車流密度 的英文怎麼說

中文拼音 [jūliúmìdù]
車流密度 英文
traffic density
  • 車 : 車名詞1. （中國象棋棋子的一種） chariot, one of the pieces in chinese chess2. （國際象棋棋子的一種） castle; rook
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 密 : Ⅰ名詞1 （秘密） secret 2 [紡織] （密度） density 3 （姓氏） a surname Ⅱ形容詞1 （距離近; 空隙小）...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 車流 : current of traffic
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    一般壓力表氣壓表抗震壓力表充油壓力表全不銹鋼壓力表膜盒微壓表電接點壓力表冷媒壓力表真空壓力表壓力真空表隔膜壓力表微型壓力表差壓表微差壓表絕壓表精密壓力表耐高溫壓力表蒸氣壓力表汽車燃氣壓力表醫用壓力表遠傳壓力表衛生型壓力表壓力表緩沖管壓力表冷凝散熱器壓力表翅片散熱器壓力表開關不銹鋼連接彎管不銹鋼連接軟管轉換接頭油壓連接頭壓力表針閥節流閥及過壓保護附件濾油網加油口油溫油麵計雙金屬溫度計等。
  2. The high - density hong kong environment is ideal for the use of escalators and travellators. for instance they may be used to cope with large numbers of pedestrians and speed - up long - distance links to railway stations and ferry terminals

    香港的高密度環境很適宜使用扶手電梯及自動行人道，這些設施可應付大量的人流，讓行人快捷地通往鐵路車站或渡輪碼頭。
  3. Second, we introduce a two - lane traffic model which is based on the ( 0, 2 ) and ( 0, 1, 2 ) models. we mainly study the coupling effect of lanes. in two - lane traffic, vehicles can change lanes and overpass. the interactin between lanes is considered as coupling effect. the computer simulation indicate that ( dthe current of the system with cupling is greater than that without coupling ; 0for a certain initial density, the average flow and speed are indepent on the coupling coefficient which is greater than zero ; when the initial densities ( speeds ) of lanes are different, the characters of traffic system will be different

    在單車道模型的基礎上，建立v _ （ max ） = 2雙車道模型，研究車道的耦合效應。雙車道模型中車輛可以進行轉道、超車，兩道之間有耦合作用。模擬結果說明，有耦合時系統的流量比沒有耦合時大；在固定的初密度條件下，只要耦合系數b 0 ，兩道間的耦合強弱對流量和速度無影響；兩道初密度分佈不均勻和速度分佈不均勻都能使交通系統特性發生變化。
  4. When the model is applied to traffic flow without overtaking flow, the flow - density relationship is obtained

    將模型應用於無超車換道交通流，求出了流量和密度之間的關系。
  5. Based on these models, a main - road traffic flow model with two speeds on one dimension is designed. this model simulate the situation of one road in the city, traffic lights placed on the crossing, using the computer simulation, firstly, in the case of synchronized traffic lights, we investigated the velocity and flow of the model when the initial density, the turning probabilities, the number of the traffic lights, the green to signal ratio and the period of the signal are changed, then we have advanced some meliorate measure to traffic flow ; secondly, in the case of the traffic lights " signal update delay in turn, we found the optimal matching between the period of the signal and the delay time of the traffic lights so as to the perfect velocity and the flow of the model are attained

    在此基礎上，建立了一維二速主幹道模型，該模型模擬了城市交通中一條主幹道的交通情況，在交叉口處設置紅綠燈，通過計算機模擬，首先，在交通燈信號同步更新的條件下，研究模型在改變車輛的初始密度、轉向概率、交通燈個數、紅綠燈信號的綠信比、紅綠燈信號周期等各種情況下主幹道的速度、流量的變化，根據模擬結果提出一些改善交通的有效措施；其次，在交通燈信號依次延遲更新的條件下，研究模型在參數道路長、紅綠燈綠信比、交通燈個數、車輛的初始密度給定的情況下找到紅綠燈信號周期和延遲時間的最佳匹配使得主幹道的速度、流量達到最理想的值。
  6. From the viewpoint of macro dynamic characteristics of freeway traffic flow, this paper classifies the freeway, gives a nonlinear macro dynamic traffic flow model of freeway using density and speed as state variables and then identifies the parameters by using searching approach step by step, finally gives an identification instance

    摘要從高速公路交通流的宏觀特性和動態特性出發，對高速公路進行了兩級分段，以車流密度和車流速度作為狀態變量，給出了高速公路非線性的宏觀動態交通流模型，進而採用直接搜索法對模型中的參數進行了分段辨識，並給出了辨識實例。
  7. We also analyze the influence of the boundary condition 、 safety distance and deceleration probability to the traffic flow. finally, we propose an crossroad modle. this model is made up of one main road and one branches ： traffic with lights placed on the crossing, vehicles " breaking while running and turning to other direction while jamming. we investigate the velocity and flow of the model when the initial density, the brake and turning probabilities, the green to signal ratio are changed. then the reasons causing all the kinds of phenomena are analyzed

