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IEEE Transactions on Intelligent Vehicles 2024年第8期9卷 5272-5283页

作者： Jinwoo Ha Sesun You Young-jin Ko Wonhee Kim Department of Energy Systems Engineering Chung-Ang University Seoul South Korea Department of Electrical Energy Engineering Keimyung University Daegu South Korea Flying Car R&D Center Korea Automotive Technology Institute Jeonnam South Korea School of Energy Systems Engineering Chung-Ang University Seoul South Korea

In this paper, we propose an extremum seeking-based algorithm using fuzzy logic for maximizing the braking friction force in anti-lock brake systems (ABSs) without relying on vehicle speed information and slip ratio dynamics. Many current ABSs algorithms utilize slip ratio as a control parameter. If the slip ratio is inaccurately measured, the braking performance of the ABSs may not be optimal. To address this, we propose a method to achieve maximum friction force by designing a reference generator that generates the control inputs for the ABSs without requiring slip ratio information. We design an extended state observer that can estimate the braking friction force and braking friction coefficient. Based on the estimated friction force, the desired wheel cylinder pressure (WCP), which is the control input of the hydraulic brake system, is generated to converge to the maximum friction force using the extremum seeking control algorithm. To achieve improved braking performance, the initial desired WCP is calculated using fuzzy logic for quick convergence to the optimal region. The proposed method is experimentally validated using a hardware-in-the-loop simulation, which includes components such as MATLAB/Simulink, CarSim, SCALEXIO real-time system, and a hydraulic brake system.

关键词： Friction Force Wheels Vehicle dynamics roads Heuristic algorithms Brakes

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Sustainable catalytic strategies for methyl methacrylate synthesis: Mechanistic-guided design of high-efficiency catalysts

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Materials Today Chemistry 2025年 46卷

作者： Yue, Yifan Wang, Baohe Wang, Aiping Zhu, Qianwen Zhao, Fuying Zhang, Zhaobang Geng, Zhongfeng Ma, Jing Key Laboratory for Green Chemical Technology of Ministry of Education R&D Center for Petrochemical Technology Tianjin University Tianjin300072 China School of Energy and Chemical Engineering Tianjin Renai College Tianjin301636 China Technology Center China Tobacco Henan Industrial Co. Ltd. Zhengzhou450000 China

Methyl methacrylate (MMA) is a significant chemical raw material with various applications. The main industrial production processes are the acetone cyanohydrin (ACH) process and the isobutene process. The former suffers from toxic feedstocks, while the latter highly depends on oil. A viable alternative is using low-toxicity and abundant ethylene or methyl acetate as a raw material. This review examines the development of catalysts in the ethylene (C2) and methyl acetate processes. In these green processes, aldol condensation is a key reaction, which is crucial in organic synthesis for the formation of C–C bonds in carbonyl compounds. However, there is currently no research that systematically reports on the catalysts used in aldol condensation within these processes. Here, we discuss the catalytic mechanism of aldol condensation. Furthermore, the effects of key factors on the acid/base catalysts used in aldol condensation are systematically elucidated, including acid-base cooperative interactions, structural integrity, and active sites distribution. Additionally, the methods that enhance catalytic activity and stability through modification are discussed. We aim to propose a comprehensive paradigm for the rational design and optimization toward sustainable catalytic systems. © 2025 Elsevier Ltd

关键词： Acetone

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Optimization design method of optical encoders based on cascaded half-integer MMIs 29

Optimization design method of optical encoders based on casc...

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29th Opto-Electronics and Communications Conference, OECC 2024

作者： Zhong, Meilin Chen, Yu Cao, Wei Liu, Shenghao Sun, Xu Liu, Gordon Ning Soochow University School of Electronic and Information Engineering Suzhou215006 China CreaLights Technology Co. Ltd. Silicon Photonics R&d Center Suzhou215124 China Soochow University Jiangsu New Optical Fiber Technology and Communication Network Engineering Research Center School of Electronic and Information Engineering Suzhou215006 China

ISBN: (纸本)9798350308396

An automated method is proposed to optimize a compact optical encoder based on half-integer multimode interferometers (MMIs). We employ the improved particle swarm optimization (PSO) algorithm to reconfigure the phase shifters. Good convergence and robustness are demonstrated by applying the method into the switch of encoding states under fabrication errors. © 2024 IEEE.

