虛擬變量模型 的英文怎麼說

中文拼音 [xūnǐbiànliángmóxíng]
虛擬變量模型 英文
dummy variable model
  • 虛 : Ⅰ名詞1 （空虛） void; emptiness 2 （政治思想等方面的道理） guiding principles; theory 3 （二十八...
  • 擬 : 動詞1. （設計; 起草） draw up; draft 2. （打算; 想要） intend; plan 3. （模仿） imitate
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 虛擬 : 1. （虛構的） invented; fictitious 2. （假設的） suppositional; 虛擬語氣 [語言學] subjunctive mood
  • 模型 : 1 （仿製實物） model; pattern 2 （制砂型的工具） mould; pattern3 （模子） model set; mould patter...
  1. Brings forward the basic network cell model of symmetrical blast vault and asymmetric blast vault. then studies and analyses airflow in vault of main voltage switchyard hall of xiluodu hydropower station which is far cry and large numbers of airflow conflux, brings forward concept of “ virtual embranchment ” and corresponding basic network cell model, regresses calculate expressions of flux uniformity coefficient and impedance of “ virtual embranchment ” of vault of main voltage switchyard hall of xiluodu hydropower station

    而後又採用cfd數值模擬的方法對溪洛渡水電站主變洞排風拱頂這種多股氣流匯流的長距離通道內的氣流流動進行了分析，提出了「虛擬分支」的概念和相應的網路基元模型，並回歸得到了溪洛渡水電站主變洞排風拱頂各個排風「虛擬分支」風量均勻系數以及阻抗的計算公式。
  2. Based on funds holding stocks sample and whole stocks sample, it uses cck adjusted model to test the existence of herd behavior of funds and that of the whole stock market. then, it inserts dummy variable dt in cck adjusted model to testify whether herd behavior of funds and that of the whole stock market are the same in scale to prove whether herd behavior of funds makes stock prices fluctuate in the whole stock market

    本文主要採用實證研究的方法，首先運用cck校正模型，按基金持股樣本和股市整體樣本，分別檢驗基金羊群行為及股市整體羊群行為是否存在；其次，在cck校正模型的基礎上引入虛擬變量d _ t ，建立虛擬變量模型，以檢驗基金與股市整體羊群行為的顯著程度是否相同，從而證明基金羊群行為能否引起股市整體價格的波動。
  3. Furthermore, the dissertation deals with institutions as dummy variables and establishes a measure model to go on the research, making a conclusion that the institutions is not only an important factor in urbanization, but also the one, which has the biggest flexibility in the system innovation of urbanization. in the eighth and ninth chapters, factors hampering the regime innovation in urbanization are discussed. then the direction and principles of the system innovation of urbanization are approached

    在以上分析的基礎上，論文把城鎮化中的制度因素作為虛擬變量，華中農業大學博士學位論文:我國城鎮化中的制度變遷研究來進行計量模型的建立和檢驗，最後得出結論:制度因素不僅是影響城鎮化進程的重要作用因素，而且在城鎮化進程中制度創新的彈性是最大的。
  4. In this dissertation, the development survey, research actualities and application prospect of vamt are introduced at first, and the models of kinematics, dynamics and linear motor servo are analyzed then. currently the dynamics model is complex or established mechanically, which restricts the study of control theories. thus this dissertation present a simple and easy - realized control idea, namely, the fore and torque of every leg determined by the inverse - solution of mechanics are regarded as changeable load force ( disturbance ) applied in motor, the elongation of the leg or displacement of sliding is regarded as the output of linear servo system

