critical graph 中文意思是什麼
critical graph
解釋
臨界圖-
The point at which branching of the graph occurs is called a bifurcation point and corresponds to a critical value of the load.
圖上發生分叉處的點叫分支點，它相當于荷載的臨界值。 -
Accordingly, using graph theory and operating experience abroad for reference, it firstly brings forward a new method of voltage rectification which based on pilot bus with voltage control area in view of the weak coupling among every vca ( voltage control area ), using decomposing method of multi critical value, it realizes the eliminating vinculum of every vca. and then, the rectification starts by pilot bus voltage of every vca. so the resolution of whole power net is diverted into calculating smaller sub - net
由於各個電壓控制區之間無功電壓的弱耦合性，利用多閥值分解的分區演算法，實現區域間的解耦，然後根據各個子網路的主導節點的電壓進行校正，從而把求解整個網路的問題轉化為求解各個小的子網路，降低了網路維數，減少了無功設備控制動作次數，提高了校正成功率，縮短了計算時間。 -
Scientific computation visualization interactive virtual reality computer dynamic simulation etc., to study thoroughly and carefully on critical technologies such as mixed - language programming simplification of scene models displaying realistic image and animation of 3d scene models and so on in this dissertation, the methods to build scene models were studied and applied to develop a dynamic simulation system of 3d railway scene based on this idea, the major study contents and results can be summarized as follows : 1 ) mixed - language programming can complement each other between different programming languages and the method has a general significance and can become popular many computation models including development of dtm optimum of dtm and reorganization of dtm were developed with fortran language in order to use the ripe codes, the dissertation succeeded in integrating the developed fortran codes to the visual c + + environment and achieving the course of mixed - language programming 2 ) the methods to build scene models for 3d location design were discussed in the dissertation and the development and animation of scene models had been realized by applying synthetically those technologies such as computer graphic computational geometry and geometrical modeling and computer dynamic simulation etc, and adopting opengl 3d graph library then achievement was got by using the technology of 3d visualization to livingly express design results 3 ) combing with the concerned study and development projects, adopting vc + + as development tools and in the light of those theories and algorithms stated in this dissertation, a software, which could build scene models with realism for 3d railway location design, in the name of " the dynamic simulation system of 3d scene of railway " was developed., the correctness was proved by using the software to build the 3d scene models and achieve their animation of suining - chongqing railway and yunnan - xizang railway
本文綜合利用計算機圖形學、科學計算可視化、人機交互、虛擬現實、計算機動態模擬等理論和技術，針對混合語言編程、真實感圖形繪制以及三維景觀模型的動畫驅動等關鍵技術，進行了深入細致的研究，從而探討了建立逼真景觀模型的方法，並基於本文提出的方法研製了一個鐵路線路三維景觀動態模擬系統。基於這一思想，本文主要研究內容及研究成果如下： 1 ）混合語言編程可以實現語言優勢互補，具有普遍意義。針對數字地面模型的建立、優化、重組等計算模塊是成熟的fortran程序代碼，本文成功實現了vc + +與fortran語言的混編； 2 ）緊緊圍繞三維選線設計中景觀模型的建立方法展開研究，綜合利用計算機圖形學、計算幾何及幾何造型學以及計算機模擬技術，採用opengl三維圖形庫，實現了景觀模型的建立以及動畫驅動，使得三維可視化技術成功應用於選線設計成果的三維直觀表達； 3 ）結合有關科研課題，利用vc + +開發工具，以本文所述的理論和演算法為基礎，研製和開發了一個建立三維選線設計逼真景觀模型的系統軟體- - 「鐵路線路三維景觀動態模擬系統」 。 -
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。 -
The paper introduced the space stability theory based on the method of the rotation of a cross section around a fixed axis of the thin - walled member, and made some simply discursions. according to the theory, a programme was worked out to analyse [ - shaped, t - shaped and l - shaped axes columns. using the results of the programme, the paper has made the graph of the critical force changing by, and furthermore analysed the characteristic of the thin - walled members " space stability
本文對基於繞定軸轉動理論的薄壁構件的空間穩定理論進行了介紹和簡單的分析論證，並根據此理論編程對「 [ 」形、 「 t 」形和「 l 」形軸壓構件進行了大量計算，作出其空間穩定臨界力隨長細比的變化曲線圖，對其空間穩定特性作了一定的分析。 -
This paper analyzes and develops the existing risk analysis model bases on term rewriting system. it divides the group of assets into critical and normal subset, and performs the analysis in separate procedure. this reduces the system complexity, guarantee the priority of the critical assets ; it also introduces and / or attack tree into the attack scenario, cut down the system requirement of space, and provides support for both the coming graph rewriting model and decision selection algorithm
本文針對項重寫風險分析模型中資產的關鍵性級別，劃分出關鍵資產，通過分步的風險分析，實現不僅可以降低系統復雜度，還能有效保證關鍵資產的優先處理;引入了與或攻擊樹構建攻擊場景，節約了運行所需的空間，為后來的決策選擇打下基礎，同時也為以後的圖重寫的風險分析提供依據。 -
With the decoupling average technique and high - temperature approximation, we obtain the graph of the system magnetization evolving, which clearly exhibit the critical slowing phenomena of xy model near the phase transition region
運用退耦平均技術，在高溫近似下數值模擬得出的平均磁化強度的時間演化，清楚地展示了xy模型在相變發生區域內的臨界慢化現象。 -
At the same time the new method ascertaining the location of the critical sliding surface of slope is presented in this paper according to the plastic zone graph at the time of land slide body sliding
在用有限元強度折減法求解邊坡穩定安全系數的同時，文中提出了一種利用滑坡體破壞時刻的塑性區圖確定邊坡臨界滑動面的方法。 -
In this thesis the theory and method of intelligent fault diagnosis for a large turbo - pump fed liquid - propellant rocket engine ( lre ) is innovatively proposed and developed, based on the hybrid reasoning strategy and the hybrid knowledge models including mathematical model, logic model, graphic model and qualitative model. the theory and method are constructed in the way of intelligent modeling technique and creative application of knowledge engineering, and focus on the difficult problems and critical techniques such as the unified treatment of lre knowledge ( experience, facts, rules, graph, system structure, behavior, model knowledge and measured data ), the integration and translation of qualitative and quantitative knowledge, and the knowledge - based intelligent fault diagnosis reasoning methods. firstly, besides the correlation of different knowledge, the concept and the types of lre diagnosis knowledge are systematically described
本文以某大型泵壓式液體火箭發動機為研究對象，以智能建模技術和知識工程的創造性應用為主要技術手段，圍繞著發動機知識（經驗、事實、規則、圖形、結構、行為、模型知識與測量數據信息等）的統一處理技術、定性定量知識的集成與轉化和基於知識的智能故障診斷推理等關鍵技術和難點，創新地研究發展了發動機基於混合知識模型（數學模型、邏輯模型、圖形模型及定性模型）和混合推理策略的智能故障診斷理論和方法。 -
The difference at low temperature and the concordance at high temperature still appear. analysis is made and all the results are shown in the form of graph. the result shows the tendency of the critical temperature ' s changing to the given particle number, when the quantum effect is major, is more slow than that got by the integral method
並利用所得能級找出了相互作用系統中粒子的狀態分佈、相互作用對激發態占據數的影響、不同作用下基態占據與溫度的關系以及相互作用對系統轉變溫度的影響，然後用圖形表現出有相互作用時和無相互作用時所得結果的區別。
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