radius of curve 中文意思是什麼

radius of curve 解釋
曲線半徑
  • radius : n (pl radii )1 半徑;半徑范圍。2 【解剖學】橈骨。3 (車輪的)輻;【物理學】輻射線;【無線電】徑...
  • of : OF =Old French 古法語。
  • 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. Further more, this algorithm also provides the criterion distinguishing edge inflexion and sleek curve section and the method computing inaccurately curvature radius and approximate perimeter. the paper also introduces the use method with cell edge hollow repairing and overlap or conglutination cell segmentation. for example, this algorithm has proved high - speed and has a good effect of cell segmentation on more than twenty groups of conglutinate and absent cells which are gathered from three kinds of cells

    同時給出了利用這些參數判別邊界角點,邊界光滑段的判據,以及估算曲率半徑,等效周長的方法;最後,以細胞邊界凹陷的修補和重疊細胞粘連的分割為例驗證了演算法的可行性,該演算法在採集到的30餘組粘連和缺損細胞上進行了驗證,結果表明,該演算法處理速度快,分割效果良好。
  2. The relation of radius of curvature and error as well as formulas of increasing parameters on condition of constant error are diverted. the equation of the line on the center of approximate circular arc is obtained , and it can avoids the trouble that numerical solution owns possibility of no convergence and simplifies node calculation of non - circular curve

    導出了曲率半徑與逼近誤差之間的關系和等誤差條件下的參數遞推公式,建立了通過逼近圓弧圓心的直線方程和圓心坐標計算公式.按這種方法用圓弧逼近平面參數曲線,不需要求解非線性方程組,避免了計算可能不收斂的麻煩,簡化了非圓曲線的節點計算過程
  3. The test proves that the caudal fin oscillation frequency, the maximum amplitude of vibration of caudal fin, the caudal fin strikes the water angle influence the fish ’ s speed ; the curve experiment has obtained curve radius of inertia advance curve and static curve ; the ups and downs experiment proves that the pectoral fin on different angle influences the fish to move ups and downs

    加減速試驗論證了尾鰭擺動頻率、尾鰭后緣最大擺幅以及尾鰭的最大擊水角度對魚體速度的影響;轉彎試驗測得了機器魚慣性前進轉彎和靜止轉彎時的轉彎半徑;在機器魚的升潛試驗中論證了胸鰭不同轉角對升潛運動的影響。
  4. The angular extent in a specified plane which contains all the radius vectors of the polar curve of luminous intensity having lengths greater than a specified fraction of the maximum

    在某一平面上,一定角寬范圍內所包含的光強極軸曲線上的矢徑長度均大於其最大值的某一特定比例,這種情況定義為光束的發散。
  5. Oxygen diffusion transport and electrochemical reaction in the oxygen cathode of direct methanol fuel cell ( dmfc ) have been expressed with the tffa model. model calculation has been carried out to investigate the effects of structural parameters of the dmfc cathode on the electrode performance, which is respectively represented by the curve of cathode overpotential versus current density. much attention has been paid to parameters including the porosity of the reaction layer, the thickness of the thin - film on the flooded - agglomerate, the radius of the flooded - agglomerate, the volume fraction of the flooded - agglomerates in the reaction layer

    本文首先運用tffa模型描述直接甲醇燃料電池( dmfc )陰極氧氣的傳遞和電化學反應過程,研究了過電位-電流密度曲線受陰極結構參數變化的影響程度,其中著重考慮了以下幾個參數:催化層的孔隙率,浸漬聚集體薄膜的厚度,浸漬聚集體的半徑,浸漬聚集體在催化層中的體積分數。
  6. With the new - simple method, the equation of circle - arc - enveloping curve are deduced. also the relationship between the arc radius, the radius of center distribution and the distance of centers is given to avoid undercutting

    文中採用新方法推導出了圓弧包絡線轉子型線方程,還給出了避免出現根切現象的圓弧半徑、圓弧圓心分佈圓半徑以及中心距三者之間的關系。
  7. Data processing is performed by pc , which includes detecting rough error by quartile method base on first order differential, adopting three points algorithm to eliminate deviations of rack displacement and installation, applying minimum containing area method to evaluate the sectional plane radius of roller and realizing it by genetic algorithm, adopting akima method to fit curve of roll profile

    主要的數據處理工作在上位機進行,採用基於差分法的分位數演算法剔除粗大誤差;採用三點式測量原理消除探頭的安裝及運動所產生的誤差;採用最小包容區域法評定軋輥半徑,並應用遺傳演算法實現最小包容區域法的尋優計算;採用阿克瑪插值方法進行輥型的曲線擬合。
  8. There are not definite code provision of evaluation of effective width about steel box - girder in many countries, especially curved bridge because its evaluation of effective width vary with the radius of the curve

    目前許多國家對于鋼結構箱形樑上翼緣有效寬度的取值都沒有明確規定,尤其是曲線梁橋由於其有效寬度的取值受曲線半徑的影響,其結構更趨復雜。
  9. In this paper, wheel - rail rolling contact creepages and creeps of independently rotating wheel are analyzed, the effects of lateral and yaw motions of independently rotating wheel, and the curve radius to creepages of wheel - rail rolling contact are emphasisatically researched. 4

    論文對獨立旋轉車輪的輪軌滾動接觸蠕滑率/力進行了分析,研究了輪對橫移和搖頭運動以及曲線半徑對獨立旋轉車輪輪軌蠕滑率的影響情況。
  10. By the calibration method, reliability index of current maintenance standard for mainline railway cwr in china is analyzed. an important conclusion that reliability index for different curved radius is different and reliability index of small radius curve is lower than big radius curve is reached

