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4th IEEE International Conference on Data Science in Cyberspace, DSC 2019

作者： Xu, Libo Qiao, Lin Zhao, Feng Yang, Bo Wang, Qiong Ding, Ping Li, Lei State Grid Liaoning Electric Power Co. Ltd Shenyang Liaoning110005 China Anhui Jiyuan Software Co. Ltd Heifei Anhui230000 China State Grid Gansu Electric Power Co. Ltd Lanzhou Gansu730000 China School of Computer Science and Information Engineering Hefei University of Technology Hefei Anhui230601 China

ISBN: (纸本)9781728145280

In the era of information explosion, data collection and analysis have become more and more important, and association rule mining has become an important research area of the data mining field. As a classic association rule algorithm, Apriori often falls into the problem of frequently scanning the database and generating a large number of candidate sets. Aiming at these problems, an improved Apriori algorithm MD-Apriori based on the idea of equalization is proposed, which adopts the vertical data structure to mine frequent items and then the proposed approach is applied to mining frequent items of massive alarm information. Experimental results show that the proposed algorithm is significantly superior to the current association rule mining algorithms. © 2019 IEEE.

关键词： Association rules

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Wide Bandgap Devices in Electric Vehicle Converters: A Performance Survey

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Canadian Journal of Electrical and Computer engineering 2018年第1期41卷 45-54页

作者： Abdelrahman, Ahmed S. Erdem, Zekiye Attia, Yosra Youssef, Mohamed Z. Power Electronics and Drives Applications Laboratory Department of Electrical Computer and Software Engineering School of Engineering and Applied Science University of Ontario Institute of Technology OshawaONL1H 1K7 Canada

This paper introduces a unique quantified study about using low-losses fast-switching wide bandgap (WBG) devices, i.e., gallium nitride (GaN) and silicon carbide (SiC), over traditional Silicon (Si) devices in the switching of dc/dc converters, focusing on electric vehicles' (EVs) machine drive and battery charger. A detailed model of the power train of a Nissan Leaf was developed in PSIM software, with WBG semiconductors' capability. The model was simulated one time using GaN semiconductors and another time using SiC devices. Simulation results are quantified and a comparison between different semiconductors in terms of total losses and efficiency is presented. The developed PSIM model can also be extended to other EVs like Chevy Volt. A proof of concept prototype for a Nissan Leaf dc/dc converter was built in the laboratory and results were collected. Componentwise experimental results are presented and their correlation with simulation findings is demonstrated. In addition, experimental results of the overall power train test bench are found to be matched with the simulation results on a system level as well. © 2003-2010 IEEE Canada.

关键词： Silicon carbide

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Full-Blind Delegating Private Quantum Computation

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Computers, Materials & Continua 2018年第8期56卷 211-223页

作者： Wenjie Liu Zhenyu Chen Jinsuo Liu Zhaofeng Su Lianhua Chi Jiangsu Engineering Center of Network Monitoring Nanjing University of Information Science&TechnologyNanjing210044China School of Computer and Software Nanjing University of Information Science and TechnologyNanjing210044China State Grid Electric Power Research Institute NARI Group CorporationNanjing210003China Centre for Quantum Software and Information Faculty of Engineering and Information TechnologyUniversity of Technology SydneyNSW2007Australia Department of Computer Science and Information Technology La Trobe UniversityVIC3086Australia

The delegating private quantum computation(DQC)protocol with the universal quantum gate set{X,Z,H,P,R,CNOT}was firstly proposed by Broadbent et al.[Broadbent(2015)],and then Tan et al.[Tan and Zhou(2017)]tried to put forward a half-blind DQC protocol(HDQC)with another universal set{H,P,CNOT,T}.However,the decryption circuit of Toffoli gate(i.e.T)is a little redundant,and Tan et al.’s protocol[Tan and Zhou(2017)]exists the information *** addition,both of these two protocols just focus on the blindness of data(*** client’s input and output),but do not consider the blindness of computation(*** delegated quantum operation).For solving these problems,we propose a full-blind DQC protocol(FDQC)with quantum gate set{H,P,CNOT,T},where the desirable delegated quantum operation,one of{H,P,CNOT,T},is replaced by a fixed sequence(H,P,CZ,CNOT,T)to make the computation blind,and the decryption circuit of Toffoli gate is also *** shows that our protocol can not only correctly perform any delegated quantum computation,but also holds the characteristics of data blindness and computation blindness.

