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2nd International Conference Computational and Characterization Techniques in Engineering and Sciences, IC3TES 2024

作者： Sharma, Sakshi Kumar, Kaushal Khan, Baseem Pachauri, rupendra Kumar Kumar Gupta, Ankur Hawassa University Department of Electrical and Computer Engineering Hawassa05 Ethiopia Upes School of Advanced Engineering Dehradun248007 India International University if Business Agriculture and Technology Miyan Research Institute of Technology Dhaka1230 Bangladesh Iimt University R&d Department Meerut India

ISBN: (纸本)9798350364699

The scientific community has recently taken an interest in perovskite solar cells, often known as PSCs. dual halide PSC has the best efficiency reported in the literature at 20.9%. The purpose of this work is to improve a lead-free dual halide photovoltaic (PSC) by modifying the material of the hole transport layer (HTL) and the electron transport layer (ETL), as well as regulating the thickness of the absorber layer. In order to evaluate the device, the following metrics are taken into consideration: fill factor (FF), power conversion efficiency (PCE), open circuit voltage (VOC), and short circuit current density (JSC). With optimization, the gadget can reach an efficiency level of 24.03%. Further investigation into a tandem or dual structure method may be possible with this work. © 2024 IEEE.

关键词： Perovskite solar cells

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Accelerating deep Neural Networks with a Low-Cost Lossless Compression

Accelerating Deep Neural Networks with a Low-Cost Lossless C...

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2025 International Conference on Electronics, Information, and Communication, ICEIC 2025

作者： Kim, Seongwook Byeon, Gwangeun Lee, Seungeui Bae, Youngseok Hong, Seokin Sungkyunkwan University Department of Electrical and Computer Engineering Suwon Korea Republic of Advanced R&D Center Hanwha Systems Co. Ltd. Korea Republic of Agency for Defense Development Emerging Science and Technology Directorate Korea Republic of

ISBN: (纸本)9798331510756

Since deep learning inference involves a significant amount of computations, there have been a lot of efforts to accelerate the inference process by eliminating ineffectual compu-tations. As a solution to this problem, several sparsity-aware deep learning accelerators have been proposed. These accelerators perform the inference on compressed data (filters and feature maps) and dynamically remove the ineffectual multiplications with zero operands. For efficiently handling the compressed data on the accelerators, a simple and effective compression scheme, which encodes the whole data with its nonzero values and their positions, is necessary. However, prior approaches have several shortcomings, such as low compression efficiency and high complexity in compression and decompression hardware. This paper proposes a low-cost compression scheme that can be applied to sparsity-aware deep-learning accelerators. The compression scheme synergistically combines two low-cost compression schemes: Zero-Value Compression (ZVC) and Base-delta-Immediate Compression (BdI). Our experimental evaluation shows that the proposed compression scheme achieves an average compression ratio of 2.26, resulting in 2.33x performance improvement, © 2025 IEEE.

关键词： data handling

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Analysing various algorithms applied to Alzheimer's disease dataset to help the Future Generation 2

Analysing various algorithms applied to Alzheimer's disease ...

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2nd IEEE International Conference on Intelligent and Innovative Technologies in Computing, Electrical and Electronics, ICIITCEE 2024

作者： Athinarayanan, S. Navaz, K. Tamilselvi, P. Shajeena, J. Vishwa Priya, V. Joel, M. robinson School of Computing Vel Tech Rangarajan Dr. Sagunthala R&d Institute of Science and Technology Department of Cse Chennai Tamil Nadu Avadi600062 India Vel Tech Rangarajan Dr. Sagunthala R&d Institute of Science and Technology Department of Computer Science and Engineering Avadi Chennai600062 India Vels Institute of Science Technology and Advanced Studies Department of Computer Science Chennai600117 India Vels Institute of Science Technology and Studies Department of Computer Science Chennai India Kings Engineering College Department of Information Technology Chennai India

ISBN: (纸本)9798350306415

A sort of brain illness that affects the brain is Alzheimer's. Nowadays, older adults are more likely to have these ailments. People who have this illness have very poor memories and decreased memory. Additionally, their brain isn't working correctly. As a result, their regular practice is progressively beginning to decline. Alzheimer's is a kind of dementia for which there is no definitive treatment. This essay will help us learn more about Alzheimer's illness. We shall learn more about its causes, symptoms, and remedies. Additionally, we investigate several illness prediction methods employing Graph Neural Networks denoted as GNNs. decision Tree, random Forest algorithms, and more. However, the random forest classifier gave good results with 86% accuracy and good recall values. © 2024 IEEE.

