approximate estimate 中文意思是什麼

approximate estimate 解釋
概算估（計）價
  • approximate : vt 1 使接近。2 接近；走近。3 近似，約計。4 模擬。5 估計。vi 近於。 His income this year approxima...
  • estimate : vt 1 估計，估算；估價；估量。2 評價，評斷。3 〈古語〉尊重。vi 估計，估價。n 1 估計;預測；〈英國〉...
  1. 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。
  2. With the thorough research on these and computer ability increasing quickly, people are paying more and more attention to relational numerical study. the mostly discussion is how to numerical simulate, concering error estimate in long - time, the existence of approximate attractor, well - posedness of solution and numerical solution and dimension estimate and so on, now there are much study [ 5 ], [ 15 ]. spectral method is important numerical method, but it is very hard so that research is a less

    隨著對它研究的深入和計算機能力的迅速提高，與之相關的數值研究也越來越被人們關注，這方面討論的主要是對原系統如何進行數值模擬的問題，涉及到大時間誤差估計，近似吸引子的存在性，穩定性，收斂性及其維數估計等諸多問題，目前已有很多工作。
  3. 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。
  4. Inequality to estimate calculus and approximate computation

    一類函數積分的估值公式與近似計算
  5. By constructing approximate functions and using prior estimate and conversion of variable, it is proved that the inverse problem has weak solution for given initial value, boundary value and the oil output

    通過變量和函數變換，作逼近函數和估計等方法，證明了對給定的初邊值和石油產量，此反問題存在弱解。
  6. Note : 1. population figures are approximate, based on the monthly population estimate of december 1, 2004 compiled by the ministry of internal affairs and communications ( population eligible for driver ' s licenses = 108. 7 million persons )

    注：人口數量引用總務省統計局「人口估算月報」中的截止到2004年12月1日的估算值（駕駛執照適齡人口為108 ， 680 ， 000名） 。
  7. We introduce some marks and lemmas before we construct chebyshev rational spectral formation of semi - discrete with respect to space. then we obtian the error estimate for the approximate solution and the existence of approximate attractor an, and besides, we prove the upper semi - continuty on the global attractor

    在引入一些本文所需的記號和引理之後，通過建立chebyshev關于空間方向的半離散有理譜格式，證明了方程近似解的誤差估計，以及在此格式下近似吸引子a _ n的存在性，並且得到關于原方程整體吸引子的上半連續性。
  8. Typical categories are 1 - 3 days, 3 - 10 days, or greater than 10 days. a rough order of magnitude estimate establishes an approximate cost for a scenario or quality of service requirement

    通常的分類為1 - 3天、 3 - 10天或10天以上。通過粗數量級估計可獲知某方案或服務質量要求的大致成本。
  9. A popular solution toimprove the speed and scalability of the association rule mining is todo the algorithm on a random sample instead of the entire database. buthow to effectively define and efficiently estimate the degree of errorwith respect to the outcome of the algorithm, and how to determine the samplesize needed are entangling researches until now. in this paper, an effective and efficient algorithm is given based on the pac probably approximate correct learning theory to measure and estimatesample error

    關聯規則挖掘作為數據挖掘的核心任務之一，由於其任務本身的復雜性通常需要多次整個掃描數據庫才能完成挖掘任務且頻繁模式可能產生組合爆炸，使得從原始的大規模數據集上抽取一部分樣本，在其上尋找用戶感興趣的近似規則成為目前提高演算法效率和可擴展性的一種簡單有效的現實可行方法之一。
  10. Researches the basis watermark managing works particularly and systemly. there are many works to do on watermak technology except watermark embedding and extraction arithmetics such as the watermark choosing, encoding, modulating, demodulating and the watermark capacity. these prior and ultimate works ensure that the arithmetic is brought into effect. just understanding these, this paper analyses and researches the basic watermark theoretics in many pages. it brings forward chaos modulation on watermark modulating, brings forward chaos permuting on image permuting, introduces bch encoding on letter watermark processing and discusses the approximate estimate of the watermark capacity in dct domain and dwt domain by applying the current communication theoretics. there works not only extend ways for the later work but also are significative on watermark research

