Preventive Maintenance
Mostrando 13-24 de 68 artigos, teses e dissertações.
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13. Participation in proficiency programs and promotion of quality in transfusion services of Minas Gerais
OBJECTIVE: This study aimed at identifying associations between the participation of transfusion services in immunohematology external quality control programs and their accuracy in immunohematology testing and adaptation to technical and legal operational procedures. METHODS: From 2007 to 2009, a cross-sectional study was conducted in 219 transfusion servic
Revista Brasileira de Hematologia e Hemoterapia. Publicado em: 2012
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14. AplicaÃÃo da metaheurÃstica tabu search na otimizaÃÃo de rotas de manutenÃÃo preventiva em campo / Application of the metaheuristic Tabu Search to the on field preventive maintenance routes optmization
O objetivo deste trabalho foi propor uma aplicaÃÃo baseada na metaheurÃstica Busca Tabu (TS) para ser utilizada em serviÃos de manutenÃÃo preventiva em campo (FPMS) a fim de obter maior eficiÃncia logÃstica, atravÃs do roteamento de setores de manutenÃÃo. Ao contrÃrio dos serviÃos realizados na indÃstria, onde todos os sistemas, mÃquinas e equ
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/12/2011
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15. Estimador de variações de tensão de curta duração em sistemas elétricos de potência utilizando estratégias evolutivas. / Estimate short duration voltage variation using evolutionary strategies.
A methodology is herein proposed to estimate Short Duration Voltage Variation (SDVV) in electric power systems, caused by electrical faults. To attain this target, values recorded by measurement equipment in specific sites are used. In fact, there are few power quality meters installed in power networks, due to the high cost of such meters. Although these co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/09/2011
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16. Condition based maintenance applied to an air conditioning system as a prerequisite for office building sustainability. / Manutenção baseada em condição aplicada a um sistema de ar condicionado como requisito para sustentabilidade de edifício de escritórios.
Due to extensive extraction of natures resources, extinction of species, emission of gases into the atmosphere, water and power consumption, to climatic changes of the planet, mankinds impact on earth requires containment and preservation of the environment. The future of humanity is being questioned and something must be done. Responsible for the consumptio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/09/2011
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17. Anticorpos contra vírus do grupo da língua azul em caprinos e ovinos do sertão de Pernambuco e inferências sobre sua epidemiologia em regiões semiáridas
The prevalence of antibodies against bluetongue virus was investigated in 41 dairy goats and 40 sheep herds in the semi-arid region of Pernambuco state and the conditions for insect Culicoides maintenance, considering climate dynamics and vector competence, were evaluated. The percents of seropositive herds in agar gel immunodiffusion test for bluetongue vir
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2011-12
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18. Manutenção prescrita e manutenção real: uma abordagem baseada na atividade dos profissionais: o caso de uma indústria automobilística
This study aims to present the determinants of activity in real situations, characterized by variability and unpredictability inherent in production systems, as well as understanding and relevance of the requirements developed with the effective participation of professionals. With this purpose, we studied the activities of professionals (mechanics and elect
Publicado em: 2011
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19. Estudo da técnica de ondas de tensão como instrumento de avaliação interna de árvores urbanas
Arborization is fundamental in urban spaces, due to the significant benefits it provides. To important issue to guarantee the adequacy of the role it plays is its maintenance. To this purpose, an application of preventive methods of diagnosis is recommended, allowing the evaluation of external and internal conditions of tress. Currently, the analysis of urba
Publicado em: 2011
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20. Avaliação de uma fábrica de ração para aves: instalações, processos e produto final / Evaluation of a feed mill for poultries: installation, process, and final product
The work of research aimed to characterize and analyze qualitatively and quantitatively a feed mill for poultries. For this, an initial study to evaluate the feed mill using the manual of Good Manufacture Practice of Feed and the international norm of quality management ISO 9000:2000. The results verified that the feed mill did not respond in full the mentio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/10/2010
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21. Fatores de risco no ambiente do trabalho de enfermagem em um hospital universitário / Risk factors in the work environment of nursing in a university hospital
This research was carried out in a Rio de Janeiro State University Hospital through a descriptive quantitative approach. The aim of this study was to identify environmental risk factors in nursing professionals work situations from the systematic observation of the workplaces by the health and workplace safety professionals and by the head nurses of a Univer
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/03/2010
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22. Predição em modelos de tempo de falha acelerado com efeito aleatório para avaliação de riscos de falha em poços petrolíferos
We considered prediction techniques based on models of accelerated failure time with random eects for correlated survival data. Besides the bayesian approach through empirical Bayes estimator, we also discussed about the use of a classical predictor, the Empirical Best Linear Unbiased Predictor (EBLUP). In order to illustrate the use of these predictors, we
Publicado em: 2010
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23. Conselho de salubridade pública de Pernambuco : um olhar médico sobre a cidade do Recife entre os anos de 1845-1850
This scholarly work examines the purpose of the Board of Public Health Protection of Pernambuco to impact on the reef, through instructions to the President of the Province, between the years 1845 and 1850, aiming at its transformation into a city "modern" and "civilized." The Council as an institution Scientific Advisory reflecting the ideals of European do
Publicado em: 2010
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24. Estudo do comportamento mecânico de dutos de aço com reparos compósitos hibridos / Mechanical behavior of steel pipes repaired with a hybrid laminate
Worldwide, steel pipes play an important role in many industrial sectors. Meanwhile, any kind of duct is prone to suffer superficial damages due to corrosion. In this sense, techniques which allow fast and reliable repairs of ducts have a fundamental importance to increase the life cycle, avoid accidents, minimize environmental contaminations and to keep the
Publicado em: 2010