Module Homomorphisms on Random Normed Modules

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半环上的素、半素、完全素、完全半素模糊理想

引出半环中模糊点生成的模糊理想的定义,讨论了它的一些性质,并用它刻画了半环中素、半素、完全素、完全半素模糊理想,最后讨论了这几类理想的关系。     

多模辐射场的广义非线性高阶差压缩——N次方X压缩的一般理论

本文在发展现有理论的基础上,提出了多模(2q模)辐射场的广义非线性高阶差压缩(即N次方X压缩)的定义,给出N次方X压缩效应的压缩度的计算公式,并对N-X最小测不准态和N-X压缩最小测不准态等进行了详细讨论.指出,MarkHilery在文献6中所提出的有关双模辐射场的“差压缩”的定义,仅仅是本文所提出的多模辐射场的广义非线性高阶差压缩(即N次方X压缩)的一般性定义在q=1、N=1条件下的特例.     

Nonparametric long term prediction of stock returns with generated bond yields

Recent empirical approaches in forecasting equity returns or premiums found that dynamic interactions among the stock and bond are relevant for long term pension products. Automatic procedures to upgrade or downgrade risk exposure could potentially improve long term performance for such products. The risk and return of bonds is more easy to predict than the risk and return of stocks. This and the well known stock-bond correlation motivates the inclusion of the current bond yield in a model for the prediction of excess stock returns. Here, we take the actuarial long term view using yearly data, and focus on nonlinear relationships between a set of covariates. We employ fully nonparametric models and apply for estimation a local-linear kernel smoother. Since the current bond yield is not known, it is predicted in a prior step. The structure imposed this way in the final estimation process helps to circumvent the curse of dimensionality and reduces bias in the estimation of excess stock returns. Our validated stock prediction results show that predicted bond returns improve stock prediction significantly.     

Electrochemically induced aggregation of intra-particle cationic nanogel complexes with a stoichiometric amount of bound polyanions

The present study aimed to see the effect of an applied electric field on the stability of a colloid system in which overall electroneutrality is maintained in a metastable state. We employed two polyelectrolyte nanogels (PENG) based on N,N′-methylenebisacrylamide (MBA)-cross-linked terpolymer composed of N-isopropylacrylamide (NIPA), acrylic acid (AAc) and 1-vinylimidazole (VI) and MBA-cross-linked copolymer of NIPA and VI. The complexes of these PENG particles with potassium poly(vinyl alcohol) sulfate (KPVS) were formed in an aqueous HCl solution (1 mM, pH 3) which allows a complete ionization of the PENG-fixed imidazole groups. The amount of KPVS anions was adjusted so as to become equivalent to that of PENG-fixed cations. The complex dispersion was electrolyzed in a simple cell made of a glass tube. A fine platinum wire was used as an electrode for both cathode and anode. It was suggested that the electrochemically induced increase in pH in the cathodic side causes the aggregation of the complex particles due to a partial dissociation of the bound polyanions from the complex.     

Analysis of regression in game theory approach

Working with multiple regression analysis a researcher usually wants to know a comparative importance of predictors in the model. However, the analysis can be made difficult because of multicollinearity among regressors, which produces biased coefficients and negative inputs to multiple determination from presum ably useful regressors. To solve this problem we apply a tool from the co‐operative games theory, the Shapley Value imputation. We demonstrate the theoretical and practical advantages of the Shapley Value and show that it provides consistent results in the presence of multicollinearity. Copyright © 2001 John Wiley & Sons, Ltd.     

基于同步载波提取的光纤传感器相位生成载波解调方法

利用3×3耦合器和法拉第旋转镜等光学元件,构造了一个基于迈克尔逊干涉系统的光纤振动传感器.使用外调制的方法对传输光进行相位生成载波调制,并将该光纤振动传感器应用于长距离的安全监测中.通过对该传感器的干涉输出信号进行贝塞尔展开分析,发现干涉输出信号中含有与外调制所使用的载波频率相同的信号成分.因此,使用一个中心频率为载波频率且通带很窄的带通滤波器,可以同步地提取载波信号.同步提取的载波信号用于干涉输出信号的相位生成载波被动零差解调,可以得到作用于光纤振动传感器上的外界振动信号.本文提出了从输出信号中同步提取载波的方法,通过理论推导得出了该方法的可行性,并且通过软件仿真和实验验证了该理论的正确性.文中还对提取的载波受低频信号干扰,造成其幅度不稳定的现象进行分析并提出了解决方法.研究表明,同步载波提取法适用于相位调制器与干涉信号输出端距离较远,相位生成载波解调需要的同源载波获取较困难的情况.     

Fibonacci integers

A Fibonacci integer is an integer in the multiplicative group generated by the Fibonacci numbers. For example, 77=21⋅55/(3⋅5) is a Fibonacci integer. Using some results about the structure of this multiplicative group, we determine a near-asymptotic formula for the counting function of the Fibonacci integers, showing that up to x the number of them is between and , for an explicitly determined constant c. The proof is based on both combinatorial and analytic arguments.     

Asymmetric integral as a limit of generated Choquet integrals based on absolutely monotone real set functions

We introduce a generated Choquet integral with respect to absolutely monotone and sign stable set functions. Another type of integrals defined with respect to such a set function is obtained as a limit of an appropriate sequence of generated Choquet integrals.     

基于同步载波提取的光纤传感器相位生成载波解调方法

利用3×3耦合器和法拉第旋转镜等光学元件,构造了一个基于迈克尔逊干涉系统的光纤振动传感器.使用外调制的方法对传输光进行相位生成载波调制,并将该光纤振动传感器应用于长距离的安全监测中.通过对该传感器的干涉输出信号进行贝塞尔展开分析,发现干涉输出信号中含有与外调制所使用的载波频率相同的信号成分.因此,使用一个中心频率为载波...