Made available in DSpace on 2014-10-09T12:30:15Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:06:28Z (GMT). No. of bitstreams: 1 00486.pdf: 1035700 bytes, checksum: 1673cd5fd2c3650224ca9a6df2b4fcdb (MD5) / Dissertacao (Mestrado) / IEA/D / Instituto de Energia Atomica - IEA

Foram conduzidos quatro experimentos com a cultivar 'Carioca' do feijoeiro (Phaseolus vulgaris), objetivando a possibilidade de implementação de um sistema de manejo integrado da ferrugem e mancha angular do feijoeiro após a intervenção com os fungicidas oxycarboxin (Hokko Plantvax 750 - 700 gramas/ha) e trifenil hidróxido de estanho (Mertin â - 660 ml/ha), respectivamente, aplicados em diferentes épocas. Foi realizada a quantificação de danos nesses patossistemas, verificando por meio de regressões lineares e não lineares as possíveis relações existentes entre as variáveis integrais AUDPC (área sob a curva de progresso de doença)¸ HAD (duração da área foliar sadia) e HAA (absorção da área foliar sadia) e suas correspondentes HLAI (índice de área foliar sadio) e HRI (absorção da área foliar por unidade de tempo) com a produção (gramas/planta). Os melhores resultados foram obtidos com as variáveis HAD e HAA, com coeficientes de determinação (R 2 ) variáveis entre 0,19 e 0,56 para HAD e 0,23 e 0,49 para HAA. Quando as variáveis HLAI e HRI foram relacionadas com a produção, os coeficientes de determinação variaram entre 0,24 e 0,57 para HLAI e 0,28 e 0,56 para HRI. A partir das avaliações semanais de HLAI e HRI foram realizadas regressões lineares entre estas variáveis e a produção (gramas/planta). Os coeficientes angulares foram relacionados com os estádios de desenvolvimento observando-se a estabilização das curvas entre os estádios R5-R8 para o patossistema ferrugem - feijão e entre os estádios V4-R8 para o patossistema mancha angular - feijão para HLAI e HRI. Nesses experimentos foram também realizadas avaliações do Índice de Área Foliar (LAI) utilizando-se medições diretas (avaliações manuais) e indiretas com ceptômetro. As medições obtidas com o este equipamento apresentaram sensibilidade suficiente para captar as variações no índice de área foliar sadio e portanto podem ser usadas em sistemas de manejo integrado da ferrugem e da mancha angular do feijoeiro. / Four trials were carried out on dry beans (Phaseolus vulgaris), variety 'Carioca' with goal to verify the possibility of implementation of an integrated management system for rust and angular spot after the application with of oxycarboxin (Hokko Plantvax 750 - 700 g/ha) and trifenil stannic hydroxide (Mertin â - 660 ml/ha) fungicides, applied in different timings. The damage quantification in these pathosystems were done analyzing the possible existing relation among the integral variables AUPDC (Area Under Disease Progress Curve), HAD (Healthy Area Duration) and HAA (Healthy Area Absorption) and its correspondents HLAI (Healthy Leaf Area Index) and HRI (Healthy Radiation Intercept) with yield (grams/plant) through linear and non linear regression. The best results were obtained using the variables HAD and HAA with the determination coefficients (R 2 ) from 0.19 to 0.56 for HAD and 0.23 to 0.49 for HAA. When HLAI and HRI were related with yield, the determination coefficient ranged from 0.24 and 0.57 for HLAI and 0.28 to 0.56 for HRI. From weekly assessments of HLAI and HRI, linear regression analysis were done between those variables and yield (grams/plant). The angular coefficient were related with the different crop stages and the stability of curves was observed between R5-R8 stages for rust - dry bean pathosystem and between V4-V8 stages for angular spot – dry bean pathosystem when HLAI and HRI were analyzed. In these experiments, Leaf Area Indice (LAI) was also assessed with direct (manual) and indirect measures with a ceptometer. The measures obtained using this set provided necessary sensibility to catch HLAI variation and, therefore, may be used in an integrated management system of rust and angular spot in dry beans.

Objetiva-se discutir e explorar as consequências da conservação do momento angular em situações físicas que apresentem dissipação de energia. Frequentemente, sistemas mecânicos dissipativos são omitidos nas formulações matemáticas da mecânica clássica. No entanto, a conservação da energia mecânica é uma idealização drasticamente incompatível, a longos períodos de tempo, com a maioria das situações reais. Apesar de parecer controversa, esta abordagem é compreensível desde que é incluída na dissipação toda a complexidade dos sistemas mecânicos, os quais não podemos modelar completamente. Espera-se assim que os resultados obtidos sejam parcialmente comprovados em experimentos, sendo que a discrepância é atribuída à parte desconhecida do fenômeno, que muitas vezes é considerada irrelevante para fins práticos. Devido à mencionada complexidade de fenômenos dissipativos, a postura adotada nesta dissertação foi analisar específicos exemplos, de natureza distinta, simplificados, que apresentem as duas propriedades em questão. Concentrou-se especialmente no problema de dissipação de energia em corpos deformáveis na ausência de estímulos externos. / The goal of this work is to study physical systems where angular momentum is a conserved quantity while energy is dissipated. It is a common practice among people working on classical mechanics to neglect energy dissipation. While this hypothesis leads to beautiful mathematical theories, it is strongly violated by the majority of real world systems. The physical complexity of the many ways in which energy is dissipated turns the mathematical modelling of dissipative forces troublesome. There is essentially no general mathematical model for dissipative forces in good agreement with a wide range of experiments. This is in contrast to the very few accepted conservative force models: gravity, elasticity and magneto-electricity. The dissipative force model usually varies among the various physical situations. So, in this work several systems where energy is dissipated while angular momentum is conserved will be considered. The main example will be the motion of a deformable body free from external forces and torques.

