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Applying DNA Computation to Error Detection Problem in Rule-Based Systems

Journal of Intelligent Learning Systems and Applications 2015年第1期7卷 21-36页

作者： Behrouz Madahian Amin Salighehdar Reza Amini Department of Mathematical Sciences University of Memphis Memphis USA Financial Engineering Department Stevens Institute of Technology Hoboken USA Department of Computer Science Florida International University Miami USA

As rule-based systems (RBS) technology gains wider acceptance, the need to create and maintain large knowledge bases will assume greater importance. Demonstrating a rule base to be free from error remains one of the obstacles to the adoption of this technology. In the past several years, a vast body of research has been carried out in developing various graphical techniques such as utilizing Petri Nets to analyze structural errors in rule-based systems, which utilize propositional logic. Four typical errors in rule-based systems are redundancy, circularity, incompleteness, and inconsistency. Recently, a DNA-based computing approach to detect these errors has been proposed. That paper presents algorithms which are able to detect structural errors just for special cases. For a rule base, which contains multiple starting nodes and goal nodes, structural errors are not removed correctly by utilizing the algorithms proposed in that paper and algorithms lack generality. In this study algorithms mainly based on Adleman’s operations, which are able to detect structural errors, in any form that they may arise in rule base, are presented. The potential of applying our algorithm is auspicious giving the operational time complexity of O(n*(Max{q, K, z})), in which n is the number of fact clauses;q is the number of rules in the longest inference chain;K is the number of tubes containing antecedents which are comprised of distinct number of starting nodes;and z denotes the maximum number of distinct antecedents comprised of the same number of starting nodes.

关键词： DNA Computing Rule-Based Systems Rule Verification Structural Errors

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Decolorization of Methyl Orange by a new clay-supported nanoscale zero-valent iron:Synergetic effect,efficiency optimization and mechanism

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Journal of Environmental Sciences 2017年第2期29卷 8-17页

作者： Xiaoguang Li Ying Zhao Beidou Xi Xiaoguang Meng Bin Gong Rui Li Xing Peng Hongliang Liu School of Environment Beijing Normal UniversityBeijing 100875China State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution Chinese Research Academy of Environmental SciencesBeijing 100012China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China School of Environmental and Municipal Engineering Lanzhou Jiaotong UniversityLanzhou 730070China Center for Environmental Systems Stevens Institute of TechnologyHobokenNJ 07030USA

In this study, a novel nanoscale zero-valent iron（n ZVI） composite material was successfully synthesized using a low-cost natural clay, ＂Hangjin 2~#clay＂（HJ clay） as the support and tested for the decolorization of the azo dye Methyl Orange（MO） in aqueous solution by n ZVI particles. According to the characterization and MO decolorization experiments, the sample with 5：1 HJ clay-supported n ZVI（HJ/n ZVI） mass ratio（HJ-n ZVI5） showed the best dispersion and reactivity and the highest MO decolorization efficiency. With the same equivalent Fe0 dosage, the HJ-n ZVI1 and HJ-n ZVI5 samples demonstrated a synergetic effect for the decolorization of MO： their decolorization efficiencies were much higher than that achieved by physical mixing of HJ clay and n ZVIs, or the sum of HJ clay and n ZVIs alone. The synergetic effect was primarily due to the improved dispersion and more effective utilization of the n ZVI particles on/in the composite materials. Higher decolorization efficiency of MO was obtained at larger HJ-n ZVI dosage, higher temperature and under N2 atmosphere, while the MO initial concentration and p H were negatively correlated to the efficiency. HJ clay not only works as a carrier for n ZVI nanoparticles, but also contributes to the decolorization through an ＂adsorption-enhanced reduction＂ mechanism. The high efficiency of HJ-n ZVI for decontamination gives it great potential for use in a variety of remediation applications.

关键词： Nanoscale zero-valent iron Clay Material optimization Methyl Orange

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基于基金持股的社会责任投资行为及绩效研究

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管理学报 2021年第12期18卷 1840-1850页

作者：张宬朱书尚吴莹陈铭权中山大学管理学院 School of Business Stevens Institute of Technology 广东省海外金融投资协会

以基金持股的企业社会责任(CSR)评分度量基金社会责任,探究中国基金社会责任投资的行为特征与绩效表现。关于投资行为的回归分析表明:我国社会责任投资类基金重视环保;基金社会责任具有规模效应和价值效应。基金社会责任总体而言有利于... 详细信息

以基金持股的企业社会责任(CSR)评分度量基金社会责任,探究中国基金社会责任投资的行为特征与绩效表现。关于投资行为的回归分析表明:我国社会责任投资类基金重视环保;基金社会责任具有规模效应和价值效应。基金社会责任总体而言有利于投资绩效,但基于基金社会责任分项评价的进一步研究表明:基金既能在一定程度上为环保牺牲绩效,也能通过关注狭义的社会责任理念以及股东权益保证自身收益。上述投资绩效所对应的3个维度依次与国际社会普遍接受的环境、社会和治理(ESG)维度相呼应,但根植于中国传统的道家和儒家文化。

