不对称的

This paper is focused on the preparation, characterization of metal clusters and theircatalytic performance in the enantioselective as well as stereoselective hydrogenations. It iscomposed of the five parts as follows: Chapter 1 A review was given on the two most studied enantioselective systems—Ni/TA and Pt/cinchona system, including some recent progress.

本论文研究了铂、铱纳米金属簇在α-酮酯、α-二酮不对称氢化中的催化性能及金属离子在α-二酮立体选择性氢化中的修饰作用，主要分为以下几部分：第一章对多相不对称催化体系一Ni／TA和Pt／cinchona及其一些最新进展作了较系统的评述；同时简要介绍了纳米金属簇的特性及其在催化中的一些应用。

Through establishing the business enterprise trustworthiness with the gene ral model of game and the model of the repeated game,this text discuss es the be havior of business enterprise in the term of dissymmetry information,and gets a conclusion that the business ent...

出现这一矛盾的根源，在于信息的不对称分布，本文通过建立企业诚信的一般博弈模型和重复博弈模型，讨论不对称信息环境下企业的行为选择，得出企业追求长期利益会导致诚信的结论。

Started from D-tyrosine, we obtained the tetramic acid 96 using Jouin reaction. The assembly of the second fragment 109 was stared from 1,4-butandiol,using asymmetric alkylation reaction developed by Oppolzer as a key step. Coupling of the tetramic acid 96 with 109 provided the key intermediate 110 according to Yoshii\'s procedure. After remove protective group and Sharpless epoxidation, we obtained the key intermediate 113. Its macrocyclization to form the final product is in progress.

本论文的第二章主要对Macrocidin A开展了合成工作，我们从D构型的酪氨酸出发，经过官能团转换；利用Jouin反应生成Tetramic acid 96，另外一个片断从1，4-丁二醇开始经过多步反应生成碘化物104，利用Oppolzer发展的手性樟脑磺酰胺为辅基参与的不对称烷基化反应，引入手性甲基，生成关键中间体109，接着通过Yoshii发展的方法连接96和109生成110，经过Sharpless不对称环氧化反应建立环氧化合物，然后脱去保护基得到关环前体113，分子内的Mitsunobu反应进行关大环反应正在进行之中。

The principle of harmonic wave detection which is based on wavelet transform was expatiated. It introduced a new approach of harmonic measurement based on period-interleaving of arithmetic for dissymmetrical system.

首先论述了基于小波变换的谐波检测的原理，根据目前小波变换在三相不对称系统谐波检测中存在的无法分离基波信号之不足，介绍了一种用于三相不对称系统的基于周期交错的测量方法。

An contemporary expansion of the model has assumed evidently that asymmetric information spreads among firms and customers , and explored their differently asymmetric behaviors of responding to others ' changes of pricing and the causes of sticky prices so that the problem field of model has been expanded from oligopolistic market to monopolistically competitive market .

模型当代的一个扩展，明确假设了在顾客与厂商之间信息分布不对称，探讨了他们对于价格变动的反应不对称行为的各异性和粘性价格的成因，将微观模型的问题域从寡头市场扩展至垄断竞争市场。

An contemporary expansion of the model has assumed evidently that asymmetric information spreads among firms and cuscy110ers, and explored their differently asymmetric behaviors of responding to others' changes of pricing and the causes of sticky prices so that the problem field of model has been expanded from oligopolistic market to monopolistically competitive market.

模型当代的一个扩展，明确假设了在顾客与厂商之间信息分布不对称，探讨了他们对于价格变动的反应不对称行为的各异性和粘性价格的成因，将微观模型的问题域从寡头市场扩展至垄断竞争市场。

Finally, analyse the calculated results of this ship with another catamarans. From this result obtained unsymmetrical catamaran hull of this particular special vibration mode and analyse the vibration mode in order. The calculation is fairly reasonable, for the future of the asymmetric catamarans to calculate the vibration analysis of a number of reference.

最后将本船计算结果与另一艘双体船计算结果进行了比较分析，得到不对称双体船这种特殊船型的特殊振动模态，并就其振动模态出现次序进行了比较分析，说明本次计算是比较合理的，为今后不对称双体船的振动特性分析计算提供了一些的参考。

The frequency and amplitude of wake force were deduced theoretically, while the influence of stator sector distribution and stator vane quantity on the wake force of vane was also discussed. Transient analysis was conducted for the forcing response of rotor blades under the same stator sector distribution and different quantities of stator vane, so an optimum asymmetry stator mistuned design was developed.

对不对称静子叶片非谐情况下激振力频率幅值进行推导，讨论了静子扇区分布和静叶数目选取对尾流激振力的影响，并对相同扇区分布不同静叶数目情况下转子叶片的强迫响应进行瞬态分析，给出不对称静子非谐设计的最优方案。

The patient is rotated, as shown by asymmetric comparable ribs in relationship to the pedicles and asymmetric position of the claicles – note the right end of the claicle is quite laterally positioned

患儿拍片位置有点旋转，可以通过椎骨旁的肋骨不对称和锁骨的位置不对称判断出来－注意锁骨的右侧末端位置偏了许多。

We adopted the new decomposition approach of the DBHF G-matrix, which was recently proposed by Schiller and Muether and calculate the Dirac structure of the nucleon self-energy.

论文重点讨论了不同密度和不对称系数对不对称核物质中质子和中子的光学势的影响，分析表明，质子和中子的光学势随β值的变化规律相反。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。