春潮生物／光降解母料高效环保

山东春潮色母料有限公司与韩国SK公司合作开发出高效环保生物／光降解母料，目前已形成2万t／a生产能力。     

煮糖过程的微型计算机模糊控制

本文介绍了微机模糊控制在煮糖过程中的应用，实践结果表明，参数自整定Ｆｕｚｚｙ－ＰＩ控制器响应速度快，稳态精度高，煮糖质量比手工操作明显提高，控制效果令人满意。     

Deformation behavior and dynamic recrystallization of Mg-Y-Nd-Gd-Zr alloy

The characteristics of dynamic recrystallization （DRX） in Mg-Y-Nd-Gd-Zr-RE magnesium alloy were investigated by compression tests at temperatures between 523 and 723 K and at strain rates ranging from 0.002 to 1 s^-1 with maximum strain of 0.693. The strainhardening rate can be obtained from true stress-true strain curves, plots of θ-σ, -（δθ/δσ-）-a and lnθ-σ in different compression conditions were obtained by further study. The critical condition of the onset of DRX process was determined as （（δ/δσ（ δθ/δσ））=0. In the range of the above deformation temperature and strain rate, the ratio of critical stress （σc） to peak stress （σm） and critical strain （εc） to the peak strain （εm） stood at σc/σm=0.62-0.89 and εc/εm=0.11-0.37, respectively. DRX could be observed during hot detormation process, microstructure evolution of the magnesium alloy at different temperatures and strain rates were studied with the aid of optical microscope（OM）, and the average recrystallized grain size was measured by means of intercepts on photomicrographs. It was shown that the average dynamically recrystallized grain size （drew） changed with different deformation parameters, the natural logarithm of the average recrystallized grain size varied linearly with the natural logarithm of Zener-Hollomon parameter; the peak stress changed with the average recrystallized grain size, and the natural logarithm of the average recrystallized grain size varied linearly with the natural logarithm of the peak stress.     

从立体到平面女装结构设计合理性研究

本文通过对服装结构设计中平面构成与立体构成的比较分析 ,并对从立体取样到平面纸样进行女装结构设计的全过程进行实验分析 ,得出立体裁剪打板的合理性及其优越性 ,是一种理想的结构设计方法。