quadratic curve 中文意思是什麼

quadratic curve 解釋
二次方曲線
  • quadratic : adj. 1. 【數學】二次的。2. 方形的。n. 1. 【數學】二次方程式；二次項。2. 〈pl. 作單數用〉【數學】二次方程式論。
  • curve : n 1 曲線；彎曲；彎曲物。2 曲線規 （＝French curve）；【機械工程】曲線板；【棒球】曲線球；【統計學...
  1. The results indicate that the ratio of span to rise, the ratio of reinforcement and the stretching controlling stress are the three primary influencing factors to the failure pattern of the slab. in addition, the relationships between the ratio of deflection to span and the ratio of span to rise and the stretching controlling stress submit to linear curves, the relationship between the ratio of deflection to span and the ratio of reinforcement submits to a quadratic parabola curve

    運用數值分析程序計算了175組不同跨高比、配筋率、張拉控制應力的中強（ 1270mpa ）螺旋肋鋼絲預應力空心板，結果表明跨高比、配筋率、張拉控制應力是影響空心板破壞形態的主要因素，且構件撓跨比與跨高比和張拉控制應力呈線性關系，與配筋率呈二次拋物線關系。
  2. In order to verify the feasibility of ann, adopting same training sample the author establishes quadratic curve model and index model of tourism foreign exchange income and cubic curve model and index model of total inbound tourist quantity

    為了驗證人工神經網路模型的可行性，筆者用同樣的訓練樣本分別建立了旅遊外匯收入二次曲線模型、指數曲線模型和入境遊客三次曲線模型、指數曲線模型。
  3. They have the properties like the quadratic uniform b - spline basis functions. the piecewise polynomial curves generated by the above - mentioned functions possess the same structure and geometry properties as piecewise quadratic uniform b - spline curve

    它們具有二次均勻b樣條基函數的性質，且用它們生成的分段多項式曲線具有與分段二次均勻b樣條曲線相同的結構和幾何性質。
  4. The result shows that the sufficient and necessary condition of the quadratic rational b - spline curve ' s curvature monotony is similar to the quadratic rational bezier curves ", but its condition is some different from the quadratic rational bezier curves " curve ' s rendering algorithm is an important content in computer graphics, cad

    曲線的生成演算法是計算機圖形學的重要內容。對於一些基本曲線，如直線，圓，橢圓等，都有快速生成演算法，如畫直線的bresenham演算法， dda演算法，畫圓的bresenham演算法，中點法，正負法， pitterway的橢圓及拋物線繪制演算法等等。
  5. In fact, rational quadratic bezier curve is just a special form of rational quadratic b - spline curve, the condition of quadratic rational b - spline curve is similar to quadratic rational bezier curve

    事實上，二次有理b zier曲線是二次有理b樣條曲線的特例，二次有理b樣條曲線曲率單調的充要條件是否與二次有理b zier曲線相類似
  6. We have more important significance studying quadratic rational b - spline curve ' s curvature monotony. this paper derive the curvature monotony condition for the quadratic rational b spline curves by using the skew coordinate system that can reduces the calculation process. and the curvature monotony condition is compared to the quadratic rational bezier curves "

    本論文通過建立斜坐標系，簡化了計算過程，推導出了二次有理b樣條曲線曲率單調充要條件，並與二次有理b zier曲線的曲率單調條件相比較，結果表明：二次有理b樣條曲線曲率單調的充要條件與二次有理b zier樣條曲線相類似，但其條件又有不同。
  7. From 1990 ' s, sapidis and others had some studies on quadratic bezier curve ' s curvature monotony and they get this curve ' s sufficient and necessary condition of curvature monotony, but the condition is some strict. in 1998, minerur and some researchers brought forward a high degree curve ' s sufficient condition of curvature monotony. in 2000, wang w. l

    從90年代起， sapidis等人對二次b zier曲線的曲率單調性問題進行了研究，得到了曲率單調的充要條件，其條件比較苛刻； 1998年minerur等人提出了一種高次曲線曲率單調的充分條件； 2000年王玉林等人對二次有理b zier曲線曲率單調進行了研究，得到了充要條件。
  8. Comparing with the quadratic b - spline curve, they have advantages by themselves : firstly, the shape of the curves can be adjusted locally by the parameters i ; secondly, the curves formed by blending functions of degree 4 can be g2 continuous. in addition, in order to meet various requests for continuity of curves in practical applications, corresponding polynomial functions can be used to construct the curves

