拓撲形式 的英文怎麼說

中文拼音 [tàpūxíngshì]
拓撲形式 英文
topological form
  • 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...
  • 式 : 名詞1 （樣式） type; style 2 （格式） pattern; form 3 （儀式; 典禮） ceremony; ritual 4 （自然科...
  1. As we all known, with the founding of euclidean geometry in ancient greece, with the development of analytic geometry and other kinds of geometries, with f. kline " s erlanger program in 1872 and the new developments of geometry in 20th century such as topology and so on, man has developed their understand of geometry. on the other hand, euclid formed geometry as a deductive system by using axiomatic theory for the first time. the content and method of geometry have dramatically changed, but the geometry curriculum has not changed correspondingly until the first strike from kline and perry " s appealing

    縱觀幾何學發展的歷史，可以稱得上波瀾壯闊：一方面，從古希臘時代的歐氏綜合幾何，到近代解析幾何等多種幾何的發展，以及用變換的方法處理幾何的埃爾朗根綱領，到20世紀拓撲學、高維空間理論等幾何學的新發展，這一切都在不斷豐富人們對幾何學的認識；另一方面，從歐幾里得第一次使用公理化方法把幾何學組織成一個邏輯演繹體系，到羅巴切夫斯基非歐幾何的發現，以及希爾伯特形式公理體系的建立，極大地發展了公理化思想方法，不管是幾何學的內容還是方法都發生了質的飛躍。
  2. Research and development of graphlike manifolds homeomorphism class

    圖式流形拓撲分類的研究進展
  3. Through ( multi - level ) bordered block partition of the power system topology matrix, a bbdf coefficient matrix which is suitable for above decomposition is formed. when the equation is solved with parallel iterative method, convergence acceleration is achieved through damping newton method

    通過採用（多重）對角加邊的方法進行電力網路拓撲分割，以形成適合以上分解法求解的對角加邊形式的系數矩陣，并行求解后並對迭代過程進行阻尼牛頓法修正，以達到加速收斂的作用。
  4. First, the paper summarizes a group building csg entity and makes combination mode of csg entities clear, by abstracting building model and analyzing building graphic objects. depending on this model, the article describes topology relations of the 3d architecture model inner based on the point, line, surface and entity. finally, in the developing environment vc + +, based on the opengl techniques, 3d building model of tyut office building is implemented by csg

    首先，通過對建築模型抽取和建築圖形對象的分析，總結了一組描述建築模型的建築csg體元，揭示了建築模型csg體元之間的組合形態，提出一種基於csg的組合建模方案來構造三維建築模型；然後在此模型基礎上進行了基於點、線、面、體的表達方式描述了建築模型內部拓撲空間關系，簡要介紹了建築模型的體裝配方法；最後利用opengl技術在visualc + +下實現了工大辦公樓的csg建模實驗。
  5. 4 - intersection theory in point set topology is cited into time domain and topological relation between several temporal forms are analyzed in detail. besides, the paper uses temporal topological relation to describe cadastral changing process particularly

    把點集拓撲學中的四元組理論引用到了時間域中，詳細地分析了幾種時間形式之間的拓撲關系，用四元組描述的時態拓撲關系對地籍變更過程進行了詳細的描述。
  6. In chapter 2, the nonlinear feature of iron core of transformer in switching power supply was studied. according to the characteristics of switching power supply, the topology structure of resonant converter was selected. the characteristics of out put voltage and current vs. frequency for the three kinds of resonant converter were analyzed and compared

    在第二章中，研究了高壓開關電源中高壓變壓器的非線性特性，選擇了諧振變換器作為高壓大功率開關電源的電路拓撲結構，並對三種形式的諧振變換器的電壓及電流頻率特性進行了分析比較。
  7. 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。
  8. The basic theory for all sorts of power factor correction is analyzed, and the topology and control circuit are studied

    分析了各種功率因數校正的基本工作原理，並從主電路的拓撲形式和控制方式分析了各類有源功率因數校正的方法。
  9. This thesis describes the main characters and development of pfc technology, analyzes the means and basal theory of all kinds of pfc technologies on structure of the main circuit and control mode, and illustrates the necessary and importance of the digital pfc

    本文主要介紹了功率因數校正技術的發展及主要特點，從主電路的拓撲形式和控制方式分析了各類有源功率因數校正的方法和基本原理，闡明了數字控制pfc技術研究的必要性和重要性。
  10. Based on the research of the blueprint, this paper introduces a new method to do the compress of the data. this new arithmetic is based on the description characters, using coordinate to memorize the information of the whole blueprint

