摘要：铁电纳米粒子悬浮在向列相液晶母体中,增强介电各向异性,而且对施加的电场信号敏感。本文也展示了纳米粒子对所述复合材料可实现的总的相变的作用。这种方法也许可应用于设计新型显示材料。

摘要：Numerical s.mulation technology was.applied for optimizing the cas.ing des.gn and conditions.in large cas. iron cas.ings.for marine engine. By the s.mulation of mold filling and s.lidification s.quences.the problems.of the previous.cas.ing conditions.were analyzed and marked improvements.for large cylinder liner parts.were derived from thes. res.lts. Es.ecially the amount and pos.tions.of chills.were optimized to increas. the mechanical properties.and to minimize the s.rinkage and microporos.ty in the cas.ings. Ultras.nic tes.ing, penetration tes.ing and mechanical property tes.ing were carried out for the parts.with the modified cas.ing conditions. It s.owed that no defects.in the cas.ings.were found and the productivity could be dis.inctly increas.d. The mechanical properties.s.tis.ied als. the s.ecification demanded.

摘要：In s.miconductor manufacturing proces., probe s.ation that is.tes.ing equipment is.important. Ins.ection s.ep is.for detecting defects.on s.miconductor before the packaging. Probe card is.a part of probe s.ation and contains.probe tip that contacts.to s.miconductor. Through probe tip, it can ins.ect defects.of s.miconductor. In this.paper, optimization method is.us.d with res.ons. s.rface analys.s.to des.gn MEMs.type probe tip. And fabricating probe tip us.s.mas.les. lithography, electro-plating and lapping proces..

摘要：汽车轮胎胎面由许多花纹块和沟槽构成复杂图案,以提供轮胎的各项行驶性能,如牵引性能、制动性能、乘坐舒适性及排水性。轮胎与地面直接接触的面积有明信片大小,造成胎面磨耗的原因是轮胎与地面不可避免的滑动摩擦。轮胎磨耗不仅降低了行驶性能以及缩短轮胎寿命,

摘要：利用完全随机分组设计试验来评估不同锌浓度和锌来源对仔猪生长性能的影响。试验Ⅰ包括7个阶段．分别用蛋氨酸锌作为锌源．添加量为125、250、500mg／kg的锌来代替以氧化锌作为锌源及添加量为2500mg／kg的锌进行作用效果的比较。在所有的阶段中．以125mg／kg锌的添加量为对照组．试验选用615头猪，26个重复，平均断奶日龄是20．6d，平均初始体重6．3kg。