查询词典 rearrangement

It is obvious that the performance of the heuristics depends on the degree of exhaustiveness of the topological rearrangement operators on some extent.

并且，启发式算法的性能在一定程度上取决于其所采用的分支交换操作的搜索能力。

This thesis is devoted to the consideration and study of martingale space and inequality theory in the background of a rearrangement invariant function space on finite interval.

本文系统地考虑和研究了有限区间上重排不变函数空间框架下的鞅不等式和鞅空间。

Structure unit 2 was conveniently synthesized from 3-cyanopyridine by methylation, rearrangement reaction, and reduction of formyl.

以价廉易得的3-氰基吡啶为原料，通过甲基化、重排、还原三步反应合成了结构单元2。

Content structure of materials; crystal imperfection; structure of metallic surface, semiconductive oxide surface, structure of the molecular crystal surface, the rearrangement mechanism of the surface atoms and methods of surface analysis; fundamental theories about chemical processes and phenomena of plasma

课程内容：材料的结构；晶体缺陷；金属表面、半导体氧化物表面和分子晶体表面的结构和表面原子重排的机理，表面分析方法；等离子体的化学过程基础理论和化学现象及其特征；硅酸盐材料的通性和几种典型硅酸盐材料的结构，硅酸盐热力学和固相反应，硅酸盐固相烧结的过程和基本原理；典型高分子材料简介。

Content This course sets on the basis of the organic chemistry and introduces the fundamental principles and methods of organic synthesis by focusing on the classes of reactions such as halogenation, rearrangement, oxidation and reduction reaction.

课程内容：本课程建立在有机化学的基础上，着重介绍了有机合成的基本原理和方法，以反应类型为主线，如卤化反应，重排反应，氧化反应，还原反应等，在介绍一些经典的合成方法和试剂的同时，对一些较新型的试剂在合成中的应用以及反应的立体选择性和区域选择性进行了讨论。

Objective The origin and the nature of the Hodgkin and Reed-Sternberg cell of Hodgkins lymphoma has been attracting a lot of medical researchers engaged in studying it,for its character by scattered large atypical cells residing in a complex admixture of inflammatory cells.Great improvement has been made since a new method of isolation of single H/RS cells from a frozen section had been set up by KUppers in 1994,and many studies have approved of the B-cell derivation of H/RS cell.lt has been reported that H/R-S cells might partly be originated from B-cell in our research before,but at the same time,we also found that only 18.8% of H/RS cells express CD20,31.3% of immunoglobulin heavy chain rearrangement have been revealed.

目的 霍奇金淋巴瘤(Hodgkins lymphoma，HL)由于它的恶性肿瘤细胞—H／RS细胞一般只占肿瘤组织的极少部分(不到1％)，且散在分布在背景细胞间，因此对于H／RS细胞的来源和性质研究一直是人们探索的目标。1994年德国科隆大学Kūppers等发展了一种从冰冻组织切片上用显微操作仪挑取单个H／RS细胞的显微切割方法进行H／RS细胞基因分析后，人们对H／RS细胞来源的研究有了突破性的进展，多数支持B细胞来源。

The mechanism of Hofmann rearrangement reaction and the effects of alkyl structure and nucleophilic reagent in medium on the reaction are discussed.

讨论了Hofmann 重排反应的机理以及烃基的结构、介质中的亲核试剂对反应的影响，并介绍了此重排在有机合成中的应用。

New compounds of the type of N--N'-(2,4-dichlorophenyloxyacetyl)-semicarbazides were synthesized by a series of reactions of preparing organic isocyanates by Curtius rearrangement with 2,4- dichloro aryloxyacetic acid hydrazide using one-pot procedures.

以芳香取代酸为原料，用Curtius重排的方法合成异氰酸酯，直接与2，4-二氯苯氧乙酰肼作用，一锅法合成了4种N-取代芳基-N'-(2，4-二氯苯氧乙酰基)氨基脲类化合物。

In chapter 4,by the inversion technique and the series rearrangement,we find two kinds of transformation formulae of the basic hypergeometric series.

第四章结合反演技巧和级数重排的方法研究基本超几何级数。

The function rearrangement is an important union of the geometry and the integral theory, the people very early use it to solve some problems in mathematics analysis.

中文摘要函数的重排是几何与积分理论的一个重要结合，人们很早就利用它来解决分析数学中的一些问题。

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。