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Glucose Oxidase Sensing: 3D Macroporous Zinc Compound/Silicone Hybrid Foams for Amperometric Sensing of Glucose Oxidase (Global Challenges 2/2019)

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Global Challenges 2019年第2期3卷 1970021-1970021页

作者： Ye Wu Hao Fu Weiwei Xie Yingcheng Lin Orhan Kizilkaya Jian Xu Division of Electrical and Computer Engineering Louisiana State University Baton Rouge LA 70803 USA Department of Mechanical Engineering Mcgill University 817 Sherbrooke St. West Montreal Quebec H3A 0C3 Canada Department of Chemistry Louisiana State University Baton Rouge LA 70803 USA Key Laboratory of Dependable Service Computing in Cyber Physical Society (Chongqing University) of Ministry of Education Chongqing 400044 China College of Communication Engineering Chongqing University Chongqing 400044 China Center for Advanced Microstructures and Devices Louisiana State University 6980 Jefferson Hwy. Baton Rouge LA 70806 USA

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Vulnerability Analysis for Complex Networks under the Shortest Path-Attack Strategies

Vulnerability Analysis for Complex Networks under the Shorte...

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2016 International Conference on Communications, Information Management and Network Security (CIMNS2016)

作者： Yaohui Hao Jihong Han Qinghua Cheng Yongjin Hu Zhengzhou Institute of Information Science and technology State Key Laboratory of Mathematical Engineering and Advanced Computing

ISBN: (纸本)9781510830981

We proposed three shortest path-attack strategies and investigated the vulnerability of three complex model networks under these path-attack strategies. The experimental results indicate that the robustness of random network is the weakest, but small-world network is the strongest under the shortest pathattack strategies. We also obtain that the shortest path-attack strategies are more harmful than RPA(random augmenting approach) attack strategy. These findings supplement and extend the previous attack results and can thus help us to provide some insights into the design of more robust networks.

关键词： vulnerability complex network shortest path-attack degree betweeness

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Research on undergraduate thesis' s tutor allocation based on Dynamic Game Model of Incomplete Information

Research on undergraduate thesis' s tutor allocation based o...

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2016 3rd International Conference on Education,Management and computing Technology(ICEMCT 2016)

作者： Hengwei Zhang Zhengzhou Institute of Information Science and Technology State Key Laboratory of Mathematical Engineering and Advanced Computing

Fairness is the prerequisite to the undergraduate thesis' s tutor allocation, which means students have the priority for choosing tutors. Because of rich experience and authoritative discourse power, the senior tutors are usually the objects that students compete for. In the case of information asymmetry, resources of the scarce senior tutors may not be fully utilized, resulting in the decline of thesis quality. In this paper we analyze the efficiency of the existing undergraduate thesis' s tutor allocation by using signaling game model. Finally, the improved allocation is proposed, meanwhile some advices on prompting thesis quality are given.

关键词： Undergraduate Thesis Tutor Allocation Dynamic Game

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Tunable disorder and localization in the rare-earth nickelates

arXiv

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arXiv 2018年

作者： Wang, Changan Chang, Ching-Hao Huang, Angus Wang, Pei-Chun Wu, Ping-Chun Yang, Lin Xu, Chi Pandey, Parul Zeng, Min Böttger, Roman Jeng, Horng-Tay Zeng, Yu-Jia Helm, Manfred Chu, Ying-Hao Ganesh, R. Zhou, Shengqiang Helmholtz-Zentrum-Dresden-Rossendorf Bautzner Landstraße 400 Dresden01328 Germany Technische Universität Dresden Dresden01062 Germany Shenzhen Key Laboratory of Laser Engineering College of Optoelectronic Engineering Shenzhen University Shenzhen518060 China Leibniz-Institute for Solid State and Materials Research Helmholtzstraße 20 Dresden01069 Germany Department of Physics National Tsing Hua University Hsinchu30043 Taiwan Department of Materials Science and Engineering National Chiao Tung University Hsinchu Taiwan Institute for Advanced Materials Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials South China Normal University Guangzhou51006 China Institute of Physics Academia Sinica Taipei11529 Taiwan Center for Emergent Functional Matter Science National Chiao Tung University Hsinchu30010 Taiwan Institute of Mathematical Sciences HBNI C I T Campus Chennai600113 India

