非数值计算

The common equation of the evolution of spectrum caused by selfphase modulationis presented, which is the convolution of action spectrum and chirped spectrum caused by selfphase modulation when carrier frequency is single.

给出了由自相位调制引起的频谱演变的普遍表示，即单载频脉冲的SPM引起的啁啾频谱与光源的频谱的卷积，通过数值计算给出从相干脉冲到非相干脉冲的频谱演变规律。

The numerical calculation method of infrared radiant intensity of exhaust system of turbine engine without afterburning was studied.

研究了非加力涡轮发动机排气系统红外辐射强度的数值计算方法。

Both the fuzziness and the randomness of the basic variable and the state variable are considered in the present method.

结合工程实际，提出了非闭合隶属函数的截断可能性分布模型，并对模糊强度和模糊应力进行截断处理，给出了结构模糊随机失效概率随截断参数的分布，并给出了结构模糊随机失效概率分布的数值计算方法。

A numerical model for suspender ejection device with the powder gas of blank cartridge as driving energy is established.

建立采用抛放弹火药燃气作为工作能源的挂弹钩弹射机构的数值计算模型，对抛放弹燃烧，弹射活塞非对称工作，直至推离悬挂物的整个动态过程进行了模拟计算。

The orthogonal qs-coherent state is constructed and its nonclassical properties such as squeezing property, antibunching effect are studied.

构造了正交 qs相干态，并研究了它的压缩性质、反聚束效应等非经典性质。数值计算了形变参数 q和s对非经典性质的影

In order to simulate the mechanical behavior of nonhomogeneous materials numerically, the traditional finite element method is improved in this dissertation and the finite element method with nonhomogeneous elements is developed.

为了适用于非均匀材料的数值计算，本文将传统的有限元方法进行了改进，推导了非均匀单元有限元方法。

Temperature calculation models are established for the surface insulation of space targets both in the ideal case and in the nonideal case.

建立了在理想和非理想两种情况下空间目标表面隔热组件温度的计算模型，充分考虑了隔热组件传热的影响因素，并通过数值计算得到了隔热组件在太阳直射时各层温度的变化。

Base on the nonequilibrium solvation theory, the numerical calculation formulas for the conductor-like-screening-model have been established.

基于非平衡溶剂化理论，推导了用于非平衡溶剂化能数值计算的类导体屏蔽模型的相关公式。

Firstly, a formula is presented in this paper, for theultimate strength of T-shaped unstiffened CHS-RHS joint under out-plane bendingload. The yield line model based on flexural failure of the chord face, is assumed onthe basis of Von-Mises stress distribution on the chord face.

本论文在有限元数值计算基础上，根据主管表面的应力分布，假定了基于弦杆表面塑性破坏模式下的节点屈服线模型，推导了平面外弯矩作用下非加劲节点的极限承载力公式，与有限元计算结果非常接近。

The main works of this paper are as follows.First, according to the three-step method, 1-D unsteady flow model in river network is introduced. A new topological structure is presented to describe and store the topology information and data in river network ,which realises the connection between GIS and the numerical program of hydraulic calculating and turns the program into a universal one .A new formula of internal boundary conditions with double-recursion algorithm is deduced, and the relationship of recursive coefficient between imaginary channel length and non-imaginary channel length is presented ,which makes sure that the model can comprise the numerical simulation of the internal boundaries such as side pipe outflow ,barrage, slice gate and drainage pump station.

主要工作如下：(1)根据三级解法建立了一维河网非恒定流模型，并提出了一种新的数据结构来描述和储存河网拓扑信息，方便了GIS平台和数值计算程序的衔接，实现了三级解法程序的通用性；从河段方程组出发，根据虚设河段法推导出了内边界条件的双追赶法公式，指明了虚设河段的追赶系数和非虚设河段追赶系数的关系，从而使模型可以模拟集中旁侧入流、堰、闸、水泵等内边界对行洪过程的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。