The way Energy, Economy and Environment systems correlate along with the appropriate policy will bring about a countries sustainable growth and economic development (E3 Models). The models deals with the relation between these aspects are generalized versions of economic growth models which take into account the energy and environmental factors. This research analyses concurrent efffect of ene...

This paper tries to estimate employees population in time series in Irans economic sectors within 1955-2006. Natural spline and monotone cubic spline interpolation methods were used in order to estimate the time series statistics of the employees population between two censuses or two consecutive samplings. An explanatory variable was chosen according to labor demand and labor market structure....

abstract nowadaysphotovoltaic solar cells (pvs) areacknowledged the fastest growing energy technology in the word, however, they only account for only fraction of current global renewable energy capacity. it isrecognized that this incomplete market penetration has been largely a result of the technology’sexcessive cost. so researchers are trying to find innovative, economic way with theaim of ...

if the precise implementation of the principle of proportion and:balance between the violation and the penalty as well as the other dimensions could be considered as a stick yard for the imptementation of justice any lack of preciseness in carrying out such principle would not indeed be much too far from injustice . naturally ,if it would be imagined that the objective of balance between...

drought is transient phenomenon , slow , repetitive and integral part of the climate of each region. drought begins with a substantial reduction in precipitation over the long-term average rainfall and over time, reduced soil moisture and surface and ground water resources will continue to decrease. this phenomenon is the most important in bakhtegan basin because of its importance in strategic ...