查询词典 parameter representation

A nonlinear adaptive speed controller based on adaptive backstepping approach for permanent magnet synchronous motors with nonlinear coupling and parameter uncertainties is presented. With the preposed controller, the parameter uncertainties are compensated and high performance speed controller for permanent magnet synchronous motors is shown to be globally asymptotically stable. The scheme is robust to the parameter uncertainties and load torque disturbance.

针对永磁同步电动机系统的非线性耦合特性以及参数的不确定性，采用自适应反步控制实现永磁同步电动机的非线性控制，在补偿参数不确定性影响，提高系统的抗干扰能力的同时，实现了永磁同步电动机的高性能全局渐近稳定速度跟踪控制。

Based on the characteristics of parameterized design and key technologies of knowledge based engineering, and specially according to the characteristics of the construction, figure, assembly-parameter of bicycle frame design, the article has achieved repeated using of experiential parameter and knowledge by adopting methods such as automatic reading experiential datasheet, computing parameter by making use of program, manual data-input or modifying and so on. Based on analyzing the characteristics of Rear End design and the associated characteristics with Chain Stay and Seat Stay, different design methods are analyzed in detail, and rapidly assembling of Rear End, Chain Stay and Seat Stay is achieved by using the method of combining top-down-assembly with down-top-assembly method. Based on analyzing special technologies and UDF characteristics, the repeated using of different sectional shapes by using UDF technology on the tube section design is also achieved, and this will greatly shorten the time spent on fixing the dimensions and orientations on sketches.

在探讨了参数化设计技术特点和知识工程关键技术的基础上，针对自行车车架设计中的结构、形状、装配参数特点，分别采用了读入经验数据表、参数程序求解、手工录入或修改方法实现车架设计经验参数和知识的重复利用；在分析自行车后叉片设计特点及与平、立叉的关联特性的基础上，对不同的设计方案进行了详细分析，并采用自顶向下和自底向上相结合的方法，实现了后叉片的快速装配定位与平、立叉设计相关联；在分析了特征技术和UDF特点的基础上，将UDF用于管件截面的设计上，使各种截面形状能不断重复利用，大大节省了约束草图尺寸和位置的时间。

Assume a Lie algebra g has a form B which has all the useful properties of Killingform:bilinearity nondegeneracy,symmetry and invariance.Note that for such a Liealgebra the adjoint representation is equivalent to the coadjoint representation.We callit a symmetric self-dual Lie algebra and the form B an invariant scalar product.

在第一部分的最后一节，我们引进了拟Heisenberg代数的概念，证明了这些李代数均为具有非极大秩的CN李代数，进一步我们还证明了这些CN李代数构成的集合与极大秩幂零李代数构成的集合之间存在着1-1对应关系。

By analysis of frequency spectrum based on MATLAB platform, wavelet method in the application of cutting out a section of inputting earthquake wave was presented. In the process of pseudo dynamic test results, the method of non-dimensional representation and analytic representation of hysteretic curve was provided. The above two methods will help to compare dissipation energy capacity of this structure at the different acceleration peak value stage of pseudo dynamic test more precisely and comparably.

通过基于MATLAB的地震波频谱分析，说明了小波分析方法在拟动力试验中地震波截取方面的应用：在拟动力分段试验数据的处理方面，本文将试验结果的无纲量表示方法以及曲线的多项式拟合法引入滞回曲线的数据处理，这将有助于拟动力试验不同加速度峰值条件下，各阶段结构耗能能力的客观比较。

Words are not themselves a reality but only representation of it,and the King's English,like the Anglo-French of the Normans,is a class representation of reality.

单词本身并不是客观物体，只不过是代表客观体而已；像日尔曼人的盎格鲁法语一样，标准英语也是一种代表客观体的语言。

Words are not themselves a reality but only representation of it, and the King's English, like the Anglo-French of the Normans, is a class representation of reality.

单词本身并不是现实，只不过是用以表达现实的一种形式而已；像日尔曼人的盎格鲁法语一样，标准英语也是一个阶级用来表达现实的一种形式。 King's English不能直译为"国王英语"，它是指标准英语，相当于汉语中的"普通话"。

Words are not themselves a reality but only representation of it, and the King's , like the Anglo-French of the Normans, is a class representation of reality.

单词本身并不是客观物体，只不过是代表客观体而已；像日尔曼人的盎格鲁法语一样，标准英语也是一种代表客观体的语言。（ King's English 不能直译为"国王英语"，它是指标准英语，相当于汉语中的"普通话"。

In this thesis, we aim at solving the geometrical representation of some anomalistic objects. We try to combine the realistic representation and real-time control of the virtual natural scenes.

本论文工作旨在解决虚拟环境中不规则物体的表现问题，并达到虚拟场景的真实感和对其操作的实时性的较好结合。

Requiring a particular number representation and arithmetic 3.2.1.1 Internal number representation

需要一个特别的数字展现和算术 3.2.1.1 内部数字展现

From this point, this thesis introduces Arnheim's Gestalt theory, Gombrich's explanation on art history and pictorial representation, and other theories on visual perception and graphic representation, reviews the architectural drawings in China and Western world history, discusses their cultural attributes and the psychological foundation on their origination and evolution, as well as their apparent characters and practical values.

由此出发，本文引入了阿恩海姆的格式塔学说、贡布里希的艺术发展和再现理论及其他有关视觉和图示再现的艺术心理学理论，考察了中国及西方的建筑制图发展历程，说明了各类建筑图像资料的外在形式特征和实用价值，进而探讨了其发生发展的心理学依据和文化属性。

Bob Eckert has been chairman and chief executive of Mattel for eight years.

美泰董事长兼首席执行官鲍勃·埃克尔特在任已8年。

The outlook for honors and disgraces carries on and surpasses the traditional outlook for honors and disgraces theoretically, and carries on and develops the theory of construction of socialist mora...

社会主义荣辱观的提出在理论上是对传统荣辱观的一次继承和超越，是对社会主义道德建设理论的继承和发展，在实践上有利于形成良好的社会风尚。