The set梪p of mathematical model of landing gear movement mechanism, using of universal modular mechanism model, adopting of computer technique realize the integration of much information, such as position of landing gear supporter, length of rocker arm, position and stroke of gear up/down actuating cylinder, size of wheel, and organically combines the environment and process of system movement, realizing the simulation analyses of limit position and driving factor of each component in movement, and synchronization, smoothness and interference between moving components.
通过建立起落架运动机构的数学模型，采用模块化通用机构模型，运用计算机技术实现对起落架支座的位置、摇臂长度、收放作动筒接头的位置及行程、机轮大小等信息的集成，并将系统运动环境和运动过程有机地结合在一起，实现各部件在运动过程中的极限位置，传动系数，运动构件之间协调性、平滑性、干涉情况等的仿真分析。
The principle of traditional active power factor correction are introduced, the paper anylyses the current impact and the ripple noise problems owing to the diode reverse recovery abo and ut PFC main circuit which is in practical applications. A single-phase Boost power factor corrector with centrally tapped inductor is designed. Using the average current model, UC3854 controls the state of the switching transistor in the circuit by outputting a series of PWM signals, By this mean, it readjusts input current and output voltage to synchronization, thus fulfilling power factor Correction.
论文介绍了传统有源功率因数校正的工作原理，分析了其主电路在应用中因二极管反向恢复产生的电流冲击与纹波噪声等问题，设计了一种带中心抽头电感的单相Boost高功率因数校正器，该电路采用平均电流模型UC3854，它通过脉宽调制输出的一连串脉冲信号来控制电路中开关晶体管的导通与截止，从而将输入电流与输出电压的相位重新调整到同相状态，最终达到功率因数校正的目的。
The principle oftraditional active power factor correction are introduced, the paper anylyses the current impact and the ripple noise problemsowing to the diode reverse recovery abo and ut PFC main circuitwhich is in practical applications. A single-phase Boost powerfactor corrector with centrally tapped inductor is designed. Usingthe average current model, UC3854 controls the state of theswitching transistor in the circuit by outputting a series of PWM signals, By this mean, it readjusts inputcurrent and output voltage to synchronization, thus fulfillingpower factor Correction.
论文介绍了传统有源功率因数校正的工作原理，分析了其主电路在应用中因二极管反向恢复产生的电流冲击与纹波噪声等问题，设计了一种带中心抽头电感的单相Boost高功率因数校正器，该电路采用平均电流模型UC3854，它通过脉宽调制输出的一连串脉冲信号来控制电路中开关晶体管的导通与截止，从而将输入电流与输出电压的相位重新调整到同相状态，最终达到功率因数校正的目的。
The research of IF digitalization communication sysytem theoretically indicates that the sample error is essentially a factor of the accumulative carrier error, which simplifies the algorithm of carrier synchronization.
针对中频数字化无线通信系统（中频带通采样软件无线电），从理论上指出抽样误差实质上是载波累积误差的一个因素，从而使得载波同步同步算法大为简化。
Non-deterministic delay in message transmission is the significant factor affecting the accuracy of time synchronization in wireless sensor networks.
消息传输过程中的非确定性延迟是影响无线传感器网络时间同步精度的主要因素。
Of the three factors on customer perceived value, the high and low degree followed by a two-way communication factor, synchronization factor and activity control factor.
研究表明，互动性与顾客感知价值显著相关，而且互动性三个因子对顾客感知价值影响程度的高低依次为双向沟通因子、同步性因子、活动控制因子。
Validation through prototype testing, test results showed that the three-phase locked loop has achieved the synchronization requirements of the PV inverter system and gained a unit power factor for the inverter. Finally, this article used Verilog language to complete the design of FPGA-based three phase-locked loop.
通过样机试验验证，试验结果表明，本文所设计的三相锁相环达到了光伏逆变系统的同步性能要求，实现了逆变器的单位功率因数运行。
In distributed interactive simulation systems, time/space coherence is one of the key factors. The time synchronization accuracy between the computers must be reached to some degree, and the time resolution of computer's clock is the main factor that restricts the time synchronization accuracy.
时空一致性是分布交互式仿真的关键问题，联网仿真的计算机之间的的时间同步必须达到一定的精度，而计算机的时钟分辨率是制约仿真系统时间同步精度的重要因素。
As systems become increasingly parallel, synchronization becomes a limiting factor in their scalability.
随着这些系统变得越来越并行化，同步成为一个影响它们的伸缩性的限制因素。
It is proved by theoretical analysis and logical deduction, that MDSA has better performance than that of CLSH in such fields as channel usage factor, capacity requirement of destination buffers, whereas the algorithm complexity and multimedia synchronization quality are stable.
理论分析和逻辑推导证明，在不增加算法时间复杂度，不降低多媒体同步表现质量的同时，算法提高了系统目的端缓冲区利用率，降低了缓冲区需求及多媒体数据溢出的可能性。
We can see from the result analysis that synchronization current and grid voltage share same frequency but have reversal phase, and unit power factor of wind power generator can be paralleled in grid.
由实验结果分析可知，并网电流与电网电压同频反相，能够实现风电机组单位功率因数并网功能。
The observation method is an important factor affecting data accuracy beside strict dynamic observation on subside and stabilization in synchronization of mild-dust roadbed.
除必须严格按规范要求对高速公路软土路基同步进行沉降和稳定的动态观测外，观测方法也是影响数据准确性的关键因素。
This thesis also analyses the factor of causing synchronization error and unsteadiness. Based on the analysis, the corrective action is implemented in the system, and it improves the performance of the system.
论文在测试的基础上分析了同步误差以及不稳定性产生的原因，根据分析的结果对系统进行了改进，从而提高了系统的稳定性以及同步精度。
The satellite navigation system is actually a time synchronization system. The time reference of the system is the key factor that affects the accurancy of positioning and time keeping of the whole system.
卫星导航系统实际上是一个时间同步系统，系统的时间基准是影响整个系统的定位精度和授时精度的关键因素。
Because of bad transmission condition in underwater channel, synchronization signal processing is a key factor of underwater acoustic communication system.
由于海洋中恶劣传输条件的影响，水声通信系统中同步信号的处理是系统的一个关键问题。
Meanwhile a clear head, low energy factor, temporal lobe synchronization, frontal superiority, quiet degree, composite index, electroencephalogram (EEG) coherence function are also obviously declined.
同时高清醒度、低活力系数、颞同步化、额优势化、安静度、综合指标、脑电相干函数下降也都非常显著。