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二次多项式
    A Necessary and Sufficient condition of Existence for C~1 Monotonity preserving Piecewise Quadratic Polynomial Interpolation
    C~1连续分段二次多项式保单调插值存在的充要条件
    Convexity Preserving C~1Piecewise Quadratic Polynomial Interpolant
    保凸C~1分段二次多项式插值方法
    Decomposition Conditions and Method of Real Coefficient Quadratic Polynomial in Two Elements
    实系数二元二次多项式在R中可分解的条件及分解方法
    Discussion on Linear Center System Disturbedby Impulse of Quadratic Polynomial
    线性中心系统二次多项式脉冲扰动问题
    Realization of Conversion from the 54~(th) Coordinate to the 80~(th) Coordinate by Using the Quadratic Polynomial
    用二次多项式实现54坐标到80坐标的转换
    A-optimal Design for Duality Quadratic Polynomial Regression Models in Circle Region
    圆域上的二元二次多项式回归模型的最优设计
    In this paper we find a new estimate method of superconvergence for first boundary value problems of second order equations, by using continuous decomposition quadratic polynomial space and establishing inequality of step length. With this method, we get the estimate of error of interpolation, || u - UI || 1 = 0(h3), and further the estimate of superconvergence of Galerkin solutions at knot pi, || u-uh || 1 = 0(h3).
    本文就二阶方程的第一边值问题,采取连续分片二次多项式空间,建立步长不等式,给出超收敛一种估计方法,得到差值误差估计:‖u—u_I‖_1=0(h~3),从而得出节点p_i上的GALERKIN解的超收敛估计:‖u—u~h‖_1=0(h~3)。
    The variation of acid content showed a high→low→high pattern,with a quadratic polynomial reversed parabola and a correlation coefficient r=0.9958 ** (n=7).
    果实酸含量呈高→低→高的变化规律 ,拟合曲线为二次多项式反抛物线 ,相关系数r =0 .9958 (n =7)。
    In this paper we give a simple method for factorization in real number field to binary quadratic polynomial F(x,y)=ax 2+bxy+cy 2+dx+ey+f and, by using the method, quadratic polynomials in several elements can be decomposed simply.
    给出二元二次多项式 F(x,y) =ax2 +bxy +cy2 +dx +ey +f在实数范围内因式分解的一种简便方法 . 利用这种方法 ,还可以简便地分解多元二次多项式
    It was observed that JMB142 grew faster on KB culture medium than on NB. Orthogonal test for 5 several main factors affecting bacterial fermentation and growth on KB were arranged, and quadratic polynomial regression model was established.
    通过五个影响因子的正交试验分析了JMB142在KB培养液中的生长情况,并建立二次多项式回归模型。
    Quadratic polynomial method has been applied widely in satellite image retification.
    二次多项式方法在卫星影像纠正处理过程中已得到广泛应用。
    The FBG is adhered to a cantilever to be compressed and stretched,the experimental value of first and second order strain sensitivity coefficients of FBG are given by linear and quadratic polynomial fit method.
    并将光纤Bragg光栅粘贴在悬臂梁上进行拉伸和压缩 ,得到了与应变对应的光纤Bragg光栅中心波长偏移量 ,通过线性和二次多项式拟合 ,得到了光纤Bragg光栅一阶、二阶应变灵敏度系数的实验值 ;
    Result TCR MF(unit is 10 -4 )increased dose D(in Gy)dependently after cultured for 7 days. Data were found to be fitted optimal by a quadratic polynomial dose-response model,which could be described by the formula TCR MF=2.74+6.05D+7.60D 2(F=36 237.16,P<0.01,adjusted R 2=0.999 9).
    结果 培养 7d后 ,TCRMF (10 -4)随照射剂量D (Gy)的增加而增高 ,最佳拟合曲线为二次多项式模型 ,其方程式可描述为 :TCRMF =2 . 74+ 6. 0 5D + 7 60D2 (F =3 62. 3 7 16,P <0 . 0 1,经校正的R2 =0 . 9999)。
    In growing season,the dynamic models of heavy metal content for Trifolium pratense and Dactylis glomerata are generally simulated using quadratic polynomial(y=cx2+bx+a) and the curves show a declining-rising types(b<0,c>0),but using a exponential function(y=aebx) for Mn of D. glomerata and the curve shows a rising type(b>0).
    在生长期内,红三叶Trifolium pratense和鸭茅Dactylis glomerata重金属元素含量的动态模型,通常符合二次多项式(y=cx2+bx+a),呈降-升型(b<0,c>0),只有鸭茅中的Mn为指数函数(y=aebx),呈上升型(b>0)。
    having [Mg2+] as the independent variable, the quadratic polynomial regression equation is y=-46.916x2+248.01x-213.81 (R2=0.9340)(Equation 2);
    自变量为[Mg2+]的二次多项式回归方程为y=-46.916x2+248.01x-213.81(R2=0.9340);
    and having both of [K+] and [Mg2+] as the independent variables, the quadratic polynomial regression equation is y=-17.55-4.82 [K+] +0.20 [K+] 2+75.77 [Mg2+] -19.47 [Mg2+] 2(R2=0.9881)(Equation 3)。
    自变量为[K+]和[Mg2+]的二次多项式回归方程为y=-17.55-4.82[K+]+0.20[K+]2+75.77[Mg2+]-19.47[Mg2+](R2=0.9881)。
    Piecewise Quadratic Polynomial Functions and Applications to Linear Time-Invariant Systems
    分段二次多项式函数及在线性时不变系统中的应用
    Operational Matrices of Piecewise Quadratic Polynomial Functions with Application to Linear Time-Varying Systems
    分段二次多项式函数的运算矩阵及在线性时变系统中的应用
    The Problems of Homoclinic Bifurcation for Type(Ⅰ) Planar Quadratic Polynomial Systems
    (Ⅰ)类平面二次多项式系统的同宿分支问题(英文)
    Normal quadratic polynomial fitting seismic data
    常规二次多项式拟合地震数据
 

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