查询词典 synthesis

The present thesis adopts Iseult Honohan's six basic elements of republicanism as a theoretical framework for the study of Jefferson's conception of republicanism, which is the theoretical basis of his conception of the ward system:(1) Jefferson's conception of virtue, characterized by his optimism about the universality of the moral sense and the people's capacity of self-government;(2) Jefferson's conception of freedom, characterized by his synthesis of both negative liberty and positive liberty;(3) Jefferson's criterion of the republican government and the scope of the republic, characterized by his synthesis of both participation and representation;(4) Jefferson's conception of the shaping of republican citizens, characterized by the synthesis of school education and active participation in public affairs;(5) Jefferson's conception of the material preconditions of the republic, characterized by his primary concern for the economic independence and political freedom of both the individual and the nation.

杰斐逊的共和主义思想是他的分区制度构想的理论基础。论文首先采用Iseult Honohan 的"共和主义基本要素"作为理论框架，从以下五个方面对杰斐逊的共和主义思想进行研究：(1)道德观，主要特点体现为对道德意识的普遍性和人民的自治能力持乐观态度；(2)自由观，主要特点体现为消极自由与积极自由相结合；(3)共和政府的标准以及共和国的范围，主要特点体现为人民直接参政与代议制相结合；(4)塑造共和公民，主要特点体现为学校教育与积极参与公共事务相结合；(5)共和国的经济基础，主要特点体现为对个人与国家的经济独立与政治自由的关注。

This paper reviewed the recent development of synthesis of propyl lactide,discussed the effects of different synthesis techniques and various catalyst system s for the preparation of propyi lactide on the yield and discussed the prospect of propyl lactide synthesis.

介绍了丙交酯合成研究的最新进展，比较了不同催化体系和不同合成工艺对丙交酯收率的影响，并对丙交酯合成的发展前景进行了展望。

Study on the synthesis of the antistatic agents of didodecyl phosphate and its salts ——The synthesis and technology optimization of didodecyl phosphoryl chloride;2. The synthesis of didodecyl phosphate and its salts by the reaction of 1-dodecanol with phosphorus oxychloride was studied.

研究了以三氯氧磷与月桂醇为原料合成磷酸二月桂酯(C12-DAP)及其盐的工艺条件，考察了反应温度、反应时间和物料配比等因素对酯化反应与水解反应进程的影响，通过优化实验方法，选择了适宜的合成工艺条件。

Four main types of spatial binary links are investigated in details for kinematic synthesis both in precision-position synthesis and multi-position synthesis. In terms of the invariants of spherical curve and cylindrical curve, the mathematical models of adaptive fitting sphere and cylinder are constructed by means of the saddle-point programming.

再次，根据常见空间机构运动副组合的约束曲线与约束曲面的曲率理论，阐述了空间机构运动综合的基本要素及其不变量拟合理论与方法，研究了有限位置和多位置情况下，自适应综合方法在空间S-S、C-S、C-C和S-C四类二副杆组运动综合中的应用，实现了自适应综合方法从平面到空间的扩展。

Now HLS has absorbed much research attention in IC-CAD field. In HLS, algorithms represented by algorithm description language are transformed into hardware structure description consisted of resisters and transfers. In the transforming process, synthesis of datapath is a core. The other works is based on it. And in the synthesis of datapath, operation scheduling, functional unit allocation and binding all are NP-Completeness problems. The structure of their solution space is not known well. If we must find a global optimum solution, we can only use exhaustion. This way needs too much computation for VLSI synthesis, and is impractical in Industry. So usually heuristic algorithms are used to search suboptimum solution.

因此HLS成为国际IC-CAD学界的一个热门，它把算法描述语言表达的算法转换为用寄存器、传输器描述的硬件结构，其中以数据通路的综合为主体，其余工作皆以此为基础；而在数据通路综合中，操作调度、功能单元分配、连线等均属NP问题，目前该问题的解空间尚未充分了解，如要求得最优解，只有采取穷举搜索法，对于大规模集成电路而言运算量太大，工业中无法承受，故通常都采用启发算法求次优解。

The general method and microwave radiation Veratrum aldehyde synthesis comparison Abstract: Objective To investigate the synthesis methods Veratrum aldehyde and to study the synthesis of microwave radiation of the advantages and disadvantages of this new approach, to provide guidance for the production of meaning.