    但與二次均勻b樣條曲線相比，它們還有其自身的優點：首先，曲線的形狀都可用參數_ i進行局部調整：其次，四次調配函數所構造的曲線就可達到g ~ 2連續；另外，為了滿足實際應用中對曲線連續性的不同要求，可使用相應次數的調配函數來構造麯線。
  9. Polynomial, transcendental function, new quadratic curve, b - spline and nurbs have been used in expression of hull molded line, trapezoidal method, simpson method have been used in static calculation

    在船體型線的表達方面有多項式、超越函數、新二次曲線、 b樣條函數、非均勻有理b樣條函數等。
  10. Thirdly, the principles of nurbs curve and surface are used to the modeling of complex object, and a protruding quadratic programming algorithm for reconstructing reference points of nurbs curve

    第三，採用了nurbs曲線、曲面技術對復雜目標建模，給出了反求nurbs曲線控制點的凸二次規劃演算法。
  11. In this thesis, the basic problem of network security, some correlative protocols and cryptology are discussed at first, math theory in point is also studied. especially, a sort of new matrix method of solving quadratic equation over gf ( 2m ) is given, which is the key of selecting random point over elliptic curves. no better solution has been found in related literature in the world. compared with ieee p1363 ' s method, it is easy to implement the software and obtain high efficiency, etc. then the basic operation of elliptic curve is debated and the steps of finding secure curve and basis point over gf ( 2m ) are presented. moreover, the encryption and decryption schemes of the ecc are designed and the security problem of ecc is also considered. in the end, ecc by koblitz curves are implemented

    文章首先討論了網路安全基本問題、網路安全協議和密碼學；對相關數學理論進行了研究，特別是給出了一種新的求解gf （ 2 ~ m ）上二次方程的矩陣法，而它是選取橢圓曲線上的隨機點的關鍵步驟，和ieeep1363的方法相比，它有易於軟體實現、效率高等優點，在國內外相關文獻上還未見到更好的求解方法；接著討論了橢圓曲線的基本運算，進而給出了在gf （ 2 ~ m ）上選取安全曲線及基點的步驟；文章還設計了橢圓曲線加密系統的加解密方案，討論了橢圓曲線系統的安全性問題。最後文章就koblitz曲線加密系統進行了軟體實現。
  12. The paper expounds the algorithms of generating quadratic curve. using quadratic curve and cubic bezier curve enforces the smooth of curves

    論文闡述了幾種二次曲線生成演算法；說明如何應用二次曲線和三次bezier曲線擬合改善曲線的光滑性。
  13. The planar quadratic system with an invariant cubic curve has at most one limit cycle

    類方程的極限環存在性的注記
  14. Is put forward, followed by the construction of nurbs curves on quadratic surfaces, and the interpolating curve restricted on general surfaces

    進一步給出了用nurbs表示的任意曲面上nurbs曲線構造，揭示了曲面上曲線的連續性。
  15. A method with quadratic curve precision for determining knots

    二次曲線精度的節點計算方法
  16. Quadratic curve in higher geometry

    高觀點下的二次曲線
  17. However, the quadratic curve is only c ? continuous, while the cubic ' s is c1 continuous

    還給出球面上等距節點二次和三次b樣條曲線的插值方法。
  18. There was a quadratic curve relation between unit cost and yield. the unit cost was the lowest when the yield was about 400 kg / mu

    且小麥生產的單位成本與產量之間呈極顯著二次曲線關系，產量為400kg /畝左右時，單位成本最低。
  19. 7. a high - speed photography software system was designed, and was used in the straw throwing experiment. the results show that the trace is similar to the quadratic curve predicted by theory

    7設計了由圖像預處理模塊、運動目標提取模塊、運動目標跟蹤模塊以及跟蹤結果數據保存模塊組成的土槽高速攝像軟體系統，並將系統應用到秸稈拋撒試驗的軌跡研究中。
  20. 4. the results indicated that the applied nitrogen amount had a quadratic curve relation with grain yield. yield and profit increased with the amount of nitrogen applied under a certain amount of nitrogen

    田間試驗結果表明，施氮量與產量呈二次曲線關系，在一定的施氮量范圍內，產量和經濟效益都隨施氮量增加而提高，超過施氮量閾值，增加施氮量，產量和經濟效益下降。
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