球度分佈 的英文怎麼說

中文拼音 [qiúdùfēnbù]
球度分佈 英文
sphericity distribution
  • 球 : 名詞1 （以半圓的直徑為軸 使半圓旋轉一周而成的立體; 由中心到表面各點距離都相等的立體） sphere; glo...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  1. 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。
  2. The studies of plane heterogeneity are as follows : the text counts the parameters of the sandlayers " geometric shape of different sedimentous microfacies ; speculates the conditions of lateral communication by sandstone density according to the method brought forward by j. r. l. allen ; gets a group of parameters including the reservoir thickness, porosity and coefficient of permeability by using kriging method according to the data of logging results ; makes certain the direction of coefficient of permeability with variation function by modeling globosity function ; divides the sandlayers into five types by using the method of flowing cell based on three parameters, that is x h, kxh and h / h, and accounts the favorable region. on the base of above - mentioned studies, the text evaluates the heterogeneity of sandlayers and gives the resolutions to these problems to serve the development of the field

    Allen ）等人提出的統計方法，用垂向上砂體密度的界限來推測砂體側向連通情況；根據每口井的測井解釋資料，利用克里金插值法對外間進行插值，得到了一組反映儲層特徵在平面上變化的參數，包括儲層厚度分佈、孔隙度以及滲透率，並且成圖；利用變差函數法，通過球狀函數模擬，確定儲層優勢滲透率方向：根據流動單元法，以儲能系數、容積系數以及凈毛厚度比三個參數為依據，通過聚類分析方法進行流動單元劃分，並且按照參數特徵將其分為五類，統計各砂層有利流動單元區塊。
  3. According to sedimentary characteristics of the carboniferous taiyuan formation in feicheng coal field, including lithology, size distribution, sedimenta ry structure, geochemistry and paleontology etc., the carboniferous paleoenvironme nt of this area is divided into carbonate open platform and tidal flat environme nt. it is recognized that the taiyuan formation is formed in the epicontinental c oast which is dominated by the tidal. the peat flat is the important paleoenviron ment for coal accumulation. the tidal channel destroys the coal bed. the pulsative vibration of the crust is the major factor which controls the evolution of the sedimentary environment and the coal accumulation

    根據肥城煤田石炭系太原組的巖性、粒度分佈、沉積構造、地球化學及古生物等沉積特徵，將該區晚石炭世古地理劃分為碳酸鹽開闊臺地和潮坪環境，認為太原組形成於潮汐作用為主的陸表海海岸，泥炭坪是成煤的重要古地理環境，潮渠對煤層有一定的破壞作用，地殼的脈動性振蕩作用是控制沉積環境演化和聚煤作用的主要因素。
  4. Abstract : according to sedimentary characteristics of the carboniferous taiyuan formation in feicheng coal field, including lithology, size distribution, sedimenta ry structure, geochemistry and paleontology etc., the carboniferous paleoenvironme nt of this area is divided into carbonate open platform and tidal flat environme nt. it is recognized that the taiyuan formation is formed in the epicontinental c oast which is dominated by the tidal. the peat flat is the important paleoenviron ment for coal accumulation. the tidal channel destroys the coal bed. the pulsative vibration of the crust is the major factor which controls the evolution of the sedimentary environment and the coal accumulation

    文摘:根據肥城煤田石炭系太原組的巖性、粒度分佈、沉積構造、地球化學及古生物等沉積特徵，將該區晚石炭世古地理劃分為碳酸鹽開闊臺地和潮坪環境，認為太原組形成於潮汐作用為主的陸表海海岸，泥炭坪是成煤的重要古地理環境，潮渠對煤層有一定的破壞作用，地殼的脈動性振蕩作用是控制沉積環境演化和聚煤作用的主要因素。
  5. The physicochemical properties of cx - 2 correspond to cytodex - 3 mc produced by pharmacia, including of color, loss of drying, area, density, size, soakage, dilation, stability, size distribution, mechanical strength, surface structure, etc., but its cost of manufacture is lower than cytodex - 3 " s

    通過優化工藝制備的cx - 2微載體，在色澤、乾燥失重、比表面積、成球率、密度、直徑、吸水量、溶脹度、粒度分佈、表面結構、機械強度、穩定性等理化指標與pharmacia公司cytodex - 3微載體相當，但成本價格要低得多。
  6. On the basis of lorenz - mie theory, this paper is devoted to the research on characteristics of intensity and spectrum distributions of each order rainbow for a homogeneous particle, with the usage of geometric optics theory, airy theory and debye theory

