poisson 中文意思是什麼

poisson 解釋
泊松
  1. So the general distribution patterns of s. tsinyunensis are clumped type with a high clumped intensity. the diffusing tendency high consistency with the mathematics mode, i. e., the theoretic modes of the negative binominal distribution and poisson distribution

    在所調查的8個群落樣線上,地上植株數量最少的有33株(種群v ) ,最多的有442株(種群111 ) ,平均株間距最小為1
  2. The competition among those species like s. tsinyunensis, dryopteris erythrosora and veronicastrum stenostachyum etc., is intense in the communities, which may be one of the reasons why s. tsinyunensis is going to be endangered and with a very restricted distribution. the distribution patterns of the seven populations of s. tsinyunensis are clumped among the eight populations we studied, except population v of random distribution. the spatial pattern of 6 populations of s. tsinyunensis have high consistency with the negative binominal distribution, while another 2 populations, i. e., i and iii are poisson distributions

    6 )縉雲黃芩各種群空間分佈格局基本呈聚集分佈,其中7個種群的分佈格局類型是聚集分佈,其聚集強度較高,另有一個種群為隨機分佈;其種群的離散分佈擬合結果也嚴格符合一定的數學模式,其中負二項分佈、 poisson分佈分別是該物種種群空間分佈的理論分佈模式,其中6個種群擬合出的結果是負二項分佈,種群i和種群m擬合出的結果是poisson分佈。
  3. We compare the approximation of an analytic function f by its taylor polynomial and its poisson partial sum with the same number of terms and illustrate that for functions with limit zero at infinity and for bounded functions the poisson expansion provides a better approximation to the function than the taylor expansion

    在第三章中,介紹了rb曲線與poisson曲線的概念以及基本的幾何性質,指出了poisson基函數與有理bernstein基函數之間存在的關系,並且將解析函數的taylor逼近與poisson逼近進行比較。實例表明,對于在無窮遠處極限為0的函數以及有界函數, poisson逼近比taylor逼近效果要好。
  4. The derived dry bulk modulus must be positive and greater than 2 / 3 of shear modulus to insure a positive lame constant and poisson ' s ratio

    提取的乾燥體變模量必須為正,並且大於剪切模量的2 / 3 ,以保證拉梅常數和泊松比為正。
  5. The cyclo - hoop effect which steel tubular has exert to the concrete shows the character of heterogeneous in the arch rib section, the same to the axial direction. the paper verifies the change of the material poisson ration and the concrete grade will make the cyclo - hoop effect obvious alteration, the change of the cyclo - hoop effect and the stress redistribution of the section produced by the shrinking and creeping of the concrete and the expensive concrete on the section

    在鋼管混凝土拱肋斷面上,鋼管對內填混凝土的環箍效應具有非均勻性,在拱軸方向上環箍效應也呈現非均勻性。驗證了材料的橫向變形系數、混凝土標號等參數的變化將引起環箍效應的明顯改變;混凝土的收縮、徐變和膨脹混凝土的應用導致鋼管混凝土的環箍效應發生變化並使截面的應力發生重分佈;並總結了其變化的基本規律。
  6. To see what error was engendered in the process, we now allow ni to differ from ne and use the linearized poisson equation.

    為了研究在這個過程中引起了多少誤差,我們讓ni與ne不相同,並用線性化的泊松方程。
  7. Algebraic method of solving nth moment of poisson and binomial distribution

    分佈和二項分佈高階矩的代數方法
  8. The establishment of poisson demand prognosticating model bases on the analysis of the regularity of the aircraft spare part

    通過對航材需求規律的分析,建立了泊松需求預測模型。
  9. Based on the understanding of netative poisson ratio mechanism and the characteristics of liquid crystalline polymers, the ability for the smectic liquid crystalline polymers possibly to bear the auxetic behavior was firstly proposed. at the same time the ideal molecular model was upbuilt and the calculation about the negative poisson ratio of smectic liquid crystalline polymers was theoretically carried out

    經過對負泊松比產生機理和液晶高分子特徵的理解,首次提出了近晶c相液晶高分子也具有產生npr效應的能力,建立了近晶c相液晶高分子產生負泊松比的分子模型,並且對其負泊松比進行了理論計算。
  10. Method of undetermined function for finding special solution to poisson equation

    方程特解的待定函數解法
  11. Poisson ' s ratio inversion based on avo forward modeling

    正演模擬的泊松比反演
  12. During the research of the novel high - voltage soi lateral structure, we established its blocking theory based on poisson equation, which classifies its blocking mechanism by describing the potential distribution in the drift region very well when the device is in the blocking state

    在新型橫向高壓器件結構tsoi的研究中,本文通過二維泊松方程建立其解析理論,正確描述了漂移區中電場的分佈,並闡明其耐壓機理。
  13. In addition, the test results also demonstrate that bond - slip response between angle steel and concrete foundation in tension could be reflected with the displacements between angle steel and concrete, because bond stress is obviously decreasing with the cross section shrinking, that is effects of poisson ' s ratio

