模擬過程時間 的英文怎麼說
中文拼音 [mónǐguòchéngshíjiān]
模擬過程時間
英文
simulation process time- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 擬 : 動詞1. (設計; 起草) draw up; draft 2. (打算; 想要) intend; plan 3. (模仿) imitate
- 過 : 過Ⅰ動詞[口語] (超越) go beyond the limit; undue; excessiveⅡ名詞(姓氏) a surname
- 程 : 名詞1 (規章; 法式) rule; regulation 2 (進度; 程序) order; procedure 3 (路途; 一段路) journe...
- 時 : shí]Ⅰ名1 (比較長的一段時間)time; times; days:當時at that time; in those days; 古時 ancient tim...
- 間 : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
- 模擬 : imitate; simulate; analog; analogy; imitation; simulation模擬艙 boilerplate; 模擬電路 [電學] circ...
- 過程 : process; procedure; transversion; plication; course
- 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
-
The author conceptualized and measured the following variables : time perspective ; the coping style ; reduced harm internet use self - efficacy ; positive peer involvement ; moderate parents involvement ; the totality of internet use and the score of functions. after the research used the structure equation model ( sem ) to fit the collected data, the following pathways were demonstrated at the significant level : 1, the time perspective present ( tpp ) piu. 2, tpp abreaction piu
通過時間透視、應對策略、減少傷害性的網際網路效能感、積極同伴捲入、適度父母捲入、網路(使用)總量、功能分數的界定與測量,該研究使用結構方程模型擬和數據后發現下列路徑對piu具有明顯的預測作用:現在定向piu ;現在定向發泄piu ;現在定向問題解決piu ;現在定向同伴捲入piu ;現在定向同伴捲入功能分數piu ;未來定向問題解決piu ;未來定向父母捲入piu ;未來定向發泄piu 。And the deficiencies are pointed out in present researches, such as highway capacity, level - of - service, influence factor of road alignments, etc. from these, it has confirmed that the thesis should be studied from rational analysis, quantitative analysis of level - of - service, impact on capacity of road alignments, setting - up simulation model, etc. the high - accuracy gps dynamic data acquisition appearance is proposed to be used for the first time to carry on the experiment of overtaking on two - lane highways, and experiment scheme is designed according to the driver ' s perceive to judge each overtaking course. based on the experiment data, it can get two important parameters of acceptant gap ? the critical gap of overtakable time headway and returnable time headway through data processing, which can offer the strong support to the research of two - lane highway capacity with qualitative and quantitative analysis. besides, the experiment methods is provided to observe overtaking ratio and to measure the
研究中首次提出了運用高精度gps動態數據採集儀對雙車道公路上的超車行為進行觀測,設計了根據駕駛員感受度來衡量超車過程的實驗方案,並通過後期數據處理得到了超車過程中兩個重要的可接受間隙參數-可超車車頭時距和可回車車頭時距的臨界間隙值,為定性和定量分析雙車道公路通行能力提供有力的數據支持;同時,還提出了觀測超車率的實驗方法以及測量加速度干擾的實驗方案,統一了計算加速度干擾的時間統計間隔,為雙車道公路的服務水平量化研究奠定基礎;最後還簡單介紹了駕駛員問卷調查法和模擬程序中模型參數標定和驗證的數據採集方法。Based on studying of the unequal rainfall in space - time and the asymmetry physical geography parameters in space, which can influence the process of the runoff, this paper puts forward a sort of slope conflux and watercourse conflux simulating model based on grid, and that gains flux at random time and grid in basin
本模型針對降雨時空分佈不均勻與下墊面自然地理參數空間分佈不均勻,對產匯流形成過程的影響,提出了一種基於柵格的坡面產匯流與河道匯流的數值模擬模型。Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator. fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio - parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping
