Based on Combination of the MMF equation and the branch current equation, an expanded equation about the winding currents and current-limiting reactances is obtained. According to the feature that the control windings are short-circuited in turn, the current-limiting reactances are calculated for each control winding step by step.

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The channel currents appear quantal in nature, transiting in a seemingly random manner between the"open"and the "closed", and have the characteristic of"all"or"none".

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Water temperature and warm currents are the most important environmental factors that influenced the changes of Pteropods abundance in the East China Sea.

水溫和海流是影響東海翼足類總豐度分布的主要環(huán)境因素。

Antinociception and VGSC-modulation of BmK IT2 and BmK AS—1. The results from nociceptive flexion reflex and plantar radiation heat showed: BmK IT2 (a depressant insect-selective neurotoixn) and BmK AS-1 (a new-type β-1ike neurotoxin) have significant antinociceptive effects on rat peripheral nerve system. The antinociceptive effects of BmK IT2 on the carrageenan-inflamed rats were significantly stronger than those on the normal rats. Whole-cell patch-clamping showed: Both TTX-S and TTX-R Na〓 currents induced from rat DRG neurons were significantly inhibited by BmK IT2 and BmK AS—1, and BmK IT2 was more sensitive to TTX-R than TTX-S component. All the results suggested: the peripheral antinociception of BmK IT2 and BmK AS—1 might be attributed to the inhibitory effects of them on the TTX-S and TTX-R Na〓 channel located on the peripheral ends of rat DRG neurons with small diameter.

中文題名特異性鈉通道調(diào)制劑－長鏈蝎神經(jīng)毒素的藥理功能研究副題名外文題名 The study of pharmacological function of the specific modulators on voltage-gate Na+ channel-long chain scorpion neurotoxin 論文作者譚智勇導(dǎo)師吉永華研究員學(xué)科專業(yè)生理學(xué)研究領(lǐng)域\研究方向?qū)W位級別博士學(xué)位授予單位中國科學(xué)院上海生命科學(xué)研究院學(xué)位授予日期2002 論文頁碼總數(shù)93頁關(guān)鍵詞神經(jīng)毒素毒理學(xué)電壓門控鈉通道東亞鉗蝎鈉通道調(diào)制劑館藏號BSLW /2003 /R338 /22 本論文工作利用細(xì)胞和行為藥理技術(shù)系統(tǒng)地研究了東亞鉗蝎長鏈神經(jīng)毒素的抗傷害性效應(yīng)色色网亚洲色图、對電壓門控鈉通道的電生理調(diào)制作用98精品自拍视频在线观看、改變胞內(nèi)離子濃度的效應(yīng)，并分析了相關(guān)的藥理功能機(jī)制日韩综合中文。

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The first control strategy has the disadvantages such as a large amount of computations, inherent pull-out torque, difficulties in realizing the adaptive control and so forth. For the rotor flux-oriented control, changing of load or the rotor speed will result in increased or decreased torque winding currents, which will change the magnetic field distribution in the air gap. Assumption that magnetic field is approximately equal to that generated by torque windings will affect the levitation performances.

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A few more hurricanes like Katrina, a few dramatic floods in the coastal cities of the rich world, perhaps even the shutting down of a part of the world's great conveyor belt of ocean currents, especially if it were the one that warms up western Europe: any of these would catch the attention of policymakers.

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