    另外,試驗結果還表明:在一定的拉應力下,插入角鋼與混凝土之間的粘著力能通過插入角鋼與混凝土之間的位移反映出來。這是由於橫斷面的收縮,使得粘著應力明顯降低,即泊松比效應。
  14. In response to masters timely gifts, the montreal center received a thank - you note from mrs. jean paul poisson of chesterville, expressing her sincere gratitude, especially for her financial help. please refer to the letter of appreciation below

    蒙特利爾小中心因此收到來自奇斯特爾市的波爾森太太的感謝函,在信中她特別感恩師父的即時禮物,特別是致贈她們慰問金請參考文後的感謝函。
  15. The research aims at the demonstration and the mend of the design on the new purifier and presents a calculation method for solving the two - phase flow in fluid machine by the finite element method. after analyzing the two - phase flow in the new purifier by means of the continuum model, poisson equation, navier - stokes equation and continuous equation are derived and solved by using the finite element method. the solution on pressure, velocity and particle concentration simulates the departure well between oil and water, which proves the accuracy of the design on the new purifier

    本文採用兩相流連續介質模型,由兩相分離流動理論得到控制方程,採用chorin的直接速度-壓力mac法的思路,對新型油水分離裝置內油水兩相流動作了細致的分析,同時首次把科氏慣性力引入兩相流模型中,進行分析和計算,將研究擴展到三維,並用有限元法分別解poisson方程、 n - s方程、連續方程的方法,對流場內壓力場、速度場、濃度場進行了分析和計算,較好地模擬了新型油水分離裝置內油水分離的現象,證明了設計方案的正確性。
  16. C., and wang ( 2001 ) studied common shock risk model in which the two claim number processes are both poisson processes by transforming into classical model

    Andwang ( 2001 )研究了相關索賠次數都是poisson過程的風險模型,這種情況可轉化為經典情況來研究。 yuen , k
  17. Global classical solution of schrodinger - poisson problem

    問題的整體古典解
  18. Based on the fact of generating the synthetic data using poisson distribution function and exponential distribution function, the performance of hy algorithm and the comparison among hy algorithm, apriori algorithm and dhp algorithm is experimented. these experiments include the one that compares the execution time using variant synthetic data and variant minimum supports, and the scale - up one that compares the execution time using variant transaction number and variant item number in synthetic data. finally the results of the experiments are analysed

    在構造基於泊松分佈函數和指數分佈函數的合西南交通大學碩士研究生學位論文第iii頁成數據的基礎上,對hy演算法的性能及其與apriori演算法和dhp演算法的比較進行了實驗,這些實驗包括針對不同的合成數據和不同的最小支持度,對各演算法的執行時間進行比較的實驗以及針對合成數據的不同的事務數和不同的項數對各演算法的執行時間進行比較的規模實驗,並對實驗結果進行了分析,反映出hy演算法具有良好的性能。
  19. The macro model of drift region resistance was established based on the solution of poisson ’ s equations and continuity equations. by the combination of spice mos ( level = 3 ) and the macro model, the complete dddmos model was then obtained, which accords well with simulated data. by simulating and comparing different devices of different process parameters, the model is applicable for different bias regions and can be useful in the power integrated circuit research in future

    首先介紹了器件建模的基本原理及相關模擬技術,然後利用工藝模擬軟體生成器件基本結構,並對其基本特性進行了分析;分析了業內和學術界比較通用的高壓器件建模的方法,隨后在模擬實驗的基礎上著重分析了dddmos的物理特性,在求解泊松方程、連續性方程等基本方程的基礎上,建立有物理意義的漂移區電阻的宏模型;隨后結合spicemos ( level = 3 )模型而得到完整的dddmos模型,此模型與模擬數據符合得比較好,通過對不同工藝參數的器件進行模擬比較,該模型能夠覆蓋不同的工作偏壓范圍,具有較明確的物理意義,對今後的功率集成電路的研發有一定的參考意義。
  20. Based on the analysis of thin sections by microscope, measurement of porosity and density, and geological setting, we tested the rock physical parameters of sandstone, siltstone, carbonate and other transitional sedimentary rocks by the mts system under formation conditions ( temperatures, pressures and pore fluid properties ). the rocks we tested are from tertiary ( including zhujiang formation, zhuhai formation, enping formation, hanjiang formation ) of zhujiangkou basin in southern china sea. according to the analysis results, we studied the main ultrasonic wave velocity characters of rocks, which are compressive and shear wave velocity and poisson ' s ratio under different formation conditions

    在對珠江口盆地第三系儲集巖進行顯微鏡薄片分析、孔隙度和密度分析,以及地質背景分析的基礎上,利用巖石物理參數測試系統( mts )模擬地層條件(溫度、壓力和孔隙流體狀況)測試了珠江口盆地第三系(包括珠江組、珠海組、恩平組、韓江組,以下有關討論同)砂巖、粉砂巖、碳酸鹽巖及其過渡性巖石物理性質,重點研究了不同地層條件下巖石的聲學特徵(巖石的縱橫波速度和泊松比) 。
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