本文的主要內容如下: 1 )對翅片管蒸發器結構特點進行分析,選取適當的微元控制體,就干、濕和霜工況下對每個微元分別進行傳熱傳質分析,基於經驗關系式確定霜的有關參數,對于霜工況下的霜生長建立模型,經適當假設,運用質量守恆、能量守恆和動量守恆方程建立適合動態模擬的蒸發器數學模型,為系統模擬奠定基礎; 2 )對蒸發在大擾動下的開、停機過程,運用動態集中參數模型進行分析和計算,為更好地描述製冷系統運行的全過程奠定基礎,同時也為製冷系統實現自動控制提供一定的理論基礎; 3 )對蒸發器正常運行過程,運用動態分佈參數和參數間定量耦合的觀點來分析和計算,為更好地了解穩態工況下各點參數的變化情況及各入口參數對蒸發器動態特性的影響即蒸發器性能對各參數變化的敏感性; 4 )編寫翅片管蒸發器動態特性模擬計算程序,可以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕度和霜厚度分佈場,實現對翅片管蒸發器在干、濕和霜工況下的動態模擬。A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method
提出一種基於遺傳演算法的直流雙閉環調速系統參數優化設計方法.根據工程技術的要求,選用速度超調量和過渡時間作為參數優化性能指標.將該指標用模糊隸屬度函數歸一化,再加權平均形成系統優化模型的目標函數.採用計算機數值計算方法,通過模擬獲得系統對應參數的動態響應曲線及其性能指標.最後以工程設計的參數為搜索范圍,以速度調節器和電流調節器的參數為染色體中的基因,通過遺傳演算法在搜索范圍中優化這些基因,獲得優化解.實驗結果表明,所設計的參數能使系統性能指標有顯著提高No. 2, a fast simulation technique is proposed to approximate the filtering effects of the implicit method in order to alleviate the heavy computation brought by the implicit integration method. no. 3, an algorithm to dynamically regulate the time step is detailed
柔體模擬過程中一直存在的瓶頸問題首先是為保證模擬過程的穩定性而不得不採用較小的時間步長,其次是求解微分方程時耗費的計算量過大。Secondly, he establishes a rule table of vehicles " behaviors based on analyzing them. the table can simplify the model of vehicle ' s following and lane changing so that it will shorten the time of simulation. and thirdly, by using the cache technology of level - two time cell, the author solves the conflict, which arises from the limited memory and the masses of cache that is needed to get the better precision in simulation
本文在系統設計中,用匝道控制和主線控制相結合的方法,進行高速公路全線交通的綜合控制,優化控制效果;根據車輛行為分析,建立了車輛行為規則表,將車輛跟馳模型和換道模型簡化為車輛行為表,減少了模擬時間;採用二級時間片的緩沖技術,解決了模擬過程為達到較高模擬精度所需的大量緩存與有限內存空間的矛盾。( 2 ) a series of experiments on time scale distortion are made with real river model, inflow and outflow boundary condition, and continuous simulation. by means of analysis of the experimental data on model water level, water - surface gradient, cross velocity, outflow discharge process and the sediment transportation capacity, the main physical reasons for the above hydraulic parameters deviations caused by time scale distortion are illustrated : response delay of model channel storage capacity and rate of water level with time
( 2 )採用真實的河工模型和入出流邊界控制條件以及連續模擬的方法進行了有關時間變態率的系列試驗,通過模型水位、比降、流速、出口流量過程線和斷面挾沙力試驗資料的分析,闡明了時間變態引起上述各種水力參數偏離的主要物理原因:模型的槽蓄響應和洪水過程時間變化率的響應滯后。According to federation development and execution process ( fedep ), the concept model of the distributed interactive system is developed, fom / som and fed file are created, real - time and living display is r ealized bye orrectly combining vr - link w ith t he v ision federate, synchronization simulation is carried out by independently advancing simulation time, t he s ystem 1 atency is analyzed b y t esting t he t ime characteristic of t he system
3 . 3和vr一link3 . 6 . 1為開發環境,依照聯邦開發執行過程fedep開發出魚雷武器分佈交互模擬系統的概念模型;建立了fom / som模型並生成fed文件;解決了與三維視景聯邦成員的介面技術問題,從而實現了實體狀態的實時的、逼真的顯示;採用獨立時間推進實現了聯邦的同步模擬;對系統產生的時延特性進行了測試,分析了魚雷武器分佈交互模擬中的時延誤差問題。The spd model is made by the ins titute of geographical sciences and natural resources research of chinese academy of sciences. it combines social economic factors, such as city and transportation foundational facilities, with nature factors, for example the digital elevation model ( dem ) and net primary productivity ( npp ) of plants to simulate the spatial distribution of population density of china by the advanced grid generation technology