关键词： Delegating private quantum computation universal quantum gate set full-blind Toffoli gate circuit optimization

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UO2/BeO interfacial thermal resistance and its effect on fuel thermal conductivity

arXiv

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arXiv 2020年

作者： Zhu, Xueyan Gao, Rui Gong, Hengfeng Liu, Tong De-Ye Lin Song, Haifeng CAEP Software Center for High Performance Numerical Simulation Beijing100088 China Institute of Applied Physics and Computational Mathematics Beijing100088 China Institute of Materials China Academy of Engineering Physics JiangyouSichuan621908 China China Nuclear Power Technology Research Institute Shenzhen518031 China

UO2/BeO interfacial thermal resistance (ITR) is calculated by diffuse mismatch model (DMM) and the effects of ITR on UO2-BeO thermal conductivity are investigated. ITR predicted by DMM is on the order of 10-9 m2K/W. Using this ITR, UO2-BeO thermal conductivities are calculated by theoretical models and compared with experimental data. The results of this comparison indicate that DMM prediction is applicable to the interface between UO2 and dispersed BeO, while not applicable to the interface between UO2 and continuous BeO. If the thermal conductivity of UO2 containing continuous BeO was to be in agreement with experimental data, its ITR should be on the order of 10-6 ̶ 10-5 m2K/W. Therefore, the vibrational mismatch between UO2 and BeO considered by DMM is the major mechanism for attenuating the heat flux through UO2/dispersed-BeO interface, but not for UO2/continuousBeO interface. Furthermore, it is found that the presence of ITR leads to the dependence of the thermal conductivity of UO2 containing dispersed BeO on BeO size. With the decrease in BeO size, UO2-BeO thermal conductivity decreases. When BeO size is smaller than a critical value, UO2-BeO thermal conductivity becomes even smaller than UO2 thermal conductivity. For UO2 containing continuous BeO, the thermal conductivity decreases with the decrease in the size of UO2 granule surrounded by BeO, but not necessarily smaller than UO2 thermal conductivity. Under a critical temperature, UO2-BeO thermal conductivity is always larger than UO2 thermal conductivity. Above the critical temperature, UO2-BeO thermal conductivity is larger than UO2 thermal conductivity only when UO2 granule size is large enough. The conditions for achieving the targeted enhancement of UO2 thermal conductivity by doping with BeO are derived. These conditions can be used to design and optimize the distribution, content, size of BeO, and the size of UO2 granule. Copyright © 2020, The Authors. All rights reserved.

关键词： Uranium dioxide

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A DNA Computing Model for the Graph Vertex Coloring Problem Based on a Probe Graph

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engineering 2018年第1期4卷 61-77页

作者： Jin xu Xiaoli Qiang Kai Zhang Cheng Zhang Jing Yang Key Laboratory of High Confidence Software Technologies of Ministry of Education Institute of Software School of Electronics Engineering and Computer SciencePeking University Beijing 100871 China Institute of Novel Computer Science and Intelligent Software Guangzhou University Guangzhou 510006 China School of Computer Science Wuhan University of Science and Technology Wuhan 430081 China School of Control and Computer Engineering North China Electric Power University Beijing 102206 China

