Cycle Optimization
Mostrando 1-12 de 86 artigos, teses e dissertações.
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1. Numerical modeling for the urban drainage gallery systems design
RESUMO Considerando as frequentes inundações dos centros urbanos, as limitações financeiras e a gestão ineficiente dos sistemas de Drenagem Urbana (DU) dos municípios brasileiros, é necessário que projetos sejam desenvolvidos com eficiência e economia. Estes objetivos são alcançados com a correta definição do diâmetro nominal e da declividade d
RBRH. Publicado em: 14/11/2019
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2. SYNTHESIS OF SOLID CATALYST FROM DOLOMITE FOR BIODIESEL PRODUCTION USING PALM KERNEL OIL IN AN OPTIMIZATION PROCESS BY DEFINITIVE SCREENING DESIGN
Abstract A solid catalyst for biodiesel production was synthesized from dolomite by calcination at different temperatures of 800 and 900oC for 2 h. The catalyst was characterized by scanning electron microscopy (SEM) and Brunauer Emmett Teller (BET). Its performance in the production of palm kernel biodiesel (PKB) using palm kernel oil in an optimization stu
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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3. APPLICATION OF RESPONSE SURFACE METHODOLOGY FOR LIPASE CATALYZED SYNTHESIS OF 2-ETHYLHEXYL PALMITATE IN A SOLVENT FREE SYSTEM USING ULTRASOUND
Abstract This study aims at clean production of 2-ethylhexyl palmitate catalyzed by lipase Fermase CALB 10000 in a solvent-free system using ultrasound technology. The central composite design (CCD) of response surface methodology with 4 factors at 3 levels consisting of acid to alcohol molar ratio (1:3-1:7), enzyme loading (3 %-7% (w/w)), ultrasound power (
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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4. 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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5. RELIABILITY-BASED MULTI-OBJECTIVE OPTIMIZATION APPLIED TO CHEMICAL ENGINEERING DESIGN
ABSTRACT Chemical engineering optimization represents a significant challenge due to the complexity of the mathematical models that are frequently required in this area. These models are normally associated with nonlinear equations that represent mass, energy, and momentum balances, which are submitted to physical, constitutive, environmental, and design lim
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
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6. VEGETATIVE DEVELOPMENT AND GROWING DEGREE-DAYS OF TROPICAL AND WINTER FORAGES
ABSTRACT One of the limitations to producing irrigated forages is setting suitable biometric parameters to establish the entrance of animals to grazing areas. Such parameters can be measured or even estimated. Estimates are advantageous for being practical and able to be used for grazing optimization. This study aimed to evaluate the correlation among growin
Eng. Agríc.. Publicado em: 25/04/2019
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7. Optimization of ultrasound-assisted extraction of bioactive compounds from jabuticaba (Myrciaria cauliflora) fruit through a Box-Behnken experimental design
Abstract Jabuticaba is a very popular fruit in Brazil being a great source of compounds with considerable biological activities. Novel optimized ultrasound-assisted extraction (UAE) methods have been proposed for anthocyanins and total phenolic compounds from jabuticaba. A Box–Behnken experimental design (BBD) with a response surface methodology (RSM) was
Food Sci. Technol. Publicado em: 18/04/2019
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8. High pressure abrasive water jet for excavation purpose: a tridimensional approach for cutting strategy
Abstract High pressure abrasive water jets (HPAWJ) are an emergent excavation technology. Despite being used for several applications since the nineteenth century, it is only in recent decades that this excavation purpose has been considered. This is the result of evolution in high pressure pump technology and parameter investigation. Special highlight shoul
REM, Int. Eng. J.. Publicado em: 2019-03
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9. Life Cycle Assessment (LCA) and Wind Power Generation: Application of the Methodology and the Generator to Power System
ABSTRACT Sustainability and economics are current issues in the generation of electricity. The energy matrix is diversified and some forms have stood out, such as wind. Some tools have been developed to improve project efficiency, one of which is Life Cycle Assessment (LCA). This presents solidity when assisting projects financially and environmentally, eval
Braz. arch. biol. technol.. Publicado em: 29/10/2018
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10. Perspectives for cancer immunotherapy mediated by p19Arf plus interferon-beta gene transfer
While cancer immunotherapy has gained much deserved attention in recent years, many areas regarding the optimization of such modalities remain unexplored, including the development of novel approaches and the strategic combination of therapies that target multiple aspects of the cancer-immunity cycle. Our own work involves the use of gene transfer technology
Clinics. Publicado em: 06/09/2018
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11. Nutritional and antioxidant potential of a desert underutilized legume – tepary bean (Phaseolus acutifolius). Optimization of germination bioprocess
Abstract Tepary bean (Phaseolus acutifolius) is a short life cycle legume, resistant to many diseases and drought, originally from the deserts and semi-arid environment of Northwestern Mexico and the Southwestern US. Its mature seeds are scarce consumed, and their high protein and carbohydrate contents are underutilized. The aim was to identify optimal germ
Food Sci. Technol. Publicado em: 26/07/2018
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12. Evaluación del uso de acetileno como fuente de carbono en la carburización de aceros
ABSTRACT The effect of using acetylene as a carbon source in the gas carburization of AISI/SAE 8620 steel was evaluated in this work. For this purpose, a gaseous carburizing system was designed and manufactured with the following characteristics: controlled production of a carburant gaseous atmosphere, inert and hermetic isothermal reaction zone and carbon/o
Matéria (Rio J.). Publicado em: 19/07/2018