaviour.The development of an algorithm taking into account contacts to model the overall behaviour of the parts was the starting point of the reflexion.Then this algorithm was implemented in the SAMCEF software through a routine coded in Fortran 77.Normal and tangential behaviour qualification tests were performed to validate the algorithm developed.A method for identifying connector parameters is proposed here, some of these parameters can be determined using an analytical approach, others need a numerical one.Finally, validations on industrial test cases were carried out to prove a substantial cpu time savings while maintaining a good level of quality.

Advisors/Committee Members: Boucard, Pierre-Alain (thesis director).

Subjects/Keywords: Liaisons boulonées; Connecteur élément finis non linéaire; Contact frottant; Identification; Bolted assemblies; Non-Linear finite element connector; Contact with friction; Identification

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Soule de lafont, M. (2017). Conception d’un connecteur élément fini pour la simulation des assemblages boulonnés : Conception of a Finite Element Connector for the Simulation of Bolted Assemblies. (Doctoral Dissertation). Université Paris-Saclay (ComUE). Retrieved from http://www.theses.fr/2017SACLN021

Chicago Manual of Style (16^th Edition):

Soule de lafont, Marie-France. “Conception d’un connecteur élément fini pour la simulation des assemblages boulonnés : Conception of a Finite Element Connector for the Simulation of Bolted Assemblies.” 2017. Doctoral Dissertation, Université Paris-Saclay (ComUE). Accessed January 17, 2021. http://www.theses.fr/2017SACLN021.

MLA Handbook (7^th Edition):

Soule de lafont, Marie-France. “Conception d’un connecteur élément fini pour la simulation des assemblages boulonnés : Conception of a Finite Element Connector for the Simulation of Bolted Assemblies.” 2017. Web. 17 Jan 2021.

Vancouver:

Soule de lafont M. Conception d’un connecteur élément fini pour la simulation des assemblages boulonnés : Conception of a Finite Element Connector for the Simulation of Bolted Assemblies. [Internet] [Doctoral dissertation]. Université Paris-Saclay (ComUE); 2017. [cited 2021 Jan 17]. Available from: http://www.theses.fr/2017SACLN021.

Council of Science Editors:

Soule de lafont M. Conception d’un connecteur élément fini pour la simulation des assemblages boulonnés : Conception of a Finite Element Connector for the Simulation of Bolted Assemblies. [Doctoral Dissertation]. Université Paris-Saclay (ComUE); 2017. Available from: http://www.theses.fr/2017SACLN021

28. Oumaziz, Paul. Une méthode de décomposition de domaine mixte non-intrusive pour le calcul parallèle d’assemblages : A non-invasive mixed domain decomposition for parallel computation of assemblies.

Degree: Docteur es, Mécanique des solides, 2017, Université Paris-Saclay (ComUE)

URL: http://www.theses.fr/2017SACLN030

►

Les assemblages sont des éléments critiques pour les structures industrielles. De fortes non-linéarités de type contact frottant, ainsi que des précharges mal maîtrisées rendent complexe… (more)

▼

Les assemblages sont des éléments critiques pour les structures industrielles. De fortes non-linéarités de type contact frottant, ainsi que des précharges mal maîtrisées rendent complexe tout dimensionnement précis. Présents en très grand nombre sur les structures industrielles (quelques millions pour un A380), cela implique de rafiner les modèles localement et donc de gérer des problèmes numé-riques de très grandes tailles. Les nombreuses interfaces de contact frottant sont des sources de difficultés de convergence pour les simulations numériques. Il est donc nécessaire de faire appel à des méthodes robustes. Il s’agit d’utiliser des méthodes itératives de décomposition de domaine, permettant de gérer des modèles numériques extrêmement grands, couplées à des techniques adaptées afin de prendre en compte les non-linéarités de contact aux interfaces entre sous-domaines. Ces méthodes de décomposition de domaine restent encore très peu utilisées dans un cadre industriel. Des développements internes aux codes éléments finis sont souvent nécessaires et freinent ce transfert du monde académique au monde industriel.Nous proposons, dans ces travaux de thèse, une mise-en-oeuvre non intrusive de ces méthodes de décomposition de domaine : c’est-à-dire sans développement au sein du code source. En particulier, nous nous intéressons à la méthode Latin dont la philosophie est particulièrement adaptée aux problèmes non linéaires. La structure est décomposée en sous-domaines reliés entre eux au travers d’interfaces. Avec la méthode Latin, les non-linéarités sont résolues séparément des aspects linéaires. La résolution est basée sur un schéma itératif à deux directions de recherche qui font dialoguer les problèmes linéaires globaux etles problèmes locaux non linéaires.Au cours de ces années de thèse, nous avons développé un outil totalement non intrusif sous Code_Aster permettant de résoudre par une technique de décomposition de domaine mixte des problèmes d’assemblage. Les difficultés posées par le caractère mixte de la méthode Latin sont résolues par l’introduction d’une direction de recherche non locale. Des conditions de Robin sur les interfaces des sous-domaines sont alors prises en compte simplement sans modifier les sources de Code_Aster. Nous avons proposé une réécriture algébrique de l’approche multi-échelle assurant l’extensibilité de la méthode. Nous nous sommes aussi intéressés à coupler la méthode Latin en décomposition de domaine à un algorithme de Krylov. Appliqué uniquement à un problème sous-structuré avec interfaces parfaites, ce couplage permet d’accélérer la convergence. Des structures préchargées avec de nombreuses interfaces de contact frottant ont été traitées. Des simulations qui n’auraient pu être menées par un calcul direct sous Code_Aster ont été réalisées via cette stratégie de décomposition de domaine non intrusive.

