查询词典 Lagrangian

Based on the phase-space generating functional for a system with a singular higher-order Lagrangian,the quantal canonical Noether identities under the local and non-local transformation in phase space for such system have been derived.

基于高阶微商奇异拉氏量系统的相空间生成泛函，导出了定域和非定域变换下的量子正则Noether恒等式；对高阶微商规范不变系统，导出了位形空间中定域和非定域变换下的量子Noether恒等式。

Using the Second Lagrangian kinetics,the dynamic features of the robot are analysed,the generated driving torque of the arms is derived,and its dynamical models are set up.The sliding-mode fuzzy control is adopted by of the MJR120 palletizer,and the numerical simulation shows that the control method is efficient.

本文经过对该机器人进行的详细动力学分析，确定了系统的广义驱动力，运用第二类拉格朗日方程建立了系统的动力学模型；对MJR120 码垛机器人在控制上采用了滑模模糊控制技术，通过仿真实验表明了该控制方法对MJR120码垛机器人进行控制的有效性。

According to the effective Lagrangian given by SU(3) symmetry , we calculate the relation of coupling constant gV Pγof SU(3) nonets.

混合以及η？η混合，计算出物理态耦合常数gV Pγ的关系。

The mathematical model of complex countercurrent multi-effect evaporation with condensed water flash is established, which aims at minimum annual cost (including cost of fresh vapor, vacuum pump power, evaporator, maintenance and depreciation).Based on such decisive variables as the pressure of fresh vapor, the pressure of condenser and heat-transfer mean temperature difference of vari-effect,the model is solved by the complex method,Lagrangian multiplier method, iteration method and matrix method.The practical example indicates that the influence of the pressure of fresh vapor, the pressure of condenser and flash of condensed water on the optimum design results is notable.

建立了带有冷凝水闪蒸的复杂逆流多效蒸发系统优化设计的数学模型，该模型以整个蒸发系统的年总费用(包括加热蒸汽年费用、真空泵年动力费用以及蒸发器和辅助设备的年折旧维修费用等)最小为优化目标，以生蒸汽压力、冷凝器真空度及各效有效传热温度差为决策变量，提出一种新算法———复合形法结合Lagrangian乘子法、迭代法和矩阵法求解模型。

The objective of this study was to analyze the square cup stretching process by using the dynamic explicit finite element analytical program, which was based on the Updated Lagrangian Formulation and elasto-plastic theory. Simulation results included the deformation and crack propagation history, the variation of the work piece thickness, the Forming Limit Diagram, and the relationship between punch load and punch stroke. A set of tools was designed for the square-cup stretching experiment to verify the reliability of the program.

中文摘要本文采用显性动态有限元素法，结合材料弹塑性理论，发展出一套三维增量型之有限元素分析程式，进行金属板材方杯拉伸成形制程及破裂之分析，并探讨方杯拉伸成形历程及裂纹成长历程、工件厚度变化、成形极限图(Forming Limit Diagram， FLD)，及冲头负荷与冲程关系，并设计一组方形冲模来进行方杯拉伸成形实验，以验证程式的可信度。

Based on large strain theory, an analysis model of FEM on the basis of Updated Lagrangian is created.

本文依据大应变理论，建立基于Updated LagrangianU。

The methods applied mainly include Euler method and Lagrangian method, for simulating the fluid phenomena such as smoke, fire, explosion, wave, bubble, free surface etc.

其方法总体上可以分为欧拉法和拉格朗日法，涉及的现象包括烟雾、火焰、爆炸、波浪、气泡以及自由运动界面等。

The methods applied mainly include Euler method and Lagrangian method, for simulating the fluid phenomena such as smoke, fire, explosion, wave, bubble, free surface etc.

本文主要探讨基于物理的流体模拟计算机动画，其中涉及的现象包括烟雾[1]、流体运动界面[23]、波浪[4]、气泡[5]、火焰[67]以及爆炸[8]等。

A new symplectic Lagrangian density and Faddeev-Jackiw generalized brackets of the gauge invariant self-dual fields interacting with gauge fields have been obtained and FJ quantization of this system has been presented.

用Faddeev-Jackiw方法对与规范场偶合的规范自对偶场进行了研究，获得了一个新的辛Lagrangian密度，导出了此系统的FJ广义括号，并对其进行了FJ量子化。

To solve the problem, the error estimates for multivariate Lagrangian interpolates are given. From this, the upper bound of the rule number for a good multi-input fuzzy controller can be found out. The errors for a fuzzy controller to approximately precise control can be obtained after determining fuzzy rule base.

为讨论此问题，给出了多元Lagrange插值公式的误差估计式，并据此推导出一个好的多输入模糊控制器所需规则个数的上界，当模糊规则库确定之后，可求得用模糊控制器逼近精确控制时的误差。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。