中國模擬人口密度模型是由中國科學院地理科學與資源研究所首先提出的,這個模型試圖利用先進的格網生成技術,將城市、交通基礎設施等社會經濟因子和陸地數字高程( dem ) 、陸地植被凈第一性生產力( npp )等自然因子相結合,通過模型的反演,模擬某一時期的中國人口密度空間分佈狀況。In this paper a numerical method for equations of transport and biodegradation in the fractured media is discussed. because the equations consist of terms related to advection, diffusion, biochemical as well as the term of exchange betwen the fracture and the porous media, it is very difficult to find their solution. in order to find more efficient method for solving these equations, several numerical methods for the equations without biochemical terms are discussed first. the numerical results show that the cubic spline method can be used to solve advection flow dominated problem which often occurred in the fractured media. then, the equation with both advection - diffusion term and biochemical term are discussed. the splitting - operator is used to decouple the advection and diffusion terms with biochemical term in the equations. the way to determine the smaller time step for solving fast biochemical terms is introduced through comparing the order of characteristic time of biochemical term with that advection ( diffusion ) term. numerical simulation results show that good agreement between analytical solution and experiment result is attained
本文討論了含裂隙介質地下水污染物輸運與生物降解非線性方程組數值求解方法.方程含有對流項、擴散項、生長、死亡、吸附、解吸、趨化和孔隙與裂隙介質界面間的交換項的非線性偶合,使演算法十分困難.本文討論了無生化過程時的幾種求解方法,數值結果表明:用三次迎風插值法對常見的對流項占優勢,且場變量有較大梯度的問題較適用.在討論有生化反應過程時,利用對流項與生化反應項的特徵時間量級估算,給出了求生化過程作用子步的時間步長估算辦法.用上述方法所得到的模擬結果與解析解、無化學反應和有化學反應的實測值對比,吻合很好The work involves : 1 based on the analysis of previous ddm schemes, considering source - based, destination - based, intermediate filtering mechanism, this paper gives clearly reason and excellence of selecting light - weight mode architecture ; 2 the paper displays light - weight ddm scheme in details, including the relationship of ddm service with other services and object attributes, relevant element designment and algorithm designment ; the paper analyses information flow in light - weight ddm scheme, dividing all implementing classes of ieee 1516 interface specification, showing ddm federate process and explaining how to use " infantry division landing island joint warfare simulation system " to test all ddm implementation algorithms
這主要包括: 1 、在綜合分析ddm所有實現方式的基礎上,包括基於agent 、網格和區域等實現方法,結合源端、中介端、目的端過濾機制,首次提出了ddm弱服務器模式體系結構; 2 、論文首次給出ddm弱服務器模式方案的具體設計,包括ddm與聲明服務、對象服務、所有權服務、時間服務及與對象屬性的關系,相關基礎設計和詳細演算法設計等。 3 、最後,論文給出了弱服務器實現模式的信息流向,分析了ieee1516介面規范實現時用到的所有實現類,以及符合ieee1516規范的ddm成員流程,論述了利用「 xxx作戰」模擬工程綜合測試數據分發管理的過程。Then the model is simplified, the theory of martingale, simulation, and diffusion approximations are discussed firstly. these methods are applied in the model. then get some useful results, so we can estimate the upper bound for the ruin probability and the approximation of the finite time ruin probability
