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26th International Conference on Computer and Information technology, ICCIT 2023

作者： Ganguly, Chamak Meem, Mazeda Zafor Abdullah Faruque, Mohammed Kifayat Kabir, S.M. Hossen Rakib, Saeed Arefin, Khandaker Shams Primeasia University Dept. of EEE Dhaka Bangladesh Ahsanullah University of Science and Technology Dept. of EEE Dhaka Bangladesh ULKASEMI Pvt. Limited Circuit and System Design Dhaka Bangladesh Neural Semiconductor Limited Physical Design Dhaka Bangladesh

ISBN: (纸本)9798350359015

This paper discusses the low-power adiabatic models because the power and energy consumption increase of our used devices has become significant. In this thought, the solution of using the battery has become complex as a scale-down battery means a low power supply has to be given, and the threshold voltage of the transistors has to decrease. Techniques like multi-threshold devices (MTCMOS), variable multi-threshold devices (VTCMOS), and dynamic threshold devices (DTCMOS) come forward to mitigate the high-power consumption, which results in thinner gate-oxide, gate leakage, and power dissipation. The adiabatic technique is also one of the methods for reducing power in a device where a pulsating AC voltage is used instead of a constant voltage supply. This study proposes an adiabatic circuit for a NOR gate using a 32nm LP PTM Model. The comparative study, among the proposed circuit and PFAL, IPFAL, 2n2n2p, and ECRL used industry-standard software Cadence and LTSpice. Results show outstanding performance in power and energy dissipation as well as lower propagation delay in terms of the proposed inverter circuit, which is approximately 5.61% less than the adiabatic circuit 2N2N2P at 100MHz which has the lowest propagation delay other than the proposed inverter circuit. Power dissipation is reduced up to 77% in the proposed inverter circuit compared to the 2N2N2P adiabatic inverter circuit, which provides lower power among all the adiabatic circuits used in the experiment at 25MHz frequency. Similarly, the power dissipation for the proposed NOR circuit becomes 93% less than ECRL, which shows the lowest results after the proposed circuit at 25MHz frequency. © 2023 IEEE.

关键词： Adiabatic IPFAL (Improved Positive Feedback Adiabatic Logic) ECRL (Efficient energy recovery logic) Low-power NOR gate PFAL (Positive Feedback Adiabatic Logic) VLSI

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Two-dimensional CuO nanosheets-induced MOF composites and derivatives for dendrite-free zinc-ion batteries

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纳米研究（英文版） 2023年第5期16卷 6881-6889页

作者： Guoqiang Yuan Yang-Yi Liu Jun Xia Yichun Su Wenxian Wei YinBo Zhu Yang An HengAn Wu Qiang Xu Huan Pang School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China School of Electrical Engineering Engineering Technology Research Center of Optoelectronic Technology ApplianceTongling UniversityTangling 244061China CAS Key Laboratory of Mechanical Behavior and Design of Materials Department of Modern MechanicsCAS Center for Excellence in Complex System MechanicsUniversity of Science and Technology of ChinaHefei 230027China Department of Materials Science and Engineering SUSTech Academy for Advanced Interdisciplinary StudiesSouthern University of Science and TechnologyShenzhen 518055China

Uncontrollable dendrite growth and side reactions resulting in short operating life and low Coulombic efficiency have severely hindered the further development of aqueous zinc-ion batteries(AZIBs).In this work,we designed to grow zeolitic imidazolate framework-8(ZIF-8)uniformly on CuO nanosheets(NSs)and prepared carbon-coated CuZn alloy NSs(CuZn@C NSs)by calcination under H2/Ar *** reflected by extended X-ray absorption fine structure(EXAFS),density functional theory(DFT),and in-situ Raman,the Cu-Zn and Zn-N bonds present in CuZn@C NSs act as zincophilic sites to uniformly absorb Zn ions and inhibit the formation of Zn *** the same time,CuZn@C NSs hinder the direct contact between zinc anode and electrolyte,preventing the occurrence of side *** impressively,the symmetric cells constructed with CuZn@C NSs anodes exhibited excellent zinc plating/exfoliation performance and long life cycle at different current densities with low voltage *** addition,low polarization,high capacity retention,and long cycle life over 1000 cycles at 5 A·g-1 were achieved when CuZn@C NSs were used as anodes for CuZn@C/V2O5 full cells.

