Design Of Experiments And Statistic Analysis
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Modelos lineares mistos em dados longitudionais com o uso do pacote ASReml-R / Linear Mixed Models with longitudinal data using ASReml-R package
Currently, most part of the experiments installed is designed to be carried out observations over time or at different depths. These experiments usually have a longitudinal factor. One way of analyzing this data set is by using mixed models through means of inclusion of random effect factors, and it is possible to estimate the variance components associated
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/04/2012
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2. Analysis of variance of primary data on plant growth analysis.
Plant growth analysis presents difficulties related to statistical comparison of growth rates, and the analysis of variance of primary data could guide the interpretation of results. The objective of this work was to evaluate the analysis of variance of data from distinct harvests of an experiment, focusing especially on the homogeneity of variances and the
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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3. Study of the acetic bacteria nutritional necessity for the acid production / Estudo das necessidades nutricionais de bacterias aceticas para a produção de acido acetico
The acetical bacteria are used in vinegar production. The nutritional requirement of acetical bacteria is poorly known, and the maintenance of these microorganisms is too difficult. The reactors of submerged acetical fermentation promote conditions of physiologic stress: acidity (up to 10% p/v), alcohol (2%p/v) and oxygenation (0,4 vvm).These parameters are
Publicado em: 2009
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4. VALIDATION OF METHODS FOR WDXRF AND OES-SPARK TECHNIQUES IN STEEL ANALYSIS. DETERMINATION OF THE UNCERTAINTY OF MEASUREMENTS FOR API STEEL PLANT SAMPLE / Validação de métodos para as técnicas de WDXRF e OES -spark, na análise de aços. Cálculo de incerteza de medição para amostras de processo, aço classe API
The increase of gas and petroleum demanding in the national and international markets, the specification and certification of the chemical analysis results of gas and oil pipe-line have became more and more challenging. A continuous development has been outlined to improve API grade alloy steels (American Petroleum Institute). The steel properties depend on
Publicado em: 2009
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5. Aplicação de modelos estatísticos para verificar a influência dos elementos residuais (Cr, Ni e Cu) na usinabilidade de aços de corte-fácil / Application of statistics models to verify the influence of residual elements (Cr, Ni e Cu) in the machinability of free cutting steels
Os aços de corte-fácil são especialmente projetados para oferecer melhores resultados mediante a operação com retirada de cavaco, reduzindo o coeficiente de contato ou atrito com a ferramenta. Em geral, estes aços têm que cumprir baixas especificações em outras características como resistência mecânica, resistência a fadiga e temperabilidade, en
Publicado em: 2006