The concept and some applications about umpolung were expounded, and some new methods about the application of the umpolung were given.
极性转换方法是一种重要的有机合成新方法 ,对极性转换的概念和应用作了论述 ,并对一些极性转换的新技术作了简
The organic compounds unable to be synthesized under normal reaction can be fulfilled by means of umpolung.
在有机合成中一些不能用常规反应合成的有机化合物可以通过极性转换的方式来完成 。
DFRM polarity conversion based on genetic algorithm
基于遗传算法的DFRM极性转换
By combining the power estimating model and the polarity conversion of tabular technique with the whole annealing genetic algorithm(WAGA),this paper proposes a new algorithm to search the best pola.
在此基础上,将基于列表技术的极性转换算法和整体退火遗传算法相结合,提出了一种针对大规模XNOR/OR电路的低功耗最佳极性搜索算法。
A new algorithm based on XNOR/OR logic for searching the best polarity for low power dissipation has been proposed,by investigating the XNOR/OR logical expression,the propagation algorithm of signal probability and the polarity conversion algorithm.
本文通过对XNOR/OR逻辑表达式、信号概率传递算法和极性转换算法的研究,提出了一种基于XNOR/OR逻辑的低功耗最佳极性搜索算法。
The Proper Application of Umpolung in Organic Synthesis;
浅议有机合成中极性转换的合理运用
Nonpolar, standard, used in polarity reverse and change circuits.
无极性产品，标准品，用于极性翻转或极性变换的电路中。
But occasionally this dipole field switches polarity north and south reverses, and this process seems to take a few thousand years.
但是偶尔这偶极场会转换极性——南极和北极倒转，这个过程似乎需要几千年的时间。
Used in circuits what polarity is reversed, such as signal coupling,etc.
适用于信号偶合等极性需反转或变换的电路。
Applications： Low Voltage, High Frequency Inverters, and Polarity Protection Applications.
主要用途：低电压整流，高频转换开关和极性保护。
Synthesis and Properties of Light-converting Materials for Light-emitting Diodes (LEDs);
LEDs（发光二极管）光转换材料的合成与性能
SAge-Related and Gender Differences: Influence of Positive Emotions on Task Switching;
积极情绪影响任务转换的性别和发展特点
Hardware design and analysis for converter s double-polarity output;
D/A转换器双极性输出的硬件设计与分析
TMDS Transition Minimized Differential Signaling
转换极低损耗微分信号
band switching diode
波段转换开关二极管
conversion quantum efficiency of photocathode
光阴极的量子转换效率
resolution of polar to cartesian
极坐标-直角坐标转换
Design of DC High-Voltage Generator with Polarity Being Reversal for Convertor Transformer Test;
换流变压器试验研究用极性可反转直流高压发生器的研制
All-Optical Wavelength Converter Based on Periodically Poled MgO:LiNbO_3;
基于周期性极化掺镁铌酸锂的全光波长转换器研究
Study on Electric Field Distribution of ±800 kV Converting Transformer Bushing Outlet Terminal during Polarity Reversal Test
极性反转试验中,±800kV换流变压器套管尾部的电场分布研究
Bipolar hip semiarthroplasty for aged unstable intertrochanteric fracture
人工双极股骨头置换治疗高龄不稳定性股骨转子间骨折
Adaptability of Codeswitching and Codeswitching in English Classroom;
语码转换顺应性与英语课堂语码转换
split pole rotary converter by woodbridge
木桥形裂极式旋转换流器