查询词典 synchronous

Experimental synchronous rotor internal mixer and two kinds of 55L synchronous rotor internal mixer, consulted a number of published articles at home and abroad, then, for the first time, formed four kinds of physical model and the corresponding mathematical model which related to the mixed stock between the mixing chamber side and the top of the rotor wing, to the mixed stock between the two rotors and to the mixed stock at the various temperatures of the mixing chamber. And from the character of model, the author gave the relevant analytic solutions and finite element approximation arithmetic solutions during the experimental process of the synchronous rotor internal mixer.

因此，本文作者在XM—1.7实验用同步转子密炼机和两种50L同步转子密炼机上进行了大量的实验，并参阅国内外已发表的文献和资料，首次建立了同步转子密炼机混炼过程中，胶料在转子棱峰与密炼室壁之间、胶料在两同步转子之间和密炼室中混炼胶温度变化的四种物理模型及其相应的数学模型，并根据所建模型的特点，分别给出了相应的解析解或有限元数值解。

The invention relates to an external synchronous TD-SCDMA cover network system, which comprises a main coverer and at least one driven coverer forming the cover network system; said main coverer, via synchronizing the TD-SCDMA descending signal of descending chain, outputs descending-ascending switch control signal to the main coverer, to obtain frame synchronization; sending the synchronous instruct signal to the driven coverer; obtaining the frame synchronization at the driven coverer, via external synchronous instruction signal, to complete the normal ascending-descending time slit switch.

本发明外同步TD-SCDMA覆盖网络系统，包括组成覆盖网络系统的主覆盖端和至少一个从覆盖端，所述主覆盖端通过对下行链路中的TD-SCDMA下行信号进行同步处理，向主覆盖端输出上下行切换控制信号，获得帧同步；并将同步指示信号发送至从覆盖端，从覆盖端根据外同步指示信号进一步获得帧同步，从而完成整个覆盖网络系统的正常上下行时隙切换。

To accelerate the widespread of Synchronous Chip Seal and improve the operation quality of Synchronous Chipsealer, key techniques which influence the operation quality is studied detailedly, including the control of distributing quality, the dynamics characteristics of hydraulic system and the spray characteristics of asphalt nozzle of Synchronous Chipsealer.1 The factors which influence Synchronous Chip Seal quality are studied. Fiducial probability of simultaneous distribution density is advised to be used in evaluating the distribution bias and standard deviation of asphalt and aggregates simultaneously, which is more advanced than the single index evaluation method used before.2 The volume efficiency formula of asphalt pump is revised after analyzing the data of volume efficiency with mathematical statistics, which is helpful to match the asphalt spray system and control the flow out of asphalt pump accurately. With equation deduction and experiment, dynamic of hydraulic system used in Synchronous Chipsealer is studied, which lay the theory foundation on improving the stability and efficiency from design and controlling.4 Simulation on hydraulic system used in Synchronous Chipsealer is done with AMESim; the results indicate that multi-circle parallel connected hydraulic system with constant pressure power is better than that with load-sensing pressure power at present, because the latter will oscillate when the multi circles work at the same time. This conclusion has been proved during the debug of Synchronous Chipsealer.5 Asphalt nozzle characteristics, such as flat jet shape, flow distribution, are studied with experiment, the results indicate that cross quality of asphalt distributing is not increased linearly follow the increase of fan overlap level, the best point usually exists between two whole overlap level, asphalt distributing quality is better than±4% at the 2.5 overlap level, meets the superior specified in standard; The distribution quality of Synchronous Chipsealer can be increased by spray asphalt of different flow rang with nozzle of different diameter

