查询词典 diatomic molecule

Here we, for the first time, apply the area per molecule of compound measured by Langmuir film technique as a characteristic of its amphiphilic property of compounds with similar structures.

我们这里首次利用两亲化合物Langmuir膜中的单分子面积来判断同系列两亲化合物的两亲性。

When determining/working out/predicting the shape of a molecule, we need to consider the fact that the repulsions between lone pairs and other pairs are stronger than those between bonding pairs and other pairs.

P18 在推测分子形状时，我们需要考虑孤对电子对其它电子对的斥力比成键电子对对其它电子对的斥力大。

Cleavage regents of nucleic acid are an active field in biochemistry and biology of molecule.

核酸切割试剂一直是生物化学和分子生物学中最为活跃的前沿领域之一。

In the present studies, the laser flash photolysis and the pulse radiolysis techniques have been first introduced into occupational medicine field of free radical research, and the biophysical chemistry techniques have been used to supply the theoretical basis of oxidative-antioxidative defense system disorders caused by 〓 on molecule level.

本研究首次在自由基职业医学领域引进激光光解和脉冲幅解研究技术，应用生物物理化学研究手段为〓致机体抗氧化防御体系平衡紊乱机理提供了分子水平的理论依据。

The results of its intrinsic fluorescence spectroscopy and fluorescence phase diagram showed that when the guanidine hydrochloride concentration in denaturation solution was about 1.0 mol/L, there existed a partially folded intermediate of Bacillus amyloliquefaciens a-amylase during its unfolding procedure, which followed a three-state model; the result of its fluorescence probe showed that when the guanidine hydrochloride concentration in denaturation solution was about 1.0 mol/L, there existed some stable hydrophobic regions, which could interact with a hydrophobic reagent 8-anilino-1-naphthalene sulfonic acid, in the partially folded intermediate of Bacillus amyloliquefaciens a-amylase; and the results of fluorescence quenching using acrylamide and potassium iodide as quenchers showed the distribution of Trp residues in Bacillus amyloliquefaciens a-amylase in different denaturation solution, with the maximum number (8) of tryptophan residues in a partially folded intermediate Bacillus amyloliquefaciens a-amylase molecule could be quenched by potassium iodide; and the results of their protein electrophoresis and SEC showed that no aggregate or aggregate precipitation of Bacillus amyloliquefaciens a-amylase formed during the whole unfolding procedure of Bacillus amyloliquefaciens a-amylase induced by guanidine hydrochloride.

内源荧光光谱和荧光相图结果表明，当变性液中盐酸胍浓度约为1.0 mol/L时，芽孢杆菌a-淀粉酶的去折叠过程中出现一个部分折叠中间体，其去折叠过程符合&三态模型&；荧光探针结果表明，在溶液中盐酸胍浓度约为1.0 mol/L时，中间态芽孢杆菌a-淀粉酶分子中存在着能够与探针分子1-苯胺基-8-萘磺酸结合的稳定的疏水区域；荧光猝灭研究给出了不同程度变性的淀粉液化芽孢杆菌a-淀粉酶中的Trp的分布情况，结果表明中间态芽孢杆菌a-淀粉酶分子中能够被碘化钾猝灭的位于分子表面的色氨酸残基数目达到最大的8个；蛋白电泳和体积排阻色谱结果表明，在盐酸胍诱导的芽孢杆菌a-淀粉酶分子的整个去折叠过程中，不会以共价键或非共价键形式形成芽孢杆菌a-淀粉酶分子之间的集聚体或集聚体沉淀。

The results of its fluorescence probe showed that when the guanidine hydrochloride concentration in denaturation solution was about 1.0 mol/L,there existed some stable hydrophobic regions,which could interact with a hydrophobic reagent 8-anilino-1-naphthalene sulfonic acid,in the partially folded intermediate of Bacillus amyloliquefaciensα-amylase;with the denaturation concentration increasing,the stable hydrophobic regions disappered.the results of fluorescence quenching using acrylamide and potassium iodide as quenchers showed that using acrylamide as quenchers,with the protein denaturation extent increasing,the number of Trp that can be quenched increased untill all the Trp residues were quenched;Using potassium iodide as quenchers,with the maximum number(8) of tryptophan residues in a partially folded intermediate Bacillus amyloliquefaciensα-amylase molecule could be quenched by potassium iodide;with the denaturation concentration increasing,the number of Trp that can be quenched decreased to 5.the results of their protein electrophoreses and SEC showed that no aggregate or aggregate precipitation of Bacillus amyloliquefaciensα-amylase formed during the whole unfolding/refolding procedure of Bacillus amyloliquefaciensα-amylase induced by guanidine hydrochloride or urea.