並詳細的討論了模型有限時間內破產概率和最終破產概率的估計,應用隨機過程序列弱收斂,鞅以及隨機模擬等理論,得出一些有意義的結果? ?在有限時間內破產概率的逼近表達式;最終破產概率的上界和有限時間內破產概率上界;有限時間內破產概率的隨機模擬演算法;並得到最終破產概率滿足的泛函方程。A numerical approach is often employed for understanding optical transmission process in fibers, for the reason that the equation modeling optical propagation in fibers is a nonlinear partial differential equation ( sometimes is called nonlinear schrodinger equation ), which cannot generally be given analytical solutions
就單一的光脈沖而言,其時間范圍可以為無限,而在計算過程中我們只能就其中起主要作用的一段時間范圍進行模擬,這一時間范圍定義為時間窗口t _ w 。The thesis ' s work is significant to simulation work of weapon system. it can improve the fidelity of simulation, which make users more convenient to analyze the whole simulation process. so users need not spend much time on analyzing data and can focus more on building the mathematical models of systems for simulating
本文的研究在導彈武器系統的模擬工作中有著重要的實用意義,可以提高模擬的直觀性,便於用戶對整個模擬過程進行分析,使用戶不必在分析數據上浪費大量的時間,而把精力集中到模擬對象系統的搭建和數學模型的準確性設計上。This thesis develops a process - based spatiotemporal data modeling method by discussing and analyzing backbone theory and characteristic of spatial process simulation and methods of integrating gis and process - based stdm
對空間過程模擬的理論基礎、空間過程模擬模型的特點、現有gis數據模型的局限性、基於過程時空數據模型與gis結合的方法進行了分析和討論。The peculiar mechanical character about pumping liquid concrete is discussed. based on the supposition that the ability of transferring hydraulic pressure of liquid concrete is orthotropic and the friction forces exists between concrete and steel tube, the pressure formulas of liquid concrete and the allotting formulas of deadweight are reasoned out. a new method is brought forward for allotting deadweight of liquid concrete during simulation analysis in pumping - core - concrete construction phase, which improves the calculation precision
在探討泵送液態混凝土的特殊的力學性質基礎上,在假定液態混凝土傳遞壓強能力為正交各向異性、混凝土與鋼管壁之間的存在有摩擦力的前提下,推導出液態混凝土壓強公式和自重荷載的分配公式,提出了在進行鋼管內混凝土灌注過程的施工模擬分析時處理液態混凝土自重荷載分配的合理方法,從而提高施工模擬分析的計算精度。After researched fuzzy self - tuning pid parameters controller, a simulation experiment is shown in this paper, which demonstrated this controller is feasible. at last, a practical experiment is made with the efpt process - control equipment, the result of the experiment manifests : fuzzy self - tuning pid parameters controller integrate the advantage of pid controller and the fuzzy controller, it has the following character : small overshoot ; short transient time ; excellent control accuracy and no stabilizing error
本文在設計的pid參數模糊自整定控制器的基礎上進行了模擬實驗,論證了這種控制器的可行性,最後在efpt過程實驗裝置上進行了模擬實驗,實驗結果表明pid參數模糊自整定控制器集合了pid控制器和智能權模糊控制器所具有的優點,能很好地控制鍋爐液位的穩定,具有超調量小,過渡時間短,控制精度高,無穩態偏差的特點。The algorithm is composed of two sections. in the first section the nodes in a circuit are arranged in linear time order to preserve simulation validity. in the second section, the nodes in order are divided into several sets whose root is primary input node and nodes in which can be reached by path ; then these sets are united by connectivity among sets into some larger sets, the number of which is equal to that of processors ; at last the sets are assigned to each processor by connectivity among sets
該演算法主要分為兩個部分,第一部分是將電路中的節點按線性時間順序排序,這樣就保證了模擬過程的正確性;第二部分是將有序節點劃分到以不同原始輸入為根節點的子節點集中,並將這些子節點集按其連接量的大小合併為與處理器數目相等的子節點集合,最後將這些子節點集合按連接量分配到各個處理器上。Simulation process time
模擬過程時間分享友人