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CHINESE JOURNAL OF POLAR SCIENCE is a comprehensive academic journal sponsored by the Chinese Polar Administration and Polar Research Institute of China. The primary purpose is to report current important development in polar research of many scientific fields for scientific workers in both China and other countries.

天竹纤维经纱上浆技术探讨

文章通过对竹纤维的形态结构和特性分析,指出PVA并不适宜用于竹纤维浆纱。变性淀粉配合SUPERSIZE(S.S浆料)和一些丙烯酸类浆料是一种竹纤维浆纱时经济并且环保的方案。该方案能够使纱线具有足够增强的同时保持纱线的弹性、使浆纱柔软光滑,满足织造要求,节约浆纱成本。

ON THE EXCESS GIBBS FREE ENERGY OF MIXING FOR THE ELECTROLYTE SOLUTIONS

Let γ be the practical activity coefficients, φ be the practical osmotic coefficients, m be molalities, ν be numbers of ions per molecule of solutes, the superscript 0 denotes a quantity referring to one of the binary solutions. The MRB (MckayRobinson-Bower) equation for calculating the excess Gibbs free energy of mixing of electrolyte solutions, △G^E, can be written

小切口非超声乳化白内障摘出联合折叠型人工晶状体植入术疗效观察

目的探讨小切口非超声乳化白内障摘出联合折叠型人工晶状体植入手术的效果和特点。方法对白内障行小切口非超声乳化摘出联合折叠型人工晶状体植入的42例（48眼）进行回顾性分析。结果术后1周-1个月视力≥0.5者占91.67%,其中≥0.8者占47.91%。术后视力不理想者均系原有的视神经或视网膜疾病所致。术后并发症发生率低。结论小切口非超声乳化白内障摘出并折叠型人工晶状体植入手术能有效地提高视力。是安全有效的白内障手术。