Topic
System safety
About: System safety is a research topic. Over the lifetime, 6025 publications have been published within this topic receiving 79681 citations.
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TL;DR: In this article, the effect of damping and elastic nature on the control performance of a safety budget-industrial accident rate model in Korea was examined and the effectiveness of such dynamic model in establishing safety policies was shown with a simple proportional-integral (PI) feedback control mechanism.
01 Jan 2004
TL;DR: In this article, the authors present an effective system safety program for the Marshall Space Flight Center (MSFC) using the attributes of an effective organizational and management climate that preceded the Challenger accident and preceded the Columbia accident.
Abstract: The Columbia Accident Investigation Board (CAIB) determined that organizational and management issues were significant contributors to the loss of Space Shuttle Columbia. In addition, the CAIB observed similarities between the organizational and management climate that preceded the Challenger accident and the climate that preceded the Columbia accident. To prevent recurrence of adverse organizational and management climates, effective implementation of the system safety function is suggested. Attributes of an effective system safety program are presented. The Marshall Space Flight Center (MSFC) system safety program is analyzed using the attributes. Conclusions and recommendations for improving the MSFC system safety program are offered in this case study.
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04 Jun 2008TL;DR: In this paper, a system which connects radar sensors directly to one single ECU via an SSC (synchronous serial channel) interface is described, where the ECU runs a signal processing to convert the radar raw data from the sensor into a peak list.
Abstract: This paper describes a system which connects radar sensors directly to one single ECU (electronic control unit) via an SSC (synchronous serial channel) interface. The ECU runs a signal processing to convert the radar raw data from the sensor into a peak list. For tracking a particle filter is used. The introduced system is directed towards pre-crash applications. Such applications inform the driver about dangerous situations. Further, it contributes to avoid accidents or reduce accident severity respectively by interventing into the vehiclepsilas breaking system. The pre-crash application is part of the integral safety system to be developed within the German research project AUTOSAFE.
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TL;DR: The aim of this work is the application of a performance-based approach in the field of the Fire Safety Engineering within the Gran Sasso National Laboratories (LNGS), one of the structures owned and managed by the National Institute for Nuclear Physics (INFN).
Abstract: The aim of this work is the application of a performance-based approach in the field of the Fire Safety Engineering within the Gran Sasso National Laboratories (LNGS), one of the structures owned and managed by the National Institute for Nuclear Physics (INFN). CFD (Computational Fluid Dynamics) models provide a solid foundation on which a complete assessment of the different choices and procedures of evacuation management might be performed. These choices take into account, not only the characteristics of the surrounding environment and the accident scenario, but also the psychological and human aspects induced in people involved in an emergency event. The analysis has been implemented through the development of fire simulation models FDS (Fire Dynamic Simulator of the NIST) applied to new experimental installations, facilities and utilities in one of the LNGS underground areas. The object of the study has been the definition and simulation of a fire caused by an electrical cabinet devoted to the new experimental apparatus named “LUNA-MV” located inside the interferometer tunnel of the LNGS. The analysis addressed the choices in the preliminary design of the safety systems and in the optimization of the technical, economic and design parameters taken into account for each hypothesized event scenario. The work allowed also identifying the crucial factors for reviewing and optimizing the LNGS Emergency Plan, thus providing useful elements to support the LNGS users’ training.
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TL;DR: This article presents fundamental approaches of a new methodology that enables us to specify systems’ security robustness, to describe and classify “weak” points of the systems, to analyze and assessSecurity robustness level, and to find and suggest effective ways of increasing the systems�’security robustness.
Abstract: The operation of a number of technical systems is related to the danger of events’ occurrence posing threat to human health and life, resulting in material damage or damage to the environment. Methods and procedures used for risk management also take into consideration the failure of a human factor as a possible cause of dangerous events’ occurrence, but they do not give us the opportunity to take into account the possible intention of man, who can cause a dangerous event on purpose. In view of the terrorist threat we lack a coherent methodology that would enable us to influence a system’s ability so that consequences of a dangerous event could be reduced or the system could be protected against misuse by its design solution. This ability of a system is called security robustness. This article presents fundamental approaches of a new methodology that enables us to specify systems’ security robustness, to describe and classify “weak” points of the systems, to analyze and assess security robustness level, and to find and suggest effective ways of increasing the systems’ security robustness. The presented methodology is based on the assumption that similarly, as in case of dependability and safety, the assurance of system security robustness should also be an object of systematic attention in all phases of the system life cycle, and that the system security robustness is formed in a crucial manner mainly in the early phases of a life cycle (the so called pre-manufacturing stages – conception, development, design).