| 1. | 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 |
| 2. | In the case ( 3 ) . we also have that each critical component and its inverse images under iterations are homeomorphic to the filled julia set of a quadratic polynomial with connected julia set . each of the other components of a ' ( / ) is a single point
对于（ 3 ） ，我们进一步有：填充juia集包含临界点的周期分支及其迭代逆象同胚于一个有连通julia集的二次多项式的填充julia集，而其他分支都是单点。 |
| 3. | Yoccoz introduced a powerful puzzle technique and obtained the result that if the quadratic polynomial pc ( z ) with , which has no indifferent cycle , is not infinitely renormalizable , then the julia set j ( pc ) of pc is locally connected while dm is also locally connected at c
利用这个技巧，他得到了对c m ，如果二次多项式pc ( z )不是无穷可重整化的，并且没有抛物周期点，那么julia集j ( pc )是局部连通的，并且m在c也是局部连通的。 |
| 4. | At the end of the last century , c . j . yoccoz is made significant contributions to the theory of complex dynamics , one of which is the study of the local connectivity of the julia sets of quadratic polynomials pc ( z ) = z2 + c and the mandelbrot set m . in his work
C yoccoz对复动力系统理论作出了重要的贡献，其中之一就是对二次多项式pc ( z ) = z ~ 2 + c的julia集和mandelbrot集m的局部连通性的研究。在他的工作中， yoccoz引进了一种强有力的方法? ?拼图技巧。 |
| 5. | In the late part of the active developing period , the temporal variation of sediment concentration and sediment transport ratio of each rainfall can be expressed by exponent function and the variation presents quadratic polynomial function in the stable developing period . the spatial variation character of sediment yields with space of the experimental watershed model . the active position of soil erosion and sediment yield of the experimental watershed model changes from the downside to the upside with the developing process of the watershed model
流域模型侵蚀产沙空间变化特征侵蚀产沙的活跃部位随流域模型发育过程呈现由流域模型下部逐渐向上部发展特征，其中流域模型下中部为发育初期时段和发育活跃时段侵蚀产沙的活跃部位，流域模型上部是发育稳定时段侵蚀产沙的活跃部位。 |
| 6. | In the analysis process , the six main peaks in 88 - 100 kev region , including the y peaks of 234th , the k peaks of th and the k peaks of u , are chosen . the smoothly joined gaussian function and low energy exponential tail is taken as peak shape function and quadratic polynomial is taken as background function . the two functions are fitted to gether to calculate the peak area
在分析过程中，选择了88 - 100kev能区的~ ( 234 ) th的射线峰， th的k _射线峰以及u的k _射线峰共六个主要能峰，通过采用高斯函数和低能指数尾部光滑联接的峰形函数和二次多项式本底函数一起拟合，来求出峰面积；而该能区所有能峰的探测效率可以认为是近似相等的，由此得到铀富集度。 |
| 7. | A . douady had suggested to study dynamics of biquadratic polynomials . by definition , a biquadratic polynomial is the composition of two quadratic polynomials , so it is an even quartic polynomials which can be written as f ( z ) = z4 + az2 + 6 , where a , b are parameters . it is easy to see that / has a critical point at 0 and two symmetric critical points at
A . douadv曾建议对双二次多项式的动力系统进行研究，所谓双二次多项式就是两个二次多项式的复合，也即偶四次多项式，在一个线型共轭下可以记为fz ) = z ~ 4 + z ~ 2 + b ，这里o ， b是参数，点0是它的一个临界点，另外还有两个对称的临界点( ( - a ) 、 2 ) ~ 2 。 |