关键词： two-dimensional CuO nanosheet metal-organic frameworks (MOFs)-based composites carbon-coated CuZn alloy nanosheets dendrite-free zinc-ion battery

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Assessment of Coupled Effect of Steam Pipes on Seismic Analysis of reactor Coolant system

Assessment of Coupled Effect of Steam Pipes on Seismic Analy...

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作者： Lijuan Li Zhenyu Liu Hui Li Xianhui Ye Honglei Ai National Key Laboratory of Science and Technology on Reactor System Design Technology

reactor coolant system is connected with auxiliary pipes, surge pipes and steam pipes. In order to facilitate the dynamic analysis of reactor coolant system, it is necessary to decouple the pipes connected with the reactor coolant system. Although some international standards stipulating requirements for the decoupling of subsystems from the main system, in order to further explore the influence of decoupling steam pipes, the seismic response of reactor coolant system with or without steam pipes is simulated by using ANSYS program. Firstly, the modal analysis of reactor coolant system is carried out to analysis the influence of steam pipes on the resonant frequency of reactor system. Then, the standardized seismic dynamic analysis of reactor system with or without steam pipes is carried out. The nozzle load(inlet and outlet nozzle load of main device, such as reactor pressure vessel, steam generator, pump) and support load(of main device such as reactor pressure vessel, steam generator, pump) are output and compared. According to nozzle load and support load, it can be seen that the steam pipes have little influence on the seismic analysis of reactor coolant system, i.e. steam pipes can be decoupled in the seismic analysis of reactor coolant system.

关键词： reactor coolant system dynamic analysis seismic response decouple steam pipes

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Release of space debris from flexible nets for Active Debris Removal

Release of space debris from flexible nets for Active Debris...

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AIAA science and technology Forum and Exposition, AIAA SciTech Forum 2025

作者： Ota, Ko Takahashi, Masaki Keio University School of Science for Open and Environmental Systems 3-14-1 Hiyoshi Kohoku-ku Kanagawa Yokohama223-8522 Japan Faculty of Science and Technology Keio University Department of System Design Engineering 3-14-1 Hiyoshi Kohoku ku Kanagawa Yokohama223-8522 Japan

ISBN: (数字)9781624107238

ISBN: (纸本)9781624107238

Net-based debris capture is one of the countermeasures against space debris. This paper considers the system which consists of flexible net with actuators attached to the corner nodes to release multiple debris into transitioned orbit. The debris releasing from a net system is assumed, and the net-debris composite system is attributed to nonlinear programming. The nonlinear dynamics of net’s flexibility and contact between the net and the debris are explicitly considered so that the debris can realize the target speed and angle of velocity, and the optimized control input history of the net system actuators is derived accordingly. The validity of derived actuator inputs is verified by numerical simulations. © 2025, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

关键词： Nonlinear programming

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Stackelberg-Game Computation Offloading Scheme for Parked Vehicle-Assisted VEC and Experiment Analysis

IEEE Transactions on Intelligent Vehicles

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IEEE Transactions on Intelligent Vehicles 2024年第9期9卷 1-12页

作者： Liu, Chunhong Zhao, Mengdi Wang, Huaichen Cheng, Bo Liu, Jialei Yuan, Peiyan Engineering Lab of Intelligence Business & Internet of Things and School of Computer and Information Engineering Henan Normal University Xinxiang China State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing China Hubei Key Laboratory of Power System Design and Test for Electrical Vehicle and School of Computer Engineering Hubei University of Arts and Science Xiangyang China