关键词： Alzheimer dementia GNN Graph Neural Network Prediction

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rational manipulation of electrolyte to induce homogeneous SEI on hard carbon anode for sodium-ion battery

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Journal of Energy Chemistry 2024年第7期94卷 414-429页

作者： Lu Liu Lingling Xiao Zhi Sun Shahid Bashir ramesh Kasi Yonghong Gu ramesh Subramaniam Research Center for Clean Utilization Technology Phosphorous Resources Hubei Three Gorges PolytechnicYichang 443000HubeiChina Department of Physics Faculty of ScienceUniversiti MalayaKuala Lumpur 50603Malaysia UM Power Energy Dedicated Advanced Centre(UMPEDAC) Level 4Wisma R&DUniversiti MalayaKuala Lumpur 59990Malaysia Department of Chemistry Saveetha School of EngineeringInstitute of Medical and Technical ScienceSaveetha UniversityChennai 602105TamilnaduIndia

Sodium-ion batteries (SIBs) have great potential to be the next major energy storage devices due to their obvious advantages and developing advanced electrodes and electrolytes is urgently necessary to promote its future ***,hard carbon as a state-of-the-art anode of SIBs still suffers from the low initial Coulomb efficiency and unsatisfactory rate capability,which could be improved by forming desirable solid electrolyte interphases (SEI) to some ***,the chemistry and morphology of these interfacial layers are fundamental parameters affecting the overall battery operation,and optimizing the electrolyte to dictate the quality of SEI on hard carbon is a key ***,this review summarizes the recent research on SEI design by electrolyte manipulation from solvents,salts,and *** also presents some potential mechanisms of SEI formation in various electrolyte ***,the current advanced characterization techniques for electrolyte and SEI structure analyses have been comprehensively ***,current challenges and future perspectives of SEI formation on hard carbon anode for SIBs are provided from the viewpoints of its compositions,evolution processes,structures,and characterization techniques,which will promote SEI efficient manipulation and improve the performance of hard carbon,and further contribute to the development of SIBs.

关键词： SEI Electrolyte optimization Hard carbon Electrochemical performance Sodium-ion batteries

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Empirical Study on Heat Transfer Coefficients in Lumped Parameter Thermal Network of direct-Oil Cooled Permanent Magnet Synchronous Motor

Empirical Study on Heat Transfer Coefficients in Lumped Para...

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International Conference on Electrical Machines, ICEM

作者： Jun-Woo Chin Seojun Park Jaeyeob Hwang deok-Jin Kim Ho-Chang Jung Advanced Powertrain R&D Department Korea Automotive Technology Institute Cheonan Rep. of Korea

ISBN: (数字)9798350370607

ISBN: (纸本)9798350370614

This paper presents an empirical study on heat transfer coefficients within a lumped parameter thermal network (LPTN) applied to a direct oil-cooled permanent magnet synchronous motor (PMSM). The study focuses on identifying unknown parameters within the LPTN, specifically the convection heat transfer coefficient (HTC) of automatic transmission fluid (ATF) oil, as well as the equivalent thermal conductivity and heat capacity of the coil. To improve the reliability of the LPTN, a proposed model for heat transfer by ATF oil is introduced. Additionally, the parameters influencing the convection HTC of ATF oil, including geometry, velocity, and temperature, are analyzed. These unknown parameters are crucial for accurate thermal analysis but those are challenging to determine due to the composite nature of the coil and the complex behavior of ATF oil. To address this challenge, a correlation process with temperature results is conducted, employing design of Experiment (dOE) with Latin Hypercube Sampling (LHS), surrogate modeling with the Kriging method, and optimization with a genetic algorithm (GA). Future work will involve expanding the scope of experimentation to include a wider range of operating points and flow rates, thus providing more comprehensive empirical data for correlation.

关键词： Coils Correlation Oils Permanent magnet motors Synchronous motors Thermal analysis reliability Convection Genetic algorithms resistance heating

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robust bonding at 175°C of pressureless Ag nanoparticle sinter joint on Ni/Au finished Cu substrates in air 22

Robust bonding at 175°C of pressureless Ag nanoparticle sin...

