强激光大气传输中拉曼散射的数值计算

用经典理论推导了强激光大气传输中由于氮的转动受激Ｒａｎｍａｎ散射所造成的对传输功率的限制方程，并计算了光强的阈值，得到了阈光强与激光波长和脉宽的关系；此外，还研究了二维效应和激光脉冲系列通过大气时声子激发的累加效应。     

强迫Brusselator系统延迟时间的确定

本文用等间距划分空间格子的方法，计算了互信息函数，对强迫布鲁塞尔振子系统系统地广泛地确定了延迟时间，并给出了正确重构的运动状态．     

Robust stabilization of uncertain linear dynamical systems with time-varying delay

In this paper, the problem of the robust stabilization for a class of uncertain linear dynamical systems with time-varying delay is considered. By making use of an algebraic Riccati equation, we derive some sufficient conditions for robust stability of time-varying delay dynamical systems with unstructured or structured uncertainties. In our approach, the only restriction on the delay functionh(t) is the knowledge of its upper boundh ^–. Some analytical methods are employed to investigate these stability conditions. Since these conditions are independent of the delay, our results are also applicable to systems with perturbed time delay. Finally, a numerical example is given to illustrate the use of the sufficient conditions developed in this paper.     

A Regularly Preemptive Model and its Approximations

A regularly preemptive model D,MAP/D ₁,D ₂/1 is studied. Priority customers have constant inter-arrival times and constant service times. On the other hand, ordinary customers' arrivals follow a Markovian Arrival Process (MAP) with constant service times. Although this model can be formulated by using the piecewise Markov process, there remain some difficult problems on numerical calculations. In order to solve these problems, a novel approximation model MAP/MR/1 with Markov renewal services is proposed. These two queueing processes become different due to the existence of idle periods. Thus, a MAP/MR/1 queue with a general boundary condition is introduced. It is a model with the exceptional first service in each busy period. In particular, two special models are studied: one is a warm-up queue and the other is a cool-down queue. It can be proved that the waiting time of ordinary customers for the regular preemption model is stochastically smaller than the waiting time of the former model. On the other hand, it is stochastically larger than the waiting time of the latter model.     

On the evaluation of strategies for branching bandit processes

Glazebrook [1] has given an account of improved procedures for strategy evaluation for resource allocation in a stochastic environment. These methods are extended in the paper in such a way that they can be applied to problems which, for example, have precedence constraints and/or an arrivals process of new jobs. Theoretical results, backed up by numerical studies, show that quasi-myopic heuristics often perform well.     

宽波段多步激发K_2-系统产生的钾原子高位态辐射

本文首次报道以690.0～715.0nm宽波段范围内任何波长的脉冲染料激光激发K_2—K系统,由高位钾分子与钾原子碰撞以及分子-原子的混合激发等过程而产生钾原子404.4,404.7和470.05～590.0nm波段内高位态辐射的实验结果,并对激发机制进行了探讨.     

Coherence Time Measurement of Picosecond Pulses Using Reverse Saturable Absorption in Lead Phthalocyanine

ＣｏｈｅｒｅｎｃｅＴｉｍｅＭｅａｓｕｒｅｍｅｎｔｏｆＰｉｃｏｓｅｃｏｎｄＰｕｌｓｅｓＵｓｉｎｇＲｅｖｅｒｓｅＳａｔｕｒａｂｌｅＡｂｓｏｒｐｔｉｏｎｉｎＬｅａｄＰｈｔｈａｌｏｃｙａｎｉｎｅＬＩＦｅｎｇＳＯＮＧＹｉｎｇｌｉｎＹＡＮＧＫｕｎＬＵＩＳｈｕｔｉ...     

一个关于图谱的受控定理的推广

本文将一个关于两个不交国的单点粘合的图的LPlaCe谱的受控定理推广到了两个国的多点粘合何形；同时证明了相同的结果对目的Q一回也成立。     

浅调制下双二波混频：I.内部空间电场

互不相干的两对相干光束同进作用于一块光折变晶体，在小调制的情况下（即晶体对光强的反应是线性的）依然会了明显的空间频率为两个基频的组合的内部宽间电场分量，本文从基本的Ｋｕｋｈｔａｒｅｖ方程组出发，把电场和电子数密度直接分解为组合频率的傅里叶分量，以解析解的形式给出了空间频率分别为Ｋ１－Ｋ２，Ｋ１＋Ｋ２，２Ｋ１和２Ｋ２的电场分量，数值解表明在一定条件下这些高频和组合分量很大且不可忽视。     

时间积分声光相关器相关峰的提取

对时间积分声光相关器的原理进行了理论分析，通过实验得到了叠加在包络上的相关峰波形，为了对其进行修正，引入了后处理电路，最后得到了比较理想的相关峰波形。