查询词典 transition element

The FTIR spectrum of DTC-TETA showed strong absorption peaks at 1 461-1 388 cm-1 and 1 174-996 cm-1 which were attributed to partly double bonds of C and C,respectively.The UV spectrum of DTC-TETA had two absorption peaks at 265 and 290 nm,assigned to π—π* transition of N…C…S radical and nonbonding electron n—π* transition of S…C…S radical to conjugated system,respectively.

在DTC-TETA的红外光谱图中，在1461-1388cm-1处和1174-996cm-1处分别出现含有部分双键性质的〖JGC〖ZJXS，YN键和键的特征吸收峰；在紫外光谱图中，分别在265和290 nm处出现两个最大吸收峰，分别对应于N…C…S基团的π—π*跃迁和S…C…S基团中硫原子上非键电子向共轭体系的n—π*跃迁；元素分析结果表明该化合物中碳、氢、氮、硫的摩尔比近似为

On the basical characteristics of two historical and great transition s;2. Several hypotheses on the corrosion transition phenomenon of zircaloy are presented.

关于 Zr－2和 Zr－4合金的转折机理有多种假说，其中相变假说认为：锆合金的氧化速度主要受氧化物／金属界面附近 t－ZrO2向 m－ZrO2转变的控制。

The analysis of decomposition mechanisms of the catalyst surface revealed that one of the mechanisms is that activated gas phase O2 captures the hydrogen of the organic pollutants to produce free radicals, which then initiate the catalytic reaction, and produce CO2 and H2O ultimately; and the other mechanism is that the activated organic compounds attack the crystal lattice oxygen, which reduces the valances of the transition metals, then the oxidant of the oxygen oxidizes the transition metals to high valances, which realize the self oxidation-reduction of the catalyst.

催化剂表面有机物降解的机理分析表明，一种反应机理为气相中的O2活化后直接夺取有机污染物的氢，产生自由基，并引发催化反应，最终生成CO2和H2O；另一种反应机理为活化后的有机物直接进攻催化剂的晶格氧，并且使得过渡金属由高价态变为低价态，反应气中的O2再将低价态的金属氧化为高价态，实现催化剂自身的氧化还原循环。

Must fully note this time high school as the teacher newborn to appear not the indication,promptly does an inspection to analyze the unsuitable reason,and has pointed in the investigation and study foundation takes the measure,the practice proved: promptly on own initiative finishes the guard,unblocks with transition-period and so on transformation works,effectively prevented the polarization phenomenon,can cause the student to eliminate unsuitably,the smooth transition as soon as possible,simultaneously for constructed the harmonious teachers and students relations extremely essential function.

作为教师要充分注意到这一时期高中新生出现的不适应症，及时巡查剖析不适应的原因，并在调查研究的基础上有针对性地采取措施，实践证明：及时主动地作好防范、疏导和转化等过渡期工作，有效防止两极分化现象，能使学生尽快消除不适应，顺利过渡，同时为构建和谐的师生关系起到了非常关键的作用。

Climatological series of seasonal transition date is then given by using this index. Based on energy budget analysis, the mechanism for seasonal transition and monsoon onset are also explored.

在分析温度场、加热场季节变化的基础上，从能量收支的角度探讨气候平均状态下季节转换和季风爆发的物理机制。

A series of transition metals, transition metal oxides and composite metal oxides were investigated as catalysts for phenol hydroxylation. Twelve new types of phenol hydroxylation catalysts with good activity and application prospect were reported.

考察了一系列过渡金属氧化物、复合金属氧化物及金属作为苯酚羟基化作用催化剂的反应性能，筛选出12种具有良好活性与应用前景，尚未见文献报道的苯酚羟基化新型催化剂。

In this paper, it is shown that the increment of the plasma confinement time without consideration of radiation losses is a good scale for evaluating the plasma confinement improvement during the L-H like transition induced by electrode bias in tokamaks, if the ratio of the radiation power to the total loss power in the transition changes evidently.

辐射下降表明进入等离子体的中性粒子通量减少。这是中性粒子再循环的减小而造成的。同时，边缘密度和边缘温度下降，中心温度上升，约束得到改善，能量约束时间增加。径向电场是控制托卡马克等离子体从L模过渡到H模的关键因素。如果径向电场足够强，极向ExB旋转产生很大的剪切，剪切能够抑制边缘湍流1j。

It analyses the Fuxin economic transition and its economic development, through the factor analysis and modelling.it stablishes the pattern of citye conomic transition and industria conversion direction, namely "industries conversion + industries extension" composite model.

同时，揭示了资源型城市经济转型的内涵与本质，分析了经济转型面临的主要矛盾和问题。

To be one of the biggest Transition countries, Russias Economic Transition have Great representation in the process of countries which changes their economic system from planned economy to the market economy.

作为最大的转轨国家之一，俄罗斯的经济转轨在由传统的中央计划经济向市场经济转轨的国家中具有很大的代表性。

In this thesis, a first principles study of the electronic properties and mechanical properties of transition metals, transition metal carbide s and nitrides is presented.

过渡金属碳化物和氮化物具有高硬度、高熔点、耐磨损和耐腐蚀的优良特性，被广泛应用于切削刀具和用作硬质涂层。

The small blue capacitor has very high chances to go fully shorted compare to electrolytic capacitor which is very rare.

小蓝电容器具有很高的机会去充分地缩短了比较电解电容器，这是非常罕见的。

In the Italian campaigns of 1513 and 1515, when the Swiss won the victories of Novara and Marignan, he acted as army chaplain.

在意大利的运动， 1513年和1515年，当瑞士赢得了胜利，诺瓦拉和marignan ，他担任军队的牧师。