查询词典 molecule

As an achievement through grasping revolution and promoting production, the crystal structure of the insulin molecule has been determined at 1.8A resolution by X-ray analysis by the method of multiple isomorphous replacement and anomalous scattering.

运用X射线分析的多对同晶置换加反常散射法，在取得了2.5埃分辨率结果的基础上又进一步确定了1.8埃分辨率猪胰岛素分子的三维结构。

Together they model the structure of DNA as a 2 chain helical, with antiparallel properties and the bases facing inward paired to hold the molecule together.....

他们一起制出反向平行特性，和维繫住＜双股＞分子的朝内配对硷基，＜这种＞DNA双股螺丝的模型。。。。。

By virtue of method of continuum approximate limit, we obtained the solitons of the vibration of lattice in one-dimensional harmonic and inharmonic chains of polarized molecule, under the conditions considering and inconsidering the interaction of exciton with phonon, through solving moving equations of exciton and phonon.

运用连续极限近似方法，通过求解声子和激子的运动方程，得到了在不考虑激子与声子的相互作用和考虑激子与声子相互作用两种情况下的极性分子简谐链和非简谐链中晶格振动的孤子解，并得出了激子与声子的相互作用的非线性效应类似于晶格三次势的非线性效应，以及相同的非线性效应不论是同时作用还是单独作用都具有相同的非线性效应的结论。

Koopmans theorem is an approximation in molecular orbital theory , such as density functional theory , or Hartree-Fock theory, in which the first ionization energy of a molecule is equal to the energy of the highest occupied molecular orbital, and the electron affinity is the negative of the energy of the lowest unoccupied, i.e.

如同密度泛函理论或者Hartree－Fock理论，分子轨道理论中常用到的Koopmans 定理也是一种近似。

Objective: To explore the relationship between corneal storage methods and rejection after corneal transplantation, and to study the roles of intercellular adhesion molecule-1 (ICAM-1) and tumor necrosis factor-α in aqueous humor and serum in keratoplasty rejection in rats.

目的：探讨角膜保存时间与术后免疫排斥反应的关系，检测角膜植片的细胞间黏附因子-1（ICAM-1）表达及房水、血清中肿瘤坏死因子-α含量与角膜移植排斥反应的关系。

Methods Sequence specific primers-polymerase chain reaction was used for the detection of genotypes and alleles of rs3850641 A/G loci in OX40L gene in 187 PACS cases (≤55 years) and 138 controls. Diseased vessel numbers and stenostic severity integral by coronary arteriogram and serum levels of sOX40L, C-reactive protein and vascular cell adhesion molecule-1 (VCAM-1) by enzyme-linked immunosorbent assay and nephelometry were measured. The relationship between OX4OL gene variants and PACS risk, SSI as well as plasma levels of three cytokines were analysed.

采用聚合酶链反应－序列特异性扩增技术检测187例年龄≤55岁、早发急性冠状动脉综合征患者和138例冠状动脉造影正常者rs3850641位点A/G变异的基因型、等位基因及其分布频率；采用冠状动脉造影测量病变血管支数和狭窄程度积分；应用ELISA法测试血浆sOX40L、血管细胞黏附分子(VCAM-1)；应用散射比浊法测试血浆C反应蛋白水平；分析OX40L基因变异与ACS风险、冠状动脉病变程度和血浆3个细胞因子之间的关系。

Lots of attentions of astrochemists and astrophysists were devoted to the investigation of the complexes built with LiH molecule owing to the important role in astrochemistry.

由于LiH分子在宇宙化学中具有重要作用，含LiH分子的弱相互作用体系吸引了越来越多的天体物理学和天体化学工作者的研究兴趣。

In order to determine the fractal dimension of the interface, structures with different rotation radii are set in the transition region. By using above regulation, the number of surface molecules of each rotation structure with certain radius can be obtained, then correlate these molecule numbers with the corresponding radii, in a logarithmic coordinate system the asymptotic slope of the correlated curve is the fractal dimension of the liquid-vapor interface.

为了确定界面的分形维数，在气液过渡区中作出不同回转半径的结构，利用（2～5）/1.2r〓规则找出其中所包含的气液界面上的分子数，然后将这些分子数与回转半径关联，在双对数坐标中此关联曲线的渐近斜率便是气液界面的分形维数。

" Orbital Mathematical expression, called a wave function, that describes properties characteristic of no more than two electron s near an atomic nucleus or molecule."

轨道：数学表述，称为波函数，它描述原子核附近的或分子中的原子核系统附近的电子不能多于两个这一特性。

A hydrogen molecule consists of only two hydrogen atoms with the same atomic weight.

氢分子仅由两个原子量相同的氢原子组成。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。