time derivative 中文意思是什麼

time derivative 解釋
按時間的導數
  • time : n 1 時，時間，時日，歲月。2 時候，時刻；期間；時節，季節；〈常pl 〉時期，年代，時代； 〈the time ...
  • derivative : adj. 導出的；派生的。n. 1. 派生物。2. 【語言學】派生詞。3. 【化學】衍生物。4. 【醫學】誘導法[劑]。5. 【數學】導數，紀數，微商。adv. -ly
  1. On one hand, numerical derivatives provide proper search directions in optimization, therefore their accuracy is of great importance for fast convergency. on the other hand, derivative evaluation is one of the most time - consuming steps in optimization

    當前的高性能數學規劃演算法大都依賴于導數計算以快速收斂到最優點，所以對求導精度的要求比較高；而導數計算所消耗的時間占優化時間的比例又非常的大。
  2. At first, this paper presents two - demensional quartic convolution interpolation to smooth digital terrain. it is acquired from that it makes use of that the interpolation function of cubic spline interpolation has a continuous third derivative on the base of two - dementional cubic convolution interpolation. two - demensional quartic convolution interpolation is more precise than two - dementional cubic convolution and simpler than cubic spline interpolation in calculation. it can satisfy real - time route planning of ucav

    首先，在軌跡規劃前需要對數字地圖進行平滑處理，本文提出了二維四次卷積插值法。它在二維三次卷積插值法的基礎上利用三次樣條插值法的插值函數具有三階連續導數的性質而得來的。
  3. To the large - scale atmosphere, we separate the terms of the horizontal vorticity converting into the vertical vorticity, which considered as the baroclinic terms, from the terms that not including horizontal vorticity by the rules of the p coordinate transforming to the z coordinate in the traditional vorticity equation, and carry out the scale analysis, and then conclude that the baroclinic terms are able to reach the same magnitude grade as the partial derivative of the vertical vorticity to time when it takes place the large scale precipitation in the summer monsoon period in china. by analyzing the game reanalysis data from april to august in 1998 in the region of chinese continent, we found that the baroclinic terms is important to the large - scale cyclone developing above the 600hpa, and the magnitude changing of the baroclinic terms is nearly in - phase as the monsoon movement, so which imply exactly that the magnitude changing of the baroclinic terms is the one of the natural characters of the summer monsoon evolution and equivalent to the movement rule of the subtropical high of the western pacific

    在p坐標垂直渦度方程中，利用p坐標向z坐標轉換的公式將水平渦度向垂直渦度轉化的所有項分離出來，這些項具有明顯的斜壓特徵，對其進行尺度分析后，得出在可以忽略潛熱釋放對渦度影響的對流層中、高層，此轉化項是大尺度斜壓渦度發展的重要項。通過對1998年48月的game再分析資料進行實際計算也發現，轉化項在東亞夏季風上升支的600hpa及以上層次對垂直渦度的局地變化貢獻很大，不能忽略。同時發現水平渦度向垂直渦度的轉化在南海季風爆發時和江淮梅雨入梅及發展過程中均有指示性意義，在南海季風爆發以後，在中國東南部地區，轉化項的大小與夏季風的活躍和中斷等活動有著幾乎一致的變化規律，這從側面也指出了，此轉化項的變化是夏季風演變所具有的本質特徵，並且它反映出了西太平洋副高在中國大陸的活動情況。
  4. The integral calculus formula is deduced, in which the first derivative of physical measures of system with respect to time equals the partial derivative of physical measures of control field to time plus clear flux of physical measures passing the control line within unit time

    推導出交通流系統所具有的物理量對時間的全導數的積分公式，即系統內物理量對時間的全導數等於控制域內該物理量對時間的偏導數與單位時間經過控制線的該物理量的通量之和。
  5. Finally a set of equations with initiate values for boundary value problem is established where the velocity potential and its normal derivative are unknowns. because the model includes the effects of both the time and space to the velocity potential of free surface, it can be applied to strong nonlinear wave. as examples, solitary wave is computed in the numerical flume

