象曲面 的英文怎麼說

中文拼音 [xiàngqūmiàn]
象曲面 英文
image surface
  • 曲 : 曲名詞1 （一種韻文形式） qu a type of verse for singing which emerged in the southern song and ji...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  1. Curved glass was the popular contrivance for producing not truth but illusion, untruth.

    曲面鏡不是用來產生真實影像，而是用來產生幻影（即假象）的流行器件。
  2. This paper deals with the optimal development of curved surfaces in 3 - dimesion euclidean space

    本文以三維歐幾里得空間曲面為對象，對其展開與優化問題進行了研究。
  3. And by a machine configure file, the general postposition process is dealed with. at last, from the view of software engineering, the structure of this system is introduced. according to the achievements, nc automatic programming for noncircular surface gringding based on acis is successfully developed. the result of application shows that it is satisfying

    在上述研究成果的基礎上，設計了基於acis幾何造型平臺的非圓曲面數控磨削自動編程系統的總體結構，同時，運用面向對象的設計方法，開發了基於acis的非圓曲面數控磨削加工自動編程系統，並運用於實際生產，性能穩定，效果良好。
  4. A concept of step - by - step round angle surface for transition and its mathematic modeling was put forward first time. different fiber placement patterns ( 0, 90and 45 ply ) and their simulation module were designed. a simulation system for fp - - - - - - simjoint system for satellite triangle conjunction was composted, which include mandrel modeling, fiber placement trace in mandrel simulation and robot ' s kinematics simulation

    詳盡描述了構架式衛星接頭的幾何建模過程，針對所研究對象的特點，提出了用於變截面曲面之間過渡的漸進圓角過渡曲面的概念，並建立了相應的數學模型；針對構架式衛星接頭設計了90 、 0和45等不同角度對應的纖維路徑和鋪絲線型模擬模塊。
  5. Computer aided geometric design, 1989, 6 : 323 - 358. 7 seidel h p. symmetric recursive algorithms for surfaces : b - patches and the de boor algorithm for polynomials over triangles

    2三角b樣條曲面的曲率分佈具有「節點線」現象，也就是說在其曲率在三角面片的邊界上有「聚集」現象。
  6. ( 2 ) the causation that the caustic phenomena of electromagnetic wave propagation in two - dimension concave reflectors occurs and the types of singularities in caustic fields are investigated, and the conclusion that there are two types of singularities ( fold and cusp ) in caustic fields in two - dimension concave reflectors is obtained ; by symplectic geometrical method, formulations of computing wave fields in and far away from caustic fields in two - dimension concave reflectors are deduced, and the results are plotted in pictures. ( 3 ) the cause of the caustic phenomena of electromagnetic wave propagation in three - dimension concave reflectors and the types of singularities in caustic fields is discussed, and the conclusion that there are three main types of singularities ( fold, cusp and swallowtail ) in caustic fields in three - dimension concave reflectors is obtained ; by symplectic geometrical method, the formulae of computing wave fields in and far away from caustic fields in three - dimension concave reflectors are deduced. particularly, the wave fields in ellipsoid concave reflector are computed, and the results displayed in special sections are given

    論文主要包括三個方面： （ 1 ）分析了凹面反射的焦散現象，給出了不同凹面反射的焦散圖； （ 2 ）分析了二維凹面反射波動場焦散現象產生的原因及焦散區奇性的種類，得出了二維凹面反射波動場焦散區奇性主要有折疊（ fold ）和尖點（ cusp ）兩種的結論，利用辛幾何方法構造了圓錐曲面反射波動場非焦散區和焦散區的通用計算公式，並給出了圓柱面、橢圓柱面及雙曲柱面反射的計算結果； （ 3 ）分析了三維凹面反射波動場焦散現象產生的原因及焦散區奇性的種類，得出了三維凹面反射波動場焦散區奇性主要有折疊（ fom 、尖點kusp和燕尾k ）三種的結論，提出了利用辛幾何方法計算三維凹面反射波動場非焦散區和焦散區的計算方法，並給出了三軸不等橢球體凹面反射波動場的計算結果剖面圖。
  7. In this example, then, the surface forms a virtual image 180mm to the left of the vertex.

    因此，在本例中這曲面在頂點左方180mm處形成一虛象。
  8. Annals of the institute of statistical mathematics, 1992, 44 : 197 - 200. 24 collins m, schapire r, singer y. logistic regression, adaboost and bregman distances

    該技術可抽象為構造映射將一個三維空間曲面在二維定義域中攤平，而如何降低映射的扭曲程度成為難點所在。
  9. This dissertation is concerned with the problem of reconstructing the surfaces of 3 - d objects from a collection of planar contours representing cross sections through the objects

    本文主要關注基於輪廓數據的三維物體對象曲面重構問題，輪廓表示著一系列通過物體對象的斷層截面形狀。
  10. 1986, 18 : 301 - 307. 6 hoffmann c, hopcroft j. the potential method for blendingsurfaces and corners. in geometric modeling : algorithms and new trends, farin g ed.,

    早在1984年， rossignac和requicha就提出用滾球法進行過渡曲面的設計，但用這種方法得到的曲面表達式比較復雜，而且在滾球半徑較大時容易出現自交的現象。
  11. Crowding model is used to form multiple niches in fitness landscape, while clustering algorithm eliminates genetic drift in each inner niche

    擁擠模型在適應值曲面上形成多個小生境，聚類演算法消除了每個小生境內部的基因漂移現象。
  12. He saw jan as though someone had snatched a deforming mask from jan's face.

