resonance enhancement 中文意思是什麼

resonance enhancement 解釋
共振增強
  • resonance : n 1 回聲，反響；【物理學】共鳴，共振；【無線電】（波長的）調諧。2 【化學】中介（現象）。3 【醫學...
  • enhancement : 加強；擴大；增強
  1. Study of fluoroscopic triggering technique in 3d - dynamic contrast enhancement magnetic resonance angiography

    低場磁共振三維增強血管造影應用初探
  2. It is a new heat transfer enhancement method to apply helmholtz resonance chamber to convective heat transfer in a pipe

    將helmholtz共振腔應用於換熱器來增強換熱是一種新的強化換熱方法。
  3. Diagnostic value of 3d - contrast enhancement magnetic resonance angiography in arteriosclerosis obliterans of lower limb

    在下肢動脈硬化閉塞癥中的診斷價值
  4. Resonance enhancement of electro - optical effect by second - order nonlinear optical polyurethane

    二階非線性光學聚氨酯對電光效應的共振增強
  5. It is found that the fwm field can cause the asymmetry of electromagnetically induce transparency profile. in addition, the effect of different propagating orientations of probe field on the electromagnetically induced transparency is also discussed. in the molecular multi - level system with the perturbed superposition levels, we discuss the electromagnetically induced transparency, spontaneous emission enhancement, double dark resonance and double electromagnetically induced transparency by using the density matrix equation under weisskopf - winger approximation and dressed - state density matrix equation

    針對實際的實驗條件，考慮了一種影響量子干涉的新的因素-四波混頻場，研究了四波混頻場對雙光子探測的-型能級體系的eit的影響，發現四波混頻場能夠導致雙光子探測的eit線型的不對稱，在此基礎上，討論了不同探測場的傳播方式對eit的影響，針對分子中實際存在的包含有微擾能級的不同多能級系統，我們分別採用綴飾態繪景下的密度矩陣方程和weisskopf - wigner近似下的密度矩陣方程詳細地討論了電磁感應透明、自發輻射的干涉相消和相長、雙暗態共振和雙電磁感應透明現象。
  6. Then some cavity quantum electro - dynamic ( cqed ) effects are studied by experiment. the photoluminescence ( pl ) intensity enhancement at resonance wavelength and suppression at off - resonance wavelength, emission spectrum narrowing as well as emission intensity redistribution in space are observed in the microcavity device fabricated with distributed bragg reflector ( dbr ) and silver mirror as well as that done with two silver mirrors

    分別在帶有dbr結構的平面微腔及全金屬鏡構成的平面微腔中觀察到了諧振模式處的輻射增強及非諧振模式處的輻射抑制，發射譜線窄化以及輻射強度空間分佈重組等腔量子電動力學現象。
  7. The diagnosis of tuberculous meningitis was confirmed by polymerase chain reaction and the discovery of diffuse leptomeningeal enhancement in the basal cistern with downward extension to the spinal cord was made by magnetic resonance imaging

    本患者結核性腦膜炎的確診是經由陽性的結核聚合鏈反應和核磁共振掃描影像發現在基底池有廣泛的軟腦膜顯影並且向下延伸到脊髓。
  8. The influence of various waterpower and configuration parameters on heat transfer is analysed and the rules of convective heat transfer coefficient and the ratio of heat transfer enhancement with mass flux are obtained. at the same time, we gain important results as below : as for resonance chamber with certain configuration, self - oscillation can be generated under suitable configuration and waterpower parameters. for the same configuration resonance chamber, the intensity of the self - oscillation is changed by the waterpower parameters

    當流量及壓差降低至一定程度時，共振腔還可能削弱換熱；加熱功率的提高會增加流體（水）的溫度，流體的粘度會隨著降低，這會減少對流體脈動的阻礙，使脈動衰減得更慢，而脈動幅度的增加會增強換熱，故加熱功率對有脈動的對流換熱是有影響的；自振腔產生的流體脈動頻率是自振腔固有頻率或其整數倍，流體脈動頻率過高或過低都不利於對流換熱，存在一有利於強化換熱的頻率范圍。
  9. The heat transfer enhancement is different under different oscillator. there is the optimum oscillation intensity under which the heat transfer coefficient will be increased by about 30 percent. the change of outlet structure size of a resonance chamber shows little effect on the strength of heat transfer : the pressure of the optional heat transfer coefficient always is between 0. 4mpa and 0. 6mpa, and the optional heat transfer coefficient is enhanced by 30 percent or so

    不同的振蕩強度，強化換熱的效果也不同，存在一個最佳強度，此時的強化換熱效果最好，可以將表面換熱系數提高30 %左右；對于同一共振腔，配合以不同的出口結構尺寸，對于換熱效果的強化的影響變化不大：出現最佳強化效果時的壓力基本都在0 . 4 - 0 . 6 ，最佳的強化效果也都是將表面換熱系數提高30 %左右。
  10. This paper will first discuss bandwidth enhancement in general, and then research the multiple resonance method to enhance the bandwidth

    在討論微帶天線頻帶展寬的基礎上，研究多諧振方式展寬頻帶的方法。
  11. Self - oscillation initiated by helmholtz resonance chamber with different configuration under different waterpower parameters is introduced in the paper. the influence on the heat transfer enhancement of the heat exchanger by applying resonance chamber is discussed in detail

    本文介紹了不同結構的helmholtz共振腔在不同的水力參數下產生的自激振蕩情況，以及將自激振蕩應用於換熱器上對強化換熱的影響。
  12. Congenital aortic arch anomalies diagnosed by contrast enhancement magnetic resonance angiography

    對比增強磁共振冠狀動脈成像的初步研究
  13. However, the inherent shortcoming of piezoelectric transformer hinders its further development. the major problems include : ( 1 ) the development and design of the piezoelectric transformer involve in lots of theoretic aspects including the design of material, dimension, electrode and circuit ; ( 2 ) it is hard to harvest high voltage enhancement ratio and high - power output simultaneously ; ( 3 ) the operation of the piezoelectric transformer is strongly dependent on the resonance frequency, which leads to the difficulty in the design of driving circuit

    但其自身所存在的固有缺點也在很大程度上限制了壓電變壓器的進一步發展，突出的問題有:壓電變壓器的研製包括材料設計、尺寸設計、電極設計和電路設計等多個環節，所涉及的理論面很廣;壓電變壓器的高陞壓比和大功率輸出難以同時得到保證;壓電變壓器的工作過多地依賴于諧振頻率，為外部電路的設計帶來了困難。
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