variation equation 中文意思是什麼

variation equation 解釋
變分方程
  • variation : n 1 變化，變動。2 變量，變度，偏差。3 【語言】語尾變化；變體，異體；【數學】變分，協變；順列；【...
  • equation : n. 1. 平衡，均衡；平均，相等。2. 【數學】方程式，等式。3. 【天文學】（時）差；均分，等分。4. 【化學】反應式。
  1. The variation of the return rate constant k with different absolute temperature t deviates arrhenius empiric equation

    反應速率常數隨絕對溫度的變化基本上符合阿累尼烏斯定理。
  2. ( 4 ) finally, the ginzberg - landau equation is considered. by the ansatz method, the chirped femtosecond solitonlike solution is given, and the stability of the solutions are studied in detail by linear stability analysis with variation method. also the long - distance stability of the ultrashort pulse and the interaction between the solutions are also discussed by numerical method

    （ 4 ）討論描述超短光脈沖傳輸的高階ginzberg - landau方程，給出該方程的啁啾類孤波解，並利用變分法解析地討論啁啾類孤波解的線性穩定性，同時研究這種類孤波解的長距離穩定性和相互作用。
  3. Basic equation for variation of bed material composition in active layer of alluvial river

    沖積河流混合活動層內床沙級配變化的動力學基本方程
  4. Variation principle of piezothermoelastic bodies, canonical equation and homogeneous equation

    壓電熱彈性體的變分原理及正則方程和齊次方程
  5. Velocity variation is positively correlated with crust thickness and negatively correlated with earth ' s heatflow. the linear regression equation of velocity, crust thichness and heatflow is obtained. the regression coefficient dv / dp convert

    同時地震波速廠與地殼厚度h呈明顯的線性正相關關系，與大地熱流呈負相關關系，並得到三者的線性回歸方程，回歸系數dv dh換算成bv op ？
  6. Neglecting the influence of some factors, such as liquid ' s viscidity etc., upon the process of empty bubble breaking, the authors analyze the pressure variation on bubble ' s wall in all directions when it shrinks, and deduce the equation of its moving track towards the rigid side wall under the function of asymmetry pressure

    摘要通過對忽略液體粘性等一些因素對空泡潰滅過程的影響，分析了空泡在收縮過程中，泡壁四周壓強的變化，得出空泡在此不均勻壓強的合力作用下向剛性邊壁運動的軌跡方程。
  7. Using ncep / ncar daily reanalysis data and scsmex data, an investigation is carried out of the relationship between the position variation of the west pacific subtropical high ( wpsh ) and the apparent heating in june 1998 based on the complete vertical vorticity equation

    摘要採用ncep / ncar再分析逐日資料和scsmex等資料，根據全型垂直渦度傾向方程，研究了1998年6月西太平洋副高位置變動與大氣熱源的關系。
  8. The additional resistance caused by sediment transport of bed - load and suspended load is derived from mean energy equation of sediment - laden flow, and the variation of resistance in sediment - laden flow is discussed

    從挾沙水流的平均能量方程出發，得到了推移質附加阻力的計算公式及懸移質附加阻力計算公式，並對挾沙水流的阻力進行了討論。
  9. But the variation of its aerodynamic forces will induce flapping motion and produce the cyclic pitch on the main rotor blades by the bell mixing mechanism. in order to study the effect of bell - hiller stabilizer bar on helicopter stability and control, this paper first analyze the function and the principles, give the flapping equation and a flight dynamic model with bell - hiller stabilizer bar. and then works over the stability and control of uav r - 50 in hover and cruise condition, and analyzed the influence from parameters of the bar to it

    為了深入研究希勒伺服旋翼對直升機穩定性和操縱性的影響，本文首先分析了希勒伺服旋翼的功能和工作原理，推導了伺服旋翼的揮舞運動方程，建立了帶有希勒伺服旋翼直升機的飛行動力學模型，然後以yamahar - 50無人直升機為例，分析該直升機在懸停和前飛時的平衡、穩定性和操縱性，在此基礎上進一步研究希勒伺服旋翼設計參數變化對直升機穩定性和操縱性的影響。
  10. Based on the observation data such as coads and soda, the main climatological features of the tropical indian ocean and relationships of sea surface temperature ( sst ), heat budget with ocean dynamics and thermodynamics processes are analyzed ; the seasonal and interannual variability of the tropical indian ocean are well simulated using a ocean general circulation model ; based on the thermal equation and model output data, the variation mechanism of sst and heat budget are investigated in the tropical indian ocean ; besides, the effect of seasonal variation of wind stress, ekman pumping and horizontal diffusivity on the ocean current and heat budget are studied, using both ideal model and complex model

