Active Contour
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. An optimization approach of dynamic maceration of Centella asiatica to obtain the highest content of four centelloids by response surface methodology
ABSTRACT Centella asiatica (L.) Urb., Apiaceae, is commonly used as food, food supplement, and medicine. Development of the extraction process to obtain the high extent of the active compound is necessary. So, the response surface methodology was used in this work to optimize the dynamic maceration of C. asiatica to obtain the highest content of the four cen
Rev. bras. farmacogn.. Publicado em: 27/05/2019
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2. Uma nova abordagem para a medição da diluição de soldagem, baseada nos pontos de inflexão de um Contorno Ativo
RESUMO Em diversas aplicações, com ênfase nos processos de soldagem dissimilar, a diluição, em conjunto com outros fatores, pode afetar as propriedades mecânicas dos materiais soldados, sendo assim, capaz de gerar falhas durante as condições normais de serviço. Deste modo, a taxa de diluição geralmente é calculada a partir da análise de imagens
Matéria (Rio J.). Publicado em: 20/05/2019
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3. Robust pulmonary segmentation for chest radiography, combining enhancement, adaptive morphology and innovative active contours
Abstract Introduction Statistical data reveal that approximately 140 million radiological exams are performed annually in Brazil. These exams are designed to detect and to analyze fractures, caused by different types of trauma; as well as, to diagnose pathologies such as pulmonary diseases. For better visualization of those lesions or abnormalities, method
Res. Biomed. Eng.. Publicado em: 13/09/2018
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4. Lung disease detection using feature extraction and extreme learning machine
INTRODUCTION: The World Health Organization estimates that by 2030 the Chronic Obstructive Pulmonary Disease (COPD) will be the third leading cause of death worldwide. Computerized Tomography (CT) images of lungs comprise a number of structures that are relevant for pulmonary disease diagnosis and analysis. METHODS: In this paper, we employ the Adaptive Cris
Rev. Bras. Eng. Bioméd.. Publicado em: 2014-09
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5. Modelagem molecular de uma série de compostos inibidores da enzima integrase do vírus HIV-1 / Molecular modelling for a series of integrase HIV-I inhibitors
An essential step in the HIV life cycle is integration of the viral DNA into the host chromosome. This step is catalyzed by a 32-kDa viral enzyme HIV integrase (IN). HIV-1 IN is an important and validated target, and the drugs that selectively inhibit this enzyme, when used in combination with reverse transcriptase (RT) and protease (PR) inhibitors, are beli
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/07/2011
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6. Mortars Properties Obtained by Partial Replacement of Portland Cement by Ground Waste Calcined Clay Bricks / Propriedades de argamassas obtidas pela substituição parcial de cimento Portland por rejeitos particulados de tijolos
This work describes the results of an investigation on the possible applications of ground waste calcined clay bricks (WCB) for use as an active partial replacement for Portland cement in mortars. The investigation has been carried out using a full factorial design for experimental design. For the study, the physical and mechanical properties along their dur
Publicado em: 2010
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7. Métodos para quantificação da artéria carótida em imagens de ultrassom modo-B e Doppler. / Methods for quantification of the carotid artery in B-mode and Doppler ultrasound images.
No campo da medicina diagnóstica através de imagens, o baixo custo e a característica não-invasiva da ultrassonografia modo-B favoreceram as pesquisas que analisam a relação entre a espessura íntima-média (EIM) da artéria carótida e o desenvolvimento de doenças cardiovasculares. Outra técnica de ultrassonografia, baseada no efeito Doppler, també
Publicado em: 2009
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8. Efeitos da radiação ultravioleta-b sobre a morfisiologia de kappaphycus alvarezii (DOTY) doty ex P. Silva (gigartinales) variantes pigmentares verde e vermelha
The effects of ultraviolet radiation in the biological relevant wavebands of UV-A (315#400 nm) and UV-B (280#315 nm) on algae have become an important issue as a man-made depletion of the protecting ozone layer has been reported. However, experimental designs to investigate this issue are manifold and the target organisms are extremely diverse. Data are incl
Publicado em: 2009
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9. The attenuation of concentrations model: a new method for assessing mercury mobility in sediments
In this work we propose a new approach for the determination of the mobility of mercury in sediments based on spatial distribution of concentrations. We chose the Tainheiros Cove, located in the Todos os Santos Bay, Brazil, as the study area, for it has a history of mercury contamination due to a chloro-alkali plant that was active during 12 years. Twenty-si
Química Nova. Publicado em: 2004-02
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10. Chacacterization, modeling and computacional simulation on dynamics of neural cells connections and growth / Caracterização, modelagem e simulação matemático-computacional da dinâmica do crescimento e conexões de células neurais
In this thesis we report the investigation and simulation of dynamic models of neural growing, and their characterization using shape features, considering the form function relationship and neuromorphometry. The thesis begins by presenting an overview about neuroscience, neural cell biology and the biological factors that affects the neuron form development
Publicado em: 2003
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11. Critical evaluation of results obtained in the management of cutaneous cervicofacial hemangiomas. / Estudo crítico dos resultados obtidos no tratamento dos hemangiomas cutâneos cervicofaciais
Hemangioma is the most common vascular tumor and the most frequent benign neoplasm of infancy. The potential for spontaneous involution makes active treatment of non-life-threatening lesions controversial, in opposition to specific situation, as visual axis obstruction or airway compromise, which need immediate approach. The purposes of the present study wer
Publicado em: 2003
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12. Efeito inibidor da finasterida sobre a enzima 5-alfa-redutase na prostata de gerbilos adultos (Meriones unguiculatus)
Prostatic deve1opment and differentiatíon are induced by androgens acting via mesenchymal-epithelial interactions, and during adult life the gland is maintained functionally active by reciprocal homeostatic stromal-epithelial interactions. Hormonal alterations, usually associated with the physical aspects of aging, leads to disruptions of this homeostatic i
Publicado em: 2003