分子的

The thermal decomposition of tyrosine was studied by the methods of DTA and TG. The molecular geometries of tyrosine, intermediates and the products were optimized by AM1 method. The thermolytic mechanism is put forward through the results of the experiment and the calculation.

用差热曲线、热重曲线法测得了酪氨酸的热解曲线，用AM1方法优化了酪氨酸及其中间产物和产物分子的构型，计算了有关分子的键长和键级，通过对其热解过程的分析及AM1研究的结果，首次提出了酪氨酸的热解机理。

The results indicate that the PPV oligomer with biphenyl bridge is a cross form between two chains and tortuose derivative in the same chain. It reduces molecular symmetry and weakens %π-π% stacking effect among conjugated molecules in solid. This is perhaps the important factor that light-emitting diodes can increase fluorescence quantum efficiency.

结果表明，联苯桥联后的PPV齐聚物在结构上形成了链间交叉链内扭曲的构象，这种交叉扭曲的构象降低了分子的对称性，减弱了共轭分子在固体中的π-π堆积作用，这可能是减少荧光猝灭效应，提高固体发光器件效率的重要原因。

In chapter four, molecular imprinting polymers against amino acid derivatives utilizing 2-VP+AM as combined functional monomer and trimethylolpropane trimethacrylate as tribasic cross-linker were prepared and result was compared with those with the same amino acid derivative as the imprinted molecules utilizing ethyleneglycol dimethacrylate as dibasic cross-linker. It was found that cross-link intensity of the molecular imprinting polymer is higher when TRIM was utilized and baseline separation for the imprinted molecule could be achieved. When TRIM was utilized as cross-linker more molecule is imprinted during the polymerization.

第四章采用2-乙烯基吡啶+丙烯酰胺复合功能单体，考察了三元交联剂三甲氧基丙烷三甲基丙烯酸酯烙印氨基酸衍生物的情况，并与二元交联剂乙二醇二甲基丙烯酸酯烙印相同氨基酸衍生物的情况进行了对比，发现三甲氧基丙烷三甲基丙烯酸酯交联剂在较小的用量下就可使分子烙印聚合物达到足够的交联度，实现烙印分子的基线分离。

We adopt a similar discotic liquid crystalline synthesis way to synthesize target molecules 7, 11, 15, 19, 21 in this article. The target molecules have a central triphenylene core and different side chains including triphenylamine derivatives and carbazole molecules. We observe these molecules optical and electrochemical properties and the effect of hole-transport layers in organic light emitting diode.

本篇论文的研究主旨是采用类似盘状液晶的合成方式，以三伸苯作为分子的核心，藉由改变不同的三苯胺及咔唑醚基侧链来合成目标化合物7、11、15、19、21，并观察分子的光学性质变化，电化学行为，以及作为电洞传输材料在有机电激发光元件上的效果。

These so-called dark stars, named for the song "Dark Star" by the Grateful Dead , would contain mostly normal matter, in the form of hydrogen and helium molecules, but would be vastly larger (about 400 to 200,000 times wider) and "fluffier" than the sun and other stars.

这些所谓的暗恒星，是根据&感恩而死&乐队创作的歌曲《暗恒星》命名的。暗恒星中所包含的主要是普通物质，以氢分子和氦分子的形式而存在。但是暗恒星比太阳和其他恒星要大得多（大400倍至20万倍），密度也要低得多。

The intensity of the attack was so fierce, the report said, that American soldiers shot at insurgents as close as about 15 yards away, often until their weapons jammed, and at militants who shinnied up trees overhanging their positions to shoot at the Americans.

武装分子的攻击是非常猛烈的，报告说。有时美军士兵不得不向离自己只有15码远的敌人开火，美军士兵不停的射击，直到弹药卡壳为止。有些武装分子爬到美军阵地上方的大树上，居高临下向美军开枪。

In this article, first, we try to generate a coarse-grained model to simplify the force characteristics and simulate the trajectory of protein dynamics.

在这篇论文中，首先我们试著建立一个粗略的模型来简化分子动力学中过多的力学因子与及原子个数来计算分子的动态轨迹然后我们将其的振动来跟x光结晶绕射所得的温度因数作比较。

Mechanical strains also regulated the protein and mRNA expression of several differentiation markers, as well as the activation of extracellular signal-regulated kinases, p38 MAP kinase and protein kinase B in a frequency-dependent manner. Furthermore, the inhibition of p38 pathway could block the strain-frequency induced the phenotype modulation of VSMCs, neither ERKs nor Akt. Frequency of mechanical strain, not conditioned medium, regulated the phenotype of VSMCs in a frequency-dependent manner. Rho-GDI alpha was suppressed by the mechanical strain at 1Hz.

采用免疫细胞化学法检测VSMCs形态和排列的变化；RT-PCR和Western blotting检测表型标志分子α-肌动蛋白、肌球蛋白重链(SM1/2)、肌动蛋白相关蛋白SM22α和调宁蛋白(h1-calponin)的mRNA和蛋白水平的变化；抑制剂或RNA干扰阻断可能的信号调节分子的活性或表达，包括p38、细胞外信号调节激酶1/(2extracellular signal-regulated kinases， ERK1/2)、蛋白激酶B和Rho-鸟苷酸解离抑制因子(Rho-guanine nucleotide dissociation inhibitor， Rho-GDI alpha)，研究了不同频率张应变对VSMCs表型转化的影响及其调节机制。

The synthses of a new type of surfactant-sodium bis sulfuo-succinate was first reported, it could form reversed micelle with iso-octane. This reversed micellar system could extract macromolecular protein-hemoglobin as well as cyt-C.

首次报道了一种新型表面活性剂丁二酸二酯磺酸钠的合成，考察了它与异辛烷形成的反胶束体系在提取小分子的细胞色素C和相对分子质量较大的血红蛋白的行为。

Though racialism took root deeply in American history and culture, and the stubborn racialists held back the repeal of the Chinese Exclusion Acts out of various considerations. At last, the Chinese Exclusion Acts was repealed in the contending and compromising with the stubborn racialists.

所以，虽然种族歧视深植于美国的历史文化当中，顽固的种族主义分子出于各种考虑阻挠排华法的废除，最终，排华法还是在与顽固的种族主义分子的斗争与妥协中得以废除。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。