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    • 6. 发明授权
    • Method for resolving optical isomers
    • 拆分光学异构体的方法
    • US06379552B1
    • 2002-04-30
    • US09347062
    • 1999-07-02
    • Tetsuji KitagawaAtsushi OkamotoTakashi KanaiKatsuhiro ShibayamaTomoyuki AokiShinobu Yamakawa
    • Tetsuji KitagawaAtsushi OkamotoTakashi KanaiKatsuhiro ShibayamaTomoyuki AokiShinobu Yamakawa
    • B01D1500
    • C07B57/00
    • A method for efficiently resolving optical isomers, in which a discriminating liquid consisting of a discriminating agent capable of discriminating optical isomers and a diluent are brought into contact with a mixture containing said optical isomers in countercurrent flow, to resolve the optical isomers by adsorption separation, distillation separation, absorption separation or membrane separation, and recovered at an optical isomer content of 5 wt % or less for recycled use, under one or more of the following conditions: (a) the dielectric constant of the diluent is 30 or less and the viscosity of the discriminating liquid is 0.2 Pa·s or less at the temperature of the resolving operation; (b) the discriminating agent contained has the effect of splitting the 1H or 13C-NMR spectrum peak of the optical isomers when added and the diluent contained has a dielectric constant equal to or lower than the dielectric constant of the measuring solvent at the time of measuring the 1H or 13C-NMR spectrum; (c) the boiling point of at least one compound of the discriminating agent at the pressure of the resolving operation is higher than the boiling point of at least one compound of the diluent at the pressure of the resolving operation; (d) the boiling point of at least one compound of the diluent at the pressure of the resolving operation is higher than the boiling point of the optical isomers to be resolved, at the pressure of the resolving operation, by 10° C. or more; and (e) the concentration of the discriminating agent in the discriminating liquid is 10 wt % or more.
    • 光学异构体的有效解决方法是将由能够鉴别光学异构体的识别剂组成的识别液与稀释剂逆流流动地与包含所述光学异构体的混合物接触,从而通过吸附分离来分解光学异构体, 蒸馏分离,吸收分离或膜分离,并在一种或多种以下条件下以5重量%以下的光学异构体含量回收再循环使用:(a)稀释剂的介电常数为30以下, 鉴定液的粘度在分解操作的温度下为0.2Pa.s以下;(b)所含的鉴别剂具有在添加时分解光学异构体的1H或13C-NMR谱峰的作用,并且稀释剂含有 介电常数等于或低于在测量1H或13C-NMR谱时测量溶剂的介电常数 (c)解析操作压力下鉴别剂的至少一种化合物的沸点高于分解操作压力下至少一种稀释剂化合物的沸点;(d) 在拆分操作压力下,至少一种稀释剂化合物的沸点高于分解操作压力下要拆分的光学异构体的沸点10℃或更高; 和(e)鉴别液中鉴别剂的浓度为10重量%以上。
    • 8. 发明授权
    • Magnetic noise reduction method for AC rotary electric machine, and motor control apparatus and AC rotary electric machine apparatus using the same
    • 交流旋转电机的磁噪声降低方法以及使用其的电动机控制装置和交流旋转电机装置
    • US07151354B2
    • 2006-12-19
    • US10868095
    • 2004-06-16
    • Soichi YoshinagaKenichi WakabayashiTakatoshi TakaiTatsuru MoriokaHiroya TsujiMakoto OkamuraShinobu Yamakawa
    • Soichi YoshinagaKenichi WakabayashiTakatoshi TakaiTatsuru MoriokaHiroya TsujiMakoto OkamuraShinobu Yamakawa
    • G05B5/01
    • H02P21/00H02J3/01H02K19/36H02M1/44H02P29/50Y02E40/40
    • The invention provides techniques for reducing or altering the magnetic noise of an AC rotary electric machine. A magnetic noise reducing harmonic current of order n, whose frequency is n times the frequency of the fundamental frequency component of a polyphase AC current fed to an armature of a polyphase AC rotary electric machine, is superimposed on the polyphase AC current, thereby reducing or altering a harmonic component having a frequency (n−1) times the frequency of the fundamental frequency component and occurring due to a radial magnetic excitation force acting radially on an iron core of the AC rotary electric machine. Magnetic noise is caused by a vibration whose energy is the sum of the circumferential and radial vibrations of the iron core occurring due to the magnetomotive force of the rotor, and altering the radial vibration is particularly effective in altering the magnetic noise; as the harmonic component of the radially acting magnetic excitation force, occurring due to harmonic components having frequencies 3, 5, 7, and 13 times the fundamental frequency, has a frequency 6 or 12 times the fundamental frequency, the magnetomotive force of the rotor can be effectively reduced or altered when a current having a frequency 7 or 13 times the fundamental frequency is superimposed on the stator current.
    • 本发明提供减少或改变交流旋转电机的磁噪声的技术。 频率为进给多相AC旋转电机的电枢的多相AC电流的基频分量的频率的n倍的磁噪声降低谐波电流叠加在多相AC电流上,由此减少或 改变具有基频频率的频率(n-1)倍的谐波分量,并且由于径向地作用在交流旋转电机的铁芯上的径向磁激励力而发生。 磁噪声是由振动引起的,其能量是由于转子的磁动势而产生的铁芯的周向振动和径向振动的总和,并且改变径向振动在改变磁噪声方面特别有效; 由于由于具有基频的频率3,5,7和13的谐波分量而产生的径向作用的磁激励力的谐波分量具有基频的6或12倍的频率,转子的磁动势可以 当具有基频的频率7或13倍的电流叠加在定子电流上时,可以有效地减小或改变。