查询词典 flow control

The sketch and specific design approaches of mid-block street crossing are generalized and three management and control modes are discussed. Based on extensive investigation and survey, the paper analysis the arriving laws in different land-use condition and the traffic characteristics of different crossing entities under different control modes. The initial characteristic, the speed and dispersion of the mobile flow are also intensive studied, as well as the effect of mid-block street crossing. Establish the linear planning models on the coordination between the signals of mid-block crossing and intersection. Finally the evaluation of the model output is carried out from time saving results, safety, economic results and social results. Set the example of Taiping north road in Nanjing, surveying the traffic situation, applying the method of signal coordination between the mid-block crossings and intersection to realize the south-to-north signal coordination design. The evaluation results show the coordination plan are more superior to the current signal plan.

本文首先阐述了行人过街物理设施的概略设计和详细设计方法，讨论了路段人行横道的三种交通管制方式的设计方法和实用条件；其次，在充分的实际调查基础上，详细分析了不同用地性质条件下的过街需求的到达特性和不同交通管制下不同过街实体的交通特性，分析了进入路段的机动车初始流特性，并对机动车在路段中的车速特征、离散性以及路段信号控制人行横道对机动车流的影响进行了研究；然后，根据以上分析的过街交通和机动车交通的交通特性，建立了路段行人过街信号与交叉口信号协调控制的线性规划模型；最后，对模型输出的协调控制方案进行了效益评价分析，从时间效益、安全性、经济效益和社会效益四个方面，定量和定性相结合地对其实施效果予以评价；以南京市太平北路路段为例，根据现状交通状况，应用行人过街信号与交叉口信号协调控制的方法，对该路段由南向北方向进行单向协调控制设计，并进行方案效益分析评价，提出了优于现状控制方案的人行过街信号与交叉口信号协调控制方案。

In this paper, model of vehicle with double axes is used to study the vibrations of vehicle-bridge dynamic interaction system. The active control law based on linear optimal control theory is designed, In which the transient power flow and displacement at mid-span of bridge are accounted separately.

本文采用能更加逼近真实车辆的双轴车辆模型，应用线性最优控制理论，采用可有效控制一阶振型的双臂弯矩控制系统，分别以双轴车辆输入桥梁的瞬时功率流和桥梁的跨中位移振动响应为目标函数来设计控制律。

In order to put up the functions of simulation technology., such as testing the control system and optimizing the technologic flow and improving the ability of operator and etc, MIMIC industry, simulation software supplied by Mynah technology is introduced based on the real project application cooperating with DeltaV control system.

为了体现仿真技术在当前化工工业生产过程中所起到的控制系统检测、工艺流程优化、人员能力培养等作用，结合美国Mynah公司推出的MIMIC工业仿真软件，基于DeltaV系统在某德国化工公司的实际项目应用，根据项目中的应用状况，阐述整套仿真系统的功能作用。

Intelligent traffic control device or can be added to oil-containing gas, or moisture under the automatic adjustment of flow device, or partially installed on each device or wireless underground electric control valve.

智能流量控制设备或者增添了可根据原油含气量或含水量自动调节流量的装置，或者在每个设备部分安装电动的或无线的井下控制阀。

Based on the geometrical optics, the thesis first analyzes the basic principles of out-of-focus, summarizes the basic flow of automatic focusing, points out that focusing evaluation function and focusing control strategy are two basic technologies in automatic focusing of image method. The thesis lists most of focusing evaluation functions and explains how to implement different control strategies.

本文首先用几何光学理论分析了离焦产生的基本原理，深入研究了图像法自动调焦的关键技术，指出调焦评价函数和调焦控制策略的选取是图像法自动调焦的两项核心技术，并按类别介绍了已有的各种调焦评价函数、控制策略实现方法。

MethodsAccording to the proper order of time, 88 patients with CCCI was selected, which was divided randomly into the therapy group and the control group. The therapy group was treated with puerarin injection 400 mg iv gtt, qd, and the control group was treated with Danshen injection. The period of treatment was 14 days. Before and after the treatment, to observe Hemorheliogy、 the velocity peak of blood flow and resistent index of middle cerebral artery and vertebral artery through transcranial Doppler, and assess the ability of clinical effectiveness.

选择 CCCI 病人 88 例，按时间顺序随机分为治疗组和观察组，治疗组采用葛根素注射液 400 mg 静脉输注；对照组复方丹参注射液治疗，两组共观察 14 d，且于治疗前后作 TCD 测大脑中动脉及椎动脉高峰血流速度、阻力指数及血液流变学的检测，对治疗效果进行统计学分析。

On the research of reciprocating pump,if the linear motor-driven piston or reciprocating plunger being applied,the structure of reciprocating pump will be greatly simplified.And the movement of the piston can be changed so that the flow of pump is constant;Meanwhile easily to achieve automatic control,and when using the intelligent control system,easily to implement automated production.

在往复泵的研究中，如果采用直线电机直接驱动做往复运动的活塞或柱塞，那么往复泵的结构将大为简化，泵总体结构紧凑，系统效率高；并且可以通过改变活塞的运动规律，使泵的流量恒定；同时便于实现自动化控制，若采用智能化控制系统易于实现自动化生产。

The experimental studies were performed in the laboratory of Thermo King. Based on refrigerant flow distribution between the two evaporators, a new control method of on/off ratio of air-condition was put forward and compared with evaporator pressure regulator valves control method.

在深圳大冷王冷藏车实验室进行了制冷系统的实验研究，针对两侧蒸发器流量分配以及压缩机吸气压力波动的问题，提出了一种控制空调开停时间比的新控制方法，并与传统的蒸发压力调节阀控制方法进行了比较。

This control of water flow on the performance for the control of water through the evaporator pressure drop in the standard conditions, the cold water for the evaporator pressure drop is set for backwater 49 kPa (0.5 kg / cm).

这种冷水流量的控制就表现为控制水通过蒸发器的压力降在标准工况下，蒸发器上冷水供回水压降调定为49 kPa (0.5 kg／cm )。

At present, the main product has the fire sprinklers series, wet alarm valve, deluge valve series, the flow indicator series, water spray, water curtain nozzle series, the fire control valves series, PS20 ~ PS80 fire water cannons, PP24 ~ PP64 Fire bubble gun, PSKD30 ~ PSKD60 electric control fire water cannons, PHY Series storage pressure air bubble mixing device, such as the proportion of products in the domestic market by the user's consistent high praise, has great competitive advantage.

目前主要的消防产品有洒水喷头系列、湿式报警阀系列、雨淋阀系列、水流指示器系列、水雾、水幕喷头系列、消防控制阀门系列、PS20～PS80消防水炮、PP24～PP64消防泡沫炮、PSKD30～PSKD60电控消防水炮、PHY系列贮压式空气泡沫比例混合装置等产品在国内市场受到用户的一致好评，具有很大的竞争优势。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。