三晶

For a system in its glassy or supercooled liquid state, there are three dominant characters of its primary relaxation distinguishing it from the normal liquid and the ordered crystal.

一个处在过冷液态或者玻璃态的系统，以其主弛豫的三个特征区别于它的正常液态和完全有序的晶态。

Its stability was investigated after calcination and after separate treatments in boiling acid, base and different ammonium salt solutions for 6h.

采用三段晶化法合成了MCM-22分子筛，研究了MCM-22分子筛的热稳定性，分别用盐酸、NaOH和铵盐溶液在沸腾条件下处理MCM-22分子筛6h，考察MCM-22分子筛对酸、碱、铵盐的稳定性。

Cellulose benzoate,the degree of substitution of which was calculated from the content of C determined by element analysis,was prepared from microcrystalline celluloseand benzoyl chloride under heterogeneous condition and characterized by FT-IR and~1H-NMR.

研究了微晶纤维素和苯甲酰氯在多相条件下合成制备纤维素苯甲酸酯的反应，通过元素分析所得碳的质量百分含量计算了产物的取代度，并系统研究了吡啶与N，N-二甲基乙酰胺或与三乙胺混合反应溶剂、苯甲酰氯与纤维素羟基的摩尔比r、反应温度和反应时间对D S的影响，用FT-IR和1H-NM R对产物进行了表征。

Annual output of ceramic fiber 1050 series, 1260 series ceramic fiber products, ceramic fiber products 1400, more than 1600 grain products 8000 tons annual production capacity, with cotton, blankets, carpets, rope, board, paper, cloth, modules, castable , refractory bricks, such as fiber products of different forms more than thirty.

年产1050陶纤系列产品、1260陶纤系列产品、1400陶纤系列产品、1600多晶系列产品年生产能力8000吨，具有棉、毯、毡、绳、板、纸、布、模块、浇注料、耐火纤维砖等不同形态的产品三十余种。

In this paper we have calculated the surface energy of various crystalline planes as film surface for ten face-centered cubic metals, ten body-centered cubic metals and three diamond-structure crystals with Modified Embedded Atom Method.

本文应用改进嵌入原子法分别计算了十种面心立方金属、十种体心立方金属以及三种金刚石结构晶体的不同指数晶面作为表面时的表面能。

This paper makes a three-dimensional model for QCM and analyzes directly the coupled phenomenon of the structural and electric fields of QCM with finite element analysis software ANSYS10.0. Through analyzing the convergence of the resonant frequency of QCM, the correctness of the finite element analysis is proved. The influence of different sizes of electrode on vibration of QCM and an optimal size of electrode is discovered, namely thickness of 100 nm and radius of 3 mm. The design of mesa on crystal plate is provided to solve the problem that the energy trapping is not good enough. This design proves valid based on finite element calculation and an optimal size of the mesa is given, namely height of 9.8 μm.

基于有限元分析软件ANSYS10.0对石英晶体微天平进行三维建模，验证了建模的正确性，并对不同电极结构尺寸进行仿真计算，对出现的耦合情况进行了分析，通过实验结果对比，提出较佳电极尺寸结构为厚度100 nm，半径3 mm；为解决金电极能陷效应不够理想的问题，提出在晶片上下表面筑平台的设计，有限元计算结果表明此设计能改善电极区的能陷效应，并且较佳平台高度为9.8μm。

X-ray analyses indicate that lattice parameters decrease due to Cu-doping; while XPS results show that Cu-doping leads to positive chemical shifts of the Cu 2P1/2 and La 3d5/2 and 3d3/2 levels, implying that Cu-O and La-O bondings are strengthened and their bond lengths are shortened; while magnetization measurements show that after 8 hours' Arannealing, the Neel temperature of Cu-rich sample is about 31K higher than that of the sample without Cu doping, indicating that the three-dimensional antiferromagnetic correlation is enhanced.

结合各种分析手段认为，掺杂的铜原子部分替代了 La 位，也有填补 CuO2面的 Cu 空位和在晶界形成微量第二相的可能占位情况，使得铜的掺杂取得了增强二维特别是三维反铁磁交换作用的效果，促进了La2CuO4+δ系统的相分离。

By employing the Jordan-Wigner transformation and a modified mean field method, we are able to determine its ground-state quantum phase diagram approximately. The chapter IV is the main part of this Thesis. It contains the main innovations in our work. We propose and study in detail a S=1 Ising chain with the interplay of single-ion anisotropy and dimerization. The main results and innovations are the following: We show that the total number of the zero-component of spins at each site is a conserved quantity. This quantity, which may intuitively called as hole's quantum number, is hidden in the system. We show further that the hole's number in the ground-state is zero; By using the Jordan-Wigner transformation, we map this model onto a series of subsystems described by the spin 1/2 dimerized transverse Ising model. We solve the subsystems exactly, by presenting the exact wave functions and spectra;We show that this system exhibits a series of quantum phase transitions by varying the dimerization strength. We determine the quantum critical points exactly. We also show that the criticality is the same as that of the uniform S = 1/2 transverse Ising chain.

第四章是本文的重点及主要创新内容，我们具体研究了自旋为1的在横向单离子晶格场中的一维二聚化Ising链，我们得到的主要结果和创新之处是：(1)证明了这一模型具有一种隐藏的对称性，即自旋第三分量为零的格点数目是一个守恒量，并证明基态出现在空穴数目为零的子空间中；(2)利用Jordan-Wigner 变换将此模型变换到一系列自旋为1/2的横磁场中的二聚化Ising 模型，并给出了相应严格的波函数及能谱；(3)我们发现系统的基态随着二聚化强度的变化将呈现出一系列量子相变，我们得到了量子临界点的精确位置，并证明其临界性质与自旋为1/2的横磁场中的均匀Ising 链中的临界行为属于同一普适类。

Thirdly, flower-shaped BaCrO_4 crystals have been synthesized via a facile polymer-mediated crystallization process at ambient temperature.

第三，通过聚合物调制与室温晶化工艺制备了花状铬酸钡晶体，并提出了一个可能的形成机理。

"Our group already waited nearly 3 years ","The world on the palm " president grove contain expresses yesterday," brilliant clever On - Line " with playing a way much, part is acted rich and famed, the interest sex that its fight side-by-side with fostering pet and its, also let a large number of users quited PC sport and hand of fight in some places one by one swims.

&我们的团队已等了近三年&，&掌上世界&总裁林子涵昨日表示，《晶灵on－line》以玩法多、角色扮演丰富而闻名，其以培养宠物和自己并肩作战的趣味性，也让大量用户放弃了PC游戏而转战手游。

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。