查询词典 affine parameter

We have shown that the emission spectrum of the harmonically trapped atom is closely dependent on the initial state of the system, Lamb-Dicke parameter and the detuning parameter.

我们的研究结果表明俘获原子发射谱不仅依赖系统的初态，还与调谐参数和Lamb-Dicke参数有密切关系。

Presenting elementary comparative study between Chen-Chen three parameter concrete model and Hinton double parameter concrete model in the nonlinearly analysis.

对Chen-Chen三参数和Hinton双参数两种混凝土本构模型在非线性分析中的应用做了初步的对比分析。

The text integrate a saving network system on a city and to adjust the UNIX system function parameter on the PC-Servers, and construe and discuss hypotaxis that the UNIX system function parameter with bank application system.

本文结合一个城市储蓄通存通兑网络系统及微机服务器群UNIX系统核心参数的调整，对其参数与银行业务应用系统的相互关系进行了分析和探讨。

Modal parameter identification ERA method of source code, The method can be used for environmental inspired modal parameter identification.

模态参数识别ERA方法的源代码，可利用该方法进行环境激励下结构模态参数识别。

To power grid parameter and topology error which are two main factors for the compute result of power system analysis software , research and develop the parameter identification and topology error identification system of power grid.

针对电网参数和网络拓扑影响电力系统高级应用软件计算结果的两个主要因素，以开关有功潮流估计算法和多断面参数辨识算法为核心，研究开发了电网参数辨识与实时拓扑检错系统，并在福州电网得到了应用。

About structure system without obvious yield point, we determine its ductile coefficient by adopting the method of simulation yield process, at the same time, parameter p, parameter εand imaginary yield point elongation are present and applied into resistant earthquake engineering design.

提出了对于没有明显屈服点△y的结构体系，可以采用模拟屈服过程法确定其延性系数和p、ε假想"屈服平台"的概念，并且尝试应用于工程设计中。

The paper pointed out that the thermodynamic system state parameters have double incidence relation, the equipment aspect and the system aspect. With the research of energy consumption sensitivity analysis of two type parameter, the thermodynamic system key parameters can be confirmed for achieve the reconstruction of the operation state parameter.

本文针对以节能分析为目标的运行状态重构及运行参数优化等两个方面开展了研究工作，力求在深入的理论分析的基础上，融合数据信息资源，给出一种面向真实系统的、有效的决策方案。

First, mathematical foundation of synchronization, i.e. the theory of parameter estimation is introduced. Then, DA/DD or NDA timing synchronization methods based on the ML estimation of timing parameter are presented. They are all widely applied in actual digital communication systems. Interpolation theory in digital signal processing has application in timing synchronization, which makes the sampling clock independent of the timing control so that timing adjustment is realized completely through digital disposal. The issue of interpolation in timing synchronization is discussed.

首先，介绍了定时同步实现的数学基础，即信号参数估计理论；从定时参数的最大似然估计出发，介绍了基于数据辅助的定时同步方法和基于非数据辅助的定时同步方法，他们在实际的数字通信系统中均有广泛应用；论文探讨了数字信号处理中插值理论在定时同步中的应用，它使得接收端的采样时钟独立于定时控制，定时调整完全通过数字处理方法得以实现。

Rice ; biophysical parameter ; leaf area index ; spectral variable ; biomass ; water content ; leaf shape parameter

水稻；生物物理参数；叶面积指数；光谱变量；生物量；含水率；叶形状参数

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题：定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案：分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算，分析出对于电流型逆变器在采用定子磁场定向时，其性能同时具有矢量控制和直接转矩控制两者的优势，并对电压型逆变器在转子磁场定向下的模型进行了仿真研究；建立异步电机非线性模型，推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程，并做出了仿真结果，建立异步电机在非线性模型下的矢量控制调节器的PI参数设计，在实际应用中，若忽略电机电感的动态变化，可以根据当前的磁路饱和状态而在线修正电感参数，从而将非线性方程线性化，降低控制器的复杂度；考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出，本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题；推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通，用于实现高性能的矢量控制算法，并给出了仿真结果；推导出了电动汽车恒转矩给定的闭环回馈制动系统，实现了电动控制模型和制动模型的统一，而且结合铅酸电池最大充电电流的要求，为制动转矩在线给定建立了数学模型；设计了基于双DSP系统的高性能矢量控制器软硬件框图，并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48