The biggest bottleneck in DNA computing is exponential explosion, in which the DNA molecules used as data in information processing grow exponentially with an increase of problem size. To overcome this bottleneck and improve the processing speed, we propose a DNA computing model to solve the graph vertex coloring problem. The main points of the model are as follows： The exponential explosion prob- lem is solved by dividing subgraphs, reducing the vertex colors without losing the solutions, and ordering the vertices in subgraphs; and the bio-operation times are reduced considerably by a designed parallel polymerase chain reaction （PCR） technology that dramatically improves the processing speed. In this arti- cle, a 3-colorable graph with 61 vertices is used to illustrate the capability of the DNA computing model. The experiment showed that not only are all the solutions of the graph found, but also more than 99% of false solutions are deleted when the initial solution space is constructed. The powerful computational capability of the model was based on specific reactions among the large number of nanoscale oligonu- cleotide strands. All these tiny strands are operated by DNA self-assembly and parallel PCR. After thou- sands of accurate PCR operations, the solutions were found by recognizing, splicing, and assembling. We also prove that the searching capability of this model is up to 0（3^59）. By means of an exhaustive search, it would take more than 896 000 years for an electronic computer （5 x 10^14 s-1） to achieve this enormous task. This searching capability is the largest among both the electronic and non-electronic computers that have been developed since the DNA computing model was proposed by Adleman＇s research group in 2002 （with a searching capability of 0（2^20））.

关键词： DNA computing Graph vertex coloring problem Polymerase chain reaction

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A Spatially Programmable DNA Nanorobot Arm to Modulate Anisotropic Gold Nanoparticle Assembly by Enzymatic Excision

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Angewandte Chemie 2023年第43期135卷

作者： Prof. Jing Yang Yuan Liang Xiang Li Yongpeng Zhang Prof. Long Qian Prof. Yonggang Ke Prof. Cheng Zhang School of Computer Science Key Lab of High Confidence Software Technologies Peking University Beijing 100871 China School of Control and Computer Engineering North China Electric Power University Beijing 102206 China Center for Quantitative Biology Peking University Beijing 100871 China Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory University Emory University School of Medicine Atlanta GA 30322 USA Department of Chemistry Emory University Atlanta GA 30322 USA

Programmable assembly of gold nanoparticle superstructures with precise spatial arrangement has drawn much attention for their unique characteristics in plasmonics and biomedicine. Bio-inspired methods have already provided programmable, molecular approaches to direct AuNP assemblies using biopolymers. The existing methods, however, predominantly use DNA as scaffolds to directly guide the AuNP interactions to produce intended superstructures. New paradigms for regulating AuNP assembly will greatly enrich the toolbox for DNA-directed AuNP manipulation and fabrication. Here, we developed a strategy of using a spatially programmable enzymatic nanorobot arm to modulate anisotropic DNA surface modifications and assembly of AuNPs. Through spatial controls of the proximity of the reactants, the locations of the modifications were precisely regulated. We demonstrated the control of the modifications on a single 15 nm AuNP, as well as on a rectangular DNA origami platform, to direct unique anisotropic AuNP assemblies. This method adds an alternative enzymatic manipulation to DNA-directed AuNP superstructure assembly.

关键词： AuNPs Assembly DNA Origami Enzymatic Excision Reactions Molecular Spatial Programmability Nanorobot

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An investigation into Parametric Modelling and FDM based Rapid Prototyping of Lumbar Spine

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IOP Conference Series: Materials Science and engineering 2021年第1期1168卷

作者： H Manikandan S Anjani Kumar Ojha Assistant Professor Department of Mechanical Engineering CMR Institute of Technology Bengaluru 560037 Karnataka India Senior Software Engineer PLM/CAD GE Power Systems India Pvt Ltd Sanand Ahmedabad 382170

Low back pain is the acute problem faced by workforce in the world today. Four out of five adults experience significant low back pain sometimes during their life. Mostly, low back pain problem can only be solved by operations. Each time doctors carrying out operations need to study the patient spine. The objective of the present work is to generate parametric model of lumbar spine using event driven programming approach of Visual Basic 6.0 and CATIA V5 R10. In parametric modelling, the features are parameterized by giving them meaningful labels and relationships between parameters in the entire model rather than giving only fixed numeric values. The output of the developed model is compared with the specimen samples of lumbar spine. Additive manufacturing using FDM (Fused Deposition Modelling) is used for 3D printing the spine model. Thus, the present work will give an insight into additive manufacturing of patient specific model and analyze the outcome before the clinical procedures.

