負阻 的英文怎麼說

中文拼音 [fùzǔ]
負阻 英文
[電學] [半] negative resistance
  • 負 : Ⅰ名詞1 （負擔） burden; load 2 （虧損） loss 3 （失敗） defeat Ⅱ動詞1 [書面語] （背） carry on th...
  • 阻 : 動詞（阻擋; 阻礙） block; hinder; impede; obstruct
  1. Torsional interaction exists between hvdc converters and turbine - generators, and negative electrical damping provided by hvdc may cause subsynchronous oscillation ( sso ) that can lead to turbine - generator shaft failure and electrical instability at oscillation frequencies lower than the fundamental system frequency

    高壓直流輸電（ high - voltage - direct - current - - - - hvdc ）系統與臨近同步發電機組之間存在著扭振相互作用， hvdc的電氣負阻尼作用有可能引起機組在次同步頻率范圍的扭轉振蕩。
  2. Those sensitive parameters making system have negative damping and occur self - excited shimmy are horizontal pulling lever rigidity, tire sideslip rigidity, steering gear rigidity and damping, kingpin equivalent damping, kingpin caster angle, tire drag. and wheel center distance, tire side rigidity, vehicle wheel unbalanced mass, tire vertical rigidity, and distance from kingpin center to the vertical central line plane of tire have great influence on shimmy, but they do n ' t make the system have negative damping. and horizontal pulling lever damping, suspension damping and rigidity have very small influence on shimmy

    橫拉桿剛度、輪胎的側偏剛度、轉向機剛度、轉向機阻尼、繞主銷當量阻尼、主銷后傾角、輪胎拖距是影響擺振的敏感性參數，適當調節某一參數可引起系統的負阻尼，使系統產生自激擺振；輪距、輪胎側向剛度、車輪上的不平衡質量、輪胎垂向剛度及主銷延長線與地面交點至車輪平面的距離對擺振的影響也較大，但不會使系統出現負阻尼；而橫拉桿阻尼、懸架阻尼與懸架剛度對擺振的影響很小。
  3. Active simulation of passive gradient network based on fdnr

    于頻變負阻的無源梯形網路的有源模擬
  4. Development of cmos devices and circuits with sub - 0. 1 m gate length

    新型高頻硅光電負阻器件的特性模擬及測試分析
  5. Negative resistance amplifier

    負阻放大器
  6. Negative resistance oscillation

    負阻振蕩
  7. Negative resistance effect

    負阻效應
  8. Bonded nr diode

    鍵合負阻二極體
  9. The junction voltage decreases with the increase of current above 10ma. there is an effect of the negative resistance

    當結電流增至20ina以後，隨電流的增加，結電壓減小，出現負阻現象。
  10. Current research of the technique of ga diffusion and the negative resistance effect of open - tube ga - diffusion transistor are emphasized

    重點介紹了目前開管ga擴散工藝的發展現狀和開管擴鐮晶體管負阻效應的研究現狀。
  11. Even though much has been devoted to the research of it, the mechanism of the negative resistance effect and the effective means to reduce it are rarely reported

    盡管前人對負阻現象作了不少研究，但負阻存在的機理、減小負阻的有效措施等問題卻鮮見報道。
  12. Yet the outstanding shortcoming of open - tube ga diffusion is the apparent negative resistance effect in the ic - vce characteristic curve, which is not what we hope

    盡管如此開管擴鎵的突出缺點是在特性曲線中的負阻效應較為明顯，負阻現象的存在是我們不希望的。
  13. According to these theories we know the reason of the emergence of low frequency oscillation is lacking positive damping even appearing negative damping. this problem can be classified as dynamic stability

    從而得出，電力系統低頻振蕩是由於系統正阻尼不足甚至產生負阻尼而引起的，可以將其歸類為動態穩定問題。
  14. Through the deep study of f. d. demello dynamic model of electromechanical transition and synchronous generator theory, we proposed a new control strategy of excitation device that can eliminate the negative - damping phenomenon, which is directly against the cause of producing negative - damping represented as low frequency oscillation in the system

    通過深入研究f . d . demello機電暫態的動力學模型以及同步發電機理論，針對系統產生負阻尼即低頻振蕩的原因，我們提出了一種新的可消除負阻尼現象的勵磁控制策略。
  15. On the contrary, because of the effect of positive damping provided by the inverter, the unit near a inveter will have no subsynchronous oscillation risk. based on the same method described above, a damping study is carried out for a hybrid ac / dc system, which include a hvdc link and an ac transmission line in parallel

    研究表明，系統整流站附近的同步發電機組要承受電氣負阻尼作用，因此有可能引起機組低頻扭轉振蕩模式失穩；而hvdc的逆變站向其臨近同步發電機組提供正阻尼，因而機組不存在次同步振蕩危險。
  16. The characteristics of damping shows that the uncompensated parallel ac transmission line can release the coupling between the hvdc and generator and improve the damping of the system, hence the possibility of subsynchronous oscillation decrease. in such a system scheme, the hvdc system dominates the changes of damping due to the small magnitude of the damping provided by ac line. when the ac transmission line is compensated with a fixed series capacitor, the situation will be totally different

    其中，並列運行的無串補交流輸電線路可以緩解hvdc與其臨近機組之間的機電耦合程度，改善hvdc的電氣負阻尼特性，從浙江大學博士學位論文摘要而減輕機組發生次同步振蕩的危險性，此時系統的整體電氣阻尼特性由hvdc的性質決定;但若交流線路中存在串聯補償電容，則系統幅值較大的電氣負阻尼不僅可能使整流站機組發生次同步振蕩，逆變站附近機組同樣存在發生次同步振蕩的可能性，此時系統的整體阻尼特性由串聯補償電容的性質決定。
  17. Negative impedance converter

    負阻抗變換器
  18. The u - i properties of the samples at room temperature and cryogenic temperature ( 77k ) were measured by three - point method, and it was found that there is an effect like negative resistance in such multilayer films

    本文採用三點法測定了常溫、低溫下的u - i特性，發現常溫、低溫下納米量級的硅氧化硅多層膜具有類似負阻的特性。
  19. In the experiment we also observed negative differential resistance characteristics of gesi hbts with heavily doped base at high collector - emitter voltage and high current. a new interpretation to this phenomenon was given. this

    在實驗中我們還觀察到，在高vce和大電流下，重摻雜基區gesihbt出現負阻現象，我們對這一現象進行了新的解釋，認為這是由熱電負反饋導致的。
  20. However, when the applied bias voltage is located within negative slope regions of u - i curve, the superlattice will undergo a very fast dynamic process, changing from one stable state to another stable state. the superlattice exhibits temporal current oscillations in the negative differential conductivity region at fixed d. c

    當外加電壓使電流處于正微分電導區變動時，超晶格的高低電場疇之間的疇邊界不發生移動，只是相應的電場強度作些調整；當外加電壓使電流處于負阻區域時，超晶格將經歷一個穩態到另外一個穩態的動力學轉變。
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