Generalized Open-loop Response Control of H_2/N_2 Ratio of Synthetic Ammonia;
合成氨氢氮比的广义开环响应控制
The open-loop step driving theory and method of AC servo motor were studied.
研究了交流伺服电机开环步进运行的原理与具体实现方法,提出了一种PWM死区开环补偿方法,提高了步进状态下的电流幅值控制精度和步距均匀性。
In combination with open-loop and outer-loop power control,the inner-loop power control under some conditions such as different channel environments and different control parameters has been simulated.
针对TD-SCDMA系统的特点,基于其系统中内环功率控制的方法,提出了一种基于线性预测参数的内环功率控制算法,结合开环、外环功率控制,对不同信道条件、不同控制输入参数的内环功率控制进行了仿真,结果表明,该算法可以适当补偿路径损耗和慢衰落,对系统性能的提高有一定的益处。
The techniques for aromatics saturation and ring-opening of cycloalkanes related to hydropyrolysis of aromatics into steamcracker feeds were reviewed and the feasibility of comprehensive utilization of surplus aromatics by this route was outlined.
分析了未来芳烃可能过剩的原因,综述了芳烃催化加氢裂解制备乙烯裂解原料相关的芳烃饱和技术以及环烷烃开环技术,指出利用该途径实现综合利用过剩芳烃的可行性。
The effect of methanol, formic acid and aqueous ammonia as nucleophiles on the ring cleavage of 1 was investigated.
8%文献值), 首次采用低碳液态醇实现 1 的开环反应, 产物为 FOX-7。
The overall yield of nitration and ring cleavage was 19.
开环试剂为甲酸时,最优条件下两步反应(收率分别为20。
Its hydrogenation activity in aromatics saturation and ring opening activity were investigated.
芳烃加氢饱和及开环反应是一种提高柴油十六烷值的有效途径。
In this method,the basic entities in a drawing are classified into open loop entities and closed loop entities,the line style can be identified automatically,and the width value of the line can be changed easily.
该方法将工程图形中的图线分成开环和闭环两种,并自动识别图线类型,智能调整图线宽度,避免了手工调整过程中存在的问题,提高了效率。
This paper introduces high-speed DSP controller TM320F243 to modulate space vector pulse width with open loop control scheme, eventually successfully implementing the accurate speed and position control of the servo system.
空间矢量脉宽调制(SVPWM)技术是一种新型的脉宽调制技术,在异步电机和同步电机的控制应用场合中,已成为用于控制三相电压源逆变器非常流行的PWM技术,本文采用高速度的DSP控制器TMS320F243对空间矢量脉宽调制(SVPWM)进行开环控制,成功实现了对伺服系统的转速和位置的精确控制。
This paper sorts tracker controller methodologies in utilization of solar energy into close loop, open loop, and hybrid.
对太阳能利用中的开环、闭环和混合控制跟踪控制方式的特点进行了分析。
Activation of calix [6] arene in the ring-opening polymerization of ε-caprolactone catalyzed by rare earth aryloxide catalysts in low temperature.;
杯[6]芳烃在芳氧基稀土(镧、钕)催化ε-己内酯低温开环聚合中的活化作用
Effect of initiators on enzyme-catalyzed ring-opening polymerization of ε-caprolactone;
引发剂对酶促开环聚合ε-己内酯的影响
Viscosity model and its application for ring-opening polymerization of cyclic siloxane in presence of water;
有水条件下环硅氧烷开环聚合黏度模型及应用
Potassium maleate-containing ionomers were prepared by ring-opening reaction of epoxidized styrene-butadiene-styrene block copolymer(SBS).
用环氧化(苯乙烯-丁二烯-苯乙烯)嵌段共聚物(SBS)开环反应合成了含顺丁烯二酸钾基的SBS离聚体,考察了离子基团不同含量对含顺丁烯二酸钾基的SBS离聚体力学性能的影响,研究了离聚体/聚丙烯(PP)共混物的力学性能和耐溶剂性能,以及离聚体对氯醇橡胶(CHR)/SBS共混物的增容效果。
Epoxidized styrene-butadiene-styrene triblock copolymer(ESBS) can react with potassium hydrogen maleate by ring-opening reaction in the presence of phase transfer catalyst and ring-opening catalyst.
利用环氧化苯乙烯-丁二烯-苯乙烯嵌段共聚物(ESBS)的环氧基与顺丁烯二酸氢钾(HKM)在相转移催化剂和开环催化剂存在的条件下开环反应制得钾离聚体。
Sodium sulfonated SBS ionomer was made from epoxidized styrene-butadienestyrene triblock copolymer(ESBS) and NaHSO_3 by ring-opening reaction in the presence of phase transfer catalyst,ring-opening catalyst and pH value regulator.
结果表明,ESBS开环反应制备磺酸钠离聚体的最佳条件为:ESBS在甲苯中的质量浓度为12 g/100 mL;n(NaHSO3)/n(Epoxy)=1。