Safety Assessment Process Optimization for Integrated Modular Avionics

2019 ◽  
Vol 34 (11) ◽  
pp. 58-67 ◽  
Author(s):  
Yunsheng Wang ◽  
Hang Lei ◽  
Richard Hackett ◽  
Martin Beeby
Keyword(s):  
Process Optimization ◽  
Safety Assessment ◽  
Assessment Process ◽  
Integrated Modular Avionics

Composition of Safety and Cyber Security Analysis Techniques and Tools for NPP I&C System Assessment

2020 ◽  
pp. 204-220
Author(s):  
Ievgen Babeshko ◽  
Kostiantyn Leontiiev
Keyword(s):  
Cyber Security ◽  
Nuclear Power ◽  
Safety Assessment ◽  
Security Analysis ◽  
Assessment Method ◽  
Assessment Methods ◽  
Assessment Process ◽  
Safety Level ◽  
Methods And Techniques ◽  
And Control

Safety assessment of nuclear power plant instrumentation and control systems (NPP I&Cs) is a complicated and resource-consuming process that is required to be done so as to ensure the required safety level and comply to normative regulations. A lot of work has been performed in the field of application of different assessment methods and techniques, modifying them, and using their combinations so as to provide a unified approach in comprehensive safety assessment. Performed research has shown that there are still challenges to overcome, including rationale and choice of the safety assessment method, verification of assessment results, choosing and applying techniques that support safety assessment process, especially in the nuclear field. This chapter presents a developed framework that aggregates the most appropriate safety assessment methods typically used for NPP I&Cs.

scholarly journals The Safety Assessment Process—Setting the Scene: An FDA Perspective

ILAR Journal ◽  
2002 ◽  
Vol 43 (Suppl_1) ◽  
pp. S5-S10 ◽  
Author(s):  
Leonard M. Schechtman
Keyword(s):  
Safety Assessment ◽  
Assessment Process

Deterministic Risk Methodology for Road Tunnels

2008 ◽  
Author(s):  
Peter Vidmar ◽  
Stojan Petelin
Keyword(s):  
Safety Assessment ◽  
Calculated Data ◽  
Assessment Process ◽  
Strong Impact ◽  
Road Tunnel ◽  
Risk Matrix ◽  
Tunnel Length ◽  
Fire Dynamics ◽  
Road Tunnels ◽  
Ventilation Conditions

The definition of the deterministic approach in safety analyses arises from the need to understand the conditions that emerge during a fire accident in a road tunnel. The key factor of the tunnel operations during the fire is the ventilation, which during the initial phases of the fire have a strong impact on the evacuation of people and later on the access of the intervention units in the tunnel. The paper presents the use of the CFD model in the tunnel safety assessment process. The set-up of the initial and boundary conditions and the requirement for grid density found from validation tests of an FDS (Fire Dynamics Simulator) is used to prepare three kinds of fire scenarios, 20MW, 50MW and 100MW, with different ventilation conditions; natural, semi transverse, transverse and longitudinal ventilation. The observed variables, soot density and temperature, are presented in minutes time steps through the entire tunnel length. Comparing the obtained data in a table allows the analyses of the ventilation conditions for different heat releases from fires. The second step is to add additional criteria of human behaviour inside the tunnel (evacuation) and human resistance to the elevated gas concentrations and temperature. What comes out is a fully deterministic risk matrix that is based on the calculated data where the risk is ranged on five levels, from the lowest to a very dangerous level. The deterministic risk matrix represents the alternative to a probabilistic safety assessment methodology, wherein the fire risk is represented in detail and the CFD (Computational Fluid Dynamics) model results are physically correct.

scholarly journals Safety Assessment for Spatial Development

2013 ◽  
Vol 32 (2) ◽  
Author(s):  
David Řehák ◽  
Kateřina SikorovÁ ◽  
Pavel Senovský
Keyword(s):  
Risk Analysis ◽  
Safety Assessment ◽  
Software Tool ◽  
Vulnerability Index ◽  
Spatial Development ◽  
Assessment Process ◽  
Negative Effects ◽  
Impact Index ◽  
Online Software

