Low-complexity multiplexer-based normal basis multiplier over GF(2m)

We present a new normal basis multiplication scheme using a multiplexer-based algorithm. In this algorithm, the proposed multiplier processes in parallel and has a multiplexer-based structure that uses MUX and XOR gates instead of AND and XOR gates. We show that our multiplier for type-1 and type-2 normal bases saves about 8% and 16%, respectively, in space complexity as compared to existing normal basis multipliers. Finally, the proposed architecture has regular and modular configurations and is well suited to VLSI implementations.     

亚纯函数系数的高阶线性微分方程解的不动点和超级

研究了亚纯函数系数的高阶线性微分方程的解的不动点与超级问题,得到了齐次和非齐次高阶线性微分方程解的不动点和超级的两个结果,所得结果推广了一些相关结果.     

Determination of thigh volume in youth with anthropometry and DXA: Agreement between estimates

Abstract

This study examined the agreement between estimates of thigh volume (TV) with anthropometry and dual-energy x-ray absorptiometry (DXA) in healthy school children. Participants (n=168, 83 boys and 85 girls) were school children 10.0–13.9 years of age. In addition to body mass, height and sitting height, anthropometric dimensions included those needed to estimate TV using the equation of Jones & Pearson. Total TV was also estimated with DXA. Agreement between protocols was examined using linear least products regression (Deming regressions). Stepwise regression of log-transformed variables identified variables that best predicted TV estimated by DXA. The regression models were then internally validated using the predicted residual sum of squares method. Correlation between estimates of TV was 0.846 (95%CI: 0.796–0.884, S_y·x=0.152L). It was possible to obtain an anthropometry-based model to improve the prediction of TVs in youth. The total volume by DXA was best predicted by adding body mass and sum of skinfolds to volume estimated with the equation of Jones & Pearson (R=0.972; 95%CI: 0.962–0.979; R ²=0.945).     

非线性Fredholm积分方程与分岔

本文研究了非线性Frcdholm积分方程的解数随参数k变化而发生分岔的规律:Ⅰ)当k〈0时,方程至少有一个负解;当0〈k〈k_1时,方程至少有一个正解。Ⅱ)当k〉k_n时,方程至少有(2n—1)个正解。并将这些结果应用到非线性Sturm—Iiouville问题。     

量热和热分析在生物大分子体系研究中的应用

讨论了差示扫描量热法(DSC)和等温滴定量热法(ITC)用于生物大分子体系研究所得到的一些实验结果。内容包括了沙冬青抗冻蛋白热滞活性的测定、胶束解体浓度的确定二个方面内容。所有研究结果都给出了有关生物大分子变化的明确信息和确切结论。     

关于丢番图方程x4+my4=z4

利用初等数论方法及Fermat无穷递降法，证明了丢番图方程x′ my′＝z′，在m＝12，—48，42，—168时均无正整数解；在m＝—12，—42，48，168时均有无穷多组正整数解，并进一步得出了其解的通解公式，从而获得了Tijdeman猜想与广义Fermat猜想的进一步结果．     

二阶变系数线性微分方程的特解

在已知二阶变系数齐次微分方程的一个非零特解的条件下,可以得到该齐次微分方程和与它对应的非齐次微分方程的通解,本文给出了在二阶变系数齐次微分方程的系数满足一定条件下的特解形式.     

导出反平方力场中质点运动轨迹方程的一种简易方法

本文介绍了偏心率矢量R(也称Runge-lenz矢量)以及利用矢量R导出反平方有心力场中质点运动轨迹方程的方法,并讨论了有关的问题。     

夸克的反常磁矩

在Dyson-Schwinger(DS)方法的框架下,我们计算了夸克的反常磁矩。结果表明,在模型胶子传播子三组参数下,夸克发生手征自发对称性破缺的时候,获得了一定的反常磁矩。     

关于 Volterra积分微分方程解的有界性研究

利用Liapunov泛函方程和Razumikhin技巧,研究Volterra积分微分方程解的一致有界性与一致最终有界性.结果给出了Volterra积分微分方程解的一致有界及一致最终有界的充分条件.