关键词：社会责任投资基金社会责任基金持股CSR 基金绩效 ESG

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Microbiological Status and Nutritional Composition of Spices Used in Food Preparation

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Food and Nutrition Sciences 2015年第12期6卷 1134-1140页

作者： Khalil I. Ereifej Hao Feng Taha M. Rababah Sufyan H. Tashtoush Muhammad H. Al-U’datt Ghaid J. Al-Rabadi Peter Torley Malek Alkasrawi Department of Food Science and Human Nutrition University of Illinois Urbana-Champaign Urbana USA Faculty of Agriculture Jordan University of Science and Technology Irbid Jordan Department of Animal Production Faculty of Agriculture Mutah University Al-Karak Jordan School of Applied Science RMIT University Melbourne Australia Engineering Department Stevens Point University of Wisconsin Stevens Point USA

The present study showed significant initial microbial load, as well nutritional value of ten spices used widely across the world in food preparation. The microbiological tests demonstrated that sumac and cloves had the highest antimicrobial activity with respect to total plate counting and spore forming count. Results showed that chemical composition of the spices and herbs varied significantly. Dry matter content ranged between 83.6% and 92.4%. The highest ash content 10.4% was found in sweet cumin, protein 21.2% in cumin, fat 19.7% in sumac, fiber 59.2% in turmeric and carbohydrates 27.3% in sumac. These spices were also differing in their minerals content. Substantial amounts of Ca, Na, K and Mg were found, while Cu, Fe, P, Mn and Zn were present in trace amounts in all investigated spices.

关键词： Microbial Status Minerals Proximate Chemical Composition Spices

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Controlled Preparation of Monodisperse CoFe_2O_4 Nanoparticles by a Facile Method

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Journal of Wuhan University of technology(Materials Science) 2011年第2期26卷 258-262页

作者：王海 Key Laboratory of Fiber Optic Sensing technology and Information Processing of Ministry of Education Wuhan University of Technology

CoFe2O4 nanoparticles （NPs） were synthesized by coprecipitation method using FeCl3·6H2O and CoCl2·6H2O as *** synthesized conditions were optimized,such as added means of precipitator,quantity of precipitator,the mol ratio of Fe 3＋ to Co2＋,reaction temperature and pH *** synthesized material was characterized by XRD,TEM,FTIR,EDS,Raman and its magnetic properties were studied by *** experimental results confirm that the sample is cubic spinel structure CoFe2O4 with a narrow size distribution and a good dispersion ***2O4 NPs with well-controlled shape and size was obtained at 70℃.The magnetic properties indicate superparamagnetic behavior and good saturated magnetization.

关键词： CoFe2O4 nanoparticles coprecipitation method monodispersity superparamagnetism

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方法级别的细粒度软件缺陷定位方法

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软件学报 2019年第2期30卷 195-210页

作者：张文李自强杜宇航杨叶北京化工大学经济管理学院北京100029 北京工业大学经济管理学院北京100124 School of Systems and Enterprises Stevens Institute of Technology

当软件缺陷报告在跟踪系统中被指派给开发人员进行缺陷修复之后,缺陷修复人员就需要根据提交的缺陷报告来进行软件缺陷定位,并做出相应的代码变更,以修复该软件缺陷.在缺陷修复的整个过程中,软件缺陷定位占用了开发人员大量的时间.提出... 详细信息

当软件缺陷报告在跟踪系统中被指派给开发人员进行缺陷修复之后,缺陷修复人员就需要根据提交的缺陷报告来进行软件缺陷定位,并做出相应的代码变更,以修复该软件缺陷.在缺陷修复的整个过程中,软件缺陷定位占用了开发人员大量的时间.提出了一种方法级别的细粒度软件缺陷定位方法MethodLocator,以提高软件修复人员的工作效率.MethodLocator首先对缺陷报告和源代码方法体利用词向量(word2vec)和TF-IDF结合的方法进行向量表示;然后,根据源代码文件中方法体之间的相似度对方法体进行扩充;最后,通过对扩充后的方法体和缺陷报告计算其余弦距离并排序,来定位为修复软件缺陷所需做出变更的方法.在4个开源软件项目Argo UML、Ant、Maven和Kylin上的实验结果表明,MethodLocator方法优于现有的缺陷定位方法,它能够有效地将软件缺陷定位到源代码的方法级别上.

关键词：缺陷报告 MethodLocator 细粒度缺陷定位方法级别词向量表示

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A Tutorial to Approximately Invert the Sumudu Transform

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Applied Mathematics 2019年第11期10卷 1004-1028页

作者： Glen Atlas John K.-J. Li Adam Work Department of Anesthesiology Rutgers New Jersey Medical School Newark NJ USA Department of Biomedical Engineering Stevens Institute of Technology Hoboken NJ USA Department of Biomedical Engineering Rutgers University Piscataway NJ USA

Unlike the traditional Laplace transform, the Sumudu transform of a function, when approximated as a power series, may be readily inverted using factorial-based coefficient diminution. This technique offers straightforward computational advantages for approximate range-limited numerical solutions of certain ordinary, mixed, and partial linear differential and integro-differential equations. Furthermore, discrete convolution (the Cauchy product), may also be utilized to assist in this approximate inversion method of the Sumudu transform. Illustrative examples are provided which elucidate both the applicability and limitations of this method.

