查询词典 track system

For existing problems in robot planning, disadvantages and difficulties in self-organization NN applied to robot track planning, and the features in self-organization rival network, a theory model of the TSPSONN is provided in order to resolve some problems producing easily fuzzy or uncertainness of track reconstruction Consequently, theory evidence and applied basis are offered for complicated track control of telerobot control system.

针对机器人轨迹规划中存在的问题，以及目前用于机器人轨迹规划的自组织神经网络存在的缺陷和困难，并结合自组织竞争网络的特点，提出一个自组织神经元网络时序处理算法的理论模型，用来解决具有重复／共享状态易于产生轨迹重构时的模糊性或不确定性问题，从而为网络远程机器人控制系统进行复杂的轨迹控制提供了理论依据和应用基础。

Setting up city track transportation system is the way to solve the traffic in the cities, and to realize substanable development. There have tow reasons: first, city track transportation has many merits, great capability, quick speed, safety on time, low cost, saving energy, catabatic traffic block on the ground, protecting the environment and so on; second, though track transportation, the develop derection of city constructure turns from single-center homocentric cirlarity mode to multi-center axes mode.

修建城市轨道交通是解决当前大城市交通问题、实现可持续发展的有效手段，其表现有二：第一，城市轨道交通具有运能大、速度快、安全准时、成本低、节约能源、能缓解地面交通拥挤和有利于环境保护等优点；第二，城市轨道交通的修建使城市结构的发展方向从单中心同心圆结构转向多中心轴线式结构。

Therefore, since the early 1960s, countries around the world have been carried out to the overall rail-bed, or curing alternative granular ballast of the various Ballastless track structure of the system, some countries have Ballastless track as the main high-speed railway Track structure of a comprehensive application.

因此，自上世纪六十年代初，世界各国铁路相继开展以整体式或固化道床替代散粒体道碴的各类无碴轨道结构的系统研究，一些国家已把无碴轨道作为高速铁路的主要轨道结构型式全面推广应用。

In order to solve the problems of bad shunting and red light strip phenomenon at electric railway section caused by the defective of asymmetric pulse track circuit receiver formerly, a new type of asymmetric impulse track circuit receiver is designed. It takes the PIC16F887 single-chip microcomputer as central processing unit of the system, realizes processing and judging the asymmetric impulse from the track transformer automatically. The article focused on the receiver work flow, hardware circuit and software design.

摘 要：为了解决以往多数不对称脉冲轨道电路接收器存在缺陷而导致的分路不良问题和电气化区段空闲&红光带&现象，设计了一种新型脉冲轨道电路接收器，系统以PIC16F887单片机为核心处理单元，自动实现对由轨道变压器传来的不对称脉冲信号进行处理和判决，重点讨论了接收器工作流程、硬件电路实现以及软件设计。

The following exciting results are revealed: 1 When considering the influence of some nonlinear elements such as hard-limit of exciters, the effects of some devices such as Power System Stabilizer and Static Var Compensator which can introduce positive damping in power system, the reasonability of system parameter values in simulation, the SNB surface and HB surface on the boundary of SSSR will turn close to each other and even coalesce together; 2 Under some conditions, coupling between slow exciters and shunt capacitors will bring negative damping in power system dynamics, which increases the possibility of oscillatory instability. So the power system with mass shunt compensators is easily subjected to the oscillatory instability. In recent years, chaotic phenomena of power system have been reported many times. Some simulation studies even found chaos existing inside the power system SSSR. In this dissertation, chaotic phenomena in power systems are thoroughly studied in order to make clear the relation of chaos and SSSR. The following results are derived: 1 Based on Li-Yorke Theorem and their definition on the chaos, the existence of chaos in power system is verified; 2 Three possible routes of causing chaos in power system are found and deeply investigated. They are route of cascading period doubling, route of directly initial energizing and route of torus bifurcation (or quasi-periodicity). The latter two routes are investigated for the first time in power system stability studies; 3 When the stability conditions of chaos are broken, it is found they can lead to voltage collapse, angle divergence, or voltage collapse with angle divergence simultaneously.

