number distribution function 中文意思是什麼

number distribution function 解釋
分子數分佈函數
  • number : n 1 數；數字；〈pl 〉算術。2 （汽車等的）號碼；第…，第…卷，第…期〈通常略作 No （復數 Nos ），用於...
  • 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...
  • function : n 1 功能，官能，機能，作用。2 〈常 pl 〉職務，職責。3 慶祝儀式；（盛大的）集會，宴會。4 【數學】...
  1. From the aspects of agricultural economic and environmental ecological effects, were the effects and mechanism of rare - earth micro - fertilizer to improve the growth, development, quality and yield of the crops ; the adjustment of crops growth by influencing the number of microbial population in soil district and the function of the soil dehydrase, alkaline phosphatase, urease and sucrase ; the ecophysiological effects of alleviating the injure of acid rain, ultraviolet radiation, heavy metal on crops were illustrated ; the sureness of bee ' s use in agricultural was provided, according to the rule of the distribution and enrichment of be in crops

    摘要從農業經濟效應和環境生態效應二方面，論述了稀土肥料促進作物生長、發育，提高作物產量，改善作物品質的效應與機理；影響土壤區系中微生物種群數量和土壤脫氫酶、堿性磷酸酶、脲酶及蔗糖酶的功能，繼而反饋調節作物生長；緩解酸雨、紫外輻射和重金屬傷害作物的生態生理學效應；並以稀土在作物體內分佈與富集規律為參考，探討了稀土農用的安全性。
  2. In the chapter two we discussed that the server would first use speed - 1 to serve customers when the system entered the busy state from the empty state, but when the server found the number of customers in the system exceeded the thresh - n during serving, after finishing the service of current customer it would use speed - 2 to serve the next customer till there is no customer. by the method of supplementary variable, l - transition and constructing vector markov, we attained the distribution of the queue length, the distribution of wait - time, the distribution of stay - time, the utility and etc. in the last part of this chapter, we discussed the optimal n * for thresh n which minimizing the cost function and we illustrate the cost function behaves for various parameter selections by a numerical study

    在本文第二章討論了當系統從空閑進入忙期時是服務臺以速度1進行服務，但一旦對某顧客服務完畢時如發現系統中的顧客數超過n值時就以速度2服務后續顧客直到系統變空的可修排隊系統，通過構造各種向量馬氏過程和吸收向量馬氏過程，獲得了瞬態、穩態隊長分佈、等待時間分佈、逗留時間分佈、更新周期分佈等一系列排隊指標以及可用度、可靠度等一些可靠性指標，在本章最後又從系統如何更好節省費用角度出發討論了門限n的最優取值問題，並利用mathematic軟體對費用函數進行了數值模擬。
  3. 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。
  4. Based on vibration principle, the paper establishes dynamics analysis model of output shaft with elastic support, according to fourer series spread principle of periodic function, the dynamic response formula is derived by separating complex vibration force into sum of many simple harmonic excitation function of whole number times frequency relations. the result shows that response of both sides support is synchronous when load distribution non - uniform coefficient is 1

    依據振動理論建立了具有彈性支撐的輸出軸的動力學分析模型，根據周期函數的傅里葉級數展開原理，將復雜的激振力分解成為多個頻率成整倍數關系的簡諧激勵函數，導出了動態響應表達式，結果表明，當載荷分配不均勻系數為1 . 0時的輸出軸兩端支撐同步。
  5. In connection with the difference and distribution characteristic of the samples in sample space rs based on dga, a new self - adapted weight fuzzy omean clustering model of fault diagnosis of the power transformer based on the potential function is proposed. meanwhile, from the aspect of geometry characteristic of fc - divided in s dimension sample space, a method is proposed for the purpose of getting an effective adjacent radius, adaptive cluster number c and original cluster center of x sample set. for the diagnosis sample x, the property measure and diagnosis rule are proposed, which under the condition of potential density function that determine c number of optimal fuzzy cluster p1

