The construction power supply system for the Three Gorges Project is the largestone in China, with amaximum load of up to 70 MW,and four voltage levels including a rated voltage of 220 kV for main power supply, 110kV for safety power supply, 35kV for the lowest levelin the power supply netowrk and 6kV for the distribution.
Taihu Basin is rich in precipitation. But it is lack of water resources supply in comparison with the increasing water demand due to the rapid economic development.
In the first scheme, fine sediment variable supply accounts for 56.29%-contribution Rate of the infection factor, while water temperature change of monthly accounts for 15.28%, salinity change of monthly for 10.99%, the other dynamic factors for 15%;
On the basis of analysises of water quality isotope data,this paper discussed detailly the mechanism in desert with δD δ 18 O curve and SOD δ 18 O curve. The basic data are provided for groundwater exploitation for oil field water supply in desert zone.
This paper introduces the method of borrowing the measured discharge materials of the nearby valley to deduce the design flood and make the hydrological analysis and provides the design reference to the project construction in short supply of materials.
By the superposed results of dynamical and static calculations, the seismic security of the tower can be evaluated so as to supply reliable data for project designers.
The asymmetry of the rotor caused by broken-bar fault will give rise to the appearance of additional frequency component of 2sfs (s is slip and fs is supply frequency) in the electromagnetic torque spectrum.
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Whereas the P and Q for a rotor broken bar motor are represented by an ellipse because they comprise an additional frequency component 2sfs (s is the slip and fs is the supply frequency).
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The ideas of adaptive nonlinear damping and changing supply functions were used to counteract the effects of parameter and nonlinear uncertainties, unmodeled dynamics and unknown bounded disturbances.
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The effects of nitrogen and phosphorus supply on chlorophyll biosynthesis, total nitrogen content, and photosynthetic rate were studied.
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The results suggested that supply levels of nitrogen affected ALA biosynthetic rates, activities of PBG synthase, and affected contents of chlorophyll and carotenoids.