Confined Space
Mostrando 1-12 de 59 artigos, teses e dissertações.
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1. As experiências espaciais das crianças no espaço urbano
RESUMO O artigo trata de uma pesquisa que objetivou compreender como tem sido construída a espacialização das crianças em uma cidade de médio porte do Sudeste do Brasil e, desse modo, quais as possibilidades e os constrangimentos que se têm apresentado para elas na contemporaneidade. Como as experiências espaciais das crianças estão sendo desenhadas
Educ. rev.. Publicado em: 02/05/2019
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2. Retroperitoneal access for robotic renal surgery
ABSTRACT Introduction and Objective Retroperitoneal access for robotic renal surgery is an effective alternative to the commonly used transperitoneal approach. We describe our contemporary experience and technique for attaining retroperitoneal access. Materials and Methods We outline our institutional approach to retroperitoneal access for the instruction
Int. braz j urol.. Publicado em: 2018-02
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3. Experimental Study on the Changing Rules of Coal Fire Indictor Gases of the Whole Combustion Phases in Confined Space
ABSTRACT When the coal mine fire occurs, it is crucial to judge the fire combustion state by analyzing indicator gases concentration and changing trends of various gas ratios in order to formulate proper rescue measures. It's an effective methodology to estimate the changes of combustion state in coal mine fire accurately by the trends analysis of indicator
Braz. arch. biol. technol.. Publicado em: 20/10/2016
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4. Electrosynthesis and Characterisation of Polymer Nanowires from Thiophene and its Oligomers
Validating methodology formerly reported, polythiophene electrosynthesised as nanowires from the monomer and some of its oligomers is now described. The work is conducted on a platinum electrode previously modified with a template that tunes the polymer growth inside the confined space of the pores. In addition, it was confirmed that the use of larger chain-
J. Braz. Chem. Soc.. Publicado em: 2015-11
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5. ESPAÇOS INDIVIDUAIS PARA NOVILHOS CONFINADOS / INDIVIDUAL SPACE FOR FEEDLOT STEERS
The objective, of this study, was evaluated, different individual spaces for steers feedlot finished in group pens and yours effects on patterns behavioral and performance. Forty eight steers, with average initial of twenty months and 243.4 kg, were used. Animals were feedlot, four for pen, allocated in treatments accorded the individual space, 2.5, 5.0 and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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6. Enfermidades Cutâneas Digitais Bovina: Aspectos Genéticos E Terapêuticos / Digital dermatitis disease bovine: genetic and therapeutic aspects
This study has aimed do evaluate a risk factor for bovine digital dermatitis and the efficacy of 5% aqueous barbatimão extract solution as ancillary in interdigital skin incisional wound repair. One hundred bovine females, 50 Holstein and 50 Girolando, from two different farms were used for the risk factor study. Experimental units were divided into four gr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/03/2011
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7. Análise de geometrias com curvas fechadas no tempo / Analysis of Geometries with Closed Timelike Curves.
This work deals with the analysis of cylindrically symmetric and stationary space-times Ct with closed timelike curves. The equation of motion describing the evolution of a massive scalar field in a Ct space-time is obtained. A class of space-times with closed timelike curves describing cosmic strings and cylinders is studied in detail. In such space-times,
Publicado em: 2010
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8. Guias de onda com um ambiente para testes de uma eletrodinâmica com violação das simetrias de Lorentz e CPT / Waveguides as a way of testing an electrodynamics with broken Lorentz and CPT symmetries
We study a CPT- and Lorentz-odd electrodynamics in (3+1) dimensions, obtained by adding a Chern-Simons-like term to the usual Maxwell model, as described by the radiation sector of the Standard Model Extension. Once this term is proportional to a constant background "4-vector", (kAF), wich selects a preferred direction in the spacetime (breaking its isotropy
Publicado em: 2010
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9. Natureza das interações celulose-água / Nature of cellulose-water interaction
This dissertation aims to contribute to understand the interaction between two hydrophilic substances water and cellulose whose properties are strongly influenced by hydrogen bonding. Hydrogen bonds, HB, are present in cellulose fibers reinforcing the interior of the polymeric chain and allowing for high adherence among these chains. These intra and inter HB
Publicado em: 2009
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10. Finding invariant tori in the problem of a periodically corrugated waveguide
Some dynamic properties for a light ray suffering specular reflections inside a periodically corrugated waveguide are studied. The dynamics of the model is described in terms of a two dimensional nonlinear area preserving map. We show that the phase space is mixed in the sense that there are KAM islands surrounded by a large chaotic sea that is confined by t
Brazilian Journal of Physics. Publicado em: 2008-03
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11. Aproximações entre experiencias de moradia popular no bairro Belenzinho (SP) : Mutirão do Casarão e Vila Maria Zelia : memoria e segregação / Bringing together low-income housing experiences in the Belenzinho neighborhood (SP) : Mutirão do Casarão e Vila Maria Zelia : Memory and Segregation
This dissertation proposes a reflection about the low-income housing in the city of São Paulo, considering two experiences located in the Belenzinho neighborhood: the Vila Maria Zélia (a workers village from the beginning of the 20th century) and the Mutirão do Casarão (collaborative self building village constructed in the 1990´s by tenement house inha
Publicado em: 2008
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12. Formação de mesoporos na síntese de zeólitas ZSM-5 via nanomoldagem avaliação no craqueamento de n-decano / Formação de mesoporos na síntese de zeólitas ZSM-5 via nanomoldagem avaliação no craqueamento de n-decano
The use of zeolites in the cracking of hydrocarbons is limited because the molecules higher than 0.74 nm do not diffuse in their micropores. In the other hand, molecular sieves as MCM-41, MCM-48 ou SBA-15, whose diameters are up 10 nm for the two formers and up to 30 nm for the last, have low hydrothermal stability and catalytic activity. To overcome those l
Publicado em: 2008