变晶

The lower energy is because that the chemical bond between O〓 and M〓 has not formed completely, which cause by the higher covalency of Eu〓-O〓 bond in amorphous state. And the larger half width is caused by the disorder of sites.

这是由于在非晶态状态下金属氧键尚未完全形成，从而导致Eu〓-O〓的共价性较高，因此电荷迁移带处于较低的能量位置；而格位的无序性导致其光谱变宽。

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。

Microscopical identification and TLC discrimination: After the expanded process, the structure of ginseng changed greatly, starch grain gelated, clustered crystal, trachea, were destroyed, the ginsengs hardy texture become loose; The ginseng and the expanded ginseng have the same chromatography stains,color and Rf values.

显微、TLC鉴定：人参膨化后组织结构发生显著变化，淀粉粒糊化，簇晶、导管、木栓细胞破碎，质地坚实的结构变得蓬松；人参膨化前后TLC的斑点颜色、数目、Rf值均相同。

Pressure induced amorphous transition of LiB 3O 5 has been investigated by using in situ high pressure X ray powder diffraction and energy dispersive X ray diffraction with synchrotron radiation at the pressure up to 45 1GPa.

采用X射线粉末衍射和同步辐射能散X射线衍射技术，对LiB3O5晶体进行了压致非晶化相变的研究，压力达45.1GPa。

Products involving rough, drawing, extubation reduced strokes, straight rod, special-shaped, natural diamond, polycrystalline mode, as well as bicycles, sewing machines dedicated mold standard parts, odd-shaped molds for various species, is strong in technology have advanced equipment to improve its service life detection is 30 times more than high-speed steel, non-disposable, can be used many times to repair, rehabilitate unchanged after life.

产品涉及毛坯、拉丝、拔管缩杆、直杆、异形、天然钻石、聚晶模以及自行车、缝纫机标准件的专用模具、奇形模等多样品种，力量雄厚工艺设备先进，检测完善它的使用寿命是高速钢的30多倍，非一次性，可多次修复使用，修复后寿命不变。

Products involving rough, drawing, extubation reduced strokes, straight rod, shaped, natural diamond, polycrystalline modulus as well as bicycles, sewing machines dedicated mold standard parts, odd-shaped molds for diverse species, is strong in technology have advanced equipment to improve its service life Detected are 30 times more than high-speed steel, non-disposable, can be used many times to repair, after repair the same life expectancy.

产品涉及毛坯、拉丝、拔管缩杆、直杆、异形、天然钻石、聚晶模以及自行车、缝纫机标准件的专用模具、奇形模等多样品种，力量雄厚工艺设备先进，检测完善它的使用寿命是高速钢的30多倍，非一次性，可多次修复使用，修复后寿命不变。

S where 3-EtO-SalAPA is the monoanionic Schiff base derived from 3-ethoxysalicylaldehyde and N-(3-aminopropylaziridine and S is C6H5F, C6H5Cl, C6H5Br, C6H5I or o-C6H4Cl2. Their gradual nature of spin-state interconversion is evidenced by the variable-temp. magnetic susceptibility and EPR data. Only a single quadrupole-split doublet is seen in the Moessbauer spectra for all solvates in the temperature range of

本文对五种组成为[Fe(3-EtO-SalAPA)2]ClO4.S的Fe自旋变异晶态配合物进行了磁学和谱学表征，所有溶剂合物的变温磁化率和EPR数据证示它们的自旋态转变性质均属渐变型，在110-300K范围内的Mossbauer谱都只显示单一的四极分裂双峰。

The results indicated that the main composition of the sample is α-AsS, with monoclinic crystal system, and there are some trace elements of Ca, K, Mg, Fe, Al, Pb. The appearance of the sample is block and pillar. when heated to about 273.2℃,α-AsS is translated to β-AsS, the melting point is about 304.4℃, and at about 355.5℃, the sample starts losing weight and decomposing.

结果表明：该雄黄标本主要物相为α雄黄，单斜晶系，含有少量α石英(α-SiO2)和雌黄(As2S3)，及微量Ca、K、Mg、Fe、Al、Pb等元素，表面自然结构为柱状或块状，273.2℃时发生AsS由α型转变为β型的相变，304.4℃时为AsS的熔点，355.5℃时失重分解。

On the contrary, it began to emit steam and the color of the exterior started to grow darker.

幸而那赤红晶柱未再继续升高，反而冒出了蒸气，外侧色泽变暗，残渣碎块纷纷剥离，漂浮在熔浆表面。

Based on the analysis of current oscillation region of stable electric fielddomains in I-V curve,it is shown that when the applied bias voltage is changedwithin positive slope regions of I-V curve,the domain boundary between the high-and low-electric field domains does not moved,and the size of electic fielddomains regions is also not altered,while the electric filed strengths are adjusted tokeep the current conservation.

通过对稳态电场畴情况下I-V曲线中电流振荡区域的分析，证明当外加偏压在正微分电导区变动时，超晶格的高低电场畴之间的畴边界不发生移动，畴的大小不变，只是相应的电场强度做些调整以使电流守恒成立。

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。