density distribution 中文意思是什麼

density distribution 解釋
密度分佈
  • density : n. 1. 稠密；濃厚。2. 【物理學】濃度；密度；比重。3. 愚鈍，昏庸。
  • distribution : n 1 分配，分發，配給；分配裝置[系統]；配給品；配給量；【經濟學】配給方法，配給過程；分紅；【法律...
  1. The density distribution shows coronet as to the single mode. and the density distribution shows equality as to the multi - modes, except the little hollow in the optical fiber core. the second is coherent incidence light

    結果表明，對于非相干情況，輸出光強為中心對稱和沿徑向非均勻衰減形式；對于相干情況，輸出光強分佈為復雜的峰谷分佈形式。
  2. Given the initial conditions including ( 1 ) number density distribution in space which has the similar form to the present day ones, ( 2 ) both the power law and gaussian mass functions for clusters, and ( 3 ) two different velocity distributions which one has a constant dispersion and the other is described by the eddington formula, the dynamical evolution of globular clusters in our milky way galaxy is investigated in detail by means of monte carlo simulations

    本文採用與觀測結果具有相同形式的球狀星團空間密度分佈函數，在給定兩種球狀星團系統的初始質量譜（冪律的和對數高斯的）和兩種球狀星團系統的初始速度分佈函數（愛丁頓速度分佈函數和常數的速度彌散度）條件下，我們採用montecarlo的方法對球狀星團系統的動力學演化進行討論。
  3. The probability density distribution of + conforms to the lognormal behavior

    低速帶間距的概率密度分佈可用對數正態分佈來描述。
  4. The module was divided into sub - channels, and the hydrodynamics in each channel was just the function of the local cell packing fraction. based on the theoretical probability density distribution functio

    在裝填密度較小的時候，紊流傾向十分明顯；當裝填密度較大的時候，殼程的流動狀況與層流相對比較接近。
  5. In this paper, we focus on the following three topics : ( i ) density distribution of dusty plasma in the low - pressure collisionless positive column the radial density distributions of electron, ion and dust particle in the low - pressure collisionless positive column are investigated with a fluid theory and a self - consistent dust - charging model

    本文著重以下三個方面的研究： （ ）低氣壓無碰撞輝光放電正柱區塵埃等離子體密度徑向分佈本文採用流體模型和自洽的塵埃充電模型，研究了低氣壓無碰撞輝光放電正柱區的電子密度、離子密度和塵埃粒子密度的徑向分佈。
  6. The aa interaction which we take is in good agreement with the experimental ground binding energy of t he. the a. a potentials reproducing the experimental value of ba ( a / fe ) are obtained by folding the density distribution of the a particle and ajv local potentials which give a very good fit to the a - proton scattering data

    ） ?勢是通過選取（ ? ） -質子散射的實驗值數據較好的（ ? ） -核子定域勢、以4he核的密度分佈作折疊積分得到； -勢符合低能-散射實驗及sbe的基態共振能量。
  7. The study of the characteristics of human populations, such as size, growth, density, distribution, and vital statistics

    人口統計學對人口特徵，例如數量、增長情況、密度、分佈和人口動態統計等進行研究的學科
  8. In this thesis, we demonstrate the study of si - based light emitting materials and its importance in si - based photonics integration. we discussed mainly the gain, differential gain, threshold current of si - based quantum - dot laser and the dependence of threshold current on temperature from discrete energy level of three - dimension confined quantum - dot and state density distribution of 5 - function

    本文闡述了si基光發射材料的研究進展及它在硅基光電子集成中的重要地位，從三維受限量子點的分立能級和函數狀的態密度分佈入手，著重討論了si基量子點激光器的增益、微分增益、閾值電流及閾值電流的溫度特性。
  9. Using three - dimensional tomographic imaging results of 2 ? 2 ? grid s wave velocity and 15 ' 15 ' grid average gravity anomaly in north china, this paper adopted inversion with constrained least squares method and, as a result, obtained density distribution results of six bedding surfaces in lithosphere of north china

    摘要利用華北地區的2 ? 2 ?網格s波速度三維層析成像結果和15 ? 15 ?的網格平均布格重力異常，採用約束最小二乘方法反演，得到了華北地區巖石圈內6個層面上的密度分佈結果。
  10. A model of the interface state density distribution near by valence band is presented, and the dependence of the threshold voltage on temperature, the c - v characteristics and the subthreshold characteristics are predicted exactly with this model ; the effects of s / d series resistance on the output characteristics, transfer characteristics and effective mobility of sic pmosfets are analyzed. thirdly, the output characteristics and the drain breakdown characteristics are modeled with the procedure medici. the output characteristics in the room temperature and 300 ? are simulated, and the effects of gate voltage. contact resistance, interface state and other factors on sic pmos drain breakdown characteristics are analyzed

