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Registros recuperados: 108 | |
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Maciel, Gisele; de la Torre, Diego; Bartosik, Ricardo; Izquierdo, Natalia; Cendoya, Gabriela. |
The adsorption and desorption equilibrium moisture content/equilibrium relative humidity relationships of sunflower seeds with four different oil contents (35.7%, 44.6%, 48.6% and 52.7%) were obtained for temperatures of 8, 15, 25 and 35°C and moisture contents of 6.0%, 8.5%, 11.0%, 13.5%, 16.0% and 18.5%.The goodness of fit of four equilibrium moisture content/equilibrium relative humidity models (Modified Henderson, Modified Chung-Pfost, Modified Halsey and Modified Oswin) were evaluated for each oil content. The Modified Halsey model was the best for predicting equilibrium moisture content/equilibrium relative humidity relationships based on the Akaike Information Criterion, the Bayesian Information Criterion and estimated residual standard derivation.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agriculture; Grain postharvest; Storage Isotherms; Models; Parameters; Sunflower; Oil content; Safe storage moisture content.. |
Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3269 |
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Gely, Maria Cristina; Pagano, Ana María. |
Moisture constitutes one of the most influential factors in the conservation of sorghum grains during storage due to their relationship with the biological factors that cause postharvest damage, affecting the nutritional and economic values. For this reason it is important to evaluate the effect of moisture content on the physical characteristics of the grain in order to establish the design and operation conditions of the post-harvest processes. Accordingly, the aim of this work is to analyze the dependence on moisture content of physical properties of technological interest for the post-harvest grain sorghum stages.Experimental results show that the moisture significantly affects the properties width, thickness, geometric mean diameter, sphericity, bulk... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Post Harvest Grain sorghum Physical properties; Moisture content; Models. |
Ano: 2017 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4145 |
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Costa,Rejane Helena Ribeiro da; Medri,Waldir. |
O modelo de produção adotado na suinocultura brasileira, principalmente na Região Oeste de Santa Catarina, é feita com os animais confinados em pequenas áreas, trazendo como conseqüência grande produção de dejetos. Este é diluído, através do uso de água para a limpeza das baias, aumentando seu volume. Seu lançamento nos cursos dágua da região está comprometendo a qualidade dos mananciais devido a contaminação bacteriológica e poluição por compostos químicos. Dessa forma, há necessidade de processos de tratamento para minimizar os problemas ambientais gerados por essa atividade. As lagoas de estabilização têm sido utilizadas, por apresentar um excelente desempenho quanto à eficiência de remoção da matéria orgânica, dos nutrientes e de coliformes fecais;... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stabilisation ponds; Swine wastes; Costs; Models; Optimisation. |
Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000300017 |
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Gerrard,Andrew Mark; Páca Júnior,Jan; Kostecková,Alena; Páca,Jan; Stiborová,Marie; Soccol,Carlos Ricardo. |
This paper proposes the use of a preliminary, phenol removal step to reduce peak loads arriving at a conventional effluent plant. A packed bed reactor (PBR) using polyurethane foam, porous glass and also cocoa fibres as the inert support material was used. Experiments have been carried out where the flow-rates, plus inlet and outlet phenol concentrations were measured. A simple, plug-flow model is proposed to represent the results. Zero, first order, Monod and inhibited kinetics rate equations were evaluated. It was found that the Monod model gave the best fit to the experimental data and allowed linear graphs to be plotted. The Monod saturation constant, K, is approximately 50 g m-3, and ka is around 900 s-1. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodegradation; Phenol; Aerobic reactor; Models. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000500018 |
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Rosa-Filho,José Souto; Bemvenuti,Carlos Emílio; Elliott,Michael. |
This study aimed to predict the biological parameters (species composition, abundance, richness, diversity and evenness) of benthic assemblages in southern Brazil estuaries using models based on environmental data (sediment characteristics, salinity, air and water temperature and depth). Samples were collected seasonally from five estuaries between the winter of 1996 and the summer of 1998. At each estuary, samples were taken in unpolluted areas with similar characteristics related to presence or absence of vegetation, depth and distance from the mouth. In order to obtain predictive models, two methods were used, the first one based on Multiple Discriminant Analysis (MDA), and the second based on Multiple Linear Regression (MLR). Models using MDA had... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Prediction; Models; Benthos; Estuary; Southern Brazil. |
Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000400015 |
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Gilabert,Horacio; Paci,Carlos. |
Volume-ratio and total volume models for Eucalyptus nitens and E. globulus grown in southern Chile were ftted independently. The validation process considered the bias and the total error in the volume estimates, as well as the age classes close to thinning and harvesting operations. Volume estimates from the system of functions (volume and ratio) were compared to the volume estimates from a taper function (Bruce model) to estimate the volume at different top stem diameters. The results indicated that general (as opposed to local) logarithmic functions performed better in their estimation of the total volume for both species, while a unique polynomial model was the best model for the ratio estimates for both Eucalyptus species. The system of functions... |
