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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

DIRECTING AUTOBIOGRAPHICAL THEATRE

Taylor, Shanea 29 July 2009 (has links)
This is an exploration of the director's role in autobiographical theatre. The director is in a unique position when storytelling on a personal level is being executed theatrically. I explored this topic over the course of directing three plays, each of which contained a strong personal storytelling element, which broadened my perspective of the director's role. The three plays were Slashtipher Coleman’s The Neon Man and Me, Birth by Karen Brody, and Will Power to Youth Richmond presents: William Shakespeare’s Romeo and Juliet. Traditionally, the director’s role includes a myriad of tasks. These tasks can include and are not limited to creating pictures on stage that reflect the story being told, coaching actors in their craft specific to the production, vocal and movement coaching, viii creating a concept, interpreting and translating the action, and being the intermediary amongst the creative team in reaching the overall artistic vision. However, when the director is presented with personal stories to shape and mold, this role changes; no longer can the director wear a traditional hat and assume that the story will tell itself through a series of pictures, but now the director dons different hats and accesses other skills that more closely reflect those of mentor, spiritual leader, psychologist, teacher, and friend. This thesis is a narrative of the explorative process that one director experienced when staging these three prototypes of autobiographical theatre.
92

Cross-Compatibility of Aerial and Terrestrial Lidar for Quantifying Forest Structure

Franklin W Wagner (7022885) 16 August 2019 (has links)
<p>Forest canopies are a critical component of forest ecosystems as they influence many important functions. Specifically, the structure of forest canopies is a driver of the magnitude and rate of these functions. Therefore, being able to accurately measure canopy structure is crucial to ensure ecological models and forest management plans are as robust and efficient as possible. However, canopies are complex and dynamic entities and thus their structure can be challenging to accurately measure. Here we study the feasibility of using lidar to measure forest canopy structure across large spatial extents by investigating the compatibility of aerial and terrestrial lidar systems. Building on known structure-function relationships measured with terrestrial lidar, we establish grounds for scaling these relationships to the aerial scale. This would enable accurate measures of canopy structural complexity to be acquired at landscape and regional scales without the time and labor requirements of terrestrial data collection. Our results illustrate the potential for measures of canopy height, vegetation area, horizontal cover, and canopy roughness to be upscaled. Furthermore, we highlight the benefit of utilizing multivariate measures of canopy structure, and the capacity of lidar to identify forest structural types. Moving forward, lidar is a tool to be utilized in tandem with other technologies to best understand the spatial and temporal dynamics of forests and the influence of physical ecosystem structure. </p>
93

Caracterização e modelagem dos fenômenos anisotrópicos do colágeno após irradiação com Laser polarizado de emissão vermelha / Caracterization and modelling of collagen anisotropical phenomenons after irradiation with red emission polarized Laser