为了加快同步碎石封层技术的推广，提高同步碎石封层设备的作业质量，本文对同步碎石封层设备作业质量的影响因素与控制方法、液压系统的动力学特性和沥青喷嘴的喷洒特性等关键技术进行了深入细致的研究：1研究了影响同步碎石封层作业质量的因素，提出了采用联合密度分布置信概率对同步碎石封层中沥青洒布量和碎石撒布量的系统偏差和标准差指标进行综合评价的方法，克服了传统评价方法只能对单一指标进行评价的缺陷；2采用数理统计的方法，研究了沥青泵的容积效率特性，修正了沥青泵容积效率公式，为沥青喷洒系统的匹配和沥青泵出口流量的精确控制提供了依据；采用数理方程推导与试验相结合的方法，研究了同步碎石封层设备液压系统的动力学特性，为从设计和控制的角度提高同步碎石封层设备液压系统的稳定性和效率奠定了理论基础；3运用AMESim软件对采用负载敏感控制和恒压控制的两种同步碎石封层设备液压系统进行仿真，结果表明：负载敏感控制的并联液压系统在多回路同时工作时，由于液压泵排量控制参考压力不稳定，容易引发液压系统振荡，恒压控制的并联液压系统是目前技术条件下比较理想的同步碎石封层设备工作装置驱动方案；该结论亦通过同步碎石封层设备装机试验得到了验证。4采用试验的方法对沥青喷嘴的喷洒特性进行了研究，结果表明：沥青洒布的横向精度并不是随着喷洒扇面重叠度的增加线性增加，其最高点通常出现在二个重叠度之间的"半重叠位置"，"2.5重叠"洒布时，沥青的横向洒布精度≤±4%，可以达到国家相关标准中的优级标准；同步碎石封层设备还可以根据不同洒布量情况下的流量需求，采用不同通径的喷嘴进行喷洒，提高沥青洒布精度。

The topological structure of a new type of static synchronous compensator, which consists of traditional 12-pulse converter and a cascaded H-bridge, is presented. The purpose of designing such a topological structure, which integrates the concepts of multi-level, soft-switching and re-injection, is to reduce the voltage harmonic content at AC side and to solve dynamic voltage balance among the switches connected in series.

介绍一种新型H桥级联静止同步补偿器(static synchronous compensator，STATCOM)的拓扑结构，它由传统的12脉冲变换器和一个H桥链构成，结合了多电平、软开关和注入技术，降低了交流侧电压谐波含量，解决了串联开关动态电压平衡的问题。

Computer simulation result proves that A. C. parameters measurement of static signals using Harr wavelet transform could get the accurate result by the ideal sampling situation, i. e. the synchronous error is zero. Compare with synchronous and quasi-synchronous sampling algorithm, A. C. parameters measurement of transient signals using Harr wavelet transform could get more accurate result.

对谐波相位测量方法进行了误差分析，通过仿真证明，在稳态信号情况下，如果采样过程不存在同步偏差，利用Harr小波变换的方法可以对交流电量参数进行准确的测量；在暂态信号情况下，该方法与同步、准同步算法相比，可以达到很高的测量准确度。

Steady-state harmonics and transient performance of the conventional static synchronous compensator controllers are first investigated. Based on the sensitivity analysis of the STATCOM output power, it is found that the voltage magnitude is more effective than the phase angle in controlling the reactive power output. An analytical approach to harmonic analysis of a STATCOM based on Bessel functions of the first kind is described.

本博士论文首先分析传统静态同步补偿器(Static Synchronous Compensator， STATCOM)控制器的优缺点，利用对静态同步补偿器输出功率的灵敏度分析，得知要控制补偿器输出虚功大小时，直接对静态同步补偿器输出电压大小作控制，会比对相角作控制来得有效。

This allows the user to control a Sigma-5 amplifier with an EtherCAT master in a variety of different modes (cyclic synchronous position, cyclic synchronous velocity, cyclic synchronous torque, interpolated position, profile position, profile velocity, or profile torque) and system architectures (line, star, tree, or daisy chain).

用户可以利用EtherCAT设备以多种不同的模式（同步循环位置，同步循环速率，同步循环转矩，替换位置，剖面位置，速度分布剖面图，扭矩剖面图）和系统结构（直线状，星状，网状以及链状）控制Sigma-5伺服放大器。

With the increase of bridge reconstruction, synchronous lifting of bridge becomes more and more popular.

multi-cylinder synchronous ；随着桥梁改造工程的增多，桥梁同步顶升变得越来越普遍。

Synchronous Converter ;Generator; Synchronous Generator;Motor;Motor Generator; Synchronous Motor;Hand Generator;None

同步转换器；发电机；同步发电机；电动机；电动机发电机；同步电动机；手摇发电机；无

By using synchronous rectifier, a higher efficiency low-voltage output DC/DC converter module can be achieved. This paper presents a kind of synchronous rectification DC/DC converter, which includes active clamp circuit, insulating transformer, and current double synchronous rectifier.

为提高低输出电压的DC/DC变换器的效率，提出了一种倍流同步整流有源箝位DC/DC变换器，电路拓扑主要包括有源箝位电路、隔离变压器和倍流同步整流电路。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！