The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
To solve the difficulties in the safety risk decision of the military aircrafts based on full life cycles, a military aircraft safety risk evaluation model was established on the basis of “human-machine” and “environment-machine”. A grey fuzzy analytic network process was also proposed for the insufficiencies of current safety risk decision methods used in the research and development of military...
Disastrous and traffic incidents have serious impact on the operation risk of major highway infrastructure, and risk calculation method is the basis for its safety management decision. Based on analysis of safety factors of major highway infrastructure, a combined method coupling fuzzy algorithm and Bayesian network is presented to calculate its operation risk under various events, in which fuzzy...
Comparing risks of rare, high consequence events poses serious challenges to social decision making as well as deep methodological and epistemological problems. It is necessary to assess the merits of countermeasures that are only useful in extremely unlikely circumstances. The value of a conventional conditional probability P(A|B)=P(A∩B)/P(B) becomes too uncertain to be useful when P(B) is not well...
The risk analysis of highway traffic safety is a uncertainty system problem. Based on the theory of set pair analysis, stochastic simulation of triangular fuzzy numbers, herein a risk analysis model for the highway traffic safety was discussed. A concept of multi-element connection number of the set pair, which was consisted of evaluation index sets and classification standard sets of the highway...
By analyzing the module and concrete items of risks in ship pilotage, applying Grey theory analysis, brings forward the Grey Theory Analysis Model in ship pilotage risks analysis, Moreover, fuzzy function is taken in the analysis of relative risk factors, achieving the optimal relational coefficient of piloting risk factors, and finally obtaining the relational degree taxis. As indicated in the computing...
The construction of highway tunnel is a subsystem of construction system that including building construction and mining production characteristics. This paper proposed a new method that combining principal component analysis (PCA) with fuzzy comprehensive evaluation (FCE) and the mathematics method is used separately to evaluation single factors and to carryout synthesis assessment in the safety...
Building fire risk evaluation is the base of building fire risk management. Carrying out building fire risk evaluation can effectively prevent and control the building fire accident occurring. In this study, a fuzzy approach to building fire risk assessment methodology using the fuzzy comprehensive evaluation (FCE) and synthetic weights provided to assist decision-makers in determining the proper...
Protecting the security of the dam is a vital problem for the reasonable use of the water resources, so it is important and meaningful to research methods of assessing the safety of dam for which is related with the national economy and the people's livelihood, and it is necessary to build a system to estimate the security risk of dams. The dam failure disaster risk is regarded as main researching...
Starting with the theory and research status on the information security risk assessment, this paper puts forward information security risk evaluation method based on analytic hierarchy process and fuzzy comprehensive evaluation, and solves the difficulty of the qualitative index and quantitative evaluation in the risk assessment process. Finally, it gives examples to prove that this method can be...
To investigate the safety of route flight in air traffic management, the collision risk is evaluated with the fuzzy sets theory. The new fuzzy evaluation method shows how the communication, navigation, surveillance, operation error, and traffic density influence the risk of collision in the parallel routes. The results demonstrate that fuzzy evaluation not only fulfill the safety assessment of separation...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.