A new method of optimization on linear parabolic solar collectors using exergy analysis is presented. A comprehensive mathematical modeling of thermal and optical performance is simulated and geometrical and thermodynamic parameters were assumed as optimization variables. By applying a derived expression for exergy efficiency, exergy losses were generated and the optimum design and operating co...

Abstract If preference-based freedom rankings are based on all-things-considered preferences, they risk judging phenomena of adaptive preferences as enhancing. As a remedy, it has been suggested to base reasonable preferences. But this approach is also problematic. This article argues that the quest for remedy unnecessary. All-things-considered retain information whether availability an option ...

the main question of the freedom of belief in the intellectual system of ayatollah javadi refers to its pertaining structural logic in his thought. on the one hand, he tries to make sense of the essence of freedom with regard to the essentiality and gradation of existence. on the other hand, methodically trying to address the issue of freedom in a space different from that of completion, he int...

abstract production is a process by which a productive activity will require some conditions (before and after the start of the production). one of the most important pre-required factors for start up a production unit is suitable business environment. one of the most important factors that must be provided after the start of production -during the production process and the time to market and ...