Tipo: Journal article |
Palavras-chave: Eucalyptus; Models; Timber products estimates; Volume-ratio functions. |
Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000100001 |
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Omolola,Adewale Olusegun; Jideani,Afam Israel Obiefuna; Kapila,Patrick Francis; Jideani,Victoria Adaora. |
AbstractOptimization of microwave drying conditions of Luvhele and Mabonde banana varieties were studied using response surface methodology. The drying was performed using a central composite rotatable design for two variables: microwave power level (100, 200 and 300 W) and drying time (40, 26, and 12 min.) for Luvhele; (100, 200 and 300 W) and (42, 27, and 12 min) for Mabonde. The colour and texture (hardness) data were analyzed using ANOVA and regression analysis. The fitness of the models obtained was good as the lack of fit for each of the models was not significant. The coefficient of determination R2 of the models was relatively high, hence the models obtained for the responses were adequate and acceptable. Drying conditions of 178.76 W, 12 min.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Banana; Luvhele; Mabonde; Microwave; Drying; Response surface methodology; Colour; Hardness; Models; Optimization. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000300438 |
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Candelaria Martínez, Bernardino. |
Se caracterizaron los agroecosistemas (AES) de la microcuenca Paso de Ovejas 1 (POV-1) y con base en las condiciones locales se diseñó un índice agregado de sustentabilidad, en el cual se incluyeron cuatro dimensiones: ambiental, económica, social y humana, con un total de 29 indicadores. Para determinar los valores umbrales (máximo y mínimo) de cada indicador se consideraron parámetros locales, de cada grupo se seleccionó un AES al azar al que se le denominó agroecosistema tipo, en el que se realizaron evaluaciones detalladas y se representó en un modelo de simulación. Los grupos (G) identificados fueron: G1) tendencia a la ganadería con alta disponibilidad de tierras, G2) tendencia al manejo de cultivos con baja disponibilidad de tierras y G3) tendencia... |
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Palavras-chave: Modelación; Modelos; Escenario; Indice agregado; Territorio; Modeling; Models; Scenario; Aggregation index; Territory; Agroecosistemas Tropicales; Doctorado. |
Ano: 2011 |
URL: http://hdl.handle.net/10521/548 |
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Riaño Pachón, Diego Mauricio; González Estrada, Elizabeth; Alexa, Adrian; Ramírez, Fidel; Vischi Winck, Flavia; Gómez Merino, Fernando, Coord.; Silva Rojas, Hilda Victoria, Coord.; Pérez Rodríguez, Paulino, Coord.. |
En esta publicación intitulada “Bioinformática: aplicaciones a la genómica y proteómica” se detallan algunos de los avances más sobresalientes de los temas de genómica y proteómica, derivados de un curso internacional sobre el tema, organizado por el Colegio de Postgraduados. Estos avances incluyen aspectos de las dos ciencias ómicas, incluyendo genómica y biología estructural, código R, análisis comparativo y evolución, agrupamiento y minería de datos en R, redes de interacciones entre proteínas y proteómica bioinformática. BIOINFORMATICS : APPLICATIONS TO GENOMICS AND PROTEOMICS. ABSTRACT : In this publication entitled "Bioinformatics: applications to genomics and proteomics" are some of the most salient issues of genomics and proteomics, derived from an... |
Tipo: Libro |
Palavras-chave: Bioinformática; Proteómica; Genómica; ADN; Proteínas; Modelación; Simulación; Análisis de genómas; Biología estructural; Código R; Análisis comparativo; Minería de datos; Computación aplicada; Bioinformatics; Proteomics; DNA; Proteins; Models; Genomics; Simulation; R Code; Data mining; Computing; Genome analysis. |
Ano: 2010 |
URL: http://hdl.handle.net/10521/313 |
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Peterson, Garry; McGill University; garry.peterson@mcgill.ca; De Leo, Giulio A; Agenzia Regionale per la Protezione dell' Ambiente; deleo@dsa.unipr.it; Hellmann, Jessica J; Stanford University; jessicah@leland.stanford.edu; Janssen, Marco A; Indiana University; maajanss@indiana.edu; Kinzig, Ann; Arizona State University; Ann.Kinzig@asu.edu; Malcolm, Jay R; University of Toronto; jay.malcolm@utoronto.ca; O'Brien, Karen L; -; kobrien@online.no; Pope, Shealagh E; Environment Canada; shealagh.pope@ec.gc.ca; Rothman, Dale S; Columbia University; drothman@bio2.edu; Shevliakova, Elena; Carnegie Mellon University; lenish@cmu.edu; Tinch, Robert R.T.; York University, UK; rrtt100@york.ac.uk. |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptive management; Climate change; Global change; Uncertainty; Models. |
Ano: 1997 |
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Vink, Martinus J.; Public Administration and Policy Group, Wageningen University; martinus.vink@wur.nl; Dewulf, Art; Public Administration and Policy Group, Wageningen University; art.dewulf@wur.nl; Termeer, Catrien; Public Administration and Policy Group, Wageningen University; katrien.termeer@wur.nl. |
The long-term character of climate change and the high costs of adaptation measures, in combination with their uncertain effects, turn climate adaptation governance into a torturous process. We systematically review the literature on climate adaptation governance to analyze the scholarly understanding of these complexities. Building on governance literature about long-term and complex policy problems, we develop a conceptual matrix based on the dimensions knowledge and power to systematically study the peer-reviewed literature on climate adaptation governance. We find that about a quarter of the reviewed journal articles do not address the knowledge or power dimension of the governance of climate change adaptation, about half of the articles discuss either... |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptive institutions; Climate change; Governance of climate adaptation; Interactive framing; Learning; Literature on climate adaptation; Models; Negotiating; Politics. |
Ano: 2013 |
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Registros recuperados: 108 | |
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