In this qualitative practice-based research meanings of angularity in Africanist aesthetics and ”angular music” are studied. The insights of the studies are processed in several bodily practices and ”being angular” develops into a dance didactic tool for jazz dance. The bodily practices through which being angular is shaped are the following: creative writing, dance improvisations, and the development of a dance art pedagogy practice for jazz dance.  The aim of the study is to understand the meaning of being angular in a jazz dance context, to give a perspective on jazz dance teaching and contribute to the deepening of dance skills in jazz dance. In the study, I collaborate with co-researchers who were students from the Norwegian culture school. The research questions are: With what approaches can ”being angular” be achieved to be meaningful in jazz dance teaching? How can "being angular" as a dance didactic tool contribute to deepen dance skills and artistic development in jazz dance?  The knowledge generation takes place through the practical exploration and the methodological process is derived from Tone Pernille Østern's theoretical understanding of researching with art. ”Å forske med kunsten” (To research with art) is an umbrella term forpractice-led and artistic research.  Being angular develops into a tool that connects dance didactic methods with dance artistic methods in jazz dance teaching. Being angular contributes to the act of collective learning and gives a broadened perspective on jazz dance teaching. / I denna kvalitativa praktikbaserade forskning studeras betydelser av angularity i afrikanistisk estetik och ”angular music”. Insikterna av studierna bearbetas i flera kroppsliga praktiker och formar paraplybegreppet ”vara angulär”. De kroppsliga praktikerna som vara angulär formas genom är följande: kreativt skrivande, dansimprovisationer och utvecklingen av en danskonstpedagogisk praktik för jazzdans.  Studiens syften är att förstå innebörder i att vara angulär i en jazzdanskontext, ge perspektiv på jazzdansundervisningen och bidra till att danskunskaper i jazzdans kan fördjupas.  Undersökningen är gjord i ett samarbete med medforskare, som var elever från den norska kulturskolan. Undersökningens frågeställningar är: Med vilka tillvägagångssätt kan att ”vara angulär” uppnås för att få betydelse i jazzdansundervisning? Hur kan att ”vara angulär” som dansdidaktiskt verktyg bidra till fördjupade danskunskaper och konstnärlig utveckling i jazzdans?  Kunskapsgenereringen pågår i det praktiska utforskandet och jag har valt Tone Pernille Østerns teoretiska förståelse om att forska med konsten som metodologisk process. ”Å forske med kunsten” är ett paraplybegrepp för praktikledd och konstnärlig forskning. Vara angulär utvecklas till ett verktyg som kopplar samman dansdidaktiska metoder med danskonstnärliga metoder i jazzdansundervisning. Vara angulär bidrar till kollektivt lärande och ger ett bredare perspektiv på jazzdansundervisning.

In this project assignment, the ability to create RSS feeds for Smartsign's new web application, New Publisher, has been developed. The current version of Publisher has been in its current form for a long time and is beginning to feel somewhat outdated, motivating the need for an update. The development work has been carried out in the JavaScript framework Angular, in combination with SCSS and Angular-Materials. The purpose of the work has been to create this part of the new web application, which upon implementation will provide a new, simpler, and more visually appealing interface for users who want to distribute messages to connected signage screens in the form of RSS feeds, here in New Publisher called feeds. The work has resulted in a fully functional part of the application which is ready to be put into production / I detta projektarbete har RSS-flöden för företaget Smartsigns nya webbapplikation Nya Publisher utvecklats. Publisher används för att ge företagets kunder möjlighet att leverera budskap till signage-skärmar. Den nuvarande versionen av Publisher har funnits i sin nuvarande form en lång tid och börjar nu kännas något omodern, vilket motiverar behovet av en uppdatering. Utvecklingsarbetet har genomförs i JavaScript-ramverket Angular i kombination med SCSS och Angular-Materials. Syftet med arbetet har varit att skapa denna del i den nya webbapplikationen vilket vid implementering kommer att ge ett nytt, enklare och mer visuellt tilltalande gränssnitt för användare som vill nå ut med budskap till anslutna signage-skärmar i form av RSS-flöden vilket i Publisher kallas för feeds. Arbetet har resulterat i en fullt fungerande del av applikationen vilken i sig är redo att sättas i produktion

Submitted by Biblioteca do Instituto de Física (bif@ndc.uff.br) on 2017-03-27T20:46:23Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação.pdf: 3142879 bytes, checksum: 86acc16510c6eb3acd7d645922238d47 (MD5) / Made available in DSpace on 2017-03-27T20:46:23Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação.pdf: 3142879 bytes, checksum: 86acc16510c6eb3acd7d645922238d47 (MD5) / Trabalhos anteriores já mostraram o dobramento do momento angular orbital de feixes após a geração de segundo harmônico em meios não lineares. Nesse trabalho pretendemos usar a polarização como parâmetro auxiliar para poder incidir em um cristal não linear dois feixes colineares com momentos angulares orbitais diferentes e obter na geração de seu segundo harmônico a soma de seus momentos angulares orbitais e veri car este resultado experimentalmente. / Previous work have already shown the orbital angular momentum doubling after second harmonic generation in non-linear media. In this work we intend to use the polarization as an auxiliary parameter to focus in a non-linear crystal two colinear beams with different orbital angular momentum and obtain in its second harmonic generation the sum of their orbital angular momentum and to verify it exeperimentally.

Call number: LD2668 .T4 1958 T75

Call number: LD2668 .T4 1958 W45

Call number: LD2668 .T4 1964 D75 / Master of Science

Call number: LD2668 .T4 1985 S57 / Master of Science