轭

The results showed that silver ion can complex with segregative carbon-carbon double bonds in DHA ester, with isolated C=C bonds in allyl ether and with conjugate C=C bonds in benzene individually.

研究结果表明，银离子可以与DHA乙酯的隔离碳—碳双键、烯丙醚的孤立碳—碳双键及苯的共轭碳—碳双键形成络合物。

The divisible semiring congruence on S was characterized. A one-toone, inclusion-preserving mapping from the set of full, closed, self-conjugate subsemirings of S to the set of divisible semiring congruence on S was established. A result for the divisible semiring congruence lattice was obtained.

给出了这类半环上可除半环同余的一种刻画，建立了S上的可除半环同余与满、闭、自共轭理想子半环的保序一一对应，得到了可除半环同余格的一个结果。

It is noteworthy that the "dimmer" in BSiSDTFO did not represent the excimers because of the unique interrupting structure in the presence of spiro framework.

另外，存BSiSDTFO的二聚可能并不代表激基复合物的形成，这可能是由于螺中心的共轭阻断所导致。

Using thienyl stannane and palladium-catalyzed, 1,4-di(5'-carbaldehyde-thiophen-2'-yl)-2,5-dioctyloxy-benzene was synthesized by four steps, the structure was determined by NMR, IR and elemental analysis.

由于目标产物(5)本身具有多芳环共轭体系，其荧光效应相当强烈，在氯仿溶液中紫外-可见吸收和荧光发射的最大波长分别为413nm和477nm，固态荧光发射波长为504nm

Four kinds of flexible epoxy resins C〓DGE, C〓TGE, C〓TGE, C〓DGE were synthesized from conjugate acids of stillingia oil, Amony them, C〓DGE and C〓 TGE were not reported at home and abroad, C〓DGE and C〓DGE were not reported at home.

本文利用梓油共轭酸，合成了C〓DGE、C〓TGE、C〓DGE、C〓DGE四种可挠性环氧树脂系列产品。其中，C〓DGE及C〓TGE在国内外均无报道，而C〓DGE及C〓DGE在国内无报道。

The two-photon absorption cross-sections of these styryl derivatives were determined by Z-scan technique, and the benzothiazolium derivatives exhibited the largest TPA cross-sections (10〓s·cm〓/photon) and the best power limiting ability at high operable incident intensity. The results show that the benzothiazolium derivatives are promising organic compounds as two-photon absorption optical limiting materials. 2. Several organic dyes active to 800nm femtosecond laser with D-π-A structure were designed and synthesized.

研究了它们的上转换荧光、上转换激射和光限幅行为，通过改变染料分子共轭体系的大小，首次实现了在576nm-635nm范围内的双光子上转换激光波长的调节，其中噻唑啉碘盐类二苯乙烯化合物的双光子上转换激射峰（576nm）是迄今在1064nm皮秒激光作用下能够得到的最短波长的激光；阴离子显著改变上转换激射效率，但对上转换荧光峰和激射峰的位置影响很小；增加溶液的浓度，上转换荧光光谱和激射光谱红移，并在一定的浓度范围内，能够有效的提高上转换激射效率；利用Z-扫描技术测定了染料分子的双光子吸收截面，发现苯并噻唑类染料分子的双光子吸收截面高达10〓s·cm〓／photon，而且在较大的入射光强范围内，这类染料分子具有较大的光限幅能力，是一类作为双光子吸收光限幅材料很有潜力的染料分子。

ABSTRACT : Based on the general circuit model of inter-phase power controller, the basic relationship of steady-state voltage of IPC is analyzed in this paper. Consequently a new concept is proposed to describe the basic feasible region of steady-state voltage of tuned IPC and its basic forms is defined under the conditions of tuned parameters. On the basis of aforementioned work, the respective regions in case of equivalent load in receiving end, susceptance of inductor and capacitor and parameters of phase shifter meeting the requirements of basic feasible region of voltage is mainly analyzed. Finally, the differences of feasible region of various TIPC with simulations are given.

首先，基于相间功率控制器的通用电路模型，分析了IPC稳态电压的基本关系；其次，针对参数共轭条件，提出并定义了调谐型IPC正常稳态运行电压基本可行域的概念及其基本形式，并在此基础上，重点解析了受端等效负荷、电容和电感的电纳、移相环节参数在满足电压基本可行域的前提下各自应该界定的基本可行域；最后，通过典型TIPC的仿真分析，说明了不同TIPC在基本可行域方面存在的差异。

"A heavy weight of hours has chained and bowed, One too like thee: tameless, and swift , and proud."

这被岁月的重轭所制服的生命原是和你一样：骄傲、轻捷而不驯。

A heavy weight of hours has chain'd and bow'd One too like thee: tameless, and swift, and proud.

这被岁月的重轭所制服的生命原是和你一样：骄傲、轻捷而不驯。

The mechanism of clonidine conformational isomerization and tautomeric reaction has been studied and the geometric parameters of transition states have been located by B3LYP/6-31G**.

为了考察氯苯的共轭效应对可乐定互变异构体稳定性的影响，在B3LYP/6-31G**水平上，研究了2-氨基-2-咪唑啉的互变异构化反应机理。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。