拓撲分類 的英文怎麼說
中文拼音 [tàpūfēnlèi]
拓撲分類
英文
topological sorting-
Research and development of graphlike manifolds homeomorphism class
圖式流形拓撲分類的研究進展The topological structure is introduced to analyze homograph qualitatively, the algorithm is robust and insensitive to noises of images. the geometrical structure is used to analyze homograph quantitatively, the fine discrimination between planar objects can be shown
該識別方法對類似形應用拓撲結構進行定性分析，對噪音不敏感；同時結合幾何結構對類似形進行定量分析，能反映平面立體形狀的細微差別。6. we examined the mode and tempo of evolution of cyt b in oedipodidae. for these grasshoppers, the most common amino acids and codons are leucine ( tta ), isoleucine ( att ) and phenylalanine ( ttt )
運用cytb基囚的核』苦酸序列對斑翅蝗科昆蟲進行系統研穴時，各屬種問的分類關系都比較明確，得到的樹的拓撲結構大都一致。The ga that this paper designed can deal with these problems well because of its simplicity, robustness and high searching efficiency. this paper first describes the conception of access network and passive optical network. then we introduce the architectur of poan
在簡單介紹了接入網的基本概念、地位和作用后，分析了無源光接入網的基本概念、分類、工作原理、相關國際標準、典型的網路架構和拓撲結構。By structure the bounded cubic systems in the plane, we prove that : 1 ) the system ( 1 ) have distribution of critical point with 5 - 4 ( 5 critical points with index + 1 and 4 critical points with index - 1 ), 3 - 2, 2 - 1, + 1 ; 2 ) the bounded cubic systems in the plane which has only one critical point with index + 1 have at least 11 structures ; 3 ) the distribution of finity critical points of bounded cubic systems with same topological structure near the equator have different struction
摘要通過構造有界的平面三次系統，證實了（ 1 ）其有限奇點的5 4 （ 5個奇點指標為+ 1 ，另4個奇點指標為1 ） 、 3 2 、 2 1 、 + 1四種分佈均可實現； （ 2 ）僅有一個指標為+ 1的有限奇點的有界三次系統至少有11種類型； （ 3 ）赤道附近軌線拓撲結構相同的有界三次系統它們有限奇點的分佈可以有不同類型。Then the paper researches hbm ( hierarchy - based method ), a new method for classifying topological relations based on hierarchical cognition. and the combinative table reasoning methods of topological relation based on hbm are given
研究了空間拓撲關系的主要表示方法，主要研究了基於層次認知的拓撲關系分類方法hbm ，以及給出了基於hbm模型的拓撲關系的組合表推理方法。Through analyzing several current - prevailing geography information types and gis data formats, this paper proposes a both user - oriented and multi - resource - heterogeneous - information - system - oriented scheme that describes the urban space semantic information entity based on ontology. moreover, ontology - based topology and semantic relationship of the urban space entity are provided. this paper also presents a synthetic query model of ontology - driven space information and a methodology of semantic integration
本文在分析了國內外流行的gis系統的地理信息類型和數據格式的基礎上，提出基於本體論的，面向用戶應用、面向多源異構信息系統的城市空間語義信息實體的描述方法，提出基於本體的城市空間實體拓撲關系及語義關系，確立了本體驅動的空間信息的綜合查詢模型，以及語義信息集成方法。Note on topological classification of 3d and 2d spin states
態的拓撲分類的注記Early topologists set out to discover how many other topologically distinct entities exist and how they could be characterized
早期的拓撲學家就已開始探討究竟有多少拓撲上相異的物體，以及如何將它們分類。The classification of differential function germs whose codimention is less than or equal to 5 had been done by topologist r. thom
對于余維小於等於5的可微函數芽的分類，拓撲學家r thom早就已經給出了分類結果。Abstract : this paper uses the topology theory to analyze the surface flow spectrums of straight, positively curved and negatively curved cascades with relative tip clearances of 0. 023 and 0. 036, finds apparent differences of topology and vortex structures in the blade tip and the suction side wall corner of single type of cascade with this two clearances, and studies the mechanism of the difference formation as well as their effects on the energy loss
文摘:應用拓撲原理分析了葉頂相對間隙為0 . 023和0 . 036的渦輪直葉柵和正、反彎葉柵的壁面流譜，發現在兩種間隙下同類葉柵的拓撲與旋渦結構在葉頂和吸力面壁角明顯不同，探討了差別形成的機理及其對能量損失的影響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。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。To find the failure propagation mechanism from the inherent topological structure of the complex electromechanical system, the topological structure statistical properties of the system were analyzed with small world net theory, and a failure propagation model based on the small world clustering was proposed
摘要為了從復雜機電系統自身固有的網路拓撲結構出發來研究故障的傳播機制，採用小世界網路理論分析方法，對系統網路拓撲結構統計特性進行分析，建立了基於小世界聚類特性的故障傳播模型。Tree view is used in the web interface made the directory data looks more understandable. the function that implement are search entry, edit entry, delete entry, set group, set role, set access control and so on
基於web的目錄服務客戶端實現的具體功能有：分類查詢、修改密碼、條目的添加、刪除、修改、設置組、設置角色和設置訪問控制等，前臺頁面使用了樹型結構，直觀的反映了目錄服務器中數據的拓撲結構。The topologies family include single four - quadrant power switch mode, push - pull mode, half - bridge mode, and full - bridge mode circuits. taking full - bridge mode circuit as an example, the operational mode, steady principles, transient voltage feedback control strategy of the converter are investigated. the output characteristic curve, the design for the key circuit parameters and the reference sinusoidal circuit which is synchronous with the signal of n or 1 / n times line voltage frequency are given
該電路拓撲族包括單四象限功率開關式、推挽式、半橋式、全橋式電路，以全橋式電路為例分析研究了這類換器工作模式、穩態原理與電壓瞬時值反饋控制策略，給出了變換器的外特性曲線、關鍵電路參數、與電網電壓n倍頻或n分頻信號同步的基準正弦電路的設計。4 ) an algorithm for reliability upper bound assessment of large - size network is presented, which is based on the principle of topological classification of node - set ; and the lower bound can be also obtained by dual graph of oriented network.
應用圖論的點集拓撲分類原理，提出一個計算大型復雜網路可靠度上界的類分法，並應用對偶理論求解網路可靠度的下界。Type synthesis and topological description of spatial parallel mechanisms based on five - bar closed - loop structure
基於平面五桿閉環結構的空間並聯機構類型綜合與拓撲分析Stzware is a two and three dimension spatial analysis software based on realms math model developed by nuaa, and the two - dimension subset of this software defines spatial data types on 2 - dimension discrete grid, such as point set ( privpoints ), line set ( privlines ) and region set ( privregions ), and implements attribute operation functions of these 3 types and topology analysis functions among these 3 types
Stzware是由南京航空航天大學研製的基於數學模型realms的二三維空間分析軟體，其中的二維子集定義了二維平面離散網格上的空間數據類型:點集（ privpoints ） 、線集（ privlines ）和區域集（ privregions ） ，並實現了這三種類型的屬性操作函數和這三種類型間的拓撲分析函數。The low bounds of topological classes in k8 and k9 graphlike manifolds
9圖式流形的拓撲分類的下界分享友人