NONEQUIVALENT SU(2) GAUGE POTENTIALS UNDER EQUAL FIELD STRENTHS AND SOURCES

This paper analyses some common physical characteristics of the gauge field strengths and sources with unequivalent potentials and expresses it in geometrical terms. The eigen-directions of these fields and sources form twistfree curve congrence, which has orthogonal hypersurfaces. The field is Abelianlizable (frequently, even trival) on each hypersurface, i.e. there exists Higgs field, which is invariant under translation along each hypersurface. The gauge field and sources are not altered during the variation of potentials, generated by the gauge rotation around Higgs fields with equal angles on each individual hypersurface but with unequal angles on different hypersurfaces.     

Bethe Ansatz for the Spin-1 XXX Chain with Two Impurities

By using algebraic Bethe ansatz method, we give the Hamiltonian of the spin-1 XXX chain associated with slz with two boundary impurities.     

Solution for One-Dimensional Quantum Oscillator with Time-Dependent Frequency and Mass

Based on the generalized linear quantum transformation theory, we present a normal ordering evolution operator for onedimensional quant urn oscillator with time-dependent frequency and mass, then give the exact expression of the evolution matrix elements, wave function and expectation value of arbitrary observable.     

Gauss Decomposition of Dynamical Elliptic Algebra Aq,p,π(gln)

We propose a dynamical elliptic algebra which is based on the relations RLL = LLR^*, where R and R^* are the dynamical R-matrices of A_n-1⁽¹⁾-type face model with the elliptic module shifted by the center of algebra. nom the high-rank Gauss decomposition,h we obtain the Drinfeld currents of dynarnical elliptic algebra .     

动力学椭圆代数A_(q,p,)()的Drinfeld流

从推广的Yang -Baxter关系“RLL =LLR ”出发 ,利用高秩高斯分解 ,得到了动力学椭圆代数Aq,p ,^π(gln〈)及其对应的Drinfeld流 .其中R ,R 是A(1)n -1面模型对应的谱参数有一关于代数中心平移的动力学R矩阵     

红外光谱法动态跟踪聚羟基脂肪酸酯(PHAs)的热变性过程

本文利用ＦＴＩＲ光谱法研究了常温下和升温、降温过程中ＰＨＢ,Ｐ（ＨＯ－ｃｏ－ＨＤ）及不同组分的Ｐ（ＨＢ－ｃｏ－ＨＶ）和Ｐ（ＨＢ－ｃｏ－ＨＨ）共聚物的变化。结果表明,ＰＨＢ、Ｐ（ＨＢ－ｃｏ－ＨＶ）和Ｐ（ＨＢ－ｃｏ－ＨＨ）在变温过程中红外光谱图发生了明显变化,此过程是物理变化,且过程可逆。     

整形种子脉冲克服放大过程中增益窄化效应的研究

对飞秒脉冲放大中通过整形种子脉冲光谱补偿增益窄化效应的过程进行了数值模拟;对比研究了普通种子脉冲放大过程和整形种子脉冲放大过程中的光谱增益特性;定义了带宽窄化率;讨论了初始啁啾量对注入种子脉冲及增益窄化效应的影响.计算结果表明：借助整形种子光谱可理想地补偿啁啾脉冲放大中的光谱窄化效应. 关键词：     

含时调制的Jaynes-Cummings模型的Pancharatnam相位

基于含时调制的Jaynes-Cummings模型的SU(2)群结构,求得它的Pancharatnam相位,并分析 了该模型从绝热开启直到关闭原子与场的相互作用的整个过程的相位变化.讨论了该模型在 半经典近似条件下的情况. 关键词： 含时调制的Jaynes-Cummings模型 Pancharatnam相位 SU(2)群     

陡倾滑面滑坡锯齿形抗滑桩力学性能研究

陡倾滑面滑坡推力竖向分力显著,基于滑坡推力水平假定与普通抗滑桩相互作用不充分这一问题,建立锯齿形抗滑桩结构。依据梯形分布滑坡推力的假设,推导了受荷段内力计算公式,采用Winkler弹性地基理论推导了锚固段内力计算公式,并开展锯齿形抗滑桩的力学性能研究。分析表明,(1)随着滑面倾角的增加,锯齿形抗滑桩的受荷段、锚固段的弯矩、剪力以及侧应力均减小,内力减小幅度随之增大;(2)滑面倾角在20°～40°时,随着滑面倾角的增加,锚固段的理论最小长度在逐渐增加,40°时锚固段的长度为4.2 m达到最大值,且该长度仅占整个桩长35%,远小于按现行规范取得的锚固段长度最大值(1/2总桩长),桩侧摩阻力就可以完全满足竖向力学平衡;(3)将锯齿形抗滑桩与普通抗滑桩内力对比,受荷段和锚固段的弯矩减小34%、剪力减小36%及桩侧应力减小幅度大于30%,力学性能良好。     

双通道离子色谱法同步检测DOPO中的无机离子

以氯仿溶解9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物(DOPO),离心取清液,自动进样器-双通道离子色谱法同步检测DOPO中的无机阴阳离子,采用自动进样器与双通道同步进行,大大缩短了分析时间,离子保留时间的相对标准偏差RSD(n=6)在0.07%～0.18%,峰面积的RSD(n=6)在0.43%～0.88%,重现性好。3种离子的平均回收率在94.87%～98.30%,结果令人满意。