化学合成毕业设计翻译求解急！！用普通方法和微波辐射法合成藜芦醛的比较摘要：目的考察合成藜芦醛的方法，并研究微波辐射合成这种新方法的优缺点，为生产提供指导意义。

Veratrum aldehyde synthesis of many drugs intermediates, methyl aldehyde method for raw materials in Champlain, after dimethyl sulfate methylation available to 20% sodium hydroxide as the solvent, 10-11 in the PH value of the under the conditions of synthesis; microwave irradiation is the use of microwave radiation heating to replace the traditional approach to synthesis of a product of methylation reactions, this method does not require solvents, and less by-products, but still need to use 15% sodium hydroxide to adjust pH.

藜芦醛是许多药物合成的中间体，甲基化法以香兰醛为原料，经过硫酸二甲酯甲基化可得，以20%氢氧化钠为溶剂，在PH值为10-11的条件下合成；微波辐射法是利用微波辐射代替传统加热方式进行甲基化反应合成产物，这种方法不需要溶剂，并且副产物少，但仍需要用15%氢氧化钠来调节酸碱度。

The thesis concerning about the total synthesis of some natural occurringlignans and neolignans consists of following five parts:I. Progress in the synthesis of some natural occurring neolignans A view of the synthesis of some natural occurring neolignans, especiallybenzofuraniod and bicyclo[3, 2, 1]octanoid neolignans was given. The syntheticmethods for this two kind of neolignans have been classified and discussed.Ⅱ.

本论文研究了一些木脂素和新木脂素类天然产物的全合成，共包括五部分内容：一、一些新木脂素类天然产物的合成进展对一些新木脂素类天然产物尤其是苯骈呋喃类和双环[3，2，1]辛烷类新木脂素的合成工作进行了较为全面的介绍，并对此类化合物的合成方法进行了分类和讨论。

objective effects of plant tannins,chebulinic acid and tellimagrandin i on chemically induced hemoglobin synthesis in k562 cells were investigated.methods the hemoglobin synthesis situation was assayed with benzidine staining.erythroid antigens glycophorin a expression on the surface of k562 cells was labeled by direct immunofluorescence using fluorescein isothiocyanate-conjugated anti-gpa antibodies.then flow cytometric analysis was performed to detect gpa expression levels on surface of the cells.results both chebulinic acid and tellimagrandin i could inhibit the hemoglobin synthesis of butyric acid and hemin-treated k562 cells in a concentration-dependant manner.however,the ba-induced k562 cells were more sensitive to two tannins than heroin-induced cells.conclusion chebulinic acid and tellimagrandin i have inhibitory effect on the erythroid differentiation.

目的 研究可水解单宁诃子酸和特里马素i对氯化高铁血红素和丁酸钠诱导k562细胞红系分化的影响。方法四甲基偶氮噻唑蓝法分析诃子酸和特里马素i对k562细胞生长的影响，联苯胺染色法检测血红蛋白合成情况，应用免疫荧光和流式细胞术检测血型糖蛋白a在细胞表面的表达。结果诃子酸和特里马素i在0.04～0.09？mmol／l浓度下均可显著抑制k562细胞的生长增殖。2种单宁化合物(0.002～0.01？mmol／l)可显著抑制丁酸钠诱导的k562细胞血红蛋白合成，2种单宁化合物(0.01～0.05？mmol／l)还可显著抑制氯化高铁血红素诱导的血红蛋白合成，特里马素i(0.01？mmol／l)还抑制丁酸钠诱导的gpa在细胞表面表达。结论诃子酸和特里马素i对红系分化有抑制作用。

The formation of charge transfer complex was studied in the first part. The second part includes the synthesis and characterization of the acrylated unsaturated polyester and the kinetic studies on the Ar-UPE/ triethylene divinyl ether (DVE-3) photocuring system, the rheology and properties of film after photocuring. The third part includes the synthesis and characterization of the urethane modified unsaturated polyester and the kinetic studies on the PU-UPE/DVE-3 photocuring system, the rheology and properties of film after photocuring. The fourth part includes the synthesis and characterization of the vinyl ether end capped polyurethane and the kinetic studies on the VE-PU/DVE3 photocuring system, the rheology and properties of film after photocuring.

整个研究工作分为四个部分：一是电荷转移复合物的研究；二是丙烯酰氧基化不饱和聚酯的合成，表征，Ar-UPE/二缩乙二醇二乙烯基醚（DVE-3）体系光固化动力学研究以及Ar-UPE/DVE-3体系流变性能和光固化后涂膜综合性能的研究；三是氨酯改性的不饱和聚酯的合成，表征，PU-UPE/DVE-3体系光固化动力学研究以及该体系光固化后涂膜综合性能的研究；四是乙烯基醚封端的聚氨酯的合成，表征，VE-PU/马来酸二甲酯体系光固化动力学研究以及VE-PU/DMA体系流变性能和光固化后涂膜综合性能的研究。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失