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IEEE International Conference on Consumer Electronics-Taiwan (ICCE-TW)

作者： José E.B.S. Linhares Gustavo M. Torres Matheus S. Uchôa Adriel V. Santos Myke d.M. Valadão diego A. Amoedo Maria regina Araújo Souza Edma V. C.U. Mattos Antônio M.C. Pereira Agemilson P. Silva Allan C. Brito Allan r. A. Silva rômulo S.F. Jean A. O. Nunes Madson r. Lemos Maura r. A. Costa Waldir S.S. Júnior Celso B. Carvalho Federal University of Amazonas and Center for R&D in Elec. and Inf. Tech. (UFAM/CETELI) Amazon Brazil ENVISION/TPV Group Technology Limited Amazon Brazil INDT Institute for Technological Development Amazon Brazil

ISBN: (数字)9798350386844

ISBN: (纸本)9798350386851

In this work, conducted by three partners, UFAM/CETELI, INdT and Envision (TPV Group), we present a system for modeling and sensing data acquired from various machines, including both legacy and modern types, in industrial environments. This approach involves monitoring the on-off state of machines to gather information about their operation on the production line. The results show the successful implementation of the system, highlighting its potential application in predictive maintenance solutions within the context of Industry 4.0.

关键词： Solid modeling Vacuum systems Pumps Production Predictive models data models real-time systems

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Effect of Heating Scan Strategy Using Low Energy density on relief of Thermal residual Stress in L-Pbf Process For Cocrmo Alloy

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SSrN 2023年

作者： Bang, Gyung Bae Park, Jung Hyun Kim, Won rae Kang, Hyun-Su Hyun, Soong-Keun Park, Hyung-Ki Lee, Taeg Woo Kim, Hyung Giun Functional Materials and Components R&D Group Korea Institute of Industrial Technology Gangneung05440 Korea Republic of Department of Materials Science and Engineering Inha University Incheon22212 Korea Republic of Gangwon Regional Division Korea Republic of

This study investigates the effects of low energy density laser rescanning of Additive Manufacturing (AM) called Laser-Powder Bed Fusion (L-PBF) on the microstructure, residual stresses, and mechanical characteristics of CoCrMo alloy specimens. Specimens were fabricated under four conditions, i.e., secondary laser scanning with energy density 5%, 10%, and 20%, compared to the first laser irradiation energy densities (AB, 19.41 J/mm3). To confirm the effect of the second laser irradiation, the phase change was analyzed using X-ray diffraction (Xrd), and the shape and distribution of the face-centered cubic (FCC) and hexagonal closed packing (HCP) phases were confirmed through electron backscatter diffraction (EBSd) analysis. In particular, the correlation between microstructural stability and residual stress reduction was analyzed, and the effects of microstructural changes on mechanical properties were studied. Through this study, it was confirmed that the appropriate laser conditions during the L-PBF process can act as a heat source, resulting in a heat treatment effect. © 2023, The Authors. All rights reserved.

关键词： residual stresses

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Initial stage of degradation process of alumina-silica refractory by molten Al-5Mg alloy

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Keikinzoku/Journal of Japan Institute of Light Metals 2022年第11期72卷 631-637页

作者： Tamura, Yosuke Soda, Hiroshi McLean, Alexander Ishikawa, Takaaki Ishizuka, Michio Kawasaki, Masato Mizuno, Kentaro Motegi, Tetsuichi Department of Advanced Materials Science and Engineering Chiba Institute of Technology 2-17-1 Tsudanuma Chiba Narashino-shi275-0016 Japan University of Toronto TorontoONM5S 3E4 Canada Chiba Industrial Technology Research Institute Chiba Chiba-shi Japan R&D Center Ceramics Div. Rozai Kogyo Kaisha Ltd. Hyogo Ako-shi Japan Development Center AGC Ceramics Co. Ltd. Hyogo Takasago-shi Japan Zmag Ltd. Chiba Shiroi-shi Japan Chiba Institute of Technology Chiba Funabashi-shi Japan

