查询词典 parameter

For the direct current decouple controller, the P1 adjustor抯 parameter of current and voltage loop抯 is designed. The correction of the designed parameter is testified by simulating on two phase synchronization coordinate and three phase stationary coordinate, the simulation wave is given.

对直接电流解耦控制器的电流环和电压环的PI调节器参数进行了设计，并通过在两相同步坐标系与三相静态坐标系的仿真验证了设计参数的正确性，同时也验证了直接电流解耦控制方案的可行性，给出了仿真波形。

Then, based on experience, statistics, statistical and mathematical methods to estimate parameters, re-use of parameter estimates to validate the model based on economic theory is correct, the last use of the revised parameter values to predict the future and planning policy.

然后，根据经验统计资料，用统计和数学方法估算参数，再利用参数估计值来验证模型所依据的经济理论是否正确，最后利用修订的参数值来预测未来和规划政策。

The study of the mineralogy indicates:(1)Few impurity and poor sulfur in thestibnite of Shalagang antimony.(2)From the stibnite's cell parameter, it finds that thecell parameter of Shalagang antimony's stibnite approachs the standard value. And iteduces the forming temperature of the stibnite is between 150℃～200℃.(3)Thequartz in different period have different thermoluminescence curve, and thethermoluminescence curves of the quartz in rich ore havethe characters of gently curve, unconspicuous peak and the luminous intensity has therelationship of positive correlation with the temperature.

矿物学研究发现：(1)沙拉岗锑矿床辉锑矿以所含杂质少，贫硫为主要特征；(2)利用晶胞参数测定得出，沙拉岗锑矿床辉锑矿晶胞参数接近于标准值，推算形成温度在150℃～200℃之间；(3)不同期次石英具有明显不同的热释光曲线，其中主成矿期石英的热释光曲线以发光曲线平缓，峰位不明显，发光强度随温度升高而增强为特征。

The first one focuses upon the fundamental theory and methods of system identification, including the basic concepts of system description and identification,review of matrix theory, stochastic process and pulse response of linear systems; the first principle models for lumped and distributed parameter systems; modeling of bioreactions; auto regressive moving average model; weighted least square and regressive weighted least square for parameter estimation of ARMA model; Runge-Kutta and Simplex methods; an example of BPNN application; as well as Kalman Filter.

第一部分包括知识驱动建模、数据驱动建模、参数估计和状态估计的基础理论和方法。具体为：(1)系统辨识和系统描述的基本概念，包括矩阵论、随机过程、线性系统的脉冲响应函数等基础知识回顾；(2)基于动态物料和能量衡算的集总参数、分布参数对象的知识驱动建模方法；(3)生物反应系统的建模方法；(4)自回归移动平均模型；(5) ARMAX模型参数的加权最小二乘参数估计一次性算法和递推算法，相应的统计性质；(6)龙格库塔法和单纯形法；BP神经网络应用实例；(7)卡尔曼滤波器，及其与加权最小二乘参数估计递推算法的对比。

After the structure of the hydraulic booster is defined, in order to solute the problems of the strength and stiffness verification aimed at the parameter design and optimization of the device, the FEA software ANSYS is applied to calculate and analyze the result, the stress and displacement distribution diagram is obtained, and the output results is analyzed in detail. At the same time, in order to reach the structure destination of optimization, the dimension parameter is altered and analyzed, then all kinds of analysis result is listed and contrasted.

在液压增力装置的结构确定之后针对这种超高压液压增力装置在参数设计和优化过程中的强度和刚度校核问题，使用有限元分析软件ANSYS进行建模及计算分析，得到了输出缸各部位的应力及位移分布图，并对输出结果进行了详细地分析；同时，改变输出缸的尺寸参数并进行分析，将各种分析结果列表对比，达到了结构参数优化的目的。

As the parameter choice is infinite, the parameter chioce needs enormous time, and is very difficult to approach superiorly.

基于此，提出一种基于混沌粒子群的支持向量机参数选择算法。

Then, it studies the supply chain management system as a complex system to confirm the state existing during operating of the system. After that, it conducts a probability analysis on the state which the system located by applying supplement variable method, and establishes the model of distributed parameter system in a form of partial differential equations. Combining C0 ? semigroup theory in the functional analysis, it conducts a dynamic analysis on the established mathematical model. Using this method, it obtains the mathematical expression of the dynamic solution and the steady state solution, and proves the uniqueness, non-negativity and the asymptotic stability of the system solution. This dissertation applies the Matlab tool and uses two-step, three-step Simpson integral equation to imitate the condition of system solution. Then, it adds possible mode of failure and the optimization adjustment state to the system, based on which it has established the distributed parameter system model which is described by partial differential system of equations. Combining the functional analysis C0 ? semigroup theory, it studies the established mathematical model, and obtains the mathematical expression of the dynamic solution system and the steady state solution. It has proven the existing of uniqueness of the system solution, the asymptotic stability of system solution and the system solution. In addition, it has lying the theory rationale for further analysis and the research on the optimization of system.

本文首先简要综述了供应链理论、可靠性研究、鲁棒性研究以及供应链鲁棒性研究的现状；然后，将供应链系统作为一个复杂系统来分析，确定了系统运行过程中所经历的状态，通过引入补充变量的方法，建立了用偏微分方程组描述的分布参数系统模型，用泛函分析中的C_0 -半群理论得到了系统动态解和稳态解的数学表达式，证明了系统解存在的唯一性、非负性和指数阶渐近稳定性；并借助Matlab工具，利用二阶、三阶辛普森积分方程模拟系统解的性态，并给出系统动态解的仿真图；本文又对上述系统增加了系统可能失效状态和优化调整状态，并在此基础上建立了用偏微分方程组描述的分布参数系统模型，同样用泛函分析中的C_0 -半群理论对所建立的数学模型进行了研究，得到系统动态解和稳态解的数学表达式，证明了系统动态解存在的唯一性、非负性及渐近稳定性，为进一步分析和研究供应链优化奠定了理论基础。

In this method, the sensitivity is performed to find the design parameter. The approximation of natural frequencies is given by the Taylor expansion with respect to the design parameter.

该方法通过对结构进行敏感度分析，确定结构中最为敏感的参数，由泰勒展式给出结构的固有频率变化与敏感参数变化之间的近似对应关系。

The composition voltage, the electric current double closed loop voltage-stabilized source, used the integrated phase shifting crystal thyratron module to do for the electrical energy transformation component, in detail has calculated the rectification main circuit main component parameter; In the pulse-duration modulation part, used the special-purpose integrated circuit to realize the frequency modulation to adjust the pressure, did take IGBT as the power transformation component, realized the output voltage frequency modulation to adjust the pressure, and has calculated the related parameter.

在调压稳压电压源设计中采用二阶工程设计法设计了电压和电流调节器，组成电压、电流双闭环稳压电源，采用集成移相晶闸管模块做为电能变换器件，详细计算了整流主电路主要器件的参数；在脉宽调制部分，采用专用集成电路实现了调频调压，以 IGBT 做为功率变换器件，实现了输出电压的调频调压，并计算了有关参数。

On the basis of kinematics analysis and model transformation, an error equation of the robot kinematics parameter is established with numerical optimization, and the optimal design for kinematics parameter is realized, which effectively increases the repositioning precision of the robot.

在运动学分析和模型变换的基础上，运用数值优化技术建立了机器人运动学参数的误差方程，实现了运动学参数的优化设计，有效提高了机器人的重复定位精度。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。