    全面系統地研究了水印信號的處理技術數字水印技術除了水印嵌入和提取的演算法外，還有許多工作需要做，如水印的選碼、編碼、調制、解調、能量的確定等等，這些預處理和后處理工作是演算法有效實施的必要保證，正是基於這樣的認識，本文利用較大的篇幅對水印的基本理論知識進行了詳細的分析和研究，在水印的調制方面，提出了混沌調製法；在圖像水印的置亂方面，提出了混沌置亂法；在文字水印的處理上，引入了bch編碼；在水印容量分析方面，結合現代通信理論，對圖像在dct域和小波域內的水印容量估算進行了詳細的探討，這些工作不僅為本文後期工作鋪平了道路，而且對數字水印的研究具有重要的意義。
  11. It ' s the first time clearly and systematically to present the concepts of restraint influence coefficient of steel to strain increment, to curvature increment and to deflection increment due to creep which are different each other. theoretical formulae are established, and approximate formulae are also obtained while considering the characteristics of common - used concrete and ambient condition of real bridges in china. so, an approximate restraint influence coefficient method to analyze the effect due to creep and shrinkage in pc bridges is put forward, and the equations to estimate second - force due to creep considering influence of steel in system - transferred continuous pc bridges is also established

    本文首次清晰而系統地提出了鋼筋對徐變的不同效應（徐變應變、徐變曲率、徐變上拱）約束影響系數的概念，建立了相應的計算式；結合我國普遍採用的混凝土的徐變特性和橋梁的構造特點及工作中南大學博士學位論文摘要環境特徵，給出了具有較高計算精度的實用計算式;在此基礎上，建立了橋梁徐變效應近似分析的鋼筋約束影響系數法，並推導出了考慮鋼筋影響的超靜定梁徐變次內力的近似計算式，可方便地應用於橋梁研究和設計中。
  12. Approximate maximum likelihood estimate and inverse monent estimates of the parameters of the tampered failure rate model for the weibull distribution in a step - stress accelerated life test

    總定數先定時截尾情況下簡單步進應力加速壽命試驗的優化設計
  13. According to the different anticipated damage degree, the network output makes an approximate estimate of the length of structure use

    根據不同的預期破壞等級，網路的輸出給出了結構使用壽命的近似估計。
  14. The estimate value of hensheng index, although its price earning ratio is approximate 21 times, is lower than the peak level of u. s. stock marketduring i. t. bubble times

    恆生指數的估值（市盈率大約21倍）依然低於美國股市在網路泡沫時期的峰值水平。
  15. In capter 2, it is proved that the system possesses a global attractor and a two - side estimate for the fractal dimension of it is presented. in capter 3, several different approximate intertial manifolds of the system are constructed by applying linear galerkin method, method of projecting operator and operator eigenvalue and successive iterative method, and it is proved that arbitary trajectory of the system enters into a small neighbourhood of the global attractor after large time. capter 4 studies the asymptotic attractor of the system by constructing a solution sequence which approaches to the global attractor of the equation in long time, and the dimentional estimate of the asymptotic attractor is given

    第二章證明了該系統的整體吸引子的存在性，給出了其分形維數的上下界;第三章利用線性galerkin方法、運算元投射和運算元特徵值方法及逐次迭代方法構造了幾類近似慣性流形，證明了該方程的任意解軌道在長時間后進入整體吸引子的任意小鄰域;第四章構造了一個有限維解序列即該系統的漸近吸引子，證明了它在長時間后無限趨于方程的整體吸引子，並給出了漸近吸引子的維數估計
  16. However, two - stage estimates of regression coefficients corresponding to these two estimates have approximate equal mean square error. for testing linear hypothesis about regression coefficients, banerjee and magnus ( 1997 ) studied the sensitivity of f - test sta, tistic ( fgls ( ) ) based on generalized least square estimate caused by variance parameter in general case and proposed sensitivity statistic and its distribution

    關于回歸系數的線性假設檢驗問題， banerjee和magnus （ 1997 ）在一般情況下從理論上研究了方差參數對基於廣義最小二乘估計的f -檢驗統計量（ f _ （ gls ） （ ） ）的種種影響，提出了敏感性的概念，並給出敏感統計量的形式及其分佈。
  17. According to an approximate estimate,

    根據大約估計，
  18. According to approximate estimate, there are more than ninety intersections along these five loops. thus, this paper takes jinsong intersection for example, anatomizes the existent problem, and finds out

    因此，下面將以勁松平面信號交叉口進行典型研究，剖析此類平面信號交叉口存在的問題，以期找出提高其通行能力的對策。
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