    提出了一個價帶附近的界面態分佈模型，用該模型較好地描述了sicpmos器件閾值電壓隨溫度的變化關系、 c - v特性曲線以及亞閾特性曲線；分析了源漏寄生電阻對sicpmos器件輸出特性、轉移特性以及有效遷移率的影響；論文中用模擬軟體medici模擬了sicpmos器件的輸出特性和漏擊穿特性，分別模擬了室溫下和300時sicpmos器件的輸出特性，分析了柵電壓、接觸電阻、界面態以及其他因素對sicpmos擊穿特性的影響。
  11. Finite element method ( fem ) is used to quantificationally simulate the current density distribution of the whole cfrc sample, and to explain the mechanism and reason for precipitations " depositing in the crack tip

    利用有限元定量地模擬了整個試件的電流密度分佈狀況，闡述了沉積物在裂紋尖端的沉積狀況及其原因。
  12. The electrical simulation compared the temperature and the current density distribution in copper lines with different width and barrier materials, the result indicating that the maximum temperature locates in the middle of the line and the 20 - degree obliquity is the most optimum one in the pore structure

    在電學模擬過程中，對比了不同條寬和不同阻擋層材料下的互連線的溫度、電流密度分佈，以及不同通孔傾角下、不同阻擋層材料下的通孔的溫度、電流密度分佈。
  13. Based on the maxwell ' s equations, the one - dimensional foil conductor ' s current density distribution equals the sum of the independent skin effect and the proximity effect current density distributions, and the one - dimensional foil conductor ' s loss equals the sum of the independent skin effect and the proximity effect losses

    本文從maxwell電磁場方程出發對一層薄銅箔的趨膚和鄰近損耗進行了研究，得出銅箔的總損耗是趨膚和鄰近效應單獨起作用產生的損耗的和。
  14. In this paper, based on the amplitude transport equation of fast varying field and the low frequency disturbance equation of electr on density, the evolutions of the density distribution of charged particles and the collapse of electric field have been calculated numerically in two dimensions with three field components under the condition of transverse wave

    所以本文採用了ftcs有限差分格式方法，利用二維三分量軸對稱，對空間飛行體與壓縮區內等離子體非穩態相互作用過程進行數值模擬，得到了電荷密度擾動與電場的變化情況。
  15. We also derived the relationship between the radial local density distribution and the observed line integral density distribution by fourier integral transform. on this basis, the density inversion calculation is realized through fft method and is independent of abel inversion

    另外，本文還著重推導了線積分密度分佈和徑向體密度分佈之間的傅立葉積分變換關系，並利用快速傅立葉變換實現了完全拋開abel反演公式的密度反演計算。
  16. Usually it is considered to have a few - body structure, which is composed of a core and valence nucleons with a large diffused density distribution

    Glauber理論是當前分析暈核反應得到暈核結構和密度分佈信息的主要理論工具之一，並且廣為使用。
  17. Probability density distribution

    溉率蜜度分佈
  18. Calculation of eddy current loss density distribution in permanent magnet of pmsm

    永磁同步電機轉子永磁體內渦流損耗密度的計算
  19. The salinity distribution characteristics are the high - salinity in the bohai bay and the low - salinity in the boahi strait. the density distribution shows that there is a large cyclonic density circulation in bohai sea and it is likely to exist some density current gyre in the middle part of the bohai sea. in winter the saddle - like pattern of the bohai sea temperature and salinity shows that the circulation structure is much complexer than the previous research results

    密度分佈表明：夏季渤海灣口已經由以前的低密度中心變為現在的高密度中心，相應的環流結構也必會發生大的變化；夏季渤海中部會存在一個反氣旋式的密度環流，並在局部可能存在多個密度流渦環；冬季渤海「馬鞍狀」溫鹽結構反映其密度環流結構要比以往研究結果復雜得多。
  20. Using the inverse model to calculate the distribution of source density, based on gauss smoke plume ' s standard density distribution, environmental capacity of fluoride in the air of northern suburban in xining was found

    摘要由高斯煙羽模式推導出的標準濃度分佈推算源強分佈的反演模式方法，計算了西寧市北郊地區環境空氣中氟化物的環境容量。
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