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The history of launching human beings on launch vehicles began in 1961 with the Soviet Union's orbital launch of Yuri Alekseyevich Gagarin on April 12th and then the US suborbital flight of Alan Shepard on May 12th of that year. The launch of Shepard had been planned originally in October of 1960, and finally scheduled initially for 6 March 1961 would have made the first human in space an American,...
There are several equipment failure databases originating in the nuclear power plant that are successfully used in quantitative risk analysis applications Le, probabilistic safety assessment (PSA). Regulatory bodies (like AERB, India) now accept the importance and use of databases for safety and reliability studies in the nuclear industry as industry practice. Databases containing human error data...
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...
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...
Owing to the complexity of human behaviors in risk situation and the harsh physical environment of underground mine, current researches on coalmine virtual environment have paid little attention on modeling human risk behaviors. Based on Artificial Life method, an intelligent virtual miner agent model was proposed to yield better understandings of human factors in emergency situation and to assist...
Algae have been proven to be a severe health hazard to humans, aquatic and semi-aquatic animals. Chemical methods available to control the algae have unwanted side-effects. For this reason, ultrasonic algae control has been under investigation. We measured the eradication effectiveness of ultrasound at three typical centre frequencies. At all three frequencies physical damage to the algae was observed...
Process Failure Mode and Effects analysis (PFMEA) is a technique to identify, analyze and evaluate the potential failure modes of a production process. The purpose is to suggest control measures to reduce the risk of the production process effectively. NASA has used the PFMEA technique to analyze human processes or tasks. This type of analysis can be referred to as a "human factors process FMEA,...
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