全Nb3Sn12T净孔径Ф36mm密实型超导磁体

本报道用超导线共计１１ｋｇ的三个Ｎｂ３Ｓｎ分磁体组合成的净孔径Ф３６ｍｍ，中心场强１２Ｔ的超导磁体。该强场超导磁体的特点是：体积小，重量轻，耗氦少，且可拆卸重新组合，以不同的孔径和中心场强多用途使用。     

陶瓷物态方程实验研究

 采用爆轰加载和阻抗匹配法，得到了05-Al₂O₃陶瓷的冲击波速度D和粒子速度u的线性关系为：D=(2.60±0.20)+(1.65±0.09)u（km/s）。根据所得实验结果，利用Born-Meyer势获得了Grüneisen物态方程。     

中国化学会首次颁发“高分子基础研究王葆仁奖”

1987年10月13日在武汉市召开的中国化学会“全国高分子学术论文报告会”开幕式上,中国化学会高分子委员会钱人元、冯新德、钱保功先生代表中国化学会宣布了1986年度“高分子基础研究王葆仁奖”获得者名单及其研究成果简况,并向他们颁发奖状、奖金和纪念品。这次获奖的是:复旦大学化学系副教授江明、中国科学院化学研究所助理研究员袁国卿和北京     

徐寿所译化学著作的原本

徐寿(1818—1884),字雪村,江苏无锡人,是中国近代化学的先驱和杰出的开拓者。他的卓越贡献之一,是介绍和翻译了十几部重要的西方科技著作,其中大约一半是化学著作,这些著作将西方近代化学系统介绍到中国,对于中     

PREPARATION AND EVALUATION OF SMALLBORE REVERSED PHASE HIGH PERFORMANCE LIQUID CHROMATOGRAPHIC COLUMN

A smallbore chemically bonded alkyl stationary phase column of 2 mm I. D.(inner diameter) and 15 cm in length having an efficiency of 6400—7600 theoretical plates has been developed. The column officicncy is nearly the same as that of routine analytical column of 4.6—5.0 mm I. D. The amount of cluant used for the smallbore column, however, is less than about one fifth that for the ordinary columns.Using the reaction of monochlorosilane with 5 μm accumulated silica bead produced in Qingdao Ocean Chemical Factory instead of trichlorosilane and irregular silica gel, we have. prepared a nonpolar chemically bonded phase packing which has a higher carbon content and more obvious hydrophobicity. Moreover, the reproducibility of the preparation is better.The equipment and assembly necessary for getting high efficiency with the smallbore column are discussed briefly. Using Model SW-1 smallbore column HPLC instrument developed in the institute with the Model K-1 column fittings and injector, the detector with     

费米体系中的一个新积分方程——计算两体关联函数的叠加近似及其扩展

本文在关联基波函数这种处理量子多体系的变分理论框架下,推导出一个描写费米子体系的新的积分方程。根据开联键的顶角具有的各种不同的拓扑结构,细致地考虑了费米子所特有的交换特性。由于在这种新的Chakravarcy-Woo表述中,可以得到径向分布函数的各个交换部份,因此第一次可以应用Chakravarty-Woo方法同时计算出三种形式的动能数值。     

INFLUENCE OF THE ELUENT COMPOSITION ON RETENTION IN REVERSED PHASE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY (HPLC)

It is proved for the first time by means of measuring the retention values of 16 compounds that the relationship between solute retention and composition of eluent MeOH/H_2O in reversed phase (RP) system can be described with the equation In k'=b_0 b_1C_B b_2lnC_B which was drawn on the basis of liquid-solid chromatography (LSC) mode. The brief discussion about the several constants in the equation has been done.     

SOLITARY WAVE THEORY OF FORMATION OF SQUALL LINE IN THE ATMOSPHERE

Making use of shallow-water equations on f plane and considering the shear of basiccurrent, we have derived a KDV equation which describes the motion of atmospheric soli-taries. We have shown that atmospheric squall lines often found near the low level jet are theresults of the developments of these solitaries. The interactions and evolutions of thesesteady or unsteady solitaries have been studied undor some profile of basic current. Theseresults are in agreement with the facts observed recently near the low level jet. So thenonlinear formation of squall line, the high nongeostrophic wind and heavy rain near thelow level jet are internally compatible with each other.     

△(1236)束缚态

用薛定格方程讨论了在O¹⁶中一个束缚的△（1236）的单粒子能量和波函数。     

3Cu(IO3)2·2H2O晶体的电子结构研究

本文测定了3Cu(IO₃)₂·2H₂O球晶的电子吸收光谱,吸收峰位于9140cm^-1和15250cm^-1。首次观察到了高达6110cm^-1的低对称晶场分裂。吸收曲线经Gauss分解可得到八个Gauss型吸收峰,分别位于8590,10690,10870,12190,13500,14510,15330和16500cm^-1。测量其EPR谱可得g=2.141±0 关键词：