    推導給出計算域內以所有節點波勢函數和波面位置高度的時間增量為未知量的線性方程組，並同時考慮時間因素和空間變位對波面勢函數的影響，在預設的計算精度下，通過時步內的循環迭代逐一確定每個時步上的波面運動位置，從而建立了一種可適于求解強非線性波浪變形計算的數值模式。
  6. Commonly, breakthrough and leap - over model occurs antecedently, derivative development model happens afterwards and orbit - followed upgrade model run through all the time, of course this sequence is of comparatively sense

    一般來說，企業跨越式平臺創新武仁幾理二大學體d匕學位論文在前，衍生式開發在後，階梯式升級貫穿始終，當然這種順序只具有相對的意義。
  7. ( 3 ) the dissertation puts forward the financial reports what adapt the derivative financial instruments, namely. decompose the derivative financial instruments to the basic financial instruments and bring it into the financial reports by force in the correlation standards. at the same time, the corporation what has the business of the derivative financial instruments should add a sheet that adapts the special requisite of the derivative financial instruments, and explain it particularly in the financial reports annotations

    （ 3 ）提出了適合於衍生金融工具的財務報告形式，即將衍生金融工具交易分解成基本金融工具，在相關準則中強行將其納入財務報表，同時，發生了衍生金融工具交易的企業增編一張適應衍生武漢現工大學碩士學位論文金融工具特殊需要的報表，並在財務報表附註中對其進行充分說明。
  8. Nonholonomic constraint means that the constraint equation contains the time derivative of the systematic generalized coordinates, which are not integrable

    非完整約束是指約束中含有廣義坐標的導數，且這些導數不全部可積。
  9. The convertible bond is a derivative securities on the basis of stock and bond. the determination of its price is complicated and difficult because < wp = 7 > of its specific clause stipulation. for example it can be resold can be redeemed within term of validity, and possess the characteristics of multiple option ahead of time etc. actually it was comparatively difficult to price option, so it is almost impossible to fix the price accurately for the convertible bond which includes the multiple option

    可轉換債券是在股票與債券基礎上的衍生證券，它的價格決定更為復雜且難以具體確定，之所以如此，都緣于其特定的條款規定上，比如在有效期內可以< wp = 3 >贖回、可以回售、可以提前實現轉換等具有多重的期權特徵，本來期權定價就較為困難，而可轉換債券又包含多重期權，事實證明給可轉換債券精確定價幾乎是不可能的事。
  10. Seek the b ( t ) fieldwork curve and the time derivative curve dbz ( t ) / dt from the voltage decrease data generalized from field current that eliminating noise treated by wavelet ; 3

    由經過小波消噪處理過的野外歸一化的電壓衰減數據求出b _ z （ t ）實測曲線和它的時間導數曲線（
  11. Through simulation and calculating the four models, the influence on proportion coefficient, integral time constant, derivative time constant and partial feedback coefficient for system performance is analyzed. the ideal reference value of every parameters and step respond curves are given. the simulation result may be used as reference for making analogue controller or digital controller

    通過對這四種模型的模擬研究，分析了各模型中比例系數、積分時間常數，微分時間常數及局部反饋系數對系統性能的影響，並給出了各參數較為理想的參考值及階躍響應曲線，模擬結果對製作模擬控制器及數字控制器有一定的借鑒作用。
  12. In this dissertation, we study some stability properties for two impulsive differential systems employing lyapunov ' s second method : one system is impulsive hybrid differential system : the other is differertial system with impulses at variable time : herein these stability results do not require a lyapunov function to have a negative definite first derivative along trajectories of the system, further we may not require its derivative to restrict the function increasing growth ; and we do not give conditions on continuous portion or discrete portion of the systems respective ! } ", hence we can give mixing conditions on them