    本文基於小粒子散射的lorenz mie理論，結合彩虹的其它理論（幾何光學理論、 airy理論、 debye理論）研究了均勻球、柱粒子各階彩虹強度分佈和頻譜特點。
  7. Abstract : it is observed that the sommerfeld ' s formula for a progressive spherical wave is not covariant with respectro the rotation of the coordinate system. it contains complex partial waves that are not physical. the standing wave representation of the same formula is shown to be covariant and physical. it is applied to solve the boundary value problem of fiber optics. the radiation modes as well as the guided normal modes are obtained in closed forms. the intensity distribution in various modes is obtained. it is remarked that the mode of critical refraction is missing

    文摘:說明了球面行波的索末菲公式在坐標轉動下不協變.證明了球面波的駐波表示是協變的，因而是一個物理的關系式，故適用於圓柱坐標中各類波動方程的定解問題.作為一個例，應用於光纖光學，導出了受導簡正模和輻射模的表達式，以及各模式的強度分佈
  8. During the work of designing the structure of parallel machine tool, in allusion to the main shortcoming of stewart platform mat its workspace is strait, we decide to design a stewart type parallel machine tool which fulfill the given spherical position workspace and have the best dexterity, genetic algorithm is used in this paper. because the calculation of the fitness function is complex, backpropagation arithmetic is used to approach fitness function. the results show that mis method has good accuracy and computing efficiency

    在並聯機床的結構設計中，針對並聯機床的工作空間有限且受刀具姿態影響大的弱點，提出了以保證非零最小可達章動角球形主工作空間的基礎上，使操作靈敏度暨剛度分佈最優化的設計目標，優化方法的選用了遺傳演算法，結合神經網路技術，該方法取得了很好的結果。
  9. The characteristics of each rainbow for an inhomogeneous particle are studied here using lorenz - mie theory. the relation of the positions of airy peaks to each order rainbow with the profile of refractive index is simulated and discussed, which is compared with the results simulated by ray tracing theory

    本文還利用lorenz mie理論分析了非均勻球粒子各階彩虹的強度和頻譜分佈特點，利用ifft方法重建了各階彩虹的強度分佈；分析研究了各階彩虹的airy峰角位置與折射率分佈的關系，並與非均勻粒子射線追跡理論的模擬結果進行比較。
  10. Abstract : it is essential to research radar clutter with non - gaussian spectrum and non - r ayleigh distribution in modern radar design. based on spherically invariant rando m process ( sirp ), this paper applies a new algorithm to model the clutter with k d istribution in amplitude and any power density spectrum. at last it is proved tha t thi s method is correct and applicable with real simulative clutter and statistical detection result

    文摘:研究並模擬具有非瑞利幅度分佈和非高斯功率譜的雷達雜波是現代雷達信號處理中的一個重要的研究課題.文中基於球不變隨機過程（ sirp ）的建模方法，針對實地採集的幅度滿足k分佈並具有有理功率譜的高解析度雷達雜波，運用現代譜估計演算法對其進行建模和模擬，並以模擬雜波與實際雜波的數據對比和統計檢驗的結果對該方法進行了驗證
  11. Transmission elector microscopy was used to observe zno nano - particles. the results indicated that zno appeard in spherical powder of hexagonal struture with the range of 30nm - 40nm

    在透射電鏡上對zno納米微粒的表徵結果為： zno微粒呈球狀，六方晶型，粒度分佈范圍為30nm 40nm 。
  12. This edta route has several remarkable advantages in comparison with other method. because of the greater ability of edta anions to chelate metal cations, and forming very stable and soluble complexes, all of the starting materials are mixed at the molecular or atoms level in a solution, it is easy to control the composition and a high degree of homogeneity is achievable

    傳統的合成方法是高溫固相反應，由於灼燒溫度高、灼燒時間長，形成硬團聚體，產物粒徑較大，一般為m級，需進行球磨粉碎以減少其粒徑，很難制得均相、均一粒度分佈的氧化物粉體，在研磨過程中容易引入雜質且晶形破壞使得發光亮度減小。
  13. Comparing with the current observations, which include the number density distribution in space, mass function, etc., the so - called standard modes for both the power law and gaussian cluster initial mass functions are selected among many runs of simulations. the deviation from the standard modes, which is resulted from the change of the parameter for the initial conditions, is discussed in detail. the discussion of the model parameters is also presented although they are adopted as the typical values based on previous work

