boundary representation 中文意思是什麼

boundary representation 解釋
邊界表示法
  • boundary : n 邊界，疆界，限界 （between）;（球場）邊線；界標；界限，范圍，分野。 aboundary dispute 邊界糾紛...
  • representation : n 1 表示，表現，描畫，描寫；畫像，肖像；雕像，想像，想像力；【心理學】表象。2 上演，演出；扮演。3...
  1. ( 3 ) based on a close research of the cad model representation in mdt, this paper picks up the model information expressed in the boundary representation ( b - rep ) using the development kits of objectarx and mdt api offered by autodesk inc. ( 4 ) the direct slicing data are processed so as to realize the sorting and fitting of short lines, the cutting tool compensation, the layer contour filling and the optimization of the scanning paths, etc. ( 5 ) designs the architecture of rp data processing software according to the functional requirement of rp, and integrates all the functional modules

    （ 3 ）在深入研究mdt （ mechanicaldesktop ）中三維模型表示方法的基礎上，運用autodesk公司提供的mdt二次開發工具objectarx和mdtapi ，成功地實現了對mdt模型信息的提取，進而使直接自適應分層演算法得以實現。 （ 4 ）對直接分層得到的數據進行了工藝規劃。實現了對層片輪廓線段的排序、擬合、刀具補償以及輪廓內部填充和掃描路徑優化等。
  2. ( 2 ) based on a close research of the interior representation of cad model in mdt, this thesis picks - up the interior topological and geometrical information of model expressed in the boundary representation ( b - rep ) using the development tools of objectarx and mdt api offered by autodesk inc. the picking - up information makes it successful to implement the adaptive slicing method

    （ 2 ）研究了mdt軟體平臺下cad模型數據的內部表達方法，運用autodesk公司提供的mdt二次開發工具objectarx和mdtapi ，實現了mdt模型的幾何信息和拓撲信息提取，使自適應分層演算法得以實現。
  3. Abstract : it is observed that the sommerfeld ' s formula for a progressive spherical wave is not covariant with respectro the rotation of the coordinate system. it contains complex partial waves that are not physical. the standing wave representation of the same formula is shown to be covariant and physical. it is applied to solve the boundary value problem of fiber optics. the radiation modes as well as the guided normal modes are obtained in closed forms. the intensity distribution in various modes is obtained. it is remarked that the mode of critical refraction is missing

    文摘:說明了球面行波的索末菲公式在坐標轉動下不協變.證明了球面波的駐波表示是協變的，因而是一個物理的關系式，故適用於圓柱坐標中各類波動方程的定解問題.作為一個例，應用於光纖光學，導出了受導簡正模和輻射模的表達式，以及各模式的強度分佈
  4. Hust - caid ( computer aided industry design system developed by harbin university of science and technology ) is a parametric modeling design system based on feature. this system describes entities based on mixed model of boundary representation 、 csg tree and feature description tree ( fdt ), in which the design of solid model and feature - editing can be completed with rebuilding csg tree and feature description tree. but, in the feature modeling, with the number of features increasing, the design model becomes more and more complex. the efficiency of designing is decreased

    Hust - caid （哈爾濱理工大學計算機輔助工業造型設計系統）是一種基於特徵的參數化造型設計系統。該系統在基於b - rep 、 csg樹和特徵描述樹（ fdt ）的混合模型基礎之上，利用重用csg樹與特徵描述樹的技術，來完成實體模型的設計與編輯工作。但在特徵造型過程中，隨著造型體數目的增加，設計模型將變得越來越復雜，由此導致了系統設計效率的降低。
  5. For getting the runner characteristics more correctly, researching the representation of runner characteristics of the kaplan turbine in this paper, and using this method of modifying runner characteristics to calculate the transient of hydraulic power station. improving the calculating model of the axial thrust in the kaplan turbine ' s transient. base on the theory of screw propeller without any boundary, using the theory of screw propeller with pipe, and the formula to calculate the dynamic axial thrust during transient is developed

    本文對轉槳機組在過渡過程中的槳葉劃水產生水推力的數學模型進行了改進，在原來使用無邊界螺旋槳進行等效的基礎上，使用了導管螺旋槳對轉槳機組中的槳葉劃水進行等效，並且比較詳細的分析了影響轉槳機組軸向水推力的各個因素，以及給出了動態計算軸向水推力的公式，通過計算表明，使用改進后的動態水推力計算模型得到的結果能較好的反應實測的動態軸向水推力。
  6. The explicit formulas for the second type of hua domain and two types of generalized exceptional hua domain are obtained in the first chapter of this article : whether a domain is complete with respect to bergman distance is studied in the second chapter of this article, and we prove super - cartan domains which are special types of hua domain are complete with respect to bergman distances ; the integral representation for the first type of super cartan domain which is based on its characteristic boundary is got in the third chapter of this article : a sufficent and necessary condition that a bounded domain in cn is biholomorphic to the classical domain is given in the fourth chapter of this article

    第一部分給出第二類華羅庚域和兩類廣義例外華羅庚域的bergman核函數的顯表達式；第二部分研究bergman度量的完備問題，證明了超cartan域（一種特殊的華羅庚域）關于bergman度量完備；第三部分給出了第一類超cartan域的建立在其特徵邊界上的積分表示公式；第四部分則給出了c ~ n中的有界域全純等價于典型域的充要條件。
  7. Without any hypothesis of the propeller ' s geometry, the surface panel method satisfy the body surface boundary condition on the fact body surface, and make the geometry representation of the propeller more precise, the mathematical model is more perfect

