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32.867  Articles
1 of 3.288 pages  |  10  records  |  more records»
This paper studies the diagnostic results of hollow ball screws with different ball nut preload through the support vector machine (SVM) process. The method is testified by considering the use of ball screw pretension and different ball nut preload. SVM w... see more

This paper examines the frequency response relationship between the ball screw nut preload, ball screw torsional stiffness variations and table mass effect for a single-axis feed drive system. Identification for the frequency response of an industrial bal... see more

El objetivo del estudio fue determinar la frecuencia de corte que proporcione mayor rendimiento y valor nutritivo en una pradera de ballico perenne (Lolium perenne L.). Los tratamientos fueron tres frecuencias de cortes (2, 4 y 6 semanas) que se distribuy... see more

Introducción: El envejecimiento es un proceso irreversible que genera aumento permanente de la población de 60 o más años. Esta población vulnerable, vive en condiciones de discapacidad, abandono, falta de atención y presenta enfermedades asociadas con su... see more

. In a first experiment, the effect of in vitro incubation with Aspergillus niger (An) on the chemical composition of different fibrous substrates was studied. In a second experiment, the effect of incubation time (0, 72 and 144 h) on in vitro digestion w... see more

Introdução: A significância de se avaliar o consumo dos macronutrientes está no fato destes serem os grupos que fornecem calorias que correspondem à quantidade de energia que nosso corpo possuirá no dia. O que se tem conhecimento é que um estado nutricion... see more

1 of 3.288 pages  |  10  records  |  more records»