化

The homogeneous nucleation rate, saturation rate, and droplet growth equation at state 250K、100Kpa for pentone affected by single expansion wave has been obtained in the joined international cooperation research. Results exposed that temperature decrease in the homogenous nucleation and condensation is the preponderant factor in unsteady adiabatic expansion process.

参与同质核化率实验的国际合作研究，获得250K、100KPa状态附近戊醇在单脉冲膨胀波作用下的同质核化率、饱和度及同质核化微滴在低压状态中长大状态方程；研究表明非定常绝热膨胀过程中，降温因素在同质核化和凝结过程中占主导作用。

For a general parametric curve/surface, we usually cannot compute its exact implicit form. Even though its exact implicit form can be computed, the curve/surface implicitization involves relatively complicated computation and the degree is higher. Moreover, it may have unexpected components and self-intersections. All these unsatisfied properties limit the applications of the exact implicitization. So finding curve/surface approximate implicitization has become a practical problem. In this paper, we present an algorithm to solve the approximate implicitization of a given parametric curve by using a quadratic algebraic spline curve.

由于精确隐式化过程不一定可以实现，即使可以实现隐式曲线曲面的阶数高计算复杂，并且具有不希望的自交点和奇异分支，从而限制了隐式化的运用，所以寻求参数曲线曲面的近似隐式化问题成为很实际又重要的问题，提出利用二次代数样条曲线来实现一般平面参数曲线近似隐式化的一种算法。

Second, the article gives the concepts of Americanism and democratization indicates that the democratization actually is Americanism.

其次，阐述了美国化与民主化的概念，并进一步分析了美国化与民主化的关系，指出所谓的民主化是美国化前提下的民主化，实际上是美国化。

Then Doripenem came into the market in the July ,2005. We studied the synthesis of Doripemen.Firstly, we synthesized the chemical 2 from the starting material------o-hydroxylphenylacylamine through Reformastky reaction, alkylation, Diekmann reaction, enolization, esterification and etc. Secondly, we synthesized the chemical 3 from L — hydroxylproline through the protection of carboxyl, amidogen and hydroxyl group, reduction by NaBr, SN_2 substitution and Mitsumobu reaction.

我们以水杨酰胺为起始原料，经Reformatsky反应、烷基化、Diekmann环合、烯醇化、酯化等反应合成双环母核2；再从L-羟基脯氨酸出发，经酯化保护羧基、保护氨基、保护羟基、硼氢化还原酯得醇、Sn2取代和Mitsumobu反应等合成巯基侧链3；最后由化合物3经脱保护、水解得硫醇，和化合物2在二异丙基乙基胺的作用下缩合，最后Pd／C催化脱保护，历经16步反应最终得到产物多尼培南。

Hence, the first and second generations of anglicized people will still be influenced by their ethnic cultures, thus other people will not be able to see the full anglicize effects on them (In other words, most of the first and second generations of anglicized people will not feel and think that they are being anglicized).

因此，第一及第二代英语化者还会受本族文化的影响，其他人因此将无法从他们身上看到英语化的全面作用（換句话说，第一及第二代英语化者多数不会觉得，也不会认为，本身被英语化了）。

Caffeine - A derivative of coffee, is an efficient arouser of central nervous system capable to drive away fatigue, and improve renal circulation. Its stimulation on the cerebral cortex activates Neurotransmitter receptors in the cell membrane; the adenylyl cyclaseactivated on the other surface of the cell catalyzes Adenosine Triphosphate, forming Cyclic adenosine monophosphate, and thus set off series of bio-chemical reactions, like increase of passionate feel, prompt recovery from fatigue after working etc..

咖啡因—由于咖啡本身具有兴奋神经中枢，消除疲劳，增加肾脏血流量的作用，通过对大脑皮层的刺激，使神经递质作用于细胞膜受体，激活了膜另一侧的腺苷酸环化酶，被激活的腺苷酸环化酶催化三磷酸腺苷环化酶，被激活的腺苷酸环化酶催化三磷酸腺苷形成环磷酸腺苷，从而引起一系列生化反应，如增加愉快感和消除事后疲劳等。

Methylation of CpG islands in the promoters induces gene silencing. The multiple tumor suppressor gene P16, located at chromosome 9p21, regulating normal proliferation of cells with a functional unit constituting of p16, cyclin D1 and pRb together. Methylation of P16 gene has been detected in several lymphocytic and plasmacytic malignancies such as lymphoma, acute lymphocytic leukemia and multiple myeloma and shows relationships with the pathogenesis of these diseases. Application of demethylation agents or arsenical to refresh the gene functions will be expected to be a new treatment for hemopoietic malignancies.

基因启动子区CpG岛甲基化常导致基因沉默。P16基因是一定位于9p21的多种肿瘤抑制基因，通过pl6INK4Acyclin D1-PRb通路维持机体细胞的有序增殖。P16基因甲基化在淋巴瘤、急性淋巴细胞性白血病、多发性骨髓瘤等多种淋巴细胞浆细胞肿瘤中被检测到，并与疾病的发生、发展存在一定关系，应用甲基化抑制因子或砷剂去甲基化治疗，恢复基因功能可望成为血液恶性肿瘤治疗的一种新手段。

Other cells are metaplastic or atypical metaplastic cells and parakerototic or atypical parakeratotic cells, should be in ASCUS category.

其他细胞是化生或非典型化生和角化不良或非典型角化不良细胞；应该是ASCUS的范畴。

It is with the most precious metals that the assayer takes the most pains, and subjects them to the hot fire, because such fires melt the metal, and only the molten mass releases it alloy or takes perfectly its new form in the mould.

我们都知道金属越贵重，化炼越费力——它们必须经过烈火，因为烈火能叫它们镕化；只有在镕化的时候，纔能把搀杂在里面的劣金分别出来；也只有在镕化的时候，纔能把它们造成新的模型。

The news entertainment is studied in three aspects. In the first part, the roots of the entertainment news are also studied through three ways: the culture background of postmodernism, the fashion of consumerism and epicurism, and the influential position of medium behoof. In the second part, the aesthetics in entertainment news is studied through the relationship among the news, entertainment and aesthetics. In the last part, the judgement in moral and the conduction in entertainment are studied through the moralism of the news and the obligation of the mass media.

本文分为上、中、下三篇，从三个不同方面分别对新闻娱乐化现象进行了探究、思考和评判：上篇从后现代主义的文化语境、消费享乐主义的盛行、媒介商业利益的凸显等角度分析我国新闻娱乐化现象出现的深层原因；中篇从新闻、娱乐、审美三者之间的内在联系上，对新闻娱乐化现象进行审美思考：下篇从新闻的道德性和大众传媒的社会责任等方面对新闻娱乐化现象进行道德评判及引导。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。