gravity model 中文意思是什麼

gravity model 解釋
引力模式；重力模式
  • gravity : n. 1. 認真，嚴肅，莊重。2. 重要性，嚴重性；危險性。3. 重量。4. 【物理學】重力，引力，地心吸力。5. 【音樂】（音調的）低沉。
  • model : n 1 模型，雛型；原型；設計圖；模範；（畫家、雕刻家的）模特兒；樣板。2 典型，模範。3 （女服裝店僱...
  1. In section one, by using fice scheme and time - gcm, a model of trace gases and oh airglow affected by gravity wave is set up, then the propagation of nonlinear gravity wave and the effect on trace gases and oh airglow are analyzed. the result shows gravity wave excited by tropospause forcing can propagate stably to the mesosphere through the stratosphere so that energy and momentum can be transferred from one region to another. in this process, gravity wave undergoes growth, overturning, convection and breaking

    在第一部分的工作中，利用全隱歐拉格式和全球熱層-電離層-中間層-電動力學環流耦合模式（ time - gcm ） ，對重力波的非線性傳播及其在傳播過程中對中高層大氣中氧族和氫族成分和與之密切相關的oh氣輝輻射的影響進行了數值模擬，結果表明，從對流層向上傳播的重力波經歷了產生、發展、飽和、對流產生直至破碎的非線性演化，大氣的非等溫結構加速了重力波在中層頂區的破碎，重力波的非線性傳播是小尺度對流和湍流產生的一個重要的源。
  2. ( 2 ) the gravitational toy model in canonical ensemble is also studied under the regime of generalized statistical mechanics. we find that a region of negative specific heat describing the character of gravity also exists in canonical ensemble, which is remarkably distinguished from the result of traditional statistical mechanics that the specific heat must be positive in that ensemble, implying that the gravitating system may also be described by canonical one

    （ 2 ）在正則系綜中，我們同樣根據廣義統計力學對引力toy模型進行了研究，發現也會出現類似於微正則系綜中的負比熱現象，這明顯區別于傳統的統計力學中比熱必須非負的結論，從而得出在tsalllis統計下正則系綜也可以描述引力系統的結論。
  3. It provides strong basement for the research of design. the method of structure analysis commended by this paper is based on nonlinear finite - element, diathermanous and elasticity mechanics. it found the model of a steel beam pressed by gravity and temperature in the condition of indoor fire

    本文提出的結構分析法是在大量參數分析的基礎上，以非線性有限元、傳熱學及彈性力學為基礎，利用ansys軟體，建立一個鋼框架梁在室內局部火災條件下的傳熱模型與在重力荷載及溫度荷載共同作用下的受力模型。
  4. The gravity model explicitly relates flows between zones to interzonal impedance to travel

    重力模型明確的通過地區間的阻抗來將分佈量和小區聯系起來。
  5. Fdi flowrate and potentiality in china : a gravity model approach

    基於引力模型的研究
  6. The characteristics of the normal equation created in recovering the earth gravity model ( egm ) by least - squares ( ls ) adjustment from the in - situ disturbing potential has been discussed in detail

    摘要討論了在基於能量法確定地球重力場模型的過程中，利用最小二乘方法由沿軌擾動位數據解算位系數時法方程的特性，在該問題中，法方程只與衛星軌道有關。
  7. By using the improved gravity model and gray theory model, the essay makes forecast analysis on future passenger traffic volume of shjiazhuang - taiyuan passenger - dedicated line from three aspects, including passenger flow of local line, passenger flow originating from other railways and induced passenger flow, and using gdp and population density of surround cities along the passenger corridor, the passenger traffic volume on existing line of shijiazhuang - taiyuan passenger corridor and the weighted operation time between cities as impact factors respectively

    摘要利用改進的重力模型和灰色理論模型，從石太客運專線的本線客流、跨線客流和誘增客流3個方面，分別以客運通道周邊城市的gdp和人口分布密度、石太客運通道既有線的旅客運輸量、城市間的加權運行時間為影響因子，對石太客運專線的旅客運輸量進行預測分析。
  8. Calibrating the gravity model consists of evaluating the parameters of the impedance function ( or the values in the friction factor table ) so that the gravity model reproduces, as closely as possible, the base year productions and / or attractions and the base year trip length distribution

