软调的

This article introduces the technology of the soft starter for belt conveyor,and compares the working principles,advantages and disadvantages of velocity modulated hydraulic coupler ,liquid sliminess soft starter,CST,frequency conversion velocity modulation soft starter,silicon-controlled velocity modulation soft starter.

介绍了带式输送机软起动技术现状，比较了调速型液力偶合器、液体粘性软起动、CST，可控硅调压调速、变频调速技术等软起动技术的工作原理及优、缺点，展望了其发展趋势，对带式输送机系统中软起动装置的选用有一定的参考价值。

In this paper, the basic principle and the power factor of conventional SERDS are discussed. Aiming at its shortage of low power factor, boost chopper type SERDS is adopted. The equivalent circuit of the new scheme is built up, and then vector diagram is used to analyze the power factor of the system, also the harmonic distortion of the system is discussed. The experiment device is established base on a 380F/7.5 kW induction motor and a passive soft switching scheme is applied in order to improve the working condition of IGBT. At last, the experimental results are shown.

本文在分析传统串级调速原理的基础上，对系统的功率因数进行分析；针对传统串级调速系统功率因数低的缺点，采用升压斩波式串级调速系统加以改进；建立了升压斩波式串级调速系统的等效电路并采用向量图法对该系统的功率因数进行详细分析；分析了系统的谐波情况；构建了以7.5kW／380V电机为调速对象的升压斩波式串级调速系统实验装置，给出相应的实验结果；针对斩波器中IGBT处于硬开关状态的缺点，应用无源无损软开关技术予以改善，包括对软开关电路工作原理的分析、参数的设计并给出相应的实验结果。

And an on-line adaptative training algorithm of the weights of neuron is given, which enhances fusion precision of the model, fault tolerance and adaptive ability for subsystems 4 In order to diagnose the soft fault of integrated system, a new fault detection method is proposed based on federated filter, which can detect fault of system in short interval and greatly enhance the method sensitivity to fault A fault diagnosis method of Dynamically Tuned Gyro baesd on parameter estimation of kinetics model of rotor, and signal pretreatment, parameter estimation and strategy of fault identification are studied in detail The method can locate fault of DTG correctly and effectively, which provides a new approach and idea for gyro fault diagonsis 5 In order to diagnose the hard fault of integrated system, fault tree analysis is studied on fault disgnosis of integrated system circuits, and the hardware and software of disgnosis system are developed, with faults located to main module and circuit For futhur diagnosis, an optimal measurement technology in detection of circuits is discussed by improving an algorithm based on information theory, and a pratical method based on half-split method is proposed.

针对组合系统的软故障诊断问题，提出了基于联合滤波模型的一种新的故障检测算法，给出了算法的理论推导过程，该算法能在较短的时间内检测出系统故障，提高了算法对故障的敏感度；研究了基于动调陀螺转子动力学模型参数辨识的故障诊断方法，就其中的信号预处理、参数辨识及故障决策方法等关键技术进行了详细的研究，该方法可以正确、有效地检测与定位动调陀螺故障，为陀螺故障诊断提供了新的途径和思路。 5。针对组合系统的硬故障诊断问题，研究了基于系统浅知识推理的故障树法在组合系统电路子系统故障诊断中的应用，开发了相关诊断系统的软硬件，故障可定位到系统的主要功能模块和电路板级。为了进一步的故障定位，研究了电路板故障的最优检测问题，完善了基于信息理论的优化算法，并提出了基于&对分法&的一种实用的优化算法，故障可定位到电路板的主要功能元件级。在组建的SINS/GPS组合系统实验平台上，针对上述研究内容，进行了大量的实验研究。

This thesis mainly deals with the packet filter firewall by applicating Netfilter on the basis of Linux, consisting of seven parts: first, it generally describes the firewall; second, it introduces the exploiting platform Linux and the software debug environment; third, it simply analyzes some networking protocols; fourth, it analyzes the network attacks and their defensing measures; fifth, it describes the most important part of the thesis--the analysis of netfilters frame and the exploiting and designing process of the firewall; sixth, it introduces the design of the device drivers of the Linux which is the theory base of exploting the users interface ; the last part is the applicating guide of its exploiting process.

