道路單元 的英文怎麼說
中文拼音 [dàolùdānyuán]
道路單元
英文
roadway element-
Abstract : propagation characteristics of r wave in a pavement structures are analysed in this paper. based on the propagation characteristics of r wave, the horizontal propagation wave is simulated by using r wave, the vertical propagation wave is also simulated by using body wave in calculating dynamic response of pavement structures. the availability and accuracy of dispersion curves measured by sasw in pavement structures is analysed by using the presented method used to calculate dynamic response
文摘:利用有限單元法分析了道路結構的r面波傳播特性：在深度方向上衰減較慢，傳播較深，波動性大.提出了在道路結構動力響應計算中，利用面波來模擬水平向傳播波，利用體波來模擬豎直向傳播波.通過算例來驗證該方法的可靠性和精確性，並利用這一動力響應計算方法分析了道路結構表面波測試中所獲彌散曲線的可靠性2. 12ch simultaneous interpretation. 3. automatic numbering on system units
2 .多路通道採用同一發射單元This paper, on the basis of yuelu - mountain high - tech park in changsha city, beginning with the investigation of diversiform transit - trip in the park, firstly analyzes and evaluates space - time change law of traffic flow and situation of traffic service level on actual road net - work in the park ; secondly, applying multi - statistical analysis method, taking investigated corporation as sample, using annual freight traffic volume produced by unit plant area of the corporation, with clustering analysis, obtains four sorts of the sample corporation, and establishes the predict models of freight traffic volume for every kind of corporation. with these models, actual or planning year ’ s day maximum freight traffic volume can be predicted. the third, this paper makes analysis research of trip law of employees in the park, and obtains the index of trip times, trip modes and trip development trend of the employees
本文以長沙市嶽麓山高科技園區為依託，從調查園區內的各類交通出行開始，首先分析評價了園區內現狀道路網上的交通流時空變化規律及道路網上的交通服務水平狀況;其次是應用多元統計分析方法，以調查企業為樣品，以企業單位車間面積所產生的年貨運交通量為變量，通過聚類分析，獲得了樣本企業的四個類別，並建立了各類企業貨運交通量的預測模型，應用這些模型，可預測園區內現狀或規劃年的日最大貨運交通量;第三是對園區內企業員工的出行規律做了分析研究，獲得了企業員工的出行次數、出行方式及出行發展趨勢等等特性指標;最後是對園區內小區居民的出行狀況進行了分析，獲得了居民出行的諸如高峰時段、高峰出行量等等的特徵數據。Then we introduce the character of the atmosphere channel, which we emphasized on the atmosphere scatter, absorption and scintillation ' s effect on the laser beam. in chapter, we explain why we used cassegrain telescope to collect the optical signal at first, then the lightsource, detector, front amplifier used in optical communication has been compared to that of fiber communication, the noise including shot noise, thermal noise and background light noise has been explained here for analysis the snr and ber in the next section
在第三章介紹無線光接入系統的光收發單元，採用多孔徑卡塞格倫式的收發天線對消除減小大氣湍流影響有較大作用，針對大氣通道的特點無線光系統收發單元在光源、光探測器、前置放大電路上存在許多有別于光纖通信的技術，同時還闡述了光接收機包括背景噪聲的噪聲機制和接收靈敏度、誤碼率等指標，最後給出了一個整個傳送鏈路的功率預算。Secondly, in view of the limitation and shortage of traditional simulation of finite element approaches for bolt, a new composite grouted bolt element including nonlinear contacting relation will be built based on the above study of the mechanics mechanism of fully grouted bolt. then, an elastic - plastic finite element program will be developed for the analyses of tunnel stability, in which the composite grouted bolt element and nonlinear finite element analysis method will be used ; the patterns and the affect of main design parameters on the support effect of bolt will be analysed using the program, and conclusions of guidance importance for tunnel support design will be drawn. finally, simulation compution for the excavation and support of a highway tunnel will be made out using the above production, and the method of application of the program will be discussed ; analysis of the deformation, stress and distribution of plastic range will be done, and rational support plan will be worked out, which is of guidance importance for tunnel support design and the thery and technique of fully grouted bolt used in tunneling will be perfected further
