1、

Due to U-shaped line operators implementing the rotation system, with multi-skilled, and in close contact, it makes U-shaped line more flexible in operators assignment, product switching and cycle time adjustment, more able to respond quickly to changes in external demand.

由于U型线上员工实行轮岗制,具备多技能,且密切联系,使得U型线在人员配置、产品切换与节拍调整等方面更加具有柔性,能快速响应外部需求的变化。

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2、

The decreasing time of free-wheeling current is relative to duty cycle in the exiting FB-ZVZCS-PWM soft-switching inverter arc welding power supply with the block capacitor, and it is hard to achieve zero current switching ( ZCS) for lagging leg with low duty cycle.

现有FB-ZVZCS-PWM软开关弧焊逆变电源采用阻断电容衰减原边环流电流所需的时间与占空比有关,占空比很小(电源输出电压很低)时滞后臂难以实现零电流开关。

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3、

The Study on Switching Power Amplifier with One Cycle Control

单周控制开关功率放大器的研究

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4、

An Improved Switching Power Amplifier with One Cycle Control

一种改进的单周控制的开关功率放大器

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5、

According to the phase trajectory of along-track drift, the switching function with the oblique lines was designed in order to converge the initial errors, and the limit cycle was analyzed correspondingly.

分析了构形沿航迹漂移的相轨迹,针对单开关门限控制律不能对初始误差收敛的问题,设计了倾斜开关曲线控制,并分析了相应的极限环参数。

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6、

And a longer-term cycle of heating and cooling known as the Pacific Decadal Oscillation may be switching from a cooling phase to a warming phase.

还有一种被称为“太平洋十年涛动”(Pacific decadal oscillation)、周期更长的海水冷热更替现象,现在可能正从寒冷期转入温暖期。

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7、

The simulated applications are in driving threshold, state overturn, light transmission rate, the switching and memory behavior of the FLCD for different drive voltage ( including amplitude, pulse wide and duty cycle) and sampling parameters.

通过引入多种激励源,控制激励信号的幅值、脉宽、占空比和取样参数,对FLCD的驱动阈值、状态翻转、透射率、响应时间和记忆行为进行了实时仿真。

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8、

To reduce the switching losses of IGBTs in PWM rectifier, a third order square wave is added to the phase voltage control signal on the basis of the Improved Period Average Model. This new control algorithm leads to no switching in about 1/ 3 cycle.

为降低PWM整流器的开关频率,本文在整流器的改进周期平均模型基础上,在相电压控制信号中叠加三次方波信号,使得整流器中的开关管有1/3时间不动作。

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9、

Half cycle modulation control strategy is adopted to reduce the switching losses and conduction losses.

采用电流半周期调制方式,减小了功率管的开关损耗和导通损耗。

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10、

The above-mentioned method is applicable to any switched-capacitor network with arbitrary switching phase or duty cycle.

本方法适用于具有任意开关周期的任何一个开关电容网络的计算。

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11、

realization of multi-way switching device used in shortcircuit and heat cycle experiment of catenary

接触网短路热循环实验多路温度测量开关切换装置

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12、

a variable valve timing ( vvt) mechanism of switching cam profile was developed for the small-medium displacement motorcycle engines. the approach to optimally match the vvt system with thermodynamic cycle process of the engines based on cycle simulation was explored.

针对国内中小排量摩托车发动机的结构特点,研制了切换凸轮型线VVT系统,探讨了基于循环模拟进行VVT系统与发动机热力循环过程合理匹配的途径。

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13、

In returnable system there are kinds of switch styles on positive and negative two group rectification bridger, the higher reliability is no cycle current switching, writer designed the logical no cycle current returnable system.

而可逆系统中正、反两组整流桥的工作切换方式有几种,可靠性较高的是无环流切换,笔者设计了逻辑无环流可逆系统。

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14、
15、

The influences of different switching mode of PWM are discussed. Then a practical method, "three-state algorithm of invariable duty cycle under forced output mode" is brought out to eliminate the commutation dead band generated by switching among the output interfaces of PWM waveform.

详细分析了PWM脉冲的不同切换方式对电机换相控制的影响,提出消除换相死区的具体算法&强迫输出方式下的2001年上海大学博士学位论文三状态恒定占空比算法。

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16、

Cycle Analysis and Simulation of Motorcycle Engine with Switching Cam Profile VVT System

摩托车可变配气正时发动机的循环仿真与分析

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