Part two introduces the theory of panel data. the basic form of panel data is : yi t = it + xi t it + uit, i = 1, 2, …, n ; t = 1, 2, …, t panel data is used for describing the instance of swatch in a collectivity in some time, and observing every unit in swatch multi - scale. basing on the different hypothesis of ui, panel data has fixed effect model and random effect model, if ui is a unit constant ( corresponding to the dummy variable of
基於分析結果,本文給出了改革我國公司治理結構的若干建議: ( 1 )股權性質方面,培育有效的國家股持股主體; ( 2 )股權結構方面,逐漸調整股權結構,減少第一大股東持股比例,增加除第一大股東以外的大股東的股權集中度; ( 3 )董事會方面,採取奇
數型董事會規模,並完善獨立董事的生成機制; ( 4 )激勵制度方面,應加大董事及總經理的持股比例。
The motion of plunger of oleo damper excited by colored gaussian noise with exponential correlation time is governed by first order nonlinear differential equation
摘要油液阻尼器受指
數型高斯色噪聲外激勵時,活塞在油腔內的運動可用一階非線性動力學方程描述。
Onefold model the asset of authority card mark is single share, the asset of mark of combination authority card is many stocks combination, index authority card is the asset of mark with all sorts of share price indexes
單一
型權證標的資產為單一股票,組合
型權證標的資產為多個股票組合,指
數型權證則以各種股價指
數為標的資產。
The existence of dichotomies and periodic solutions of periodic system
指
數型二分性和周期系統的周期解
Under action of uniformly or polynomial distributed load, upper and lower critical loads of revolving shells ( including conical shells, spherical shells and quartic polynomial shells ) with uniform thickness, linearly, exponentially or polynomial variable thickness were evaluated
給出了均布或多項式分佈荷載作用下,等厚度、線性、指
數型或多項式
型變厚度的圓錐殼、球殼或四次多項式
型旋轉殼的上、下臨界荷載。
In line with the policy of continued development the manufacturer reserves the right to amend the specifications without prior notification , the pictures and date in the stylebook are consult only , if there is fluctuation , according to the real object please
基於產品不斷改進的需要,廠家有權未經通知修改技術參
數,
型錄所附圖片與資料僅供參考,如有變動,以實物為準。
Butterworth - type and bessel function - type two ways are used for design of bandpass filter for receiver, and with the help of eda simulation tools, the bold plot and the group delay characteristics of the filters designed are compared
摘要採用巴特沃思
型和貝塞爾函
數型2種方法進行接收機帶通濾波器設計,藉助eda對該濾波器進行波特圖和群延遲特性的比較。
A pure functional language like haskell might offer type hierarchies, discriminated unions, quantification, existential types, and so on, but oop languages typically lack these things
象haskell那樣的純函
數型語言可以提供類
型層次結構、區別合併、量化、存在類
型等等,但oop語言通常缺乏這些功能。
The circulation of positive pna index pattern is prominent in the case of persistent forcing of negative ssta in west wind drift region or positive ssta in tropical eastern pacific, which is the typical ssta pattern during el nino peak - mature phase
西風漂流區持續負ssta時或者熱帶中東太平洋持續正ssta時,阿留申低壓均有所加強,正pna指
數型的大氣環流特徵顯著。而當相反符號的ssta持續作用時,大氣中阿留申低壓減弱,對應pna指
數為負。
“ fundamental indexes : current and future applications. ” institutional investor ' s fifth annual exchange - traded funds review
「基本面指
數:現在和未來的應用。 」機構投資者的第五期年度交易所交易基金(又稱指
數型股票基金)評論。
38 review in detail the fpsc for attribute data. using same process as with the variable data , does it comply to our requirements
詳細的檢查fpsc中的計
數型數據。對于計量
型數據也使用相同的程序。是否滿足我們的要求?
Studies on translocation and distribution of photosynthate in rice variety yuexianzhan with high harvest index
高收獲指
數型水稻品種粵香佔光合產物運轉與分配特性的研究
Typically the expense ratio of an index fund is below 0. 2 percent
一般而言,指
數型基金的費用比率佔0 . 2 %以下。
Abstract : we present here two parametric statistics for linkage analysis ( linkage and genehunter ). using the simulated pedigrees, we introduced the usage of the two methods
摘要通過擬合的
數據資料,對目前最常用的參
數型連鎖分析方法進行了比較,為有針對性地選擇連鎖分析方法提供了依據。
Pass the interlace series type linear differential equation that coefficient contains power function and arrangement number change into the linear differential equation of successive integral, have found out the theory and method that begs this kind of equation to know to untie. theorem have happened have given strict proof, and through example, have introduced it ' s application
摘要通過把系
數含有冪函
數與排列
數的交錯級
數型線性微分方程化為可逐次積分的線性微分方程,找出了求這類方程通解的方法與理論,把所得定理給出了嚴格的證明,並通過實例介紹了它的應用。
In order to make this technique be with the topological adaptability, we propose an efficient topological technique, which is based on the change of region euler number
同時也提出了基於區域歐拉
數的拓撲自適應處理方案,有效地解決了參
數型活動圍道方法中的拓撲自適應性問題。
Multipath time delay estimation based on adaptive parameters approach using fourth - order cumulants
基於四階累積量的自適應參數型多徑時延估計