理論分佈 的英文怎麼說

中文拼音 [lúnfēn]
理論分佈 英文
theoretical distribution
  • : Ⅰ名詞1 (物質組織的條紋) texture; grain (in wood skin etc ) 2 (道理;事理) reason; logic; tru...
  • : 論名詞(記錄孔子及其門徒的言行的「論語」) the analects of confucius
  • : 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
  • 理論 : theory
  1. 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格局基本呈聚集,其中7個種群的格局類型是聚集,其聚集強度較高,另有一個種群為隨機;其種群的離散擬合結果也嚴格符合一定的數學模式,其中負二項、 poisson別是該物種種群空間理論分佈模式,其中6個種群擬合出的結果是負二項,種群i和種群m擬合出的結果是poisson
  2. It focuses on the theory of the mineral functional materials " improving the anti - chloride permeability and the chloride binding. the main achievements of this article include : 1 ) use the technology of xrd, sem, bet, laser particle size distributor etc to test the component, the construction, particle size distributor, specific surface etc of micro - silica, ultra - fined slag, high quality fly ash, meta - kaolin clay, four types of the mineral functional material, theoretically analysis the functions which the four mineral functional minerals act on cement concrete, namely pozzolanicity effect, filling effect, micro - aggregate effect, surface adsorption effect and so bring into play the affect of plastification, lowing of temperature, reinforcement, improvement of durability. base on this analysis we can conclude that the proper diameter of the mineral functional material is 5 m - 15 m, that is blain fineness 4500cm2 / g - 7500cm2 / g

    文的主要成果包括以下幾個方面: ( 1 )採用xrd 、 sem 、 bet 、激光粒度析儀等多種測試手段,探明了以硅灰,超細磨粒化高爐礦渣,優質粉煤灰及偏高嶺土超細粉等4種超細礦物功能材料的組成、結構、粒度、比表面積等基本性質;從析了礦物功能材料在混凝土中的4種效應,即火山灰效應、填充密實效應、微集料效應、表面吸附效應,並由此發揮出增塑、溫峰削減(降熱) ,增強及耐久性改善等作用;通過相關析,推導出礦物功能材料的合粒徑范圍在5 m 15 m ,即勃氏比表面積為4500cm ~ 2 g 7500cm ~ 2 g 。
  3. Part 3 tentatively studies the cladistic of 22 genera occurring in china and all the works are finished by using hennig 86 software which is provided by dr. wei of central south foresty university. the followings are the descriptions of 6 new species. 1

    區系析部就中國大葉蟬亞科種在世界6大動物地以及在中國7個動物地區的進行了統計和歸納,就有關方面的問題進行了討
  4. Firstly, by numerical and theoretical analysis, the author compares some existent confidence intervals, for example, " exact " confidence interval, wald confidence interval and bayesian confidence interval, and finds some deficiencies points of the confidence intervals, whose modification version has been proposed. also, several better confidence intervals such as are also presented. secondly, for given confidence coefficient and interval width, the author constructs a class of asymptotical two - stage interval estimate procedures. at the same time, under varies restriction of confidence coefflcientent interval width, the optional sample size of the first stage has been computed by numerical computation. the numerical computation shows that the method considered in this dissertation have good properties and applied value

    同時,由於poisson的特性,我們知道不存在其參數區間長度小於0 . 5的置信區間,基於這些情況,我們主要展開了以下兩個方面的研究:一是利用數值計算析與析的方法對現有的若干置信區間如「精確」置信區間, wald置信區間, bayes置信區間等進行析比較,發現了一些缺陷,針對這些缺陷,我們進行適當的修正,並得到幾種性質較好的置信區間如:修正大樣本區間jeffreys原則下置信區間二是針對已給定的置信系數與區間長度,我們提出了一種漸近的兩階段區間估計程序,並利用數值計算的方法,在各種置信系數與區間長度限定下,算出了最優的第一階段觀測次數(抽樣量) ,大量數據表明,本文考慮的方法性態良好,具有應用價值。
  5. Due to the randomicity, diversity and complexity of distribution of meteorite strike event, the real distribution of plagioclase is pretty complicated, but it is based on the theoretical distribution

    由於地球表面隕擊事件的隨機性、多樣性以及復合性,有關斜巖實際的情況比較復雜,但都以理論分佈特徵為基礎。
  6. This paper have studied some questions which included distributed load, lapped length, becoming less crowded purlins each other in the lap joints, mechanic analysis, lateral buckling and ultimate load - carrying capacity and construction of double purlin in the lap joins. according to result of test and analysis of theories, the author advances the suggestions, which may be a reference to steel structure design

