而在群系统中，正反馈却能导致秩序的递增。
But in swarm systems, positive feedback can lead to increasing order.
从知识获取、正反向推理及知识库等方面探讨了液压故障诊断智能专家系统的建立和实现。
This paper discusses the establishment and realization of intelligent expert system for hydraulic troubleshooting through knowledge obtaining, positive and negative reasoning, and knowledge database.
为保证施工顺利进行，且提高安全性，对正反导井及扩挖系统进行了多项技术改进，提高了安全系数。
The some techniques of guide shaft and expansion excavation are improved for assure the successful construction and raise the safety coefficient.
冲切成槽薄壁混凝土防渗墙施工技术是在原冲击成槽建造防渗墙的基础上，对冲击钻头和施工工艺加以改进，用扁钻头代替十字钻头，用正反两种循环系统进行泥浆循环的一种新防渗墙施工方法。
The present technique is a new thin cutoff wall construction method by modifying the original method as to use flat drill bit instead of cross bit and adopt positive and negative circulating system.
控制系统可按所使用的反馈类型即正反馈和负反馈来区别。
They include positive and negative feedbacks by their type of feedback.
根据系统改造设计中所需的领域知识，建立了相应的专家系统知识库及表达形式，设计出正反混合推理的控制策略。
The correspond to oil field experience expert system knowledge base and expression have been established, positive and negative mixed inference control strategies have been designed in this system.
采用电脑数字控制系统，针距、珠点、半针按钮，自动正反点、倒缝、花样线迹设定，一屏操作，轻松方便。
Adopt digital computerized control system, needle stitch , stitch length, Automatically positive and negative points, backstitch , stitch pattern setting , one screen operation, easy to operate.
而旅游业对当地环境也有正反两方面的影响，如果开发得当，可以使当地的社会-环境-经济系统进入良性循环，反之，当地的生态平衡有被破坏的危险。
The local Society-Environment-Economy system can be made into the good balance because of tourism, otherwise, the local ecological balance perhaps will be in danger of demolishing.
在音响设备中出现的振荡频率极低的低频振荡，常因放大系统的正反馈回路引起。
In audio, a very low frequency oscillation often resulting from a positive feedback path in an amplifier system.
在系统中，用计算机软件替代了由缓冲寄存器、环形分配器、控制逻辑及正反转控制门组成的步进电机控制器。
In this system, computer software was used to replace stepping motor controller which consisted of buffer, annular allotter, control logic and control doors of clockwise and counterclockwise running.
以系统动力学理论为基础，结合产业集聚效应的正反馈特征，对人才流、技术流、资金流和市场流的因果关系进行了探讨。
Based on theory of system dynamics, the causal loop diagrams of manpower, technology, money and market flows are analyzed together with positive feedback of industrial agglomeration effect.
指出了牛鞭效应产生的原因是由于供应链系统需求预测所表现出的正反馈动力学特性。
The paper claims bullwhip effect is caused by the active feedback dynamics feature presented by the demand predicts of supply chain system.
这种控制方法虽然是有效的，但是它容易导致系统正反馈。
This control scheme is effective, but it may introduce positive feedback.
本文采用正反向混合推理机制，深度优先的控制策略建立了一个基于知识的汽车传动系故障计算机辅助系统。
This paper has set up a computer aided diagnostic expert system for automotive drive line by way of forward and backward combined reasoning and depth optimal theory.
采用新型薄膜铂温度传感器设计了多点温度检测系统，使用正反馈型线性校正电路使输出电压与温度成线性关系，从而提高了检测系统的测量准确度。
The linearity correction circuit of positive feedback can make the output voltage be linear with the temperature, so the measurement accuracy of the system is improved.
在系统实现中，采用基于关系型数据库和C -F模型进行知识库的设计，用正反向混合推理控制策略进行不确定性推理。
In implementing of the system, database technique and C-F model are combined to design knowledge base. The uncertainty problem is solved by using the forward-backward inference control strategy.
针对阀控非对称缸系统，分别推导了液压缸正反向运动时的状态方程，并最终统一成一个非线性模型。
The state equations is deduced for the valve con - trolled asymmetrical cylinder system when the cylinder moving forward and reverse, and one nonlinear model is finally integrated.
无论是什么经验，这好与坏的感受也正反映了用户对使用这些产品及服务，以及有关的产品及服务信息系统是好是坏的致用性真实体验。
Whatever is their experience, it also reflects their feelings or the facts of how good or how bad products and services as well as the related information systems are.
温度闭环校正设计可以减缓失效积累损害的正反馈，同时使系统可以应对突发过温等情况，有效增加了系统可靠性以及使用寿命。
In the meanwhile, with this loop the system can deal with unexpected over temperature situation, and can also increase the system reliability and life effectively.
但由于系统中采用对称阀控制非对称缸而造成整个系统的不匹配，导致系统正反两个方向的动态性能不对称。
But this system is not a matching system, so it lead to the asymmetry of positive and negative dynamic characteristics.
对于仅有正反馈的系统，我们发现其产生可逆性与不可逆性双稳与外部激励作用的方式有着密切的关系。
For the system with only positive feedback, we find there is a kind of relationship between the bistability and the effect of the stimulus.
如果一个系统内部有一个正反馈过程，系统就会不稳定甚至自行崩溃。
A system is unstable and subject to breakdown if it evolves into a positive feedback.
调试结果表明，控制系统可实现电机启动、调速、正反转和电流闭环控制。
The test results show that the control system can realize starting, speed adjustment, clockwise and anti-clockwise running and current closed-loop control functions of motor.
对于相互抑制的正反馈系统，我们发现改变系统中的反馈函数仅仅改变双稳区间和状态的量。
For the mutual inhibition system, it just changes the bistable regime and the state quantity when we change the feedback.
分析了正反馈控制系统的作用。
The effect of positive feedback upon control system is disc…
该系统采用ATMEL公司的89s52单片机发出脉冲来控制直线步进电机的正反转。
And it can realize the positive inversion of linear stepping motor by sending pulses using 89s52 MCU which is produced by company ATMEL as well.
为此，提出了新的控制策略，该控制策略通过检测并消除指令中的零序分量，以破坏无零序电流回路系统的零序电压正反馈条件，消除DVR注入零序电压的不良影响。
So a new control strategy is proposed to detect and suppress the influence of zero sequence component injected by DVR. Simulation results show that the proposed strategy is co…
为此，提出了新的控制策略，该控制策略通过检测并消除指令中的零序分量，以破坏无零序电流回路系统的零序电压正反馈条件，消除DVR注入零序电压的不良影响。
So a new control strategy is proposed to detect and suppress the influence of zero sequence component injected by DVR. Simulation results show that the proposed strategy is co…
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