    他看見了簡的真面目，彷彿有人把一個歪曲形象的面具從簡的臉上撕了下來。
  13. Surface modeling is an important subject in computer aided geometric design and computer graphics. it researches on denoting, designing, displaying and analyzing of surface in the environment of computer image system

    曲面造型（ surfacemodeling ）是計算機輔助幾何設計（ computeraidedgeometricdesign ， cagd ）和計算機圖形學（ computergraphics ）的一項重要內容，主要研究在計算機圖象系統的環境下對曲面的表示、設計、顯示和分析。
  14. Nurbs surfaces with single interior knots are simple and used widely. the thesis main aims at biuquartic, biquintic, k x fc - degree b - spline surfaces and bicubic nurbs with single interior knots. one of the contributions is to apply knot refinement and the geometric continuous conditions of bezier surfaces to deduce the geometric continuous constraints of nurbs patches and obtain the intrinsic equations of common boundary curves, where the intrinsic equations are the special phenomena of nurbs surfaces

    節點向量是內部單節點的nurbs曲面是最簡單也是最常用的，本文重點針對單節點的雙四次、雙五次和雙k次b樣條曲面及雙三次nurbs曲面，運用節點插入技術和b zier曲面的幾何連續理論成果，導出了它們之間的幾何光滑拼接條件，同時得到了公共邊界曲線所必須滿足的本徵方程，其中本徵方程是nurbs曲面所獨有的現象。
  15. 3d points are converted to images based on spherical polar coordinates, and point cloud surface information such as location, normal and color are stored in two - dimensional images

    本文通過球面極坐標將點雲曲面的幾何信息及表面屬性信息映射到二維圖象中去。
  16. From the point cloud surfaces, multi - layered geometry images are created which can represent the original models accurately very much. the compounded geometry image representation of point cloud surfaces, is also based on the former transform method, where the difference lies : take one of coordinates as the gray value and another two as location respectively, three different geometry images can be created. three gray images are combined into a compounded color image

    點雲曲面的復合圖象表示方法，首先把點雲曲面中點的笛卡爾坐轉換為球面極坐標，分別把球面極坐標[ r ， ， ]中的一個坐標轉換為象素的灰度值，另外兩個量轉換為該象素的坐標，這樣就可以得到三幅不同的圖象，把這三幅灰度圖象分別對應到彩色圖象的r ， g ， b中去，就組合成為一幅復合彩色圖象。
  17. To eliminate or lessen the system errors caused by the offset and slope of the thin aluminum sheet when measuring its surface, and to avoid over - cutting while machining the honeycomb surface, the saddle - point programming is applied to the position optimization of the theoretical surface. to generate the cnc program of the honeycomb sandwich, the equidistant calculation of the actual surface is produced and the data processing software is developed

    利用鞍點規劃方法優化理論橢球面的位置，使實測曲面相對理論橢球面的最大法向誤差達到最小，減少或消除了蒙皮內表面測量時由於定位的偏心或歪斜引起的系統誤差，使誤差均化，防止了配對加工蜂窩夾芯表面時少切或過切現象的發生。
  18. Through the studies of the invariants of the single axis motions, computational theories have been developed in this thesis to provide practical solutions for the problem of structure and motion from fitting the corresponding points in the whole sequence to its conic locus or conies for short. it is then shown that all single axis geometry can be directly computed either from one conic and one fundamental matrix or from at least two conies. the rotation angles then can be calculated directly from using the laguerre formula

    本文通過詳細分析單軸旋轉運動中的不變量，利用物體點在單軸旋轉運動中軌跡為圓，而在圖象平面的投影為二次曲線的這一特徵，以二次曲線為分析的基元，研究了求解單軸旋轉運動結構問題的新理論和一系列新演算法，並在此基礎上完成了物體的三維重建等工作。
  19. The system includes the menu, the programs of parametric drawing and the dcl dialog box. the menu is designed by icons, which can be switched to the menu of autocad. the dialog box include image and edit - box and radio - button

    該系統包括菜單、參數化繪圖程序和dcl對話框設計，其中菜單採用圖標菜單，並能和autocad標準菜單進行切換；對話框主要採用圖象控制項、 edit - box編輯框和radiobutton按鈕；參數化繪圖程序採用autolisp語言編制，每一種曲面構件展開單獨編制一段程序。
  20. The second part is load analysis. bases on the form - finding, the stress, strain and displacement etc are calculated under loads. also the problem of membrane drape and cable relaxation should be considered during this procedure

    第二階段是荷載分析階段，即找形分析獲得的曲面在各種可能荷載組合的作用下，求解其變形、位移、索膜內力及判別薄膜是否有褶皺產生或索是否有鬆弛現象。
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