MUTHANNA IBN HARITHAH SHAYBANI AND THE FIRST ISLAMIC CONQUESTS IN IRAQ



Income as a wore general optimization criterion as regards availability and replacement costs in determining the optimal period of preventive replacement

This jazzy select gt parts paper discusses a procedure for determining the optimal period of preventive replacement of elements with increasing failure rate when the criterion is income per operating time unit.It is shown that income per operating time unit and its complementary value of the sum of losses due to system dwell and replacement costs r

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NATURAL RESOURCES PROTECTION STRATEGIES IMPORTANT FOR AGRICULTURE IN THE INTERNATIONAL COMMUNITY AND REPUBLIC OF SERBIA

Agriculture as an economic activity depends heavily on living organisms and ecosystems for its vulnerability of nature and therefore the environment has become a common global problems accles and shelvoke of the modern world.International legislation in the feld of environmental protection has not yet reached the level that would allow a peaceful l

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