第一近似 的英文怎麼說
中文拼音 [dìyījìnsì]
第一近似
英文
first approximation-
The first approximation would make everything depend on the capitalized money value of the individual's prospective receipts.
第一種近似意義是以個人預期進款的資本化的貨幣價值為其中心。A. teel, d. nesic etc. initially studied iss stabilization of nonlinear sample - data systems of this type in 1998. practical stabilization of nonlinear sampled - data systems based on discrete - time approximation with sufficiently small sampling periods has been studied in recent years. the sufficient conditions have been given for the practical st abilization of the above case
第三部分:在采樣周期固定的條件下,研究基於近似離散化模型上設計的關于參數t一致的漸近穩定采樣控制器能夠以漸近穩定方式一致鎮定其連續受控系統的條件。The fundamental ideas and methods of this paper are also illuminated in this chapter. in chapter two, a one - dimensional and semi - closed shallow sea mode is studied. the approximate analytical expressions of the water level at the top of the bay induced by the nonlinear interaction between the storm surges and the astronomical tides are obtained by using the perturbation method
在第二章里,研究了一維半封閉水域中的非定常風暴潮與天文潮非線性相互作用的問題,用攝動方法求出了具有實際意義的海灣頂部增水水位的一階近似解析表達式,並給出了增水過程曲線。Thirdly, a unified colored - noise approximation is applied to calculate the steady state distributions of the dispersive optical bistability when the fluctuations in the amplitude and phase of the incident field are considered as colored noise
色散光學雙穩系統是本文研究的第三種光學模型。當入射光中的強度漲落和位相漲落分別看作色噪聲時,我們用統一色噪聲近似得到它們的定態強度分佈。A special critical parameter method was used to derive the approximate expression of the second upto sixth virial coefficient at critical temperature
3採用一種特殊的臨界參數法導出了第二至第六維里系數在臨界溫度下的近似表達式。At the last, in accordance with the evaluation, the total loads are allocated to each sub - district. the third is fuzzy - logic - based approximate reasoning method which can consider weights in the premise in rules and a denazification decision - making function
鄭州大學碩士論文摘要第三、基於模糊邏輯和近似推理的訣策方法:該方法是一種在知識不完備情況下,能夠考慮推理前提重要性的、基於模糊邏輯的近似推理和決策的新方法。In this paper, we studied the deterministic mechanism of isi with the unstable period orbit ( upo ) ; we tested many isi data from different model with the method of approximate entropy ( apen ) to study the method which is used in testing the degree of complicacy of isi and we built up a system including hardware and software for our lab to view and record action potential, firing frequency and isi in real time. results 1. spontaneous firing patterns were observed from neurons of supraoptic nucleus ( son ) in hypothalamus with the method of patch clamp
本研究通過對大鼠視上核神經元自發放電的非穩定周期軌道的計算,討論了isi的確定性問題;利用近似熵的方法對多種神經放電的isi資料進行了復雜度的測量,討論了這種方法在isi的復雜度測量第四軍醫大學碩士論文中的應用;另外,還開發出一套記錄原始放電和isi的程序,解決了採集isi的問題。The relativistic random phase approximation ( rrpa ) is a relativistic extension of the random phase approximation for studying microscopically nuclear dynamical excitations and giant resonances. the consistency of rrpa calculations requires two aspects : first, it demands that the relativistic mean - field wave " function of nucleus and the particle - hole residual interactions in the rrpa are calculated in a same effective lagrangian. second, the consistent treatment of rrpa within rmf approximation requires the configurations including not only the pairs formed from the occupied fermi states and unoccupied stat es but also the pairs formed from the dirac states and occupied fermi states
自洽的相對論無規位相近似理論的自洽性要求有兩方面的內容:第一,描述原子核的激發態性質和基態性質時必須從同一個有效的拉矢量出發;第二,相對論無規位相近似計算,不但要考慮正能的粒子-空穴組態的貢獻,而且還要考慮從fermi海核子態到dirac海負能核子態形成的對激發的貢獻。In chapter 2 there are four goals : the first is to investigate some geometric properties of h - caccioppoli sets, the second is to characterize the discontinuous set su and jump set ju of u bvh ( ), the third is to study pointwise behavior of u bvh ( ) and our effort is concentrated on showing approximate differentiability of u in the sense of pansu ' s, while the last and the most important is to show that dhu with u bvh ( ) as a radon measure can be split into three parts ( absolutely continuous part, jump part and cantor part, respectively ) just like the derivative of a bv function in the setting of euclidean space
第二章有四個目標:一是討論h - caccioppoli集的若干幾何性質,二是刻畫h -有界變差函數的近似不連續點集和跳躍點集的特徵,三是研究u bv _ h ( )的逐點行為,我們集中討論u在pansu意義下的近似可微性,最後也是最重要的目標我們證明對u bv _ h ( ) , d _ hu作為radon測度能夠分解成絕對連續部分、跳躍部分和cantor部分之和。In section 2. 2, by a priori estimates and fourier spectral method, we prove the existence and uniqueness of the global smooth solution for the periodic initial value problem and obtain the large time error estimate between spectral approximate solution and the exact solution. in sections 2. 3 and 2. 4, by a priori estimates and galerkin method, we prove the existence of the global smooth solution and global attrac - tors for the initial - boundary value problem. chapter 3, consider the initial - boundary value problem of the multidimen - sional non - homogeneous gbbm equations
第二章,考慮一類一維非齊次bbm方程,在第二節中利用fourier譜方法和先驗估計證明了具有周期初值問題的整體光滑解的存在性和唯一性,給出了fourier譜近似解和精確解的長時間誤差估計;在第三、四節中討論了初邊值問題,利用與時間t無關的一致先驗估計,證明了整體光滑解和整體吸引子的存在性。In the last decade of their grandeur, englishmen seemed for the first time to become conscious of what before was taken for granted.