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A Novel Time-aware Frame Adjustment Strategy for RFID Anti-collision

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Computers, Materials & Continua 2018年第11期57卷 195-204页

作者： Haipeng Chen Kexiong Liu Chunyang Ma Yu Han Jian Su Department of Electrical Engineering Northeast Electric Power UniversityJilin132012China School of Technology Beijing Forestry UniversityBeijing100083China Department of Electro-Optics and Photonics University of DaytonDaytonOH 45469USA School of Information and Communication Engineering University of Electronic Science and TechnologyChengdu611731China School of Computer and Software Nanjing University of Information Science and TechnologyNanjing210044China

Recently,object identification with radio frequency identification(RFID)technology is becoming increasingly *** time is a key performance metric to evaluate the RFID *** present paper analyzes the deficiencies of the state-of-the-arts algorithms and proposes a novel sub-frame-based algorithm with adaptive frame breaking policy to lower the tag identification time for EPC global C1 Gen2 UHF RFID *** the observation of slot statistics in a sub-frame,the reader estimates the tag quantity and efficiently calculates an optimal frame size to fit the unread *** when the expected average identification time in the calculated frame size is less than that in the previous frame size,the reader starts the new ***,the estimation of the proposed algorithm is implemented by the look-up tables,which allows dramatically reduction in the computational *** results show noticeable throughput and time efficiency improvements of the proposed solution over the existing approaches.

关键词： Radio frequency identification anti-collision alpha time efficiency

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Correction to: Numerical simulation of the effect of chimney configuration on the performance of a solar chimney power plant

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Journal of Thermal Analysis and Calorimetry 2021年第3期147卷 2565-2565页

作者： Arzpeyma, Mazdak Mekhilef, Saad Newaz, Kazi Md. Salim Horan, Ben Seyedmahmoudian, Mehdi Akram, Naveed Stojcevski, Alex Alnaimat, Fadi Mathew, Bobby Department of Mechanical Engineering Faculty of Engineering University of Malaya Kuala Lumpur Malaysia Power Electronics and Renewable Energy Research Laboratory (PEARL) Department of Electrical Engineering Faculty of Engineering University of Malaya Kuala Lumpur Malaysia School of Software and Electrical Engineering Faculty of Science Engineering and Technology Swinburne University of Technology Melbourne Australia School of Engineering Deakin University Geelong Australia Department of Mechanical Engineering Mirpur University of Science and Technology (MUST) Mirpur Pakistan Department of Mechanical Engineering The United Arab Emirate University Al Ain United Arab Emirates

A correction to this paper has been published: https://***/10.1007/s10973-021-10567-y

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Integrated Labs for Electrical engineering Courses in Competence Based Learning Environment - Practical Experience

Integrated Labs for Electrical Engineering Courses in Compet...

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power Quality and Supply Reliability Conference, PQ

作者： Martin Jaanus Kadri Umbleja Andres Udal Kaiser Pärnamets Department of Electrical Power Engineering and Mechatronics Tallinn University of Technology Tallinn Estonia School of Science and Engineering Tokyo Denki University Saitama Japan Department of Software Science Tallinn University of Technology Tallinn Estonia Thomas Johann Seebeck Department of Electronics Tallinn University of Technology Tallinn Estonia

Paper discusses implementation of the newest version of interactive *** learning system with mobile home laboratories in Department of Electrical power engineering and Mechatronics of Tallinn University of technology. The concept of mobile home laboratories via lending Home Laboratory Kits to students has been an essential part of our web-based learning system since 2005. In paper we discuss the basic principles of the construction of the interactive learning system. The presented fresh data for the study year 2018 confirm the very positive impact of the interactive learning system - student activity during the semester has become significantly even.

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