首先，本文在綜合分析隧道穩定性影響因素及失穩破壞模式的基礎上，對全長粘結式砂漿錨桿作用力學機理進行了深入研究，為全長粘結式砂漿錨桿的有限元模擬分析奠定了基礎;其次，針對傳統錨桿有限元模擬方法的局限性與不足，在上述全長粘結式砂漿錨桿作用力學機理研究基礎上，建立出能反映界面非線性粘結的新型復合砂漿錨桿有限單元模型;然後，運用上述復合砂漿錨桿單元模型，引進非線性有限元分析手段，開發了隧道支護穩定性分析的有限元程序，並就全長粘結式砂漿錨桿的型式與設計參數對支護效果的影響進行了深入探討，得到了對隧道支護設計具有指導意義的結論;最後，運用本文研究成果對某公路隧道工程實例進行了開挖與支護的模擬計算，探討了其應用方法，並就隧道變形與應力及塑性區分佈規律進行了分析，從而提出了合理的支護方案，為隧道支護設計提供了參考依據，完善了隧道全長粘結式砂漿錨桿支護的理論與方法。According to the engineering experiences obtained from the laying of a jointless track of high - speed communication line - line 3 in dalian city, this paper introduces in general the laying technology, particularly the long rail welding, the construction site welding, seamless track spreading and trak controller laying, and discusses problems often occuring in long rail wedling and seamless track laying
摘要根據大連市快速軌道交通3號線一次性鋪設碎石道床無縫線路的工程實踐，介紹了長鋼軌基地焊接、單元軌節的工地焊接；無縫線路鎖定和鋼軌伸縮調節器的鋪設等技術，並對長鋼軌焊接和無縫線路鋪設中應注意的問題進行了探討。Dividing road cell is the necessary precondition to develop road safety evaluation method
道路單元劃分是建立道路安全評價方法的必要前提。Calculation results of the program efficiently found the road cells that have more accidents
該程序的計算結果有效的截取出了事故集聚的道路單元。In the research, the first aspect is base of the total ; the other two aspects are focus and emphasis
其中以劃分道路單元為研究基礎，以建立基於廣義線性回歸模型和貝葉斯統計的道路安全評價方法為核心研究內容。Basic principle and method to divide road cell are studied, and the corresponding program is compiled by visual basic application program
本文給出了動態道路單元劃分的基本思想，並且基於visualbasicapplication語言編制了相應的計算程序。Multivariate regression empirical bayes approach can obtain excepted values and variance from accident model, hence it can overcomes the limitation of empirical bayes approach which needs great quantity of similar road cells
多元回歸經驗貝葉斯法利用事故模型來獲得事前分佈的均值和方差，從而克服了經驗貝葉斯法需要大量參照道路單元的缺陷。Therefore, study on road traffic safety certainly has great value 。 the paper studies three aspects of contents, including dividing road cell, developing safety level evaluation model and developing bayes statistic ? road safety evaluation method
因此，進行道路交通安全研究必將具有重要的現實意義。論文研究工作包括劃分道路單元、建立安全水平評價模型和建立基於貝葉斯統計的道路安全評價方法。Concretely, on the basis of describing the communication specification of arinc 429 with enhanced parallel port ( epp ), the standard and the module application of dsp and cpld, the thesis has proposed the design of the arinc 429 technology based on dsp system. at first, the function and the application of each module of the system and the operation principle of high - performance cmos bus interface circuit hs - 3282 chip which forms the main body of the data diversion of the interface module are introduced. secondly, the hardware structure of the interface module is described in detail, mainly including data latch and buffer circuit, choice circuit of transmission rate, etc. and then the design philosophy and flow charts of the software are fully discussed, such as the basic requirement of software, the design and realization of the function
本文在簡單的論述了pc並口協議（ epp ）與dsp之間的通信方法、 cpld模塊邏輯控制應用和arinc429的通訊規范的基礎上，給出了基於dsp的arinc429通訊介面的設計方案:對通訊板中各模塊的功能和應用以及構成數據轉換主體的總線介面晶元hs - 3282的工作原理做了說明;介紹了本設計所用的dsp和cpld的功能概況;詳細敘述了通訊板介面模塊的硬體結構設計，其中，對數據緩沖電路、數據傳輸速率選擇電路、邏輯控制電路等各關鍵點做了重點介紹;具體闡述了軟體設計思想及流程圖，包括軟體的基本要求和功能的設計與實現;接著從埠譯碼單元、 i / o通道、電平轉換電路等方面進行了介面模塊的軟、硬體調試;最後，給出了測試結果，對研製工作做了總結，對本設計的優缺點各做了評述。In the simulation model, the cellular automata model is applied to describe the tunnels system, and a cellular is used to represent an energy unit of flame, which is eradiated from the fire - point and contains such status parameters as temperature, velocity, smog density, density of poisonous gases
在該方法中，用元胞自動機模型描述地下礦巷道網路系統，用元胞來描述火焰蔓延能量單元，該單元用火焰溫度、蔓延速度、煙霧濃度和有毒氣體濃度等狀態參數來描述。