the main objective of this research was identifying an appropriate model for the work values in public services of iran within the framework of islamic value system. the basic in this study is: what are components and dimensions of the work values in public services of iran within the framework of islamic value system? in this basic research, data was gathered through filed and library data col...

This study investigated the mediating role of basic psychological needs at work in association from values to job satisfaction. Using a four-factor model values, we tested how each value factor was related need satisfaction and frustration work. The sample included 228 workers (72% female) surveyed twice over 7-week interval. Results showed that positively predicted by intrinsic social negative...

It is always attempted to reduce the costs of comminution in mineral processing plants. One of thedifficulties in size reduction section is not to be designed properly. The key factor to design size reductionunits such as crushers and grinding mills, is ore’s work index. The work index, wi, presents the oregrindability, and is used in Bond formula to calculate the required energy. Bond has defi...