A comprehensive analysis concerning the calculations of DC Characteristics, microwave and noise parameters of HEMT is given.
本文全面分析计算了HEMT器件的直流特性、微波和噪声参量。
With different barrier width, barrier height, sub-well width, spacer width and n-doping concentration, the changes of DC characteristics of DBRTDs are observed and analyzed.
当势垒厚度、势垒高度、子阱厚度、间隔层厚度、掺杂浓度改变时，可以观察到DBRTD直流特性也随之改变。
SIEMENS fully digital DC speed governing device has the characteristics consisted of single and expedient parameter installing and perfective functions.
西门子数字式直流调速装置具有参数设置简便、功能完善等特点。
Program for plotting the characteristics of a permanent magnet DC motor.
密谋计划的特点永磁直流电动机。
Therefore, it has great significance to research DC icing test methods on disk-shaped suspension insulator for study of DC transmission line characteristics of external insulation.
因此，对盘形悬式绝缘子直流覆冰试验方法进行研究，对直流覆冰输电线路外绝缘特性的研究具有重大的意义。
According to the mathematical model and torque characteristics of permanent magnet brushless DC motor, the reasons that give rise to torque ripple have been analyzed in this paper.
依据永磁无刷直流电动机的数学模型及其转矩特性，分析了转矩脉动产生的多种原因，并介绍了各种有效的控制策。
Methods According to the difference of cells s adhesion, a series of method were set up to generate DC and the biological characteristics were studied by he staining and FACS.
方法：根据细胞的黏附性不同，建立了一整套简便的树突状细胞的体外扩增方法，并利用HE染色和FACS研究了其生物学特征。
The electrochemical corrosion characteristics and resistant performance of pulse plated nickel deposit for uranium substrate is better than DC deposit.
脉冲镍镀层具有较佳的电化学腐蚀特性和对铀基体更好的防腐蚀性能。
Testing and research on visible corona characteristics for high elevation DC equipment.
高海拔直流设备可见电晕特性的试验研究。
Based on the characteristics of DC electric arc furnace the heat transfer and the measures to improve it are introduced.
从直流电弧的特征出发，分析了直流电弧炉的传热及改善直流电弧炉传热的途径。
The outstanding advantages of DC machines arise from the wide variety of operating characteristics which can be obtained by selection of the method of excitation of the field windings.
直流电机的突出优点是通过选择磁场绕组不同的励磁方法，可以获得变化范围很大的运行特性。
The harmonic characteristics of a rectifier with a DC filter inductor or capacitor are analyzed and then relevantlythey are classified into current type and voltage type harmonic source.
分析了直流侧电感和电容滤波的整流器的谐波特性，进而把它们分为电流和电压型谐波源。
This paper introduced the characteristics and parameter selection of DC filter capacitor used in HVDC transmission system.
主要阐述了高压直流输换流站用直流滤波电容器的特点和设计参数的选择。
The classical converter model has been proved to be insufficient in representing the characteristics of the DC side harmonics in HVDC system.
HVDC直流侧谐波计算中经典换流器模型不能完整再现换流器直流侧的谐波某些特性。
According to the specific characteristics, digital DC DC converters are easy to be integrated with other digital systems.
数控DC DC变换器由于其自身的特点，易于与数字系统进行单片集成。
This paper focuses on the theory and measurement of dynamic characteristics of permanent-magnet DC motors.
主要讨论了永磁直流电机的动态特性理论和测量。
The principles and characteristics of electromagnetic adaptability and weak_electric control of DC contactors are presented.
讨论了直流接触器电磁适配及弱电控制的原理、特点。
By employing the DC earthed protection theory, this paper analyzes the characteristics of the converter transformer earth fault and the influence of converter commutation.
在简要介绍直流接地过流保护原理的基础上，分析了换流变阀侧接地故障的故障特征以及换流阀换相过程对故障电流的影响。
AIM: to compare the biological characteristics of cultured mice bone marrow dendritic cell (BM-DC) in cultural media with peritoneum or with growth stimulating factor.
目的：探讨小鼠骨髓树突状细胞体外生物学特性及用自体腹膜培养基代替细胞因子刺激树突状细胞体外生长的可能性。
Typical morphologic characteristics of DC were observed.
电镜观察到典型的DC形态特征。
Thirdly, it analyzes the characteristics of DC and AC grid connections based on a case study of an offshore wind-farm designed and implemented by ABB Company in Germany.
以ABB公司所做的德国某海上风电场的联网案例来对比分析直流联网和交流联网的各自特点。
This paper introduces the application of SIMOREG K 6ra24 series fully digital DC converter in the master winch of blast furnace, describes its configurations, functions and characteristics.
介绍了SIMOREGK6ra24全数字直流调速装置在高炉主卷扬中的应用，说明了其配置、功能及特点。
This paper analyzes the characteristics of the start-up process of the DC PWM speed regulation system, also presents the feasible method of limiting start-up current for the system.
本文分析了直流pwm系统起动过程的特点，并提出了系统中限制起动电流的可行方法。
Features: Low VCE(sat), excellent DC current gain characteristics.
特点：饱和压降低，极好的直流电流增益特性好。
With the two dimensional electron gas model, considering the nonlinear shift of Fermi level with electron gas density, the DC output characteristics is calculated.
考虑费米能级随二维电子气浓度的变化，计算了器件的直流特性。
The computer simulation for the designed circuits by using SPICE program confirm that both circuits have correct logic functions, desired DC transfer characteristics and transient characteristics.
应用SPICE程序对设计电路的计算机模拟表明，两种电路均具有正确的逻辑功能、理想的DC转移特性和瞬态特性。
But there are few theories and methods for the analysis of the transient characteristics of DC line fault.
然而，目前对直流线路故障暂态特性仍缺乏系统、深入的理论研究。
According to the characteristics of naval DC meshy network, a simple and effective short current calculation method is given.
为了解决舰船电力系统主网多电站短路电流的计算，根据其直流网状网络的特点，给出了一种有效的短路电流计算法。
The dynamic response characteristics of DC Boost converter were researched.
研究了直流升压变换器动态响应特性。
The operation and characteristics of the DC DC converter are discussed, and its control and protection circuit is presented. It is verified by experiment.
分析了该变换器的工作原理和特性，简介了变换器的控制和保护电路，并用实验进行了验证。
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