    最後研究了周期性邊界條件下的十字路口的ca模型，該模型由一條主幹道和一條支道組成，在幹道與支道的交叉路口設置紅綠燈，車輛在運行中對突發事件發生反應的剎車，路口的車輛可以轉向等各種實際交通行為，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、紅綠燈信號的綠信比等各種情況下支、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。
  8. 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。
  9. The design and simulation of electric vehicle drive system with high frequency ac pulse density modulation

    電動汽車高頻交流脈沖密度驅動系統的設計與模擬
  10. The simulation results prove that the pdm control theory can be fit for the high frequency ac link power conversion distribution system, especially be suitable for the electric driver system of the electric vehicle in the future

    模擬結果表明，本文提出的這種高頻交流脈沖密度調制技術適用於高頻交流環節功率變換分佈系統，特別適合於作未來電動汽車的高頻交流驅動系統。
  11. Based on traffic flow theory, speed and density is used to describe traffic movement

    摘要以交通流理論為基礎，用車速和車流密度來描述車流的運行狀態。
  12. Simulation is used to analysis the tendency of congestion equilibrium and the tendency of congestion level with density change

    用數值模擬的方法分析擁擠度隨車流密度的變化趨勢，及擁擠平衡的變化趨勢。
  13. Good measures of passenger operation and train operation can reduce the operational delay and its influence on the passenger density at platform, the process of going up and down, the capability of passenger transportation

    摘要分析了運行延誤對站臺乘客密度、乘客上下車過程和客流輸送能力的影響，提出了減少運行延誤對客流輸送影響的行車組織和客運組織措施。
  14. As we all know, it can be used to measure not only magnetic field, but current, velocity, position, angle and rotate speed. as a key component, hall sensors are wide playing role in precisely measure, industrial control, automotive electronics, home electrical products and so on

    它不僅可以用來測量磁場，還可用於測量電流、速度、位置、角度和轉速等物理量，在精密測量、工業自動化控制、汽車電子、家用電器等領域獲得廣泛應用。
  15. Permanent magnet blushless direct current motor ( pmbldcm ) has been paid more attention in the past two decades by researchers in the motor and control system fields because of its excellent performance, for example, small cubage, great power density and high efficiency

    永磁無刷直流電動機體積小，功率密度高，控制性能好，效率很高，在工業、車輛、家電、計算機及軍事等諸多領域得到廣泛應用，尤其在電動車應用領域倍受青睞，是當前電動車電動機研發的熱點。
  16. The research and contribution in detail are introduced as follow : ( 1 ) the driver characteristics > motor vehicle characteristics, road characteristics, macroscopic and microscopic flow parameters are analyzed. a new traffic flow continuum hypothesis is proposed. the compression index and elasticity coefficient are defined

    具體工作如下： （ 1 ）綜合分析了交通流中駕駛員的交通特性、車輛的交通特性、道路的交通特性、交通流的宏觀參數和微觀參數，提出了新的交通流連續性假設，定義了衡量交通流壓縮性的壓縮系數和彈性系數，分析了各種速度-密度模型所對應的壓縮系數。
  17. Road vehicles. cooling fluids. test methods. part 1 : measurement of density using an areameter

    道路車輛.冷卻流體.試驗方法.第1部分:用比重計對密度的測定
  18. An improved one - dimensional ca traffic model was proposed to describe the freeway traffic under the periodic boundary conditions. this model was based on the nasch model, it can describe stop - and - go traffic, which gives a better description of the phenomena observed on highways with a slow - to - start rule

    在元胞自動機交通nasch模型和fi模型的基礎上，基於交通流中實際車輛的慢起動行為，進一步提出一種新的一維交通流元胞自動機模型，在臨界密度附近，存在著亞穩態和滯后現象。
  19. The paper designs a set of technics flow of producing recycled aggregates and uses scrap concrete in wuchang vehicle factory to manufacture some recycled aggregates, and researches the basic properties of recycled aggregates such as apparent density, absorption, crush index, compacted density, porosity, etc. and analyses the properties change of recycled aggregates after the respective surface treatment with the polymer and polysilicone waterproofing agents, and then obtains the result that their absorption decreases and their properties improves after recycled aggregates are surface treated

    本文設計了一套生產再生骨料的處理工藝流程，並利用武昌車輛廠的廢棄混凝土製備了一定量的再生骨料。對再生骨料的表觀密度、吸水率、壓碎指標、容重和孔隙率等基本性能進行了研究，分析了分別採用聚合物和有機硅防水劑進行表面處理后的再生骨料的性能變化。從而得出經過表面處理后再生骨料的吸水率有所降低，性能有所改善。
  20. The network module, based on the embedded system, will get the information, including vehicle type speed queue length and swerving status, from the processing module and send them to the control center by tcp / ip protocol, synchronously, when some event happens, the network module will send image serial which got from the compress module

    對于交通信息設備中的網路模塊，在移植了嵌入式操作系統的基礎上，將處理模塊得到交通流量，車輛類型，車輛速度，排隊長度，轉彎情況，交通密度等信息通過tcp ip協議發送至控制中心，同時，對於事件發生時，將壓縮模塊中的圖像序列發送至控制中心。
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