本文介绍了运用Netfilter防火墙技术，在LINUX环境上实现包过滤防火墙的方法和过程，在内容上主要包括了7个部分：第1部分对防火墙的概述；第2部分则介绍此次开发的平台LINUX和软调环境；第3部分对几种网络协议做了简单的分析；第4部分分析了网络攻击及其防御措施；第5部分则是本次设计的核心部分Netfilter框架分析以及防火墙的开发设计思路；第6部分则介绍LINUX设备驱动程序的设计，它是开发用户接口部分的理论基础；最后则是所开发程序的使用说明部分。

This thesis mainly deals with the packet filter firewall by applicating Netfilter on the basis of Linux, consisting of seven parts: first, it generally describes the firewall; second, it introduces the exploiting platform Linux and the software debug environment; third, it simply analyzes some networking protocols; fourth, it analyzes the network attacks and their defensing measures; fifth, it describes the most important part of the thesis--the analysis of netfilters frame and the exploiting and designing process of the firewall; sixth, it introduces the design of the device drivers of the Linux which is the theory base of exploting the users interface ; the last part is the applicating guide of its exploiting process.

本文介绍了运用Netfilter防火墙技术，在LINUX环境上实现包过滤防火墙的方法和过程，在内容上主要包括了七个部分：第一部分对防火墙的概述；第二部分则介绍此次开发的平台LINUX和软调环境；第三部分对几种网络协议做了简单的分析；第四部分分析了网络攻击及其防御措施；第五部分则是本次设计的核心部分Netfilter框架分析以及防火墙的开发设计思路；第六部分则介绍LINUX设备驱动程序的设计，它是开发用户接口部分的理论基础；最后则是所开发程序的使用说明部分。

Based on the analyzing synchronization modulate and synchronism modulate, for the defects of synchronism modulate, uses prefabricating SPWM waves table, soft open loop synchronization model, exactitude modify and coarse modify, implements phase locking and synchronization accuracy.

在对SPWM逆变电源的两种常规调制方式与同步模式分析的基础上，采用异步调制方式，同时对该调制方式的缺点采用了SPWM波形表格预制法与软开环同步模式、粗调与精调相结合的方法，实现了高精度的锁相与同步技术。

The main engine sets(main engine, high flexible coupling, gear box) is remote ontrolled by electrical-control flexible shaft device(type: KE-4).in the bridge there is main engine sets electrical-control flexible shaft maneuvering device, remote control the speed adjusting of port, starboard main engine, engage and disengage, reverse of port, starboard gear box through maneuvering handle.

本船对主机组（主机、高弹性联轴器、齿轮箱）采用电控软轴遥控装置型号：KE-4）。在驾驶室装有主机组电控软轴操纵装置，通过操纵装置手柄遥控左、右主机调速和左、右齿轮箱的离合和换向。

The model of the asynchronous motor and the operating status under the thyristors controlled circuit are analyzed.

对电动机的模型以及在晶闸管调压电路中电动机的运行情况进行了分析，利用MATLAB/Simulink 建立了调压电路的仿真模型，运用模糊控制理论实现对电动机的软起动控制。

The oil pump control system of governor oil pressure unit at power plant of Naban reservoir was modified with contact-free,soft start,intelligent pressure control unit,which not only remove the defects from traditional oil pump motor control mode consisting of relay and contactor,but also upgrade the control automation degree,improve starting performance and permit convenient operation.

通过利用无触点的智能软启动压力控制装置对那板水库电站调速器油压装置油泵控制系统的改造，解决了油泵电动机采用传统继电器———接触器控制方式所存在诸多缺陷，提高控制的自动化程度，改善启动性能，方便操控，经过3年多的应用，运行良好，为水电站的调速器油压装置油泵控制提供了一个好的借鉴。

This text introduces the hydraulic soft start of belt conveyer,the structure and principle of the FuYiTe Brand valve control timing hydraulic coupling ware,and using it to carry on a hydraulic soft st...

本文介绍了带式输送机的液力软启动，福伊特阀控调速型液力耦合器的结构及原理，与使用它进行液力软启动，解决启动过程中出现问题的方式及效果。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。