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direction angle 【數學】方向角。

directional

Research about ctod and its components 8 “ , “ shows that the direction angle of ctod vector is identical with the fracture angle of void - mode fracture , which is obtained through experiments , and it is also identical with the result got by peak value line of stress triaxiality . besides , 8 i “ was compare with vgc as criterion for initiation of void - mode fracture 對裂紋尖端張開位移ctod及其張開型分量~ 1和剪切型分量~ 11的分析表明,在試件發生韌窩型斷裂時,按照圓弧裂紋中ctod矢量的垂直方向預測的斷裂角與試驗測得的斷裂角符合較好,與三軸度脊線預計的結果也比較一致。

Three kinds of trapezoid , delta and airfoil shaped vortex generators are designed based on traditional , sub boundary layer and micro - vortex generators conceptual design , to study the influence of the shape , height , aspect ratio , chordwise position , spanwise position and direction angles of vortex generators on boundary layer separation control ( 5 )綜合分析研究了渦流發生器的工作原理和設計原則。根據國內外資料,研究了渦流發生器形狀、高度、展弦比、尖削比、弦向位置、展向位置和方位角等因素對附面層分離控制效果的影響。

By means of bending tests of three - point and four - point , complex fracture experiments were made for cast iron material with crack . the stress intensity factor and breaking direction angle of cast iron material were measured and compared with theoretical values . based on the research some useful conclusions are given for engineering design and application 通過3點彎曲和4點彎曲實驗方法,對含有裂紋的鑄鐵材料進行復合型斷裂實驗研究,測試鑄鐵材料的應力強度因子、斷裂方向角,將實驗結果與理論值進行分析、比較,找出兩者之間的異同點,得到一些對工程設計及應用具有實際意義的結論。

In local vector match method , we add the line numbers and the dispersion of direction angle between the center point and near minutiae point . we also add the direction angle of the center point . these additions enhance veracity of the minutiae feature matching 在局部向量特征匹配法中加入了中心點與鄰近特征點的紋線數,方向角差,中心點的方向角等特征信息,提高了特征匹配的準確性。

Secondly , output powers are measured in the different wind velocity or the direction angle or angle speed for mechanics model . the optimal angle of the direction is determined . that is to say , output power is the maximum in this direction angle 其次,通過對風力發電機模型在不同風速、不同方向角、不同角速度的情況下輸出功率的測量,得出最佳方向角,即在該方向角處輸出功率最大。

Introduction : game point with the left mouse button screen right red arrow can choose the direction angle of the left point screen shot button attack 游戲用鼠標左鍵點畫面右邊紅色箭頭可以選擇方向角度,點畫面左邊shot按紐出擊

Z coordinate and direction angle of the instrument can be calculated and reset by measuring z coordinate of known points ( max . 10 points ) displayed 通過觀測已知點的高程(最多10個點)來計算并重新設置測站點的高程與方位角。

Game point with the left mouse button screen right red arrow can choose the direction angle of the left point screen shot button attack 游戲用鼠標左鍵點畫面右邊紅色箭頭可以選擇方向角度,點畫面左邊shot按紐出擊

Using wavelet transform , edges and their direction angle which is used as a matching constraint in the image were gained 通過小波變換,得到了圖像的邊緣和邊緣幅角并定義了邊緣幅角約束。