曲面物體 的英文怎麼說

中文拼音 [qūmiànwùtǐ]
曲面物體 英文
curve-shaped body
  • 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...
  • 物 : 名詞1 （東西） thing; matter; object 2 （指自己以外的人或與己相對的環境） other people; the outsi...
  • 體 : 體構詞成分。
  • 物體 : [物理學] body; substance; object
  1. On the ground of educative theory, this paper exposits connotation and characteristic of project - based learning and why we should also enforce project - based learning in high school. as far as substance of project - based learning and objective circumstance what it should have are concerned, it points out the practical ability. at last, based on that university physics education has relatively longer cycle, it proposes stage pattern for enforce project - based learning and give two concrete cases, which discuss capacitance of confocal oval - shaped stylar capacitor and potential distribution of charged conductor of surface being uniparted hyperboloid

    本文在具體的教育理論指導下，闡述了研究性學習的內涵及特點；在大學物理中實施研究性學習的意義；以及就研究性學習的實質和所需具備的客觀條件而言，論述了研究性學習在高校中實施的可行性；並根據大學物理教育具有周期性相對較長和專業循序漸進的特點，提出了研究性學習的階段性模式，並給出了具體的實例，利用保角變換法討論了共焦橢圓柱形電容器電容及單葉雙曲面帶電導體的電位分佈。
  2. In this paper, the finite - element numerical analysis calculation is applied to the foundation of high - rise and multi - floor building and the evolvement law of stress and displacement of tunnel used by urban traffic to explore the mutual influence between the wall rock of underground space and high - rise building foundation, taking account of the specific construction situation in the " sanmu garden " project in dadukou district in chongqing, from the perspective of underground space static - force structure stability analysis to open a underground tunnel with 6m in span and 7. 5m in height for track traffic 20m below the surface. this paper, taking considerations of three different states, i. e. the natural state without any artificial interference, the state of high - rise buildings on the surface, and the underground tunnel state with excavation for track traffic, and four plane lines and four vertical lines, analyzes and studies the distributing law of stress and displacement of calculation section from the following aspects : ( 1 ) the main stress vectorgraph, displacement distribution graph ( ux, uy ) and chromatogram graph of stress isoline ( 1, 2, xy ) of section under different states ; ( 2 ) the contrastive distribution curve of stress ( 1, 2, xy ) of different plane and vertical lines under the same state ; ( 3 ) the contrastive distribution curve of stress ( 1, 2, xy ) of the same plane and vertical lines under different states, wishing to provide references for underground space utilization and project designing and construction of the tunnel under high - rise buildings in the future

    本文結合重慶市大渡口區「三木花園」開發建設項目，從地下空間靜力結構穩定性分析角度出發，針對在該項目中涉及的高層和多層建築物以及在其地下20米處開挖了一個用於軌道交通的跨度6米，高7 . 5米的地下隧道這一具體工程情況，採用2d - 3d -有限元結構分析程序對高層與多層建築物的地基基礎及其與城市軌道交通使用的地下隧道圍巖的應力與位移演變規律進行了有限元數值分析計算，探索了地下空間圍巖與高層或多層建築物地基基礎之間的相互影響，通過考慮未受到任何人為擾動影響的天然狀態、地表存在多層或高層建築物狀態和地下開挖用於軌道交通的地下隧道狀態等三種不同狀態以及4個水平剖線和4個垂直剖線等不同情況，從以下幾個方面具體分析研究了計算斷面的應力與位移分佈規律： （ 1 ）在各種不同狀態下計算斷面的主應力矢量圖、位移分布圖（ ux 、 uy ）以及應力等值線色譜圖（ _ 1 、 _ 2 、 _ （ xy ） ）等； （ 2 ）相同狀態下不同水平與垂直剖線的應力_ 1 、 _ 2和_ （ xy ）對比分佈曲線； （ 3 ）不同狀態下相同水平或垂直剖線的應力_ 1 、 _ 2和_ （ xy ）的對比分佈曲線等，為今後在對地下空間的開發利用以及在高層建築物地下開挖硐室時的工程設計和工程施工提供參考依據。
  3. 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。
  4. Morphing is the continuous smooth and natural transformation of a source object into a target object, where the object can be a numerical image, curve, surface, mesh, etc. morphing has very wide use in many areas, such as computer graphics, animation design, industrial modeling, science computation visualization, film stunt, etc. this paper makes researches on the morph of compatible planar triangulations and that of planar polygons, and the main results are as follows : 1 ) morph of compatible planar triangulations : this paper presents a convexity - preserving method for morphing compatible planar triangulations with different convex boundaries

