Frequency Variation
Mostrando 25-36 de 995 artigos, teses e dissertações.
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25. Feeding rate and feeding frequency affect growth performance of common snook (Centropomus undecimalis) juveniles reared in the laboratory
ABSTRACT The effects of feeding rate and feeding frequency on the growth of laboratory-reared common snook (Centropomus undecimalis) were evaluated. Juveniles with mean±SD weight of 2.55±0.48 g and total length of 6.81±0.48 cm were divided into groups of 20 fish and reared in 30 polyethylene tanks of 50 L for 60 days. The experimental design was a 3 × 3
R. Bras. Zootec.. Publicado em: 18/03/2019
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26. Physiology of exercise in orofacial motricity: knowledge about the issue
RESUMO Objetivo: investigar sobre o conhecimento de fonoaudiólogos acerca da fisiologia do exercício na motricidade orofacial. Métodos: 38 fonoaudiólogos atuantes em motricidade orofacial no estado de Sergipe, graduados em instituições do ensino superior do Brasil, responderam a onze perguntas fechadas sobre o tipo de exercício, frequência, tempo d
Rev. CEFAC. Publicado em: 14/03/2019
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27. Stability Characteristics of a Model Trim Adjustment System for Open Loop Active Control of Thermoacoustic Instability
ABSTRACT Thermoacoustic instability in liquid rocket engines can have potentially catastrophic consequences. Active control based on feedback promises improved stability margin over a wider range of operating conditions than passive control. In the present work, the thermoacoustic characteristics of a trim adjustment active control system based on variable v
J. Aerosp. Technol. Manag.. Publicado em: 14/01/2019
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28. Continuous Scanning Technique with Barkhausen Magnetic Noise for Carbon Steel Sheets
This work studies the application of a Non-Destructive Inspection Technique (NDIT), based on the Magnetic Barkhausen Noise (MBN), for the detection of non-homogeneous regions in carbon steel plates. It presents the advances in the development of a variant of a new non-destructive magnetic test technique, called Continuous Scanning Magnetic Barkhausen Noise (
Mat. Res.. Publicado em: 10/01/2019
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29. Basal metabolic rate in Brazilian patients with type 2 diabetes: comparison between measured and estimated values
ABSTRACT Objectives: The aims of this study are to investigate which of the seven selected predictive equation for estimating basal metabolic rate (BMR) is the best alternative to indirect calorimetry (IC) and to evaluate the dietary energy intake in patients with type 2 diabetes. Subjects and methods: Twenty-one patients with type 2 diabetes participated
Arch. Endocrinol. Metab.. Publicado em: 2019-01
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30. Available space in feeders for housed sheep: social behavior and performance
ABSTRACT This study was designed to assess the effects of feeding space availability on social behavior and performance of housed crossbreed sheep through the use of three different types of feeders. Thirty-six crossbreed ewes (Santa Inês × Dorper; 2-3 years old) with initial body weight of 34.99±4.28 kg were randomly assigned to a 3 × 3 (feeder type ×
R. Bras. Zootec.. Publicado em: 29/11/2018
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31. No mullet, no gain: cooperation between dolphins and cast net fishermen in southern Brazil
ABSTRACT We report on the interaction between common bottlenose dolphins, Tursiops truncatus (Montagu, 1821) and cast net fishermen in southern coast of Brazil. The fishery was monitored in the mouth of the Tramandaí River Estuary to investigate the seasonality of catches and their relationships with a set of variables: presence/absence and number of bottle
Zoologia (Curitiba). Publicado em: 14/11/2018
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32. GFEM STABILIZATION TECHNIQUES APPLIED TO DYNAMIC ANALYSIS OF NON-UNIFORM SECTION BARS
Abstract The Finite Element Method (FEM), although widely used as an approximate solution method, has some limitations when applied in dynamic analysis. As the loads excite the high frequency and modes, the method may lose precision and accuracy. To improve the representation of these high-frequency modes, we can use the Generalized Finite Element Method (GF
Lat. Am. j. solids struct.. Publicado em: 29/10/2018
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33. Medición del módulo de Young en metales mediante la técnica de excitación por impulso
ABSTRACT The impulse excitation, as non-destructive technique, allows to determine the elastic constants of materials by means of measurement of natural frequency of vibration of bars in different modes, excited by an impact in a point. In this work, the Young’s modulus of copper, aluminum and copper-based alloys samples was determined. The measurements we
Matéria (Rio J.). Publicado em: 19/07/2018
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34. Influence of Stress on Propagation of Shear Wave in Piezoelectric-Piezoelectric (PE-PE) Composite Layered Structure
Abstract Shear waves (SH) propagation in piezoelectric composite under the influence of initial stress is investigated analytically and numerically. The dispersion equation of shear waves propagation in direction normal to the layering is obtained in presence of initial stress. Numerical solutions were obtained for evaluating the effect of stress on dimensi
Lat. Am. j. solids struct.. Publicado em: 23/04/2018
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35. Feedlot performance, feeding behavior and rumen morphometrics of Nellore cattle submitted to different feeding frequencies
ABSTRACT: Owing to the lack of information in the literature about the ideal feeding frequency adopted by feedlot systems, this study was designed to evaluate the effect of different feeding frequencies on performance, carcass traits, feeding behavior and rumen morphometrics of Nellore cattle. Forty-eight yearling bulls were housed in individual pens with an
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-04
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36. HSF1 and HSPA6 as functional candidate genes associated with heat tolerance in Angus cattle
ABSTRACT The purpose of this study was to access and characterize single nucleotide polymorphisms (SNP) located within the HSF1 and HSPA6 candidate genes for adaptability in Angus breed raised in subtropical climate. Samples of DNA from 20 animals representing extreme phenotypes for adaptability traits were obtained. Sequence variations in the candidate gene
R. Bras. Zootec.. Publicado em: 05/03/2018