Operational Profit
Mostrando 1-12 de 37 artigos, teses e dissertações.
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1. Multi-stage dumping sequence - a feasible waste management alternative for open pit mining
Abstract Waste management and environmental aspects are progressively gathering attention in the mining industry. Mine planners must deal with increasingly complex tasks to balance between ore block schedules, waste disposal, operational cost and environmental reclamation. The mine incomes are generally related to mining and processing of the ore, thus most
REM, Int. Eng. J.. Publicado em: 2021-06
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2. Optimum mine production rate based on price uncertainty
Abstract The production rate of a mining operation has an important effect on the operational cycle and gross profit, which are often evaluated based on engineering practices. Assessment of the economic performance of mine operations in mining engineering is of great importance because an incorrect production rate can result in significant financial losses.
REM, Int. Eng. J.. Publicado em: 16/09/2019
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3. Productive performance and economic evaluation of tilapia stocked in different times of the year
ABSTRACT This study aimed to determine production cycles based on the stocking period and the influence of the cycles on productive performance indices, production costs, and profitability. The present study was carried out on a fish farm located in Palmital - SP, Brazil, which consists of 2706 m3 of net cages with an annual production of 400 tons of tilapia
R. Bras. Zootec.. Publicado em: 2017-07
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4. Comparativo entre processos florestais terceirizados e primarizados / Comparison between outsourced and primarized forest processes
The Outsourcing and the Primarization constitute management strategies been used by Brazilians forest companies. However, although its use is increasing, technical, economics and strategy terms are not being studied in Brazil, mainly on the forestry sector. Therefore, the principal goal on this research was to compare Outsourcing and Primarization Models inc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/02/2012
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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. Simulação do impacto da disponibilidade de sistemas no retorno econômico e produção de petróleo / Simulation of the impact of system availability on profit and petroleum production
The reservoir simulation is the basis for the forecasts of production, dimensioning of surface equipments and the planning of activities related to production. Therefore, a production strategy which generates oil and gas production curves over the operational lifetime. However, even without considering geological and economic uncertainties, in practice, this
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/11/2011
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7. Selection objectives and criteria for sheep in Central Brazil
Three production systems for sheep (Low - L, Medium - M and High - H technology), with increasing technological levels, were studied under conditions in the Center-west of Brazil, to determine economic weights and selection indices of important traits. Receipts and costs were simulated using an economic simulator to calculate the structure of the operational
R. Bras. Zootec.. Publicado em: 2011-12
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8. Reacting flow simulations of supercritical water oxidation of PCB-contaminated transformer oil in a pilot plant reactor
The scale-up of a supercritical water oxidation process, based on recent advancements in kinetic aspects, reactor configuration and optimal operational conditions, depends on the research and development of simulation tools, which allow the designer not only to understand the complex multiphysics phenomena that describe the system, but also to optimize the o
Brazilian Journal of Chemical Engineering. Publicado em: 2011-06
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9. Maximum profit cogeneration plant - MPCP: system modeling, optimization problem formulation, and solution
The well-known CGAM optimization problem was formulated to serve as a benchmark for comparison of different thermoeconomic methodologies. The CGAM cogeneration plant produced 30 MW of power and 14 kg/s of saturated vapor at 20 bar. The objective function was the total cost rate of the system, related to thermodynamic variables and installation costs. Because
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-03
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10. Proposta de integração do sistema de automação de subestações retificadoras do sistema metrô-ferroviário brasileiro. / Proposal for the integrated automation of the brazilian subway system rectifier substations.
This dissertation there presents a proposal for the integrated automation of the Brazilian subway system rectifier substations, supported on the gains of reliability which may be obtained in case it is implemented, and in the improvement of the efficiency of operation of the system open to question. The inquiry was supporting in the necessity of paying atten
Publicado em: 2010
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11. Uma investigação do nível de sustentabilidade das companhias de papel e celulose e a influência das informações financeiras sobre a qualidade da divulgação socioambiental / An investigation of the level of sustainability in companies on cellulose and paper segment and the influence of financial information on quality of environmental and social disclosure
The concept of sustainability has been discussed worldwide and increasingly influenced by the decisions of the market in different countries. Nations, governments, corporations, managers and citizens have had their positions and questions under the expanded views of economic, social and environmental. The spread of a "green" generation has affected not only
Publicado em: 2010
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12. A percepção de gestores de instituições de ensino superior privadas da cidade de São Paulo em relação à adesão ao PROUNI
Since its launch, PROUNI has revealed the perceptions of many representatives in society, but not the most important ones - the administrators of the private colleges. This research tries to identify and analyze what are their perceptions of these administrators in São Paulo city about the inclusion in the program. Because when included in the program the c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2009