Initial stages of the refractory degradation process by molten Al-5Mg alloy were investigated by analyzing the degradation structures caused by an interaction with molten metal during heat cycles. The refractory aggregate, found to be poly-crystalline, consisting of cristobalite (SiO2) and mullite (Al6Si2O13), was deteriorated ahead of the surrounding matrix. Metal permeated into the refractory, forming a thin metal layer along the crucible surface below the molten metal line at an early stage of degradation process, which would later serve as the bases for the metal infiltration path through the refractory above the molten metal line. A discontinuous film (thickness2O4, was formed at the "melt / refractory" interface. At the experimental temperature of 1150°C, Mg in the molten metal would build up as Mg gas at MgAl2O4 film/refractory interface and easily diffuse into the aggregate body and react with the aggregate components of SiO2 and Al6Si2O13 to form MgAl2O4 and Al-Mg-Si-O compounds. This was followed by the molten metal infiltration into the refractory while reducing the Al-Mg-Si-O compound to form MgAl2O4. Through the initial degradation process MgAl2O4 would finally form in a successive chain of reactions, resulting in deterioration of the crucible. © 2022 The Japan Institute of Light Metals.

关键词： Corundum

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revealing the Electrochemical- Mechanical Correspondence between Electrode Films and 20 Ah Prismatic Li-Ion Batteries Via Optical Fiber Monitoring

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SSrN 2024年

作者： Ge, Xiaoyu Zhang, Yi du, rui Chen, Nian Yu, Yifei Li, Zhen Huang, Yunhui State Key Laboratory of Material Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan430074 China Camel Group Wuhan Optical Valley R&D Center Co. LTD Wuhan430075 China

revealing the connections and corresponding relationship between the electrodes’ changes and the cell-level strain variation can enhance the accurate estimation of state of charge (SOC), state of health (SOH), cycling life, safety and other key factors of the large capacity prismatic batteries. By utilizing Fiber Bragg grating (FBG) sensors and "Zero-strain" lithium titanate (LTO) electrode, strain behaviors of LiFePO4 (LFP) and graphite electrodes have been directly monitored and further connected to the strain variation of a 20 Ah LFP||Graphite prismatic battery monitored by surface-implanted FBG. Furthermore, we also shown the feasibility for accuratly estimating the SOC and SOH of the battery based on strain profiles, encouraging the utilaztion of FBG strain monitoring in actual engineering filed. © 2024, The Authors. All rights reserved.

关键词： Lithium-ion batteries

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Influence of Fractures on CO2 Huff-n-Puff Effect of Staged Fractured Horizontal Wells in Tight Oil reservoirs 11th

Influence of Fractures on CO2 Huff-n-Puff Effect of Staged F...

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11th International Field Exploration and development Conference, IFEdC 2021

作者： Zhou, Tuo Zhong, Zhao Chen, Chi Yang, Hui Xiao, Yue Baletabieke, Bahedaer Kong, Xiang-ji Zhou, Chuan Xiang, Ying Gao, Qing-yun Tian, Yajie CNPC Engineering Technology R&D Company Limited Beijing China Exploration Division PetroChina Southwest Oil and Gasfield Company Chengdu China China Petroleum Technical Service Corporation Limited Beijing China China National Oil and Gas Exploration and Development Company Ltd. Beijing China Research Institute of Petroleum Exploration and Development Beijing China

ISBN: (纸本)9789811921483

Tight oil has become a new growth point for global oil and gas reserves and production. Conventional tight oil reservoirs are mainly developed in depletion mode, and water flooding cannot effectively supplement formation energy. CO2 has strong advantages in terms of elasticity, mutual solubility with crude oil, etc., and is considered to be an effective way to supplement energy. At present, staged fracturing of horizontal wells has gradually become the main development method for tight oil reservoirs, but it still fails to meet production requirements. In this paper, taking the Chang 8 tight oil reservoir in the Ordos Basin as an example, it is the first time to use a combination of physical simulation and numerical simulation, and use an original large-scale physical simulation experiment system to focus on the impact of fractures on the CO2 huff-n-puff effect of staged fractured horizontal wells in tight oil reservoirs. Through the original large-scale physical simulation experiment system (which can simulate a 50 * 50 * 6 cm core), using a combination of physical simulation and numerical simulation to analyze the impact of fractures on the CO2 huff-n-puff effect of horizontal wells with staged fracturing. Studies have shown that fracture length and fracture density are the main controlling factors that affect the CO2 huff-n-puff effect of staged fracturing horizontal wells, and reasonable fracture parameters are the key to improving development efficiency. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Fracture