Silva, Daniela de Fatima Teixeira da 26 March 2007 (has links)
O colágeno é a forma funcional de um oligômero biológico, cujos monômeros são aminoácidos quirais. Tecidos ricos em colágeno são estruturas opticamente anisotrópicas, birrefringentes e não-lineares. O objetivo deste trabalho foi caracterizar o colágeno tipo I não irradiado e após irradiação com laser de He-Ne polarizado, utilizando a microscopia de polarização para investigação da birrefringência, e a geração de segundo harmônico (GSH) para análise da susceptibilidade não-linear. Doze ratos Wistar foram divididos em quatro grupos, de acordo com as idades: 34, 48, 62 e 76 dias. Os grupos receberam, respectivamente, 1; 5; 9 e 13 irradiações de D= 1J/cm2, durante 46s, no tendão de Aquiles que, aleatoriamente, foi escolhido ser o direito ou esquerdo. Os animais foram então sacrificados e os tendões extraídos para a preparação das amostras. Para a microscopia de polarização foram obtidos cortes com 8&mu;m de espessura, e as birrefringências de forma e intrínseca foram avaliadas. Para a GSH foi utilizado um laser de Ti:Safira (150fs) com 76MHz de taxa de repetição, diâmetro do feixe &phi;= 40&mu;m, comprimento de onda central &lambda;= 800nm e &Delta;&lambda;= 10nm e Pp= 110mW. Um polarizador linear foi posicionado no caminho do feixe. Duas objetivas foram utilizadas para focalizar e coletar a radiação incidente e emergente da amostra, respectivamente. Um analisador, também linear, foi introduzido logo após a objetiva coletora. Um filtro absorvedor na faixa infravermelha do espectro eletromagnético, mas transmissor na faixa azul, foi utilizado para garantir que apenas &lambda;= 400nm era medido. A razão, &rho;, entre dois tensores de hiperpolarizabilidade independentes foi estudada. As amostras irradiadas apresentaram maior birrefringência (&Delta;n) e maior susceptibilidade não-linear (&rho;), em comparação com as não irradiadas. Estes resultados indicam que o laser de He-Ne polarizado alinha as fibrilas de colágeno ao longo eixo do tendão. / The collagen is the functional form of a biological oligomer whose monomers are chiral amino acids. Tissues filled up of collagen are anisotropic optically structures, birefringent and nonlinear. The purpose of this study was characterizing nonirradiated and polarized He-Ne laser irradiated type I collagen using polarized light microscopy to investigate the birefringence and the second harmonic generation (SHG) to analyze the nonlinear susceptibility. Twelve Wistar rats were alienated into four groups according to the ages: 34, 48, 62 and 76 days. The groups received, respectively, 1; 5; 9; and 13 irradiations of D= 1J/cm2 during 46s on Achilles tendon, which was chosen randomly as right or left. Thereafter, the animals were sacrificed and the tendons were extracted to prepare the specimens. For polarized light microscopy, eight-&mu;m sections were obtained to evaluate the form and intrinsic birefringences. For SHG, it was used a Ti:Safira (150fs) laser at a repetition rate of 76MHz, beam diameter of &phi;= 40&mu;m, wavelength of &lambda;= 800nm and &Delta;&lambda;= 10nm and Pp= 110mW. The beam passed through a linear polarizer and two microscope objectives were used to focalize and collect the incident and emergent radiation, respectively. A second linear polarizer was placed after of collecting objective. An infrared absorber and blue transmitter filter was used a sure that only &lambda;= 400nm was measured. The ratio, &rho;, between two hyperpolarizability tensors was studied. The irradiated samples presented higher birefringence (&Delta;n) and nonlinear susceptibility (&rho;) when compared to nonirradiated samples. These results indicate that a polarized He-Ne laser aligns the collagen fibrils to the long tendon axis.
94

Caracterização e modelagem dos fenômenos anisotrópicos do colágeno após irradiação com Laser polarizado de emissão vermelha / Caracterization and modelling of collagen anisotropical phenomenons after irradiation with red emission polarized Laser

