local derivative 中文意思是什麼

local derivative 解釋
當地導數
  • local : adj 1 地方的，當地的，本地的。2 局部的。3 鄉土的，狹隘的，片面的。4 【郵政】本市的，本地的；【鐵...
  • 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. The accuracy of reliability calculation was improved in the derivative sfem method. the local derivatives of fem and numerical method were used to obtain the iterative formulas of the performance function ' s local derivatives. the procedure is relatively simple and adaptable to engineering application as the stiffness matrix formed and decomposed only once

    偏導sfem可靠度法求解構件疲勞可靠度，可靠度計算精度得到改善，通過有限元求偏導，結合數值微分技術，推導出了功能函數的偏導迭代格式，只需一次形成和分解總綱，計算較簡便，適合工程應用。
  2. Derivative calculation and application in spherical cap harmonic analysis of local gravity field

    局部重力場球冠諧分析中的導數計算及應用
  3. When a smoothing function ' s first derivative is adopted as wavelet function, the local maxima of wavelet transform modulus detect the location of signal ' s singularities, in this thesis, these characters are not only applied to measure the magnitude of dead angles of the dissymmetry inrush but also the symmetry inrush in three - phase transformer

    當小波函數取光滑函數的一階導數時，信號小波變換的模在信號突變點將取得局部極大值。本文利用這些性質不僅對三相變壓器的非對稱性涌流間斷角的大小進行測量，同時還測量了對稱性涌流的間斷角，測量精度有一定的改善。
  4. The third one, we calculated the local facet temperature theoretically and experimentally when ld are operated, the former, we used the henry ' s model, however, the latter, we chose the photoluminescence and raman spectra, finally, we found that accuracy of pl is better than that of raman spectra, however, theoretical results is higher than trial results, but theoretical results accorded with pl when operating current increase. the fourth, electric derivative testing techinque at the constant current ( 500ma ) and temperarure ( 40c ). we study the reliability of ld, and analyzed the reasons, we measured more than the ingaasp high power semiconductor lasers with electric derivative technique, and analyzed the relation between the electric derivative parameters, m, b, h and reliability of devices

    分別從理論上和實驗上計算分析了激光器在工作時腔面的溫度分佈，理論上採用的是henry模型，實驗上通過光致發光和拉曼光譜法測試了激光器在工作時的腔面溫度分佈；結果表明光致發光法測量的較為準確，拉曼光譜法測量的值偏大，由於我們對理論模型做了一定的近似，理論結果偏大，但理論值在大注入時和光致發光法符合的較好，由此可見光致發光法對研究腔面的溫度有更大的優越性。
  5. Sun hung kai financial - the seller of the derivative - receives a previously agreed basis point spread over hibor, the local risk - free lending rate

    新鴻基金融- -此款衍生品的賣家- -將根據之前協議，得到高於香港銀行同業拆息（ hibor ，香港本地無風險貸款利率）協定基點的利差。
  6. This algorithm has conquered the deficiencies of the traditional optimization methods that require calculating the derivative of the objective function and that are easily trapped in the local optimal areas. but the shortcoming of ga is its poor search efficiency. the thesis suggests integrating the gradient - based algorithm sqp into ga, and thus combining the global search ability of ga and fast convergence ability of sqp, which results in two hybrid algorithms ga - sqp - i and ga - sqp - ii

    該方法克服了傳統優化方法需要計算目標函數導數且容易陷入局部最優的缺陷，但遺傳演算法本身具有搜索效率低的缺陷，本文提出將其與傳統梯度演算法sqp相結合，發揮遺傳演算法的全局搜索能力和梯度演算法收斂快的優勢，開發了兩種混合演算法ga - sqp - i和ga - sqp - 。
分享友人
分享到 Line

分享到臉書