higher approximation 中文意思是什麼

higher approximation 解釋
較高階近似
  • higher : adj 〈high 的比較級〉較高的；高等的。 higher command 【軍事】＝ high command higher criticism 聖...
  • approximation : n. 1. 接近；近似。2. 【數學】近似值。3. 概算，略計。
  1. Use of higher roots of (8. 88) in (8. 85) gives approximation to excited state wave function.

    將（888）中的高值根用於（885），給出激發態波函數的近似。
  2. Secondly, the effectiveness and limitation of the classical perturbation, such as the method of multiple scales and the poincare - lindstedt method, are discussed in detail through a duffing oscillator with delayed velocity feedback. it is shown that the two perturbation methods are effective only in solving the approximate solution of the first two orders. an ambiguity or paradox will be encountered when they are used to seeking for the third or higher order approximation of solution

    其次，以一具有時滯速度反饋的duffing系統為例，研究了經典攝動法如多尺度法， poincar - lindstedt法等在求解時滯微分方程級數解時的適用性和局限性問題，指出利用這些方法只能有效求得系統的前兩階近似解，而在求系統的三次以上近似解時會出現矛盾或二義性。
  3. A control method is presented where least square arc approximation and timed interpolation are employed. using it, the number of segments of fitted curves is made minimum while the accuracy is guaranteed, so that data transmission between cad and cnc systems is decreased and setted feeding rate can be realized. this method has already success fully been used for flame cutting and controlling saddle - backed curve for pipe connection when feeding rate is required to be higher

    提出了一種採用最小二乘法圓弧逼近及定時插補控制方法，在保證精度的前提下，可使擬合圓弧段數最少，從而減少cad系統與cnc系統的數據傳送，可實現給定進給速度.該方法已成功地應用於要求較高進給速度的接管馬鞍型曲線火焰切割擬合控制
  4. In order to describe a higher degree of smoothness, the fourth part has investigated the extended results of pointwise approximation of bernstein operators with the help of linear combinations of bernstein polynomials and properties of modulus of smoothnes s

    第四部分為了刻劃高階光滑性，利用bernstein運算元的線性組合和光滑模的性質，討論了bernstein運算元點態逼近的更廣泛結果。
  5. Simulations results demonstrate the optimized model has a higher approximation to the objective system than does the previous one. next, fuzzy controller for the supply system is designed as follows : first, the structural decoupling is performed to formally decompose the 2 - input 3 - output controller as three 2 - input single - output ones, which greatly simplifies the design of the fuzzy controller. second, rudimentary control rules are identified and then improved by trial - and - error adjustment

    進而，本論文又研究設計了供水系統的模糊控制器：首先採用結構解耦的方法，把兩輸入三輸出模糊控制器形式化地分解為三個兩輸入單輸入的模糊控制器，這樣就大大簡化了模糊控制器的設計，接著採用模糊辨識方法得到初步的模糊控制規則，並通過進一步的調試使控制規則得以完善。
  6. The biorthogonal multi - scaling vector with higher approximation order was constructed using tst

    利用雙尺度相似變換構造了高逼近階的雙正交尺度向量。
  7. They can possess all properties simultaneously such as short support, orthogonality, symmetry and vanishing moments or higher approximation order which are superior to scalar wavelet

    由矩陣細分方程的某些矩陣性質，多尺度函數和多小波函數可同時具有正交性、對稱性、短支撐性和高逼近階。
  8. The tst was applied to multi - scaling vector to increase it ' s approximation order, and with pr condition, the dual of transformed multi - scaling vector was obtained. then the special tst was taken for this dual, the dual of original multi - scaling vector with higher approximation order obtained, finally the multi - wavelet function with higher vanishing moment maybe constructed

    我們先對已知的尺度向量進行雙尺度相似變換，以提高其逼近階，再求出變換后的尺度向量的對偶，對這個對偶再進行特定的雙尺度相似變換，就可得到原尺度向量的有高逼近階的對偶，從而可能得到具有高階消失矩的多小波函數。
  9. Compared with the lowest - landau - level approximation method, our result has higher accuracy for d ~ centers with lower magnetic field

    這對于較低磁場來說比只用最低朗道能級進行計算得到的結果更為準確。
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