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CSPoweR-Watch: A Cyber-Resilient Residential Power Management System

CSPoweR-Watch: A Cyber-Resilient Residential Power Managemen...

IEEE/ACM Int'l Conference on & Int'l Conference on Cyber, Physical and Social Computing (CPSCom) Green Computing and Communications (GreenCom)

作者： Faraz Naseem Leonardo Babun Cengiz Kaygusuz S.J. Moquin Chris Farnell Alan Mantooth A. Selcuk Uluagac Department of Electrical and Computer Engineering Florida International University FL USA Mixed Signal Computer Aided Design Lab University of Arkansas

Modern Energy Management Systems (EMS) are becoming increasingly complex in order to address the urgent issue of global energy consumption. These systems retrieve vital information from various Internet-connected resources in a smart grid to function effectively. However, relying on such resources results in them being susceptible to cyber attacks. Malicious actors can exploit the interconnections between the resources to perform nefarious tasks such as modifying critical firmware, sending bogus sensor data, or stealing sensitive information. To address this issue, we propose a novel framework that integrates PowerWatch, a solution that detects compromised devices in the smart grid with Cyber-secure Power Router (CSPR), a smart energy management system. The goal is to ascertain whether or not such a device has operated maliciously. To achieve this, PowerWatch utilizes a machine learning model that analyzes information from system and library call lists extracted from CSPR in order to detect malicious activity in the EMS. To test the efficacy of our framework, a number of unique attack scenarios were performed on a realistic testbed that comprises functional versions of CSPR and PowerWatch to monitor the electrical environment for suspicious activity. Our performance evaluation investigates the effectiveness of this first-of-its-kind merger and provides insight into the feasibility of developing future cybersecure EMS. The results of our experimental procedures yielded 100% accuracy for each of the attack scenarios. Finally, our implementation demonstrates that the integration of PowerWatch and CSPR is effective and yields minimal overhead to the EMS.

关键词： Hardware Energy management Smart grids Performance evaluation computer crime Power electronics Energy resources

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Improving Chaotic Image Encryption Using Maps with Small Lyapunov Exponents

Improving Chaotic Image Encryption Using Maps with Small Lya...

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Moscow Workshop on Electronic and Networking Technologies (MWENT)

作者： Thiago A. Santos Eduardo P. Magalhães Nayara P. Basílio Erivelton G. Nepomuceno Timur I. Karimov Denis N. Butusov Electrical Engineering Department Federal University of São João del-Rei São João del-Rei Brazil Computer Aided Design Department Petersburg Electrotechnical University Saint-Petersburg Russia Youth Research Institute Petersburg Electrotechnical University Saint-Petersburg Russia

ISBN: (数字)9781728125725

ISBN: (纸本)9781728125732

Chaos-based encryption is one of the promising cryptography techniques that can be used. Although chaos-based encryption provides excellent security, the finite precision of number representation in computers affects decryption accuracy negatively. In this paper, a way to mitigate some problems regarding finite precision is analyzed. We show that the use of maps with small Lyapunov exponents can improve the performance of chaotic encryption scheme, making it suitable for image encryption.

关键词： Encryption Chaos Entropy Correlation coefficient Mathematical model Standards

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Cross-domain intelligent cooperative spectrum sensing algorithm based on Federated Learning and Swin-Transformer neural network

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engineering Applications of Artificial Intelligence 2025年 157卷

作者： Lingwei Xu Zhihe Gao Yufang Li T. Aaron Gulliver Department of Information Science and Technology Qingdao University of Science & Technology Qingdao 266061 China Key Laboratory of Industrial Internet of Things & Networked Control Ministry of Education Chongqing University of Posts and Telecommunications Chongqing 400065 China Hubei Key Laboratory of Power System Design and Test for Electrical Vehicle Hubei University of Arts and Science Xiangyang 441053 Hubei China Guangxi Key Laboratory of Hybrid Computation and IC Design Analysis(Guangxi Minzu University) Nanning 530006 China Department of Electrical and Computer Engineering University of Victoria Victoria BC V8W 2Y2 Canada

