格点

Composite hexagonal air hole lattice photonic crystal fiber dispersion of - Abstracts - China ...

复合六边形空气孔格点光子晶体光纤的色散特性分析--论文摘要--中国。。。

The animated script files of isopleth drawing are generated with the fourth kind of grids from MICAPS data, and the process of weather development is displayed on the platform Weather 3D.

利用MICAPS第4类格点数据，生成等值线动画脚本文件，借助Weather 3D平台表达天气演变过程。

The Hamiltonian operator of system of Heisenberg chain acts on the complete basis vectors produced with permutation group to form energy matrix.

计算结果：(1)位型[4，2]的第I类自旋交换在格点单、双占据及格点单、双占据共存三种情况时所得矩阵只在对称填充时相同，别况均不同。

After obtaining the raw data, a simple method is used in the paper to process forest fire related data from 1999 to 2000, in which the data at arbitrary site is calculated by inverse distance weighted interpolation.

我们尝试将1999年和2000年的火灾相关参数的原始数据利用简单的三点反距离加权插值方法分解到三级格点上，并对分解的结果进行了分析。

In chapter 2, leading-out the difficulties of lattice fermion action based on the Lattice QCD theory.

第二章：通过格点QCD理论的基础引出格点上费米子作用量的困难，即手征对称性破缺与费米子加倍。

By combining entropy encoding, a new scatheless and highly efficient compression scheme is designed to deal with meteorological grid data.

格点资料是目前气象数据存储、传输和应用的主要形式，爆炸性增长的资料给数据的存储、传输带来了巨大压力，设计适合格点资料特点的压缩方案越来越重要。

A new method for indexing large amounts of points inhigh-dimensional space is proposed.The basic principle is as follows:uniformly partition the data space by Lattice vector quantization,store the lattice points by Inverted File,organize the inverted file by Trie tree,and fast access the inverted file by Trie parallel search algorithm.

本文提出一种新的高维空间中点数据的索引方法，其基本原理是用格矢量量化均匀划分数据空间、用倒排文件存储格点、用Trie树实现倒排文件的组织和存储、用Trie并行搜索算法实现倒排文件的快速访问。

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。

The forming process of triangulated HP model is presented in this paper.

针对HP的正方格点模型存在能量计算缺陷，本文给出一种模型上的修正，引入了三角化的HP格点模型。

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。

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。