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22nd International Conference on Electronics Packaging, ICEP 2023

作者： Kim, Seoah Kim, Min-Su Mhin, Sungwook Kim, dongjin Korea Institute of Industrial Technology Advance Joining and Additive Manufacturing R&D Department Incheon21999 Korea Republic of Kyonggi University Graduate School Department of Advanced Materials Engineering Suwon16227 Korea Republic of

ISBN: (纸本)9784991191152

Ag sinter joining which has exceptional characteristics is promising as a die-attach material for wide band-gap (WBG) power devices in electric vehicles (EVs). So far, many Ag sinter joining technologies in the range of 250 °C to 300 °C have been developed, but the industry still requires lower die-attach temperatures and more accessible processing methods. We have been pursuing technology that minimizes die-attach temperature and pressure to minimize the warpage of the power module structure. In this work, a pressureless Ag sintering was carried out in air at 175 °C without any pressure, and the bonding strength achieved approximately 37 MPa. The robust bonding mechanism of the Ag sinter joining was investigated using EBSd and Xrd analysis on the microscale. This study can provide a solution for the possibility of the diebonding process at 175 °C and effective heat dissipation design of the power module. © 2023 Japan Institute of Electronics Packaging.

关键词： Energy gap

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Arc plasma-deposited Co single-atom catalysts supported on an aligned carbon nanofiber for hydrogen peroxide electrosynthesis and an electro-Fenton process

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Carbon Energy 2024年第11期6卷 234-255页

作者： Chang‐Kyu Hwang Sooyeon Kim Ki ro Yoon Thao Thi Le Chinh V.Hoang Jae Won Choi Wenjun Zhang Sae Yane Paek Chung Hyeon Lee Ji Hyun Lee Keun Hwa Chae Sohee Jeong Seung Yong Lee Byeong-Kwon Ju Sang Hoon Kim Sang Soo Han Jong Min Kim Materials Architecturing Research Center Korea Institute of Science and Technology (KIST))seculSecrngbuk-guRepublic of Korea Department of Micro/Nano Systems Korea UniversitySeoulSeongbuk-guRepublic of Korea Computational Science Research Center Korea Institute of Science and Technology (KIST)SeculSecrngbuk-guRepublic of Korea Advanced Textile R&D Department Korea Institute of Industrial Technology (KITECH)AmsanGyeonggi-doRepublic of Korea Extreme Materials Research Center Korea Institute of Science and Technology (KIST)SeoulSeongbuk:guRepubic of Korea Nanoscience and Technology KIST School University of Science and TechnologySeoulRepublic of Korea Advanced Analysis and Data Center Korea Institute of Science and TechnologySeoulSeongbuk-guRepublic of Korea Display and Nanosensor Laboratory School of Electrical Engineering Korea UniversitySeoulSeongbuk guRepublic of Korea KHU-KIST Department of Converging Science and Technology Kyung Hee UniversitySeoulSeongbuk-guRepubic of Korea

Atomically dispersed single-atom catalysts(SACs)on carbon supports show great promise for H_(2)O_(2) electrosynthesis,but conventional wet chemistry methods using particulate carbon blacks in powder form have limited their potential as two-electron(2^(e−))oxygen reduction reaction(Orr)***,we demonstrate high-performance Co SACs supported on a free-standing aligned carbon nanofiber(CNF)using electrospinning and arc plasma deposition(APd).Based on the surface oxidation treatment of aligned CNF and precise control of the deposition amount in a dry-based APd process,we successfully form densely populated Co SACs on aligned *** experimental analyses and density functional theory calculations,we reveal that Co SAC has a Co–N_(2)–O_(2) moiety with one epoxy group,leading to excellent 2^(e−)Orr ***,the aligned CNF significantly improves mass transfer in flow cells compared to randomly oriented CNF,showing an overpotential reduction of 30 mV and a 1.3-fold improvement(84.5%)in Faradaic efficiency,and finally achieves an outstanding production rate of 15.75 mol gcat^(−1) h^(−1) at 300 mA cm^(−2).The high-performance Co SAC supported on well-aligned CNF is also applied in an electro-Fenton process,demonstrating rapid removal of methylene blue and bisphenol F due to its exceptional 2e^(−)Orr activity.

关键词： arc plasma deposition electro-Fenton flow reactor hydrogen peroxide production oxygen reduction reaction single-atom catalysts

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ELECTrIC FIELd rELAXATION BY FGM ON PErMITTIVITY TO THrEE-COrE TYPE GIS SPACEr 23

ELECTRIC FIELD RELAXATION BY FGM ON PERMITTIVITY TO THREE-CO...