关键词： Particle swarm optimization (PSO)

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Method for creating privacy-preserving information using Probabilistic Latent Semantic Analysis

Method for creating privacy-preserving information using Pro...

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2023 IEEE International Conference on Big data, Bigdata 2023

作者： Sugawara, Yuki Sakurai, Eiichi Motomura, Yoichi Okada, Yukihiko Tanabe, Kai Tsukao, Akiko Kuno, Shinya National Institute of Advanced Industrial Science and Technology Koto Japan University of Tsukuba Tsukuba Japan National Institute of Advanced Industrial Science and Technology Artificial Intelligence Research Center Koto Japan Institute of Systems and Information Engineering Center for Artificial Intelligence Research University of Tsukuba Tsukuba Japan University of Tsukuba Faculty of Health and Sport Sciences R&d Center for Smart Wellness City Policies Tsukuba Japan Tsukuba Wellness Research Co. Ltd Kashiwa Japan

ISBN: (纸本)9798350324457

In recent years, rapid digitization and technological advances have enabled governments and companies to utilize various types of personal information, including environment, medical, and lifestyle. Privacy protection is an important issue in the utilization of personal information, and anonymization methods such as k-anonymization and 1-diversity have been proposed in the past. However, to utilize data effectively, it is also important not to lose the usefulness of the information. Privacy protection and preserving the usefulness of information are in a trade-off relationship, and balancing these two aspects has been a difficult problem. recently, microaggregation using clustering algorithms has been attracting attention as an anonymization method that ensures the usefulness of the data while protecting privacy. In this study, we proposed a new microaggregation method based on iterative processing using probabilistic latent semantic analysis and evaluated the proposed method based on the use case. The use case is a classification of social isolation and an analysis of the relationship with physical frailty risk using the classified groups. Compared to microaggregation using quasi-identifiers and microaggregation based on a conventional clustering algorithm, the proposed method was able to find social isolation characteristics obtained in the raw data with higher accuracy. In addition, in a more detailed analysis focusing on a population with certain characteristics, the proposed method was able to replicate the analysis results obtained using the raw data and to make appropriate assessments of the health risks. © 2023 IEEE.

关键词： microaggregation privacy-preserving Probabilistic Latent Semantic Analysis

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Experimental Study of Wavelet-OFdM radio Communication System for AUVs Under Seawater

Experimental Study of Wavelet-OFDM Radio Communication Syste...

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European Conference on Antennas and Propagation, EuCAP

作者： ryosuke Hasaba Kazuhiro Eguchi Toshiyuki Wakisaka Hiroshi Satoh Jiro Hirokawa Miyuki Hirose Tohlu Matsushima Yuki Fukumoto Yuya Nishida Kazuo Ishii Department of Electrical and Electronic Engineering Tokyo Institute of Technology Tokyo Japan Department of Electrical and Electronic Engineering Kyushu Institute of Technology Fukuoka Japan R&D Division Panasonic Connect Co. Ltd. Fukuoka Japan Development Center Panasonic System Networks R&D Lab. Co. Yokohama Japan

AUVs are used for marine resource exploration, and although acoustic, laser, etc., are often used for wireless communication for AUVs, wireless communication using rF signals is being studied. By placing the VNA in a waterproof container, we measured the insertion loss between the antennas under seawater and obtained good results with simulation results. Furthermore, using a Wavelet-OFdM module as the communication method, a maximum communication speed of 6.8 Mbps was achieved with the antennas embedded in the AUV immersed in seawater.

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An Extensive Study of the Effects of Packaging Structure and Material Properties on reliability of Advanced Packages by Charactering the Stress Singularities at Interface Corners

An Extensive Study of the Effects of Packaging Structure and...