The deployment of 6th Generation (6G) mobile networks will bring revolutionary changes to organizations and users through higher speeds, lower latency, and more intelligent network management. This will require more efficient spectrum sharing to improve network performance. Cognitive Radio (CR) can be employed to help achieve this goal. However, data collection at the fusion center for cooperative spectrum sensing (CSS) creates a risk of sensing user (SU) data leakage. In this paper, an intelligent CSS algorithm for mobile communication is proposed based on Federated Learning with a Swin-Transformer. First, to achieve the cross-domain process, a Continuous Wavelet Transform (CWT) is used with the normalized time series data to obtain a time-frequency spectrum map with joint time-frequency features. Second, Federated Learning is employed to realize distributed CSS to reduce sensing overhead, improve the security of sensing data, and eliminate the SU data isolation with traditional distributed CSS. Then, a new Swin-Transformer spectrum sensing is proposed for fusion learning of the time-frequency spectrum map. The fusion of Federated Learning and Swin-Transformer neural network provides cooperation with multiple SUs to achieve efficient spectrum sensing using the K -rank fusion criterion. Compared with the Convolutional Neural Network (CNN), ViT-Transformer, Graph Neural Network (GNN) and EfficientNet algorithms, the detection probability of the proposed algorithm has increased by 45 %, and the false alarm probability has decreased by 13 %.

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Predicting the Use of Solar Photovoltaic Panels for Generating Electricity in the Area with Air Pollution

Predicting the Use of Solar Photovoltaic Panels for Generati...

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International Conference on Perspective Technologies and Methods in MEMS design (MEMSTECH)

作者： Krzysztof Pytel Mykhaylo Melnyk Wiktor Hudy Franciszek Kurdziel Adam Kalwar Stanislaw Gumula Department of Power Systems and Environmental Protection Facilities AGH University of Science and Technology Krakow Poland Department of Computer Aided Design Systems Lviv Polytechnic National University Lviv Ukraine Institute of Technology Pedagogical University of Cracow Krakow Poland Department of Thermal Engineering and Fluid Flow AGH University of Science and Technology Krakow Poland

ISBN: (数字)9781728171807

ISBN: (纸本)9781728171814

This publication presents the application of simulation software to evaluation on the potential of for generating electricity in the area with air. It is shown the valuation of the effect of air quality on the opportunity of renewable energy source using, as well. Strong effects of poor air quality can be detected in town where human activities make pollution in various forms. The aim of the analysis was to examine the relationship between the amount of solar radiation reaching solar panels and air pollution from nature and human activities in the chosen location. Dependence between the experimental data and the amount theoretically calculated amount of energy were conducted by selected statistical correlation tests. The Matlab / Simulink software was used for calculations.

关键词： modelling solar energy application of informatics Air contamination Solar Energy Modeling Human Activities Air quality Solar collectors Renewable energy renewable energy sources Solar PV emulation program Electricity energy capacity cost accounting Device Panel solar radiation

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Layerless Additive Manufacturing of Metal Alloy Lattices Using Immiscible-Interface Assisted Direct Metal Drawing

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Procedia Manufacturing 2019年 34卷 647-654页

作者： Li He Fan Fei Wenbo Wang Xuan Song Department of Industrial and Systems Engineering University of Iowa Iowa City IA 52242 USA Center for Computer Aided Design University of Iowa Iowa City IA 52242 USA

State-of-the-art metal alloy additive manufacturing (AM) techniques construct a three-dimensional structure through sintering or melting dry metal powders in a layer-by-layer fashion, which typically results in several AM-specific issues in the final structure, such as staircase effect, residual stress and highly-orientated microstructures. In this paper, we present a new extrusion-based metal AM process, named Immiscible-interface assisted Direct Metal Drawing (II-DMD), which fabricates metal alloy structures, in particular lattice structures, in a layerless manner. In the II-DMD process, metal lattice structures are fabricated by continuously extruding a metal colloidal suspension within a second immiscible matrix colloidal suspension. The shape of the metal colloidal suspension is stabilized due to the presence of an immiscible interface between the two colloidal suspension systems. Dense metal lattice structures can be achieved via post-consolidation of the self-stabilized metal-matrix systems, including liquid-phase drying and metal-phase sintering. The II-DMD process is presented and the immiscible-interface-assisted self-stabilization mechanism is studied. The post-consolidation processes are discussed. Several test cases were fabricated and characterized.