    本文首先介紹了虛擬軸機床的發展概況、研究現狀和應用前景，然後對其運動學、動力學、直線伺服系統模型進行分析，針對目前動力學模型過于復雜或完全從機構學角度建立不便於控制的問題，提出了簡單、易於實現的控制思想，即將虛擬軸機床的動力學方程反解所確定的各桿受力（矩）視為電機的可變負載力，以桿長伸縮量或滑塊位移為伺服系統輸出，從此構成位置閉壞，實現軌跡跟蹤控制。
  5. The constitutions and principles of position of gps > glonass and beidou navigation system are described all around in this article, and the following technologies are studied and realized : communication between com ports with oop technology, compound navigation with gps and glonass. calculate velocity, pseudorange difference, smoothing pseudorange with the carrier - phase and models to correct error are also done ; the transforms between wgs - 84 and pz - 90, as well as wgs - 84 and beijing54 coordinate system ; the technologies to display and manage bitmap, vector map based on mapx also ; conversion of data formats between gjb and mif data format of maplnfo corp. arithmetic of creation dem data based on contour line data from 1 -. 25000 map data with gjb format. texture the surface of terrains with corrected aviation image

    本文全面介紹了gps 、 glonass 、北斗導航系統的組成、定位原理，研究並實現了面向對象的串口通信技術、 gps + glonass組合導航、測速及偽距差分、相位平滑偽距差分以及有關誤差的模型改正、 wgs ? 84和pz ? 90 、 wgs ? 84和北京54坐標系的坐標轉換、柵格地圖的顯示和管理、基於mapx的矢量地圖的顯示和管理、 1 : 25萬軍標數據和mapinfo的mif數據格式雙向轉換、基於軍標數據的dem生成演算法、基於opengl的三維地形構造、航空圖像紋理地形表面、三維坐標量算、虛擬現實模擬導航、三維地形的層次細化演算法以及數字圖像處理中的圖像增強、幾何變換、影像匹配等技術。
  6. First, suppose a source point and a sink point. second, draw a unilateral line from source point to every substation node. the line ' s capacity is set as corresponding substation ' s allowable load value and the line cost is set as the substation ' s unit load cost

    本文通過線性化處理后將網架優化模型描述為一個最小費用最大流問題，虛擬一個源點和一個匯點，從源點到各變電站節點各引一條單向弧，弧容量為變電站允許的負荷值，弧費用為變電站單位負荷的費用。
  7. Secondly, it mainly analyses the actuality of china shipping agency longkou and mentions the main problems that the company is faced to inside herself

    最後，文章通過建立帶虛擬變量的回歸模型，對龍口地區的船代市場進行了定量的預測。
  8. Chapter 4, empirical test. this part uses the var models to measuring the var of shanghai stock market and shenzhen stock market and analyzed the conclusion. chapter 5, introduce the definition of marginal var, component var and increment var and give empirical test

    本部分首先給出了本文的研究方法一摩根集團採用的risk一metrics方法、基於garch模型的garch一t 、 garcll一右ed模型和考慮到我國政策多變性帶兩個虛擬變量的garch一t模型，基於極值理論的var一x方法。
  9. As a part of the civil 863 plans, two multiple - contact models for two kinds of braking system are built in the paper, in which contact fields are described as coons surfaces, initial velocity is programmed in fortran. the thermal - mechanical coupling braking processes are simulated for the first time by msc. marc, the general - used nonlinear fem software. time distributions of the velocity, the stress and the temperature of the components under various initial velocity and brake force are obtained, which offer theoretic gist to study the life of the wheel, the disc and so on

    作為國家行業863重大課題《鐵路機車車輛虛擬樣機系統》的一部分，本文在研究接觸問題和熱?機耦合問題數值方法的基礎上，採用國際上通用的非線性有限元分析軟體msc . marc建立了踏面制動和盤形制動主要部件的多體接觸計算模型，其中用解析方法描述，即用nurb曲線、高斯曲面來描述接觸區域，用fortran語言編寫定義初速度的用戶子程序，首次對兩種制動過程熱?機耦合進行了數值模擬，定量給出了主要制動部件在不同初速度、不同制動力下各個時刻的速度、應力和溫度的變化規律，為研究車輪、閘瓦以及制動盤壽命提供了理論依據。
  10. Then it gives some advices about raising the tfp. the dissertation ' s main contribution lies in using malmquist - dea method and regression techniques for limited dependent variable models with random effects

    本論文的主要貢獻在於把擴展的malmqust dea方法引入交通運輸業並運用虛擬因變量回歸模型考察全要素生產率變化的影響因素。
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