One of the specific aspects of our time is the existence of World Trade Organization as an important international center. This organization regulates the commercial laws among the countries, and tries to provide a suitable environment for trade by eliminating the subsidies using protection policies and making a better condition for competition. In order to achieve this objective, the economic ...

The Prophet's performance in the economic interactions of the prophetic government includes principles and axes that, in addition to explaining the Islamic religion's view of the worldly affairs, also represent the desirable structure of the economic system in modern Islamic civilization. He, as the position of the Islamic government ruler, has managed the economic affairs of the government and...

Marriages and firms share many characteristics in common. Both institutions deal with a set of promises between two parties and therefore need contracts to encourage individual parties to stand by their promises and commitments. Despite these similarities, in most countries marriage laws are statutory laws that have little in common with commercial contract laws. We present the Chicago and neoc...

Combined heat and power systems are becoming more and more important, regarding their enhanced efficiency, energy saving, and environmental aspects. In the peresent study, three configurations of combined heat and power systems are intended as an alternative to separate production plant by considering environmental aspects. First and second laws of thermodynamics are adapted to the operatin...