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16th International Conference on Development and Application Systems, DAS 2022

作者： Ifrim, Visarion-Catalin Pop, Teodor University 'tefan cel Mare' of Suceava Faculty of Electrical Engineering and Computer Science Department of Electrical Engineering Suceava Romania

ISBN: (纸本)9781665481625

The increasing demand for energy and the greenhouse gas (GHG) emissions resulting from the use of conventional fuels are directing humanity towards renewable energy sources, in this case solar energy, and towards increasing investments in research and improvement of solar systems that produces both electricity and heat. For household consumers as well as for some industrial ones, the large volume of energy consumed is due to space heating, ventilation and drying. The availability of solar energy can contribute to reducing this consumption utilizing solar air heater systems. In the presence of solar energy, reducing the household energy consumption also depends on the thermal performance of these systems. Recent studies focus on improving these performances by modifying the components so that there is as much absorption of solar radiation as possible and as high a thermal transfer as possible between the absorption surface and the existing air flow through the system. The objective of this paper is to review different forms of the absorption plate and the different obstacles (roughness's) used by researchers to refine thermal performances of solar air heater systems. The role of obstacles is to create swirlers that favor heat transfer. The results presented briefly refer to thermal efficiency, thermo-hydraulic improvement factor and friction factor. The final remarks propose observations and proposals for further improvements to solar air heating domain. © 2022 IEEE.

关键词： Solar energy

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Reversible Data Hiding With Secret Encrypted Image Sharing and Adaptive Coding

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IEEE Internet of Things Journal 2025年第13期12卷 23933-23945页

作者： Fang, Guangtian Wang, Feng Zhao, Chenbin Qin, Chuan Chang, Ching-Chun Chang, Chin-Chen Fujian University of Technology College of Computer Science and Mathematics Fuzhou350118 China Fujian University of Technology College of Computer Science and Mathematics Key Laboratory of Big Data Mining and Applications Fuzhou350118 China Monash University Faculty of IT Department of Software Systems and Cybersecurity VIC3800 Australia Ministry of Education School of Cyber Science and Engineering Key Laboratory of Aerospace Information Security and Trusted Computing Wuhan430072 China University of Shanghai for Science and Technology School of Optical-Electrical and Computer Engineering Shanghai200093 China Feng Chia University Information and Communication Security Research Center Taichuang 40724 Taiwan Feng Chia University Department of Information Engineering and Computer Science Taichung40724 Taiwan

To ensure the security of image information and facilitate efficient management in the cloud, the utilization of reversible data hiding in encrypted images (RDHEI) has emerged as pivotal. However, most existing RDHEI schemes suffer from lower security and limited embedding capacity. To tackle these challenges, we propose a reversible data hiding with secret encrypted image sharing and adaptive coding scheme. Specifically, in the encryption phase, we introduce an improved secret sharing (SS) encryption method based on the chinese remainder theorem for polynomials (CRTP). This method not only improves the security of encrypted images but also vacates a larger room for embedding. In the embedding phase, we introduce an adaptive coding embedding approach using XOR preservation (XORP) and huffman coding, which provides high embedding capacity. Experimental results and security analysis demonstrate that our proposed encryption method achieves optimal values in security indicators for encrypted images, such as information entropy, histograms, NPCR and UACI. The proposed embedding method is superior to some state-of-the-art schemes in terms of embedding capacity. Furthermore, in datasets BOSSBase and BOWS2, the average embedding rates of the proposed embedding approach can reach 2.1745 bpp and 2.0656 bpp, respectively. © 2025 IEEE.

关键词： Cryptography Encryption Security Data mining Adaptive coding Correlation Cloud computing Polynomials Image coding Streaming media

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An Optimized Algorithm for Resource Allocation for D2D in Heterogeneous Networks

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computers, Materials & Continua 2022年第2期70卷 2923-2936页

作者： Abdul Kadir Hamid Fahd N.Al-Wesabi Nadhem Nemri Ammar Zahary Imran Khan Department of Electrical&Computer Engineering University of SharjahSharjahUnited Arab Emirates Department of Computer Science King Khalid UniversityMuhayel AseerKSA Faculty of Computer and IT Sana’a UniversitySanaaYemen Department of Information Systems King Khalid UniversityMayahel AseerKSA Department of Electrical Engineering University of Engineering and TechnologyPeshawarPaki

