Critical Systems Safety
Mostrando 1-12 de 37 artigos, teses e dissertações.
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1. Diagnostic discrepancies between emergency department admissions and hospital discharges among older adults: secondary analysis on a population-based survey
ABSTRACT BACKGROUND: Older adults frequently experience nonspecific clinical features. However, there is limited evidence on how often admission diagnoses for hospitalized older patients are incorrect, potentially leading to treatment delays. OBJECTIVES: To determine the consistency between hospital admission and discharge diagnoses, and identify factors a
Sao Paulo Med. J.. Publicado em: 2020-10
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2. Dynamic risk calculation model applied to gas compressor
Abstract The present article proposes to apply a Risk-Based Maintenance methodology in a gas compression system. This risk calculation is based on a semi-quantitative mathematical model that uses the interdependence of process variables and predictive maintenance data applied in a Condition-Based Maintenance methodology, in order to obtain the calculation of
REM, Int. Eng. J.. Publicado em: 2020-03
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3. A Sustainable Methodology to Extract Bismuth from Secondary Sources
Bismuth is a critical metal broadly used in cosmetic, medicine and metallurgy. However, its scarcity in Earth’s crust may impair further applications. An alternative is to recover bismuth from secondary sources. In this work, a methodology to extract bismuth from safety valves of discharged gas cylinders is proposed. Extraction and purification of bismuth
J. Braz. Chem. Soc.. Publicado em: 24/10/2019
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4. Abuso digital ou prova de amor? O uso de aplicativos de controle/monitoramento nos relacionamentos afetivo-sexuais
Na cultura digital, há um embaralhamento entre as fronteiras do público e do privado, e nos convida a sermos, ao mesmo tempo, controladores e controlados. Este artigo analisou as produções discursivas sobre controle e monitoramento do parceiro veiculadas nas ferramentas digitais ofertadas pelos sistemas Android e iOS, disponíveis nos aplicativos de tele
Cad. Saúde Pública. Publicado em: 21/01/2019
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5. A model for implementation of HACCP system for prevention and control of mycotoxins during the production of red dried chili pepper
Abstract Hazard analysis and critical control points (HACCP) is a process control system describes the potential hazards during food production flow chart. In contrast to the conventional way of ensuring product safety by end-product testing, HACCP establishes control systems, focuses mainly on preventive measures. Quality of red dried chili pepper (RDCP) sh
Food Sci. Technol. Publicado em: 13/03/2017
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6. PRO-ELICERE: A Hazard Analysis Automation Process Applied to Space Systems
ABSTRACT In the last decades, critical systems have increasingly been developed using computers and software even in space area, where the project approach is usually very conservative. In the projects of rockets, satellites and its facilities, like ground support systems, simulators, among other critical operations for the space mission, it must be applied
J. Aerosp. Technol. Manag.. Publicado em: 2016-09
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7. Fault-tolerant state estimation of linear Gaussian systems subject to additive faults
Owing to the need for the satisfaction of attributes such as safety, maintainability, and reliability in modern critical engineering devices, the design of automatic feedback control systems has increasingly demanding fault-tolerant methods. In particular, if the system states cannot directly be measured by the available suite of sensors, a fault-tolerant st
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/08/2011
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8. A utilização de indicadores de contexto na análise de eventos de saúde
Introduction: The idea that the place where we live, in addition to individual characteristics, contributes to outcomes related to health has motivated the implementation of many epidemiological studies. In this perspective, it becomes critical to understand which dimensions of context affect health as well as how health events behave and are influenced by e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/07/2011
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9. Avaliação comparativa entre técnicas de programação defensiva aplicadas a um sistema crítico simulado. / Comparative evaluation among defensive programming techniques applied in a critical system simulated.
The introduction of software systems for critical applications raises safety issues that have long fell predominantly on the development of the hardware composing such systems. Currently, standards related to safety software qualitatively assess the impact of their use on systems sensitive to random errors. The research developed here seeks, in addition to o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/05/2011
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10. Identifying dependability requirements for space software systems
Abstract: Computer systems are increasingly used in space, whether in launch vehicles, satellites, ground support and payload systems. Software applications used in these systems have become more complex, mainly due to the high number of features to be met, thus contributing to a greater probability of hazards related to software faults. Therefore, it is fun
J. Aerosp. Technol. Manag.. Publicado em: 2010-12
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11. Desenvolvimento de um modelo para implantação de Sistema de Gestão Integrado (ISO 22000, ISO 14001, OHSAS 18001, SA 8000) em indústria de pescado. 2010. / Development of a model for implantation of an Integrated Management System (ISO 22000, ISO 14001, OHSAS 18001, SA 8000) in fishery industry. 2010.
The fishery industry represents great importance, because it contributes for the nutritional needs fulfillment by offering consumer market food with high nutritional value, it provides jobs and generates financial resources. In Brazil, in order to cause the activity to grow and it becomes more competitive it should overcome challenges and attend the current
Publicado em: 2010
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12. NONLINEAR DYNAMICS, INSTABILITY AND CONTROL OF STRUCTURAL SYSTEMS WITH MODAL INTERACTION / DINÂMICA NÃO-LINEAR, INSTABILIDADE E CONTROLE DE SISTEMAS ESTRUTURAIS COM INTERAÇÃO MODAL
The aim of this thesis is to study the influence of coupled buckling modes on the static and particularly on the nonlinear dynamic behavior of structural components liable to buckling. For this, two discrete two degrees of freedom models known for their complex nonlinear behavior are selected: the well-known Augusti¿s model and a simplified model of cable-s
Publicado em: 2010