Optimization analysis of dual-purpose systems

This paper aims to analyze dual-purpose systems focusing the total cost optimization; a superstructure is proposed to present cogeneration systems and desalination technologies alternatives for the synthesis process. The superstructure consists of excluding components, gas turbines or conventional steam generators with excluding alternatives of supplying fuel for each combustion system. Also, backpressure or condensing/extraction steam turbine for supplying process steam could be selected. Finally one desalination unit chosen between electrically-driven or steam-driven reverse osmosis. multi-effect and multistage flash should be included. The analysis herein performed is based on energy and mass conservation equations, as well as the technological limiting equation of equipment. The results for ten different commercial gas turbines revealed that electrically-driven reverse osmosis was always chosen together with both natural gas and gasified biomass gas turbines. (C) 2009 Elsevier B.V. All rights reserved.

Novel Aspects of the Purpose-Built Materials Strategy: Evidence of Topographic Template Effect and Oriented Attachment Growth Mechanism

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Genetic parameters by Bayesian inference for dual purpose Jaffarabadi buffaloes

Knowledge of genetic parameters is essential for improved reproductive management and increased yield. Quantitative analysis of genetic parameters is lacking for many breeds of buffaloes. This article provides the first estimate of genetic parameters for dual purpose (meat and milk) Brazilian Jaffarabadi buffaloes, using Bayesian inference. Data on milk yield (MY), lactation length (LL), weight at 205 days (W205) and 365 (W365) days of age, and average daily gain (ADG) from 205 to 365 days of age were collected in two herds. Bivariate analyses (using the program MTGSAM) were performed with the Gibbs sampler to obtain estimates of variance and covariance. Average lactation milk yield and lactation length were 1 620.2 +/- 450.9 kg and 257.6 +/- 46.8 days, respectively, and the mean values for weight traits (kg) were 181.6 +/- 63.3 (W205), 298.04 +/- 116.1 (W365), and 0.73 +/- 0.35 (ADG). Heritability estimates (modes) were 0.16 for MY, 0.10 for LL, 0.43 for W205, 0.48 for W365 and 0.32 for ADG. There was a high genetic correlation (0.96) between milk yield and lactation length and very high genetic correlations (0.99) between the three growth traits. Our data suggest that both milk production and growth traits have clear potential for yield improvement through direct selection in this dual purpose breed. The selection for weight at an early age would be successful and selection for MY can be performed in the first lactation.

Características dos enunciados dispersos de uma criança com diagnóstico fonoaudiológico de distúrbio de linguagem

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Hesitações em deslizamentos do dizer de sujeitos parkinsonianos e não-parkinsonianos: um estudo comparativo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

PCN e prática docente de língua portuguesa: articulações possíveis

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Imagens imersivas: estudo sobre a dicotomia proximidade e afastamento no jornalismo visual

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Luz e sombra, mostrar e esconder: os efeitos de sentido e as estratégias da imagem fotográfica em magnum in motion

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A implantação da reforma do ensino de 1º e 2º graus no estado de São Paulo nas páginas da imprensa (1971-1982)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O ponto de vista em semiótica: fundamentos teóricos e ensaio de aplicação em A hora da estrela

Pós-graduação em Linguística e Língua Portuguesa - FCLAR

Saramago, Braff e seus personagens duplos: uma análise comparativa

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Disciplinamento corporal: as relações de poder nas práticas escolares cotidianas

Pós-graduação em Educação - FFC

Um roteiro para a escrita de abstracts de artigos de pesquisa: estrutura retórica e técnicas de argumentação

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O narrador e a construção da ficcionalidade em Juan Saer, Italo Calvino, Ubaldo Ribeiro e Bernardo Carvalho

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)