拓撲單形 的英文怎麼說

中文拼音 [tàpūdānxíng]
拓撲單形 英文
topological simplex
  • 拓 : 拓動詞（把碑刻、銅器等的形狀和上面的文字、圖形印下來; 拓印） make rubbings from inscriptions pict...
  1. In short, vector data take the simplest topological entities - points, lines, and polygons - and anchor them within a 2 - d cartesian coordinate system to describe geographical features

    簡言之，矢量數據利用最簡單的拓撲實體點、線和多邊形，並在二維笛卡爾坐標系統中固定它們來描述地理特徵。
  2. A topological study of representative single - stage pfc converters are presented. in sigle - stage pfc approach, there are two important issues of concern. one issue is how to implement the input current shaper ( ics ). another one is how to control the energy - storage capacitor voltage below 450v

    本文對現有的單級pfc變換器拓撲進行了詳細的分析，指出在單級pfc變換器中，必須解決兩個問題：如何實現輸入電流整形和控制電容電壓在450v以下。
  3. In the skeleton extraction, an novel approach for extracting the skeletons directly from the gray images is developed by simulating the procedure of water eroding the topography surface. the resultant skeletons are single - pixel width and connected. it also lies in the middle line of the object and keeps the topological properties of the original image unchanged

    在骨架提取方面，論文提出了一種通過模擬水流沖刷地形表面的過程來直接從灰度圖象中提取目標的骨架的高效演算法，它可以得到連通的、保持目標的拓撲屬性的、處在目標的中線上的、近似單象素寬度的骨架。
  4. The increasing of single channel capacities and evolution of optical networks topology, from simple point - to - point to intelligent optical networks, call for strict demands to optical filters. in this paper, the crucial technologies of optical filters such as interleaver, optical digital filter, fused biconical taper all - wave coupler as well as polarization - pump combiner have been studied experimentally and theoretically, which include : 1. a new process, cascaded fbt ( fused biconical taper ) with precise control as well as strict interference arm length difference, is proposed for the first time to our knowledge

    單通道速率不斷提高以及網路拓撲由單一的點對點傳輸向可上下載的環網和可動態選擇波長路由的智能型格形光網路演進，對光濾波器的常規性能指標、時域特性和動態可調諧特性提出了更加苛刻的要求，鑒於此，本論文全面研究了全光纖熔錐型奇偶交錯濾波技術、數字光濾波技術、基於g - t全通濾波器的奇偶交錯濾波技術以及熔錐型全波耦合器和偏振泵浦合波器。
  5. In fact, it turns out that the monotone versions also characterize significant topological properties

    其實這種「單調形式」也反映了空間的重要的拓撲性質。
  6. To completely avoid producing elements jointed at their corner nodes and checkerboard patterns, which frequently occur when the topology optimization of plane continuum is studied, the theory of topology analysis of plane continuum in topology optimization process and the simple algorithm for programming are studied. according to algebraic topology theory, the boundary of elements and plane continuum are operated as a one - dimensional complex. by use of the adjacency vector in graph theory, the structural topology is described and the topological operation is achieved on a computer. by above, the structural topological feature in the evolutionary process is gained. these methods are effcient and reliable. under topology constraints, according to the results of stress analysis, by deleting elements and moving nodes at the boundary, more satisfactory results can be gained by using a few numbers of elements and iterations. to demonstrate the efficiency of these methods, solutions including some well - known classical problems are presented

    避免目前平面連續體結構拓撲優化過程中經常出現的單元鉸接以及「棋盤格」等現象，研究了連續體結構拓撲優化過程的拓撲分析方法，以及在計算機上實現的簡便演算法.根據代數拓撲理論，單元及連續體的邊界作為1 -復形進行運算.利用圖論中的鄰接向量概念，在計算機上實現了結構的拓撲描述及拓撲運算，得到了結構在拓撲演化過程中的拓撲特性，方法簡單、可靠.在一定的拓撲約束下，根據應力分析結果，採用刪除單元、單元退化、移動節點等方法，可以用較少單元得到更為滿意的結果，提高計算效率.為演示方法的有效性，給出幾個包括常見經典問題的解答
  7. Abstract : a new data structure that one link - list was composed of polygon - surface table, edge table and vertex table was proposed to describe the geometry information and topology information of control polyhedron m in the rese arch of modeling with closed surface. compared with other structures which were a pplicable to the work, the structure was understandable, economize and conveniently to modify. after describing the detail of the geometry information, topology inf ormation included in the tables of polygon - surface, edge and vertex, and the poin t - link form of the adjacency multilist between the tables, a concise instance was given in clanguage array

    文摘:介紹了在閉曲面造型研究中，為描述控制多面體m的幾何信息和拓撲信息而設計使用的一種單鏈三表的數據結構.與其他適用與描述控制多面體的數據結構相比，該結構在結合了鄰接多重表方法后的特點是:關系描述清楚，節省存儲空間，方便查找和交互修改形體.在介紹單鏈中三表（面表、邊表、頂點表）所含的幾何信息細節、以及單鏈的三表之間的表示面、邊、頂點拓撲關系的指針的鄰接多重連接方式之後，本文給出了以c語言數組方式簡明描述的數據結構實例
  8. Otherwise, ktrp has resulted in bypass routing between some wr. this thesis brings forward a method to improve ktrp aiming at the bypass routing problem. to improve ktrp, we basicly kept the tree - shaped topology, adding some physical loop to generate sigle - hop routing between some wr

