This article introduces the early failure mechanisms easily happened at the initial production startup stage of high amperage pre-baked cell.

Comparing three forecasting methods with individual well initial production,it is thought that the numerical simulation method could consider many factors and actual situation.

A survey and analysis on demand of primipara for postpartum sexual knowledge;

Investigation and analysis of health information needs in pregnancy of 976 primiparae in Guangzhou city;

A research on influence of health education on delivery outcomes of primiparae;

Effects of the Attributional Training on Delivery of the Primiparas with Negative Attributional Mode;

Objective To investigate the effect of post-discharge home interview on the quality of life of primiparas at puerperium.

Objective To explore the effect of measuring the length and elasticity of perineal body during delivery for primiparas,and to minimize delivery injury.