    根據以變壓器dga數據為特徵量的樣本空間各樣本差異特性以及樣本在空間r ~ s的分佈特性，首次提出了基於勢函數自適應加權的變壓器絕緣故障診斷的模糊c -均值聚類模型；同時，從s維樣本空間的f ~ c -劃分幾何特性出發，提出了一種求取樣本集的類勢有效鄰域半徑和自適應求取聚類數和聚類中心初值的方法；對一個待診斷樣本，設計了基於類勢密度函數意義下的屬性測度和診斷準則。
  6. It is proved that as the number of insured tends to infinity the average prospective loss random variable of this portfolio tends in probability to a certain random variable of which the approximate distribution function is derived

    證明了當保單數趨于無窮多時，平均損失變量按概率收斂于某一個隨機變量，推導得到了該隨機變量的近似分佈函數。
  7. The wax is provided with appropriate isomerization alkane content and reasonable carbon number distribution, and also with wonderful adhesion that it can keep fine protective function for a long time with a wider centigrade arrange, which can be used on manufacturing semi or all - steel radial tire, diagonal tire and other rubber substances, especially being fit for radial tire

    該防護蠟具有適宜的異構烷烴含量和合理的碳數分佈，並具有極好的附著性，可以在較寬的溫度范圍內長期保持良好的防護性能，可用於半鋼和全鋼子午線輪胎、斜交輪胎及其它橡膠製品，尤其適用於子午線輪胎。
  8. The number density distribution of globular cluster in space will change with time due to the dynamic evolution, especially for those in the central region of the galaxy ; 5. for the power law initial cluster mass function, the peak value of the mass function after the dynamic evolution is sensitive to the lower limit of the initial mass function we adopt. the suggested value in this paper is - 104m, which is consistent with that reduced from the dynamical analyses for the giant molecular clouds

    對于冪率的初始質量譜，球狀星團系統動力學演化后質量分佈的轉折點質量主要是由初始質量函數的質量下限決定的，最為適合的值為10 ~ 4m _ ；冪率的初始質量譜的譜指數對球狀星團系統動力學演化后質量分佈的轉折點質量也有影響，其最佳值為1 . 5 2 . 0 ；經過大約5gyr的動力學演化，冪率的初始質量譜就會演化成為高斯的對數質量分佈並具有在隨后的動力學演化中保持對數高斯形式質量分佈的特性。
  9. 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。
  10. On the basement of the quantitative analysis about the relationship between the rural industrialization and urbanization in gansu, the following conclusions have been drew in this paper ( 1 ) the development of town and township enterprises is the important driving force during the process of gansu ' s rural urbanization, and this point has been drew easily from the regression results showing that there is strong correlation ship between indexes about the urbanization process and ones about the development of town and township enterprises ; ( 2 ) nowadays the town and township enterprises ' driving on the rural urbanization of gansu ' s counties and restricts has seemed quite limited, because in the correlate analysis with the datum in 2003, the coefficient between the employment number of town and township enterprises and the urbanization level is only 0. 058 ; ( 3 ) there is no well mutually driving relationships between the rural industrialization and urbanization in gansu greatly because of the many existing problems such as too small business scale, capital shortage, low technique level, low quality of employees, imperfects of system etc. in the development of the town and township enterprises and the many deflects such as small scale, scattered distribution, signalized function etc. in the development of small towns

    在對甘肅農村工業化和農村城鎮化的關系進行定量分析的基礎上，得出結論： （ 1 ）鄉鎮企業發展是甘肅農村城鎮化的重要推動力（回歸結果顯示城鎮化進程的指標和大部分鄉鎮企業發展的指標間存在著很強的相關關系） ； （ 2 ）現階段鄉鎮企業在全省各縣區城鎮化進程中的作用已相對局限（在對2003年截面數據的相關分析中鄉鎮企業就業人數和城鎮化水平之間的相關關系極其微弱，相關系數為0 . 058 ） ； （ 3 ）甘肅鄉鎮企業發展中存在的諸如經營規模過小、資金短缺、技術層次低、從業人員素質低以及體制制度方面存在缺陷等一系列問題和小城鎮發展中存在的規模過小、建設檔次低、布局分散、職能趨同性強等問題致使鄉鎮企業發展和農村城鎮化發展在現階段沒有能很好地相互推動和促進。
  11. We implement the traffic generator by these studies. the thesis focuses on how to generate abundance flow, how to send flow fastly, how to measure network, how to synchronize flow sender and flow receiver. we use some solution to resolve the problems, including that using linear congruential and modifying select - giveup algorithm to generate random number, implement class that has good application interface to user, making random number as packet ’ s inter - departure - time and packet size, which can provide flow base on special distribution, designing and implementing a method to active measure by our traffic generator, designing a accurately time counter and precision delay function, synchronizing flow sender and receiver by tgm message

