Linear Quadratic Control
Mostrando 1-12 de 84 artigos, teses e dissertações.
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1. Foliar application of molybdenum on cover crops and response of common beans in successive cultivation
ABSTRACT The effects of foliar application of Mo and use of N from cover crops (Crotalaria juncea L. and Canavalia ensiformis (L.) DC) on the performance of common beans were investigated in this study. Field experiments were carried out in a succession planting system (cover crops - common beans), and nitrate reductase activities were evaluated in the labor
Rev. Ceres. Publicado em: 2020-02
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2. Effect of Artemisia apiacea Hance on growth performance, cecal opportunistic bacteria, and microbicidal peptides in rabbits
ABSTRACT This study aimed to investigate the effect of Artemisia apiacea Hance supplementation on growth performance, cecal opportunistic bacteria, and antimicrobial defense using 120 rabbits. There were four experimental diets containing a control and A. apiacea Hance added at doses of 25, 50, and 75 g kg−1 of feed. The trial lasted for 70 days. The resul
R. Bras. Zootec.. Publicado em: 28/11/2019
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3. Vibration control device for steel tubular towers of Horizontal Axis Wind Turbines
Abstract This paper presents and discusses the design of a vibration control device for a 120 m high steel tubular tower of onshore Horizontal Axis Wind Turbine (HAWT). The tower is modeled using beam (own code), and shell and solid finite elements (via ANSYS). The Dynamic Vibration Absorber (DVA) is designed to be attached to the tower top, aiming to analyz
Lat. Am. j. solids struct.. Publicado em: 10/07/2019
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4. ESTIMATIVAS DE PARÂMETROS GENÉTICOS E DE AMBIENTE PARA MEDIDAS REPETIDAS DE PRODUÇÃO LEITEIRA EM CAPRINOS
Resumo Objetivou-se com este estudo comparar funções matemáticas no ajuste da curva de lactação média e individual de caprinos e estimar parâmetros genéticos e ambientais para medidas repetidas de produção de leite. Foram utilizadas 183 lactações, sendo 121 de cabras Saanen e 62 de cabras Alpinas, de animais pertencentes ao Laboratório de Caprin
Ciênc. anim. bras.. Publicado em: 10/06/2019
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5. Use of water-treated black tea waste instead of wheat bran in laying hen diets
ABSTRACT We assessed the effects of different amounts of water-treated black tea waste (BTW) in the diets of laying hens on performance, egg quality, yolk peroxidation, and blood parameters in this study. The experiment lasted for 12 weeks, during which a total of 108 Lohman layers, of 24 weeks old, were randomly allocated to one of six dietary treatments (1
R. Bras. Zootec.. Publicado em: 29/11/2018
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6. Effects of two sources of Mexican oregano oil on performance, blood profile, carcass variables, and meat of broilers
ABSTRACT The current study was conducted to investigate the effects of Mexican oregano essential oil (MOO) extracts from Lippia berlandieri Schauer (LBS) and Poliomintha longiflora Gray (PLG) on performance, blood profiles, carcass variables, and meat composition of broilers at slaugther. A total of 360 one-day-old Ross broilers were randomly distributed int
R. Bras. Zootec.. Publicado em: 16/07/2018
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7. Principal Component Analysis with Linear and Quadratic Discriminant Analysis for Identification of Cancer Samples Based on Mass Spectrometry
Mass spectrometry (MS) is a powerful technique that can provide the biochemical signature of a wide range of biological materials such as cells and biofluids. However, MS data usually has a large range of variables which may lead to difficulties in discriminatory analysis and may require high computational cost. In this paper, principal component analysis wi
J. Braz. Chem. Soc.. Publicado em: 2018-03
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8. Crude glycerin in anaerobic co-digestion of dairy cattle manure increases methane production
ABSTRACT Anaerobic digestion of crude glycerin (CG) along with animal waste has been an excellent option for increasing the production of biogas and methane to achieve efficiency in the treatment of both residues. This study aimed to evaluate improvements in specific productions of biogas and methane, reductions in solid and fibrous components in substrates
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-06
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9. MULTIVARIABLE OPTIMAL CONTROL OF A HEAT EXCHANGER NETWORK WITH BYPASSES
Abstract Heat exchanger networks present an interesting control problem due to coupling among process streams. In this work, the linear quadratic regulator (LQR), a feedback optimal control technique, is used to control stream temperatures on a laboratory scale heat exchanger network, through bypass manipulation, in a multivariable system. The LQR design was
Braz. J. Chem. Eng.. Publicado em: 2016-03
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10. Optimal Placement of Piezoelectric Macro Fiber Composite Patches on Composite Plates for Vibration Suppression
AbstractThis work presents a new methodology for the parametric optimization of piezoelectric actuators installed in laminated composite structures, with the objective of controlling structural vibrations. Problem formulation is the optimum location of a Macro Fiber Composite (MFC) actuator patch by means the maximization of the controllability index. The co
Lat. Am. j. solids struct.. Publicado em: 2015-05
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11. Poultry offal meal in broiler chicken feed
An outstanding feature of poultry production that provides animal protein yield for human feeding is its short production cycle. This characteristic has a linear relationship with waste production. Increasing the inclusion of this residue in diets in the near future is desirable in step with the growth of poultry production since it offers a better environme
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-06
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12. Losses through gases and effluent and nutritional value of Brachiaria decumbens with addition of soybean hulls
The objective of this experiment was to evaluate the losses of nutrient through gases and effluents, the nutrient recovery, fermentation parameters and the chemical parameters of silages of Brachiaria decumbens with the addition of soybean hulls, testing five levels of inclusion: 0, 10, 20, 30 and 40% (as is), with five replications per treatment. After the
R. Bras. Zootec.. Publicado em: 2014-05