graph of a relation 中文意思是什麼
graph of a relation
解釋
關系圖-
The graph of electric main wiring is a kind of graphic express, and in this graphic express, it describes relation of electric energy ' s generation, transmission, distribution and topology with equipments
電網主接線圖是用電網一次設備來描述電能的發、輸、變、配電關系以及拓撲結構關系的圖形化表示。 -
( 3 ) a category - based dynamic graph. ( cdg ) structure, which supports the novel tactic of relation - oriented collision detection, is presented to improve the efficiency of collision detection and realize the attached motion in vr scene. ( 4 ) a dynamic 8 - tree structure and a relative self - similar recursion algorithm are presented to model a dynamic workpiece object, which is machinable
（ 3 ）提出並實現了基於分類的動態圖結構（ cdg ） ，該結構支持面向關系的碰撞檢測，很好的解決了虛擬cnc銑床環境下碰撞檢測的唯一性和完全性問題，在很大程度上提高了碰撞檢測的實時性，並實現了虛擬環境下的關聯運動。 -
Based on knowledge reasoning, fuzzy theory, extraction of sub - assembly and cluster, and hierarchical connection relation graph, an assembly sequence generation algorithm is studied in this paper, which breaks down the original complex assembly sequence generation problem into several small scale assembly sequence planning problems to reduce the computing complexity caused by cut - set theory. a hierarchical and / or graph to store all the generated sequences is also employed for this purpose
本文提出基於知識推理及模糊理論，結合子裝配與聚族提取以及裝配樹，利用層次聯接關系圖，將一個復雜的裝配序列求解問題轉化為若干個相關的小規模裝配序列求解問題，並用一種層次與或圖結構存儲裝配序列，使割集法求解裝配序列的計算復雜度大大降低。 -
In order to construct the attributed relation graph, a new real time method is developed, which computes the k - nn of the arbitrary planar sets using the distance transformation technique
為了構造屬性關系圖，論文提出了一種基於距離變換的確定平面子集的k ?近鄰的實時演算法。 -
Graph theory, finite group acting on sets, orbit and equivalent relation are used to discuss the layout structure of networks for heat exchange, and a feasible optimization algorithm is given
應用圖論、有限群對集合的作用、軌道與等價關系等刻劃了換熱網路布局結構，並給出了可行的優化演算法。 -
What we do at this aspect are : firstly, we describe the permutation symmetry of the structure of some special networks and the corresponding attractor sets with some geometric graphs in euclidean space, which are called attractors graph and geometrized structure graph of the networks respectively ; the geometrizing conditions are also given ; we study the dynamical behavior of the networks using the geometrized structure graph and attractors graph of the network ; moreover, we propose an approach to construct a big - size network with some small - size network with symmetry by the method of direct - sum, direct - produce and semidirect - produce. we also study the dynamical properties " relation between the big - size network and the small - size networks. all those results will provide some theoretical basis for designing a special large - scale network
本文在這方面所做的工作如下：首次將一些特殊網路的結構和吸引子集的置換對稱性用三維歐氏空間中的一些幾何圖來表示，分別稱之為幾何結構圖和吸引子圖；給出了網路對稱性的幾何化條州即相應的對稱性群為可遷群） ：並惜助網路的幾何結構圖和吸弓吁圖分析網路的動力學性質；此外，我們提出了用簡單的具有一定對稱性的小網路按照群的直和、半直積和直積的方式組合成較大的網路的方法，探討了這些小網路和所組成的大網路的一些動力學性質的關系，如穩定態的個數、各穩定態的回憶性質等，為較大網路的設計提供一些理論依據。 -
Secondllv in the 1 d random traffic flow model. the relation function between the correlation and the creation. disappearance. brake probabilities of the vehicles is presented. according to the statistical mechanical approach to the spatial correlation functions. the theoretical results agree with that of the computer simulation. thirdh. based on the bml model. a main - road traffic flow model with two speeds on two dimensions is designed. this model simulate the traffic situation of one main road and several branches in the cit traffic lights placed on the crossing. vehicles breaking ~ vhile running and turning to other direction while jamming. we investigate the ~ ' e1ocitv and flo ~ ~ of the model when the initial densitvthe brake and turning probabilities. the green to signal rati3. thc number of the branches and the period of the signal are changed. then the reasons causing all the kinds of phenomena are analvzed. finallv. we simulate the bml model using the method of lattice boltzmann which ~ vas brought out by liu mu - renand obtain the velocity - density graph similar to the previous result. the upper critical densiw above which there are oniv jamming configurations. and the lo ~ ver critical density below which there are only moving configurations are the same as before. the boltzmann function which is on the lattices shows the moving and jaxmning transition obviouslv. thus it proves the possibilit of this method on the traffic research
接著，建立了和研究了二維二速的主幹道模型，該模型模擬了城市交通中一條主幹道，多條支道的交通情況，在幹道與支道的交叉路口設置紅綠燈，車輛在運行中可以有對突發事件發生反應的剎車，在發生堵塞時，路口的車輛可考慮通過轉向來緩解交通等各種實際情況的發生，給出了車輛演化的演化方程，並通過計算機模擬，研究模型在改變車輛的初始密度、剎車概率、轉向概率、支道數、紅綠燈信號的綠信比、紅綠燈信號周期等各種情況下支、主幹道車輛的速度、流量的變化，並分析在各種情況下交通狀況的成因，提出改善交通的有效措施。最後，在劉慕仁提出的用格子boltzmann方法研究一維決定論交通流的思路下，將此法推廣到對二維bml模型的模擬上，得到了與用以往方法的研究結果相類似的速度-密度圖線，且車輛從運動相到堵塞相轉變的上下臨界密度是一致的，同時分別給出車輛在處于暢通相和堵塞相時， boltzmann函數在格子上的分佈情況，進一步驗證了此法的可行性。 -
Abstract : the feature definition and the feature classification are given firstly. then the constraint - based parametric feature model of mechanical part is set up. a graph called feature relation graph is used to represent the feature model and a dynamic linked list to build and store the model. using the oop technique, the author realized the feature model. based on the parametric feature model, the feature hierarchical parametrization is analyzed and a parametric example is also given
文摘:首先系統給出了機械產品造型領域特徵的定義以及特徵的分類；其次，建立了基於約束的機械產品零件的參數化特徵模型，並用特徵關系圖的形式表達特徵模型，同時採用動態鏈表構建特徵模型並用面向對象技術實現了零件的參數化特徵模型；最後結合實例分析了基於特徵模型的零件特徵分級參數化實現過程。 -
This thesis analyzed the relation of parameters describing humidity of humid air. based on traditional operating methodology of h - d graph, a program for drawing dynamic h - d graph and analyzing air conditioning process was developed. it would be used for analysis of air conditioning process and system design
3 、針對傳統h - d圖作業靜態、單一的缺點，本文對描述濕空氣濕度的物性參數及其相互關系進行了分析，在傳統濕空氣h - d圖作業的基礎上，結合h - d圖的動態繪制和熱濕過程處理，開發了濕空氣h - d圖及熱濕過程分析程序，為濕空氣過程分析、系統的設計提供了基礎和分析工具。
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