轭

The obtained results a re compared with analytic solution and those from integral equation and other me ans. It is shown that the staggered grid finite difference method combined with the Biconjugate gradient iterative solver processed with divergence correction and incomplete Cholesky decomposition procedures can efficiently improve the three dimensional electromagnetic calculation with high accuracy and stability.

经与解析方法、积分方程等其他方法的计算结果对比表明，交错网格有限差分法结合散度校正和不完全乔累斯基分解预处理的双共轭梯度迭代方法进行正演计算，速度快、精度高、结果稳定，能适应三维复杂介质的数值模拟，为三维电磁反演奠定了基础。

The first step in the pathway of bilin biosynthesis is the conversion of heme to biliverdin IX by the heme oxygenase encoded by ho1, then PCB:ferredoxin oxidoreductase encoded by pcyA catalyze BVD to 3Z-PCB.

在血红素氧化酶的作用下，血红素Ⅸ被氧化而共轭环断裂形成胆绿素IV，胆绿素IV被藻蓝胆素合成酶还原和异构化形成藻蓝胆素PCB。

The chiral polymer P-1 shows strong blue fluorescence due to the extended π-electronic structure between the chiral repeating unit-6,6'-di(4-trifluoromethyl-phenyl)-2,2'-bisoctoxy-1,1'-binaphthyl and the conjugated linker 2,2'-bipyridyl group via vinylene bridge.

手性高分子P-1能发射强的蓝色荧光，这是由于手性重复单元-6，6′-二(4-三氟甲基苯基)-2，2′-二正辛氧基-1，1′-联萘和单元2，2′-联吡啶通过亚乙烯基桥连形成共轭高分子结构造成的。

Three kinds of optically active pnthalocyanine derivatives modified with chiral 2'-methyoxy-1,1'-binaphthyl; chiral binathyl crown ether; chiral 6,6'-didodecyl- 1,1'-binaphthyl crown ether, have been synthesized and characterized, respectively.

本论文以手性联萘、手性联萘冠醚、冠醚等功能性基团为化学修饰基元，分别合成了三类光学活性酞菁衍生物和两类共轭聚合物，对它们的组装行为以及某些光、电功能性进行了研究。

A new conjugation molecule L2, based on 2,4,5-triphenylimidazole and 6-phenyl-2,2\'-bipyridine, was synthesized in two steps.

基于2，4，5-三苯基咪唑和6-苯基-2，2\'-二联吡啶，合成了一个新型的共轭分子L2。

A series of fluorene and 2,2'-bipyridine or 1,10-phenanthroline alternate and random copolymers(P1 or P2) have been designed and synthsized, and their interaction with transition metal ions were investigated.The some accomplishments were achieved as follows:(1) It is found that the absorption red shift and fluorescence quench strongly in the presence of transition metal ions.

设计合成了一系列芴与联吡啶、菲洛啉的交替和无规共轭聚合物（P1、P2），通过研究它们与不同过渡金属离子相互作用，获得如下主要成果：（1）由于过渡金属离子的作用，吸收光谱发生不同程度的红移，以及强烈的荧光猝灭现象。

The solutions of ProblemⅠ,ⅡandⅢare discussed by using the generalized conjugate gradient method. When the equation is consistent, the solutions such as symmetric, skew-symmetric, centrosymmetric, centroskew symmetric, reflexive, antireflexive, bisymmetric or symmetric and antipersymmetric are successfully found; When the equation is inconsistent, the least-squares solutions such as symmetric, skew-symmetric, centrosymmetric, centroskew symmetric, reflexive, antireflexive, bisymmetric or symmetric and antipersymmetric are also found successfully. The generalized conjugate gradient method has the following traits:(1) It can judge automatically the information of solutions.

利用广义共轭梯度法，讨论了问题Ⅰ、Ⅱ和Ⅲ解的情况：当方程相容时，研究了方程的一般解、对称解、中心对称解、自反矩阵解、双对称解、对称次反对称解及其最佳逼近等问题；当方程不相容时，研究了方程的最小二乘一般解、最小二乘对称解、最小二乘中心对称解、最小二乘自反矩阵解、最小二乘双对称解、最小二乘对称次反对称解及其最佳逼近等问题。

We have designed and synthesized a novel linear conjugated polymer. PQV was obtained via sequentially nitration, reduction, cyclization, bromination and condensation from p-xylene. And the experimental condition was optimized.

本文设计合成了一种新的线型共轭聚合物，以对二甲苯等为原料，通过硝化、还原、关环、溴化、缩聚等反应合成了PQV，并对各单元过程的合成条件进行了优化。

Methylphenyldichlorosilane is synthesized by Grignard reaction between methyltrichlorosiliane with bromobenzene.

研究发现高苯基含量的甲基苯基硅橡胶(苯基含量30mol％)具有优异的耐辐照性能，这归因于体系内存在大量的具有共轭结构的苯基基团。

Now then, get a new cart ready, with two cows that have calved and have never been yoked. Hitch the cows to the cart, but take their calves away and pen them up.

现在你们应当造一辆新车，将两支未曾负轭有乳的母牛套在车上，使牛犊回家去，离开母牛。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！