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Securing the digital Frontier: An Analysis of Cybersecurity Strategies and Obstacles

Securing the Digital Frontier: An Analysis of Cybersecurity ...

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2025 IEEE International Conference on Computational, Communication and Information technology, ICCCIT 2025

作者： Saravanan, V. Indumathi, G.S. James, Sathish Kumar Pandi, V. Samuthira Shakila, J. Banumathi, S. Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences Saveetha University Department of Nano Electronics Materials and Sensors Tamil Nadu Chennai India St Joseph's College of Engineering OMR Department of MBA Chennai India BNY Mellon Center PittsburghPA15219 United States Chennai Institute of Technology Centre for Advanced Wireless Integrated Technology Tamil Nadu Chennai India Jeppiaar Engineering College Rajiv Gandhi Salai Department of CSE Chennai India Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology Department of Computer Science India

ISBN: (纸本)9798331512965

In an era where digital connectivity is ubiquitous, the imperative to safeguard cyberspace has never been more pressing. This research delves into the multifaceted landscape of cybersecurity, examining the strategies employed by governments, businesses, and individuals to protect sensitive information and critical infrastructure from cyber threats. By leveraging a mixed-methods approach, which includes a review of existing literature, case studies, and expert interviews, the research provides a nuanced understanding of the cybersecurity ecosystem. Key findings reveal that while technological advancements have bolstered defense mechanisms, including sophisticated malware, advanced persistent threats (APTs), and insider threats, continues to outpace traditional security measures. Moreover, the study underscores the critical role of human factors, such as user error and inadequate training, as significant vulnerabilities. The research concludes with a set of recommendations aimed at enhancing cybersecurity posture, including the adoption of a proactive, adaptive defense strategy, increased investment in cybersecurity education and awareness, and the fostering of international cooperation to combat transnational cybercrime. The insights gleaned from this analysis are intended to inform policymakers, industry leaders, and cybersecurity professionals, equipping them with the knowledge to fortify the digital frontier against evolving threats. © 2025 IEEE.

关键词： Cyber attacks

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Application of amide solvents in electrolytes significantly improves specific energy of Li/CFx primary batteries

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Applied Surface Science 2025年 706卷

作者： Xu, Jianwen Zhu, Menghan Zhang, Mingdao Song, Li Jin, Yachao Jiangsu Innovation Platform of Lithium Composite-Materials for Battery R&D Institute of Energy Supply Technology for High-end Equipment Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology School of Environmental Science and Engineering Nanjing University of Information Science & Technology Jiangsu Nanjing210044 China

Lithium/Carbon Fluoride (Li/CFx) primary batteries are widely regarded as one of the most promising electrochemical energy supply technologies in the military and medical fields due to their high energy density, low self-discharge rate, and good safety performance. However, Li/CFx batteries suffer from poor power density and severe voltage hysteresis, and solutions are often considered in terms of both cathode and electrolyte. In this work, an N,N-dimethylacetamide (dMA)-based electrolyte was designed to enhance the discharge platform of Li/CFx. The results show that dMA has a high dielectric constant and can effectively improve the ionic conductivity of the electrolyte as well as increase the solubility of lithium salts in the electrolyte. The optimized electrolyte was 1 M lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) dissolved in dMA and PC (7:3 vol ratio). At 1C discharge rate, the specific capacity reached 726 mAh/g, the specific energy reached 1634 Wh/kg, and the voltage platform was raised to 2.32 V. The optimized electrolyte also demonstrates better discharge performance in pouch batteries. © 2025

关键词： Nuclear batteries

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Corrosion properties of Alloy 35Mo, new PrEN 52 alloy for refinery and chemical industry

Corrosion properties of Alloy 35Mo, new PREN 52 alloy for re...