关键词： immiscible interface direct metal drawing colloidal suspension self-stabilization sintering

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Acquisition of Signals in a Wind Tunnel Using the Dasylab Software Package

Acquisition of Signals in a Wind Tunnel Using the Dasylab So...

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International Conference on Perspective Technologies and Methods in MEMS design (MEMSTECH)

作者： Krzysztof Pytel Zygmunt Szczerba Igor Farmaha Franciszek Kurdziel Adam Kalwar Stanislaw Gumula Department of Power Systems and Environmental Protection Facilities AGH University of Science and Technology Krakow Poland Department of Thermodynamics and Fluid Mechanics Rzeszow University of Technology Rzeszow Poland Department of Computer Aided Design Systems Lviv Polytechnic National University Lviv Ukraine Department of Thermal Engineering and Fluid Flow AGH University of Science and Technology Krakow Poland

ISBN: (数字)9781728171807

ISBN: (纸本)9781728171814

This publication presents the use of the acquisition of signals in a wind tunnel using the DasyLab system to assess the suitability of selected airfoils for the power industry and is a presentation of their aerodynamic characteristics. Research experiments were carried out using the MCCOMPUTING USB 1608G modular measuring system. The publication is a description of the air profile using a prepared measurement system that allows obtaining the characteristics: polar profile as well as drag coefficient and lift coefficient depending on the angle of attack. The influence of wing mechanization on the characteristics describing the profile is also presented. The comparison of the profile analysed is presented publication and the profiles were compared based on the polar profiles, drag and lift coefficients as a function of the angle of attack of the profile. The DasyLab software was used for measurements and analysis.

关键词： Automotive components Aerodynamics Drag Force Strain measurement Blades Wind tunnels

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Modelling Features of Switching Device Errors for 2-out-of-3 and Sliding Redundancy Systems Based on k-Terminal Dynamic Fault Tree

Modelling Features of Switching Device Errors for 2-out-of-3...

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International Conference on CAD Systems in Microelectronics (CADSM)

作者： Mykhaylo Lobur Tetyana Stefanovych Serhiy Shcherbovskykh Department of Computer Aided Design Lviv Polytechnic National University Lviv Ukraine Department of Mechanical Engineering Lviv Polytechnic National University Lviv Ukraine

The k-terminal dynamic fault trees for 2-out-of-3 system and sliding redundancy system are formed. These models can adequately accounting switching device errors. Reliability characteristics are calculated based on Ma... 详细信息

关键词： Switches Redundancy Fault trees Logic gates Markov processes

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Optimal non-uniform parametrization for Fourier descriptor based path synthesis of four bar mechanisms

Optimal non-uniform parametrization for Fourier descriptor b...

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ASME 2018 International design engineering Technical Conferences and computers and Information in engineering Conference, IDETC/CIE 2018

作者： Sharma, Shashank Purwar, Anurag Jeffrey Ge, Q. Computer-Aided Design and Innovation Lab Department of Mechanical Engineering Stony Brook University Stony Brook New York11794-2300 United States

ISBN: (纸本)9780791851807

Fourier descriptor based path synthesis algorithms rely on harmonic decomposition of four-bar loop closure equation to split the design space into smaller subsets. The core of the methodology depends on calculation and fitting of Fourier descriptors. However, a uniform time parametrization is assumed in existing literature. This paper aims to explore the use of nonuniform time parametrization of input data and calculation of an optimal parametrization. Additionally, design-centric constraints have been proposed to give user enhanced control over coupler speed. As a result, this work improves the existing algorithm tremendously. Copyright © 2018 ASME.

关键词： Mechanisms

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design of an Infological Model for Prediction of Problems during Drilling Using Machine Learning and Systems Analysis

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IOP Conference Series: Earth and Environmental Science 2022年第4期988卷

作者： A L Zolkin V D Munister R V Faizullin N N Smoktal Ph.D. in Engineering Science Senior Lecturer of Computer and Information Sciences Department of the Povolzhskiy State University of Telecommunications and Informatics Department of Mathematical Methods and Computer-Aided Design Private educational institution 'Donetsk Academy of Transport' Department of Enterprise Economics State educational institution of higher professional education 'Donetsk National Technical University' Associate Professor of the Department of Information Technologies in Public Administration Institute of Management Technologies MIREA — Russian technological university Teacher at the Department of 'Renewable Energy Sources and Electrical Systems and Networks' Sevastopol State University