    通過對現有技術的研究和改進，我們形成的解決方案如下:通過利用改進的線性同余演算法，以及對舍選法進行研究和改進，實現了一個具有良好應用介面的隨機變量生成器，利用其產生的隨機數作為發包的間隔或包的尺寸，以產生服從特定模式的流;利用傳輸的數據包設計並實現了網路的主動測量，為網路測量和流的發送設計了高精度的計時器，精確延時函數;利用自定義的tgm報文協調發送端和接收端的操作。
  12. With the help of rs, gis, gps, the interpreted maps of 1985 and 2000 remote sensing images overlay the digitized soil map to get the area of very kind of soil that the city covered during its progress of urbanization. the function of gis are elaborated, such as managing spatial data and attribute data, spatial analyzing and outputting ultimate maps to get the reduced number of nanjing population carrying capacity and its spatial distribution because of the expansion of city

    利用rs 、 gis和gps技術，對南京市1985年和2000年遙感圖像解譯，得到南京市城市擴展圖，把擴展圖和南京市土壤圖疊加；充分發揮gis技術在管理空間、屬性數據和空間分析與輸出成果圖等強大功能，計算出南京市由於城市擴展而使人口承載力減少的數量及其空間分佈。
  13. In mfi, the thesis uses the bottom reflection phase shift as the cost function and the modal wave number as input data. also, it makes errors analysis by the statistical distribution between data errors and parameter errors. there are some new ideas in it

    論文在使用匹配場反演方法反演海底參數中以海底反射相移曲線作為代價函數，模式波數作為輸入數據，同時利用統計分佈進行誤差分析，具有一定的新意。
  14. 2. according to distribution characteristic of recipes, a recipe fuzzy cluster algorithm based on kernel - function was presented. firstly one recipe kernel - function was defined to represent recipe class, through minimizing all the distance of recipe samples to recipe class kernel, recipe samples were classed. the class number was gave out and each recipe was gave membership degrees belong to each classes

    2 、根據配方的模式分佈特點，提出了一種基於類核函數的配方模糊聚類演算法，定義一個配方類核函數來代表配方類，通過最小化所有配方樣本到配方類核距離加權和來對配方進行聚類，得到聚類數目及模糊隸屬度矩陣。
  15. Number distribution function

    數量分佈函數
  16. To model the elastic properties of rocks with distribution fractures, a new heterogeneous anisotropic constitutive model was presented. in this model, the autocorrelation function is used to describe the spatial distribution of crack number density

    提出一種新的非均勻各向異性本構模型來模擬具有分佈裂縫的巖石，在這個模型中用自相關函數來描述裂紋數密度的空間分佈。
  17. The transport of macromolecules in curved tubes with permeable arterial wall was simulated numerically. the fields of axial velocity, the fields of secondary flow function and the distribution of wall shear stress along the transverse section of arterial wall were obtained under different dean number, 10

    10800 ，計算了彎曲血管內的二次流軸向速度場和剪應力沿管壁分佈的情況。計算求得了在不同dean數和peclet數下，其中10
  18. As examples, heterogeneous anisotropic fractured rocks of which the autocorrelation functions of crack number density can be described as 2 - dimensional exponential ellipsoidal or gaussian function were simulated especially. the results show that : 1 ) the random distribution characters could be different for different elastic constants under the same random distribution of crack number density. 2 ) the exponential ellipsoidal heterogeneous anisotropic random fractured model could be a suitable model for the multi - scaled and self - similar heterogeneous media

    模擬結果表明： 1 ）彈性常數的分佈特徵與裂紋數密度的分佈特徵不相同，並且裂紋數密度對不同的彈性常數有不同程度的影響； 2 ）指數橢圓型隨機裂縫模型適用於模擬具有多尺度、自相似的特性非均勻裂縫巖石； 3 ） gaussian型隨機裂縫模型適用於模擬單尺度、平滑的非均勻裂縫巖石。
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