Unsuitable operating causes too many units running whereby resulting in an increase of spillage in the operation process of LongYangXia hydropower plant.

Casing program design of mega-extended-reach wells is complex,and in order to design in reason its casing program,based on the principle of pressure balances in the casing program design in the vertical wells,the relationships among pore pressure,fracture pressure and annular pressure loss in the long open-hole section with high inclination in mega-extended-reach wells are discussed.

Metallurgical Quality of GH738 Alloy Melting in VAR Furnace with Helium Gas Cooling;

Reducing no-load loss of transformer iron core on locomotive;

Effects of adopting transformer electrical steel and HIB steel on no-load loss and noise level of transformer are analyzed.

The distribution of magnetic flux density in the iron core was studied by applying a voltage,voltage waveform and frequency change while the no-load loss of transformer was being measured,and the factors having effect on the measurement of no-load loss of transformer were theoretically analysed in detail.

Survey and analysis on influence of environment parameters and residents behaviours on air conditioning energy consumption in a residential building;

Contrast of air conditioning energy consumption among multi-storey residence of typical envelope in Ma′anshan