    校準重力模型就是計算阻抗函數參數（或者摩阻系數表中的值） ，使其盡可能吻合基年產生和吸引，以及基年的出行距離分佈。
  9. Gravity model : the typical inputs include one or more flow matrices, an impedance matrix reflecting the distance, time, or cost of travel between zones, and estimates of future levels of productions and attractions

    重力模型：輸入的基本數據包括一個或多個流量矩陣，反映距離的阻抗矩陣，小區間的出行時間和成本，未來發生和集中預測。
  10. Calibration typically entails an iterative process that computes coefficients such that the gravity model replicates the trip length frequency distribution and matches base year productions and / or attractions

    典型的校準在系數計算中通常有一個迭代過程，好像重力模型復制了出行距離頻數分佈，同時匹配基年發生和吸引。
  11. Prior to applying a gravity model, one has to calibrate the impedance function

    應用重力模型的之前，你應該先校準阻抗函數。
  12. Gravity model in china and asean trade real dtagnosis andlysis

    引力模型在中國與東盟貿易中的實證分析
  13. An analysis on the gravity model of vietnam ' s export and its inspirations

    越南出口的引力模型分析及啟示
  14. Empirical test of china ' s bilateral trade with the trade gravity model and its policy implications

    貿易引力模型對中國雙邊貿易的實證檢驗和政策含義
  15. The gravity model has testified the judgment that participating in rta will promote one country ' s trade potentials

    摘要引力模型為有效促進參與區域貿易安排成員國的出口增長提供了有力證據。
  16. The gravity model was originally motivated by the observation that flows decrease as a function of the distance separating zones, just as the gravitational pull between two objects decreases as a function of the distance between the objects

    重力模型起初的目的是描述是交通量隨著小區之間的距離而減小，正如萬有引力隨著量物體之間的距離而減小。
  17. 2. the model principle of four steps in passenger flow forecasting is illustrated and the software flowchart combining the transcad technology with the transit planning model is listed, gravity model is calibrated, and forecasted passenger flow of planning road network in the target year is obtained

    2 .結合transcad技術和交通規劃模型，對公交客流預測四步驟進行模型原理說明並給出軟體流程，對重力模型進行標定，得出規劃道路網目標年公交客流預測值。
  18. Modern derivations of the gravity model illustrate that it can be motivated as the most likely spatial arrangement of trips, given limited information available on zonal origin totals, zonal destination totals, and various supporting assumptions or constraints about mean trip lengths ( wilson, 1970 )

    最新推導表明，在大多數出行的空間分佈中，已知有限的起、終點小區信息，有不同的支持假設或者平均出行長度約束，那麼這個模型是有根據的。
  19. It mainly introduced elementary theory of the trade gravity model, the challenge of trade gravity model development facing and trade gravity model ’ s application. and it proposes research steps of this article in the above research foundation : we selects correlation data of our country with 151 main trade partners composing panel data in 1992 - 2003, carries on the test to the gravity model of china ’ s foreign trade, and analyses the choice of export location, in the hope of getting more accurate conclusion, and offering scientific basis for the formulation of our country ’ s foreign trade policies ; the second part, the establishment and test of gravity model about china ' s foreign trade. the text sets up the gravity model which studies china ' s foreign trade in seven regions and examines the actual conditions of china ' s foreign trade flow with panel data

    本文共分四大部分，第一部分，貿易引力模型及其應用，主要介紹了貿易引力模型的基本理論、貿易引力模型發展面臨的挑戰和貿易引力模型的應用，並在上述研究的基礎上提出了本文的研究思路:選取1992 - 2003年我國同151個主要貿易夥伴的相關數據組成面板數據，對我國對外貿易引力模型進行檢驗，並對出口區位進行選擇，以期得到更為精確的結論，為我國制定對外貿易政策提供科學依據;第二部分，我國對外貿易引力模型的建立和檢驗，在這一部分按中國的貿易夥伴國分七大區域建立了研究中國對外貿易的引力模型，並運用面板數據對中國對外貿易流量的實際情況進行檢驗。
  20. In chapter three, the author makes some study on the spatial distribution of domestic tourist markets in sanya city. secondly, based on gravity model, he established a spatial potentiality model of tourist flows, which is useful to direct tourist market positioning and marketing

    第三章研究了三亞市國內客源市場空間分佈特徵，在重力模型的基礎上建立了旅遊客流空間潛力模型，分析了三亞市旅遊者空間行為特徵。
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