    對應一定的初始分佈我們發現無論是冪律的還是對數高斯的球狀星團初始質量譜經過長時間的動力學演化都會得到和現在銀河系觀測到的球狀星團系統相符的對數高斯的質量分佈；動力學演化會明顯地改變球狀星團系統的空間密度分佈，靠近銀心區域的球狀星團瓦解得更多；經過動力學演化后的球狀星團速度分佈函數在靠近銀心的區域明顯得不同於初始分佈，初始擁有較大軌道偏心率的球狀星團更容易瓦解。
  14. Standard tables for reference solar ultraviolet spectral distributions : hemispherical on 37 tilted surface

    太陽紫外線光譜分佈參考標準表: 37度傾斜表面上的半球形分佈
  15. The studies of circulation in ecs were most based on the analysis of temperature and salinity data and diagnostic mode. aim at breaking this limitation, we had established a quasi - predictive model in the ecs by reconstructing the pom model to overcome the difficulties brought to the simulations by steep terrain and great density gradient in the new model, the monthly mean sst data in the ecs and the result of global ocean model were used as the boundary conditions to simulate the distribution of the temperature and the circulation structure in the ecs

    針對以往溫、鹽資料分析和模式診斷方法為主的東中國海環流研究的局限性，通過改造pom模式，克服因陡峭地形和大密度梯度給模擬帶來的困難，建立了東中國海環流準預報模式，運用本文第三章獲得的sst資料和全球大區模式的結果作為模式的邊界條件，模擬了東中國海溫度分佈與環流結構。
  16. It has long been known from observations that the metallicity distribution of galactic gcs shows bimodal structure. in recent years the same distribution feature has also been found in other galaxies. how to explain this phenomenon is a challenge to the formation and evolution of gcs

    觀測發現銀河系和其它星系中的球狀星團系統普遍表現出類似的金屬度分佈雙峰結構，這一分佈特徵成為研究球狀星團形成與演化極為重要的觀測約束條件。
  17. The sense of this work is to gain a further understanding of helium in the two metals. on the diffusion of helium - 3 in two spherical shell samples made of 21 - 6 - 9 type of stainless steel, during the storage of tritium at the pressure of 6. 13mpa for about 4 and 6 years at room temperature and later exposed to air for another 3 and 1 year. first, a calculation based on the analytical and numerical method to the diffusion and decay theories was developed to evaluate the concentration distribution of helium - 3 by tritium diffusion and decay in the samples

    在不銹鋼氚衰變~ 3he的擴散行為研究中，建立了氚和~ 3he濃度分佈的解析解和數值計算方法，以評估充氚不銹鋼球形容器壁中氚衰變~ 3he的宏觀濃度分佈，同時還用數值計算方法以求解氚和~ 3he的多步擴散行為；對樣品表面逐層蝕刻、同時收集釋放的~ 3he進行分析，分別實測了經室溫條件下在6 . 13mpa高壓氚中貯存4年和6年、空氣中存放3年和1年的兩種21 - 6 - 9不銹鋼球殼樣品內壁中~ 3he濃度分佈；結果表明：由於he在金屬中的不可容性， he原子偏聚于不銹鋼表面以及內部的局部區域，在整體趨勢上， ~ 3he分佈與計算結果相一致，根據理論計算，兩種21 - 6 - 9不銹鋼球殼樣品內壁中~ 3he到達的深度分別為350 m及500 m 。
  18. In this paper, global and local indoor radon distributions are modeled using extreme value theory ( evt )

    本文中全球及地區室內氡氣濃度分佈使用極端值理論。
  19. While by introducing the spherical simplex ut, a better - behaved sigma point selection strategy, the number of sigma points required to the same transformation accuracy can be dramatically reduced, and accordingly, the computation burden can be avoided

    為此，通過引入簡化球形分佈sigma點ut變換減少了sigma點的數量，在保證了精度的同時，使得濾波演算法的計算量大大減少。
  20. On the basis of preparing powders with usual technological parameters of thermal spray, the influences on powders properties of ball milling time, assistant reagents of ball milling and conditions of heat treatments are discussed, and then it comes to the optimal preparation project

    在採用常規熱噴塗工藝參數進行粉末制備的基礎上，討論了球磨時間、球磨助劑、熱處理條件對粉末性質的影響，得出最佳的制備方案。該方法可以制備出粒度分佈均勻、性質穩定，粒度為200 500nm的超細銅鋅粉末。
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