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Analysis of Influencing Factors and Decision Criteria on Infield-Logistics of different Farm Types in Germany CIGR Journal
Mederle, Michael; Bernhardt, Heinz.
In future increasing production efficiency in agriculture will not only be achieved by rising machinery working widths but more and more by optimization of entire production process chains. The more machines are interacting the higher will be the specific optimization potential.Navigation not only to the fields but also within the fields will certainly contribute to make use of these efficiency reserves. Necessary therefore is the knowledge of potential influences on infield-logistics to be able to navigate agricultural machinery in the fields effectively and process optimized.Preliminary studies based on GPS-lane analysis in different German agricultural regions and in Central Canada show that decisions on specific infield patterns to a certain degree...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural logistics; Process optimization; Infield navigation; Vehicle guidance; Decision criteria.
Ano: 2017 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4058
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Computational fluid dynamics evaluation of liquid food thermal process in a brick shaped package Ciênc. Tecnol. Aliment.
Augusto,Pedro Esteves Duarte; Cristianini,Marcelo.
Food processes must ensure safety and high-quality products for a growing demand consumer creating the need for better knowledge of its unit operations. The Computational Fluid Dynamics (CFD) has been widely used for better understanding the food thermal processes, and it is one of the safest and most frequently used methods for food preservation. However, there is no single study in the literature describing thermal process of liquid foods in a brick shaped package. The present study evaluated such process and the influence of its orientation on the process lethality. It demonstrated the potential of using CFD to evaluate thermal processes of liquid foods and the importance of rheological characterization and convection in thermal processing of liquid...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mathematical modeling; Computational fluid dynamics (CFD); Process optimization; Thermal process; Sterilization.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000100020
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An artificial neural network model for prediction of quality characteristics of apples during convective dehydration Ciênc. Tecnol. Aliment.
Scala,Karina Di; Meschino,Gustavo; Vega-gálvez,Antonio; Lemus-mondaca,Roberto; Roura,Sara; Mascheroni,Rodolfo.
In this study, the effects of hot-air drying conditions on color, water holding capacity, and total phenolic content of dried apple were investigated using artificial neural network as an intelligent modeling system. After that, a genetic algorithm was used to optimize the drying conditions. Apples were dried at different temperatures (40, 60, and 80 °C) and at three air flow-rates (0.5, 1, and 1.5 m/s). Applying the leave-one-out cross validation methodology, simulated and experimental data were in good agreement presenting an error < 2.4 %. Quality index optimal values were found at 62.9 °C and 1.0 m/s using genetic algorithm.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Artificial neural networks; Quality attributes; Genetic algorithm; Process optimization; Dried apple.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000300004
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Statistical optimization for tannase production by Aspergillus tubingensis in solid-state fermentation using tea stalks Electron. J. Biotechnol.
Xiao,Anfeng; Huang,Yufeng; Ni,Hui; Cai,Huinong; Yang,Qiuming.
Background A sequential statistical strategy was used to optimize tannase production from Aspergillus tubingensis using tea stalks by solid-state fermentation. Results First, using a Plackett-Burman design, inoculum size and incubation time (among seven tested variables) were identified as the most significant factors for tannase yield. The effects of significant variables were further evaluated through a single steepest ascent experiment and central composite design with response surface analysis. Under optimal conditions, the experimental value of 84.24 units per gram of dry substrate (U/gds) closely matched the predicted value of 87.26 U/gds. Conclusions The result of the statistical approach was 2.09 times higher than the basal medium (40.22 U/gds)....
Tipo: Journal article Palavras-chave: Aspergillus tubingensis; Process optimization; Response surface methodology; Tea stalks; Tannase fermentation.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000300001
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