英國人在他們鼎盛的最近十年中,似乎第一次對于以前熟視無睹的東西有了認識。From the study results it is showed that turret hole position near the forward of the midship has less effect to the ship girder strength and it is more reasonable using probabilty statistics method to estimate the extreme value of wave bending moment, by which the first approximate value of hull midship section modulus can be determined
研究結果表明:轉塔開孔位置在舯前附近對船體總強度影響不大;波浪彎矩極值用概率統計方法估算更為合理;船體結構剖面模數的第一近似值可用波浪彎矩設計極值等來確定。The first aspect is about the distribution function for fermions in quasi - equilibrium qgp which is perturbed by the fluctuation of the color field. neglecting the affect of the spin and the collision between the particles in qgp, the distribution function for fermions in quasi - equilibrium qgp has been obtained. further more, the physical " basses that decide the departure factor are analyzed
第一,從qgp動力論出發,忽略自旋和碰撞效應,得到qgp在色場漲落擾動下偏離平衡態而處于近平衡時的分佈函數的二級近似以及偏離因子的物理表示,進而分析了決定偏離因子的物理因素。The long axises of miniature pigs teeth are 6. 1 in the upper first molar, 6. 5 in the lower first molar, 7. 3 in the upper third premolar, 3. 8 in the lower third premolar
結論小型豬咀嚼肌的形態、起止點、肌力方向都與人類有較大的相似性;第三前磨牙與第一磨牙長軸為近中傾斜,與人類第一前磨牙和第一磨牙近似。Firstly, based on a modified lyapunov function and the approximation capability of the first type fuzzy systems, two new design schemes of decentralized adaptive fuzzy controller for two class of similar multivariable nonlinear continuous systems with a triangular matrix function control structure is proposed in this paper, respectively
本文首先對兩類結構相似的具有下三角形矩陣函數控制增益的多變量非線性連續系統,基於一種修改的李亞普諾夫函數,並利用第一類模糊系統(即具有線性可調參數的模糊系統)的逼近能力,分別提出一種分散自適應模糊控制器設計的方案。Concerned the discrete area of the steel shape, a method is presented : searching the best solution of continual variable first by criteria, and next searching optimal solution by the direct - searching method of mixed variable on the original point of the continual result
慮到型鋼截面的離散化,本文對多層輕鋼框架結構優化提出一種近似的處理方法,即先用準則法求得連續變量最優點,然後將其結果作為混合變量直接搜索法的初始點進行第二步優化。This thesis will present a new simple method to calculate the seismic response of the framed structures. this method calculates the effect of the first and second modal vibration. the first modal shear force of every floor distributes according to the shape which is close to the first modal shape
本論文提出了一種新的計算框架結構地震作用效應的簡化方法,考慮前兩個振型的作用,對于第一振型的各層剪力,按照近似於基本振型的形狀分佈,第二振型各層剪力引用廖河山提出的方法計算,然後用將兩個振型的剪力「平方和開平方」的方法,計算得到各層剪力(總效應) 。I took the first photograph below at 10 a. m., 8 february 2006 near the observatory s headquarters in tsim sha tsui, showing clouds over kowloon which resemble a pair of flying saucers. these clouds are called " lenticular clouds "
以下第一張相片是我在2006年2月8日早上10時在尖沙嘴天文臺總部附近拍攝,可見九上空出現兩團類似飛碟的雲,我們稱這種雲為莢狀雲。The method of multiple scales is used to determine the equations of modulation of amplitude and phase. the steady state response can be obtained by solving a couple of algebraic equations, which have been achieved by careful deduction under some conditions. and because of the complexity of the equations, programs are necessary to solve the equations mentioned above, and certain graphs are presented. based on chapter two, in chapter three, the method of multiple scales is introduced to the study of the multiple - dimensional nonlinear stochastic systems under random external excitation
在第二章基礎上,第三章將多尺度法引入到相應的隨機系統的研究中;嚴格推導了系統的約簡方程,用矩方法求出穩態解應滿足的方程,獲得一些結果;並且數值模擬結果與理論推導的結果是一致的;並注意到,與其對應的確定性系統相比較,系統響應從周期解變為近似周期解,系統的相軌線從極限環變為擴大的近似極限環;隨著激勵帶寬的增大,此擴大的近似極限環的寬度將增大。Criteria for the nonlinear dynamic stability of rotative vehicles are derived by the liapunov ' s first method and the routh - hurwitz stability criterion, this criteria can be applied to the dynamic stability analysis of controlled rotative missiles, projectiles and rockets
應用李亞普諾夫第一近似理論和勞斯霍爾維茨方法導出了旋轉飛行器的非線性運動穩定性判據,這個判據可應用於有控旋轉導彈的運動穩定性分析,也可應用到炮彈和火箭彈上。分享友人