fluctuation of density 中文意思是什麼

fluctuation of density 解釋
密度起伏
  • fluctuation : n. 1. 波動，起伏，漲落；【物理學】脈動。2. 動搖不定，躊躇。3. 【生物學】彷徨變異。
  • of : OF ＝Old French 古法語。
  • density : n. 1. 稠密；濃厚。2. 【物理學】濃度；密度；比重。3. 愚鈍，昏庸。
  1. Thermodynamical fluctuation of number density of particles in grand canonical ensemble of perfect systems

    理想體系巨正則系綜中粒子數密度的熱力學漲落
  2. At a definite temperature a mesoscopic circuit isnt in a determinate quantum state instead of in the mixed state ( or statistical state ). using the density matrix of the canonical ensemble, we have deduced the formulate of the quantum fluctuations of both charge and current in a non - dissipative mesoscopic coupled circuit. and the dependences of the quantum fluctuation of the circuit on its temperature have obtained

    在有限溫度下，介觀電路系統實際上並不處在一個確定的量子狀態，而是處在混合態.根據正則系綜的密度矩陣導出耦合互感電路中電荷和電流的量子漲落，得到了量子漲落與溫度的依賴關系
  3. The influence of printing speed on the density and chromaticity of the three - color was analyzed quantitatively through experiments to control the effect of printing speed fluctuation on the color reappearance

    為了控制印刷速度的波動對色彩再現的影響，採用實驗的方法，定量地分析印刷速度變化對印刷三原色的密度及色度的影響。
  4. Making use of the wigner transform of the one - body density matrix, the coherent density fluctuation model ( cdfm ) is introduced into semiclassical distorted wave ( scdw ) model. the new model is applied to the analyses of multistep direct processes of ( p, p ' x ) reactions to continuum

    本文利用單體密度矩陣的wigner變換，將相干密度漲落模型（ cdfm ）引入半經典扭曲波（ scdw ）模型，並將新的scdw模型應用於分析預平衡反應（ p ， p ' x ）中散射到連續態的多步直接過程。
  5. The measurement was made on a gas - solid fluidized bed in our laboratory. the pressure fluctuation signals were obtained and analyzed through power spectrum density. the relation of the particle size to pressure fluctuation and other parameters was studied by using fuzzy set theory

    在實驗室條件下對氣-固流化床的顆粒進行了測量，通過功率譜密度對所獲得的壓力波動進行了分析，並應用模糊集理論對顆粒尺寸與壓力波動及其它影響參數的關系進行了研究。
  6. Under a certain magnetic field, the density and stability of anode plasma determines the ion current density and its fluctuation

    在確定磁場強度下，陽極等離子體密度和穩定性決定了引出離子束流密度的大小及其波動幅度。
  7. Lerr is obtained through tracing the variety of elastic energy density of each element and recording the maximal fluctuation when brittle failure happens during numerical calculation

    該指標的實現是通過在數值計算中追蹤每個單元彈性能量密度變化的全過程，記錄單元發生脆性破壞前後的彈性能密度差值，得到單位體積巖體突然釋放的彈性能量。
  8. The probability density distribution of the particle velocity fluctuation differs in different flow regions, and is approximately normally distributed where the space restrictions are small. velocity fluctuation of particles with different sizes is similar

    顆粒脈動速度的概率密度分佈隨流區有所差異；在空間尺度影響較小的范圍接近正態分佈；各種粒徑的顆粒脈動速度具有相似的特性。
  9. The second aspect : from qgp kinetic equations with collision integrals, by using the relaxation time approximation, we calculate the distribution functions to the second order correction. we obtain the distribution functions for quarks ( and anti - quarks ) and gluons under perturbation of the fluctuation of the color field. then in the high - temperature - low - density area, we discuss the characteristics of the distribution functions, and use t hem to get the net baryon density and the energy density

    第二，從有碰撞項的qgp動力論方程出發，忽略自旋，在色漲落擾動下，利用弛豫時間近似，得到夸克和膠子分佈函數的二級修正，通過數值分析重點討論了高溫低密情況下qgp中成分粒子分佈函數的特性，並且由分佈函數得到凈重子數密度和能量密度。
  10. We employ largest lyapunov exponent to explore the relation between the chaos and phase transition. then, we study the mechanic ( spinodal ) instability of these nuclear systems with the density fluctuation

    我們通過改變基態核的溫度（激發能） ，來研究核體系隨溫度（激發能）的改變而發生的相變。
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