软X光能谱仪探测元件晌应曲线标定

报道了软X光能诺仪探别元件的能量响应曲线标定工作．实验利用北京同步辐射装置-3W1B束经及反射率计靶室，在束流40—80mA、贮存环电子能量2.2GeV专用光运行模式下，在150—1500eV能区的四个能段，做了铝阴极X射线二权管、滤光片及擦入射平面反射镜能量响应标定实验，通过实验数据比对及分析，最终给出X射线二极管在不同能量段最大可能的测量误差范围。     

THE UNIQUENESS OF LIMIT CYCLE AND THE STRUCTURE OF CRITICAL POINT AT INFINITY FOR A CLASS OF CUBIC SYSTEM

A class of cubic system, which is an accompany system of a quadratic differential one, is studied. It is proved that the system has at most one limit cycle, and the critical point at infinity is a higher order one. The structure and algebraic character of the critical point at infinity are obtained.     

基于运动光栅光折变双光束耦合的刚性全息明孤子的动态演化

研究基于运动光栅双光束耦合的耗散光折变系统中的空间光孤子的动态演化问题.数值计算 表明，系统参数同这种孤子的稳定性密切相关.在某组系统参数下，孤子可以在晶体内稳定 传播足够远的距离.双光束耦合的相位与强度耦合系数之比越大，孤子的稳定性越好.讨论了 将这种系统应用于光学开关、中继及分路器件的可能性. 关键词： 空间光孤子 光折变非线性光学 耗散系统 全息光栅     

Generation of Multi-ion Graph States with Trapped Ions in Thermal Motion

We propose a scheme for generating multi-ion graph states using many trapped ions in thermal motion. Our generation scheme is insensitive to external state since the interaction between ions and laser fields does not involve the external degree of freedom. The scheme can be well realized within the current experimental technique.     

New Exact Solutions of the N-Coupled Nonlinear Schroedinger System

In this letter, abundant families of Jacobi elliptic function envelope solutions of the N-coupled nonlinear Schroedinger （NLS） system are obtained directly. When the modulus m → 1, those periodic solutions degenerate as the corresponding envelope soliton solutions, envelope shock wave solutions. Especially, for the 3-coupled NLS system, five types of Jacobi elliptic function envelope solutions are illustrated both analytically and graphically. Two types of those degenerate as envelope soliton solutions.     

GI／G／1系统队长的极限分布

关于GI／G／1排队系统队长的极限分布存在的一个充分条件被建立．     

基于遗传算法的项目经理评价

本文根据自然进化规则，把项目经理视为评价系统，项目经理所要满足的要求视为系统环境，用遗传算法的方法评价项目经理，力求提出一种比较客观科学的、且可以定量分析的项目经理的评价方法。     

在预报更新的环境下具有两种配送方式的供应链模型

本文研究在预报更新环境下具有快、慢两种配送方式和需求预报更新的库存系统，为了得到更多关于费用参数和预报改进对最优定货量以及最优的平均费用的影响，我们考虑两个周期的情形．以动态规划为工具我们得到了系统的最优策略．对于需求预报服从均匀分布情形，本文得到了最优定货量和最优的平均总费用的精确表达式．我们通过一些数值例子来说明库存费用、罚金、需求的预报改进和预报误差对最优定货量和最优的     

关于年龄相关的种群扩散系统的最优边界控制计算的惩罚移位法

研究了惩罚移位法应用于一类种群扩散系统最优边界控制的计算,构造了其逼近程序,并证明了这种方法的收敛性.     

Optimal Control Problem Governed by Semilinear Parabolic Equation and its Algorithm

In this paper, an optimal control problem governed by semilinear parabolic equation which involves the control variable acting on forcing term and coefficients appearing in the higher order derivative terms is formulated and analyzed. The strong variation method, due originally to Mayne et al to solve the optimal control problem of a lumped parameter system, is extended to solve an optimal control problem governed by semilinear parabolic equation, a necessary condition is obtained, the strong variation algorithm for this optimal control problem is presented, and the corresponding convergence result of the algorithm is verified.