Polynomial Reduction
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. FUZZY MODELING OF THE EFFECTS OF DIFFERENT IRRIGATION DEPTH IN RADISH CROP. PART II: BIOMETRIC VARIABLES ANALYSIS
ABSTRACT In order to estimate the response of biometric variables in different irrigation depths in radish crop, as well as their relations in the development of the crop, a fuzzy mathematical analysis was carried out from irrigation with depths of different percentages of the crop evapotranspiration (ETc), using Gaussian pertinence functions for the input v
Eng. Agríc.. Publicado em: 2021-05
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2. ESTRUTURA DO DOSSEL E COMPORTAMENTO INGESTIVO DE CAPRINOS EM PASTOS DE PAPUÃ MANEJADOS SOB LOTAÇÃO CONTÍNUA
Resumo O objetivo deste estudo foi descrever a estrutura do dossel e o comportamento ingestivo de caprinos em pastos de papuã manejados sob lotação contínua. Os tratamentos corresponderam a quatro alturas de manejo (10, 20, 30 e 40 cm) mantidas através de taxa de lotação variável. As variáveis analisadas foram: composição morfológica, massa e den
Ciênc. anim. bras.. Publicado em: 13/12/2019
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3. A NOVEL MODEL FOR ORIENTATION OF LINEAR OPTICAL SATELLITE IMAGES BASED IN THE ADAPTATION OF THE ORBIT-ATTITUDE MODEL
Abstract In this paper a novel model to orient a pushbroom linear optical satellite image is proposed. This one is based in the adaptation of the Orbit-Attitude model for use of the Modified UCL Kepler platform model. It has only the components of satellite position and velocity as unknowns. This implies not only the reduction of unknowns but also the elimin
Bol. Ciênc. Geod.. Publicado em: 14/10/2019
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4. Herbage intake by cattle in kikuyugrass pastures under intermittent stocking method
RESUMO Dois experimentos complementares foram conduzidos para investigar as relações entre a estrutura do dossel de pastagens de Pennisetum clandestinum (capim-quicuiu) criadas por estratégias de lotação intermitente e o consumo de forragem por bovinos. O primeiro (Exp. I) avaliou o efeito de diferentes alturas em pré-pastejo (10, 15, 20 e 25 cm) assoc
Rev. Ciênc. Agron.. Publicado em: 04/07/2019
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5. Trends in suicide rates in Brazil from 1997 to 2015
Objectives: To analyze time trends of suicide rates in Brazil overall and in Brazilian states and compare the estimated suicide rates projected for 2020 with the World Health Organization (WHO) Mental Health Action Plan target. Methods: This was an ecological time-series study from 1997 to 2015, stratified by Brazilian states, specific age groups, and sex.
Braz. J. Psychiatry. Publicado em: 18/02/2019
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6. Mortalidade por doenças cerebrovasculares em idosos e a vacinação contra a influenza: Estado de São Paulo, Brasil, 1980-2012
Este estudo descreve a tendência dos coeficientes de mortalidade por doenças cerebrovasculares (DCbV) em idosos no Estado de São Paulo, Brasil, entre 1980 e 2012, antes e depois das campanhas de vacinação contra a influenza, e identifica pontos de mudanças. Trata-se de um estudo ecológico de série temporal, realizado com dados de óbitos do Sistema d
Cad. Saúde Pública. Publicado em: 18/02/2019
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7. Influence of nails size and layout to obtain the reduction coefficient of moment of inertia for timber beams with composite cross section
ABSTRACT A significant portion of rural building’s roof is supported by timber trusses. Increasing distance between the trusses can be achieved by using composite cross sections ("T" and "I") for beams. With this, it is possible to reduce the number of columns and trusses, bringing significant savings in material and the desired cost reduction, mainly usin
Eng. Agríc.. Publicado em: 2016-08
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8. HIGHLY-ACCURATE MODEL ORDER REDUCTION TECHNIQUE ON A DISCRETE DOMAIN
Abstract In this work, we present a highly-accurate technique of model order reduction applied to staged processes. The proposed method reduces the dimension of the original system based on null values of moment-weighted sums of heat and mass balance residuals on real stages. To compute these sums of weighted residuals, a discrete form of Gauss-Lobatto quadr
Braz. J. Chem. Eng.. Publicado em: 2015-09
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9. Performance and carcass yield of broilers supplemented with plant extract during the finisher phase
In this study, 600 one-day-old male Cobb 500 broilers were distributed according a completely randomized experimental design into the different dietary treatments. Broilers were fed the following dietary treatments: positive control diet (PC), containing 54 ppm zinc bacitracin; negative control diet (NC), with no inclusion of performance enhancers and 3% red
Rev. Bras. Cienc. Avic.. Publicado em: 2014-12
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10. A note on the NP-hardness of the separation problem on some valid inequalities for the elementary shortest path problem
In this paper, we investigate the separation problem on some valid inequalities for the s - t elementary shortest path problem in digraphs containing negative directed cycles. As we will see, these inequalities depend to a given parameter k ∈ ℕ. To show the NP-hardness of the separation problem of these valid inequalities, considering the parameter k ∈
Pesqui. Oper.. Publicado em: 2014-04
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11. The improved arrhenius model with variable parameters of flow behavior characterizing for the as-cast AZ80 magnesium alloy
In order to study the hot working behaviour of as-cast AZ80 magnesium alloy, a series of isothermal upsetting tests with height reduction of 60% were performed at the temperature range of 523-673 K and the strain rate range of 0.01-10 s-1 on a servo-hydraulic Gleeble-1500 machine simulator. Based on the regression analysis for Arrhenius type equation of flow
Mat. Res.. Publicado em: 14/05/2013
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12. Mathematical modeling of emulsion copolymerization process of butyl acrylate and vynil acetate. / Modelagem matemática do processo de copolimerização em emulsão de acrilato de butila e acetato de vinila.
Polimeric materials have been largely used and, today, more stringent specifications have been imposed to these materials for special applications. In general, microstructure exercises intense influence on the macroscopic properties of the polymer: therefore, the control of the microstructure and its relation with these properties is of strategic interest. M
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/04/2011