quadratic system,tetragonal system

A preliminary discussion of correction method in the calculation of atmospheric vertical velocity;

大气垂直速度计算中校正方法的探讨

Compensation and t-test are recommended as correction methods to correct for absorbance changes caused by the ageing of graphite tubes in the GFAAS determination.

介绍了两种校正方法——分段补差法及t检验法,以校正石墨炉原子吸收测定中老化石墨管的吸光度。

A PVE correction method was set up in this study.

结果:①一维校正法:校正方法的三步骤及数学公式。

In this paper, we use plane wave algorithm to study the band gap structure of 2D phononic crystal with square lattices.

采用平面波算法研究了二维正方点阵声子晶体的禁带结构。

The plane wave expansion method is introduced to calculate the band gap for two-dimensional solid phononic crystals with square lattices.

介绍了用平面波展开法计算二维正方点阵的固态声子晶体带隙的方法,研究不同截面形状的散射物对晶体带隙的影响。

Band gap structure of 2D phononic crystals with square lattices was studied by plane wave expansion method.

选取了5种不同材料组分和2组不同截面形状散射体的声子晶体作为研究对象,利用平面波展开法研究了二维固相双组分正方点阵声子晶体中z向剪切波的频率带结构,探讨了材料特性和截面形状对禁带的影响。

Characteristic of 2D square lattice photonic crystal in THz range;

太赫兹波在二维正方晶格光子晶体中的传播特性

The magnetization behavior of pure spin(1/2) diluted Ising model with square lattice in the outer magnetic field was investigated.

对处于外磁场中,自旋为1/2的具有二维正方晶格结构的稀磁Ising铁磁体模型,采用相关有效场理论,推导出了不同浓度下系统的磁矩、磁化率的理论公式·对磁化过程中系统主要物理量随温度、浓度等因素变化的情况进行了探讨·对给定的浓度和温度,磁矩随外场强度增大而变大;而对给定的浓度和磁场,磁矩随温度升高而减小·得到了基态时系统的序参量随浓度的变化曲线及该结构在不同浓度下的相图

Transmission component of terahertz wave in two-dimensional square lattice photonic crystal are studied with the plane-wave expansion method.

应用平面波展开法研究太赫兹波段正方晶格二维光子晶体的传输特性,数值模拟得到了太赫兹波段圆柱组成正方晶格二维光子晶体的带隙变化和能态密度的分布规律,根据计算结果设计了(0。

The critical temperature of the paramagnetic-ferromagnetic phase transition on the Ising model of the square lattice is studied by means of the Monte Carlo method.

利用蒙特卡罗方法研究正方格子上的伊辛模型的相变问题。

The evolution dynamics of 2_D square lattice probability cellular automata is mapped onto a special 3_D Ising Spin Body_Central _Cubic Lattice model.

用二维正方格子概率性细胞自动机的演化动力学描述一类特殊的体心立方晶体Ｉｓｉｎｇ模型，通过重整化群处理，得到该模型的相变点发生在曲线ｅｘｐ（－８Ｊ）＝ｃｏｓｈ（４Ｄ）上，数值结果为Ｄｃ＝０。

Objective To discuss the correcting method for QT interval and the influence of heart rate,QRS duration and paper speed on QT dispersion (QT d).

目的　探讨QT间期校正方法和心率、QRS时间、描记纸速对QT离散度 (QTd)的影响。