With the emergence of 5G mobile multimedia services,end users’demand for high-speed,low-latency mobile communication network access is *** them,the device-to-device(D2D)communication is one of the considerable *** D2D communication,the data does not need to be relayed and forwarded by the base station,but under the control of the base station,a direct local link is allowed between two adjacent mobile *** flexible communicationmode reduces the processing bottlenecks and coverage blind spots of the base station,and can be widely used in dense user communication scenarios such as heterogeneous ultra-dense wireless *** of the important factors which affects the quality-of-service(QoS)of D2D communications is co-channel *** order to solve this problem of co-channel interference,this paper proposes a graph coloring based *** main idea is to utilize the weighted priority of spectrum resources and enables multiple D2D users to reuse the single cellular user *** proposed algorithm also provides simpler power *** heterogeneous pattern of interference is determined using different types of interferences and UE and the priority of color is *** results show that the proposed algorithm effectively reduced the co-channel interference,power consumption and improved the system throughput as compared with existing algorithms.

关键词： 5G device-to-device communication wireless networks spectrum

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Enhancing Wireless Sensor Network Data Collection through Aerial Unmanned Vehicles

Enhancing Wireless Sensor Network Data Collection through Ae...

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2024 International Conference on Decision Aid sciences and Applications, DASA 2024

作者： Ahmed, Amjed Abbas Ali Alheeti, Khattab M. Najim, Ali Hamza Satar, Nurhizam Safie Mohd Aliesawi, Salah A. Hashim, Aisha Hassan Abdallah Universiti Kebangsaan Malaysia Center for Cyber Security Faculty of Information Science and Technology Bangi Malaysia Department of Computer Techniques Engineering Baghdad Iraq College of Computer and Information Technology Computer Networking Systems Department University of Anbar Anbar Iraq Department of Computer Technical Engineering Al-Diwaniyah Iraq Center for Cyber Security Faculty of Information Science and Technology Bangi43600 Malaysia College of Computer and Information Technology Department of Computer Networking Systems University of Anbar Anbar Iraq Faculty of Engineering Department of Electrical and Computer Engineering International Islamic University Malaysia Selangor Malaysia

ISBN: (纸本)9798350369106

This study addresses the critical aspect of data collection within Wireless Sensor Networks (WSNs), which consist of autonomous, compact sensor devices deployed to monitor environmental conditions. These networks have limited processing capacity, storage, short-range communication capabilities, and constrained battery power. A primary challenge in WSN s revolves around data gathering, particularly when employing static sinks, leading to premature energy depletion in nodes near these sinks. Integrating mobile collectors introduces the potential for energy conservation by shortening data routes. This article introduces three distinct algorithms for optimizing data collection in WSN s. Our approach involves an in-depth analysis of diverse strategies to mitigate packet collisions and facilitate the retransmission of lost packets. Our findings underscore the considerable impact that packet collisions can exert on the overall network performance during data gathering within wireless sensor networks. Through empirical exploration and analysis, we highlight the significance of these algorithms in enhancing the efficiency, energy conservation, and reliability of data collection processes within WSNs. This research sheds light on these algorithms' vital role in addressing the pressing challenges of data gathering and network performance optimization in wireless sensor networks. © 2024 IEEE.

关键词： Aircraft accidents

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PMSM Drive with Sliding Mode Direct Torque Control

PMSM Drive with Sliding Mode Direct Torque Control

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International Conference on Advanced engineering Theory and Applications, AETA 2022

作者： Dong, Chau Si Thien Nguyen, Quang Thanh Nguyen, Dung Quang Vo, Hau Huu Tran, Thinh Cong Brandstetter, Pavel Modeling Evolutionary Algorithms Simulation and Artificial Intelligence Faculty of Electrical and Electronics Engineering Ton Duc Thang University Ho Chi Minh City Viet Nam Faculty of Electrical and Electronics Engineering Ton Duc Thang University Ho Chi Minh City Viet Nam Faculty of Electrical Engineering and Computer Science VSB–Technical University of Ostrava Ostrava Czech Republic

ISBN: (纸本)9789819987023

The paper deals with utilization of sliding mode theory in speed control of direct torque controlled permanent magnet synchronous motor drive. In order to smooth stator current waveform, pulse-width-modulation (PWM) technique are selected, and space vector PWM is employed to receive high motor torque. Conventional proportional-integral (PI) speed controller does not guarantee high performance in both dynamic and steady-state operations, especially at times of load variation. Sliding mode control is chosen to enhance the performance of drive system. Simulations for both systems with conventional PI speed controller and sliding-mode-based speed controller are constructed. Integral performance indices including integral of time multiplied by the absolute value of speed error (ITAE), integral of time multiplied by the square of speed error (ITSE), integral of the absolute value of speed error (IAE), integral of the square of the speed error (ISE), are used to evaluate performance. Results confirm the expected performance of drive system with sliding-mode-based speed controller. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Sliding mode control