Vehicle edge computing (VEC) offers users low-latency and high-reliability services by using computational resources at the network's edge. Nevertheless, because of inadequate infrastructure and limited resources, computation-intensive and delay-sensitive vehicle applications cannot be performed efficiently at the edge. Therefore, several studies have used the idle resources of parked vehicles to assist in computation offloading. In this paper, we propose a parked vehicle-assisted vehicle edge computing architecture considering multi-agent collaboration, including intelligent vehicles and edge servers. Additionally, we propose a framework for a parallel Internet of Vehicles (IoV) utilizing computational experiment. The service provider is assigned the role of owning VEC resources and recruiting parking vehicle resources. The model was constructed by using the resource consumption-service relationship of both offloading parties to ensure service quality. First, a Stackelberg game model was constructed based on the interaction between requesting vehicles and a service provider. The latter was the leader, and the requesting vehicles were the followers. The Nash equilibrium for optimal pricing and offloading allocations was attained and verified, and a distributed gradient-based equilibrium algorithm was designed to solve the Stackelberg game model and obtain the final decision through mutual communication. The method also protects the privacy of participants and respects the willingness of requesting vehicles to offload. Finally, the simulation experiments confirmed that the proposed algorithm can achieve game equilibrium. Furthermore, it outperformed state-of-the-art algorithms in improving the service provider's utility. IEEE

关键词： Vehicles

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Network-Transparent Decryption Method in Edge Area Compatible with TLS 1.3

Network-Transparent Decryption Method in Edge Area Compatibl...

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Annual Conference of Industrial Electronics Society

作者： Takuma Fukui Yuri Sato Hiroaki Nishi Graduate School of Science and Technology Keio University Kohoku Yokohama Kanagawa Japan Department of System Design Faculty of Science and Technology Keio University Kohoku Yokohama Kanagawa Japan

ISBN: (数字)9781665464543

ISBN: (纸本)9781665464550

In IoT applications, service provision commonly leverages the cloud infrastructure. However, the processing system at the edge is expected recently. It can process private information collected in factories and other locations without exposing it externally by using a distributed networked system. Typically, this private information is encrypted, and it can only be decrypted in the cloud. It has been difficult to provide the processing system at the edge. This study proposed and implemented the system to enable secure, Transport Layer Security (TLS) 1.3-compliant, and authentication-compliant processing under an encrypted communication environment between the terminal and the cloud, based on the system to realize edge processing called a transparent add-on. It also defines communication protocols. The latency introduced by the introduction of the proposed system is equivalent to the delay caused by adding one router to the network path. Therefore, the proposed system does not cause any harm to the provision of services after it is implemented.

关键词： Industries Industrial electronics Cloud computing Authentication Routing protocols Production facilities Delays Cryptography Internet of Things

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Practical k-Anonymization Approach for Multiple Faces in Photographs

Practical k-Anonymization Approach for Multiple Faces in Pho...

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Annual Conference of Industrial Electronics Society

作者： Takeshi Takusagawa Hiroaki Nishi Graduate School of Science and Technology Keio University Kohoku Yokohama Kanagawa Japan Department of System Design Faculty of Science and Technology Keio University Kohoku Yokohama Kanagawa Japan

ISBN: (数字)9781665464543

ISBN: (纸本)9781665464550

Recently, the increased utilization of data has led to the development of various services. However, using data necessitates anonymization techniques for privacy. multi-input k-anonymizer unit (MIKU) [1], a facial image anonymization method proposed by Nakamura et al., anonymizes images by averaging the latent vectors of facial images in the latent space of StyleGAN [2]. However, MIKU has two limitations: (1) it only targets single-face images, and (2) it merely calculates the centroid of the latent vectors between the original images, thus not preserving the statistical information of the original image dataset. Therefore, this paper proposes a framework to realize a k-anonymization method for photos containing multiple faces. The anonymization process uses a proposed framework comprising multiple modified artificial intelligence applications. First, identifiers, quasi-identifiers, and sensitive attributes are specified for a photo with multiple faces. This paper proposes three methods for generalizing age, one of the quasi-identifiers. The first is the random method, which replaces the age of the original image with the age of a random individual. The second is the uniform distribution method, which assigns ages based on the uniform distribution of age ranges after anonymization. The third is a kernel method that assigns ages using random numbers obtained from a probability density function computed by kernel density estimation. The experiments resulted in an Fréchet inception distance (FID) [2] equivalent to MIKU without any observed difference for the specified sensitive attributes. Furthermore, the most effective results were obtained using the kernel method, indicating that the proposed method is effective for the k-anonymization of facial images.