    面元法是在實際物面上滿足物面邊界條件，沒有對螺旋槳的幾何形狀做任何假設，能更精確地描述螺旋槳的復雜幾何形狀，其數學模型更加完善。
  8. After reviewing wavelet theory, pyramid wavelet decomposition was introduced to texture representation, we discussed the problem of optimal window size for texture feature extraction method ; the problem of local statistical feature value refinement has been studied, and a refinement method has been given which can decrease the boundary effect in calculating the feature value

    在敘述小波分析理論的基礎上，把金字塔小波分解引入到紋理表示中來，討論了提取紋理特徵值時選取窗口大小的問題；研究了局部統計特徵值的改進問題，給出了一種對所提取的紋理特徵值的改進演算法，一定程度上克服了計算紋理特徵時的邊界效應。
  9. 2 ) for making the meshes consistent on the common boundaries of adjoining surfaces, a new approach of boundary discretization is employed. 3 ) the boundary - representation structure is adopted to fulfill the mesh generation over combined surfaces. 4 ) the quality of surface meshes is improved by point creation on 3d scan lines and diagonal swapping procedure

    通過引入可移動的虛邊界解決了閉合曲面的剖分問題；通過對鄰接曲面公共邊界的統一處理，保證了組合曲面拼合處網格的相容性；以邊界表示數據結構為基礎實現了三維組合曲面的全自動網格剖分；採用空間掃描線布點、診斷交換等技術，優化了網格的質量；並以autocad為支撐平臺objectarx為開發工具，開發了一個基於幾何造型的曲面三角形網格全自動生成程序。
  10. Firstly the formulation arid representation of solutions of the above boundary value problems are given, and then the existence of solutions for the above problems is proved, in which the complex analytic method is applied, namely the complex functions in the elliptic domain and the hyperbolic complex functions in hyperbolic domain are used

    先給出這個問題的提法和解的表示式，然後使用一種新的復分析方法，即在橢圓區域上使用復變函數，在雙曲區域上使用雙曲復函數，最後證明了上述混合型方程間斷斜微商問題解的存在性。
  11. Industrial automation systems and integration product data representation and exchange part 513 : application interpreted construct : elementary boundary representation

    工業自動化系統與集成產品數據表達與交換第513部分：應用解釋構造：基本邊界表達
  12. Geometrical info, topology info and electromagnetic info are required for electromagnetic computation. and allowing for the characteristics of every modeling method, boundary representation as the form of girding is adopted to model the targets. the design pattern of tools and commands is used in graphical user interface design

    本文採用了基於半邊數據結構的模型表達方式，在系統的圖形用戶交互（ gui ）設計中，採用了工具命令（ tools commands ）的設計模式，提供了多種建模方法和模型輸入輸出介面，具有良好的用戶交互能力，提高電磁計算的應用能力。
  13. This paper has a further study on the key technology called validity maintenance mechanism in semantic feature modeling in order to maintain the intent of designers and satisfy them. the method combines geometry model and semantic feature modeling, setting up new feature representation 、 cell element naming and identification method. in the meantime, a history - independence interactive feature boundary re - evaluation algorithm is presented based on feature editing. moreover, the validity recovery mechanism after invalid feature operation can maintain the original feature model. the above ideas have been realized on hust - caid ( computer aided industry design system developed by harbin university of science and technology ) preliminarily

    為了能夠正確地維護設計者的設計意圖和滿足用戶的需求，本文在原有造型的基礎上對語義特徵造型中的關鍵技術即有效性維護機制進行深入的研究，將幾何模型，語義特徵模型結合起來統一進行研究，建立了語義特徵造型在產品模型設計過程中特徵表示方法的新理論、細胞元素命名方法和辨別機制，同時對系統原有特徵編輯過程進行了研究，提出了獨立於歷程樹的特徵邊界重構演算法以及模型操作無效時的有效性恢復方法。
  14. The author studies some important domain analysis methods in the world. because of the virtues of foda method, the paper researches over am / fm / gis domain with the foda method, tries to plot out the boundary of am / fm / gis domain, extracts the domain features of am / fm / gis, and gains am / fm / gis domain model, including domain structure model, context feature model, operational feature model, representation feature model, information model, and activity model. these models are expressed in uml modeling methods, class description language, and tree view diagram

    論文在分析了眾多國內外領域分析方法的基礎上，選擇foda方法對am fm gis領域進行深入研究，界定其領域邊界，抽取出am fm gis領域特徵，得出了am fm gis領域結構圖、場景圖、特徵模型、信息模型和操作模型，並採用多種uml建模方法、類描述語言、樹狀圖等表達方式對相關模型進行描述，並在此am fm gis領域模型的基礎上探討了領域設計與實現。
  15. Then, we infer the thin film system reflection or the transmittance mathematics value formula and the characteristic matrix representation formula from the maxwell ’ s equations and the suitable boundary condition. we study the automatic design problem of optical thin film

    在此基礎上從麥克斯韋方程組和適當的邊界條件出發，推導出了薄膜系統的反射或透射率的數學數值計算公式和特徵矩陣計算公式。
  16. An ophthalmic excimer laser system used to correct wavefront aberration is presented. the conception and zernike representation of wavefront aberration of human eyes recommended by osa are introduced. the connection of wavefront aberration and ablation profile is analyzed and a model for calculating ablation profile to correct wavefront aberration is presented. because the ablation depth on the boundary is nonzero and irregular, we present a model for calculating ablation profile in a transition zone

    深入研究了準分子激光像差矯正系統，採用美國光學大會推薦的像差的定義、像差的zernike多項式表示方法，定量分析zernike多項式表示的像差與角膜切削量的關系，採用主觀式人眼像差儀測量像差，得出了像差矯正的角膜切削模型，並提出了一種採用過渡函數進行邊界切削的方法，用於可調的過渡區切削量的計算，為人眼單色像差的矯正提供了理論基礎。
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