    文章對z型連續搭接檁條荷載、搭接長度、搭接嵌套松動、側向穩定以及構件極限承載力和雙檁條的構造等問題進行了研究,並根據試驗結果和析提出了建議。
  7. Aberration of electronic lens made by electron gun and aberration of magnetic deflection system made by dy are comprehensively investigated, so is the shadow mask ' s effect on electron beam landing screen error. the conclusion can be get that, because the distribution of electron beam landing screen ( distribution of luminance ) is affected by many kinds of factors, it cannot get the correct function by calculation, and should be get by measurement instead

    全面析了cpt電子槍發射系統形成的電子透鏡像差與磁偏轉系統形成的偏轉像差;析了蔭罩的自身厚度與位移對電子束著屏的影響,並由此得出結,著屏電子束(即亮度)受著許多因素的影響,析是半定量的,著屏電子束需要用精確的測量儀器來測量。
  8. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討,取得以下主要成果:一、結合小灣工程導流洞改建,對高水頭( 252m ) 、大泄流量( 1400m ~ 3 s )條件下旋流式豎井中的水流運動特徵進行了比較全面的測量,包括空腔形態、徑向流速及井壁壓強等;二、提出了豎井空腔段螺旋水流水力計算方法,其計算結果與實測值吻合良好;三、利用試驗與計算結果,對旋流式豎井的消能機進行了探討,對豎井各部的消能能力有了總體認識;四、對豎井下部消力井的合井深進行了優化試驗研究,發現消力井合深度為0 . 9d左右;五、通過試驗研究,歸納出豎井水流總摻氣量估算方法,為導流洞排氣方案的設計提供了參考依據;六、在高水頭、大流量條件下,豎井空腔段下部流速很高,盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓,但空化數依然較低,因此豎井的空化空蝕始終是工程界關注的重大問題。
  9. The theoretical analysis shows that any human activities, responsible for the changes of rock, air, water, soil and biology inside or outside the caves, will influence inevitably cave animals in terms of such levels as molecule, cell organelle, cell, tissue, organ, system, individual, population, society and ecosystem. these effects can be observed on cave animal ' s shape - building, activity, tissue structure, metabolism, space - time distribution, biothythm, structure of population and society, food chain, bio - relation, diversity of population and society, and function of the above - mentioned levels

    析表明,凡是能夠引起地表和洞穴巖石、空氣、水、土壤、生物等變化的一切人類活動都不可避免地使洞穴動物在子、細胞器、細胞、組織、器官、系統、個體、種群、群落和生態系統各級層次上產生效應,這些效應具體表現在影響洞穴動物形態建成、行為、組織結構、新陳代謝、時空、生物節律、種群和群落結構、食物鏈結構、生物關系、種群和群落多樣性以及各層次所表現的功能的多少、快慢、強弱等方面。
  10. However, the speed of penetration is equal to predicted value by fluid theory only in c + + plasma with uniform density profile. on other conditions, strong two - dimensional effects, electrostatic accelerating, magnetic pressure and plasma pressure should be included in the fluid analysis

    不過,值得注意的是僅有均勻的c ~ ( + + )等離子體條件下,磁場滲透速度與簡化流體析結果基本相同,而其它條件下的磁場滲透速度均與結果存在一定的差異。
  11. Secondly, the static stress and strain characteristic of polymer - geogrid reinforced earth is summarized, the pulling stress distributing of the reinforced material in the earth walls, the interface characteristeric between the reinforced material and earth and the friction stress distributing between the reinforced material and earth are analysed

    然後,總結了塑料土工格柵加筋土靜應力應變特性的一般析了塑料土工格柵筋材在擋墻中的拉應力和塑料土工格柵與土的界面特性以及筋土間摩擦應力的
  12. In this paper, some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data. the cross section of compound channel can be divided into four regions : the undisturbed region in main channel, the interactive region between channel and plain, the undisturbed region in flood plain and the boundary region. in the undisturbed regions, the distribution of longitudinal velocity along the depth has the feature of lograithmic. whereas, in the interactive region, the longitudinal velocity does not obey the logarithmic distribution law, but it can expressed as a revised logarithmic function by using a wake function. on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained. in the boundary region, the longitudinal velocity obeys the law of parabolic distribution. furthermore, according to the simplified diffusion equation, the transverse distribution of sediment concentration in the interactive region is deduced. the analysis is in good agreement with the measured data

