Operational Cost
Mostrando 13-24 de 253 artigos, teses e dissertações.
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13. SENSOR SYSTEMS FOR MAPPING SOIL FERTILITY ATTRIBUTES: CHALLENGES, ADVANCES, AND PERSPECTIVES IN BRAZILIAN TROPICAL SOILS
ABSTRACT Soil fertility attributes have different scales and forms of spatial and temporal variations in agricultural fields. Adequate spatiotemporal characterization of these attributes is fundamental to the successful development of strategies for variable rate application of fertilizers, enabling the classic benefits of precision agriculture (PA). Studies
Eng. Agríc.. Publicado em: 09/09/2019
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14. Operations strategy and analysis of competitive criteria: a case study of a food business
Resumo Este trabalho tem como objetivo propor uma forma alternativa para acessar a informação da prioridade dos clientes em relação aos critérios competitivos que uma empresa da indústria de alimentos necessita considerar. A partir desta abordagem, é possível identificar um conjunto consistente de informações que auxilie no suporte do processo dec
Gest. Prod.. Publicado em: 22/08/2019
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15. OPTIMIZATION OF PRESSURE-SWING DISTILLATION FOR ANHYDROUS ETHANOL PURIFICATION BY THE SIMULATED ANNEALING ALGORITHM
ABSTRACT The present study addresses the novel application of the simulated annealing algorithm (SAA) to optimize the pressure-swing distillation (PSD) process for anhydrous ethanol purification. Three different softwares (Aspen Plus®, Excel® and Matlab®) were integrated to simultaneously optimize seven design and operational variables. The configuration
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
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16. DEVELOPMENT OF INEXPENSIVE CELLULOSE-BASED SORBENTS FOR CARBON DIOXIDE
ABSTRACT Aqueous amine solutions are benchmark solvents for CO2 capture and their operational drawbacks are well-known. In order to overcome these problems, the support of amines on solid materials appears as an option for CO2 capture. Cellulose is a versatile and low-cost material that can be used as a support. This study reports chemical modification of ce
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
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17. Operating cost of sugarcane harvester in function of agricultural productivity and harvester age
RESUMO A agricultura brasileira tem expandido e melhorado suas técnicas nas últimas décadas, assim como a mecanização da cultura de cana-de-açúcar. Em geral, o custo da mecanização dessa cultura é o mais elevado dentre o custo total de produção em relação a outras culturas. Este custo é composto de vários componentes, tais como o custo da col
Rev. bras. eng. agríc. ambient.. Publicado em: 10/07/2019
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18. Temporal variation of bacterial population and response to physical and chemical parameters along a petrochemical industry wastewater treatment plant
Abstract: The petrochemical industry has played a considerable role in generation and release of waste in the environment. Activated sludge and facultative lagoons are commonly used for domestic and industrial wastewater treatment due to their low-cost and minimal need for operational requirements. Microorganisms present in wastewater treatment plant (WWTP)
An. Acad. Bras. Ciênc.. Publicado em: 01/07/2019
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19. A Implantação do Sistema de Monitoramento e Avaliação da Secretaria Estadual de Saúde do Distrito Federal (SES/DF)
Resumo Por meio da criação do Sistema Único de Saúde (SUS), os processos de planejamento ganham importância intrínseca para a formulação de políticas públicas de saúde e para subsidiar a tomada de decisões, a implementação de ações e a obtenção de resultados. Como as ferramentas de planejamento são fundamentais para orientar a gestão, é
Ciênc. saúde coletiva. Publicado em: 27/06/2019
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20. Mine fleet cost evaluation - Dijkstra's optimized path
Abstract The transport distance in a mining operation strongly influences a mine operation revenue and its operational cycle because it is a fundamental part of the total mining costs. Generally, the transport route is determined based on an engineer's practical knowledge, which does not consider any mechanism to optimize the possible routes to be taken. In
REM, Int. Eng. J.. Publicado em: 2019-06
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21. NPV analysis of multiple surface constraints for pit expansion scenarios under geological uncertainty
Abstract To optimize a mining project, it is necessary to deal with several technical aspects and constraints, such as orebody modelling, reserve estimation, blending strategy, optimal and operational pit designs, cost control, environmental issues, among others. In this sense, locating surface infrastructures is one of the most critical mine planning concer
REM, Int. Eng. J.. Publicado em: 2019-06
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22. CEP ONLINE: A WEB-ORIENTED EXPERT SYSTEM FOR STATISTICAL PROCESS CONTROL
ABSTRACT In this paper, a new software for Statistical Process Control (SPC) is proposed. The system, the so-called CEP Online, was developed based on statistical computing resources of well-known free softwares, such as HTML, PHP, R and MySQL under an online server with operating system Linux Ubuntu. The main uni and multivariate SPC tools are available for
Pesqui. Oper.. Publicado em: 09/05/2019
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23. Influence of aseptic surge tank venting on equipment sterilization
Resumo Tanques assépticos (AST) são sistemas aplicados para estocagem do produto estéril até o envase, mantendo a condição de esterilidade comercial obtida nas etapas anteriores do processo. Para evitar a recontaminação microbiológica do produto, uma condição de esterilidade deve ser alcançada no tanque antes da produção, pela aplicação de u
Braz. J. Food Technol.. Publicado em: 14/03/2019
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24. Selection of materials for blast furnace injection using quality indicators
Abstract The injection of pulverized materials is a technique used in most of the blast furnaces in the world to reduce coke and charcoal consumption. In addition, injection is one of the main variables of the blast furnace heat control. Coal is the most used material for the injection, but some industries have been attempting to use other materials, usually
REM, Int. Eng. J.. Publicado em: 2019-03