bml 中文意思是什麼

bml 解釋
村上和成
  1. 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。
  2. Business management information layer bml

    商務管理信息層
  3. Bml business management layer

    商務管理層
  4. The open - boundary cellular automata traffic flow model in accordance with the practice was raised and simulated numerically on the basis of bml model

    在bml模型的基礎上,提出了符合實際情況的開放邊界交通流模型並對其進行了數值模擬分析。
  5. In this thesis, firstly we introduce the recent studies on traffic flow, which based on the statistical physics, secondly the fundamental principles and characteristics of one - dimension ( 1d ) determined ca model ( dca ) and two - dimension determined ca model ( bml ) are described in detail

    本文首先綜述了近期來物理學界在統計物理的基礎上對交通流的研究發展情況,然後詳細介紹了作為各類模型研究基礎的一維確定性模型dca和二維確定性模型bml的基本原理和特性。
  6. In this thesis. firstlv we introduce the recent studies on traffic flow. which based on the statistical phvsics. such as some theoretical approaches study modelstheir instructive significance and limits in practice. the fundamental principles and characteristics of one - dimension ( jd ) determined ca model ( dca ) and two - dimension determined ca model ( bml ) are described in details

    本文首先綜述了近期來物理學界在統計物理的基礎上對交通流問題的研究發展情況:各類研究方法,研究模型及模型對實際應用的意義及其局限性。詳細介紹了作為各類模型研究基礎的一維決定論模型dca和二維決定論模型bml的基本原理和特性。
  7. The paper utilizes the standards to describe the nel and bml models for special equipments in power system and fills the blank in this field, then establishes the basis in theory to realize the integrative power system communication network management based on services. hu wei ( electric power communication network ) directed by prof

    同時利用標準化建模的方法,構建了電力系統特定設備的網元層和業務層模型,填補了目前此方面工作的不足,為實現以業務為中心的電力系統綜合化網路管理系統奠定理論基礎。
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