充分研究

This paper describes researches and developments of a multi media teaching software for view and analysis of metallographical structure of metal materials by computer network.

研究开发了基于计算机网络教学的多媒体金相组织观察与分析教学软件，在系统内容组织和素材的选取上充分考虑了金相教学的特点和要求。

But ferrous sulfate the by-product of TiO2 cannot be effectively used enough in our country over a long period. In order to solve above questions, the dissertation has done some works as follows:Firstly, the process of purifying by-product of TiO2-ferrous sulfate is studied. The craft and condition of the synthesis of micaceous iron oxide with by-product of TiO2-ferrous sulfate was studied through experiments.

它们都可以通过钛白副产硫酸亚铁为原料制备，但是长期以来，我国硫酸法生产钛白的副产物硫酸亚铁得不到充分有效地利用，针对以上情况，本论文主要作了以下几个方面的工作：首先，研究了钛白副产硫酸亚铁的净化工艺路线，讨论了钛白副产硫酸亚铁水热法合成云母氧化铁的工艺路线和条件，讨论了影响云母氧化铁生成的因素，得出了红、棕、灰云母氧化铁合成的控制条件。

Presents the concept of accessibility analysis for heating networks especially for the multi-heat sources and mult

通过所编制的相应软件对国内几个大型集中供热网的分析研究结果表明，在环形网上合理地装配和调节阀门，有利于改善系统的工况，充分利用管网的输送能力，提高运行的经济性。

Three part of research works had been carried out in the dissertation. The first part: a kind of multidentate amine modified silica gel was synthesized through the following steps:(1) introduce the amino groups onto the surface of silica-gel by the treatment of surface silanol groups withγ-aminopropyl trimethoxy silane;(2) michael addition of excess trihydroxymethyl propyl triacrylate to amino groups on the silica gel surface;(3) amidation of the unreacted double bonds of TMPTA on the surface of TMPTA modified silica gel with diethylenetriamine;(4) the multidentate amine modified silica gel was finally obtained by the reaction of amino groups on the surface of DETA modified silica gel with double bond of butyl acrylate.

本论文进行了三部分研究工作，第一部分：通过多步反应对硅胶进行改性合成了一种多齿胺改性硅胶配体，合成过程如下：1通过γ-氨丙基三甲氧基硅烷与硅胶表面的硅羟基反应，使硅胶表面带有氨基；2利用硅胶表面氨基与过量的三羟甲基丙烷三丙烯酸酯发生Michael加成反应；3利用二乙烯三胺与TMPTA改性硅胶表面未反应的双键发生反应使硅胶表面氨基化；4最后用丙烯酸正丁酯与DETA改性硅胶表面氨基充分反应成功合多齿胺改性硅胶配体。

When carries on the achievement appraisal to the enterprise, tradition achievement appraisal system is questioned, and the majority thought should not take the financial achievement and the shareholder value merely to enterprise's achievement appraisal, but is must stand in the sustainable development, and considers various aspects fully the benefit, therefore, the multiplicate achievement appraisal system's research is proposed the program.

在评价企业业绩时，传统的评价体系广受质疑，认为对企业的业绩评价不应仅仅重视财务业绩和股东价值，而是要站在可持续发展的角度，充分考虑各方面的利益，因此，多元化业绩评价体系的研究被提上日程。

In addition, the influences of BIS on the activities of lymphocytes in vivo and in vitro were studied, including the blast transformation of lymphocytes, the number of acid α-naphthyl acetate esterase positive lymphocyes, the cytostatic effect of hepatic LGL against hepatoma cells, in older to provided the most adequate scientific foundation for the best application of hepatoma immunotherapy.

此外还对上述不同免疫制剂在体应用对正常大鼠血淋巴细胞转化率及酸性非特异性酯酶阳性淋巴细胞数量的影响；不同免疫制剂对分离培养的肝大颗粒淋巴细胞抑肝癌细胞增殖的直接影响的研究，为肝癌免疫治疗的更佳选择提供更充分的科学依据。

As the enterprise operation environment is becoming more and more complex and uncertain, the traditional investment decision methods, representated by the NPV principle, can not be suitable for evaluating the real value of the project any longer due to neglection of the capital investment operating and strategic adaptability. The real option theory, however, regards opportunities and flexibilities as options to analyze, and takes the flexibilities value into full consideration, so the real option method is an important development of the investment decision theory.

随着企业经营环境的复杂性与不确定性程度的提高，以净现值法为代表的传统投资决策方法由于存在忽视经营柔性和战略影响的缺陷，已越来越难以正确评价投资机会的真实价值，而基于期权定价理论的实物期权定价方法将投资项目中的各种投资机会与经营柔性视作期权进行分析量化研究，充分考虑了投资活动中各种灵活性的价值，是企业投资决策理论方法的一大飞跃。

Conclusions-: These data from a large, multicenter, nonselected, obserational study underscore the "not so benign" prognosis for TIA patients.

这次大样本、多中心、非选择性的观察研究得出的数据，充分说明了TIA病人预后的并不乐观。

Based on the dynamical system of a tuberculosis spread m odel, the dynamical behavior of a tuberculosis spread model with constant immigr ation was discussed, and the local and global asymptotic stability of the endemi c equilibrium on this model is studied by using Hurwitz criterion and multiple m atrix theory. Sufficient conditions for the local and global asymptotically stab ility of the endemic equilibrium on this model are obtained.

在结核病传播的数学模型的动力学系统基础上，利用 Hurwitz 判据和复合矩阵理论，讨论了具有常数移入的结核病传播的数学模型的动力学性质，研究了具有常数移入的结核病模型的地方病平衡点的局部和全局渐近稳定性，得到了具有常数移入的结核病模型的地方病平衡点是局部和全局渐近稳定的充分条件。

However, the randomized clinical trials showing that the oncologic results are equivalent between laparoscopic and traditional open surgery are only limited to patients with colon cancer.

而就肿瘤治疗成果而言，已有随机前瞻性研究显示腹腔镜手术与传统剖腹手术在大肠癌是相当的；然而，就直肠癌而言，则尚缺乏充分的证据。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。