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2019年01月20日

【期刊论文】Reliability of Linear Consecutive-k-Out-of-n Systems With Two Change Points

彭锐

IEEE TRANSACTIONS ON RELIABILITY,2018,0(0):0

2018年08月01日

摘要

Linear consecutive-k-out-of-n systems are frequently used to model vacuum systems, telecommunication networks, oil pipeline systems, and the photographing of nuclear accelerators. Substantial research has been devoted to analyzing the reliability of such systems, using many different approaches and assumptions. Nevertheless, existing reliability formulas may not be suitable for all real systems. This paper therefore proposes a nonrecursive closed-form expression for a consecutive-k-out-of-n system that is made up of three types of nonidentical components. The corresponding dynamic survival function and mean time to failure are derived for the suggested system, and numerical experiments are carried out to illustrate its application.

关键词: Consecutive-k-out-of-n systems,, mean time to failure (, MTTF), ,, reliability,, survival function.,

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2019年01月20日

【期刊论文】Reliability of interdependent networks with cascading failures Niezawodność współzależnych sieci z uszkodzeniami kaskadowymi

彭锐

Eksploatacja i Niezawodnosc – Maintenance and Reliability,2018,2(2):273-277

2018年04月01日

摘要

The reliability of network systems of various structures has been studied by many researchers. However, most of the works just consider the reliability of a single network system. In practice, different networks may be interdependent such that the failure in one network may result in the failure in another network. The cascading failures have been shown to be catastrophic by some researchers. However, the quantitative evaluation for the reliability of interdependent networks has not been proposed. In this paper, a multi-valued decision diagram based approach is presented to evaluate the reliability of interdependent networks. Illustrative examples are proposed to demonstrate the application of the framework.

关键词: reliability,, networks, cascading failure,, interdependency,, multi-valued decision diagram.,

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2019年05月21日

【期刊论文】The extension and convergence of mean curvature flow in higher comdimsion

K. F. Liu, H. W. Xu, F. Ye, E. T. Zhao

Trans. Amer. Math. Soc.,2018,370(3):2231-2262

2018年03月01日

摘要

In this paper, we investigate the convergence of the mean curvature flow of closed submanifolds in Euclidean space . We show that if the initial submanifold satisfies some suitable integral curvature conditions, then along the mean curvature flow it will shrink to a round point in finite time.

关键词: Mean curvature flow,, submanifold,, maximal existence time,, convergence theorem,, integral curvature

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2019年09月12日

【期刊论文】Effect of Corrosion Inhibitors on Chromate-free Passivation of Hot-Dip Galvanized Steel

Liyang DONG, Bo GAO

MATERIALS SCIENCE,2018,24(3):265-270

2018年11月16日

摘要

Commercially available passivation methods for white-rust protection of Hot-Dip Galvanized steel have been applied for chromate passivation. However, hexavalent chromium (Cr-VI) is highly toxic and carcinogenic. Therefore, in this paper, we put forth a new means for white-rust protection of Hot-Dip Galvanized steel based on the effects of corrosion inhibitors. In this study, the passivation solution combines the advantages of inorganic salt passivation, silane passivation and resin passivation. The corrosion resistance of the inorganic and organic composite passivation films with corrosion inhibitors was determined by a neutral salt spray test and electrochemical Tafel polarization curves. The surface chemistry of the coatings was monitored by scanning electron microscopy (SEM), X-ray Photoelectron spectroscopy (XPS) and Fourier transform infrared reflection absorption spectroscopy (FTIR). And further studying on the formation mechanism of the passivation film was carried out. The SEM indicated that the top surface of the passivation film was transparent, smooth, uniform and compact. The XPS and FTIR results showed that the passivation film consisted mainly of organic functional groups including-(CH2)n-, -OH, N-H, C=O, C-Si, C-O-C, C-N, Si-O-Si, Si-O-C and so on. The corrosion resistance of passivation film with corrosion inhibitors was significantly improved than that of the passivation film without corrosion inhibitor. After 96h of the corrosion test, the corrosion area was found to be less than 5 %, which indicated that the passivation film greatly improved the corrosion resistance of the hot-dip galvanized sheet, and exhibited a very good protective effect so that can met some industrial applications.

关键词: corrosion,, hot-dip galvanized steel,, chromium free,, corrosion inhibitor,, passivation.,

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2020年11月26日

【期刊论文】行为建模及其在多Agent系统中的应用

冯翔, 张进文, 虞慧群

计算机科学,2018,42((9)):214-219

2018年11月14日

摘要

五行学说蕴含信息动力学,然而在网络中却一直未被很好地利用,为此提出一种基于五行原理的五行粒子模型方法来求解多Agent系统的分布式问题。五行粒子模型可以很好地描述和处理多Agent系统中Agent之间存在的随机、并发、多类型的交互行为。基于五行粒子模型内部存在的生克关系,以及五行自身蕴含的稳定性和平衡性,对五行粒子模型和多Agent系统分布式问题求解进行探讨,并对多Agent系统中的各个Agent进行行为建模,进而提出多Agent系统分布式问题求解的五行粒子模型算法。最后,通过实验验证了该算法的有效性。

关键词: 五行粒子模型, 行为建模, 多Agent系统,, 资源分配

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2021年01月09日

【专著(包括教材、译著等)】MATHEMATICAL REALITY — My Philosophy on Mathematics with Reality

毛林繁, 毛林繁

美国:The Education Publisher Inc.,2018

2018年10月25日

摘要

The reality of a thing is its state of existed, exists, or will exist in the world, independent on the understanding of human beings, which implies that the reality holds on by human beings is local or gradual, and mainly the Mathematical reality, not the reality of a thing. Is our mathematical theory can already be used for understanding the reality of all things in the world? The answer is not because one can not holds on the reality in many fields. For examples, the elementary particle system or ecological system, in which there are no a classical mathematical subfield applicable, i.e., a huge challenge now is appearing in front of modern mathematicians: To establish new mathematics adapting the holds on the reality of things. I research mathematics with reality beginning from 2003 and then published papers on fields, such as those of complex system and network, interaction system, contradictory system, biological populations, non-solvable differential equations, and elementary established an entirely new envelope theory for this objective by flows, i.e., mathematical combinatorics, or mathematics over graphs, which is an appropriated way for understanding the reality of a thing because it is complex, even contradictory. This book collects my mainly papers on mathematics with reality of a thing from 2007 – 2017 and most of them are the plenary or invited reports in international conferences.

关键词: Mathematics on reality,, geometry,, combinatorics,, differential equation,, philosophy

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