Abstract : Assemblies are critical elements for industrial structures. Strong non-linearities such as frictional contact, as well as poorly controlled preloads make complex all accurate…

Advisors/Committee Members: Boucard, Pierre-Alain (thesis director), Gosselet, Pierre (thesis director).

Subjects/Keywords: Décomposition de domaine; Méthode LATIN; Calcul non-Intrusif; Assemblages; Contact; Domain decomposition; LATIN method; Non-Invasive computation; Assembly; Contact

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Oumaziz, P. (2017). Une méthode de décomposition de domaine mixte non-intrusive pour le calcul parallèle d’assemblages : A non-invasive mixed domain decomposition for parallel computation of assemblies. (Doctoral Dissertation). Université Paris-Saclay (ComUE). Retrieved from http://www.theses.fr/2017SACLN030

Chicago Manual of Style (16^th Edition):

Oumaziz, Paul. “Une méthode de décomposition de domaine mixte non-intrusive pour le calcul parallèle d’assemblages : A non-invasive mixed domain decomposition for parallel computation of assemblies.” 2017. Doctoral Dissertation, Université Paris-Saclay (ComUE). Accessed January 17, 2021. http://www.theses.fr/2017SACLN030.

MLA Handbook (7^th Edition):

Oumaziz, Paul. “Une méthode de décomposition de domaine mixte non-intrusive pour le calcul parallèle d’assemblages : A non-invasive mixed domain decomposition for parallel computation of assemblies.” 2017. Web. 17 Jan 2021.

Vancouver:

Oumaziz P. Une méthode de décomposition de domaine mixte non-intrusive pour le calcul parallèle d’assemblages : A non-invasive mixed domain decomposition for parallel computation of assemblies. [Internet] [Doctoral dissertation]. Université Paris-Saclay (ComUE); 2017. [cited 2021 Jan 17]. Available from: http://www.theses.fr/2017SACLN030.

Council of Science Editors:

Oumaziz P. Une méthode de décomposition de domaine mixte non-intrusive pour le calcul parallèle d’assemblages : A non-invasive mixed domain decomposition for parallel computation of assemblies. [Doctoral Dissertation]. Université Paris-Saclay (ComUE); 2017. Available from: http://www.theses.fr/2017SACLN030

University of Pretoria

29. [No author]. The construct equivalence of the Customer Contact Styles Questionnaire (CCSQ7.2) for proctored and unproctored administration groups .

Degree: 2012, University of Pretoria

URL: http://upetd.up.ac.za/thesis/available/etd-02212012-120655/

► The advent of the Internet in personnel selection has brought with it many opportunities, challenges and concerns. The opportunities afforded to the employer include, among… (more)

▼ The advent of the Internet in personnel selection has brought with it many opportunities, challenges and concerns. The opportunities afforded to the employer include, among others, increased security, a reduction in the resources needed, reduced geographical constraints, reduced time to hire, immediate scoring and a lowering of costs. Owing to these benefits, the use of the Internet for psychological testing will continue to become more prevalent in personnel selection over the next few years. The use and acceptance of the Internet has encouraged organisations and assessment practitioners to make use of Internet-delivered testing as the preferred mode of administration, especially in view of the benefits that it offers to the employer, as well as to the candidate. Internet-delivered testing brings with it a few concerns and many organisations are still making use of the paper-and-pencil version of an instrument even though it is available in an online version. This is because of concerns over measurement equivalence, as the paper-and-pencil version is seen as a “safer” and more accepted mode of administration. There are also many test publishers that would like to take advantage of the practicability of Internet-delivered testing by converting their current selection procedures to an Internet format. This conversion cannot simply be assumed and needs to be examined and documented for each instrument. The primary purpose of this study is to determine the construct equivalence of the Customer Contact Styles Questionnaire (CCSQ7.2) when it is administered via paper-and-pencil in the presence of a proctor and when it is administered online in the absence of a proctor. The aim is to determine whether the online version of the CCSQ7.2 can be considered equivalent to its paper-and-pencil counterpart without loss of psychometric property. The results of the study revealed that the mode in which the CCSQ7.2 is administered does not compromise scale reliabilities and that the relationship between scales of the CCSQ7.2 are not affected by modes of administration. It can thus be said with confidence that the online version of the CCSQ7.2 can be considered equivalent to its paper-and-pencil counterpart without loss of psychometric property. Copyright Advisors/Committee Members: Dr C Olckers (advisor).

