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Application of information theories to safety of nuclear power plants
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges.
2009 (English)In: International Journal of Information Theories and Applications, Vol. 16, no 1Article in journal (Refereed) Published
Abstract [en]

To this date, strategies aiming at a safe operation of nuclear power plants focused mainly on the prevention of technological breakdowns and, more recently, on the human attitudes and behaviors. New incidents and challenges to safety, however, motivated the nuclear community to look for a new safety approach. The solution became a strong focus on knowledge managemen tand associated theories and sciences as information theories, artificial intelligence, informatics ,etc. In all of these, the fundamental role is played by a category of information.

This work reviews a number of information interpretations and theories, among which of great relevance are those capturing the fundamental role information plays as a mean to exercise control on the state of a system, those analysing information communication between agent sinvolved in safety-related activities, and, finally, those which explore the link between information and the limits of our knowledge. Quantitative measures of information content and value are introduced. Completeness, accuracy, and clarity are presented as attributes of information acquired by the receiver. To conclude, suggestions are offered on how to use interpretations and mathematical tools developed within the information theories to maintain and improve safety of nuclear power plants.

Place, publisher, year, edition, pages
2009. Vol. 16, no 1
URN: urn:nbn:se:kth:diva-27498OAI: diva2:377136
QC 20101213Available from: 2010-12-13 Created: 2010-12-13 Last updated: 2010-12-20Bibliographically approved
In thesis
1. Understanding the application of knowledge management to the safety critical facilities
Open this publication in new window or tab >>Understanding the application of knowledge management to the safety critical facilities
2010 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Challenges to the operating nuclear power plants and transport infrastructures are outlined. It is concluded that most aggravating factors are related to knowledge. Thus, of necessity, effective knowledge management is required.

Knowledge management theories are reviewed in their historical perspective as a natural extension and unification of information theories and theories about learning. The first line is identified with names as Wiener, Ashby, Shannon, Jaynes, Dretske, Harkevich. The second line – with Vygotsky, Engeström, Carayannis.

The recent developments of knowledge management theorists as Davenport, Prusak, Drew, Wiig, Zack are considered stressing learning, retaining of knowledge, approaching the state awareness of awareness, and alignment of knowledge management with the strategy of the concerned organizations.

Further, some of the details and results are presented of what is achieved so far. More specifically, knowledge management tools are applied to the practical work activities as event reporting, data collection, condition assessment, verification of safety functions and incident investigation. Obstacles are identified and improvements are proposed.

Finally, it is advised to continue to implement and further develop knowledge management tools in the organizations involved in various aspects of safety critical facilities.

Abstract [sv]

Utmaningar som kärnkraftverken och transportinfrastrukturer står inför har kartlagts. Kartläggningen pekar på att problemen är relaterade till brister i kunskap. Det är därför nödvändigt att fokusera på kunskap och implementera kunskapsmanagement med däri ingående teorier.

Sådana teorier beskrivs i ett historiskt perspektiv. Det framgår att kunskapsmanagement har flera rötter av vilka de viktigaste är informationsteorier och teorier om inlärning. Den första är associerad med namn som Wiener, Ashby, Jaynes, Dretske, Harkevich. Den andra med namn som Vygotsky, Engeström, Carayannis.

Även bidrag från moderna tänkare inom kunskapsmanagement som Davenport, Prusak, Drew, Wiig, Zack utvärderas för att förstå hur de involverade organisationerna kontinuerligt kan lära sig, bevara kunskap, nå medvetande gällande kunskap och integrera kunskapsmanagement med företagsstrategier.

Vidare så presenteras ett urval av resultat för att illustrera vad som har åstadkommits hittills. Kunskapsmanagement-teorier appliceras på verksamheter som erfarenhetsrapportering, databaser, provning, verifiering av säkerhetsfunktioner och utredning av incidenter. Kunskapsmanagement gör det möjligt att identifiera och beskriva brister i de etablerade verksamheterna och att föreslå förbättringar.

Rekommendationen för framtiden är att fortsätta arbetet med implementering och vidareutveckling av kunskapsmanagement för applikationer som är relevanta för kärkraftverk, transportinfrastrukturer och andra säkerhetskritiska anläggningar.

Place, publisher, year, edition, pages
Stockholm: KTH, 2010. x, 23 p.
Trita-BKN. Bulletin, ISSN 1103-4270 ; 105
National Category
Subatomic Physics Building Technologies
urn:nbn:se:kth:diva-27608 (URN)
Public defence
2010-12-15, F3, Lindstedtsvägen 26, KTH, Stockholm, 10:00 (English)
QC 20101214Available from: 2010-12-14 Created: 2010-12-14 Last updated: 2010-12-20Bibliographically approved

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