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A series of oligoaniline-modified mono- and bis-nuclear iron complexes have been synthesized successfully, and their spectroscopic and electrochemical properties have been studied.

合成了一系列齐聚苯胺修饰的三联吡啶铁配合物,研究了齐聚苯胺链长、不同取代基等对配合物光谱性质和氧化还原性质的影响。

In reversed micelle the dye showed characteristics of two monomolecular states, the balance between which could be affected by all factors investigated above.

主要研究了反胶束中菁染料的光谱性质,确定了反胶束中菁染料的存在状态,以及反胶束ω值,水团微组份及温度等对菁染料吸收及荧光光谱性质的影响。

Based on two newly - defined monotone restrictions for heuristic function h, the characteristic of monotone restrictions for algorithm BHAO is also investigated, and the comparison between two BHAO algorithms is also discussed.

本文还提出了两类新的启发式函数的单调限制概念,并据此研究了算法BHAO的单调限制性质,研究了两个BHAO算法间的比较性质。关键词广义

ABSTRACT The plasticity of metal completely depends on the property and moving of dislocation cluster which consists of different length of dislocation link and each of them has different effect during deformation.

金属塑性性质是和其内部位错群体的性质及运动变化密切相关的。这种位错群体是各种长度位错链段集合,在变形过程中各自起不同的作用。

Natality, mortality and population The nature of competition (I1) growth (H2) The nature of predation (J1) Density and density

出生率,死亡率和种群增长(H2)竞争的性质(I1)密度和密度制约(H3)捕食的性质(J1)种群动态——波动,周期和混沌H4

Logic The positive or negative character of a proposition.

命题的性质:命题的肯定或否定的性质 adj。

We consider an auxiliary function related to the Cauchy transform of the measure μ,, and get that it preserves sign on negative real axis. The property play a role in the study of the transform.

我们考虑了与测度μ的Cauchy变换相关的一个辅助函数,得到了它在负实轴上具有保号性,此性质对研究该变换的一些有趣的分形性质起作用。

Chapter 3 emphasizes on the case that the considered systems contain not only impulse but also time delay. We mainly investigate impulsive parabolic systems with time delay and neutral impulsive parabolic systems. Section 3.1 discusses the oscillation of impulsive parabolic systems with time delay under Robin boundary condition and obtains some useful criteria via first order impulsive differential inequalities with time delay. Section 3.2 studies the oscillation of neutral impulsive parabolic systems under Neumann boundary condition and Robin boundary condition, respectively, and obtains some sufficient conditions for oscillation and strong oscillation via first order neutral impulsive differential inequalities.

第三章针对于"脉冲"与"时滞"共存的复杂情形,仍采用反证法讨论了含时滞的脉冲偏微分系统的振动理论,具体研究了脉冲时滞抛物系统和中立型脉冲时滞抛物系统。3.1节考虑了脉冲时滞抛物系统的振动理论,借助于一阶脉冲时滞微分不等式的解的性质,得到了满足Robin边界条件的脉冲时滞抛物系统的若干振动准则;3.2节考虑了中立型脉冲时滞抛物系统的振动理论,借助于一阶中立型脉冲时滞微分不等式的解的性质,分别给出了满足Neumann边界条件和Robin边界条件的中立型脉冲时滞抛物系统的若干振动和强振动准则。

The ground states properties of Ne-isotopes were calculated with Relativistic mean field theory. Compared with the experimental datas, its discovered that the nucleus properties chang regularly with the changes of neutron number when the proton number is even. The results proved indirectly that even nucleus has no direct influenced on another kind of nucleus. Besides, the applicability of Relativistic mean field theory in this region was tested.

用相对论平均场理论计算了Ne同位素的基态性质,并和实验比较,发现当质子是偶数时,核的性质有规律地随中子数的变化而变化,由此间接证明了偶数核子对另一类核子无直接影响;同时,也检验了相对论平均场理论在该区域的适用性。

In the present paper,we investigate solvable radicals and Hopkins nilpotent radicals for Lie triple systems and prove that both radicals are invariant under actions of deriva- tions.

本文讨论李三系的可解根基和Hopking幂零的某些性质及导子作用下的不变性,讨论了李三系次理想的某些性质,证明了李三系为幂零的当且仅当每个子系都是次理想。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力