黄芪多糖粉针剂的研制及生理活性测定

黄芪(Astragalus mongholicus Bge)在1kg 高压条件下煎煮1.5h,提取得到黄芪多糖(简称 APS),其收率比在常压下煎煮相同时间高一倍。APS 粗品通过 Sephadex G-75精制所得收率为51.6%。对 APS 精品进行黄酮、氨基酸、蛋白质、鞣质、草酸和生物碱等项检查,结果均为阴性。测定精品的总糖含量比粗品高9.43%。APS 经真空低温干燥后制成粉针剂,呈白色粉末,易溶于水。用其行腹腔注射小白鼠,5～7d 后,脾重明显增加。     

利用全息摄影测量结合面变形

机器是由若干构件和结合部组成的,确定结合面变形对分析机器性能和提高设计质量都是十分重要的。笔者已在有关文献中研究了通过理论解析确定结合面变形的方法。为了考核这种解析方法的正确性,本文利用全息摄影测量出构件和结合面的综合变形,再用解析计算的方法求出构件的变形,然后将结合面的变形从综合变形中分离出来,从而间接地测出结合面变形,并将测量值与解析值进行了对比。     

坚持科学发展观,优化人事档案信息管理

文章应用科学发展观，探讨干部人事档案信息管理要有创新的理念，翔实的数据基础，并利用新的技术服务手段，构建人才信息交流平台。     

论司法公正与法官职业道德

司法公正是法治国家中最重要的公正形态,遏制司法腐败,不仅要依靠司法制度改革,而且也要依靠法官职业道德建设。法官职业道德是司法公正的重要保障,其中包括“中立”、“独立”、“严谨”、“廉洁”、“勤勉”等具体要求。加强法官职业道德建设,应当注重教育、保障和惩戒三方面工作。     

从祥林嫂等三位女性命运看鲁迅的女性观

祥林嫂、子君、刘和珍是鲁迅笔下颇具代表的女性形象。这三位女性所处的时代、生活状况、斗争方式不同。笔者对以上几方面进行分析,发现鲁迅笔下的女性形象是逐步发展的,鲁迅的"女性观"是不断进步的。     

A REPRESENTATION THEOREM OF THE BOUNDED REGULAR OPERATORS FROM SOME SPACE X ONTO L_1(μ)

1 PreliminaryIn this paPer, (n, Z, p) denotes the measure space of all finite complete positive measures,Ll (p) denotes all Bochner integrable functions on (Q, Z, p). Suppose X, Y are normed vectorlattices, X denotes the positive cone of X, L(X, Y) denotes all the 1inear operators from Xto Y. However, L(X, Y) may not be a lattice under the classical order. In [1], we know that ifX is a Banach lattice, then R(X, Y) 2 L"(X, Y), and if Y is order complete, so does R(X, Y).(Here R(X…     

Clifford分析中广义k正则函数的Riemann-Hilbert边值问题

研究了Clifford分析中广义k正则函数的Riemann-Hilbert边值问题,给出了该问题的可解条件和通解的积分表达式.     

3-甲基-6-氨基-5-氰基-4-（4-对甲氧基）苯基-1-苯基-1，4-二氢吡喃并[2，3-c]吡唑与牛血清白蛋白相互作用的研究

采用荧光光谱法研究了人体生理pH值条件下,3-甲基-6-氨基-5-氰基-4-(4-对甲氧基)苯基-1-苯基-1,4-二氢吡喃并[2,3-c]吡唑(Ⅰ)与牛血清白蛋白(BSA)分子间的相互结合反应;获得了不同温度下Ⅰ与BSA作用的结合常数K和结合位点数n;并根据Forster非辐射能量转移机理,计算出其与BSA相互作用时给体-受体间距离r为5.01 nm及能量转移效率E为0.280.证实了Ⅰ与BSA的相互结合作用为单一的静态猝灭过程,确定了其与BSA分子间有较强的结合作用,且结合力以疏水作用力为主.     

Authigenic sulfide minerals and their sulfur isotopes in sediments of the northern continental slope of the South China Sea and their implications for methane flux and gas hydrate formation

This is a report of the study of the authigenic sulfide minerals and their sulfur isotopes in a sediment core (NH-1) collected on the northern continental slope of the South China Sea, where other geo-physical and geochemical evidence seems to suggest gas hydrate formation in the sediments. The study has led to the findings: (1) the pyrite content in sediments was relatively high and its grain size relatively large compared with that in normal pelagic or hemipelagic sediments; (2) the shallowest depth of the acid volatile sulfide (AVS) content maximum was at 437.5 cm (>2 μmol/g), which was deeper than that of the authigenic pyrite content maximum (at 141.5-380.5 cm); (3) δ 34S of authigenic pyrite was positive (maximum: 15‰) at depth interval of 250-380 cm; (4) the positive δ 34S coincided with pyrite enrichment. Compared with the results obtained from the Black Sea sediments by Jorgen-sen and coworkers, these observations indicated that at the NH-1 site, the depth of the sulfate-methane interface (SMI) would be or once was at about 437.5-547.5 cm and the relatively shallow SMI depth suggested high upward methane fluxes. This was in good agreement with the results obtained from pore water sulfate gradients and core head-space methane concentrations in sediment cores collected in the area. All available evidence suggested that methane gas hydrate formation may exist or may have existed in the underlying sediments.     

基于Web的工学院成绩管理系统的设计与实现

教学管理信息化是学校信息化的一项重要内容,工学院学生成绩管理系统是一个典型的MIS系统。文章根据工学院成绩管理的需求,设计了一种适合工学院学生成绩管理的模式。设计中利用管理学的原理和计算机的技术,通过浏览器、服务器的模式,对用户进行了分层管理:高层管理员用户、中层管理用户、基层管理员用户。根据不同层次的用户,拥有不同的管理权限。该系统利用学校的局域网络和互联网,在能上网的地方实现不同用户的操作需求。