查询词典 sepia paper

Professor worked as everybody's surface to step on several feet on that paper, on the paper in India professor has moistened the full dust and the dirt footprint, then, professor asked this schoolmate to reply that this slip of paper had several destinies.

教授又当着大家的面在那张纸上踩了几脚，纸上印上了教授沾满灰尘和污垢的脚印，然后，教授又请这位同学回答这张纸片有几种命运。

Our domestic and international pulp market summary and analysis of columns and related characteristics, such as:"Pulp city scan" and "paper market" and "hundred schools of thought contend","Landscape","Products booth,""Voice of India package "In the paper industry is unique in the media, by the paper industry and related industries colleagues welcome.

本刊的国内外浆纸行情的汇总及分析和相关特色栏目，如："浆市扫描"、"纸张市场"、"百家争鸣"、"企业风采"、"产品展台"、"印包之声"等内容在纸业媒体中独树一帜，深受纸业及相关行业同仁的欢迎。

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。

Zhang Yi fierce compared paper to be read originally from square field surface read with the electron, This book has paper paper the convenience of this book, a kind screen returns reader is the problem of inextricability flexibility.

张颐武从方方面面比较了纸本阅读和电子阅读，纸本书有纸本书的方便之处，阅读器一类的屏幕还是无法解决灵活性的问题。

It is also equiped with anti-static device, auto paper tension controller, auto sheet counting and tab inserter, automatic hydraulic paper piling system and pneumatic shaftless paper reel unwinding station.

还配备有抗静电装置、自动纸张拉力控制器、自动数纸设备和标签插入器、自动液压纸张堆积系统以及气动无轴纸卷退纸台。

First of all, this paper discusses the designing of minimal system about TMS320C5402 DSP device in detail. Secondly, this paper describes the communication method between TMS320C5402 and TLC320AD50C when the multichannel buffered serial port of C5402 is set up in serial port mode. Hardware configuration and software diagram are described. Thirdly, this paper introduces a designing of human-machine interface device, including hardware interface and accompanying software routine.

首先，详细介绍了基于TMS320C5402芯片的DSP实验系统的最小系统设计；其次，介绍了TMS320C5402的多通道缓冲串口与音频接口芯片(TLC320AD50C)在串口工作模式下实现串行通讯的设计，并给(来源：5cAB9fC论文网www.abclunwen.com)出相应的硬件配置、软件流程；再次，阐述了TMS320C5402的人机接口软硬件设计；最后，本文设计出了一些基本实验和有针对性的实验。

At first, this paper surveys nonlinear control and the applications of neural networks in control respectively. Then it studies definitions, mathematical descriptions and conditions of invertibility for nonlinear systems, which are used to analyze the feasibility of inverse system control method. Conclusions about the feasibility of inverse control and the realizability of αth-order inverse systems in engineering are achieved. Furthermore, this paper discusses the feasibility, structure and identification of neural network αth-order inverse system for general single-input single-output continuous or discrete nonlinear systems and various composite control methods based on the αth-order inverse. At last, as a part work of an actual project, this paper focuses on the design of neural network αth-order inverse control method for thyristor controlled series compensation in power systems and its effect in improving the stability of power systems.

本文首先分别概述非线性系统的控制与人工神经网络在控制中的应用；然后研究非线性系统各种可逆性的定义、数学描述及可逆性条件，并用于分析逆系统控制方法的可行性，得出有关逆系统控制方法可行性的结论，阐明一般情况下α阶逆系统才工程可实现；接着本文针对一般单输入单输出连续、离散非线性系统，研究神经网络α阶逆系统的可行性、结构与辨识以及基于神经网络α阶逆系统的各种复合控制方法，并给出应用例子；最后本文结合实际项目，针对采用可控串补的电力系统，设计神经网络α阶逆系统控制方法，研究其对提高电力系统稳定性的作用。

The jib system of portal crane is considered to be elastomer in this paper. Besides, taking finite element as basic theory and mechanical dynamics as analysis method,the paper simulates the virtual luffing process of jib system and seeking the relationship between plane movement and dynamic pressure condition of jib system using ANSYS8.1. By analyzing ,the paper gives some advice on structure optimizing.

针对以上问题，本文以MQ2535门座起重机臂架系统为研究对象，将门座起重机整个臂架系统视为弹性体，以机械动力学和有限元为理论基础和分析手段，运用有限元软件ANSYS8.1模拟臂架系统的实际变幅过程，探寻物品在变幅过程中水平移动与臂架系统结构动态受力之间的关系；通过分析其受力情况，对其结构的优化提出了一些建议。

Many types of paper art paper, a form of handicraft realistic flowers, there are striking three-dimensional texture painting, as well as elegant and delicate lace like paper painting of paget door.

纸艺纸品的类型很多，有形态逼真的手工艺花，有质感突出的立体画，还有雅致细腻宛如蕾丝的帕吉门纸画。

And then, this paper presents an algorithm of computing the left inverse or right inverse for these special rectangle matrices. In thenormal algorithms for solving these problems, we need O(m2n) multiplications ordivisions. The algorithms in this paper only need O + O(n2) multiplications ordivisions. The paper is built as follows.

常规的计算m×n阶不相容线性方程组的极小范数最小二乘解的算法所需计算量为O(m~2n)，而本文根据特殊矩阵的特殊结构，通过两种不同的构造方式给出了两类不同的计算极小范数最小二乘解的快速算法，并给出了求特殊矩阵的左逆及右逆的快速算法，它们的计算量均为O+O(n~2)。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。