查询词典 o-dihydroxybenzene

Transition probabilities, oscillator strengths, and lifetimes of configurations, multiplets, and individual lines for many-electron atoms and ions are studied employing the WBEPM theory. Transition probabilities and oscillator strengths for alkali metal atoms, alkaline-earth elements Be, Mg, Be , and Mg , carbon atoms and its ions , nitrogen atom and its ions , oxygen atoms and its ions , fluorine atom, Ne , and IB elements are calculated. Lifetimes of C, N, and O atoms are evaluated as well.

运用WBEPM理论对多电子原子和离子的组态、谱项和能级间的跃迁几率、振子强度以及辐射寿命进行系统地研究，计算了碱金属原子、碱土金属的Be、Mg原子及其一价离子、C原子及其离子、N原子及其离子、O原子及其离子、F原子、Ne离子和重金属IB族原子的跃迁几率和振子强度以及C、N、O原子的辐射寿命。

The Zn-Ti distances are 0.369 nm and 0.335 nm for the single-corner adsorption mode and double-corner adsorption mode, respectively. Therefore, the EXAFS fitting data, R1=0.371 nm, R2=0.332 nm, can be well distinguished for SC and DC mode respectively. The calculation results also showed that the optimized Zn-O average distance of Zn-O tetrahedron is about 0.200 nm, which agree with the EXAFS results.

用DFT方法对四配位水合Zn离子在簇Ti2O11H14上进行优化后发现，四配位的Zn-O平均距离为0.200nm；外层Zn-Ti结合存在两种稳定的吸附模式：单角吸附模式和更加稳定的双角吸附模式，其Zn-Ti距离分别为0.369和0.335nm。

The results indicate that improving temperature to reflux, using low polarity solvent as dispersion medium and proper molar ratio of tetrabutyl titanate to stearic acid can bring out good modification. The function of tetrabutyl titanate is to react with the surface hydroxyl groups and adsorbed H2O on the powder particles to produce new binding sites such as M—O—Ti—OC4H9and M—O—Ti—OH, which can easily react with the carboxylic acid. As temperature increases from room temperature to reflux temperature, the reactions between RCOO- and Ti change from coordinate bonds to covalent bonds, which makes the carbon chains of stearic acids more strongly bound with the powder particles surface.

研究结果表明，提高处理温度、适当增加复合改性剂中硬脂酸的量并选用极性弱的有机溶剂可达到比较理想的改性效果；钛酸四丁酯的作用是与粉体粒子表面的羟基以及吸附水反应产生偶联点，如M—O—Ti—OH，这些偶联点易于与羧酸反应；在低温时RCOO-与偶联点的Ti之间以配合物的形式发生作用，在回流温度下处理时，主要发生酯化反应，使硬脂酸更牢固地嫁接到粉体粒子表面，改性效果更好。

Another MCU, 89C2051 is used to realize the control of the three rows LED monitor showing coordinates of axis X and Z axis and other state of the system. Charnel A and C of 8155 are used for editor keyboard, which make the inputting or editing of the NC code and data possible. Charnel P1 of 8031 is used for the operation keyboard such as system power on/off and movement of axis X or Z. a programmable parallel I/O chip, 8255, is used to achieve system I/O and the transmission of other information. In summarize, the system developed is characterized by its simplicity, low development cost and high reliability.

在CPU存储器扩展电路设计中， CPU选用MCS-51系列的8031单片机，外扩32K的程序存储器和 8K的数据存储器，分别用于存放系统管理程序、数控加工程序以及运算数据；在显示电路设计中，选用MCS-51系列的89C2051单片机作为从CPU，控制三排LED显示器，用于X轴、Z轴动态坐标以及相关数字的动态显示；在手动键盘和编辑键盘设计中选用8155芯片的PA口和PC口作为行、列母线，扩展矩阵式编辑键盘，用于程序和数据的输入或编辑，同时选用8031单片机的P1口扩展手动键盘，用于系统启动、停止以及运动部件在X、Z轴方向的手动控制；在I/O口扩展电路设计中选用8255芯片扩展输入输出口，用于接收和传送开关量及相关信息。

The results show that the Raman peaks of N-N and O-H stretching vibration in nitrogen hydrates are observed at 2322.4cm-1 and 3092.1cm-1, respectively, which are very similar to those in natural air clathrate hydrates.

结果表明，氮气水合物中的N-N和O-O键的拉曼峰分别为2322.4cm-1和 3092.1.8cm-1，与天然的空气水合物中的数据十分接近。

Also in this dissertation, in order to assist the project of simulating cometary spectra of H〓O〓 as proposed by Kawakita and Watanabe Ap.

为了协助Kawakita和Watanabe[Ap.J.574（2002）L183-L185]提出的H〓O〓彗星光谱的理论模拟和进一步标识H〓O〓的实验谱线，本文首次利用偶极矩的从头计算结果计算了振动跃迁矩及谱线强度。

O Arrogance is followed by destruction , unbridled conceitedness , by degeneration ; it is not necessary to defeat the others to make our own success.

o 骄傲的后面是毁灭，狂妄的后面是堕落。o 为了放射自己的光，无需吹熄别人的灯。

Cathodoluminescence and δ〓O、δ〓C values of the sparites of geopetal structures within fossil brachiopods indicate that the sparcalcites were formed in equilibrium with various stages of postdepositional digenesis or catagenesis with each stage's δ〓O of interstitial water different.

3碳酸盐岩早期成岩胶结物或孔洞充填中的亮晶方解石是除腕足化石外获取碳酸盐岩原始氧、碳同位素组成的又一种常用样品。但本论文研究发现，龙门山地区碳酸盐岩的成岩后生改造具有多期多次现象，不同改造期次的流体之间存在明显的δ〓O差异，但无明显的δ〓C差别。

Rate constant of ONOO〓 formation, which is access to diffusion-controlled limit, is as three times as that of dismutation of O〓〓· by superoxide dismutase, and much faster than that of reaction of NO with hemecontaining proteins, thus demonstrating that ONOO〓 can form as long as NO meets O〓〓· during their diffusion in biological milieu.

ONOO〓在体内生成有较充分的理论依据。ONOO〓的生成速率接近于受控制的弥散极限，比超氧化物歧化酶歧化O〓〓·的速度快3倍，远远超过NO与血红素蛋白的反应速度。

Methods: Solubility and water oil distribution coefficient of the complex were studied, and compared with kaempferol-3-O-rutinoside.

制备山萘酚－3-O-芸香糖苷的磷脂复合物，测定其与山萘酚－3-O-芸香糖苷的溶解度，并对两者的水油分配系数进行分析。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。