The results showed that poly( ethylene glycol) as a phase transfer catalyst can raise the conversion.
指出聚乙二醇作为相转移催化剂可增加转化率。
OBJECTIVE To investigate the effect of adding ethanol in inner organic phase on the properties of poly (d, 1-lactide) microspheres.
目的考察内相乙醇加入量及其他制备因素对聚丙交酯微球性质的影响。
The design method for hybrid waveforms utilizing ran-dom poly-cell code pulse position modulation (PPM) and pulse-to-pulse binary sequences phase modulation (PM) is introduced in this paper.
该文提出了一种利用随机多元码脉位调制(PPM)和脉间伪随机或随机二元序列相位调制(PM)相结合的混合波形设计方法。
In this paper, the nonlinear magnetization data method is firstly extended from the monophase current system to the poly phase current system, and it is of important significance.
本文成功地将非线性磁参数法的思想从单相电流系统推广到了多相电流系统，对开关磁阻电机的理论研究具有重要的意义。
And we carry on carefully the theoretical research and systematic analysis of channelized receiver with poly - phase filters. in addition, we carry on simulations for channelization processing module.
针对基于多相滤波的数字通道化接收机，进行了仔细的理论研究和系统分析，并在此基础上，对通道化处理部分进行了模拟实现。
In this paper, asymmetric microporous poly (vinylidene fluoride) (PVDF) membranes were prepared by phase-inversion process.
本文采用相转换法制备了聚偏氟乙烯不对称微孔膜。
Under the actual operation lim its of motor voltage and current , a high-efficiency optimum torque control met hod for poly-phase PMSM is proposed.
在电动机实际工作的电压和电流约束条件下，提出了多相永磁电动机的一种最佳转矩控制方法，该方法能够使电动机在给定的控制电流下获得最大的输出转矩。
Poly (N-vinyl carbazole) was modified to prepare azo-PVK by post-azo-coupling reaction with diazo salt as raw material using phase-transfer catalysts.
我们以聚乙烯咔唑为偶合组分，和发色基团对硝基苯重氮盐在相转移催化剂存在下，采用后重氮偶合方法，制备出偶氮化聚乙烯咔唑。
The amphiphilic polymer was blended with the poly(vinylidene fluoride)(PVDF) and prepared membranes by phase inversion method.
将这种氟硅聚合物涂于载玻片上成膜，用各种烷烃测试液对其进行接触角测定。
A design method and structural implementation of wideband digital channelized receiver based on poly-phase filters is introduced.
针对这一问题，首先分析了复信号多相滤波器无盲区算法及其数学模型，实现信号的全概率捕获。
A design method and structural implementation of wideband digital channelized receiver based on poly-phase filters is introduced.
针对这一问题，首先分析了复信号多相滤波器无盲区算法及其数学模型，实现信号的全概率捕获。
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