查询词典 inverted

The second order mathematical models of inverted pendulum system are expatiated in this paper based on the theory of LQOC(Linear Quadratic Optimal Control), LQY(Linear-Quadratic Yield) controller and LQR(Linear-Quadratic Regulator) are designed to make the inverted pendulum system closed loop stable.

针对倒立摆的稳定控制问题，阐述了二阶倒立摆的数学模型，采用线性二次最优控制理论，设计了倒立摆控制系统的线性二次型调节器和线性二次型输出器，使倒立摆系统闭环稳定。

It is understood that total length of 336 meters of the White Horse Gate River inverted siphon movements concrete pipe 200 meters, concrete pipe inverted siphon Body Overall width 33 meters, will need to install 3079.5 tons steel production, 33,137.5 cubic meters of concrete poured.

据了解，总长为336米的白马门河倒虹吸混凝土管身段200米，倒虹吸混凝土管身总宽33米，需要安装3079.5吨钢筋制作，混凝土浇筑33137.5立方米。

The self-balancing vehicle introduced in this article is a new style of inverted pendulum; we call it "mobile inverted pendulum".

摘要倒立摆的控制是控制理论研究中的一个经典问题，本文介绍的自平衡电动车就是一种新式的倒立摆，我们称它为移动式的倒立摆。

Human Simulating Intelligent Control are introduced as comparison with above approaches. Typical nonlinear system: simple inverted pendulum and double inverted pendulum are simulated. The characteristics and applying range of each algorithm are discussed and compared.

本文详细讨论了典型的非线性系统倒单摆、一级和二级倒立摆为控制对象的建模与控制，并以倒立摆为被控对象对上述每种算法的特点和适用范围分别作了讨论和比较。

Based on the theory of inverted STM image of Chen, we predict that if one uses a tungsten tip made of W (111), W (110) or W (001) surface, an inverted STM image may be observed under small bias voltages.

基于Chen的图像反转理论，预言在STM实验中如用W（111），W（110）和W（001）单原子钨探针，在小偏压条件下，可能会观测到STM负像，这三类钨针尖中利用W（110）针尖最容易观察到这类现象。

These antennas can cover GSM900/DCS/PCS/UMTS operation. In the chapter 2, the antenna is designed based on the concept of monopole antenna. Furthermore, the antenna structure have two radiant paths and coupled each other at tail end to do impedance matching. In addition, to raise distance between radiation plane and ground will avoid capacitative effect effectually. In the chapter 3, the antenna is designed based on the concept of planar inverted-F antenna. Furthermore, that the antenna structure have two radiant paths and coupled each other at tail end to do impedance matching is similar to chapter 2. But there is a difference in them. We can choose the short position to change input impedance at this structure. In the chapter 4, the antenna is designed based on the concept of planar inverted-F antenna which takes coupled-fed. It will produce the first mode and high-order mode near the frequency, 900MHz. The feature of this type is to reduce the volume effectually. This antenna can not only cover GSM900/DCS/PCS/UMTS operation but maintain good radiation efficiency. Finally, we will compare three antennas, and develop procedure with industrial view, and propose the prospect of the GSM/GPRS antenna in PND, as a conclusion.

在第二章中，我们使用单极天线设计概念，使用双路径架构并於末端耦合来对天线阻抗做匹配，产生涵盖GSM900/DCS/PCS/UMTS四频操作频带，并提高与接地面的辐射高度，以避免电容效应，使天线具有良好的辐射特性；在第三章中，使用倒F形天线设计概念，使用双路径架构於末端耦合，并於辐射臂上采取适当接地点电感效应作输入阻抗匹配，达成涵盖GSM900/DCS/PCS/UMTS系统的四个操作频带；在第四章中，采用倒F形架构并使用耦合馈入方式，使得长辐射金属臂在低频900 MHz附近产生共振，产生低频基频模态及高阶模态，以达成宽频及频宽涵盖GSM900/DCS/PCS/UMTS频带操作，并有效缩减使用体积；最后，分别比较此三种架构的优缺点，再加以业界角度来思考，研发产品天线的流程及思考方向，以及天线应用於可携式导航装置中未来的展望作为本论文的总结。

Numerical simulation for this event is performed using the non-hydrostatic, two-way interactive, triply nested grid mesoscale model MM5 and the structure of the inverted typhoon trough is studied. Furthermore, the formation and development mechanism of the inverted typhoon trough as well as the meso-scale vortex are discussed through the budget of vorticity equation.

采用双向三重嵌套网格非静力模式MM5对这一过程进行了数值模拟，研究了台风倒槽的中尺度结构特征，并通过涡度收支探讨了台风倒槽及中尺度低涡发生发展的物理过程。

That is to say, it is the moment before the sunset, the golden sunrays irradiate upon the Biji Archway from the west, casting its inverted image to the east street. At the same time, the moon has just rises from the east, its silver moonlights reflecting the Jinma Archway, casting the inverted image to the west street. With the movement of the sun and moon, the shadows of the two archways gradually draw closely, finally totally connected.

就是有那么一天，太阳将落未落，金色的余辉从西边照射碧鸡坊，它的倒影投到东面街上；同时，月亮则刚从东方升起，银色的光芒照射金马坊，将它的倒影投到西边街面上；两个牌坊的影子，渐移渐近，最后互相交接。

Simultaneous inverted and non-inverted wavelength conversion based on cross polarization modulation in semiconductor optical amplifier.

基于半导体光放大器交叉偏振调制效应实现正、反相波长变换。

Firstly, this dissertation explores the concepts of the innovative behaviors based on slack resources. From the viewpoint of the existing forms and available discretion of slack resources in enterprises, this dissertation divides the slack resources into physical slack, human resource slack, and financial slack, and brings forward the inverted U-shaped relationship model between physical slack and technological innovation, the inverted N-shaped relationship model between human resource slack and technological innovation, the N-shaped relationship model between financial slack and technological innovation.

基于此，本文基于资源冗余观、创新观、激励理论，深入研究了企业员工的基于冗余资源的技术创新的激励问题，具体来讲，全文在介绍研究背景、目的、意义、内容及国内外相关研究文献综述的基础上，从四个侧面研究了基于企业冗余资源的技术创新的激励机理和激励机制：首先，研究了基于企业冗余资源的技术创新行为的相关理论。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。