关键词： Industrial electronics Data privacy Estimation Probability density function Vectors Information filtering Kernel Artificial intelligence Faces Information integrity

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Research and Application of Nuclear reactor Computational Data Framework Based on HDF5 7th

Research and Application of Nuclear Reactor Computational Da...

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7th International Conference on Artificial Intelligence and Security, ICAIS 2021

作者： Lu, Wei Feng, Jintao Yang, Hao Zeng, Hui Pan, Junjie Science and Technology on Reactor System Design Technology Laboratory Nuclear Power Institute of China Chengdu610213 China School of Computer Science Chengdu University of Information Technology Chengdu610225 China School of Information and Software Engineering University of Electronic Science and Technology of China Chengdu610054 China

ISBN: (纸本)9783030786175

Nuclear reactor computing software need to process and maintain complex and massive data sets. In order to meet the requirement of mass data storage and processing in software, the data storage model and I/O method and programming interface of HDF5 (Hierarchical Data Format v5) are deeply studied. According to the data storage and processing requirement of typical nuclear reactor computing data such as assembly or core neutronics computing data and core thermal-hydraulic computing data, RCDF-H5 (reactor Compute Data Framework based on HDF5) is proposed. KYMRES (KYlin-2 Main RESults databank) and COMRES (COre Main RESults databank) are designed and implemented based on RCDF-H5. The performance tests show that RCDF-H5 has a higher I/O efficiency than conventional storage solutions. A new data storage and management solution for nuclear reactor computing software is provided. © 2021, Springer Nature Switzerland AG.

关键词： Digital storage

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Wideband RCS Enhancement Based on Phase Gradient Metasurface 5

Wideband RCS Enhancement Based on Phase Gradient Metasurface

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5th IEEE International Conference on Electronic Information and Communication technology, ICEICT 2022

作者： Zeng, Xianliang Zhong, Xiaoying Cheng, Yingbiao Fang, Chonghua Wu, Weijun Science and Technology on Electromagnetic Compatibility Laboratory China Ship Development and Design Center Wuhan China China Ship Development and Design Center Combat System Develop Department Wuhan China

ISBN: (数字)9781665472111

ISBN: (纸本)9781665472111

In this work, a reflection phase gradient metasurface is proposed to realize wideband backscattering enhancement performance. Based on the generalized Snell's law, the phase difference between adjacent metasurface cells is calculated with specific retroreflective direction firstly. As a proof of concept, a square loop unit cell with different dimensions is then designed to achieve the effective reflection phase range. Furthermore, in order to obtain a wideband backward RCS enhancement, the metasurface unit cells are designed with 2-bit coding sequence. Simulation results show that the presented whole retrodirective metasurface can realize effective RCS enhancement in X band, compared to the same-sized PEC plate. © 2022 IEEE.

关键词： Geometry Simulation Metasurfaces Encoding Information and communication technology Wideband Backscatter

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High Performance Torque Control of Drive systems for Legged Robots

High Performance Torque Control of Drive Systems for Legged ...

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IEEE International Conference on Mechatronics, Robotics and Automation (ICMRA)

作者： Yuanhang Yang Xiaoxiang Liu Wei Zhang School of System Design and Intelligent Manufacturing Southern University of Science and Technology Shenzhen China

ISBN: (数字)9798350307535

ISBN: (纸本)9798350307542

This paper focuses on the design of high performance torque control drive system for legged robots. Achieving robust torque response performance is essential for the motors employed in these robots. Considering different transmission configurations, we introduce two distinct inertia models: one-mass system and two-mass system. For the case of a one-mass system, we design a current loop control strategy based on the Dead-Beat Control (DBC), which achieves faster torque response. In the context of the two-mass system, we propose a Model Predictive Control (MPC) method to effectively enforce constraints on both electromagnetic torque and shaft torque. Subsequently, we conduct separate experimental validations for these two proposed models, leading to superior performance as compared to traditional methods.

关键词： Legged locomotion Shafts Torque Torque control Control systems Motors Object recognition Electromagnetics Robots Predictive control

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