impact model 中文意思是什麼
impact model
解釋
撞擊模型-
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。 -
In this paper, based on land use maps of 1976, 1988, 2003, which were interpreted from the landsat mss / tm / etm imageries, and the map of main road, with the buffer analysis tool in arcgis 8, we studied the land use and land cover change on the two sides of the main roads in xishuangbanna, then we studied the impact of population density and the topographic factor on road effects. during the study both the comprehensive land use dynamic degree model and the land use degree comprehensive index model are taken into account, we put forward a compensatory model ? “ amendatory comprehensive land use dynamic degree model ”
由於人類活動干擾強度加大，公路效應深度不斷擴展， 1976年為5km ， 1988年為7km ， 2003年達到11km ;受自然、社會條件的影響，不同路段的公路效應存在較大差異，甚至同一路段兩側效應也各不相同。 1976年至2003年，距公路不同距離范圍內的人口密度都在增加，且距離公路越近，人口數量密度越大、增長越快，人口分布有向公路兩側聚集的趨勢。選取人口密度為大、中、小三個樣區分別分析公路效應的范圍表明，人口密度 -
Taking certain typed ejection seat as the target of study, this paper established a finite element model to carrying out impact dynamics simulation
摘要以某型彈射座椅為研究對象，建立有限元模型進行座椅結構的沖擊動力學模擬。 -
Establishing an human spine dynamic model is an significan event to study spine injured biomechanics of pilot " s ejective injury, parachute opening, landing and study the endurance to impact loading on human spine. in this paper, the huston " s method of kane " s equations is developed so that it can be applied to the multibodysystem including translation between the bodyies. the dynamic model of human spine is provided basing on these theories, while the big movement of spine is considered. the deformation of vetebra is far smaller comparing with the intervetebra disc, so the spine is considered into multibodysystem including rigid bodies ( vetebra ) and the flexible bodies ( intervetebra disc ). the computer solution correspond with the results of the large scale human impact test. the rigid coefficient factors and the damping factor of intervetebra joints are obtained
人體脊柱動力學模型的建立對研究飛行員彈射救生、傘兵跳傘開傘、著陸等脊柱損傷的生物力學以及研究人體脊柱耐受沖擊載荷的極限問題都具有重要意義.首先發展了凱恩方程的休斯頓方法，使其可應用於變形體連接的多體系統，並以此理論為依據建立人體整椎脊柱沖擊動力學模型，此時考慮脊柱的大位移運動，每個椎骨的變形相對椎間盤的變形小得多，把脊柱看成由剛體（椎骨）和變形體（椎間盤）組成的多體系統.並以大型真人坐姿沖擊實驗結果進行了擬合，最後得到腰椎間關節剛度系數因子和阻尼系數因子 -
One is recommended by the chinese transportation ministry and is specified in " assessment criteria for environmental impact from road construction projects, jtj005 - 96 " ( to be referred as prediction model from transportation ministry ). the other is recommended by the national environmental protection bureau and is published in " the general guidelines for environmental assessment technologies ? ound environment, hj / t2. 4 ? 995 ". this model is the high way noise prediction model from the united states federal high way authority ( fhwa )
本論文針對當前我國道路交通噪聲預測中應用得極為廣泛的兩種模式：我國交通部在《公路建設項目環境影響評價規范（試行） （ jtj005 ? 96 ） 》推薦的模型（以下簡稱為交通部預測模型）和國家環境保護總局發布的《環境評價技術導則?聲環境[ hj t2 . 4 ? 1995 ] 》推薦的美國聯邦公路管理局（ fhwa ）公路噪聲預測模型（以下簡稱為fhwa預測模型） ，在進行預測時的比較研究。 -
By hydraulic modeling, this paper describes studies on the stability of a floating bulkhead operating in standing water and flowing water, and it ' s hydrodynamic stability characteristics that distinguish in standing water from in flowing water ; and direct measurements of the forces acting on the model floating body during floating and sinking is taken. as a result, the rotation stress curves are produced and analyzed ; to provide data for optimum operation schedule analyses of the sluice, the relationship of the impact forces acting on the side wall of the gate and the running speed is studied ; the reasons of unstably uplifting of the bulkhead are discussed and the method to solve the problem is also given in this paper
本文結合常州新閘防洪控制工程水工模型試驗，系統分析了浮箱門在靜水和動水中的穩定性及其影響因素，指出靜水穩性和動水穩性的不同特點；試驗測定了浮箱門動水運行時的受力情況，給出並分析了定位過程轉動力的變化過程曲線；根據浮箱門啟閉速度與門體和岸墻之間撞擊力大小的關系，選擇合理的動力設備，為設計和工程實踐提供可靠依據；分析浮箱門難以穩定上浮的原因，並給出解決方案。 -
