XRD analysis of the samples prepared by mechanical alloying and sintered for 10h at 850℃ temperature and Ar gas protection conditions show that the testing results were the best and the ideal NdMgNi_4 single phase was observed.

1) alloys are single component alloy, and have the same crystal structure as Mg 2Ni, while three phases (including Mg 2Ni, NdNi, NdMgNi 4) were formed in Mg 1.

The effects of milling time on the microstructure and hydrogen storage characˉteristics of the single-phase NdMgNi 4 compounds,treated by high-energy ball milling,were discussed in this paper.

Research on application of single-phase active multi-tariff watt-hour meter in its practical application;

CPS-SPWM technique for a single-phase multilevel current source inverter;

Analysis of pressure drop characteristics of single-phase flowing through vertical rolling pipes;

The preparation of monophase Tl_2Ba_2Ca_2Cu_3O_x bulk materials was investigated.

The results reveal that the preparation of the γ′-(Fe1-xNix)4N monophase powder is related to NH3/H2 gas flow ratio,heat treatment temperature and time.

This article introduces the technical principle and the application of monophase prefabricated substation, analyses the technical characteristic of the product and raises some practical problems that should be considered in order that the power loss can be reduced and the reliability of power supply can be increased further.

Damper winding in small single phase synchronous generators

In the experiment of determination of flow resistance of single phase,one of the experiments of chemical theory,there were two methods to determine the pressure drop.

Batsed on the cite investigation and theory calculation,the paper indicates that6kV electric nets with non-earth-connection oeutral point for coal mines exist serious safity prob-lems,and the earth connection pattern of single phase is not suitable to some electric nets in coalmines.