针对多孔介质特殊的孔隙结构特征，建立了一个新的简化孔隙力学模型，并由该模型导出了渗透率与有效应力的二次多项式关系。
A new simple pore mechanics model is established based the pore structure of low permeability reservoir rock, from which the quadratic equation of effective stress and permeability can be educed.
采用二次多项式逐步回归分析法建立了三元不对称有机磷酸酯类杀虫剂的多元非线性构效关系回归模型。
Nonlinear multiple regression model on the structure activity relationship of ternary dissymmetric organic phosphate insecticide is obtained by quadratic polynomial stepwise regression method.
然后利用二次多项式模型拟合文本行的中心线，并建立径向失真校正的目标函数。
Then, it used second order polynomial to fit the Central Line of text line, and constructed the object function of lens distortion.
建立了双离合器式自动变速器起步、换挡动力学模型。利用线性二次型最优控制理论研究了离合器接合、分离规律。
The starting and shifting dynamics models for double clutch transmission (DCT) are built, and linear quadric optimal control theory is used to study the engaging and disengaging laws of clutch.
基于可验证的分布式密钥生成方案，设计了一个可验证的广义二次拍卖模型。
Based on distributed key generation protocol, we design a verifiable Generalized Vickrey Auction protocol.
基于可验证的分布式密钥生成方案，设计了一个可验证的广义二次拍卖模型。
Based on distributed key generation protocol, we design a verifiable Generalized Vickrey Auction protocol.
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