晶格

The superlattice samples were characterized by various analytic techniques and showed good periodicity and abruptness of interface.

测试结果表明，获得的超晶格周期性和界面特性均良好。

Esides, Ce ions can accelerate the oxidation-reduction cycle of catalysts in the process of propane oxidation to acrolein.

i-Mo二元复合氧化物催化剂中添加适量的Ce和V组分可进一步提高催化剂晶格氧选择氧化丙烯生成丙烯醛的反应活性。

Because of the adulteration of phosphor in nuclei the grain size distribution and sinter of titanium white are controlled effectively.

由于晶格的早期掺磷，从而有效地控制了钛白在煅烧时的粒径分布和烧结。

The crystal-chemical properties and the genesis of the allanite have been disscussed, in addition, the radioative decay of Th and U and the oxidation cause rare-earth elements to be released from its lattice to d...

认为本区的褐帘石是部分变生的。变生的机理是因为其晶格中含放射性元素U，Th高，且这与褐帘石的选矿性能有重要关系。

The polarization field E(?=3.2×108 volts/cm, E1∩=3.3×108 volts/cm at a Cl- lattice point, and the polarization energy Up(?=-102K α-TiCl3 sandwich-type layer crystal have been calculated, based upon an ionic model.

本文根据离子晶体模型，计算了α-TiCl_3层状晶体内氯离子格点上的极化电场强度E_⊥=13.2×10~8伏/厘米，E_(11=3.3×10~8伏/厘米，以及晶体的极化能U_(p⊥=-102千卡/克分子，U_(p11)=-167千卡/克分子和晶格能(U=-1206千卡/克分子)。

The biaxial molecules interact via dispersion forces and the molecular centres of mass are located at the sites of a simple cubic lattice.

双轴分子通过色散力作用，使分子质心固定在简单立方晶格的格点上。

This stimulates that it becomes more and more interesting and important to study the issue of lattice dynamics with higher anharmonic and long-range interactions.

当计及最近邻格点间的相互作用理论基本成熟后，同时包含高次非谐相互作用和各种长程关联谐振的晶格动力学问题就显得日益重要了。

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。

In 1968, American break kralanh successfully developed the first micro-chip prism (Microprism, also known as lattice) reflective film.

1968年，美国人休格·罗兰成功研制出第一片微棱镜（Microprism，又称晶格）反光薄膜。

The influence on the accuracy due to different grid numbers in reciprocal lattice space is also examined.

本论文也探讨不同倒晶格空间格点数对频率能带准确度之影响。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。