Roll over protective structure ( rops ) is a device which installs on out of construction vehicle. the main functions are : when the vehicle rolling over. rops can prevent the vehicle from rolling over further, and reduce the possibility of rolling vehicle injures operator ; when the vehicle traveling on freezing soil. concrete and rock, it has large resist continuous impact ability ; when the vehicle overturning rops can support the whole vehicle. arrangement of falling object protective structure ( fops ) can block objects ( such as trees, rocks ) so that supply protection for operator. this problem is that research rolling over and falling objects protective structure of bulldozer by learning research condition of rops / fops and relative lay down international standard. on the base of theory analysis. detrudes counting formula of rops / fops deformation through founding mechanics analysis model of rops / fops at the stage of elasticity and plastoelastic. and finds a set of feasible nonlinear finite element analysis counting. lt calculates rops / fops plastoelastic deforma variable of 320hp bulldozer, bulldozer has been carried out by optimizing design method
其主要功能是：當車輛滾翻時， rops能刺入未凍土壤而阻止車輛的進一步滾翻，降低滾翻的車輛對系著安全帶司機軋傷的可能性；保證rops在碰撞和沖擊變形不大的地面（如凍土、混疑土上、巖石）時，能具有相當大的抗連續沖擊能力；當車輛已經處于顛覆狀態時，已經變形的rops應能支撐住整車。落物保護裝置（簡稱fops ） ，其構件的布置方式要能遮蔽墜落的物體（如，樹木、巖石等） ，以便對司機提供適當的保護。本課題主要通過了解國內外有關對rops fops的研究情況和有關國際標準的制定，對大型推土機傾翻和落物保護裝置進行研究，在理論分析的基礎上，通過建立rops fops的力學分析模型，推導彈性、彈塑性階段rops fops變形的計算公式，建立一套可行的rops fops的非線性有限元分析計算方法。 -
According to the correlative theory of hydromechanics and shock wave, theoretical model of creating quasi - isentropic compression via w - mo - ti - mg system flier - plate with graded wave impedance was established, and study on the numerical simulation of the impact process was then carried out
根據流體力學和沖擊波理論知識，首先建立了梯度飛片擊靶的理論模型，對w - mo - ti - mg系梯度飛片擊靶過程進行了數值模擬計算。 -
Collisonal quantum interference ( cqi ) was observed in the intramolecular rotational energy transfer in the experiment of the static cell, and the integral interference angles were measured. to observe more precise information, the experiment in the molecular beam should be taken, from which the differential interference angle can be obtained precisely. in this paper, the theoretical model of cqi is described in an atom - diatom system in the condition of the molecular beam, based on the first - born approximation of time dependent perturbation theory, taking into accounts the anisotropic lennard - jones interaction potentials. the method of observing and measuring correctly the differential interference angle is presented. the changing tendencies of the differential interference angle with the impact parameter, velocity, and et al. are discussed
分子內部轉動傳能的靜態池實驗觀察到了碰撞量子干涉效應（ cqi ） ，並且測得積分干涉角，為了獲得更加精確的分子內部轉動傳能的碰撞量子干涉效應信息，實驗就必須要採用分子束實驗進行.本文理論上採用各項異性相互作用勢，應用含時微擾理論的一級波恩近似，假想在分子束實驗的條件下，建立在原子-雙原子分子體系中碰撞量子干涉的理論模型.理論上推導出微分干涉角具體表達式，通過計算定性地討論了微分干涉角隨著碰撞參數、速率等的變化趨勢，同時初步探討了實驗的正確觀測途徑，得出了採用分子束進行實驗觀測的實驗方法，為進一步進行分子束實驗提供了理論基礎，對實驗的進行起到了一定的借鑒作用 -
Fourthly, under the structure of general equilibrium, it analyzes the speculative bubbles " impact on the economy with overlapping generation model which considers the technology advances and random real capital gain ratio. it not only introduces the achievements of foreign economists ( tirole, 1985, weil, 1987 ; blanchard and fisher, 1989 ) ; but also does the creative research on the movable economic efficiency during the transitional period
第四，在一般均衡框架下，採用具有技術進步和隨機實質資本投資收益內容提要率的跨時迭代模型研究投機泡沫對經濟的影響，推廣了國外經濟學家（五role ， 2955 ; weil ， 1957 : blanch出妞助dfisher ， 1989 ）的研究成果。 -
