Time Dependent Unavailability Analysis of Nuclear Safety Systems

1977 ◽  
Vol R-26 (4) ◽  
pp. 257-260 ◽  
Author(s):  
W.E. Vesely ◽  
F.F. Goldberg
Keyword(s):  
Nuclear Safety ◽  
Time Dependent ◽  
Safety Systems

AN OBJECT-ORIENTED SECURITY KNOWLEDGE FRAMEWORK FOR THE NUCLEAR SAFETY SYSTEM PROJECT

2010 ◽  
Vol 20 (03) ◽  
pp. 347-365
Author(s):  
I-HSIN CHOU ◽  
CHIN-FENG FAN
Keyword(s):  
Explicit Knowledge ◽  
Object Oriented ◽  
Nuclear Safety ◽  
Nuclear Industry ◽  
Security Requirements ◽  
Knowledge Framework ◽  
Security Controls ◽  
Software Engineers ◽  
Systems Security Engineering ◽  
Safety Systems

As computers are used in nuclear safety systems, security engineering is becoming more and more important in the nuclear industry. Like all highly technical endeavours, the development of nuclear safety systems is a knowledge intensive task. Unfortunately, not only do nuclear scientists and software engineers lack the security knowledge, they are also not familiar with the new security requirements. Besides, few young people are studying nuclear science, nuclear engineering and related fields. Therefore, knowledge management can play a central role in encapsulating, storing and spreading the related discipline and knowledge more efficiently in the nuclear industry. In this paper, we propose a security knowledge framework to gather and store security knowledge from those regulatory-based security activities. We adopt an object-oriented paradigm which is easy for software engineers to understand and to express tacit and explicit knowledge. Its aim is intended to decouple between platform-independent security knowledge and platform-specific security controls. Finally, an example is presented to demonstrate the feasibility of linking between security controls and knowledge ontology in our framework.

scholarly journals Assessment of Crisis Preparedness Resourcing to Stress Tests

2018 ◽  
Vol 13 (1) ◽  
pp. 8-14
Author(s):  
Lenka Maléřová ◽  
Vilém Adamec ◽  
Romeu Da Silva Vicente ◽  
Jakub Brumar
Keyword(s):  
Czech Republic ◽  
Nuclear Safety ◽  
Real Case ◽  
Stress Tests ◽  
Crisis Preparedness ◽  
The Czech Republic ◽  
The Real ◽  
Reliable Solution ◽  
Safety Systems

Abstract Crisis preparedness of territorial units, as well as individual elements of their safety systems, can be verified in different ways. In the Czech Republic screening exercises are often used for these purposes. Testing exercises should take place in conditions as similar as possible to the real case scenarios. However, this is often not possible for different reasons (e.g. considerable costs associated to practicing actions). One option is the use of stress tests that are presently used (e.g. nuclear safety). The aim of this article is to highlight and discuss this issue and outline the possible approach to reliable solution.

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