    針對ktrp協議中樹形拓撲可能造成部分wr之間形成迂迴路由的問題，本文提出了一種改進方法，在基本保持wr的樹形拓撲基礎上，增加少量物理環路，使部分wr之間形成單跳路由。
  9. A new method that can be used to analyze the developability of a curved surfaces " mesh is proposed based on gaussian theory of mapping a curved surface onto a unit global surface. 3. a new method is proposed to homo - topologically map a triangular finite element mesh into a planar shape based on the assumption that the surface deformation is continuous and homogeneous

    3 、根據曲面變形連續均勻的特點，提出了一種基於單元等變形的三角形曲面網格拓撲等價映射演算法，將可展曲面與不可展曲面的網格採用統一的形式展開到平面上。
  10. In the second chapter, the lattice - valued fuzzy sets have been introduced si mply, furthermore, the vertion of ( monotone ) insrtion theorem on lattice in fuzzy topological space have been shown

    第二章簡單介紹了格值模糊集，且進一步給出格上（單調）插入定理在l -模糊拓撲空間中的表現形式。
  11. The algorithm is applicable to nonself - intersectant smooth surface set of any topology, including nonorientable surfaces, and its result is optimal surface triangulation in a way

    該演算法適用於包括單側曲面在內的光滑且不自交的任意拓撲曲面集，且重建結果是相對優化的曲面三角形剖分。
  12. Results revealed that there are strong interactions between spreading molecules and pei soft cushion, and pei ' s existing made the microstructure of the monolayers very different from that of the films deposited from pure water subph ase, and surface patterned topography formed

    結果發現成膜分子與軟墊之間存在著強烈的相互作用， pei的存在使得單分子膜的存在狀態與純水亞相上的單分子膜相比發生了很大的變化，形成了圖案化的拓撲結構。
  13. The thesis presents a group of direct ac / ac topologies including single and three phases ac / ac converters which are based on simple dc - dc topologies and realized by using the single - power tube four - quadrant switches. with only two power switches, these single or three phases ac / ac converters can achieve high quality four - quadrant ac / ac conversion by simple configurations and simple control schemes. the thesis mainly researches on the single phase ac / ac converter in the topologies including ac _ buck and ac _ cuk

    本文介紹了基於直流buck 、 boost和cuk電路，採用單有源四象限開關實現功率雙向化的直接ac / ac變換拓撲族，該拓撲族中的單、三相變換電路均只使用兩個功率開關，可實現波形優良的同頻ac / ac四象限變換，具有電路結構簡單、控制簡便、可實現小型化等優點。
  14. In this paper, we mainly discuss the topological structure of several classes of special fourth polynomial differential systems with the first and the third critical singular point. as in paper [ l ], mr han yuliang have discussed the system in the first critical case and the system in the third critical case ( where b, a30 0 in system ( l ) and ( 2 ) ) here, we use the tools and method of paper [ l ], to study the system where, 040, b04r - { 0 }, where, 640, ao4r - { 0 }, 631, 622513, b04er for the system ( 3 ) and ( 4 ), because of their only one finite singular points, and they are saddle - nodes, we can easily give the result that there is no limit cycle in their phase portrait

    本文主要是研究在第一及第三臨界情形下的幾類特殊四次多項式微分系統的全局拓撲結構，在文獻中，韓玉良主要考慮了第一臨界情形下的系統及第三臨界情形下的系統的全局結構，並畫出它們所有可能的全局相圖， （在（ 1 ） ， （ 2 ）中， b ： a _ （ 30 ） 0 ）本文根據文獻的工具和方法，考慮系統：其中，以及系統其中，這樣，由於等號右端多項式次數的增加，極限環的存在性問題變簡單了，但討論系統的全局結構時，特別是作全局相圖時，難度增大了。
  15. According to topological structure of control mesh, we generate generalized rational parametric surfaces in two manners. for a control mesh with consistent parameterization, the surface can be easily constructed because it can be mapped to differential manifold directly

    對于具有簡單拓撲結構，存在著一致的全局參數化的控制網格，我們將把控制網格直接映射到微分流形上，因此可以很容易地對曲面進行構造和控制。
  16. Because of the validity of topological representation of shapes, an algorithm for shape interpolation is presented by applying skeletal representation to control topological structure

    由於骨架簡單有效地表達了幾何形狀的拓撲結構，本文將其應用到變形問題。
  17. By employing the potential function, we construct the unit partition on differential manifold. and then, by regarding the curve and surface as a map from differential manifold to topological manifold, we present the framework of grpcs and discussed its basic properties in detail

    然後通過勢函數來構造微分流形上的單位分解，將曲線曲面看作微分流形到拓撲流形的映射，給出了廣義有理參數曲線曲面的整體理論框架，並對廣義有理參數曲線曲面的基本性質進行了討論。
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