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991.
992.
993.
李克特式量表与模糊语言量表计分的差异比较——以梯形模糊数仿真为例 总被引:4,自引:0,他引:4
李克特式量表是社会科学研究中常用的计分方式,但也有为数不少的研究采用模糊语言量化方式.为了了解模糊语言的计分性质,文中以梯形模糊数为例,对李克特式量表与模糊语言的计分误差进行了比较.仿真结果表明,模糊语言量表计分误差小于李克特式量表,从而为模糊语言量表的应用者以及相关的研究者提供了参考. 相似文献
994.
This paper deals with a chance constrained programming model, where both fuzziness and randomness are present in the objective
function and constraints. The concept of fuzzy random variable, mean and variance of fuzzy random variable, minimum of fuzzy
numbers are used in the model. The methodology is verified through a numerical example. 相似文献
995.
Reed-Solomon (RS) and Bose-Chaudhuri-Hocquenghem (BCH) error correcting codes are widely used in digital technology. An important problem in the implementation of RS and BCH decoding is the fast finding of the error positions (the roots of error locator polynomials). Several fast root-finding algorithms for polynomials over finite fields have been proposed. In this paper we give a generalization of the Goertzel algorithm. Our algorithm is suitable for the parallel hardware implementation and the time of multiplications used is restricted by a constant. 相似文献
996.
Soheyl Tadjiki Shoeleh Assemi Cassandra E. Deering John M. Veranth Jan D. Miller 《Journal of nanoparticle research》2009,11(4):981-988
A rapid, high-resolution methodology for characterization, separation, and quantification of unlabeled inorganic nanoparticles
extracted from biological media, based on sedimentation field-flow fractionation and light scattering detection is presented.
Silica nanoparticles were added to either human endothelial cell lysate or rat lung tissue homogenate and incubated. The nanoparticles
were extracted by acid digestion and then separated and characterized by sedimentation field-flow fractionation. Fractions
collected at the peak maxima were analyzed by transmission electron microscopy (TEM) to verify the size and shape of the isolated
nanoparticles. Using the linear relationship between the particle number and the area under the fractogram, the recoveries
of particles from the tissue homogenate and cell lysate were calculated as 25% and 79%, respectively. The presented methodology
facilitates detection, separation, size characterization, and quantification of inorganic nanoparticles in biological samples,
within one experimental run. 相似文献
997.
基于左连续伪T-模的非可换模糊逻辑系统PUL* 总被引:2,自引:0,他引:2
对P.Hájek建立的模糊逻辑系统psMTL进行了扩充,基于一般左连续伪T-模提出了非可换模糊逻辑系统PUL~*,证明了它的可靠性定理.同时,以PUL~*系统的Lindenbaum代数结构为背景引入PUL~*-代数概念,建立了相应的滤子理论,得到PUL~*-代数的正规素滤子定理,借此证明了PUL~*系统的完备性. 相似文献
998.
E. A. Dem’yanov E. V. Djukova 《Computational Mathematics and Mathematical Physics》2007,47(3):518-526
New estimates are derived for the computational complexity of the problem of constructing irredundant coverings of an integer matrix (search for maximal conjunctions of a special logical function). 相似文献
999.
设G(V,E)是阶数至少是3的简单连通图,若f是图G的k-正常边染色,使得对任意的uv∈E(G),C(u)≠C(v),那么称f是图G的k-邻点可区别边染色(k-ASEC),其中C(u)={f(uw)│uw∈E(G)},而χa′s(G)=min{k│存在G的一个k-ASEC},称为G的邻点可区别边色数.本文给出扇的倍图D(Fm)的邻点可区别边色数. 相似文献
1000.
Guisheng Zhai Xuping Xu Hai Lin Anthony N. Michel 《Nonlinear Analysis: Theory, Methods & Applications》2006
In this paper, we study the stability property for a class of switched linear systems whose subsystems are normal. The subsystems can be continuous-time or discrete-time ones. We show that when all the continuous-time subsystems are Hurwitz stable and all the discrete-time subsystems are Schur stable, a common quadratic Lyapunov function exists for the subsystems and thus the switched system is exponentially stable under arbitrary switching. We show that when unstable subsystems are involved, for a desired decay rate of the system, if the activation time ratio between stable subsystems and unstable ones is less than a certain value (calculated using the decay rate), then the switched system is exponentially stable with the desired decay rate. 相似文献