ANS外源荧光探针结果表明：盐酸胍诱导的芽孢杆菌α-淀粉酶分子去折叠过程中存在着能够与探针分子1-苯胺基-8-萘磺酸结合的稳定的疏水区域；而随着芽孢杆菌α-淀粉酶分子在盐酸胍溶液中变性程度的加深，这一疏水区域逐步被瓦解。丙烯酰胺和碘化钾猝灭结果表明：在盐酸胍溶液中，随着芽孢杆菌α-淀粉酶分子变性程度的进一步加深，其分子内能够被丙烯酰胺接近的色氨酸残基逐渐增多，直至全部被猝灭。但位于芽孢杆菌α-淀粉酶分子表面的能够被碘化钾猝灭的色氨酸残基，在中间态芽孢杆菌α-淀粉酶分子中数目达到最大的8个，而随着其分子变性程度的进一步加深，反而减少至5个。

The Quamtum Mechanical Bound State calculation has been carriedout to study the selective adsorption of 〓 molecule on Ag(110) sur-face, by which the resonance states and the corresponding eigenvaluesare obtained. There is a good agreement between the quantal and theclassical results in the range of incident energies above thepotential barrier where tunneling effect is not important.

用准经典轨迹方法对〓(110)系统进行了研究，分析了氧分子在Ag(110)表面上的散射，离解和选择性吸附等过程，并对这些过程中分子内部能量的重新分布进行了分析，这些分析揭示了分子—表面相互作用的微观机理。

A theoretical study on geometric structure of the Qinghaosu molecule has been Carried out by ab initio method of the Quantum Chemistry.

文章用量子化学从头算法，研究了青蒿素分子的几何结构，结果表明青蒿素分子的构型、键距、键角、二面角C1-O24-O23-C20等参数与X—射线分析测定值十分接近。

Results Excepting Qinghaosu 50mg/kg/d group, The murine auricle weight difference of left and right 24hours after stimulation, the infiltration of mononuclear cell, the level of Interferon-gamma in serum and the expression of intercellular adhesion molecule 1(ICAM-1) were significantly decreased in the other groups of different concentrations of Qinghaosu, FK506 and Qinghaosu combined with FK506, as compared with control group, and the effect of Qinghaosu was related to the dosage within a certain dosage range.

结果 除青蒿素50mg／kg／d剂量外，青蒿素其它各剂量组、FK506与青蒿素联合用药组及FK506组与对照组比较，对照组的耳片肿胀程度、单一核细胞浸润程度、IFN-γ及ICAM-1的表达水平均明显高于其它各组，且有统计学意义(P＜0.05)。青蒿素在一定剂量范围内有一定的量效关系。

The gas-to-powder conversion is carried out following the route: DMS pyrolyzes and forms product molecule and molecular clusters, the product molecular clusters that grow to and above the critical size by random collisions with molecules and other clusters become elementary particles, the elementary particles grow further by collisions and fusion with molecules, clusters and other elementary particles to form resulted SiC particle.

论文采用TEM、HREM、XRD、IR、NMR、中子衍射、Raman光谱和定量化学分析、光透沉降粒度分析等手段，对制备得到的纳米SiC粉体进行了系统表征研究，并研究了SiC纳米粉体的成核、生长、晶化过程和机制，指出化学气相反应法制备SiC纳米粉体的过程是一个均匀成核→核子生长形成初始颗粒→初始颗粒熔融碰撞→产物粉体的过程。

Wenxing consistently adheres to the principle of "trict Management,All Member Participation,Quality First,Users Foremost" and follows the business philosophy of excellent quality,highly active and pursue excellence,thus outdoing its counterparts in terms of technology,production scale and administration.

文兴一贯秉承&严格管理、全员参与、质量第一、用户至上&的企业方针，遵循优质、高效和追求卓越的经营理念，从而实现在技术上、规模上、管理上处于同行领先地位。

The left atrium of the guinea pigs was innervated by the two afferent system.

豚鼠左心房受心脏的两个传入系统的双重支配。