AbstractRehak D., Sikorova K., Senovsky P.: Safety assessment for spatial development. Ekologia (Bratislava), Vol. 32, No. 2, p. 220-241, 2013.The article deals with the problems of operable safety assessment for spatial development to promote the preventive protection of population, engineering infrastructure and the environment against negative effects of spatial development. At present, many methods available for semi-quantitative risk analysis exist, but there is no method completely suitable for assessment of risks associated with spatial development. This is why a new method - Spatial Development Impact Assessment, which is based philosophically on the Fire & Explosion Index, Hazard & Vulnerability Index and Hazard & Impact Index - is presented in the article. The article describes the main tools of this method, namely assessment process algorithm, catalogue of hazard and asset groups and spatial development impact matrix. It demonstrates, by a case study on the safety assessment for spatial development using an online software tool developed for this purpose, the application of the method.

Trends in Scenario Development Methodologies and Integration in NUMO’s Approach

2010 ◽  
Author(s):  
Takeshi Ebashi ◽  
Katsuhiko Ishiguro ◽  
Keiichiro Wakasugi ◽  
Hideki Kawamura ◽  
Irina Gaus ◽  
...  
Keyword(s):  
Safety Assessment ◽  
International Workshop ◽  
Assessment Process ◽  
Scenario Development ◽  
Top Down ◽  
Initial State ◽  
Bottom Up ◽  
Starting Point ◽  
Consistent Treatment

The development of scenarios for quantitative or qualitative analysis is a key element of the assessment of the safety of geological disposal systems. As an outcome of an international workshop attended by European and the Japanese implementers, a number of features common to current methodologies could be identified, as well as trends in their evolution over time. In the late nineties, scenario development was often described as a bottom-up process, whereby scenarios were said to be developed in essence from FEP databases. Nowadays, it is recognised that, in practice, the approaches actually adopted are better described as top-down or “hybrid”, taking as their starting point an integrated (top-down) understanding of the system under consideration including uncertainties in initial state, sometimes assisted by the development of “storyboards”. A bottom-up element remains (hence the term “hybrid”) to the extent that FEP databases or FEP catalogues (including interactions) are still used, but the focus is generally on completeness checking, which occurs parallel to the main assessment process. Recent advances focus on the consistent treatment of uncertainties throughout the safety assessment and on the integration of operational safety and long term safety.

Profiling of mushrooms using a UHPLC/UV/ELSD/HRMS dereplication protocol: A component of the safety assessment process

Planta Medica ◽  
2014 ◽  
Vol 80 (10) ◽  
Author(s):  
T El-Elimat ◽  
TN Graf ◽  
TR Baker ◽  
JG Little ◽  
NH Oberlies
Keyword(s):  
Safety Assessment ◽  
Assessment Process

scholarly journals An Approach to Health and Safety Assessment in Industrial Parks

2020 ◽  
Vol 12 (9) ◽  
pp. 3646
Author(s):  
Fco. Javier García-Gómez ◽  
Cristina González-Gaya ◽  
Víctor Fco. Rosales-Prieto
Keyword(s):  
Risk Assessment ◽  
Safety Assessment ◽  
Safety Management ◽  
Health And Safety ◽  
Assessment Process ◽  
Management Systems ◽  
Fundamental Aspect ◽  
Know How ◽  
Industrial Parks ◽  
Design Construction

Safety is a fundamental aspect to take into account in the design, construction and operation of industrial parks. Therefore, it is important to know how to deal with safety in this type of facility, and how to deal with risk analysis. This document provides information related to the industrial park risk assessment process to improve the health and safety of workers in these places. A search and consultation of references related to occupational health and safety management systems is carried out, and it is found that, although there is adequate protection, both in relation to the safety of workers in industrial parks and the safety of personnel outside the facilities, it is helpful to establish a health and safety risk assessment to identify hazards and hazardous events, evaluate associated risks, and select techniques or strategies (opportunities) to manage those risks after prioritization. Following the implementation of the selected techniques, their effectiveness can then be monitored in order to avoid incidents. This document can be a model for future implementation of a health and safety management system based in ISO 45001:2018.

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