The rare-earth nickelates are a rich playground for transport properties, known to host non-Fermi liquid character, resistance saturation and metal-insulator transitions. We report a study of transport in LaNiO3 in the presence of tunable disorder induced by irradiation. While pristine LaNiO3 samples are metallic, highly irradiated samples show insulating behaviour at all temperatures. Using irradiation fluence as a tuning handle, we uncover an intermediate region hosting a metal-insulator transition. This transition falls within the Mott-Ioffe-Regel regime wherein the mean free path is comparable to lattice spacing. In the high temperature metallic regime, we find a transition from non-Fermi liquid to a Fermi-liquid-like character. On the insulating side of the metal-insulator transition, we find behaviour that is consistent with weak localization. This is reflected in magnetoresistance that scales with the square of the field and in resistivity. In the highly irradiated insulating samples, we find good agreement with variable range hopping, consistent with Anderson localization. We find qualitatively similar behaviour in thick PrNiO3 films as well. Our results demonstrate that ion irradiation can be used to tailor transport, serving as an excellent tool to study the physics of localization. Copyright © 2018, The Authors. All rights reserved.

关键词： Semiconductor insulator boundaries

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Battery Swapping Assignment for Electric Vehicles: A Bipartite Matching Approach

Battery Swapping Assignment for Electric Vehicles: A Biparti...

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IEEE Annual Conference on Decision and Control

作者： Pengcheng You John Z. F. Pang Minghua Chen Steven H. Low Youxian Sun State Key Laboratory of Industrial Control Technology Zhejiang University Hangzhou China Department of Computing and Mathematical Sciences California Institute of Technology Pasadena CA USA Department of Information Engineering The Chinese University of Hong Kong Hong Kong China

This paper formulates an optimal station assignment problem for electric vehicle (EV) battery swapping that takes into account both temporal and spatial couplings. The goal is to reduce the total EV cost and station congestion due to temporary shortage in supply of available batteries. We show that the problem is reducible to the minimum weight perfect bipartite matching problem. This leads to an efficient solution based on the Hungarian algorithm. Numerical results suggest that the proposed solution provides a significant improvement over a greedy heuristic that assigns nearest stations to EVs.

关键词： Batteries Couplings Optimization Public transportation state of charge Aggregates Electric vehicles

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Joint power and admission control based on channel distribution information: A novel two-timescale approach

arXiv

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arXiv 2017年

作者： Chen, Qitian Kang, Dong He, Yichu Chang, Tsung-Hui Liu, Ya-Feng School of Mathematical Sciences Peking University Beijing100871 China State Key Laboratory of Scientific and Engineering Computing Institute of Computational Mathematics and Scientific/Engineering Computing Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing100190 China School of Science and Engineering Chinese University of Hong Kong Shenzhen Research Institute of Big Data Shenzhen518172 China

In this letter, we consider the joint power and admission control (JPAC) problem by assuming that only the channel distribution information (CDI) is available. Under this assumption, we formulate a new chance (probabilistic) constrained JPAC problem, where the signal to interference plus noise ratio (SINR) outage probability of the supported links is enforced to be not greater than a prespecified tolerance. To efficiently deal with the chance SINR constraint, we employ the sample approximation method to convert them into finitely many linear constraints. Then, we propose a convex approximation based deflation algorithm for solving the sample approximation JPAC problem. Compared to the existing works, this letter proposes a novel two-timescale JPAC approach, where admission control is performed by the proposed deflation algorithm based on the CDI in a large timescale and transmission power is adapted instantly with fast fadings in a small timescale. The effectiveness of the proposed algorithm is illustrated by simulations. Copyright © 2017, The Authors. All rights reserved.

关键词： Signal interference

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Construction of One-Gray Weight Codes and Two-Gray Weight Codes over Z4+uZ4

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Journal of Systems Science & Complexity 2016年第5期29卷 1472-1484页

作者： SHI Minjia WANG Dandan GAO Jian WU Bo Key Laboratory of Intelligent Computing & Signal Processing Ministry of Education Anhui University Hefei 230039 China National Mobile Communications Research Laboratory Southeast University Nanjing 210096China School of Mathematical Sciences Anhui University Hefei 230601 China. School of Science Shandong University of Technology Zibo 255091 China State Key Laboratory of Information Security Institute of Information Engineering Chinese Academy of Sciences Bcijing 100093 China

This paper firstly gives some necessary conditions on one-Gray weight linear codes. And then we use these results to construct several classes of one-Gray weight linear codes over Z_4 +uZ_4(u^2=u) with type 16^(k_1)8^(k_2)8^(k_3)4^(k_4)4^(k_5)4^(k_6)2^(k_7)2^(k_8) based on a distance-preserving Gray map from(Z4 + u Z4)n to Z2n4. Secondly, the authors use the similar approach to do works on two-Gray(projective) weight linear codes. Finally, some examples are given to illustrate the construction methods.

