查询词典 transition complex

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。

It is found by solving the self-consistency equa tion that, at zero chemical potential and finite temperature the chiral phase transition is of second order, while both at finite temperature and density and at zero temperature finite density this transition is of first order.

通过求解序参量所满足的自洽方程，其结果表明：在零化学势有限温度情况下，有二级手征相变发生；对于有限温度和密度以及零温有限密度两种情况，手征相变为一级，并且其转变温度或密度与费米子所处的初始相有关，即从破缺相到正常相的转变温度或密度不同于从正常相到破缺相的转变温度或密度。

This article analyzes the phase diagram of 4 He and λ phase transition of liquid 4 He. Discusses the sorts of the phase transition with vavious temperature and pressure. Indicates the fundamental cause about liquid 4 He named after quantum liquid.

分析了4He的相图和液体4He的λ相变，讨论了在不同的温度和压强下相变的类型，指出了液体4He被称为量子液体的基本原因，介绍了HeⅠ的基本特性，如粘滞系数、热导率，对声波的吸收系数，以及凝聚气体模型。

Through systematic study, it is found that the ion dose is another important parameter in Ion Beam Manipulation and it has significant influence on the strutrual phase transition. If the dose is precisely controlled, the structural phase transition could be traced under a quasi-continuous way. Consequently, many new phenomena have been discovered by Ion Beam Manipulation.

一、研究了离子束剂量在离子束操纵技术中的重要影响；研究表明离子束剂量可以精确地控制，使材料中的结构演变过程接近于连续地变化，因此可以对离子束诱导的结构相变进行准连续状态的跟踪，发现了许多新的现象。

The invention relates to a rare-earth metal oxide supported transition metal or transition metal alloy catalyst and the method of on the catalyst, using alcohol or alcohol water solution catalytic chemical deposition to prepare nano carbon fiber and 3D order nano carbon stacking structure.

本发明涉及一种稀土金属氧化物担载过渡金属或过渡金属合金催化剂及利用在该催化剂上，乙醇或乙醇水溶液催化化学沉积制备纳米碳纤维和三维有序纳米碳纤维堆积结构的方法。

Firstly, the steady state statistical properties of the logistic growth model with colored noise are analyzed when the unified colored noise approximation is applied. It is found that the noise correlation time and the coupling between noise terms can induce first-order-like phase transition and re-entrance phase transition phenomenon.

首先，用统一色噪声近似理论分析了含有色噪声的Logistic 增长模型的定态分布函数，发现噪声相关时间τ和噪声间的耦合λ均能诱导一级相变类比和重复相变现象。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。