针对在电力系统小扰动稳定区域内可能存在混沌吸引域的有关报道，本文深入研究了电力系统混沌现象的出现途径和与系统失稳模式之间的关系：1利用Li-Yorke定理和Li-Yorke的混沌定义，从理论上证明了电力系统混沌现象的存在性；2发现了电力系统中导致混沌出现的三种可能途径：倍周期分岔导致混沌、初始能量直接激发混沌和经由环面分岔导致混沌，并对后两种新发现的途径进行了较为细致的研究；3发现了混沌极限环破裂导致电压崩溃、角度失稳以及电压崩溃和角度失稳同时出现的现象，其中混沌极限环破裂导致系统角度失稳和电压崩溃及角度失稳同时出现的现象均属首次报道；4证明由微分-代数方程描述的系统模型，其小扰动稳定域的边界只包含HB、SNB和SIB三种分岔界面，在SSSR的内部和边界上，均不可能存在会导致混沌的点，从而将混沌现象排除在小扰动稳定域的研究之外，简化了后者的研究工作。

Factory remaining hot water, remaining vapor and boiler heating system, were adopted in tilapia overwintering. Every step, such as site selection, pond and fish preparation, cultivation of fish, fish selection, timing of overwintering, stocking density and managements during overwintering, was compared among three systems. The results of data analysis showed that the survival rate in remaining hot water system was 12% higher than in remaining vapor system and 21.25% higher than in boiler heating system. The overwintering cost in remaining hot water system was 735 Yuan/m~3, which was 18 Yuan lower than in remaining vapor system and 71.4 Yuan lower than in boiler heating system. The profit in remaining hot water system was 201 Yuan/m~3, which was 162 Yuan higher than in remaining vapor system and 275.4 Yuan higher than in boiler heating system.

本论文采取了余热水、余热气、锅炉加温三种方式对进行罗非鱼越冬保种，从地点选择、越冬池、鱼的准备、越冬苗种的培育、越冬前催肥、越冬鱼的选留、越冬鱼进池时间和密度、越冬期间饲养管理等环节进行对比试验获得了三种方式的试验数据并进行了分析讨论，结果显示：余热水越冬雌亲鱼的成活率比余热气越冬高出12％、比锅炉加温越冬高出21.25％；余热水越冬雌亲鱼的成本每立方米为735元比余热气越冬的成本每立方米低18元、比锅炉加温越冬的成本每立方米低71.4元；余热水越冬雌亲鱼的利润每立方米为201元比余热气越冬的利润每立方米高162元、比锅炉加温越冬的利润每立方米高275.4元。

After analyzing the shortage of classical track following control rule, the abscissa error of track position of the robot is introduced in the method to fasten the track approaching speed, as well as the combined function of manual field and position error is applied to control the orientation of the robot.

在分析经典轨迹跟踪控制律缺点的基础上，方法中引入了机器人跟踪位姿误差的横坐标误差以加速机器人的轨迹逼近速度，并采用人工场和位姿误差协同作用来共同完成机器人的导向控制。

The absolute coding model360°angle sensor is us ed for inducing the angles and positions of the track type sphere welding machin e.Knowing the distances from two end points of the track to the weld-groove w e calculated,mathematics formulas of the distance of the any position of track to weld-groove.

采用了一种绝对编码式360°倾角传感器作为轨道式球罐焊机的角度位置传感器，在已知轨道两端点至焊接坡口横向距离的前提下，进行了整个轨道任意位置与焊接坡口间横向距离的数学公式推导。

The track structure of low electron, proton and alpha particle in water as a media has been calculated with Monte Carlo method. The spectrum of DNA damages has been simulated by the track structure model. Then the surviving fraction at different dose level is calculated by connecting track structure and phenomenological dynamic model.

在理论方面，对电子、质子和α粒子在水中的径迹结构进行了系统地研究与计算，还编制了我们自己的质子的蒙特卡罗模拟程序；用径迹结构模型计算出电离谱并与动力学模型相联系，计算出有实用价值的成活率。

When train running on the track, there has interaction between whiles and track, and the track will bend because of the weight of wheel. The bend wave will propagate to box-beam and further to bridge pier. Then the vibration propagate to around soil through the bridge pier, which can cause the second vibration on buildings.

列车运行时，车轮和轨道间存在着相互作用，由于轮重的作用使轨道产生弯曲变形，弯曲波通过轨道垫块传给箱型梁，进一步传递给桥墩，然后振动通过桥墩向周围土中传播，从而进一步引发建筑物的二次振动。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。