同步的

The results show that injection locking synchronization is realized when injection rate is large enough. In the injection locking regime, similarity index is larger for external modulation than that for direct modulation. If injection rate keeps unchanged, synchronization is little affected by modulation index, but it is affected by modulation frequency. Since outputs of the master laser are antiphase for direct modulation and external modulation, the fluctuations of similarity index with modulation frequency for the two lasers are contrary.

研究结果表明：当注入强度足够大时，系统实现注入锁定同步，外部调制的相似指数大于内部调制；注入强度恒定时，同步品质几乎不受调制指数的影响，而受调制频率的影响；由于内部、外部调制引起主激光器的输出反相，两种调制方式下同步品质随调制频率的变化趋势也相反。

Moreover, the classical Hoare logic is extended as an axiomatic basis of this method. Compared with other existing methods, it pays more attention to the state space other than time properties of hybrid system.

与VDM++中的同步机制相比，不仅吸收了VDM++中两种同步机制的优点，同时也将其两种同步机制化归在统一的框架之下，减轻了用户的负担。

In this paper, a novel synchronization acquisition approach using the early-late gate for FFH/BFSK system is proposed, and it is based on frequency-PN sequence double pattern. Analytical and numerical results show the following advantages: the decision of threshold is more simple and accurate, and it overcomes the unreliableness of one-hop data demodulation, the unreliableness is caused by the not-alignment hop window of transmitter and receiver.

摘要针对FFH/BFSK系统的同步难题，该文提出了一种基于频率和PN序列双图案的早迟门同步捕获方法，理论分析和仿真结果显示，该方法门限的选择更为简单、准确；克服了全跳解调时由于收发窗口未同步引起的解调不可靠性。

An optimizing design method of de-synchronous circuit based on an abstract model called control graph is presented in this paper.

基于解同步电路的抽象模型－控制图，提出了一种解同步电路优化设计方法，优化过程由解同步电路的性能评价函数作为指导，在不影响电路性能的前提下有效地减小电路控制通路的面积。

First, the importance of synchronized sampling based on GPS for power system is introduced. Second. the generalscheme of GPS-synchronized sampling unit developed by the authors is presented. Then, the design scheme of each part ofthe GPS-synchronized sampling unit is presented in detail.

介绍了基于 GPS同步采样在继电保护和自动装置等方面的作用，提出了实现 GPS同步采样的方案，详细给出了基于 GPS同步采样单元的设计方案，并给出了其在故障定位和输电线路参数测量中的应用举例。

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。

This paper has explored improvement and optimization of algorithms whichhave been applied to the media compression, media stream transmission,decryption and media presentation. In order to obtain fine audio-visual effect,measures have been proposed to decrease or eliminate various adverse factorswhich cause the horal variance of audio-video stream.

通过对现有音视频同步算法的比较、分析，本文提出的方案是基于媒体传输双方的同步控制，根据缓冲区的占用情况来检测失步，并将其反馈给发送方和接收方，双方对媒体发送和播放帧率进行相应调整，来保持媒体的同步播放。

Sheet feeding machine of shaftless drives need to demand strictly synchronization between the driving shafts.

无轴单张纸输纸机要求保证各驱动轴之间的运动保持严格的同步，解决输纸机各运动轴速度和相位的同步控制问题，也就是解决多轴运动同步问题。

Synchronizer in automobile is made up of carbon fiber strip, tach and adhesive, which is used at 180 in loog peried. Powerful torsinal strength in synchronizer operation request that the adhesive is heat-resisted structural.

汽车同步器由圆锥环与制动带粘接组成，要求可在180℃环境下长期使用，同步器在运转时存在强大的圆锥同步扭矩以及苛刻的温度环境均要求用于粘接制动带的胶粘剂必须是耐高温结构胶粘剂。

First,the theory of the IEEE1588(Precision clock synchronization protocol)is expounded,and then a study of the real synchronization system is discussed.

同时根据对实际同步系统测试结果的分析，提出了同步系统中影响同步精度的几个主要因素。采用系统晶振补偿和O ffsetTime滤波的方法对系统进行了完善，并进一步进行了测试。

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。