1.The energies for the electronic states X1Σ+ and C′1Δ of BH molecular are scanned using SAC/SAC-CI(Symmetry Adapted Cluster/Symmetry Adapted Cluster-Configuration Interaction) with the basis sets 6-311G**. Then the scanned results are fitted to MurrellSorbie function. In the last,the spectroscopy constants and force constants are also calculated.
应用SAC/SAC-CI(Symmetry Adapted Cluster/Symmetry Adapted Cluster-Configuration Interaction)方法,利用6-311G**基组对BH分子的X1Σ+和C′1Δ电子态分别进行了单点扫描计算,并在此基础上利用最小二乘法数值拟合出了Murrell-Sorbie函数形式的解析势能函数,最后还推导出了BH分子的光谱常数和力常数.
2.The high performance liquid chromatographic method is employed for determining acetic acid with symmetry 5μm C18（4.6×150mm）column and mobile phase of 0.0020 mol/L H2SO4 at a flow rate of 1.0 ml/min . Detection is made by a UV detector at 210 nmwith external standard calibration.
本文建立了乙酸的高效液相色谱测定方法。 色谱条件为：色谱柱为Symmetry 5μm C18柱，柱温为室温，流动相为0.0020 mol/L的硫酸溶液，流速为1.0 mL/min，检测器为紫外检测器。
3.On the 10 th,20 th,30 th days,active ingredient(stilbene glucosidal) was respectively detected by an HPLC with fixed phase of Symmetry-C18(250 mm×3.9 mm,5 μm)and mobile phase composed of water-acetonitrile-(83∶17).
并在10,20和30 d,以Symmetry-C18(250 mm×3.9 mm,5μm)为固定相,乙腈-水(17∶83)为流动相,检测波长为320 nm,流量1 ml/min,应用HPLC测定其有效成分(二苯乙烯苷)。
4.Method: The separation was performed in a SYMMETRY C 18 column with a mobile phase of methanol-1%HAC solution (gradient elution), the The detection wavelength being 250 nm.
方法 :选用SYMMETRY C18色谱柱 (3.9mm× 15 0mm ,5 μm) ,甲醇 1%醋酸水溶液为流动相梯度洗脱 ,紫外检测波长为 2 5 0nm ,HPLC法。
5.Stability of Periodic Solutions Generated by Hopf Points Emanating from a Z_2-symmetry-breaking Takens-Bogdanov Point
Stability of Periodic Solutions Generated by Hopf Points Emanating from a Z＿2－symmetry－breaking Takens－Bogdanov Point
6.This article discuss another algorithm which has been improved---SMM(Symmetry of Modulo Multiplacation) algorithm.
本文讨论了对它的一种改进算法——SMM(Symmetry of Modulo Multiplacation)算法。
7.Mei symmetry,Noether symmetry and Lie symmetry of an Emden system
Emden方程的Mei对称性、Lie对称性和Noether对称性
8.By the help of geometric significance of plane or space curve and space surface, and by use of the symmetry of curve and surface to coordinate axis and coordinate surface, how to use the symmetry to calculate the surface integral and curve integral is discussed for the odd (even) functions that are defined on the curve or surface with symmetry.
摘要借助于（平面）空间曲线及空间曲面的直观几何意义，利用曲线、曲面关于坐标轴及坐标面的对称性，探讨了对于定义在具有对称性的曲线、曲面上的奇（偶）函数，如何利用对称性计算曲线积分及曲面积分。
9.Mei symmetry, Noether symmetry and Lie symmetry of Hamiltonian system
Hamilton系统的Mei对称性、Noether对称性和Lie对称性
10.According to the conclusion drawn from the model, we make an analysis on the evolution process of the proprietorship & residual controlling right of private enterprises:centralized symmetry------separation------decentralized symmetry, from which wedraw a conclusion that the process is an improving course. As one of the realization of decentralized symmetry, ESOP can theoretically improve the internal governance mechanism in private enterprises.
根据模型推导，结合私营企业所有权与控制权的演进过程：“集中对称—→分离—→分散对称”进行分析，得出私营企业两权演进是一逐步优化过程的结论，而员工持股作为两权分散对称的实现形式，从理论上讲，其实施可使私营企业内部治理机制达到优化。