Daniela de Fatima Teixeira da Silva 26 March 2007 (has links)
O colágeno é a forma funcional de um oligômero biológico, cujos monômeros são aminoácidos quirais. Tecidos ricos em colágeno são estruturas opticamente anisotrópicas, birrefringentes e não-lineares. O objetivo deste trabalho foi caracterizar o colágeno tipo I não irradiado e após irradiação com laser de He-Ne polarizado, utilizando a microscopia de polarização para investigação da birrefringência, e a geração de segundo harmônico (GSH) para análise da susceptibilidade não-linear. Doze ratos Wistar foram divididos em quatro grupos, de acordo com as idades: 34, 48, 62 e 76 dias. Os grupos receberam, respectivamente, 1; 5; 9 e 13 irradiações de D= 1J/cm2, durante 46s, no tendão de Aquiles que, aleatoriamente, foi escolhido ser o direito ou esquerdo. Os animais foram então sacrificados e os tendões extraídos para a preparação das amostras. Para a microscopia de polarização foram obtidos cortes com 8&mu;m de espessura, e as birrefringências de forma e intrínseca foram avaliadas. Para a GSH foi utilizado um laser de Ti:Safira (150fs) com 76MHz de taxa de repetição, diâmetro do feixe &phi;= 40&mu;m, comprimento de onda central &lambda;= 800nm e &Delta;&lambda;= 10nm e Pp= 110mW. Um polarizador linear foi posicionado no caminho do feixe. Duas objetivas foram utilizadas para focalizar e coletar a radiação incidente e emergente da amostra, respectivamente. Um analisador, também linear, foi introduzido logo após a objetiva coletora. Um filtro absorvedor na faixa infravermelha do espectro eletromagnético, mas transmissor na faixa azul, foi utilizado para garantir que apenas &lambda;= 400nm era medido. A razão, &rho;, entre dois tensores de hiperpolarizabilidade independentes foi estudada. As amostras irradiadas apresentaram maior birrefringência (&Delta;n) e maior susceptibilidade não-linear (&rho;), em comparação com as não irradiadas. Estes resultados indicam que o laser de He-Ne polarizado alinha as fibrilas de colágeno ao longo eixo do tendão. / The collagen is the functional form of a biological oligomer whose monomers are chiral amino acids. Tissues filled up of collagen are anisotropic optically structures, birefringent and nonlinear. The purpose of this study was characterizing nonirradiated and polarized He-Ne laser irradiated type I collagen using polarized light microscopy to investigate the birefringence and the second harmonic generation (SHG) to analyze the nonlinear susceptibility. Twelve Wistar rats were alienated into four groups according to the ages: 34, 48, 62 and 76 days. The groups received, respectively, 1; 5; 9; and 13 irradiations of D= 1J/cm2 during 46s on Achilles tendon, which was chosen randomly as right or left. Thereafter, the animals were sacrificed and the tendons were extracted to prepare the specimens. For polarized light microscopy, eight-&mu;m sections were obtained to evaluate the form and intrinsic birefringences. For SHG, it was used a Ti:Safira (150fs) laser at a repetition rate of 76MHz, beam diameter of &phi;= 40&mu;m, wavelength of &lambda;= 800nm and &Delta;&lambda;= 10nm and Pp= 110mW. The beam passed through a linear polarizer and two microscope objectives were used to focalize and collect the incident and emergent radiation, respectively. A second linear polarizer was placed after of collecting objective. An infrared absorber and blue transmitter filter was used a sure that only &lambda;= 400nm was measured. The ratio, &rho;, between two hyperpolarizability tensors was studied. The irradiated samples presented higher birefringence (&Delta;n) and nonlinear susceptibility (&rho;) when compared to nonirradiated samples. These results indicate that a polarized He-Ne laser aligns the collagen fibrils to the long tendon axis.
95

Development of A Cryogenic Drift Cell Spectrometer and Methods for Improving the Analytical Figures of Merit for Ion Mobility-Mass Spectrometry Analysis

May, Jody C. 2009 August 1900 (has links)
A cryogenic (325-80 K) ion mobility-mass spectrometer was designed and constructed in order to improve the analytical figures-of-merit for the chemical analysis of small mass analytes using ion mobility-mass spectrometry. The instrument incorporates an electron ionization source, a quadrupole mass spectrometer, a uniform field drift cell spectrometer encased in a cryogenic envelope, and an orthogonal geometry time-of-flight mass spectrometer. The analytical benefits of low temperature ion mobility are discussed in terms of enhanced separation ability, ion selectivity and sensitivity. The distinction between resolving power and resolution for ion mobility is also discussed. Detailed experimental designs and rationales are provided for each instrument component. Tuning and calibration data and methods are also provided for the technique. Proof-of-concept experiments for an array of analytes including rare gases (argon, krypton, xenon), hydrocarbons (acetone, ethylene glycol, methanol), and halides (carbon tetrachloride) are provided in order to demonstrate the advantages and limitations of the instrument for obtaining analytically useful information. Trendline partitioning of small analyte ions based on chemical composition is demonstrated as a novel chemical analysis method. The utility of mobility-mass analysis for mass selected ions is also demonstrated, particularly for probing the ion chemistry which occurs in the drift tube for small mass ions. As a final demonstration of the separation abilities of the instrument, the electronic states of chromium and titanium (ground and excited) are separated with low temperature. The transition metal electronic state separations demonstrated here are at the highest resolution ever obtained for ion mobility methods. The electronic conformational mass isomers of methanol (conventional and distonic) are also partially separated at low temperature. Various drift gases (helium, neon, and argon) are explored for the methanol system in order to probe stronger ion-neutral interaction potentials and effectuate higher resolution separations of the two isomeric ions. Finally, two versatile ion source designs and a method for axially focusing ions at low pressure (1-10 torr) using electrostatic fields is presented along with some preliminary work on the ion sources.
96

