First Order Phase Transition
Mostrando 1-12 de 69 artigos, teses e dissertações.
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1. Transition from open partial nephrectomy directly to robotic surgery: experience of a single surgeon to achieve “TRIFECTA”
ABSTRACT Introduction: Recent data suggest that robotic platform has become the most accessible minimal invasive surgery even for surgeons without previous training in laparoscopy. Laparoscopic partial nephrectomy (LPN) is a well-stablished procedure, however, with high level of complexity and long learning curve that limit its use. Objective: To describe
Int. braz j urol.. Publicado em: 2020-10
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2. Crystallization of Anatase TiO2 in Niobium Potassium Phosphate Glasses
In this work, the glass forming ability was studied in potassium phosphate glasses with increasing amounts of TiO2 in order to obtain a glass-ceramic with photocatalytic properties. The first studied series has been the binary system (100-x) KPO3-xTiO2. Homogeneous and transparent glasses could be obtained with x varying from 10 to 30 mole%. Since the photoc
Mat. Res.. Publicado em: 16/02/2017
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3. Modelagem hidrológica da bacia hidrográfica do rio Bengalas, Nova Friburgo, RJ, utilizando o potencial de geotecnologias na definição de áreas de risco de inundação.
This research focuses on the hydrological study using the potential of geotechnology into runoff modeling of the Bengalas Basin, whose main river, with same name, crosses the city of Nova Friburgo - RJ, in a south-north orientation. This city, one of the most important in "Região Serrana", suffers often with floods and landslides, which, historical data and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/10/2011
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4. The Brazilian Internet Steering Committee (CGI.br): A Socially Molded Evolution of the National Information System / Comitê gestor da internet no Brasil (CGI.br): uma evolução do sistema de informação nacional moldada socialmente
Internet is an important phenomenon for the development of information society in many aspects: social, economic, cultural and political apart of its Information and Communication Technology dimension. This study aims to add up some knowledge on the existing Internet studies, through the analysis of actors, agents and structures who have built the network wh
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/08/2011
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5. Zeros de Fisher e aspectos críticos do modelo de Ising dipolar / Fisher\ s zeros and critical aspects of the dipolar Ising model
We study the critical behavior of the dipolar Ising model on two-dimensional regular lattices. This model presents a phenomenologically rich scenario due to the effect of frustration caused by the competition between the pure Ising interaction and the dipolar one. To study the criticality of this model we apply finite size scaling relations for the partition
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/06/2011
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6. Transições de fase hádron-quark em estrelas de nêutrons
Recent advances on the field of high energy physics have enabled the study of matter under extreme conditions and, in this context, new states of matter are being discovered and speculated upon. Among these hypothetical states of matter is the one of deconfined quarks in high densities and/or temperatures. An environment with extreme densities and low temper
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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7. Generation of gravitational waves in cosmological phase transition from quark-hadron / Geração de ondas gravitacionais na transição de fase cosmológica quark-hádron
Gravitational waves are possibly the only direct evidence to study the Early Universe in times preceding the matter-radiation decoupling. The future launch of LISA (Laser Interferometer Space Antenna) will possibly provide a precise instrument for measuring this radiation. In this work we calculate the gravitational wave background produced by the quark-hadr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/10/2010
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8. Efeito do tamanho do abrasivo no desgaste de metais. / The effect of abrasive size on the wear resistance of metallic materials.
In this research, the effect of abrasive size on the wear resistance of five metallic materials was investigated. Abrasive wear tests using a pin test on alumina paper were carried out using abrasive sizes between 16 µm and 192 µm. The wear surface of the specimens was examined by scanning electron microscopy for identifying the wear micromechanism and the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/06/2010
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9. Estudo de materiais magnéticos através de técnicas fototérmicas : efeito magnetocalórico e filmes finos / Study of magnetic materials using photothermal techniques : magnetocaloric effect and thin films
The magnetocaloric effect (MCE) has been widely studied because of its possible application in magnetic refrigeration. The search for suitable materials has intensified over the last decade, with a demand not only for the preparation of new materials but also for their complete characterization. The aim of this work is to apply the photothermal techniques to
Publicado em: 2010
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10. PRODUÇÃO E CARACTERIZAÇÃO DE ALUMINOSILCATOS LUMINESCENTES PARA APLICAÇÕES INDUSTRIAIS / PRODUCTION AND CHARACTERIZATION OF ALUMINOSILCATOS LUMINESCENT FOR INDUSTRIAL APPLICATIONS
This work aimed the synthesis and characterization of pure and doped calcium aluminosilicates using the proteic sol-gel method and by a new route, which combines the proteic sol-gel method with the solid state synthesis. In the proteic sol-gel method, coconut water (Cocos nucifera) is used as a starting solvent. But for the aluminosilicates synthesis, one of
Publicado em: 2010
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11. Nonextensive relativistic nuclear and subnuclear equation of state
Following the basic prescriptions of the Tsallis' nonextensive relativistic thermodynamics, we investigate the relevance of nonextensive statistical effects on the relativistic nuclear and subnuclear equation of state. In this framework, we study the first order phase transition from hadronic to quark-gluon plasma phase by requiring the Gibbs conditions on t
Brazilian Journal of Physics. Publicado em: 2009-08
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12. Atomistic simulations of supercooled gallium / Simulações atomisticas do galio super-resfriado
Recently, the existence of a liquid-liquid transition in pure substances has been proposed as an explanation of anomalous behaviors such as the increase of response functions (isothermal compressibility, coefficient of thermal expansion, specific heat) with decreasing temperature displayed by some liquids. The existence of this type of transition has been de
Publicado em: 2009