Measure Equations
Mostrando 1-12 de 93 artigos, teses e dissertações.
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1. IMPORTANCE OF CROP PRODUCTIVITY AND EQUIPMENT LIFETIME IN THE STRATEGIC AND TACTICAL MANAGEMENT OF SUGARCANE HARVESTERS
ABSTRACT Recently, Brazilian agriculture and the mechanization process have been improved and developed, particularly in sugarcane cultivation. The developed processes should adopt suitable management practices in terms of the technical, economic, and operational logistical aspects. As a management tool, the present study aimed to measure the impact of the a
Eng. Agríc.. Publicado em: 2020-10
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2. New Proposal to Calculate the Friction in Sheet Metal Forming Through Bending Under Tension Test
There are 6 different types of equations that have been formulated to measure friction through the bending under tension test, however, there is no work to show whether these calculations actually represent what is happening in a sheet metal stamping process. This paper aims to make a direct comparison between the bending under tension test and the sheet met
Mat. Res.. Publicado em: 20/01/2020
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3. Effect of Plasma Arc Welding on Residual Stress and Distortion of Thin Titanium Sheet
In this research work, a finite element model is developed to predict the temperature field and residual stress during plasma arc welding of thin Ti-6Al-4V sheets. Dhinakaran’s heat source model which is based on Parabolic Gaussian distribution is used to predict the temperature field and Anand’s model is used to predict the residual stress. Numerical si
Mat. Res.. Publicado em: 20/01/2020
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4. Modelling beef cattle production systems from the Pampas in Brazil to assess intensification options
ABSTRACT Traditional livestock productivity is hard to estimate, since it depends on a gamut of animal production indicators that are difficult to measure for many farms. Thus, we propose an analytical method for estimating productivity and understanding the importance of animal production indicators under different full-cycle cattle production systems in Br
Sci. agric. (Piracicaba, Braz.). Publicado em: 04/11/2019
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5. Prevalence and factors associated to chronic kidney disease in older adults
RESUMO OBJETIVO Verificar a prevalência de doença renal crônica e os fatores a ela associados em idosos (≥ 60 anos). MÉTODOS Trata-se de um inquérito de base populacional realizado em 2014, envolvendo 1.016 idosos residentes nas zonas urbana e rural do município de Rio Branco, Acre. A doença renal crônica foi definida pela taxa de filtração glo
Rev. Saúde Pública. Publicado em: 06/05/2019
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6. Measurement of Strain-Amplitude Dependent Internal Friction with Torsion Pendulum and Vibration Reed Methods
In the traditional standard of internal friction measurement the torsion pendulum and vibration reed were preferentially recommended where the issue of strain amplitude dependence of internal friction was not concerned. To more precisely measure the internal friction and modulus at various strain amplitude, in this paper the strain amplitude dependence of in
Mat. Res.. Publicado em: 28/05/2018
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7. Microwave Measurements of Dielectric Properties of Corn Vegetation at C-Band and Comparison with Debye- Cole Dual Dispersion Model
Abstract Microwave irradiations from vegetation canopy are strongly influenced by its dielectric properties and give useful information for microwave remote sensing -interpretation and applications. This paper reports on the laboratory measurements of dielectric properties of corn vegetation at C-Band frequency. Von Hipple method is used to measure complex d
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2017-12
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8. Evaluation of energy expenditure in forward and backward movements performed by soccer referees
The aim of this study was to measure the energy expenditure for locomotor activities usually performed by soccer referees during a match (walking, jogging, and running) under laboratory conditions, and to compare forward with backward movements. The sample was composed by 10 male soccer referees, age 29±7.8 years, body mass 77.5±6.2 kg, stature 1.78±0.07
Braz J Med Biol Res. Publicado em: 12/04/2016
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9. Development and Evaluation of Calibration Procedure for a Force-Moment Balance Using Design of Experiments
Abstract To measure the aerodynamic and hydrodynamic forces and moments acting on scaled models in water and wind tunnel tests, multi-component strain gauge force and moment balance are usually used. Their performance and accuracy largely depends on the rig and calibration method, including the load table (design matrix) and analysis of experimental data. In
Lat. Am. j. solids struct.. Publicado em: 2016-01
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10. Delineamentos experimentais eficientes para estudos de cinética química
In this paper we show how to obtain efficient designs of experiments for fitting Michaelis-Menten and Hill equations useful in chemical studies. The search of exact D-optimal designs by using local and pseudo-Bayesian approaches is considered. Optimal designs were compared to those commonly used in practice using an efficiency measure and theoretical standar
Quím. Nova. Publicado em: 2014
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11. Dynamic Analysis and critical speed of rotating laminated conical shells with orthogonal stiffeners using generalized differential quadrature method
This paper presents effects of boundary conditions and axial loading on frequency characteristics of rotating laminated conical shells with meridional and circumferential stiffeners, i.e., stringers and rings, using Generalized Differential Quadrature Method (GDQM). Hamilton's principle is applied when the stiffeners are treated as discrete elements. The con
Lat. Am. j. solids struct.. Publicado em: 2013-03
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12. Uma análise do emprego no setor da construção civil nos estados do nordeste brasileiro: qualidade do emprego formal e o retorno da educação
The Construction Industry has gained prominence on the national scene due to its ability to generate employment, and absorb much of the disqualified labor. On that perspective, this research aims to measure the quality of formal employment and quantify the impact of schooling on income of Construction Industry workers in the states of Northeast Brazil. In or
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/09/2012