    本文根據coads 、 soda等實際觀測資料，較全面的分析了熱帶印度洋主要的氣候特點，並研究了海表面溫度（ sst ） 、熱收支與海洋動力、熱力過程的聯系；利用全球海洋環流模式較好地模擬出熱帶印度洋的季節和年際變化；基於熱力學方程和海洋環流模式輸出結果，探討了熱帶印度洋sst和北印度洋熱量收支的季節和年際變化機制，進一步揭示了海洋動力過程在北印度洋熱平衡中的重要作用；在此基礎上，利用理想化的數值試驗與數值模擬結果相結合的方式，證實了風應力的季節變化和ekman抽吸，以及水平熱量擴散系數對北印度洋海洋環流和熱收支的影響。
  11. The seasonal variation of the mean meridional circulation and the double - level structure of the hadley circulation are analyzed by the two methods. the paper also studies the zonal difference of the anomalous meridional circulation and the impacts of el nino / la nina events on the local meridional circulation anomaly. conclusions are drawn as follows : 1, the hadley circulations in both hemisphere and the position of their joint uprising branch move wholly with the heat equation, with most north in july and most south in january

    然後用簡化方法分析了氣候平均經圈環流的季節變化，論文還對hadley環流的雙層結構和異常經圈環流的緯向差異以及elnino 、 lanina事件對局地經圈環流異常的影響作了研究，結果表明： 1 ，北、南半球hadley環流圈及其共同上升支的位置隨熱赤道作整體性移動， 7月最北， 1月最南。
  12. The experimental results of the flow characteristics of the mmc heat sink indicate that the critical reynolds number signifying the transition from laminar flow to turbulent flow is in advance ; under the same experimental conditions, the variation in entrance direction of the microchannel inlet and outlet has little effect on the microchannel ; the experimental values of the friction factor of the de - ionized water in a microchannel agree well with those calculated using the theoretical laminar formula ; furthermore, a comparison of the experimental results and simulation results shows that navier - stokes equation and rng - turbulence model can be used to model the laminar and turbulence flow regions in a microchannel ; meanwhile, the correlations of the flow resistance in the turbulent flow regions for the de - ionized water as the working fluids are obtained from experiments

    對歧管式單通道熱沉流動特性的研究結果表明，微通道內流體流態由層流向紊流轉變的臨界雷諾數提前;改變流體的進出口方向對熱沉總壓降造成的影響很小;摩擦系數的實驗值與理論值較接近;數值模擬結果能夠與實驗值較好吻合;並由實驗給出了紊流區流動阻力的實驗關聯式。此外，選用十二烷基硫酸鈉（ sodiumdodecylsulphate ， sds ）以及烷基多糖苷（ alkylpolyglycoside ， apg ）作為減阻添加劑，研究了表面活性劑添加對微通道流動特性的影響。
  13. Abstract : based on two order approximation of the variation of refraction index produced by self - action while optical pulses are traveling in kerr - medium, the propagation equation has been solved. furthermore, the strict analytical expressions of the amplitude, width and chirp parameter of chirped gaussian pulse, relative to the propagation distance, are deduced. the solitary wave traveling conditions of fundamental mode gaussian pulse have been discussed

    文摘:將光脈沖在克爾介質中自作用產生的折射率變化作二階近似，求解所得到的傳播方程，得到啁啾高斯脈沖幅度，脈沖寬度和周啾參數隨傳播距離變化的嚴格解析解，討論了基模高斯脈沖孤波傳播的條件。
  14. Abstract : the wave equation, continuous equation for tower structure and the method of characteristic line, are derived in this paper, and variation of structure modulus of elasticity with strain and vibration frequency being considered, state of stress on the structure affected by earthquake wave is analyzed