    對線型圖形來講，最合理的壓縮方式是基於描述字格式，僅用較小的信息量，分別記錄圖紙上的元器件信息，用坐標位置來描述元器件符號之間以及和導線的拓撲關系，從而完成對整幅圖紙信息的壓縮存儲。
  11. The paper do n ' t attempt to definite new generalized metric space classes and new covers and mappings. this is because in the development of revent several decades in topology, the space classes were definited by all sorts of formal generalizations have reached a flooded extent, continual introduction of new spaces and over tiny division have made topology develop to an empty theorical margin

    本文不試圖去定義新的廣義度量空間類以及新的覆蓋與映射，這是因為近幾十年拓撲學的發展，各種形式的「推廣」所定義的空間類已達到泛濫的程度，新空間的不斷引入，過細的劃分使得拓撲學似乎發展到了空洞的理論邊緣。
  12. Secondly, this paper analyses data - delivering method, data - transmitting format and fault - control technology, studies and picks out direct sequence spread spectrum, accessing point network topology and the ieee802. 11b network rule, on the basis of which the harbor wireless communication system model is established. each composing part of the system ' s model is given out. the choice of hardware equipments and the design of communication software are expounded

    其次，本文對通信技術中的數據傳送方式、數據傳輸形式和差錯控制技術進行了分析，研究了港口無線通信系統中的傳輸方式、拓撲結構和網路標準等關鍵技術，選取直序擴頻傳輸方式、接入型拓撲結構和ieee802 . 11b網路標準作為港口無線通信系統的技術基礎，建立了港口無線通信系統模型，闡述了該模型的實現方法，包括硬體設備選擇和通信軟體設計。
  13. According to the complexity of pattern, the mined characteristic patterns could be sorted as frequent item, frequent sequence and frequent sub tree, etc. the paper builds tree - model of rna molecules and utilizes frequent sub tree mining algorithm to mine common topological patterns among rna secondary structures

    根據特徵模式復雜性，可分為頻繁項模式、頻繁序列模式以及頻繁子樹模式等。本文對rna分子建立樹形模型，利用頻繁子樹挖掘演算法挖掘rna二級結構中的公共拓撲模式。
  14. The frame knowledge representation approach is applied to the system in which the knowledge base and topology structural database of power network are saved as external databases

    該系統採用框架知識表示法，將知識庫與電網拓撲結構數據庫均做成了外部數據庫的形式進行存儲。
  15. In the first part, hilbert ' s 16th problem and the studies on it are introduced, and the results of zq - equivariant vector fields of degree 5 ( q = 2, 3, 5, 6 ) are given. in the second part, the definitions of zq - equivariant vector fields and the method of detection functions are stated, and all the forms of nontrivial zq - equivariant planar polynomial vector fields of degree 7 are obtained. in the third part, a concrete numerical example of zt - equivariant perturbed planar hamiltonian system of degree 7 is constructed, and for the unperturbed vector field having maximal number of centers, its global phase portraits are analyzed ( having at least 9 topologically different phase portraits ). then, for a given parameter group, its phase portrait trend is studied

    第一部分介紹了hilbert第16問題以及它的研究與發展現狀，給出了近年來利用李繼彬提出的判定函數法得出的z _ q -等變（ g = 2 ， 3 ， 5 ， 6 ）的5次系統關於它的第二部分的研究結果；第二部分介紹了z _ q -等變向量場以及判定函數法，給出了7次平面多項式系統的所有非平凡z _ q -等變向量場具有的形式；第三部分給出了一個7次平面擾動hamilton系統，研究了它的具有最大中心數的未擾動系統（ z _ 7 -等變）的全局象圖，得到了9種不同的拓撲圖形。
  16. 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
  17. The question of magnetic path is transformed into the form of circuit topology to derivate the equivalent circuit between stator and rotor

    為了便於分析，將磁路問題轉換成電路拓撲的形式，推導出定轉子之間的等效電路。
  18. Usually the fractal dimension of f ( defined in some way ) is greater than its topological dimension

    以某種方式定義的分形集合的分形維數通常是大於它的拓撲維數。
  19. So as to deal with this problem, local b - spline surface designing method with complicated trimmed boundary constraints is advanced. for two neighboring surfaces, we first trim a belt along the common boundary and then bridge a b - spline surface between these two trimmed surfaces with a smooth blending. with respect to the comer area comprised of several adjoining surfaces, a rectangular region covering the comer area is obtained by trimming operations at first, and later a local b - spline for filling the rectangular region is completed through interpolation or approximation

    在兩張相鄰的曲面之間，先在其公共邊界處裁剪出一個帶狀區域，然後再採用曲面搭接的方式實現曲面之間的光滑過渡；而在鄰接曲面的公共角點處，先在該角點附近區域裁剪出一個矩形拓撲域，然後運用插值或逼近的方法，設計出一張既滿足於該區域的邊界條件同時又插值或逼近內部采樣點的b樣條曲面。
  20. 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。
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