Subjects/Keywords: Customer contact styles questionnaire; Construct equivalence; Internet-delivered testing; UCTD

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

author], [. (2012). The construct equivalence of the Customer Contact Styles Questionnaire (CCSQ7.2) for proctored and unproctored administration groups . (Masters Thesis). University of Pretoria. Retrieved from http://upetd.up.ac.za/thesis/available/etd-02212012-120655/

Chicago Manual of Style (16^th Edition):

author], [No. “The construct equivalence of the Customer Contact Styles Questionnaire (CCSQ7.2) for proctored and unproctored administration groups .” 2012. Masters Thesis, University of Pretoria. Accessed January 17, 2021. http://upetd.up.ac.za/thesis/available/etd-02212012-120655/.

MLA Handbook (7^th Edition):

author], [No. “The construct equivalence of the Customer Contact Styles Questionnaire (CCSQ7.2) for proctored and unproctored administration groups .” 2012. Web. 17 Jan 2021.

Vancouver:

author] [. The construct equivalence of the Customer Contact Styles Questionnaire (CCSQ7.2) for proctored and unproctored administration groups . [Internet] [Masters thesis]. University of Pretoria; 2012. [cited 2021 Jan 17]. Available from: http://upetd.up.ac.za/thesis/available/etd-02212012-120655/.

Council of Science Editors:

author] [. The construct equivalence of the Customer Contact Styles Questionnaire (CCSQ7.2) for proctored and unproctored administration groups . [Masters Thesis]. University of Pretoria; 2012. Available from: http://upetd.up.ac.za/thesis/available/etd-02212012-120655/

University of Dundee

30. Kerr, Alastair. Photoallergic contact dermatitis in Europe.

Degree: Thesis (M.D.), 2012, University of Dundee

URL: https://discovery.dundee.ac.uk/en/studentTheses/8202b022-08c8-4714-b85f-e231e474f8b8 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578889

► Photoallergic contact dermatitis (PACD) is a clinical problem that has often been poorly understood and neglected by dermatologists over recent years. This can be partly… (more)

▼ Photoallergic contact dermatitis (PACD) is a clinical problem that has often been poorly understood and neglected by dermatologists over recent years. This can be partly attributed to its investigation by photopatch testing (PPT) falling between the expertise of photobiologists and contact dermatitis clinicians. One result of this situation was that no European Baseline PPT series had been agreed on. To redress this, the European multi centre photopatch test study (EMCPPTS) was conceived to provide up to date information on which photoallergens are of greatest clinical relevance. Its conduct and results form the core research project of this thesis. To enable the EMCPPTS to proceed and its results to be viewed in a wider context, the other Chapters of this thesis explore important related aspects of PACD and PPT in Europe. The introduction examines the nature of PACD and PPT and reviews current photoallergens. Then, the investigation of the two photoallergens carprofen and chlorproethazine by PPT is recounted. These studies highlight deficiencies within the current European regulatory system for preventing photoallergens from reaching the marketplace, as well as providing templates for the investigation of new photoallergens in the human environment. This is followed by a pilot PPT study which provides new information on the optimum non-irritating concentration of the 19 ultraviolet sunscreen absorbers to be used in the EMCPPTS. The issue of attempting to determine the photoallergenic potential of the EMCPPTS agents with respect to exposure patterns is addressed by conducting a sunscreen survey in the UK. The EMCPPTS itself is then detailed, as well as the difficulties that can be encountered when conducting a large clinical study of this nature. The results from the EMCPPTS and other presented studies were shown to be of importance in deciding upon a new European Baseline PPT series. The process involved in deciding this series, as well as its content are described before overall conclusions and possible future studies in the domain of PACD and PPT are discussed.

Subjects/Keywords: 616.5; Photoallergic contact dermatitis; Sunscreens; Topical NSAIDs; Photopatch testing

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kerr, A. (2012). Photoallergic contact dermatitis in Europe. (Doctoral Dissertation). University of Dundee. Retrieved from https://discovery.dundee.ac.uk/en/studentTheses/8202b022-08c8-4714-b85f-e231e474f8b8 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578889

Chicago Manual of Style (16^th Edition):

Kerr, Alastair. “Photoallergic contact dermatitis in Europe.” 2012. Doctoral Dissertation, University of Dundee. Accessed January 17, 2021. https://discovery.dundee.ac.uk/en/studentTheses/8202b022-08c8-4714-b85f-e231e474f8b8 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578889.

MLA Handbook (7^th Edition):

Kerr, Alastair. “Photoallergic contact dermatitis in Europe.” 2012. Web. 17 Jan 2021.

Vancouver:

Kerr A. Photoallergic contact dermatitis in Europe. [Internet] [Doctoral dissertation]. University of Dundee; 2012. [cited 2021 Jan 17]. Available from: https://discovery.dundee.ac.uk/en/studentTheses/8202b022-08c8-4714-b85f-e231e474f8b8 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578889.

Council of Science Editors:

Kerr A. Photoallergic contact dermatitis in Europe. [Doctoral Dissertation]. University of Dundee; 2012. Available from: https://discovery.dundee.ac.uk/en/studentTheses/8202b022-08c8-4714-b85f-e231e474f8b8 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578889

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Open Access Theses and Dissertations