    變形，是指從初始物體到目標物體的連續、光滑、自然的過渡（這里的物體可以是數字圖像、曲線、曲面、網格等） 。變形在許多領域有著十分廣泛的應用，如計算機圖形學、動畫設計、工業造型、科學計算可視化、電影特技等。本文對同構平面三角網格的變形和平面多邊形的變形進行了研究，主要的研究結果如下： 1 ）同構平面三角網格的變形：提出了具有不同凸邊界的同構平面三角網格的保凸變形方法。
  5. On the aspect of the research of the rcs computation methods, this dissertation did many work as : it discussed the application of the stationary phase method for the integral of the physical optics and gave the expressions of the stationary phase method based bezier surface for the perfect conduct and coated target ; focused on the application of the stationary phase method, it discussed some important techniques such as the searching of the stationary phase method and the handling of the singularity ; it also discuss the application of the gauss method for verifying the correction of the stationary phase method, and gave their compares of the efficiency and the precision

    在rcs演算法研究方面，本文做了以下研究：討論了在bezier曲面上物理光學積分的駐相法求解，給出了bezier曲面上理想導體和塗敷目標駐相公式；圍繞駐相法的應用，討論了駐相法應用中的一些關鍵的技術問題，包括駐相點的搜索、駐相法的奇異性；為了檢驗駐相法的精度，還討論了gauss積分的應用，給出了兩種方法計算效率和精度的比較。
  6. This process is as follows : firstly, the data of different section contour and of section line have been obtained by reverse - engineering ; secondly, non - uniform b - spline approximation algorithm is used to fit the discrete data ; then the data have been optimized and reduced by adopting adaptive sampling of key points of the fitted curve based on vertical distance, sequently the adaptive sampling data is transformed into the format of the. ibl file of the famous 3 - d design software pro / e. therefore we reconstruct the surface and a model is generated ; lastly, the effectiveness of the adopted algorithm and modeling approach are demonstrated by the experiments

    建模型的過程中，首先運用逆向工程測量方法，獲得曲面物體上不同截面輪廓線的測量數據點列，接著對測量數據點進行平滑處理，用最小二乘法求解基於數據點列的控制多邊形，以非均勻三次b樣條曲線擬合截面輪廓曲線；然後利用基於垂距的數據采樣演算法，對擬合曲線上的數據點進行重新采樣，達到優化數據點的分佈及減少描述曲線數據量的目的。
  7. Fluid physical properties, pressure measurement, forces due to static fluids, bernoulli ' s equation, general energy equation, energy losses due to friction, pipe line systems, pump selection and application, open channel flow

    本課程含流體物理性質、壓力測量、沉體平面和曲面所受作用力、柏努利方程式、一般能量方程式、摩擦形成的能量損失、管線系統、明渠流、泵的選擇與應用。
  8. Measuring method and technique that 3d surface shape is recovered from 2d gray image ( shape from shading ) can obtain surface shape by natural way and easily realize the information integration of intersystem. particularly, this technique belongs to non - contact measurement, and it has become a puzzle and hotspot question in image measuring domain based on vision in recent years

    直接由物體的二維灰度圖像恢復其三維幾何形狀（由明暗恢復形狀）的曲面測量方法和技術，能以自然方式提取物體表面的形狀信息，且易於實現系統間的信息集成，尤其是該方法屬于非接觸測量方法，特別適合於測量由彈性模量低的易變形材料製成的零件，近年來一直是基於視覺的圖像測量領域研究的難點和熱點問題。
  9. We also introduce synthesis technique for idt to transport the real - world texture samples on virtual objects. finally, the texture - covered objects could be rendered under environment illumination in real time