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Eye State Recognition Using InceptionV3 and VGG16

Eye State Recognition Using InceptionV3 and VGG16

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2023 International Conference on Artificial Intelligence, Blockchain, Cloud Computing, and Data Analytics, ICoABCD 2023

作者： Sun, Ziqi Chuah, Joong Huang Chai, Grace Mei Ting University of Southampton School of Electronics and Computer Science Southampton United Kingdom University of Malaya Faculty of Engineering Department of Electrical Engineering Kuala Lumpur Malaysia University of Southampton Malaysia Faculty of Electrical Engineering and Physical Sciences Johor Bahru Malaysia

ISBN: (纸本)9798350331349

Road safety is a paramount concern in modern transportation, and drowsy driving is emerging as a significant threat to both drivers and pedestrians. A prominent indicator of drowsiness is the closure of the eyes, making the timely and accurate detection of eye states a crucial technique in developing effective drowsy driving detection systems. Therefore, this study focused on an in-depth evaluation of the performance of the two transfer learning models, VGG16 and InceptionV3, in the domain of eye state recognition to prevent drowsy driving. A comprehensive set of evaluation metrics, including accuracy, precision, recall, F1 score, and the confusion matrix, were used to evaluate the performance of the two models. The research results demonstrated the superior efficacy of the Inception V3 model, which achieved an impressive accuracy rate of 92.23% and outperformed the 88.26% of VGG16. This study not only contributed a robust comparative analysis of two models but was also useful for future endeavors to further improve road safety by detecting drowsy driving through advanced eye state recognition techniques. © 2023 IEEE.

关键词： Roads and streets

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Axial Ratio Enhancing in Perfect Circularly Polarized Microstrip Antenna

Axial Ratio Enhancing in Perfect Circularly Polarized Micros...

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2023 International electrical engineering Congress, iEECON 2023

作者： Malathong, Kritthanit Konpang, Jessada Wongkasem, Nantakan Rajamangala University of Technology Krungthep Faculty of Engineering Department of Electrical and Telecommunication Engineering Sathorn Bangkok10120 Thailand College of Engineering and Computer Science The University of Texas Rio Grande Valley Department of Electrical and Computer Engineering EdinburgTX78539 United States

ISBN: (纸本)9798350332360

Three-dimensional axial ratio plots of several known circularly polarized microstrip antennas are discussed. We have found that the accepted AR value for CP wave (AR!3dB) for these antennas does not occur at the desired radiation pattern range. We then propose a perfect CP radiation microstrip antenna, where CP wave radiates covering the front of the antenna. The results show the agreement of operating frequency, AR bandwidth, gain and radiation pattern. Furthermore, the absolute electrical field direction at different observation time steps also supports the perfect CP rotation. © 2023 IEEE.

关键词： Circular polarization

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The Analysis of Device-to-Device (D2D) Communication System Operating in 5G Underlaying Cellular Networks on Multiple Bands over Nakagami-m Fading Channels

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SN computer science 2025年第5期6卷 1-15页

作者： Shatnawi, Razan A. Khodeir, Mahmoud A. Al-Mistarihi, Mamoun F. Darabkh, Khalid A. Al-Zuraiqi, Eyad T. Qasaymeh, Mahmoud M. Electrical Engineering Department Faculty of Engineering Jordan University of Science and Technology P.O. Box 3030 Irbid 22110 Jordan Computer Engineering Department School of Engineering The University of Jordan Amman 11942 Jordan Department of Telecommunications Engineering Hijjawi Faculty for Engineering Technology Yarmouk University P.O. Box 566 Irbid 21163 Jordan Computer Engineering and Communication Department Tafila Technical University Tafila 66110 Jordan

