Electrical systems can be categorized as critical systems where failure can result in significant financial loss, injury or threats to human life. The operators of the electric power control centers perform an activity in a specialized environment and have to carry it out by mobilizing knowledge and reasoning to which they have adequate training under the terms of the existing rules. To reach this there is a common mental request of personnel involved in these centers due the need to maintain attention, memory and reasoning request. In this sense, this study aims to evaluate the Mental Workload of technical workers of the Control Centers of Electrical Energy. It was undertaken a research on operators control centers of the electricity sector in Northeast Brazil. It was used for systematic observations, followed by interview and application of the instrument National Aeronautics and Space Administration Task Load Index known as NASA-TLX. As a result there will be subsidies for an assessment of mental workload of operators, and a contribution to improving the processes of managing the operation of electric utilities and the quality of workers.
Este trabalho tem por objetivo descrever as principais inovações tecnológicas que vêm ocorrendo no setor de fiação da cadeia produtiva da indústria têxtil no Nordeste do Brasil, tomando-se como referência um estudo de caso de uma empresa da região. São descritos o estado da arte e o histórico da evolução da indústria têxtil no Brasil e analisa-se, com base num referencial teórico da cadeia produtiva têxtil, a empresa. Também é apresentada uma visão geral do desenvolvimento tecnológico do setor, o cenário atual e o melhoramento dos seus processos produtivos. Por fim são descritas algumas razões e necessidades que levaram as empresas a se modernizarem utilizando a inovação tecnológica para melhorar a sua produtividade e qualidade dos seus sistemas de produção.
ResumoA Economia de Comunhão (EdC) consiste em direcionar a gestão das empresas a se constituírem como uma comunidade voltada à produção de bens e serviços tendo em vista uma sociedade mais solidária na direção de tornar o modelo de racionalidade e utilitarista econômico mais equilibrado. São apresentadas considerações gerais sobre a gestão das empresas com o foco voltado para a Economia de Comunhão (EdC) analisando os seus fundamentos, características e estruturas básicas. A fim de analisar este tipo de gestão foi realizada uma pesquisa com algumas empresas localizadas no Estado de Pernambuco.Palavras-chave: Economia de Comunhão, Gestão, Responsabilidade Social.
A performance measurement system can be defined as a consistent set of measurements used to quantify the efficiency and efficacy of an organization. Financial and non-financial measurements must be balanced in order to monitor and evaluate the path modern companies must take to promote future performance, suppliers, employees, processes, technology, and innovation. The case study herein analyzed concerns thermal insulation developed from unconventional materials, each with specific properties. The application would occur in the semiarid areas of northeastern Brazil, where the average temperature ranges between 34° and 40°C. The product in question reduces heat transfer between indoor and outdoor areas, and creates a thermally comfortable environment. It also reduces the use of electricity for airconditioning. This paper aims at finding and adapting a performance evaluation model to measure and analyze the performance of new products developed from some unconventional materials, therefore drawing a comparison with similar products already on the market. It is expected that this model generate and organize information that supports decision making.
The electricity sector has resulted in more sophisticated equipment and requires more attention from operators, bringing the monitor and operating a growing set of equipment. This results in increased workload with emphasis on cognitive and environments more conducive to error. The task of an operator, in the Electric Power Control Centers is very complex and specialized situation. They have the basic item, the prevention of incidents and errors that disrupt the operation of the electrical system, or when this is not possible, they attempt to make the process of returning to normal, which is called recovery. They have to do it by mobilizing knowledge and reasoning for which they received training, which, from the point of view of existing rules, are adequate. However, there are some factors that need to be improved because there are still accidents and incidents caused mainly by fatigue, lack of concentration, or inadequate human-computer interface. The aim of this paper is to evaluate workload and ergonomics aspects on the operators in the electric power control centers and analyze whether there are differences in two countries of different continents Brazil and Portugal.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.