    本文接著引入光照相關紋理在任意曲面上的合成技術，將紋理采樣移植到虛擬物體上，最後在環境光源下實時地繪制。
  10. International journal of computational geometry applications, 2001, : 105 - 144. 8 piegl l, tiller w. the nurbs book

    如此，參數化的表達能精確地計算曲面的頂點，而同時，隱示表達能直接判斷出物體的內部或外部。
  11. Characteristics of implicit surfaces are used to compute virtual objects effectively and quickly

    本文首先擴展了虛物體的概念，使得虛物體同樣能夠用於曲面折射效果的繪制。
  12. The method is used to construct virtual objects from real objects quickly, and then render the virtual objects as if they were real objects except for one more step of merging their images with the real objects images

    虛物體的概念最早被用來繪制平面反射和近似的薄板折射效果。 1998年， ofek將虛物體的概念擴展到繪制曲面反射效果，但是他的方法同樣只能得到近似結果。
  13. 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。
  14. The object ' s surface often possesses some particular continuities, so it is indispensable to be able to control the desired continuities between adjacent nurbs patches

    物體的表面一般都具有一定的光滑性，因此擬合小曲面片的這些nurbs曲面之間就必須達到一定程度的光滑連接。
  15. The main difficulty along with approximating to object ' s surface with multi - nurbs patches is that one must deal with more control points, especially the control points around the jv - patch corner because of the intertwining of the geometric continuous constraints along the boundaries converging on the corner

    用nurbs曲面分片逼近物體表面帶來的問題就是要處理大量的控制頂點，特別是n面角附近的控制頂點更需要特別處理，因為曲面片之間的幾何連續約束在角點處互相纏結。
  16. Mathematicians found that these highways always exist whenever two celestial bodies are revolving around each other. any object in these highways will always be attracted towards or driven away by gravity from l1 and l2, without extra energy input

    數學家發現，在兩顆互相公轉的天體，總會存在這些管狀的曲面，當物體位處管上，便會被驅往或驅離l1或l2 。
  17. First, by using coordinate rotation, we have discussed the computer - generated hologram composed by planar object whose plane does n ' t run parallel with that of its hologram. second, through coordinate transform, the computer - generated hologram of curvy planar object has been discussed again, in which, conformal map in computer graphics has been creatively applied, and generated the computer - generated hologram of simple curvy plane ( e. g. spherical surface ) ; also, in this section, the correctness of transformation has been confirmed by numerical reconstruction

    首先利用坐標旋轉討論不平行於全息面的平面所構成的物體的計算全息圖：接著採用坐標變換討論曲面物體的計算全息圖，創造性地將計算機圖形學中的共形對應原理運用到計算全息中，生成了簡單曲面（如球面）物體的計算全息圖，並用數字重現驗證了變換的正確性，為今後復雜三維物體的計算全息圖的研究奠定基礎。
  18. Based on the concept of the rcs and the theory of the basic electromagnetic scattering, this dissertation discussed the application of the physical optics ( po ) to the rcs of bodies modeled with nurbs surfaces, and completed an integrate software with the display, transfer, shelter handling and modification of the models

    本文圍繞復雜目標雷達截面（ rcs ） rcs的概念及基本電磁散射理論，討論了基於nurbs曲面模型的物理光學法的應用，同時完成了集模型顯示、修改、變換、消隱及rcs計算於一體的綜合軟體開發。
  19. The method proposed in this paper can be referred when measuring area, nicks, abrasion and rust on curved surface

    文章所提出的方法對于利用圖像測量回轉曲面物體的面積以及劃傷、磨損、銹蝕等具有重要的參考價值。
  20. The sphere images of 10 balls were captured at 3 different positions as the flat cards. it is proved that curvature of object have no influence on hue distortion in this machine vision system, basically. so distorted hue of balls can be corrected by the model of corresponding position flat cards directly

    5 、分別在上述三個位置採集10種顏色的球面圖像，驗證了在本研究所用機器視覺系統內，物體表面曲率對色度失真基本沒有影響，因此，對于球面物體的色度失真，可直接應用相應位置的平面色卡色度失真校正模型進行校正。
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