    文摘:推導了高聳結構（桿件）波傳播運動方程、連續方程和特徵線求解方法.並考慮結構彈性模量隨應變及振動頻率的變化，對地震波作用下結構的受力狀況進行了分析
  15. Based on the theory of stochastic finite element, the structural parameters of frame - shear structure including stiffness and mass and damping are simulated to be stochastic variables. by solving recurrence equation of stochastic finite element, the duration curve of mean value and standard deviation of seismic response can be obtained for every floor of frame - shear structure. an analysis is thus given to the effects of independent variation and simultaneous variation of structural parameters on the seismic dynamic response of frame - shear structure. as shown by the results, with regard to frame - shear structure, the effect of variation of strucural parameters on the change of mean value are chiefly the increase of standard deviation of response. variation of stiffness will cause the response of frame - shear structure to variate greatly ; variation of mass shows less effect ; and variation of damping shows insignificant effect. the effects of simultaneous variation of various structral parametres on seismic response are only slightly greater than the effect of stiffness variation alone

    以隨機有限元理論為基礎，將框剪結構的剛度、質量、阻尼等結構參數為隨機變量.通過求解隨機有限元的遞推方程，得到框剪結構各層的地震動力響應均值和標準差歷時曲線.分析結構參數單獨變異，以及同時變異對框剪結構地震響應的影響.研究結果表明，對框剪結構而言，結構參數的變異對響應的均值變化影響都不大，主要是增大響應的標準差.剛度的變異性將引起框剪結構的響應發生大幅度變異，質量的變異性影響稍小，阻尼的變異性影響不顯著.結構各參數的同時變異，對框剪結構地震響應的影響，僅比剛度單獨變異的影響稍大
  16. A variation equation problem on singular stochastic control

    奇異型隨機控制中的一個變分方程問題
  17. Considering the fuzziness of some boundary conditions enviroment media, and especially some loads in the engineering structure analysis, we go further into the computation based on the dynamic problem of fuzzy finite element ( ffe ), study further and systematically the analysis and solution. the principle of fuzzy minimum potential energy is established, and the balance equation of fuzzy finite element is reasoned by making fuzzy variation. at the same time, the dynamic balance equation of stochastic by making stochastic variation ， also the fuzzy stochastic dynamic balance equation is deduced. based the theory that the degree of the fuzziness and probability can be measured, in the other word, by using the concept of fuzzy entropy and entropy, pure fuzzy dynamic structure is given through transforming the probability to fuzziness. for the fuzzy parameter can be regarded as a fuzzy vector with dimensions, the structure ' s eigenvalue, by the theory of small parameter

    建立了模糊瞬時最小勢能原理，運用模糊變分原理導出了模糊有限元動力平衡方程；同時，利用隨機變分原理導出了動力問題的隨機有限元方程，同時得到了模糊隨機動力問題的有限元平衡方程。根據模糊度和概率度可以度量的原理，即利用模糊熵和概率熵的概念，把結構的隨機性等效地轉化為結構的模糊性，得到純粹模糊性的動力結構。把結構所具有的模糊參數看作一個維的模糊向量，利用小參數攝動原理，把結構的特徵值，特徵向量和位移都在模糊向量的均值處進行泰勒展開，得到一組遞歸方程，即可以求得結構的模糊特徵值，特徵向量和模糊位移。
  18. A solution of linear nonhomogenous differential equations has been found out on the basis of using the idea of parametric variation and an integral of the linear homogenous differential equation ' s parameter solutions

    摘要利用參數變動法的思想，通過已知滿足初始條件的齊線性方程（組）含參量特解，給出了非齊線性方程（組）特解的一般積分表示。
  19. These phenomena can be well characterized by two or multiple stages exponent formulation. permeability variation equation and it ' s solution at three boundary conditions has got in laplace domain

    建立了滲透率變異控制方程，並利用laplace變換求得了該方程三種邊界條件下的的拉氏空間解析解。
  20. This paper discusses a variation equation problem in a class of singular stochastic control with stopping time, gives its solution under two different conditions, which is a one order continuous differentiable and concave function, and gives the exact form

    摘要討論了一類帶停時的奇異型隨機控制問題中的一個變分方程問題，並且在兩種不同的情況下給出了該變分方程的解，即為一階連續可導凹函數，並在兩種情況下給出了此函數的具體形式。
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