higher derivative 中文意思是什麼

higher derivative 解釋
高級衍生物
  • higher : adj 〈high 的比較級〉較高的；高等的。 higher command 【軍事】＝ high command higher criticism 聖...
  • 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. Derivatives in higher dimensions, directional derivative and gradient

    多維微分、方向導數和梯度。
  2. Higher order derivative

    高階導數
  3. As the cam profile with constant - velocity - constant - acceleration ramp feature and with continuous higher derivative lift feature is widely adopted in the advanced high - speed internal combustion engines, the cam ramp profile is fitted with a reasonable function and the cam - lift profile is fitted with a polynomial function

    考慮到高速內燃機的凸輪大多採用具有等加速-等速特徵的緩沖段和高階導數連續特徵的工作段型式，用等加速-等速函數擬合緩沖段實測升程數據，用整體式高次多項式函數擬合工作段實測升程數據。
  4. Based on parameter - parameter surfaces intersection curve, the differential geometric properties of implicit - implicit ones are in detail in the paper. these properties include tangents, curvature vector and higher - order derivative vector in cases of transversal intersection and tangent intersection

    本文在參?參曲面交線基礎上，詳細推導了隱?隱形式兩曲面空間交線的微分幾何性質，這些性質包括截交及切交下的切矢，曲率矢以及高階導矢等。
  5. Judging extreme values of two - variable function through partial derivative of higher order

    利用高階偏導數判定二元函數極值
  6. And the management has proved successful in changing the focus of its wholesale business towards higher - margin structured and derivative products, while improving the unit ' s cost - income ratio

    管理層成功地將銀行核心業務由批發轉向高利潤率的結構性衍生產品，同時提高了單位成本收益比。
  7. It provides an alternative investment for overseas clients who expect high return and are also ready to afford higher than normal risks associated with margin trading activities and derivative product investments

    此新產品為尋求更高回報，同時為能承受?展買賣活動和衍生工具投資所附帶的較高風險之海外客戶，提供另一投資選擇。
  8. 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。
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