1、

the results confirm that twice global mode switching and a hopf bifurcation occur with increasing reynolds number re up to which the karman vortex street forms, and the first explanation of this phenomenon with absolute/ convective instability theory is given.

结果证实,随着Re数的增加直至Karman涡街形成,先后发生了两次整体模态的跳跃和一次Hopf分叉,并首次用绝对/对流不稳定性理论解释了这一现象。

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2、

Objective To assess the impact of mode switching algorithms of dual-chamber pacemakers on atrial tachyarrhythmia.

目的:观察双腔起搏器自动模式转换功能在房性心律失常治疗中的应用效果.

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3、

The function of data processing and control of star sensor including the control of booting system, mode switching, star identification, tracking and attitude calculation, and communication between RISC and FPGA are successfully executed on this platform.

在此平台上,成功地实现了星敏感器的数据处理和控制功能,其中包括系统的启动,模式转换控制,星图识别、跟踪和姿态计算,以及与FPGA通讯等。

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4、

analyzing on switching type of super mild hybrid electric vehicle driving mode, drawing up control strategy on only motor mode switching to only engine mode, building dynamical and simulation model in the switching process.

分析了超轻度混合动力汽车驱动工况模式切换类型,制定了纯电动驱动工况切换到发动机工况的控制策略,建立了切换过程的动力学模型和整车仿真模型。

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5、

Methods 31 patients, suffered from sick sinus syndrome and atrial ventricular block with recurrent paroxysmal atrial tachyarrhythmias, were implanted automatic mode switching pacemaker.

方法选择31例病窦、房室阻滞患者,其中伴有阵发性房颤22例、房扑5例、房速4例,分别植入AMS功能起搏器。

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6、

The completion of the submarine three-dimensional topographical map zoom, and multiple roaming mode switching function.

完成海底三维地形绘制的缩放、漫游及多种模式切换功能。

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7、

The reference vector corresponding to basic vector and its role time under linear modulation mode is decided. As well as redundant switches are optimization selected by extreme value method to reduce the switching frequency.

确定了线性调制模式下参考矢量所对应的基本矢量及其作用时间;并提出了极值法对冗余开关状态进行优化选择以降低开关频率。

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8、

A HV EFT generator is developed, which adopts switching mode power supply as HV DC power supply and hydrogen thyratron as switch.

在此基础上研制了一台以开关电源作为高压直流电源、以氢闸流管作为主控开关的脉冲群电源。

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9、

By comparing the technology characteristics of telephone switching, broadcast and television access mode, and packet switching, here propounds a scheme of route switching and allocation of connecting orienting next generation net witch synthesizes the three kinds of services.

文章比较了电话交换、广播电视接入方式和分组交换技术的特点,提出了综合这三种业务的面向连接的NGN网络的路由交换与分配方案。

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10、

Conducted Common-Mode Current Modeling of Switching Circuit Based on Stat Mod

应用Stat Mod对开关电路传导共模电流的建模

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11、

According to the limitation of Ethernet, we studied the technologies such as switching, full-duplex communication mode, VLAN and QoS, which are used to make the industrial Ethernet real-time.

针对商用以太网本身的局限性,结合现有技术,详细讨论了采用交换、全双工通讯模式、虚拟局域网、质量服务(QoS)等技术实现工业以太网实时性的方法和途径。

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12、

A novel proportional-integral ( PI) switching surface was introduced for determining the synchronization performance of system in sliding mode motion.

为了在滑动模态中保证系统的同步性能,采用一种新型的比例积分切换面。

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13、

A concept of adaptive switching manifold for one class of SISO linear systems with non-canonical form is presented in this paper. Meanwhile, the existing and stability conditions for sliding mode, and the invariability of sliding mode motion equation under the adaptive swiching manifold are proved.

本文针对一类非规范型的SISO线性系统,提出了一种新的自适应切换流形概念并对此时滑模的存在、稳定可达条件以及滑模运动方程的不变性进行了证明。

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14、

This paper introduces a kind of DC-DC PWM switching mode power supply driven by VMOS and applied to Program Exchange. The principle and circuit are presented.

介绍了一种用于程控交换机的由VMOS管驱动的DC-DC PWM开关电源的工作原理与电路设计。

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15、

The electromagnetic environment pollution causes harm to electrical and electronic system, it is imperative that weakening and defeating the EMI of switching mode power supply.

严重恶化的电磁环境对电气、电子系统都将造成危害,减弱并消除开关电源的电磁干扰势在必行。

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16、

Optically triggered MOS gated solid state relay is a new switching device, which is composed of an MOS gated thyristor, a phototransistor, an enhanced mode MOSFET and a Zener diode.

光控MOS栅固态继电器是由MOS栅控晶闸管、开关三极管、光电耦合器、增强型MOSFET和齐纳二极管组成的新型开关器件。

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17、
18、

The Characteristics of high order, multi operating mode, running frequency uncertainty rooted in soft-switched circuit system limits the application of fixed time discrete mapping modeling method, which is suitable for hard switching circuit system, to the soft-switched circuit system.

软开关电力电子线路存在的高阶、多模态、工作频率负载依赖等特性限制了适用于硬开关电路的基于固定周期的离散时间映射建模方法在软开关电路中的应用。

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19、

Thermal Simulation of Switching Mode Power Supply Transformer With ANSYS

基于ANSYS的开关电源变压器热模拟研究

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20、

Design of SPWM Switching Mode Bell-Current Supply Applied to Program Exchange

程控交换机SPWM铃流源的设计

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