Hazard preparedness has become a critical issue for local populations who are potentially vulnerable to natural disasters. Essential to preparedness planning is determining where people are likely to be located, which varies from day to night. The fundamental approaches to geographic scale and cartographic representation are an integral aspect of how population distribution is represented over ...

investigation of reliability characteristics under fuzzy environments is proposed in this paper. fuzzy weibull distribution and lifetimes of components are using it described. formulas of a fuzzy reliability function, fuzzy hazard function and their α-cut set are presented. furthermore, the fuzzy functions of series systems and parallel systems are discussed, respectively. finally, some numeric...