In contrast to traditional cellular connection, device-to-device (D2D) communication is a direct connection amidst adjacent mobile users that does not pass through the base station (BS) and does not rely on network infrastructure to meet low power requirements and high data rate. Cellular networks and D2D connections were combined in underlay mode to address power usage concerns. In underlay D2D communication, licensed frequency bands are utilized by both D2D and cellular connections;due to resource sharing, these bands may overlap, which lowers service quality but boosts spectral efficiency. Most existing research exclusively discuss energy efficiency (EE) in the context of single cells. This article has taken into account the entire cellular network with D2D connections on various bands, and stochastic geometric theory has been used in order to obtain closed form expressions for the probability of successful transmission (STP), the average sum rate (ASR), and EE for D2D connection underlaid cellular networks over Nakagami-m fading channels. Results of simulations are used to validate analytical conclusions. Simulation results demonstrate that higher STP, higher ASR, and lower EE all result in enhanced system performance. In addition, as the shape parameter’s value m (Nakagami-m order) increases, the EE, ASR, and STP of D2D users improve, which enhances system performance. © The Author(s), under exclusive licence to Springer Nature Singapore Pte Ltd. 2025.

关键词： Device-to-device communication Energy efficiency Nakagami-m fading channel Stochastic geometry

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Output Tracking Control of a Nonlinear System Based on Takagi-Sugeno Fuzzy Model: Generalized Partial Eigenstructure Assignment Approach

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IEEE Access 2024年 12卷 18520-18535页

作者： Soltanian, Farzad Shasadeghi, Mokhtar Mobayen, Saleh Skruch, Pawel University of Alberta Department of Electrical and Computer Engineering EdmontonABT6G 2M9 Canada Shiraz University of Technology Electrical Engineering Faculty Shiraz71557-13876 Iran National Yunlin University of Science and Technology Graduate School of Intelligent Data Science Yunlin Douliu64002 Taiwan AGH University of Science and Technology Department of Automatic Control and Robotics Kraków30-059 Poland

This paper introduces an innovative optimal control approach to achieve output tracking while incorporating H2-performance specifications in a specific class of nonlinear dynamics modeled by the Takagi-Sugeno fuzzy model (TSFM). The primary innovation lies in extending partial eigenstructure assignment to TSFM-based nonlinear systems within the framework of sliding mode control (SMC). We propose a two-step methodology for designing optimal sliding surface gains. Initially, optimal state feedback gains are computed for each rule consequence containing a linear subsystem, adhering to predetermined eigenvalues and satisfying H2-performance criteria. Subsequently, using a convex combination, the overall state feedback gain is calculated and utilized to design sliding matrix gains. The sliding matrix gains are then determined by strategically combining previously calculated state-feedback gains in a convex optimization problem. We reframe the output tracking strategy as a stabilization problem using a virtual control input and reformulate the optimization task concerning tracking state errors. This process yields state feedback gains, sliding gains, and the formulation of the virtual control input. The effectiveness of our approach is verified through comprehensive simulations, emphasizing its capability in addressing output tracking challenges within nonlinear systems. © 2013 IEEE.

关键词： Transient analysis

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Impact of Multimedia Sensor Placement to Car Licence Number Detection 2022

Impact of Multimedia Sensor Placement to Car Licence Number ...

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11th International Conference on Software and computer Applications, ICSCA 2022

作者： Amelia, Afritha Zarlis, Muhammad Suherman, Suherman Efendi, Syahril Graduate Program of Computer Science Faculty of Computer Science and Information Technology University of Sumatera Utara Indonesia Computer Science Faculty of Computer Science and Information Technology University of Sumatera Utara Indonesia Electrical Engineering Faculty of Engineering University of Sumatera Utara Indonesia

ISBN: (纸本)9781450385770

A vehicle has a license plate and can be identified by the license number attached to the vehicle plate. For detection and recognition, multimedia sensors can be used so that it requires a vehicle tracking application that has a vehicle monitoring function and has implications for various fields. One of them is a multimedia sensor that requires an optimal design and method in the form of the number of multimedia sensors to be used, the placement of the multimedia sensor positions and solutions in the event of a system failure. To achieve multimedia sensor performance, research on multimedia sensors is carried out using a camera type with Phase Detection Auto Focus (PDAF) technology which is similar to a pair of right and left eyes to see an object. The objects detected were 2 cars, where the car passed the camera sensor at a speed of 10-15 km/hour 20 times. Changes in the distance of the vehicle to the camera affect the disparity value and the object's accuracy value, namely and the object's Accuracy value of the minimum disparity value of 6.20×106 of 16.88×109. © 2022 ACM.

关键词： Disparity Vehicle plate Phase Detection Auto Focus (PDAF) Tracking application Object accuracy

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