Coherent Control
Mostrando 1-12 de 70 artigos, teses e dissertações.
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1. Influência do Ciclo Térmico de Soldagem no Crescimento de Grão, nas Transformações Microestruturais e na Formação de MA na GGZAC de aço TMCP
Resumo A soldagem com elevado aporte térmico é uma das alternativas adotadas pelos estaleiros e fabricantes de torres eólicas para aumento da produtividade. No entanto, os ciclos térmicos gerados no processo podem provocar transformações microestruturais prejudiciais à tenacidade na zona afetada pelo calor, especialmente na região de grãos grosseiro
Soldag. insp.. Publicado em: 09/05/2019
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2. Mejora en la calidad de imágenes ultrasónicas aplicando métodos de composición espacial y empleando sistemas de Phased Array
ABSTRACT The Phased Array Ultrasonic Technique (PAUT) has become a widely used imaging tool for the Nondestructive Testing in the industrial field. The PAUT allows making deflections and focusing the ultrasound beam at different depths within the material, through an electronic control of each one of the N elements that make up the array transducer. Thus, se
Matéria (Rio J.). Publicado em: 19/07/2018
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3. Comparative analysis of different doses of coherent light (laser) and non-coherent light (light-emitting diode) on cellular necrosis and apoptosis: a study in vitro
Introduction Threshold doses of electromagnetic radiation can initiate necrosis and apoptosis in cells. The purpose of this study was to evaluate cellular apoptosis and necrosis immediately (t0) and 24 hours (t24) after irradiation with different doses of coherent light (laser) or non-coherent light (LED). Methods CHO-K1 lineage cells were irradiated with
Res. Biomed. Eng.. Publicado em: 2016-12
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4. Description of microsporidia in simulids: molecular and morphological characterization of microsporidia in the larvae of Simulium pertinax Kollar (Diptera: Simuliidae)
IntroductionMicrosporidia constitute the most common black fly pathogens, although the species' diversity, seasonal occurrence and transmission mechanisms remain poorly understood. Infections by this agent are often chronic and non-lethal, but they can cause reduced fecundity and decreased longevity. The objective of this study was to identify microsporidia
Rev. Soc. Bras. Med. Trop.. Publicado em: 2014-10
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5. Controle coerente das bandas de emissão do ZnO através de algoritmo genético / Coherent control of the emission bands of ZnO using genetic algorithms
Neste trabalho, investigamos o controle coerente das bandas de emissão, excitadas via absorção multifotônica, em um cristal de óxido de Zinco (ZnO) através das formatação de pulsos laser ultracurtos (790 nm, 30 fs, 80 MHz e 5 nJ). O ZnO vem se mostrado um possível candidato a dispositivos fotônicos devido a sua grande energia de ligação de éxcit
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/02/2012
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6. O planejamento econômico no Brasil: considerações críticas
In the past thirty years, a series of plans have been developed by successive Brazilian governments in a continuing effort to maximize the nation's resources for economic and social growth. This planning history has been quantitatively rich but qualitatively poor. The disjunction has stimulated Professor Mello e Souza to address himself to the problem of nat
Rev. Adm. Pública. Publicado em: 2012-12
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7. Predição e identificação de danos internos em batatas por meio do biospeckle laser / Prediction and identification of potatoes in internal damagethrough the laser biospeckle
Food damages due to mechanical impacts at post harvest different phases are one of the biggest issues faced by food industry. In potatoes, productivity decrease due to impacts and physical damages can get to 40% during processing, storage, transportation and commercialization phases. Intern injuries, or bruising, are one of the biggest factors losses at pota
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/06/2011
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8. The small company and its organizational environment: construction of a map of managerspractices of an information technology company on the basis of resources dependence theory and institutional theory / A pequena empresa e seu ambiente organizacional: construção de um mapa das práticas dos dirigentes de uma empresa de tecnologia da informação com base na teoria da dependência de recursos e na teoria institucional
The main objective of this research is to construct a map, supported by "Environmental Theories", of the practices of small company managers related to the organizational environment. The specific objectives are the comprehension of the specificities of the information technology small company, how the manager understands the organizational environment and w
Publicado em: 2010
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9. Análise da atenção básica à saúde do idoso na estratégia saúde da família / Analysis of primary care health of elderly in family health strategy
The study focused on the health care of the elderly, more specifically in Family health strategy as a way of thinking about alternatives that allow the reorganization of elderly care to adscritas areas. Processorsthe General was discussing the basic attention actions offered to the elderly in context family health strategy. Search descriptive exploratory in
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/12/2009
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10. Risk factors for Hospital-Acquired Pneumonia in nonventilated adults
Although most recent publications focus on Ventilator-associated Pneumonia, Non-Ventilator-associated Hospital-acquired pneumonia (NVHAP) is still worrisome. We studied risk factors for NVHAP among patients admitted to a small teaching hospital. Sixty-six NVHAP case patients and 66 controls admitted to the hospital from November 2005 through November 2006 we
Brazilian Journal of Infectious Diseases. Publicado em: 2009-08
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11. Coherent control of two-photon absorption process in organic compounds / Controle coerente do processo de absorção de dois fótons em compostos orgânicos
A larga banda espectral, característica de pulsos ultracurtos de luz laser, tem possibilitado o controle coerente da interação da luz com a matéria através da manipulação das componentes espectrais da fase do pulso. Esta nova área de pesquisa tem sido responsável por avanços no entendimento e controle de fenômenos foto-induzidos, especialmente no
Publicado em: 2009
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12. Otimização das colunas de absorção da recuperação de acetona na produção de Filter Tow por meio de estudos fenomenológicos e análise estatística. / Optimization of the absorption columns in the acetone recovery at the Filter Tow production by phenomenological studies and statistical analysis.
Absorption is the key step of the acetone recovery at Filter Tow production, for reducing the acetone emission and improving economics. For this reason it is the subject of this study, including the revision of phenomenological concepts, considering the choice of the best vapor liquid equilibrium model, passing by the improvement of coherent mass balances an
Publicado em: 2009