关键词： Sumudu Transform Double Series Discrete Convolution Cauchy Product

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全球视角下对IT管理关键问题的实证研究

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科技管理研究 2013年第20期33卷 208-213页

作者：黄正伟黄会娟 LUFTMAN NJ 三峡大学经济与管理学院湖北宜昌443002 stevens University of Science & technology USA

在与多位国外学者共同参与一项国际性调研的过程中,通过对各国IT主管的调研,得出各区域对IT管理的关键问题和应用技术的关注和理解程度,并由此得出不同地区的IT发展趋势。显然,在全球互联的环境下,IT发展所呈现出的地域特色与一些显著... 详细信息

在与多位国外学者共同参与一项国际性调研的过程中,通过对各国IT主管的调研,得出各区域对IT管理的关键问题和应用技术的关注和理解程度,并由此得出不同地区的IT发展趋势。显然,在全球互联的环境下,IT发展所呈现出的地域特色与一些显著的区域因素和国际因素(如:管理重点、影响技术、组织观念等)有关,这对于IT领导人如何应对未来挑战具有重要意义。

关键词： IT趋势管理焦点尖端应用与技术

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Deep reinforcement learning based multi-level dynamic reconfiguration for urban distribution network:a cloud-edge collaboration architecture

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Global Energy Interconnection 2023年第1期6卷 1-14页

作者： Siyuan Jiang Hongjun Gao Xiaohui Wang Junyong Liu Kunyu Zuo College of Electrical Engineering Sichuan UniversityChengdu Sichuan 610065P.R.China China Electric Power Research Institute Haidian DistrictBeijing 100192P.R.China Electrical and Computer Engineering Department Stevens Institute of TechnologyHobokenNJ 07030USA

With the construction of the power Internet of Things(IoT),communication between smart devices in urban distribution networks has been gradually moving towards high speed,high compatibility,and low latency,which provides reliable support for reconfiguration optimization in urban distribution ***,this study proposed a deep reinforcement learning based multi-level dynamic reconfiguration method for urban distribution networks in a cloud-edge collaboration architecture to obtain a real-time optimal multi-level dynamic reconfiguration ***,the multi-level dynamic reconfiguration method was discussed,which included feeder-,transformer-,and ***,the multi-agent system was combined with the cloud-edge collaboration architecture to build a deep reinforcement learning model for multi-level dynamic reconfiguration in an urban distribution *** cloud-edge collaboration architecture can effectively support the multi-agent system to conduct“centralized training and decentralized execution”operation modes and improve the learning efficiency of the ***,for a multi-agent system,this study adopted a combination of offline and online learning to endow the model with the ability to realize automatic optimization and updation of the *** the offline learning phase,a Q-learning-based multi-agent conservative Q-learning(MACQL)algorithm was proposed to stabilize the learning results and reduce the risk of the next online learning *** the online learning phase,a multi-agent deep deterministic policy gradient(MADDPG)algorithm based on policy gradients was proposed to explore the action space and update the experience ***,the effectiveness of the proposed method was verified through a simulation analysis of a real-world 445-node system.

关键词： Cloud-edge collaboration architecture Multi-agent deep reinforcement learning Multi-level dynamic reconfiguration Offline learning Online learning

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Implementing a topological quantum model using a cavity lattice

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Science China(Physics,Mechanics & Astronomy) 2012年第9期55卷 1549-1556页

作者： XIANG ZeLiang YU Ting ZHANG WenXian HU XueDong YOU JianQiang Department of Physics and State Key Laboratory of Surface Physics Fudan UniversityShanghai 200433China Key Laboratory of Micro and Nano Photonic Structures(Ministry of Education) Fudan UniversityShanghai 200433China Department of Physics and Engineering Physics Stevens Institute of TechnologyHobokenNew Jersey 07030-5991USA Department of Physics Wuhan UniversityWuhan 430072China Department of Physics University at Buffalo-SUNYBuffaloNew York 14260-1500USA Beijing Computational Science Research Center Beijing 100084China

Kitaev model has both Abelian and non-Abelian anyonic excitations. It can act as a starting point for topological quantum compu- tation. However, this model Hamiltonian is difficult to implement in natural condensed matter systems. Here we propose a quantum simulation scheme by constructing the Kitaev model Hamiltonian in a lattice of coupled cavities with embedded A-type three-level atoms. In this scheme, several parameters are tunable, for example, via external laser fields. Importantly, our scheme is based on currently existing technologies and it provides a feasible way of realizing the Kitaev model to explore topological excitations.

关键词： quantum simulation topological quantum model cavity electrodynamics

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