Operational Quantities
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Grandezas físicas multidimensionais
Resumo No presente trabalho apresentamos a continuação do recente artigo “Grandezas Físicas Unidimensionais”, publicado na Revista Brasileira de Ensino de Física. A construção operacional de uma grandeza passa pela definição de seu domínio, separação do domínio em classes e, por fim, associação injetiva de um espaço de valores às classes.
Rev. Bras. Ensino Fís.. Publicado em: 25/03/2019
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2. MECHANIZED AND INDIVIDUALIZED APPLICATION OF N-P-K IN COMBINED OPERATIONS IN SUGARCANE
ABSTRACT: A new concept of fertilizer machine is under development and shows as differential individually fertilizer application, that is sources of N, P and K are applied separately for the purpose of improving the distribution efficiency of the quantities applied. The aim was to compare the quality of the individualized mechanized distribution of N, P and
Eng. Agríc.. Publicado em: 2017-08
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3. Análise dos procedimentos e critérios de implantação de feixes de raios X de referência ISO 4037 em baixas energias
According to the radiological protection principles, practices involving ionizing radiation must be planned and carried out under the guarantee that the values of individual doses, the number of people exposed to radiation and the probability of accidental exposures are as low as reasonably achievable. Therefore, radiation dosimetry is required to be done wi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/08/2012
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4. Avaliação dos pontos de apoio (ecopontos) na gestão dos resíduos sólidos urbanos: estudo de caso de São José do Rio Preto - SP
The use of Support Points (AP), also known as Eco points, the integrated management of municipal solid waste (MSW) has occurred in different cities of the world and in Brazil, such practice is spreading, albeit slowly. The prospect is that such use contributes to a better management of MSW. It is necessary, however, to monitor and evaluate these procedures t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/05/2012
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5. Impacto de diferentes algoritmos e geometria de depósitos minerais no planejamento de longo prazo
The main objective of mine planning is to determine ore quantity and quality distribution along a time sequence, i.e., scheduling the ore necessary to make the project technically and economic viable. These temporal sequences are fundamental for the financial success of a mine activity and presently this optimal sequence can be obtained through various minin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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6. Gestão de estoques de produtos siderúrgicos semi-acabados utilizando uma abordagem híbrida de otimização e simulação
The inventory management is a vital subject witch frequently absorbs substantial part of the budget of an organization. As they do not add value to the product, as less inventories a productive system use more efficient it will be. However the current competitive environment, with the strong presence of global payers, forces the operational costs reduction,
Publicado em: 2009
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7. Desenvolvimento psicológico e transtorno de déficit de atenção e hiperatividade (TDAH): a construção do pensamento operatório / Psychological development and Attention Deficit Hyperactitity Disorder (ADHD): the construction of operational thinking
Attention Deficit Hyperactivity Disorder (ADHD) is one of the most prevalent disorders in childhood and adolescence. Recent research shows that, at least from a cognitive level, there are important differences in the development of children with ADHD when compared with children without any psychiatric diagnosis. This work aims to contribute to the field of r
Publicado em: 2009
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8. Experimental determination of vapor-liquid equilibrium data of binary mixtures of fatty acids through Differential Scanning Calorimetry / Determinação experimental de dados de equilibrio liquido-vapor de misturas binarias de componentes de oleos vegetais atraves da calorimetria diferencial exploratoria
This work will contribute to some unpublished data of phase equilibria of compounds that form the biodiesel, which arouses the interest immediately. Vapor-liquid equilibrium (VLE) data for three binary mixtures of saturated fatty acids have been successfully measured through differential scanning calorimetry (DSC). These data are of great interest to the ind
Publicado em: 2009
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9. AvaliaÃÃo da eficÃcia do avental equivalente a 0,5 mm de chumbo em tomografia por emissÃo de PÃsitrons atravÃs de simulaÃÃes Monte Carlo / Evaluation of the effectiveness of 0.5 mm lead equivalent apron in positron emission tomography by Monte Carlo simulation
In Positron Emission Tomography (PET), medical staff is exposed to 511 keV photons, which is a result of the positron-electron annihilation process. This energy is about four times the 140 keV commonly found in studies based on Single Photon Emission Computed Tomography (SPECT). Despite these different energy levels, 0.5 mm lead equivalent aprons have being
Publicado em: 2008
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10. Localização de faltas em linhas de transmissão: desenvolvimento de novos algoritmos e implementação de sistema computacional para aplicações práticas
Transmission line automatic fault location allows to estimate the approximate point at the line where the short-circuit occurs, using voltage and current data from one or more of its ends. The maintenance team can reach the fault local and restore the operational conditions fast and more efficiently, increasing the reliability of the power electric system an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/06/2007
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11. Projeto, desenvolvimento, otimização e scale-up de um leito fluidizado para classificação de fosfato bicálcico microgranulado
Brazil holds second place in world production of dicalcium phosphate, which represents the main source of phosphorus for complementing the mineral salt that makes up the daily feed for cattle, hogs and fowls. Considering the fact that the increase in consumption of phosphates due to the increased annual consumption of meat by the world population, developmen
Publicado em: 2006
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12. A study of paint sludge deactivation by pyrolysis reactions
The production of large quantities of paint sludge is a serious environmental problem. This work evaluates the use of pyrolysis reaction as a process for deactivating paint sludge that generates a combustible gas phase, a solvent liquid phase and an inert solid phase. These wastes were classified into three types: water-based solvent (latex resin) and solven
Brazilian Journal of Chemical Engineering. Publicado em: 2003-03