• 过流保护电路检测电流转化为控制开关

    Over-current protection circuits convert the detecting current into the gate voltage which controls the switch FET.

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  • 分析了改变非线性跨导混频器中的作用

    It is showed that the varying gate voltage will change the nonlinear transconductance to get mixer function.

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  • 器件发光强度有所提高载流子的控制作用理想

    Luminescence intensity increased, but the role of the gate voltage to control current is not ideal.

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  • 串联电阻不仅会使迁移降低会使峰值场效应迁移率所对应小。

    A series resistance not only decreases field-effect mobility but also reduces the gate voltage corresponding to the peak field-effect mobility.

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  • 得到了作用机制转变时分布以及载流子电场分布等数值计算结果

    Some numerical results of the gate voltage, potential distribution, carriers and electrical field distribution in the channel et. al. were obtained.

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  • 分析了反型杂质分布最大沟道电势注入剂量、氧化层厚度等之间关系

    The relations of impurity profile in the inversion layer and the maximum channel potential versus dose, width of SiO_2 and gate bias are analysed.

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  • 采用P栅压自举开关补偿技术可以有效地克服采样管通电阻变化引入非线性失真提高采样精度

    By compensating with P-type bootstrapped switch, this circuit can overcome nonlinear distortion, which is generally introduced by signal-dependent on-resistance, and improve sampling resolution.

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  • 采用个随变化的平均电容公式,并用简单的解析表达式来描述沟道平均迁移率栅压的变化关系。

    The drain current model is simplified by an average capacitance formula and a simple expression of channel average mobility with gate voltage.

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  • 通过直接电流测量方法研究载流子退化栅压退火过程PMOSFET ' s热载流子损伤生长规律

    The growth laws of hot carrier damage of PMOSFET's during the hot carrier degradation and the high field annealing are studied by direct gate current measurement.

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  • 论文分析SOIMOSFET器件结构及不同栅压条件薄膜双SOI MOSFET的器件特性

    Firstly, an analysis of the structure of various SOI MOSFET and their characteristics under conditions of different front and back gate-voltage are made.

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  • 此外通过试验证明离心气机采用列叶可以改善气机性能扩大气机的稳定工作范围

    Furthermore, experiments show that the adoption of double-row cascade diffusers in centrifugal compressors will improve its performance and widen its stable operating range.

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  • 标准滤线便于形成在收集边缘提供磁场梯度要素低。

    Standard grids have advantageously shaped elements to provide high magnetic field and gradient near collecting edges, while causing very low pressure drop.

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  • 通过壁面测量场显示气动探针测量研究不同型叶片组成平面特性

    The performance of rectangular compressor cascades composed of different swept blades was studied by static pressure measurement, flow visualization and probe measurement.

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  • 结果表明掠叶端部损失降低而叶中部损失增加,但相应的端部扩因子有所减小。

    The result shows that the swept-curved cascade has lower endwall loss and higher midspan loss as compared with the straight cascade.

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  • 仪器主要包括常空气脉冲电离信号放大甄别单片机系统

    Emanometer is composed of normal atmosphere air mesh grid pulse ionization chamber, signal magnify and screen unit and MCU system.

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  • 结果表明弯叶片对扩改善能力进口边界层特征影响。

    It was found that the ability of improving diffusion cascade performance was affected by some characteristics of the inlet boundary layer.

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  • 低速环形叶实验台上圆弧处理轮毂相对静子扩旋转频率对叶端壁区流动进行了影响实验探索

    An experiment was made in an annual cascade to explore the unsteady flow mechanism of skewed slot hub treatment in removing flow separation near hub.

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  • 针对某静止环形激励实验工作,相应的进行不同气流攻角和激励频率的非定常粘性计算与流场分析。

    In regard to the excitation experiments, time-Accurate numerical stimulation was carried out to investigate the upstream disturbance frequency effect under different incidence in an annular cascade.

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  • 阐述环形扩利用非定常激励减少分离区损失实验研究成果

    This paper presents the results of the experimental investigation on the effects of internal acoustic excitation on enhancing performance of the annular cascade.

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  • 离心缩机为例,在两个给定设计工况下采用所提出方法求解其最佳叶片型线

    A diffuser cascade of a centrifugal compressor was chosen to be designed with the proposed approach, with its two operating points specified, and its blade profile to be optimized.

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  • 给定不同型式进口边界层两种不同亚音速条件平面扩叶片进行数值模拟

    For several given types of inlet boundary layer, a numerical investigation on flow field of bowed stator vanes under two inlet subsonic Mach Numbers was carried out.

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  • 提出了二阶精度隐式通量单步差分格式用来求解跨器进气道、跨音流

    An implicit flux vector splitting form in one-step with second-order accuracy was proposed for solving the transonic flow fields of air channels and cascades of diffusers.

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  • 本文选取重复气机平均半径处的线,进行平面非定常数值模拟

    In this paper unsteady numerical simulation of planar diffuse cascade is performed in the model profiles that choosing from mid-span of the blade in a repeated compressor.

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  • 为了改善扩气动性能,采用缩性方法对不同向弯曲角度正弯曲叶片气机叶内三维粘性流场进行数值模拟

    The numerical simulation has been carried out to investigate the viscosity flow in the compressor cascades with curved blades of different circumferential bow angles.

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  • 浸塑电焊网、隔离及防风抑尘网、钢筋焊接网等。公司拥有先进大型自动电脑程控焊机,齐全专业检测设备精湛加工工艺

    The company has the advanced large-scale automatic computer program control resistance welding machine, complete specialized check-out facility and exquisite processing craft.

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  • 塑壳断路器尺寸紧凑、受限制出发,提出降对限流同样很大作用

    According to the compact geometry along with limited number of deion plates of MCCB, it was proposed that arc column voltage also play an important role in interrupting process of MCCB.

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  • 采用摸式,适应开关弯钢化生产

    Pressure bending mode of using wind grid, not to bend to the will switch the production of steel.

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  • 本文采用显示测量方法研究扩物理模式

    The flow visualization by means of smoke and measurement of 3 -d flow field are conducted to investigate physical model of the streamwise corner vortexes in a compressor cascade.

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  • 为了改善扩气动性能 ,采用缩性方法不同周向弯曲角度正弯曲叶片气机叶粘性进行数值模拟

    The numerical simulation has been carried out to investigate the three dimensional viscosity flow in the compressor cascades with curved blades of different types of stacking lines.

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  • 为了改善扩气动性能 ,采用缩性方法不同周向弯曲角度正弯曲叶片气机叶粘性进行数值模拟

    The numerical simulation has been carried out to investigate the three dimensional viscosity flow in the compressor cascades with curved blades of different types of stacking lines.

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