Decay studies of neutron-rich nuclei

Reed, Alan Thomas January 1999 (has links)
No description available.
97

Desenvolvimento de uma metodologia baseada no modelo de duas-regiões e em técnicas de análise de ruído microscópico para a medida absoluta dos parâmetros cinéticos Betasub(eff), Lambda e Betasub(eff/Lambda do reator IPEN/MB-01

KURAMOTO, RENATO Y.R. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:53:07Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:59:04Z (GMT). No. of bitstreams: 0 / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Tese (Doutoramento) / IPEN/T / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP / FAPESP:03/01261-0
98

Qualidade de sementes de soja e incidência de Sclerotinia sclerotiorum (lib) de Bary em função do beneficiamento e armazenamento / Quality of soybean seeds and incidence of Sclerotinia sclerotiorum (lib) de Bary as a function of processing and storage

Teles, Héria de Freitas 29 June 2012 (has links)
Submitted by JÚLIO HEBER SILVA (julioheber@yahoo.com.br) on 2018-08-23T18:47:59Z No. of bitstreams: 2 Tese - Héria de Freitas Teles - 2012.pdf: 1742099 bytes, checksum: c17b10bd83f906fe0f498b63f9478d7c (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-08-24T11:59:34Z (GMT) No. of bitstreams: 2 Tese - Héria de Freitas Teles - 2012.pdf: 1742099 bytes, checksum: c17b10bd83f906fe0f498b63f9478d7c (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2018-08-24T11:59:34Z (GMT). No. of bitstreams: 2 Tese - Héria de Freitas Teles - 2012.pdf: 1742099 bytes, checksum: c17b10bd83f906fe0f498b63f9478d7c (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2012-06-29 / Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq / Soybean (Glycine max L. Merrill) is considered the worldwide leader in oilseed production and consumption, and currently the main source of vegetable protein available. In the field, the crop is infected by a large number of diseases. Among the fungal diseases, the white mold, caused by Sclerotinia sclerotiorum (Lib) de Bary, has emerged as one of the most serious, affecting the quality of seed, which can also be influenced by processing and storage. The pathogen survives in soil through resistance structures (sclerotia) and can attack more than 400 host species. The objective of this study was to evaluate the physical and physiological quality and S. sclerotiorum incidence of soybean seeds during processing and six months after in cold and dry storage and environment conditions. Seeds from eight cultivars, coming from production fields, naturally infested with S. sclerotiorum, located in Vianópolis, Silvânia, Luziânia and Orizona in the State of Goiás, in the seasons 2009/2010 and 2010/2011 were studied. Samples were collected at each stage of processing: in the hopper (reception), after pre-cleaning, discard one (precleaning), after cleaning, after the sieve classifiers (three sieve sizes), after the spiral (three sieve sizes), after gravity table (three sizes of sieve) and final disposal, totalizing 14 samples. The following analysis were done: moisture content, physical purity, germination and tetrazolium test, and tests for S. sclerotiorum detection in rolled paper and Neon method. PCA analysis was performed and Pearson correlations study between the averages of the variables in processing stages for each cultivar. Processing improves physical and physiological quality of soybean seeds, which is efficient for S. sclerotiorum control, eliminating the sclerotia associated to the seeds and reducing the amount of inoculum that could return to the planting area. Physical purity, germination, viability and vigor are positively correlated together and negatively with the mass of sclerotia. Processing also reduces significantly the inoculum potential in the mycelial form of S. sclerotiorum in the seeds. Storage does not influence the incidence of S. sclerotiorum in mycelial form in seeds, which can increase or not during this period, regardless the storage conditions, in a cold and dry storage or in environment condition. / A soja (Glycine max L. Merrill) é considerada a oleaginosa líder em produção e consumo em todo o mundo, sendo, atualmente, a principal fonte de proteína vegetal disponível. Em campo, a cultura é infectada por grande número de doenças. Entre as doenças fúngicas, o mofo-branco, causado por Sclerotinia sclerotiorum (Lib) de Bary, tem se destacado como uma das mais graves, afetando a qualidade das sementes, a qual também pode ser influenciada pelo beneficiamento e armazenamento. O patógeno sobrevive no solo por meio de estruturas de resistência (escleródios) e pode atacar mais de 400 espécies hospedeiras. O objetivo deste trabalho foi avaliar a qualidade física e fisiológica e a incidência de S. sclerotiorum em sementes de soja durante o processo de beneficiamento e após seis meses de armazenamento em câmara fria e seca e em condição ambiente. Trabalhou-se com sementes de oito cultivares, provenientes de campos de produção naturalmente infestados por S. sclerotiorum, situados em Vianópolis, Silvânia, Luziânia e Orizona, no Estado de Goiás, safras 2009/2010 e 2010/2011. As amostras foram coletadas em cada etapa do beneficiamento: na moega (recepção), após a pré-limpeza, no descarte um (da pré-limpeza), após a limpeza, após os classificadores de peneira (três tamanhos de peneira), após o espiral (três tamanhos de peneira), após a mesa de gravidade (três tamanhos de peneira) e no descarte final da UBS, totalizando 14 amostras. Foram realizadas análises de teor de umidade, pureza física, testes de germinação e de tetrazólio, e os testes para a detecção de S. sclerotiorum em rolo de papel e método neon. Foi realizada análise de PCA e estudo das correlações de Pearson entre as médias das variáveis das etapas de beneficiamento, para cada cultivar. Verificou-se que o beneficiamento aprimora as qualidades físicas e fisiológicas das sementes de soja, sendo uma ferramenta útil para o controle de S. sclerotiorum, já que elimina os escleródios associados às sementes, e reduz a quantidade de inóculo inicial no campo. Pureza física, germinação, viabilidade e vigor estão correlacionadas positivamente entre si, e negativamente com a massa de escleródios. O beneficiamento também reduz significativamente o potencial de inóculo na forma micelial de S. sclerotiorum nas sementes. O armazenamento não influencia a incidência de S. sclerotiorum na forma micelial nas sementes, a qual pode aumentar ou não durante este período, independente das condições de armazenamento, seja em câmara fria e seca ou em condição ambiente.
99

