Performance Evaluation Systems
Mostrando 1-12 de 418 artigos, teses e dissertações.
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1. MGF Methods for Fixed and Gain Saturated Optically Preamplified FSO Links Impaired by Misalignments and Atmospheric Turbulence
Abstract The Gaussian approximation is commonly used to evaluate the performance of free space optical communication systems. However, other performance evaluation methods such as the saddle point approximation, Chernoff bound and the modified Chernoff bound have also been used. This paper investigates the performance of fixed and gain saturated optically pr
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. Performance analysis of the beneficiation process of bauxite from the Juruti Mine. Industrial sampling and performance evaluation
Abstract Sampling campaigns were conducted at the industrial bauxite wash circuit of the Juruti Bauxite Mine in Pará, Brazil. The beneficiation circuit consisted of crushing, scrubber washing, wet screening, hydrocyclone classification, and fltration. Considering laboratory processing of samples and statistical analyses of historical operation databases, ma
REM - International Engineering Journal. Publicado em: 2022
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3. A 2.4 GHz Coplanar Solar Cell Patch Antenna with a Semi-Analytical Evaluation of Temperature Effects
Abstract Solar cells integrated with antennas have aroused scientific interest as an attractive energy source alternative in low power devices for IoT and Wireless Sensor Network applications. Since the space for all components in the systems is scarce, different integration ideas have been proposed in this field. However, further analysis of the performance
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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4. PARAMETERS FOR MODELING PASSIVE SUSPENSIONS OF SPRAY BARS
ABSTRACT The uniformity and quality of spraying depend on the stability of the spray boom, defined as the suspension system between the boom and the machine chassis. This paper presents a procedure for improving the performance of passive spray bar suspensions through parameter adjustment. Two multibody dynamics models of a tractor sprayer set were developed
Eng. Agríc.. Publicado em: 2021-05
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5. The Role of Cardiovascular Risk Factors and Risk Scoring Systems in Predicting Coronary Atherosclerosis
Abstract Background Comparative data on the performance of cardiovascular risk scoring systems (CRSSs) in patients with severe coronary artery disease (CAD) are lacking. Objectives To compare different CRSSs regarding their ability to discriminate patients with severe CAD. Method A total of 414 patients (297 men; 61.3±12.3 years of age) undergoing corona
Int. J. Cardiovasc. Sci.. Publicado em: 2021-02
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6. MACHINE TRANSLATION: A CRITICAL LOOK AT THE PERFORMANCE OF RULE-BASED AND STATISTICAL MACHINE TRANSLATION
Abstract The essay provides a critical assessment of the performance of two distinct machine translation systems, Systran and Google Translate. First, a brief overview of both rule-based and statistical machine translation systems is provided followed by a discussion concerning the issues involved in the automatic and human evaluation of machine translation
Cad. Trad.. Publicado em: 2020-04
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7. Elaboration of an instrument to evaluate the recognition of Brazilian melodies in children
Resumo Introdução: Há evidências que apontam para a importância da avaliação da percepção musical através de instrumentos objetivos e subjetivos. No Brasil, há escassez de instrumentos que avaliem a percepção musical. Objetivo: Desenvolver um instrumento para avaliar o reconhecimento de melodias tradicionais brasileiras e investigar o desempen
Braz. j. otorhinolaryngol.. Publicado em: 13/12/2019
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8. Abordagem das Dificuldades de Ensino e Aprendizagem do Domínio da Estatística na Graduação em Psicologia: um olhar através do contrato didático
Resumo O ensino de conteúdos conceituais, competências e habilidades relacionados à análise quantitativa de dados nos cursos de graduação em Psicologia tem se mostrado problemático. Enquanto domínio da Matemática, a Estatística de fato se distancia dos saberes usualmente trabalhados nas demais disciplinas. O estudo em questão buscou investigar asp
Bolema. Publicado em: 02/12/2019
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9. Evaluation of the Heat and Energy Performance of a Datacenter Using a New Efficiency Index: Energy Usage Effectiveness Design – EUED.
Abstract Data Centers are growing steadily worldwide, and they are expected to continue growing up to 53% in 2020. Energy efficiency, in high power consumption, is a key venue. There are methodologies to measure this efficiency, one example is using the PUE (Power Usage Effectiveness) index. In this paper is proposed a new index for measuring efficiency at
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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10. Evaluation of at-risk infant care: comparison between models of primary health care
RESUMO OBJETIVOS Analisar a rede de cuidados ao bebê de risco na região Oeste do município de São Paulo, tendo a atenção primária à saúde como ordenadora, e comparar a presença e extensão dos atributos da atenção primária à saúde nos serviços prestados, de acordo com o modelo de gestão dos serviços (Estratégia Saúde da Família e unidad
Rev. Saúde Pública. Publicado em: 25/11/2019
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11. Mismatch Negativity in Childrenwith Cochlear Implant
Abstract Introduction The mismatch negativity (MMN) is a negative long-latency auditory potential elicited by any discriminable change in a repetitive aspect of auditory stimulation. This evoked potential can provide cortical information about the sound processing, including in children who use cochlear implants. Objective To identify MMN characteristics
Int. Arch. Otorhinolaryngol.. Publicado em: 07/10/2019
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12. The QualiRede intervention: improving the performance of care continuum in HIV, congenital syphilis, and hepatitis C in health regions
RESUMO Introdução: Modelos de cuidado contínuo baseiam recentes estratégias em HIV, infecções sexualmente transmissíveis e hepatite C (HCV). Métodos: Desenvolveram-se modelos de contínuo do cuidado em HIV, HCV e sífilis congênita incluindo todas as etapas da atenção, desde a promoção e a prevenção até o controle clínico/cura. O modelo ba
Rev. bras. epidemiol.. Publicado em: 26/09/2019