To the influence of the plateau terrain, the impact of the elevation and the roughness of terrain to every energy component out and incoming are study, and basing the soil spectrum model proposed above, a new radiative transfer model of terrain area was put forwarded in which the soil water content, lai, terrain roughness and elevation were considered synchronously, and incoming scatter light was integral with the solid angle of semi - globe space defined by the slope of the pixel, so scattering lights of terrain and the sky are properly considered, but the operation is still within the acceptable range
地形與反射率的關系是本文研究的一個重點。本文對崎嶇山地象元的各入射光和反（散）射光分量進行了深入分析，在所提出的濕潤土壤光譜模型和植被冠層模型的基礎之上進一步提出了新的適合青藏高原的山地輻射傳輸模型。該模型同時考慮了土壤含水量、植被覆蓋（ lai ） 、地形起伏和海拔高度的影響，並以象元坡面定義的半球空間立體角對環境入射光進行積分，使周圍地形和天空散射光均得到適當考慮，計算量又在可接受范圍內。 -
Aiming at the impact of finite storable capacity for intermediate products, a mixed - integer linear programming ( milp ) model of scheduling of multi - stage batch processes with finite intermediate storage is presented, which is based on the state - task - network ( stn ) concept and the hierarchical modeling approach
摘要本文結合生產實際情況，考慮了有限的中間品儲存能力所帶來的影響，對具有中間品儲存約束的多工序批量加工排序問題進行研究。 -
4. simulation model for capture and buffer phase is built based on adams software, in the model, capture ring is accurately built with full consideration of actual geometrical feature, buffer system is modeled the same as that of ddss, and adams impact model
4 .建立了捕獲段與緩沖段的adams模擬模型，其中對接機構採用精確的實體三維模型，緩沖力模型同上，接觸力採用adams軟體提供的的impact模型。 -
Numerical simulation on the gas - solid multiphase flow in new type pulverized coal impact rich / lean burner is presented in it. under the guidance of the theory of computer aid test ( cat ), the dissertation uses particle - particle random impact model and the fluctuating - spectrum - random - trajectory ( fsrt ) model to simulate the gas phase flow and the particle phase flow based on the lagrange approach, compared with experimental results, and reaches satisfied efforts
在cat計算機輔助試驗理論的指導下，結合實驗研究，本文採用包括脈動頻譜隨機軌道（ fsrt ）模型、顆粒和顆粒的隨機碰撞模型等先進的氣固多相流模型，在高濃度氣固多相流動數值模擬這一前沿研究方面得到了很有價值的結果。 -
Tang, s. m., 1999, critical factors impact model of intranet adoption : an exploratory and empirical study, ( the journal of systems and software, jss ), accept, on 19 may, 1999, u. s. a. ( sci 期刊 )
唐順明，李宗軒， 1999 ，建立企業網路關鍵因素的相關模式之研究，社會科學學報，第7期，民88年5月 -
Elasto - plastic impact model and experimental study of new absorber for structural collision protection
結構簡化彈塑性撞擊分析模型及新型防撞吸能器初步試驗研究 -
Based on the error analysis theory of linear equations, the equation for estimating the upper bound of error for two - dimensional vehicle impact model is derived
摘要根據線性方程組誤差分析理論，推導出汽車二維碰撞模型解的相對誤差上界估算方程。 -
In this paper, a car - pedestrian impact model was established by using the available multi - body pedestrian model and the software of madymo. by changing the main structure parameters of the car - front, the influence of car - front structures to the knee injury was analyzed, and the car - front structures that cause minor injury to the legs were proposed
本文採用現有的行人多體動力學模型，利用madymo軟體，建立了汽車與行人碰撞模型，通過改變汽車前部的主要結構參數，分析了汽車前部結構對行人膝關節損傷的影響，確定了在汽車與行人碰撞過程中對人體下肢損傷較小的汽車前部結構。 -
Firstly, this paper introduces some basic theories on computer simulation of airbag - unfolding, and presents two key technologies : finite element model and contact impact model of the airbag system. through analysis of protection of airbag for occupants, this paper takes three parameters into consideration in the simulation. on the basis of that, this paper presents an experimental method to validate the computer simulation
通過分析氣囊對人體的保護作用，提出了評價氣囊工作性能的三個參數：碰撞加速度、速度和氣囊氣體壓力，並以此作為試驗裝置設計的依據，為後面的試驗研究提供了理論基礎，確立了試驗裝置設計方案以及設計的主要技術參數。 -
According to previous research on tia all over the world, there exist several methods for tia, such as some tia procedures which is founded by some america authoritative institution, tia methods in the uk, and the quantitative traffic impact model which is put forwarded by dr huang zhaoyi inland
論文首先在總結tia研究文獻的基礎上，分析了國內外現有主要的tia研究過程，如美國一些權威交通機構提出的tia研究步驟、英國tia分析方法以及國內黃肇義博士所提出的項目交通影響量化模型。
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