查询词典 method

By using this method, the angular frequency, amplitude, initial phase angle, decay constant of each component in transient voltage and/or current waveforms can be precisely extracted. Also, all other kinds of transient procedure can be analyzed by this method. Thirdly, a new definition of generalized instantaneous reactive power and generalized instantaneous reactive current in dq0 coordinates under any nonsinusoidal and unbalanced three-phase circuit is proposed for the first time. The detection and compensation method for different instantaneous reactive currents are also concerned.

本文首先提出了用于快速高精度频谱分析的一种改进快速傅立叶变换方法，该法具有速度快、精度高、抗混迭、不受采样定理约束、可以分析出谐次大于N／2的频谱系数等特点，可方便地应用于电力系统谐波分析及其它各类频谱分析；然后提出了基于非线性最小二乘优化法的电力系统暂态波形分析方法，可准确求出电力系统暂态电压、电流波形中各个分量的角频率、幅值、初相角及衰减常数，并可广泛应用于各类暂态过程波形分析。

A novel method of unit commitment scheme selection method is proposed based on fault current sensitivity and combination optimization. Using this method, calculation and verification of tremendous unit commitment schemes are avoided.

本文利用各机组对短路点短路电流的灵敏度和组合优化技术，实现了限制短路电流停机方案的快速选择，避免了对大量机组停机组合方式的逐一计算和校验。

The problem of water leakage from curtain for cutting off water is reasonably solved after the conception of apparent connection width and construction method of big connection width in curtain for cutting off water in deep-mixing piles are proposed from practical engineering need. The economical benefit of the construction method of big connection width is better than that of construction method of traditional connection width.

6从实际工程需要出发，在深层搅拌桩止水帷幕中提出了视搭接宽度的概念和大搭接宽度设计施工方法，较好地解决了止水帷幕中桩间开叉漏水的问题；大搭接宽度施工方法与传统搭接宽度施工方法相比，还具有较好的经济效益。

This article uses the literature material law, the cut-and-try method, visits the survey procedure, the mathematical method of average and so on, in the back more -like high jump teaching, the use skill migration rule, begins from the interesting teaching to create the thin raw white silk and the design sports game, and utilizes it in the back -like high jump experiment teaching, through the teaching discovered utilizes the game teaching method in the back more -like high jump teaching, not only is advantageous to the student to complete technical movement grasping, moreover is advantageous to the change former back -like high jump teaching arid tasteless aspect, thus enhances the teaching effect.

本文采用文献资料法、实验法、走访调查法、数理统计法等，在背越式跳高教学中，利用技能迁移规律，从趣味性教学着手创编与设计体育游戏，并把它运用于背越式跳高实验教学中，通过教学发现在背越式跳高教学中运用游戏教学手段，不仅有利于学生对完整技术动作的掌握，而且有利于改变以往背越式跳高教学枯燥乏味的局面，从而提高教学效果。

This article involves in plane cutting method to generate the measuring path and calculate the measuring point. The method to calculate the anchor point and the offsetting method are giver by the author.

本文研究了截平面法生成理论测量路径和计算测量点，给出了简单稳定的方法计算测量点，计算定位点的算法采用了等距法

Four triatomic heterocyclic compounds, cyclopropane , oxa cyclopropane , ethyleneimine and thiirane were fully optimized utilizing Gaussian94 program package with a density functional theory method B3LYP and an ab initio method MP2 at 6-311 ++G** level, and the theoretical results agrees well with the reference data, which shows that this method is reliable.

使用Gaussian94程序包和密度泛函方法B3LYP以及从头算方法MP2在B3LYP／6-311++G**基组水平上，对4种三元杂环化合物环丙烷、环氧乙烷、环乙亚胺和硫杂环丙烷进行了全优化，其理论数据和文献数据符合得很好，这表明该方法是可靠的。

Four triatomic heterocyclic compounds, cyclopropane, oxacyclopropane, ethyleneimine and thiirane were fully optimized utilizing Gaussian94 program package with a density functional theory method B3LYP and an ab initio method MP2 at 6-311++G** level, and the theoretical results agrees well with the reference data, which shows that this method is reliable.

程学礼 ，赵燕云使用Gaussian94程序包和密度泛函方法B3LYP以及从头算方法MP2在B3LYP/6-311++G**基组水平上，对4种三元杂环化合物环丙烷、环氧乙烷、环乙亚胺和硫杂环丙烷进行了全优化，其理论数据和文献数据符合得很好，这表明该方法是可靠的。

In the aspects of research method, we took the method of preparing sol at first and then impregnating the wood to obtain ceramic-wood composite; this method made the wood use efficiently and increased the wood's weight gain percent. The ceramic-wood composite with performances of well decay resistance, dimensional stability, effloresce resistance and high strength was obtained by importing the cymene to the net of gel as the result of co-hydroxylation between MTES and TEOS. Making use of XPS ,we found that the apex of Si2p、O1s、C1s had evident chemical shift , which validated the existence of Si-O-C bonding.Key Words: Sol-gel, Ceramic-wood composite, Modified sol, Ecomaterials

在工艺方法上，采用先制备溶胶，然后浸注木材的工艺方法具有原料利用率高、提高增重率的优点；采用甲基三乙氧基硅烷和正硅酸乙酯共水解的方法，将甲基引入陶瓷化复合木材的凝胶内部，所制备的材料具有尺寸稳定性好、具有耐风化和耐腐朽性，强度高的特点；首次利用X射线光电子能谱，发现了Si2p、O1s和C1s谱峰发生了明显的化学位移，证实了Si－O－C键合作用的存在。

The governing equation of in-plane vibration of cable-restraint system is derived by means of D'Alembert principle, and then those partial differential equations are transformed into a set of ordinary differential equations by Garlerkin method. The method of Runge-Kutta integration is applied to solve the equation. The simulation analysis is made to prove that this vibration control has obvious damping effects and then the influence of cable tension, support mass, natural frequency and spring stiffness on the damping are discussed. Eventually, the approximate analytic solution of the optimum damping parameter is obtained to provide a simple and effective reference and design method for the engineers.

通过D'Alembert原理建立拉索－弹性约束系统振动方程，通过Galerkin方法将偏微分方程转化为常微分方程，应用龙格－库塔积分法求解方程；经过仿真分析，验证了该振动控制具有明显的减振效果，并且讨论了初始拉力、支座质量、振动频率及弹簧刚度对减振效果的影响；最后给出了计算最优阻尼参数的近似解析式，为工程师提供了简便有效的参考依据及设计方法。

This article examines the dairy industry in the light of the analysis frame of the industrial chain with industrial organization\'s SCP analysis model, the game theory analysis method, the value chain analysis method, the case analysis and the econometric analysis method and has carried on a systematically theoretical discussion of and the empirical analyses of five key links of the longitudinal dairying industry chain and their cooperation mechanisms.

本文把奶业纳入产业链的分析框架，运用产业组织的SCP分析范式、博弈论分析方法、价值链分析方法、案例分析和计量经济分析方法对乳业纵向产业链的五个主要环节及其协作链接方式进行了系统的理论探讨和实证分析。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。