The article deals with the actual problem of identification of probabilistic processes as a result of the operation of drilling rigs in the oil industry. The world experience of finding ways to solve optimal forecasting tools using machine learning is summarized. Mnemonic rule for the implementation of classification and ranking systems in the detection of feedbacks as probable indicators of complications of ongoing technological processes is implemented through the description of the formal model of the drilling process in form of a hidden Markov model. The results of evaluation of the developed mathematical apparatus in the form of predictive analytics and a cut of basic complications in the drilling process are presented. An infological diagram of the developed architectural solution of the analysis project is proposed. The results of the control algorithms formalization are given in conclusion. These results allow to ensure the effective procees modes of equipment operation and make it possible to save electricity and water.

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Formation of high-aspect-ratio nanocavity in LiF crystal using a femtosecond of x-ray FEL pulse

arXiv

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arXiv 2024年

作者： Makarov, Sergey S. Grigoryev, Sergey A. Zhakhovsky, Vasily V. Chuprov, Petr Pikuz, Tatiana A. Inogamov, Nail A. Khokhlov, Victor V. Petrov, Yuri V. Perov, Eugene Shepelev, Vadim Shobu, Takehisa Tominaga, Aki Rapp, Ludovic Rode, Andrei V. Juodkazis, Saulius Makita, Mikako Nakatsutsumi, Motoaki Preston, Thomas R. Appel, Karen Konopkova, Zuzana Cerantola, Valerio Brambrink, Erik Schwinkendorf, Jan-Patrick Mohacsi, István Vozda, Vojtech Hajkova, Vera Burian, Tomas Chalupsky, Jaromir Juha, Libor Ozaki, Norimasa Kodama, Ryosuke Zastrau, Ulf Pikuz, Sergey A. Joint Institute for High Temperatures Russian Academy of Sciences 13/2 Izhorskaya st. Moscow125412 Russia Institute for Computer Aided Design Russian Academy of Sciences Moscow123056 Russia Institute for Open and Transdisciplinary Research Initiatives Osaka University Suita Osaka565-0871 Japan Landau Institute for Theoretical Physics Russian Academy of Sciences 1-A Akademika Semenova av. Chernogolovka Region Moscow142432 Russia The facility is Material Science Research Center Japan Atomic Energy Agency Sayo Hyogo 679-5148 Japan Laser Physics Centre Department of Quantum Science and Technology Research School of Physics Australian National University CanberraACT2600 Australia School of Science Swinburne University of Technology HawthornVIC3122 Australia School of Materials and Chemical Technology Tokyo Institute of Technology Tokyo152-8550 Japan European XFEL Holzkoppel 4 Hamburg22869 Germany Università degli Studi di Milano Bicocca Piazza della Scienza 4 Milano20126 Italy Department of Radiation and Chemical Physics Institute of Physics Czech Academy of Sciences Na Slovance 1999/2 Prague 8182 00 Czech Republic Graduate School of Engineering Osaka University Suita Osaka565-0871 Japan Institute of Laser Engineering Osaka University Suita Osaka565-0871 Japan HB11 Energy Holdings FreshwaterNSW2095 Australia

Sub-picosecond optical laser processing of metals is actively utilized for modification of a heated surface layer. But for deeper modification of different materials a laser in the hard x-ray range is required. Here, we demonstrate that a single 9-keV x-ray pulse from a free-electron laser can form a µm-diameter cylindrical cavity with length of ~1 mm in LiF surrounded by shock-transformed material. The plasma-generated shock wave with TPa-level pressure results in damage, melting and polymorphic transformations of any material, including transparent and non-transparent to conventional optical lasers. Moreover, cylindrical shocks can be utilized to obtain a considerable amount of exotic high-pressure polymorphs. Pressure wave propagation in LiF, radial material flow, formation of cracks and voids are analyzed via continuum and atomistic simulations revealing a sequence of processes leading to the final structure with the long cavity. Similar results can be produced with semiconductors and ceramics, which opens a new pathway for development of laser material processing with hard x-ray pulses. Copyright © 2024, The Authors. All rights reserved.

关键词： Laser materials processing

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