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Corrosion 2020

作者： Gullberg, daniel Öhnfeldt, robert Mattsson Yhr, Andreas rahm Sandvik Materials Technology Tube R&D Sandviken811 81 Sweden

Alloy 35Mo is a new versatile Ni-alloy which has corrosion and mechanical properties comparable to advanced Ni-base alloys, with the benefit that it can be processed like a stainless steel. The alloy was recently designated UNS N08935 with the composition 35Ni-30Fe-27Cr-6.5Mo-0.28N and has a PrEN of 52. This paper presents the mechanical and physical properties of the material and results from corrosion testing. Corrosion results from general corrosion testing in acid environments, together with results from stress corrosion cracking testing in chloride environments and pitting corrosion testing show that UNS N08935 can be used in harsh environments in many applications, e.g. heat exchangers in refinery industry and equipment with seawater cooling. UNS N08935 also has high mechanical strength, and good weldability has been shown using Alloy 59 as filler metal. ©2020 by NACE International.

关键词： Pitting

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Implementing Machine Learning Microservices for Predictive Maintenance of Industrial Assets

Implementing Machine Learning Microservices for Predictive M...

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IEEE International Conference on Consumer Electronics-Taiwan (ICCE-TW)

作者： Antônio M.C. Pereira Mateus O. Silva Andrey r. r. Bessa José E.B.S. Linhares diego A. Amoedo Edma V.C.U. Mattos Agemilson P. Silva Allan C. Brito ruan J.S. Belem rômulo S.F. Jean A.O. Nunes Madson r. Lemos Maura r.A. Costa Waldir S.S. Celso B. Carvalho Federal University of Amazonas and Center for R&D in Elec. and Inf. Tech. (UFAM/CETELI) AM Brazil ENVISION/TPV Group Technology Limited AM Brazil INDT Institute for Technological Development AM Brazil

ISBN: (数字)9798350386844

ISBN: (纸本)9798350386851

In this work, conducted by three partners — UFAM/CETELI, INdT, and Envision (TPV Group) — we present a system comprising machine learning microservices for predicting defects in industrial assets at the ENVISION factory. data collected through sensors installed in the factory’s industrial assets are processed by machine learning models to generate predictions of failures and machine stops, which are then displayed to the user through a front end.

关键词： Microservice architectures Machine learning Predictive models data models Sensor systems Production facilities Sensors

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dual-Polarized Microstrip Antenna with Cross Grid Structure radiating Towards the Edge of the Substrate in the d-Band 19

Dual-Polarized Microstrip Antenna with Cross Grid Structure ...

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19th European Conference on Antennas and Propagation, EuCAP 2025

作者： Hasaba, ryosuke Takahashi, Ken Abe, Tomoki Murata, Tomohiro Nakagawa, Yoichi Takinami, Koji Taneda, Hiroshi Tomura, Takashi Watanabe, Issei Panasonic Industry Co. Ltd. Engineering Division Yokohama Japan Development Center Panasonic System Networks R&d Lab. Co Kanazawa Japan Shinko Electric Industries Co. Ltd. Research & Development Div. Nagano Japan Institute of Science Tokyo Department of Electrical and Electronic Engineering Tokyo Japan Advanced Ict Research Institute National Institute of Information and Communications Technology Tokyo Japan

ISBN: (纸本)9788831299107

This paper proposes a dual-polarized antenna for d-band applications, which radiates in the substrate end direction. The antenna's radiating elements and ground are formed using vias, via lands, and copper foil. The radiating element features a cross-grid design, which combines both cross and grid shapes. This allows for the adjustment of the resonant frequency for each polarization, even under manufacturing rule constraints. The characteristics and operation of a singleelement antenna were demonstrated through simulations. Subsequently, the gain of an 8-element array was compared between measured and calculated values, demonstrating the effectiveness of the proposed antenna. © 2025 European Association on Antennas and Propagation.

关键词： antennas dual-polarization microstrip antenna sub-THz

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