    對我國干線鐵路無縫線路穩定性的可靠指標進行了校準分析,結果是不同曲線半徑的穩定性可靠指標不均衡,小半徑曲線的可靠指標偏低。
  11. This paper discusses the minimum plane curve radius of medium - and low - speed maglev lines based on the influence factors such as trawler ' s easiness and technical demands of trains, etc., and proposes the values of the minimum plane curve radii that can be taken for reference in determining the correlative route parameters on the medium - and low - speed maglev lines

    摘要從乘客舒適度、磁浮列車自身技術要求等角度,對中低速磁浮交通線路規劃中的最小平曲線半徑進行探討並得到建議值,為中低速磁浮交通線路相關參數的制定提供參考。
  12. Among railway line ' s plane design parameter, the minimum radius of curve, transition curve ' s type and length, straight line between two curves, centre - to - centre distance of track are key factors which confine railway to bringing up speed, moreover these factors among maglev railway request even more strict

    由於高速磁懸浮鐵路採用了非接觸式的行車技術,舒適性將得到很好的改善。鐵路線路平面設計參數中,最小曲線半徑、緩和曲線長度、夾直線長度、線間距離是限制列車速度的關鍵因素,高速磁浮鐵路同樣如此。
  13. Furthermore, we studied the influence of length, radius and aspect ratio on the charge density relative distribution curve, showing that length and radius play an important role in relative charge distribution of tube and in tip respectively

    進一步研究了長度、半徑和長徑比對電荷密度相對分佈曲線的影響,表明長度主要影響管身電荷密度相對分佈,半徑主要影響尖端電荷密度相對分佈。
  14. Author thinks that the direction of the maximum plastic distortion along a constant radius around the crack tip may be considered as the direction of shear - mode fracture ( named pmax - criterion ) and the load when located shear band prongs the ligament in the front of crack tip is regarded as the limited load of shear - mode fracture. ( 3 ) the fad ( fracture assessment diagram ) of titled crack is proposed based on achievements of mesomechanics about i - ii complex ductile fracture of metal, and the titled crack is classified two kinds : void - mode fracture is assessed by fracture assessment curve, and shear - mode fracture by limited load. ( 4 ) using a fe program based on plantle - ressue theory to calculate some mesomechanical parameters, a flange joint structure of a high pressure vessel ( design pressure 31. 4mpa and the thickness of the hemispherical head is half of that of shell. ) is analyzed to determine whether the structure under operation pressure is safe or not, forecast the mode of potential invalidation and argue for the rationality of design of the structure

    試件的整體斷裂為剪切型,但在試件芯部裂尖鈍化區中部出現了韌窩型啟裂並有一定的擴展,說明局部較高的應力三軸度也會使韌窩型機制得以發展,但是不改變試件整體的剪切型斷裂模式;對韌性斷裂的剪切模式的細觀機理做了一定的探討,並且提出了含裂紋構件剪切型斷裂的宏觀判據:認為裂紋前方的集中剪切帶中與裂紋尖端等半徑處最大有效塑性應變出現的方向可以作為裂紋剪切斷裂的方向(可簡稱為_ ( pmax )準則) ,集中剪切滑移帶貫穿裂紋前方承載韌帶時的載荷可以作為極限載荷;本文運用金屬韌性斷裂細觀力學在一復合型韌性斷裂方面的研究成果,採用失效評定圖的形式,提出了傾斜裂紋的安全性評定方法的基本框架。
  15. Radius variation of image beam waist due to spherical aberration which varies with the position of objective beam waist and optical system focus is analysed by the form of curve

    同時以曲線的形式分析了當物方束腰的位置和光學系統焦距變化時,由球差引起的像方束腰半徑變化量也隨之改變。
  16. Based on the theory of thin - walled curved bar, reasonable hypothesized a third - ord parabolic curve, the paper adoptes variational method on energy, taking the coupled relationship of the effect of curvature radius, bend, torsion and shear - lag into consideration, establishes the elastic governing differential equation and boundary conditions for thin - walled curved box girders, which set the foundation of theoretical analysis of shear - lag effect in thin - walled curved box girders

    摘要文章以薄壁曲桿理論為基礎,合理地假設了三個剪力滯翹曲位移函數,應用能量變分法推導出考慮曲率半徑影響、彎、扭、剪力滯耦合的曲線箱梁彈性控制微分方程及其邊界條件,為薄壁大麴率箱梁剪滯效應建立了理論分析基礎。
  17. When putting the static curve with the elongation of 1. 4 and the dynamic curves in different pressure together, we can find that the slope coefficients of the static curve increase with the growth of radius

    把伸長比為1 . 4時的靜態曲線和三種壓力水平下的動態曲線放在一起,從靜態曲線可以看出,當直徑增大時,曲線的斜率也逐漸增大。
  18. We designed two kinds of diameter s - shaped curved arteries finite element numerical simulation geometric models in order to study the influence caused by the singular curved factor ( such as the curvature radius, the dean number ) to flow, and extract the characteristic flow form related to the curve

    在總結和發展前人成果的基礎上,設計了兩種直徑的s型彎曲動脈有限元數值模擬幾何模型,以考察單一的彎曲因素(曲率半徑、 dean數等)對流動的影響,以提取與彎曲相應的特徵流型。
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