Effects of corpora cardiaca extract,furosemide and ion substitution on sodium and chloride flux in perfused Malpighian tubules ofLocusta

Treatment with the co-transport inhibitor, furosemide decreased³⁶Cl^– flux across perfused Malpighian tubules ofLocusta. However, exclusion of³⁶Cl^– from the bathing medium had not effect on²²Na⁺ flux whereas substitution of bathing medium Na⁺ by K⁺ increased³⁶Cl^– flux. Diuretic extract of corpora cardiaca increased²²Na⁺ (by 106%) and³⁶Cl^– (by 335%) fluxes differentially.     

影响铸造涂料工艺性能的因素分析

通过正交实验研究，测试了铸造涂料的碾压工艺、原材料以及原材料的处理工艺对涂料的悬浮性、表面强度、发气量等主要工艺性能的影响。结果表明：当选用轮碾机制作铸造涂料时，碾压时间达到１．５小时即可满足工艺性能的要求；涂料中无论是粘结剂还是悬浮剂的增加均会大幅度提高涂料的表面强度和悬浮性。     

一种基于CMAC网络的自学习控制器

通过分析了ＣＭＡＣ神经网络的学习机制和连续搅拌反应釜的结构，提出了一种自动选择学习率的ＣＭＡＣ自学习控制方法。给出了自学习控制器的结构和算法，并以连续搅拌反应釜模型为对象进行了仿真研究，这种网络每次学习少量参数，算法简单，仿真结果表明所提出的控制器优于传统的ＰＩＤ控制器。     

Sn—Pb／Cu润湿性测试分析研究

介绍了利用图象处理技术研究了Ｓｎ－Ｐｂ合金钱民铜润湿性的方法，提出了联机的图象特征提出算法和润湿参数求取算法，给出了Ｓｎ－Ｐｂ／Ｃｕ润湿特性在直流电影响下测试分析结果。     

Epitypification： should we epitypify？

Epitypification can solve many taxonomic problems and stabilize the understanding of species, genera, families or orders. The aim of this paper is to illustrate how to epitypify. A few examples where taxa have been epitypified are considered and the benefits and disadvantages of epitypification are discussed. We also outline some examples of taxa which need to be epitypifled with reasons.