The basic principle of natural gamma - ray log is stated, the developing background, developing ways and developing situation of natural gamma - ray tools are introduced. the researching task of the paper is presented through analyzing the using situation and questions exsisted in inner natural gamma - ray tools, the researching work is started from three aspects, they are logging tool development, reliability design and reliability assuring methods, and the data processing methods, in the course of logging tool development, instrument indexes are presented based on the compatible property of sookbps telemetry system and environmental property, the analog measuring chanel and the interface circuit which realizing the compatible performance are designed according to the instrument mdexes. the detecto * design. the plateau property testing of the detector and the analysis of it ' s affecting factors are stated, the measuring property of the tool is discused, a new type of single chip microcomputer is selected when designing the interface circuit, and the laboratory experiments has fulfiled conmunieating standard signals between the interface circuit, the universal interface unit of sookbps telemetry system and also 500kbps telemetry system
本文首先概要介紹了石油測井的基本概念、方法、條件、最新進展、以及應採取的研發對策，論述了自然伽瑪測井的基本原理，介紹了自然伽瑪測井儀的發展背景、發展歷程和發展現狀，通過分析國內自然伽瑪測井儀的使用情況和存在的問題，提出了本文的研究任務。研製工作從測井儀研製、可靠性設計與可靠性保障技術、數據處理方法研究三個方面展開，在測井儀研製過程中，根據500kbps遙傳系統要求的配接性能和使用環境特徵，提出了主要儀器指標，並根據這些指標，設計了儀器模擬測量通道和實現這一配接性能的介面電路；論述了探測器的設計、坪特性影響因素分析及其測試，探討了儀器的測量性能；在設計介面電路時選用了新型單片機晶元，並與500kbps遙傳通用介面單元rtu 、 500kbpa遙傳系統實現了室內配接。Primarily there are two aspects : 1 ) the calculation model of the value of land classifying units - - model of time distance attenuation. in the calculation model of the value of land classifying units, author brings forward the model of time distance attenuation. in this model adopting the network analysis, and by establishing the road network, and proceeding path analysis, computing the time distance, then proceed the exponential attenuation or straight line attenuation on time distance, get the value of influence factor of the land classification unit
主要有兩個方面： 1 、定級單元分值計算模型? ?時間距離衰減模型在定級單元分值的求取模塊中，提出了時間距離衰減模型，模型中採用網路分析的方法，通過建立道路網路，進行路徑分析，求取時間距離，進而按時間距離進行指數衰減或直線衰減，得到定級單元因素因子影響分值。The geomorphological instantaneous unit hydrograph ( giuh ) is viewed as the frequency distribution of the times of arrival of individual water deoplets at the catchment outlet. the travel path, for a typical hillslope cell. consists of a hillslope fraction, corresponding to overland flow and a stream fraction, corresponding to concentrated channeled flow. to obtain the time of travel, velocities must be defined. hillslope and stream velocities vary with location and must be strongly correlated with slope, and therefore a spatial distribution of velocities and hence of travel times could be obtained. the present methods of giuh neglect any time delays associated with overland flow pathways
地貌單位線被看作是流域上各水質點在弱相互作用下，到達流域出口匯流時間的頻率分佈。對於一個典型的山坡型網格單元，匯流路徑由兩部分組成，即坡地部分和河道部分，為了得到匯流時間，必須首先確定匯流速度。坡地和河道的匯流速度隨著區域位置而變，並且必然與坡度有關，因此，可首先計算流速的空間分佈，進而得到匯流時間的空間分佈。The change of energy in wall rock is tracked in the whole process and the amount of energy transferred to linings is also evaluated. 5 ) based on the principal of energy invariance and the energy properties of sfrc, a practical design equation that related the thickness of projecting sfrc to the energy related properties of tunnel is given in the end. this equation is then used to design a single - track railway tunnel in iii grade rock condition
並進一步推導了不同形式的構件間的能量耗散關系，為將標準試驗的能量統計結果運用於實際結構中打下了基礎； 4 ）利用有限元軟體對隧道開挖過程進行了三維模擬，得到了隧道圍巖在開挖掘進過程中的能量轉化趨勢和規律，得到了鋼纖維噴射混凝土襯砌在支護過程中的能量變化； 5 ）利用能量守恆原理和已經推導出的構件能量耗散關系，建立了鋼纖維噴射混凝土襯砌厚度與圍巖開挖能量變化間的關系，並運用此方法對級圍巖條件中的鐵路單線隧道的鋼纖維噴射混凝土襯砌進行了設計計算；The designs of the system ' s hardware includes the designs of the circuits that drive the ccd and the circuits that process the video signals, the designs and calculates of the optical imaging svstem, and the track inspection sub - board
裝置硬體包括ccd的驅動電路和視頻信號處理電路設計、光學成像系統的設計計算、以及軌道檢測單元板的設計。Since epon is a multipoint - to - point system, a major feature for this new architecture is the use of a shared transmission media between all users ; hence, medium access control arbitration mechanisms are essential for the successful implementation of epon : ensure a contention - free transmission and provide end users with an equal access to the shared media
由於epon特殊的點到多點的網路拓撲結構，在上行方向各個光網路單元onu （ opticalnetworkunit ）共享通道帶寬，採用時分多址tdma的方式發送數據，因此需要採用媒體接入控制（ mac ）協議來協調各個onu的發送，避免上行數據的沖突。分享友人