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تعداد نتایج: 3465990 فیلتر نتایج به سال:
To elucidate plant mechanisms involved in molybdenum (Mo) sequestration and tolerance, Brassica spp. seedlings were supplied with molybdate, and the effects on plant physiology, morphology, and biochemistry were analyzed. When supplied with (colorless) molybdate Indian mustard (Brassica juncea) seedlings accumulated water-soluble blue crystals in their peripheral cell layers. Energy dispersive ...
This article presents the distributed generator (DG) integration in a radial distribution system (RDS). The DG penetration changes single power source to multiple sources and bidirectional load flow which enhances reliability reduces losses. particle swarm optimization gravitational search algorithm are implemented for optimal siting sizing of one three units RDS examine its impact on loss redu...
Wind energy plays an increasing role in the supply of energy world wide. The energy output of a wind farm is highly dependent on the weather conditions present at its site. If the output can be predicted more accurately, energy suppliers can coordinate the collaborative production of different energy sources more efficiently to avoid costly overproduction. In this paper, we take a computer scie...
There are methods of supplying the required energy to load while reducing cost relatively, but do not take into account amount reserved energy; this is preferred if batteries used store excess produced. The proposed method a mathematical model calculate system size for in an area far from electrical grid where there huge sources biomass and high rates solar radiation. includes three generate en...
In this study, the performance of a solar greenhouse heating system equipped with a linear parabolic concentrator and a dual-purpose flat plate solar collector was investigated using the Artificial Neural Network (ANN) method. The heat required for the greenhouse at night hours was supplied by the heat stored in the storage tank by the solar system during the sunshine time and an auxiliary he...
This paper analyzes frequency entrainment described by van der Pol and phase-locked loop (PLL) equations. The PLL equation represents the dynamics of a PLL circuit that appear in typical phase-locking phenomena. These two equations describe frequency entrainment by a periodic force. The entrainment originates from two different types of limit cycles: libration for the van der Pol equation and r...
Domino logic circuits have faster operating speed than commonly used static logic ones, because they have lower input capacitances and no contention during transition. However, Domino logic circuits have more power dissipation than static logic ones, since their clock tress with high switch activity dissipates large energy. A low-power superthreshold computing scheme is proposed to reduce power...
Field Server (FS) is a rugged server which can be installed in fields. Field Monitoring Server (FMS) is a kind of FS for monitoring. So far, solar cell embedded on the top of FMSs have been used only as a light intensity sensors. The power source for FMS is supplied by a cable, since the solar cell's power alone is not sufficient to run conventional FMSs. To construct a massively distributed mo...
The utilization of glucose, amino acids, fatty acids, bicarbonate, purines, and pyrimidines by the Reiter treponeme was studied by using carbon 14-labeled substrates. The distribution of carbon from the substrates into various cell components was determined. Radioactivity from labeled bicarbonate in the cellular protein was restricted to aspartic acid. The Reiter treponeme is capable of synthes...
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