求解过程

Based on the analysis of the national and international development of aimed warhead and the conclusion of its developing direction, this paper establishes a model of missile meeting with target, then gives the analytic expression of optimum detonating delay time , and finally analyzes the result of imitation.

在对定向战斗部目前状况分析的基础上，建立了导弹拦截来袭目标的弹目交会模型，求解出了战斗部起爆的最佳起爆延时解析表达式，在此基础上对弹目交会过程进行了仿真，并给出仿真结果分析，对于定向战斗部的设计有一定的参考价值。

Based on establishment of viscoelasticity vibration mathematical model about rope during hoisting process in multirope friction shaft with tail rope, the rope dynamic tension was resolved.

在建立带尾绳的多绳摩擦提升系统提升过程中钢丝绳的粘弹性振动数学模型基础上，进行了动张力的求解。

Mechanics method can only solve simple engineering problems,so this paper analyses the two common structure of the sealing of tail shaft through finite element method.

针对经典力学法只能求解较为简单的工程问题的缺陷，通过有限元法对舰船艉轴的两种常用密封形式进行了动力学分析，将计算结果通过数值方法加以整合，并从中找到与实际运行过程相符的计算结果进行分析，直观地展现了两种密封结构的优缺点。

A stochastic model with initial stochastic conditions and stochastic coefficients for surge calculation was developed for the typical hydraulic system of a surge tank .

针对典型调压室水力系统，建立了具有随机初始条件和随机系数的涌波分析随机模型，从数学上严格证明了调压室涌波随机模型存在唯一的均方解，并进一步利用Liouville定理求解了其解过程的联合概率密度函数，最后给出了调压室涌波的均值解曲线

The work of this article is mainly focused on the following sections: 1）Detailed expatiated physical model of three sections and seven zones in extruding process of a single-screw extruder, and mathematical model of each zone and solutions to them.

本论文的研究工作主要集中在以下几个方面：较为详细的阐述了单螺杆挤出机挤出过程的三段、七区物理模型和各区段的数学模型及它们的求解方法。

Secret 2. In order to make the problem solving process easier, problems or design challenges are expressed as "functions."

秘密 2：为了使问题求解的过程更加容易，可以将问题或设计难题表述为&功能&。

But for condensing steam turbine, the exhaust steam enthalpy and the enthalpy of regenerative extraction steam in wet steam state region can t be d...

该方法利用蒸汽等熵膨胀过程来确定等效热降，不仅避开了求解汽轮机排汽焓的难题，而且还可以分析引起热力系统经济性降低的原因和部位，从而为汽轮机热力系统经济性诊断提供了依据。通过与常规等效热降法计算结果的对比，证明了该改进方法的正确性。

In the low dimension of system ,the equations needed in present algorithm is less than those in normal methods such as QR, SVD etc.

该方法避免了一般算法的频繁的重正交过程；且在维数不高的情况下，所需求解的方程数也较一般方法更少。

Shao L.T., Ma G.T., Cong L.F., Feng E.M., 2-D numerical simulation for the process of water infiltration and pore gas expelling, Advance in Water Science, 2002.11 13(6), 741-746

邵龙潭，马国涛，丛龙飞，冯恩民，水流入渗和气体驱替过程二维问题的耦合求解，水科学进展，2002.11 13(6)， 741-746

Firstly, on the basis of defining the characteristics of project and reviewing the mathematical models for RCPSP, we constructed the mathematical model for RCPSP under the condition that there is non-fixed duration and splittable tasks in project; In order to solve above model, we emphatically discussed the basic principle of the swarm intelligence algorithm--the particle swarm optimization algorithm as well as improvement research for current algorithm, and then proposed a new improved particle swarm optimization algorithm and analyzed its application process in the resource-constrained project scheduling problem; Lastly, in order to confirm the validity of the model and the algorithm, we took an experiment based on 108 instances that produced by problem instance generator which was developed by our team.

首先，在对RCPSP项目特征进行界定以及对项目进度优化模型回顾的基础之上，构建了基于活动工期不固定、任务可拆分特征的RCPSP的数学模型；为了求解上述模型，本文详细阐述粒子群优化算法(Particle Swarm Optimization，PSO)的基本原理以及当前对其改进的研究成果，提出了一种新的改进PSO算法，并对其在RCPSP的应用过程进行了设计；最后，为了检验模型的有效性及算法的优越性，基于梯队内部开发的案例生成器生成的108个算例，进行了仿真试验。

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。