正交投影用于多波长色谱重叠峰分析

 将正交投影分辨 (OPR)技术用于多波长色谱重叠峰分辨 ,当色谱峰中最大重叠度小于或等于波长数时 ,用这一方法能从多波长色谱重叠峰中获得完全真解。基于双波长色谱分析 ,提出了一种新的色谱重叠峰中背景校正、组分数和纯组分信号区确定以及各组分重叠情况的分析方法 ,即双波长特征信息分析 (DWCI)。该法被成功的用于三组分双峰和双组分单峰重叠色谱的分析。     

Study on Separation Method of Overlapped Peaks in Differential Thermal Analysis with Computer Simulation

With the computer simulations, it has been found that in Differential Thermal Analysis (DTA) the overlapped peaks do not satisfy the linear overlapping principle, and the relationship between the overlapped peaks is rather complex that is a function of sample thermal conductivity, specific heat, quantity and latent heats, etc. If the first point where the two peaks begin to overlap is at the posterior half of the first peak curve and the two overlapped peaks can be identified by two different peaks, from the curve of overlapped peaks we can know that the temperature corresponding to the first point deviating from the sample's first phase change curve is the sample's second phase change temperature. This revised version was published online in August 2006 with corrections to the Cover Date.     

基于吸收能力和知识透明性的知识联盟动态模型研究

在对知识联盟中知识转移和知识创造过程分析的基础上，本文构造了一个基于吸收能力和知识透明性的知识联盟动态博弈模型，分析了吸收能力和知识透明程度对参与组织决策和利润的重要作用。最后给出了进一步研究的方向。     

Commensurability magneto-resistance peaks in a lattice of diffusive scatterers

Commensurability peaks in new kind of two-dimensional (2D) systems with artificial scatterers—2D electron gas in the array of diffusive and thermalizing scatterers (it was AuGeNi alloy dots)—was studied experimentally. It is shown that the position and the amplitude of these peaks are completely described by the model of pin-ball electron trajectories.     

用TPPI方法消除2D COSY和MQSY实验中与辐射阻尼有关的谐波峰

在二维相关(COSY)和多量子(MQSY)实验中,TPPI(Time-proportional-phase-in-crement)方法被用于消除与辐射阻尼相关的谐波峰.二维实验中,^c/2混合脉冲常常非线性地改变磁化强度的进动相位.这一非线性变化和辐射阻尼一起导致依赖于化学位移偏置的谐波.然而,如果混合脉冲的相位正比于演化时间t₁,谐波消失,但水峰保持不变.     

From antidot to dot superlattices: Magnetoresistance anomalies

For low Fermi energies and large antidot diameters an antidot superlattice changes into a dot superlattice. A negative magnetoresistance (NMR) for low magnetic fields coexisting with a commensurability peak is observed in this transition regime. We reproduce these features for both classical and quantum-mechanical calculations in a model, which traces the NMR back to saddle points with varying heights between the antidots. 1997 Elsevier Science B.V. All rights reserved.     

耦合KdV方程的双峰孤立子及其稳定性

利用扩展双曲函数法求解了耦合KdV方程,得到了6类精确解,其中一类为具有双峰状结构的单孤子解.在不同的极限情况下,该解分别退化为耦合KdV方程的扭结状或钟状孤波解.文中对双峰孤立波的稳定性进行了数值研究,结果表明:耦合KdV方程的双峰孤立波在长波小振幅扰动和小振幅钟型孤立波扰动下,均稳定. 关键词： 耦合KdV方程 双峰孤立子 稳定性     

对夫兰克-赫兹实验屏流曲线的讨论

夫兰克-赫兹（FH）实验是大学物理实验的重要实验,许多研究性课题从中不断产生.对实验曲线产生的机理与分析常常是实验教学中的难题.本文针对学生在FH实验中,对屏流IP曲线产生机理提出的问题,从汞原子的浓度和电子能量的变化系统研究了IP曲线产生机理,对这些问题给予了解释.