关键词： Generator matrix Gray map linear code one-Gray weight code two-Gray weight code

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City-level geolocation algorithm of network entities based on landmark clustering

City-level geolocation algorithm of network entities based o...

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International Conference on advanced Communication Technology (ICACT)

作者： Guang Zhu Xiangyang Luo Fenlin Liu Fan Zhao State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou Science and Technology Institute Zhengzhou China

For the existing network entity geolocation algorithms based on the delay measurement are usually suffer from the inflation and jitter of the network delay, a new algorithm of city-level geolocation based on landmark clustering is proposed in this paper. According to the feature of the delays tend to be similar among the neighboring network entities generally, city-level network entities geolocation algorithm based on landmark clustering is given. In the proposed algorithm, the city-level landmarks are divided into several clusters based on the "delay similarity" principle to filters out the high-reliability landmarks for improving the precision of city-level geolocation algorithm, the minimal relative delay between cluster and target is calculated based on the minimal relative delay, and the region of this cluster is taken as the estimation of target's location. The rationality of the delay clustering, feasibility of the proposed algorithm, and experimental results show that the proposed algorithm reduces effectively the delay influence on the IP geolocation algorithms, and the geolocation accuracy is higher than the classic GeoPing algorithm.

关键词： Delays Geology Clustering algorithms IP networks Cities and towns Estimation Reliability

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IP city-level geolocation based on the PoP-level network topology analysis

IP city-level geolocation based on the PoP-level network top...

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International Conference on Information Communication and Management (ICICM)

作者： Siqi Liu Fenlin Liu Fan Zhao Lixiang Chai Xiangyang Luo State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou Science and Technology Institute Zhengzhou China

ISBN: (纸本)9781509034963

In view of that the reliability of existing typical IP city-level geolocation approaches are limited to the delay measurement accuracy, IP targets reachability and other factors, this paper proposed an IP city-level geolocation approach based on the PoP-level (Point of Presence) network analysis. First, the “low-high-low” distribution characteristics of the one-hop-delay among network nodes in different cities are revealed. The network connections in the IP targets' cities are obtained by partitioning the probe paths based on one-hop-delay. Secondly, the PoP-level network in these cities are analyzed by extracting closely connected network nodes, and PoP city-level location are determined by landmarks contained. Finally, the core routers in these PoPs are selected as the city core routers and used to achieve IP targets city-level geolocation. The experimental results on 4980 IP targets in Henan province of China show that: the average accuracy of the proposed approach is 97.2%, which is much higher than that of the existing typical city-level geolocation approaches based on IP databases or delay measurement. At the same time, some of the IP targets which are not reachable can also achieve a reliable city-level geolocation by this approach.

关键词： IP networks Geology Probes Urban areas Delays Network topology Databases

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An effective usage and access control scheme for preventing permission leak in a trusted execution environment 16

An effective usage and access control scheme for preventing ...

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6th International Conference on Communication and Network Security, ICCNS 2016

作者： Chang, Rui Jiang, Liehui Yin, Qing Ren, Lu Liu, Qingfeng State Key Laboratory of Mathematic Engineering and Advanced Computing Zhengzhou450001 China China National Digital Switching System Engineering Technological Research Center Zhengzhou450001 China

ISBN: (纸本)9781450347839

In the universal Android system, each application runs in its own sandbox, and the permission mechanism is used to enforce access control to the system APIs and applications. However, permission leak could happen when an application without certain permission illegally gain access to protected resources through other privileged applications. In order to address permission leak in a trusted execution environment, this paper designs security architecture which contains sandbox module, middleware module, usage and access control module, and proposes an effective usage and access control scheme that can prevent permission leak in a trusted execution environment. Security architecture based on the scheme has been implemented on an ARM-Android platform, and the evaluation of the proposed scheme demonstrates its effectiveness in mitigating permission leak vulnerabilities. © 2016 ACM.

关键词： Access control

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