查询词典 electron-volt

According to the Aufoau build-up principle and the order of filling atomic orbits, the valence electron configuration of ground state atoms of the d-block transition elements seems only to be (n - 1 ) dx-2 us2x here denotes the number of the electron in (n - 1 d and us orbits.

众所周知，元素周期系过渡元素基态原子价电子组态的多样化是已往的原子构造理论无论是从定性还是从定量方面都是迄今难以给出圆满理论解释的原子构造现象之一［1～11］。

Result and conclusion: The electrochemical experimental results show that the two totally irreversible oxidation peaks in the region of 0.3-1.2 V vs SCE for both MT and SR were observed,and the electrode reactions processes were diffusion-controlled.Their electron transfer number n and electron transfer coefficient α were obtained by CV and electrolysis with coulometry.The diffusion coefficient D and rate constant k f were also calculated by CC and CA.

结果与结论：在0.30~1.2 V电位窗口内，MT和SR均产生1个不可逆氧化峰，并且它们的电极反应均受扩散步骤控制；用控制电位电解库仑法和循环伏安法得到MT和SR的电极反应电子转移数n和电荷转移系数α，运用计时库仑法和计时电流法测定了它们的扩散系数 D 及电极反应速率常数kf。

Using the valence electron orbit energy E(subscript i and number of valence electron shell n(subscript i, a new connectivity topological index (superscript mE was proposed from δ.

利用价电子轨道能量E和价电子层数n，构建了新的原子点价δ，由点价δ构建价电子轨道能量拓扑指数E。

The weak base anion exchange resin with covalent bond side chains which contain donator atom N offering unshared electron pairs, is able to form a coordinative covalent bond to heavy metal in which unsaturated vacant orbits exist in its electron shells.

在天然淡水水体的环境下，重金属被树脂吸附源于树脂胺基官能团上的N原子有孤对电子，水中所含重金属的价电子层有空轨道。

Acting as an antenna molecule in the supramolecular system, Mg(superscript 2+)-HA remarkably enhances the photoinduced electron transfer efficiency between C60 and an electron donor, N, N-dimethylaniline.

作为超分子体系中的光捕获分子，Mg(上标 2+)-HA能显著地提高C60与N，N-二甲基苯胺的光诱导电子转移反应效率，生成的C60负离子自由基的电子自旋共振光谱信号强度比未加入Mg(上标 2+)-HA时增强了9倍左右。

This research work has an emphasis on the transformations of the weldments microstructure by the means of the scanning electron microscope, and the transmission electron microscope, both before and after the service of the inner cover of the austenitic stainless steels under the ultrahigh temperature. Its service behavior under the ultrahigh temperature status is also analyzed. This study provides reliable information for the industrial production and a valuable reference for further theoretical investigations.

本工作侧重于研究奥氏体耐热不锈钢内罩在高温服役前后，其接头焊缝组织中发生的转变，应用扫描电子显微技术和透射电子显微技术等手段，对焊缝显微组织进行研究，分析它在超高温条件下的服役行为，为工业生产部门提供可靠的信息，为进一步的理论研究提供一点参考价值。

Under the same conditions, activity of thiolphenol is much lower than that of thiols. An electron withdrawing group on the benzene ring can decrease the reaction activity, but an electron donating group on the aliphatic compound can increase it.

在相同的反应条件下，苯硫酚的反应活性明显低于硫醇的反应活性；巯基化合物中吸电子基团会使反应活性降低，而推电子基团会使反应活性提高。

The spectroscopic properties (λ〓〓,λ〓〓,φ,τ, k〓, k〓) of 〓 were also measured. It was found that the energies of absorption and emission maximum is red-shifted for both electron-withdrawing and electron-donating substituents compared to that of parent 〓 complex.

发现无论X是吸电子取代基还是给电子取代基，配合物的吸收峰和发射峰与母体化合物〓相比均向红移；常温下，具有吸电子基的配合物与具有给电子基的配合物相比，有较高的发光量子产率和长的激发态寿命。

After the exposure, the retinas were examined with light and electron microscope. results: under light microscope, irregular nucleoplasm and unclear border of nucleus in the ganglion cell layer were found in the experimental groups of 2 h, 12 h and 24 h. these changes were also found in the inner nucleus layer. under the electron microscope, swollen mitochondria and vacuolized endoplasmic reticulums were found in all the layers of retina in the groups of 2 h, 12 h and 24 h, most obvious in the group of 24 h. in the group of 72 h, only lightly swollen mitochondria and dilated endoplasmic reticulums were found in the ganglion cell layer of retina.

结果： 光镜：实验组中2，12及24 h组均可见视网膜神经节细胞层内细胞核出现核质不均匀，核边界不清，内核层细胞核也有同样改变；电镜：实验组中2，12及24 h组视网膜各层均出现线粒体肿大，内质网空泡样变，以24 h组最为严重，72 h组仅见视网膜神经节细胞层出现轻度线粒体肿大，内质网扩张。

The third term is the sum of the electron-electron Coulombic repulsions.

这是一条翻译中的条目。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。