Desenvolvimento de uma metodologia baseada no modelo de duas-regiões e em técnicas de análise de ruído microscópico para a medida absoluta dos parâmetros cinéticos Betasub(eff), Lambda e Betasub(eff/Lambda do reator IPEN/MB-01

KURAMOTO, RENATO Y.R. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:53:07Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:59:04Z (GMT). No. of bitstreams: 0 / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Uma nova metodologia para a medida absoluta da fração efetiva de nêutrons atrasados &beta;eff, baseada em técnicas de análise de ruído microscópico e no modelo de Duas- Regiões, foi desenvolvida no reator IPEN/MB-01. Diferentemente das demais técnicas, tais como o Método de Bennet Modificado, o Método do Número de Nelson e o Método da fonte de 252Cf, a principal vantagem da metodologia proposta é a obtenção de &beta;eff de um modo puramente experimental, sem a necessidade de quaisquer outros parâmetros, sejam estes calculados ou provenientes de outros experimentos. Com a finalidade de validar este novo método, uma série de experimentos Rossi-&alpha; e Feynman-&alpha; foram realizados no reator IPEN/MB-01. De acordo com a metodologia proposta, &beta;eff foi estimado com uma incerteza de 0.67%, a qual atende aos requisitos de precisão almejados. Além disso, o tempo de geração de nêutrons prontos , dentre outros parâmetros, também foi obtido experimentalmente via esta metodologia. Em geral, os parâmetros medidos estão em acordo com resultados provenientes de experimentos de análise de ruído macroscópico. Nas comparações teoria-experimento, os valores de &beta;eff medidos neste trabalho mostram que a biblioteca JENDL3.3 apresenta a melhor performance (dentro de 1%). Esta concordância justifica a redução no yield de fissão do 235U proposta por Sakurai e Okajima. / Tese (Doutoramento) / IPEN/T / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP / FAPESP:03/01261-0
100

Detektor obličejů pro platformu Android / Face Detector For Android Platform

Slavík, Roman January 2011 (has links)
This master's thesis deals with face detection on mobile phones with Android OS. The introduction describes some algorithms used for pattern detection from image, as well as various techniques of features extracting. After that Android platform development specifics, including basic description of development tools, are described. Architecture of SIMD is introduced in next part of this work. After acquiring basic knowleage analysis and implementation of final app are descrited. Performance tests are conducted whose results are summarized in the conclusion.

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