comparison of energy productivity of different crops can be used as an effective tool to prioritize crops planting in each area. this study was conducted in order to compare of wheat and barley farms of sistan and blochestan province in relation of various aspects of energy consumption at 2009. 100 wheat and 100 barley fields were selected randomly from zahedan, zabol, saravan, khash, iranshahr...

This title may appear rather presumptuous in the light of the progress made by the leading wave energy devices. However, there may still be some useful lessons to be learnt from current 'offshore' practice, and there are certainly some awful warnings from the past. Wave energy devices and the marine structures used in oil and gas exploration as well as production share a common environment and ...

This paper examines the role of energy efficiency in enhancing electric system reliability. In many states that have enacted utility restructuring legislation, and thus far in Congress, energy efficiency advocates have had trouble convincing legislators of the connection between end-use efficiency and system reliability, and thereby persuading them to include support for end-use efficiency prog...

Since 1983 the US Central Intelligence Agency has defined terrorism as “premeditated, politically motivated violence perpetrated against noncombatant targets by subnational groups or clandestine agents, usually intended to influence an audience.” Compared to the many dangers facing the US today, the threat of terrorism is relatively small. Nonetheless, at nearly all levels of US society the res...