    本文根據漫灘水流的運動特點,將漫灘水流的復式斷面為主槽平衡區、灘槽交互區、灘地平衡區及邊壁區等4個區,並給出了各區寬度的經驗公式.根據灘槽交互區垂線流速的變化特點,提出了附加尾流函數的對數流速公式.在簡化水流運動方程和泥沙擴散方程的基礎上,對灘槽交互區內垂線平均流速及含沙量沿橫向進行了析,提出了反映灘槽水流動量交換強度的橫向渦量粘性系數及橫向擴散系數的表達式,得到了漫灘水流垂線平均流速及含沙量沿橫向的解析解,並與實測資料吻合較好
  13. In the experiment, we use the he - ne laser and the semiconductor laser as the source, record the bessel beam patterns behind the axicon by using a digital camera and a microscope, measure the radius of the bessel beam central spot by film - scanning and measure the effect of both the radius of the aperture and the open angle of the axicon on the maximum non - diffraction distance. the experiments show that a specific propagating range has constant power and the beam has a bessel - like distribution in this range. the results agree with the beam corresponding to a diffraction free beam

    同時我們還採用膠片掃描的方法測量了無衍射光束的中心光斑尺寸,測量了不同光闌孔徑和不同稜角情況下的最大無衍射距離和傳播軸附近橫截面內微小光孔中的光強,實驗結果顯示當激光光束經過軸棱錐轉換後有一段距離功率變化很小,且近似貝塞爾,符合無衍射光束的特性;經過聚焦后,呈現三維中空的光束bottlebeam ,實驗結果與析基本吻合。
  14. The verification results show that the theoretical analysis of nozzle is correct, the curve of the nozzle contour satisfies the design requirements, and the designed nozzle has reached the general industry criterion

    給出了流場的馬赫數和出口截面的馬赫數。校核結果表明噴管析正確,噴管型面曲線符合設計要求,噴管設計達到行業標準。
  15. Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed

    本文在總結和析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上,以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對流傳熱為物模型,通過攝動方法和有限體積法,首次對各種截面(圓截面、橢圓截面、環形截面、矩形截面)旋轉曲線管道內充發展流動的流動結構和傳熱特性(包括耦合對流傳熱特性)以及旋轉曲線管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和析,詳細討了各種無量綱參數對管道內軸向速度、二次流結構、溫度、壁面摩擦力、摩擦系數比以及管道nusselt數的影響,獲得了若干創新性成果。
  16. Theory and technology of agent originally come from distributed artificial intelligence ( dai ), with the development of the research of dai, some new research fields appear such as coordination theory, distributed reasoning, the learning and communication language between the agents

    Agent與技術研究最早源於散式人工智慧( dai ) ,隨著傳統的人工智慧研究的深入,出現了協商、 agent之間的學習和通訊語言等新興的研究領域。
  17. All the algorithms are implemented in c. to assess the performances of the algorithms, we first apply theoretical distribution and use pseudo - random function to generate some synthetic datasets, on which experiments are then performed to find hybrid association rules

    所有演算法均用c實現。為驗證演算法的有效性,我們根據理論分佈,使用偽隨機函數生成了若干數據集,進行了關聯規則挖掘實驗,並對實驗結果進行了析。
  18. The minimum square method was used in regressing analysis for the result of treatment in a supposed distribution function, the " d " examination method was used for weibull distribution and index distribution, and obtained the distribution type in the life of the main shaft bearings, appraised the reliability life, the mean life and the reliability in 500hours of the main shaft bearings with theoretical distribution function

    用殘存比率法、平均故障法和累積故障法對主軸軸承可靠壽命進行了評估,用最小二乘法對現場數據統計處結果進行了假設的回歸析,並用d檢驗法對威布爾和指數進行了檢驗,得出主軸軸承壽命類型。利用理論分佈函數,對主軸軸承可靠壽命、平均壽命、 500小時的可靠度進行了評估。
  19. Base on the ideal sampling theories, fiber length distributions and figrogram of samples taking from the ideal sliver by actual sampler are studied, and factors affecting the distributions curves are researched into, some basic requests and references of sampling are concluded for the future developing of sampler

    摘要在想的截面取樣基礎上,進一步研究了具有一定寬度的取樣夾持器以一定角度從「想棉條」中取樣時試樣的理論分佈及照影機曲線,並結合實驗析了取樣影響因素;根據研究結果得出了棉纖維長度測試的取樣要求,為取樣器的進一步開發提供了參? 。
  20. In this background mobile agent appears, which quickly becomes the hotspot in many fields such as computer software engineering, computer parallel theory, distributed object technology and network computing environment etc. this paper fully studies the different aspects of mobile agent by answering the five questions as follows : ? what is mobile agent and mobile agent system

    移動智能體技術就是在這一背景下涌現出來的新課題,得到了計算機軟體工程、計算機並發對象技術、網路計算環境等諸多領域研究人員的廣泛關注。本文的工作即圍繞移動智能體的方方面面深入展開,主要探討了以下五個問題:什麼是移動智能體與移動智能系統( whatismobileagent
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