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With the advent of the era of Knowledge-based Economy, especially the Internet technology as the representative of information technology keeps on having impact on the traditional human resource management, which demands the informational reform of traditional human resource management. It is a long-standing problem as to how to learn about, employ and cultivate personals and naturally as well as...
The emergence and rapid development of electronic commerce has greatly changed the original marketing theory and practice to exist. Internet marketing has become an indispensable business as part of integrated marketing. Different stages in the development of the Internet, internet marketing content and tools are constantly progress. Therefore, complies with the time development the tidal current,...
Based on the mechanism that the primary and secondary currents of flyback converter do not appear at the same time, two different equivalent models of flyback transformer are brought forward correspondingly. Stage by stage analysis of the working process of both continuous conduction mode(CCM) and discontinuous conduction mode(DCM) is presented by using appropriate transformer equivalent model in...
The principal refractive indices of Ca 9 La(VO 4 ) 7 crystal for wavelengths of 0.488, 0.6328, 1.064 and 1.338μm under the temperature range from 30°C to 170°C were measured by auto-collimation method. The Sellmeir-equations of Ca 9 La(VO 4 ) 7 crystal at different temperatures have been obtained based on the experimental data, and the refractive indices...
The influence of transformer parasitics to low power high voltage output flyback converter is analyzed by using the transformer equivalent circuit, and through the way of simulation. Its mechanism under DCM working mode is discussed from the aspect of the flow of energy, stage by stage. Based on this analysis, the theory of balanced state of the low power high voltage output flyback converter is brought...
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