Neutron activation analysis and M(o)ssbauer spectroscopy research on coloring mechanism of ancient Chinese Guan porcelain

The content of 30 kinds of coloring elements in Guan porcelain in the Southern Song Dynasty has been determined by neutron activation analysis (NAA). Iron is the major coloring element. M(o)ssbauer spectroscopy has shown that the iron of the glaze exists in the form of structural iron (Fe2+, Fe3+). The quantitative relationship between the main wavelength of every color glaze and the relative content (Fe2+/Fe3+) of structural iron has been determined. Thus the coloring mechanism of Guan porcelain in the Southern Song Dynasty has been revealed entirely.     

从郑州商战谈中原商业企业的困境及对策

建立科学合理的现代企业制度，大胆变革企业的财产组织形式和经营方式，努力解决好国有资产的管理，保证国有资产的保值增值，深化商业企业内部领导体制和各项制度改革，加速企业间的联合经营化、企业发展的组织化和规模化程度，是中原商业企业走出困境的积极对策。     

旋转圆筒型平衡过滤中过滤助剂的促进作用机理

通过在难过生微晶土科液（ＭｉｃｒｏｃｙｓｔｉＳｌｕｒｒｙ）中添加适量的过滤助剂高岭土（ＫｏｒｅａｎＫａｏｌｉｎ），硅藻土（Ｄｉａｔｏｍｉｔｅ）和高分子凝集剂（Ｐｏｌｙａｃｒｙｔａｔｅ Ｓｏｄｌｉｕｍ）聚丙烯酸钠，在不同的操作条件下对精密平衡过滤的促进作用进行了探讨，研究结果表明添加过滤助剂和凝聚剂可以明显提高难过滤性料液的过滤速度。     

美国不法致死之诉中“享乐损害”赔偿制度研究

在美国不法致死之诉中,除了"疼痛和痛苦"的损害赔偿之外,一些司法辖区还承认对另一种非经济损害"享乐损害"的金钱赔偿,其目的在于补偿受害人生活品质的丧失或者生命本身的价值的丧失.且在不法致死之诉中,越来越多的原告及其律师要求陪审团对"享乐损害"裁定金钱赔偿.我国可以借鉴美国一些做法,在侵权立法中建立起补偿死者本人之"享乐损害"的赔偿制度,并且裁定"有限的"金钱赔偿.     

支盘桩的作用机理及其应用前景

本文开始介绍了支盘桩的形成背景及其结构，分析其成桩机理、受力与破坏机理，叙述了其一些优点和应用前景，得出了有关使用支盘桩优势及其在工程中应用的必要性，并经实际勘探资料证明了所得结论的正确性。     

完善我国公务员激励机制的思考与探讨

通过分析我国公务员激励机制存在的问题,并结合公务员激励机制的特点,对我国的公务员激励机制及发展提出了几点建议。     

VB环境下机构运动仿真的实现

针对机构设计过程中集动态数据分析及运动仿真兼备的要求,分析了VB软件中绘图控件的属性和事件的特点,进而提出了动画设计对策,并在院团委创新教育项目中得到了应用和验证。     

非离子乳化原油破乳剂油水界面行为的研究

以油水界面张力为手段考察了破乳剂对界面膜的影响。结果表明，破乳剂的扩散速度，投加量，化学结构等都对破乳剂的界面行为产生影响。     

指定瞬时几何和运动参量的机构综合

本文提出一种新的解决指定瞬时几何和运动参量机构综合问题的方法,可用于指定动点轨迹的曲率、曲率变化率以及动平面和动点直至三阶运动参量的综合问题。     

Insights into acylphosphatase structure and catalytic mechanism

Acylphosphatase is one of the smallest enzymes known (about 98 amino acid residues). It is present in organs and tissues of vertebrate species as two isoenzymes sharing over 55% of sequence homology; these appear highly conserved in differing species. The two isoenzymes can be involved in a number of physiological processes, though their effective biological function is not still certain. The solution and crystal structures of different isoenzymes are known, revealing a close packed protein with a fold similar to that shown by other phosphate-bind ing proteins. The structural data, together with an extended site-directed mutagenesis investigation, led to the identification of the residues involved in enzyme catalysis. However, it appears unlikely that these residues are able to perform the full catalytic cycle: a substrate-assisted catalytic mechanism has therefore been proposed, in which the phosphate moiety of the substrate could act as a nucleophile activating the catalytic water molecule. Received 12 November 1996; accepted 27 November 1996