    在這篇碩士學位論文中，我們主要藉助lyapunov第二方法的思想，討論了兩類脈沖微分系統：脈沖混合微分系統和具有依賴于狀態脈沖的微分系統的穩定性問題。不同於以往的研究，本文所找的lyapunov函數沿系統軌線的一階導數不再局限於常負或定負，甚至不用其導數來限制其增長速度；不再局限於對離散或連續部分分別設置條件，而是對其離散和連續部分設置混合條件。
  13. The appearance of the financial derivative has facilitated the financial transaction, and reduced the transaction cost, while improving operational efficiency of the finance, but at the same time its speculativeness and high risk has already caused the extensive concern of the international community by a series of financial incidents that it brought about, therefore understanding the meaning and characteristic of the financial derivative, analyzing the cause of the finance derives origin and precaution of the financial derivative ' s legal risk in trade is very important

    摘要金融衍生工具的出現方便了金融交易，降低了交易成本，但在提高金融運行效率的同時，由於其高投機性和高風險性的特點以及由其誘發的一系列金融事件已引起國際社會的廣泛關注，因而了解金融衍生工具的含義和特徵，分析全融衍生交易中的法律風險成因並進一步探索如何對其進行法律風險防範有著極其重要的意義。
  14. The osmotic pressure test was developed to determine the unknown, finite strain consolidation coefficient and convection coefficient in the mathematical model. the two coefficients both varied with effective stress and depth and were functions of initial void ratio, compressibility, permeability and permeability derivative along depth. a precise time step integration method was proposed to solve the finite strain osmotic consolidation equation with varied coefficients

    設計滲壓固結試驗確定理論模型中的待定系數有限應變固結系數和有限應變固結對流項系數，這兩個系數均為隨有效應力和土層深度變化的量，並且體現軟土初始孔隙比，壓縮性、滲透性及其沿深度變化等因素的綜合影響。
  15. Derivative action time

    微分作用時間
  16. At the same time, the domestic and international practice proving that as a new financial derivative, the stock option can mobilize the enthusiasm of the executive, and prevent the short - term behavior

    國內外的實踐證明，作為創新金融衍生工具的股票期權，能夠調動經營者積極性，防止經營者短期經營行為，降低企業激勵成本。
  17. Then in section 2 we discuss the elliptic problem which has time derivative on the boundary condition and obtain the corresponding regularity estimate which is quoted in chapter 3

    第二節討論邊界條件含有時間方向上導數的橢圓問題，並且得到相關的正則性估計，其結果在第三章中被引用。
  18. Then it may be generally applied in engineering. we note that it is the first time that the o ( h6 ) cionvergence of the derivative at nodes is achieved by this technique for bicubic finite element, which is proved in the third chapter

    注意到利用這種恢復技術對雙三次矩形元我們第一次在節點處獲得了導數的o （ h ~ 6 ）強超收斂率，本文第三章給予了理論證明。
  19. A 0. 85um - or 1. 3um - led - lighted fiber optic humidity sensor based on a film of 40 ~ 100nm in thickness self - assembled on the end face of the fiber can work in the range of 1 ~ 100 % rh with a response time less than 1s. this novel humidity sensor can be used for monitoring human breathing - conditions. organic molecules including congo red, a derivative of copper phthalocyanine and a fullerol were self - assembled with polymers into multilayer thin films, and organic molecules with more than 4 charged groups exhibited satisfactory features for multilayer self - assembling

    聚電解質pdda -聚染料ps - 119體系具有很好的自組裝性，多層復合膜無明確的層狀結構特徵，在宏觀上表現出單層光學塗層的特性，單層膜的厚度在納米量級且與聚電解質水溶液的濃度有關；薄膜具有濕敏特性，在光纖端面上組裝厚度為40 100nm的薄膜，採用0 . 85 m或1 . 3 m的led光源，可以製成光纖濕度傳感器，傳感器的工作區間為0 100 rh ，響應時間1s ，可以用於對人的呼吸監測。
  20. Under the existence of barrier strips, the existence theorem is established for the following boundary value problem on time scales by using properties of derivative on time scales

    在存在障礙帶的假設下，建立了時間尺度上的邊值問題解的存在性定理其證明依賴于時間尺度上導數自身的性質
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