超弦 的英文怎麼說

中文拼音 [chāoxián]
超弦 英文
superstring theory
  • 超 : Ⅰ動詞1 （越過; 高出） exceed; surpass; overtake 2 （在某個范圍以外; 不受限制） transcend; go beyo...
  1. Witten ' s open string field theory formulate the interaction of bosonic open strings in the language of noncommutative geometry. compactification of matrix theory on the noncommutative torus was argued to correspond to supergravity with constant background three form tensor field. more generally, it has been realised that noncommutative gauge theory arises in the worldvolume theory on d - brane in the presence of a constant background b field in string theory

    Witten的開弦場論用非對易幾何描述了玻色開弦的相互作用；在非對易torus上的矩陣理論的緊化對應于帶有常數三形式張量場的超引力；更為普遍的，非對易規范理論可以自然地產生在帶有常數b背景場的三維d - brane上。
  2. Design and construction technology of suspended ceiling with aluminum slats placed in bottom chord of super large hyperboloid space truss for new terminal building of t3b in beijing capital international airport

    新航站樓超大型雙曲面網架下弦鋁條板吊頂設計及施工技術
  3. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發，提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲，在調制系數0 . 1 m 0 . 5情況下，控制移相角按正弦規律變化，使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號，經過整流、濾波、低頻逆變，從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載，移相全橋具有超前橋臂零電壓開通，滯后橋臂或者零電壓開通（ _ 0 ）或者零電流關斷（ _ 0 ）的軟開關特性，而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  4. For the bldcm which has a pseudo - sinusoidal back - emf waveform, this dissertation presents a svpwm control method using six discrete position signals for minimizing the torque ripple. the main aspects for the implementation of this method are analyzed, including the initial orientation of the voltage vector, reasonable choice of the impedance angle and the advance commutation angle, and estimation of the successive rotor positions

    針對反電動勢類似正弦的準正弦波反電動勢無刷直流電動機，本文提出一種基於六個離散位置信號的自同步svpwm （電壓空間矢量法）控制方法，用以削弱電磁轉矩脈動，分析了實現這種方法的主要控制環節，包括起動時電壓空間矢量的初始定位，阻抗角與電流超前角的合理選擇以及連續轉子位置的估計等。
  5. Therefore, by determining the intensity of ultrasonic damping, the mechanical properties of composite can be predicted directly

    結果表明，可以通過超聲衰減的弦度直接預測復合材料的力學性能。
  6. Second, we obtain a new quark potential from the effective dilaton - gluon - coupling inspired by superstring theory and devote more effects to understand this new confinement generating mechanism through the investigation of the phenomenological application of this interquark potential in the heavy mesons sector

    其次，由超弦理論啟發的伸縮子?膠子有效耦合，給出了一種新的夸克勢，並在重介子系統中研究了這個勢提供的禁閉機制。
  7. We obtain a new quark potential from the effective dilaton - gluon - coupling inspired by superstring theory, and by using this static potential, we explore the mechanism of quark confinement through calculations of the spin - average energy levels, the widths of the leptonic decays and radiative transitions for heavy quarkonium. the obtained results are compared with that of the cornell potenial

    由規范場理論的超弦理論所激發的伸縮子一膠子有效藕合，給出了一個新的靜態夸克一反夸克勢，討論了此勢模型下重介子的自旋平均能譜、輕子衰變和輻射躍遷寬度，並與cdrn叭勢模型所得到的相應結果作了比較
  8. The putting forward of the superstring theory was the dawn of hope for the deadlock

    超弦理論的提出正好為這死結展露一線曙光。
  9. I love rock, blues, and pop music especially the 70 ' s and 80 ' music because these 2 decades are the most prosperous generations and a lot of great music, songs, artists, and super bands were born in the 70 ' s and 80 ' s and their music usually could be the " hooks "

    我很愛搖滾，藍調，跳舞及流行音樂，由其是70及80年代的音樂，因那兩個年代的音樂是最繁盛和萬花齊放的，很多出色的音樂，歌曲，藝人，及超級樂隊都在那兩個年代誕生，他們的音樂與歌曲永遠扣人心弦，百聽不厭。
  10. It is a novel short - distance wireless communication technique, in which data are transferred using non - sinusoidal pulses with very short duration, so it is fit for using in indoor environments which is a typical multipath environment. and it can be coexisted with the existing wireless communication systems at the same frequency band

    超寬帶通信系統利用納秒至皮秒級的非正弦波窄脈沖傳輸數據，非常適合作為城區及室內密集多徑環境下的應用，並且能夠與現有的傳統窄帶系統共存。
  11. The leading candidate for a unified theory holds that reality stems from tiny strings, or loops, or membranes, or something wriggling in a hyperspace consisting of 10, or 16 or 1, 000 dimensions ( the number depends on the variant of the theory, or the day of the week, or the theorist ' s zip code )

    統一場理論中最有希望的是超弦理論，這個理論認為現實世界是從微小的弦或環或膜或其它什麼在超空間中糾纏在一起的東西派生出來的，超空間由10或16或1000維組成，這一數字由這個理論的變量決定，或者由日期決定，或者由理論家的郵政編碼什麼的決定。
  12. My thoughts on the theory of relativity, quantum mechanics, superstring theory and dark matter 07 06

    對相對論量子力學超弦及暗黑物質的聯想07 06
  13. Astro news - " my thoughts on the theory of relativity, quantum mechanics, superstring theory and dark matter

    天文新知對相對論量子力學超弦及暗黑物質的聯想
  14. Lets take a brief look at the intricate relationship among special and general theory of relativity, quantum mechanics, superstring theory and unified field theory using the two examples of light speed and space - time

    我們可以透過光速和時空兩個例子去簡略看看狹義相對論廣義相對論量子力學超弦理論及統一理論間千絲萬縷的關系。
  15. What about time & timelines of possibility

    超弦理論中的可能性時間?又如何
  16. Lu and huang extended their discussion to fermionic strings and green - schwarz superstrings

    Lu和huang把brevik的討論推廣到玻色子開弦，費米子弦和超弦等情況。
  17. In the domain of astronomy and physics, there have been many more miraculous theories similar to superstring. the new star in recent years is dark energy

    在天文學及物理學的范疇，跟超弦的超玄性質相似的還有不少例子，暗黑能量就是近幾年的新主角。
  18. The theory not only reconciles the general theory of relativity and quantum mechanics, but also made them complementary to each other

    超弦理論不單消弭廣義相對論及量子力學的不相容性，而且使這兩大理論互相依存，缺一不可。
  19. Once again, our views on spacetime encountered a revolutionary change

    此外超弦理論也再次為我們的時空觀起了翻天覆地的革命。
  20. Should this miraculous theory represents 21 century physics that fells accidentally into the 20 century, since it might not have been discovered for another century by the normal progression of science, or is it just like what yang zhen - ning believed : not a real thing

    但這超玄的超弦，到底是一件21世紀的產品，不小心掉進20世紀，還是如楊振寧所相信的，它不是真正的貨色。
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