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23rd International Symposium on High Voltage Engineering, ISH 2023

作者： Kato, Katsumi Bito, Soya Nomura, ryuto Masui, Hidetaka Okamoto, Kenji Department of Electrical Engineering and Information Science NIT Niihama College Niihama Japan Advanced Technology Laboratory Corporate R&D Headquarters Fuji Electric Co. Ltd. Hino Japan

ISBN: (纸本)9781839539954

For the relaxation of electric field (E-field) stress around Gas Insulated Switchgears (GIS) spacer, we have proved the effectiveness of an application of spacer with functionally graded materials (FGM) with a spatial distribution of permittivity H (H-FGM). However, we have investigated the effectiveness of the FGM spacer only in the case of single-core type GIS, so far. For wider application of the FGM spacer, it is needed to investigate its effectiveness not only in single-core type but also in three-core type GIS. For this purpose, in this paper, we carried out the three-dimensional electric field analysis for three-core type GIS, in order to investigate the E-field relaxation effect by an application of H-FGM spacer. Firstly as fundamental investigations, we consider a simplified model for a three-core type FGM spacer. The cone-type spacer model for the three-core type GIS is used. We added H distribution into the internal part of the spacer. Then we calculate E-field stress in and around three-core type GIS spacer for various H distributions inside the spacer. Finally, we quantified relaxation effect of the maximum E-field stress. © The Institution of Engineering & technology 2023.

关键词： Permittivity

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Image Enhancement in Fundus Images using Modified Frangi Vesselness Filter in comparison with Hessian and Gaussian Filter 2

Image Enhancement in Fundus Images using Modified Frangi Ves...

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2nd IEEE International Conference on Networking and Communications, ICNWC 2024

作者： Nanmaran, r. Moorthy, Vijai Meyyappan Srinath, r. ramasamy, r. Imran Javeed, S. Srimathi, S. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology Department of Electronics and Communication Engineering Tamilnadu Chennai India Vignan Foundation of Science and Research and Technology Department of Advanced Computer Science and Engineering Andhra Pradesh Guntur India Ramco Institute of Technology Department of ECE Tamilnadu Rajapalayam India Saveetha School of Engineering SIMATS Department of Bio Technology Tamilnadu Chennai India

ISBN: (纸本)9798350365269

The main aim of this work to develop image enhancement algorithm using modified vesselness filter for fundus image. Image enhancement using modified vesselness filter has been designed and compared with hessian and Gaussian filters. Performance of proposed algorithm is measured using high values of Peak Signal to Noise ratio (PSNr), Structural Similarity Index Measure (SSIM), Normalized Correlation (NC), and Naturalness Image Quality Evaluator (NIQE). Modified frangi vesselness filter provides PSNr = 41.31db, SSIM = 92.9%, NC = 23.25%, NIQE = 30.70%. Hessian filter provides PSNr = 41.37db, SSIM = 10.85%, NC = 18.65%, NIQE = 23.64%. Gaussian filter provides PSNr = 11.33db, SSIM = 95.23%, NC = 99.24%, NIQE = 6.29%. The designed filters were tested against various noises like Gaussian, salt and pepper, speckle noise. All three filters performed good against Gaussian noise over other two types of noises. Based on the simulation results modified vesselness filter performed well when compare other two filters. Keywords: Improved Filter design, Frangi Vesselness Filter, Hessian Filter, Gaussian Filter, Medical Image Enhancement. © 2024 IEEE.

关键词： Image enhancement

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Multi-domain retarders for Eliminating Off-axis reflection Color differences in Automotive OLEd displays

Multi-domain Retarders for Eliminating Off-axis Reflection C...

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SId International Symposium digest of Technical Papers, 2023

作者： Lee, Hyun Wook Ha, Jin Uk Baek, Jong-Min Lee, Jae Yong Jung, Seung Jae Choi, Tae-Hoon Department of Advanced Materials R&D Korea Automotive Technology Institute Cheonan31214 Korea Republic of Sales Team Sanayi System Co. Ltd. Incheon21984 Korea Republic of R&D Center Duckyang Ind. Co. Ltd. Suwon-si Gyeonggido16229 Korea Republic of

A two-domain quarter-wave retarder is employed as one layer of the circular polarizer to compensate for the retardation dependent on the incident angles. The reflective color differences of the panel between normal and oblique directions can be completely eliminated in an ambient light environment because of the effects of the multi-domain retarder. © 2023, John Wiley and Sons Inc. All rights reserved.

关键词： Liquid crystals

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