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The gap of our country in this field is filled in. 5. The performance fade of general room-temperature bipolar junction transistor at low temperature is simulated, for instance, the current gain, the cut-off frequency, the base resistance and the base-to-emitter capacitance.

以PISCES—2B中的模拟实例——二极管为例，阐述了所开发的半导体器件模拟软件包SE-PISCES的性能，可进行50K-350K下的稳态分析、瞬态分析和交流小信号分析。

Simulation shows for equipment, such as simulated CRT monitors, signals are sent directly to the corresponding processing circuit, Driving Control kinescope generated images.

对于模拟显示设备，如模拟CRT 显示器，信号被直接送到相应的处理电路，驱动控制显像管生成图像。

At the same time, they simulated the working characteristics of reflecting klystron according these voltage and currents by software.

同时将测量所得的实验值输入计算机模拟程序，动态绘制出当前状态下的速调管工作图像。

At the same time, we simulated the working characteristics of reflecting klystron according these voltage and currents by software.

同时将测量所得的实验值输入计算机模拟程序，动态绘制出当前状态下的速调管工作图像。

The temperature change of knitting needle s during quenching in the mesh-belt furnace was simulated using the ANSYS software.

针对织针网带炉淬火，利用有限元分析软件ANSYS，对织针加热过程中的温度变化进行了模拟。

A process of detaching of a warm ring from the Kuroshio is simulated successfully.

模拟出了黑潮分离流环的形成和脱离过程。

In order to decrease the measuring error of signal processing in laser Doppler velocimeter, frequency spectrum correction methods for lacer Doppler signal were proposed. Basic principles of energy centrobaric correction, ratio correction and phase difference correction were expounded. The three methods processing ideal sinusoidal signals was simulated with different signal frequencies, and so was the ratio method processing sinusoidal signals with different noises and signal to noise ratios.

在激光多普勒测速仪中，为了减小由信号处理算法带来的测量误差，提出运用频谱校正算法对多普勒信号的频谱进行校正，详细阐述了能量重心法、比值法和相位差法3种离散频谱校正算法的基本原理，运用这3种算法对理想正弦信号进行仿真，并运用比值法对信号施加不同频率和信噪比的噪音下的正弦信号和实测的多普勒信号进行仿真及实验研究。

Results showed that casein could be completely removed of by adjusting pH 4.6 and centrifuging at 1100g.β-lactoglobulin was absorbed by the cation-exchange resin eluented by phosphate buffer. Through limiting the quantity of acid whey, the purity concentration percent of immunoglobulin was above 80% determined by SDS-PAGE. The ratio of activity of immunoglobulin losing decreased in simulated pepsin and the residual immunoglobulin content percentage was about 80% in 60 minutes.

实验结果表明：调节脱脂牛初乳pH=4.6采用1100g低速离心即可达到完全去除酪蛋白的良好效果；利用含有磷酸根基团的缓冲液处理阳离子树脂柱会专一吸附酸性乳清中的β—乳球蛋白，达到分离乳清中免疫球蛋白与β—乳球蛋白的良好效果，控制乳清样品处理量可使免疫球蛋白纯度达到80%以上；微胶囊化的免疫球蛋白可以延缓胃液对免疫球蛋白的消化分解，减缓免疫球蛋白活性损失速率，在60分钟内仍可保留80%的活性。

According to sensitivity analysis and adjustment of model parameters, the hydrological and water quality process of the Lake Dianchi basin were simulated using observed and statistical data in 1988 and 1989 for each river.

介绍HSPF模型的主要结构和功能，通过对该模型参数的灵敏度分析和参数调整，利用滇池流域各入湖河流1988，1989年的水质监测数据及相关统计资料，分别对该流域的水文、水质过程进行了模拟。

Laminar fluid flow and heat transfer in twisted elliptic tube s is simulated by the dual-velocity algorithm.

计算了层流状态下扭曲椭圆管内的流动与换热情况。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。