revenue management is the process of accepting or ordering which increases gained revenue by using different techniques of pricing and selling capacity. this technique has improved greatly in service sector specially passenger section. in this article, the process of selling ticket in tehran-mashhad route for ghazal passenger train is modeled by two methods: static multi class and heuristic ems...

Hydrological response of a watershed is a comprehensive symbol of environmental conditions and characteristics of the basin. Vegetation is one of the main factors in water resources status, erosion, and sediment of a watershed. Rangelands of Golestan province, Iran due to the geographical location, climate, and destruction of these resources as well as drastic land use changes from forests, and...

in western coast of gujarat destructive tsunamis have been generated from large earthquakes along the makran coast, chagos ridge and kutch region in the past. although the historical record is incomplete, it is believed that such tsunamis were destructive on the coasts of india, pakistan, iran, oman and sri lanka and possibly had significant effects on islands. the most significant tsunamigenic...

Introduction: The national trend indicates that various provinces of Iran have experienced in attaining economic growth exclusive of parallel observing a boost in CO2 emissions. It is clear that the effects of CO2 emissions on health indicators such as death rate, infant mortality, and health expenditures have been ignored by policy makers over the last decade.   Methods: This study for ...

introduction air pollution is one of the critical challenges in metropolitans around the world. according to world health organization (who), three millions people die from air pollution annually. in some studies mortality costs by air pollution was estimated. social cost of air pollution was estimated 28990 billions rials in tehran city. the mortality cost by air pollution was estimated about ...

Oil and Gas sector, with notable participation in national product and funding public expenditures, plays a seminal role in Iran's economy. Although there is a relative lag in providing proportionate supply, Iran stands at the highest rank of owning world's related proven reserves. Using a Computable General Equilibrium (CGE) model, this study was aimed to investigate the effects of the increas...