In this paper we propose a fuzzy Laplace transform and under the strongly generalized differentiability concept, we use it in an analytic solution method for some fuzzy differential equations (FDEs). The related theorems and properties are proved in detail and the method is illustrated by solving some examples.
In this paper, Adomian method has been applied to approximate the solution of fuzzy volterra-fredholm integral equation. That, by using parametric form of fuzzy numbers, a fuzzy volterra-fredholm integral equation has been converted to a system of volterra-fredholm integral equation in crisp case. Finally, the method is explained with illustrative examples.
Changing the attitude and behavior of the society relate to the importance of environment is necessary for continuing the life. Among the effective factors on behavior are internal four factors, perception, attitude, motivation and learning have special position in the behavior of people as users of environment. Decision making process and the behavior of a person are affected by foreign forces. This effect is not good or bad. Some of these foreign forces include culture and sub culture, social status of family, environment, job status, education, etc. In this study, it was attempted to investigate the relationship between four internal factors of people regarding the environment protection with their job status. To do this, 200 people of the residents of Bushehr city were selected by multi-stage sampling method and standardized questionnaires were completed. The data analysis by one-way ANOVA showed that among four factors, there was a significant association between learning and motivation of people on environment al protection with their job status. But there was no significant association between two other factors, perception and attitude in protection of environment and their job status.
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