Physical Proprieties
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Heat treatment analysis of ASTM A106 steel spheroidization and erosive wear at high temperatures
Abstract The microstructures of steels are altered when exposed to high working temperatures for long periods, which results in varied physical and chemical proprieties. This study evaluates the erosive wear behavior of ASTM A106 steel after it is exposed to high temperatures for long durations. Samples of normalized ASTM A106GrB steel were placed in a muffl
REM, Int. Eng. J.. Publicado em: 2020-12
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2. Biomassa de espécies florestais para produção de carvão vegetal
Resumo Devido à alta demanda das empresas por geração de energia oriunda de fontes renováveis, o objetivo deste estudo foi analisar as propriedades da madeira e do carvão proveniente de três espécies florestais: Ceiba pentandra (L.) Gaertn. (Sumaúma), Guatteria sp. (Envirão) e Brosimum sp. (Mumuré). O material foi coletado na Empresa Rosa Madeireir
Ciênc. Florest.. Publicado em: 02/12/2019
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3. Effect of Curing Temperature, Activator Solution Composition and Particle Size in Brazilian Fly-Ash Based Geopolymer Production
The geopolymer binder is a relatively new class of inorganic binding material of elevated mechanical strength and good chemical properties. This can be produced using clay minerals or byproducts of the industrial processes, such as metakaolin, fly-ash and blast furnace slag. In this work, geopolymers were produced by alkaline activation of a Brazilian fly-as
Mat. Res.. Publicado em: 22/08/2019
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4. Translation and validation of the perceived locus of causality questionnaire (PLOCQ) in a sample of portuguese physical education students
Abstract AIM This study main aim was to translate and validate one of the most used SDT-based instruments to assess motivation in PE classes, the Perceived Locus of Causality Questionnaire (PLOCQ), to the Portuguese context. METHOD Sample was composed of 652 boys (M=15.4 years; SD=1.90) and 702 girls (M=15.47 years; SD=1.95), enrolled in physical education
Motriz: rev. educ. fis.. Publicado em: 09/04/2018
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5. Psychometric properties of the Negative Stereotypes Towards Aging Questionnaire (CENVE) among a sample of Portuguese adults
Abstract Stereotyped beliefs about old age and the aging process have proven to strongly promote negative behaviors toward the elderly, with unfavorable influences on their mental and physical health. Therefore, it is important to assess negative aging attitudes with brief but reliable and validated measurement instruments. The psychometric properties of the
Psicol. Reflex. Crit.. Publicado em: 15/03/2018
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6. DINÂMICA DO ARMAZENAMENTO E DA DISPONIBILIDADE DE ÁGUA EM ARGISSOLO SOB EUCALIPTO E CAMPO NATIVO / DYNAMICS OF STORAGE AND AVAILABILITY OF WATER IN ALFISOL UNDER EUCALYPTUS AND NATURAL GRASSLAND
A crescente demanda por produtos florestais tem propiciado o aumento das áreas com florestas plantadas no Brasil. O eucalipto é uma espécie florestal de rápido crescimento e é cultivada em larga escala, porém tem gerado polêmica devido às controvérsias existentes sobre o seu efeito na dinâmica da água do solo onde são implantados. Com o objetivo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2012
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7. Propriedades físicas dos principais solos da Amazônia brasileira em condições naturais.
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Belém. Publicado em: 2011
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8. Propriedades físicas e físico-químicas de maracujás cultivados nos sistemas orgânico e convencional, em consórcio com mandioca.
The physical and physical-chemistry proprieties of fruits of Passifl ora edulis and BRS Ouro Vermelho and BRS Sol do Cerrado cultivated in organic and conventional systems, with and without cassava consortium were analyzed. The cultivars showed diff erent behaviors in function environment. BRS Ouro Vermelho fruits showed similar physic and physical-chemistry
Planaltina. Publicado em: 2011
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9. A Equação-Mestra: atingindo o equilíbrio
In the last years, a great interest in nonequilibrium systems has been witnessed. Although the Master Equations are one of the most common methods used to describe these systems, the literature about these equations is not straightforward due to the mathematical framework used in their derivations. The goals of this work are to present the physical concepts
Química Nova. Publicado em: 2011
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10. Estudo experimental da microfiltração tangencial com membrana cerâmica aplicada na clarificação da vinhaça / Experimental study of cross flow microfiltration with ceramic membrane applied in clarifying the vinasse
This present work studied the process of cross flow microfiltration using tubular ceramic applied in the vinasse clarification from sugar cane, analyzing fluid dynamic features of process and the types of pore blocking applied to math models. In this research was used alfa-alumina (alfa-AL IND.2O IND. 3) ceramic membrane with pore size of 1.2 müm and 0.8 m�
Publicado em: 2010
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11. Turismo rural como fator de desenvolvimento local para os municípios de Cachoeira e Jaguaripe no Recôncavo Sul da Bahia
The present dissertation focus tourism as an economic inductor that consecutively generates income to rural proprieties situated in municipalities of the State of Bahia. Tourism activity, generally saying, can be considered as important both in terms of employment development and of income increase of a population that inhabits a certain region. The rural en
Publicado em: 2009
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12. COMPORTAMENTO FÍSICO DE UM LATOSSOLO SOB INTEGRAÇÃO LAVOURA - PECUÁRIA / PHYSICAL BEHAVIOR OF A OXOSOL UNDER CROP-LIVESTOCK INTREGATION
Soil compaction under traffic of animals has become an increasingly significant problem in soils used for crop-livestock integration. The objective of this study was to determine the effect of integration crop-livestock and different soil management systems on their attributes water and mechanical and relate them to the development and productivity of soybea
Publicado em: 2009