نتایج جستجو برای: harvesting time
تعداد نتایج: 1914536 فیلتر نتایج به سال:
This work addresses two key topics in the field of energy harvesting and wireless power transfer. The first is the optimum signal design for improved RF-DC conversion efficiency in rectifier circuits by using time varying envelope signals. The second is the design of rectifiers that present reduced sensitivity to input power and output load variations by introducing resistance compression netwo...
rice is one of the most important staple cereals in iran and has a main role in providing the food security. harvesting by hand postpone the rice harvesting stage, and facing late season rainfall, and increase of yield losses during harvesting. to determine the most suitable harvesting method in gilan, three different harvesting methods (by hand, harvester and combine) were considered as...
the main purpose of this study is measuring and comparing of peanut harvesting loss in manual and mechanical methods in addition to economic analysis of them. hence, a field was selected in astaneh-ashrafiyeh and divided to three different plots. two plots were applied to measure mechanical harvesting loss and third one was applied for manual harvesting loss. according to test results, the lowe...
introduction: given its low and sparse precipitation both in spatial and temporal scales, iran is nestled in an arid and semiarid part of the world. on the other hand, because of population growth, urbanization and the development of agriculture and industry sector is frequently encountered with increasing water demand. the increasing trend of water demand will widen the gap between water suppl...
DOR: 98.1000/2383-1251.1398.6. 19.11.1. 1603.1606 Extended Abstract Introduction: Guar (Cyamopsis tetragonolob) which belongs to fabaceae and leguminosae families is self-pollinating and is indigenous to India and Pakistan. This plant is suitable for growth in dry, damp and sandy soils, and can tolerate saline and relatively alkaline soils. Determining the best time for harvesting seeds and...
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