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Electronics Packaging technology Conference (EPTC)

作者： Guang-Chao Lyu Bin Chen Xin-Ping Zhang Min-Bo Zhou Chang-Bo Ke Yiu-Wing Mai School of Materials Science and Engineering and Guangdong Provincial Engineering Technology R&D Center of Electronic Packaging Materials and Reliability South China University of Technology Guangzhou China Department of Mechanical Engineering The Hong Kong Polytechnic University Hong Kong

This paper presents a new approach to acquiring in-plane solutions for the stress singularities at internal junctions where multiple elastic isotropic materials meet, and then establishing the correlation between the singular stress field and the failure of electronic package structures. Extensive analyses have been conducted on the order of the stress singularities in relation to the material properties and interface angles, which address an important yet controversial issue regarding the utilization of the stress singularity for electronic package reliability assessment. The results obtained through calculating the stress singularity orders are further validated using finite element analyses. The basic findings indicate that the analyses of the singularity order can serve as an initial approach to evaluate structural design and system reliability. However, relying solely on the calculations of the stress singularity order is insufficient when exploring the variations in material parameters. despite that, the calculations of the order of stress singularity still provide valuable guidance for electronic package design and help develop more robust and reliable packaging solutions for integrated circuit devices.

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Macro Modeling of High Frequency dielectric Barrier discharge

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IEEJ Transactions on Fundamentals and Materials 2022年第3期142卷 52-58页

作者： Tamida, Taichiro Iwabuki, Hiroyasu Iwata, Akihiko Department of Electrical and Electronic Engineering Faculty of Engineering Osaka Electro-Communication University 18-8 Hatsu-cho Neyagawa572-8530 Japan Advanced Technology R&D Center Mitsubishi Electric Corp. 8-1-1 Tsukaguchi-Honmachi Amagasaki661-8661 Japan Department of Electronics Information and Communication Engineerng Osaka Sangyo University 3-1-1 Nakagaito Daito574-8530 Japan

We have developed a macro model that focuses only on electrical characteristics to handle the discharge phenomenon as a circuit. We considered the discharge as a kind of non-equilibrium system and modeled the transient changes in the discharge impedance. We also examined how to fix these model parameters from measurable values. We applied it to the high frequency dielectric barrier discharge and obtain sufficient agreement with the measurement results. We think that this model can be applied, not only to discharge phenomena but also as a method for circuit-modeling a general physical phenomenon in which the state changes transiently in a non-equilibrium system. © 2022 The Institute of Electrical Engineers of Japan.

关键词： dielectric barrier discharge

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Multi-Molar Absorption of Co2 by a Novel dual-Functionalized Ionic Liquid: Experimental and dft Mechanistic Study

SSRN

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SSrN 2023年

作者： Ma, Jing Zhou, Yamei du, Yaxuan Wang, Xiejun Zhu, Mingxuan Wang, Baohe Key Laboratory for Green Chemical Technology of Ministry of Education R&D Center for Petrochemical Technology Tianjin University Tianjin300072 China Collaborative Innovation Center of Chemical Science and Engineering Tianjin University Tianjin300072 China

As green absorbents of CO2, the viscosity and absorption capacity of task-specific ionic liquids (TSILs) determine their absorption properties. Based on the precise design strategy of both anion and cation absorption, a dual-functionalizedprotic IL diethylenetriamine methylurea ([dETAH][MEUr]) for trapping CO2 was successfully synthesized. The absorption and regeneration properties of the ILs solution were tested, and the changes in the physical properties of ILs before and after CO2 absorption were compared. The experimental results showed that the [dETAH][MEUr] solution had relatively low viscosity, excellent absorption property with 2.05 mol CO2/mol IL at 40 ℃ and 0.5 mol/L concentration, and its regeneration efficiencies still kept above 90.09% after five cycles. In addition, the mechanism of the absorption reaction was explored by combining Fourier transform infrared (FT-Ir) spectroscopy, carbon nuclear magnetic resonance (13C NMr) spectroscopy, and density functional theory (dFT) calculation methods. It shows that in [dETAH][MEUr] solution, the N atom losing proton (-NH) in the anion is the main absorption site, and the primary amine (-NH2 ) in the protonated cation [dETAH]+ of secondary amine is used as an auxiliary cooperative trapping CO2. Hopefully, this work can provide a new way for the research and development of green CO2 absorbents. © 2023, The Authors. All rights reserved.

关键词： Carbon dioxide

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Sequentially Pruning Phase rebalance Schedule: Load Profile Learning Approach

Sequentially Pruning Phase Rebalance Schedule: Load Profile ...

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IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)

作者： Miroslav Kosanic Hongbo Sun Shunsuke Kawano Arvind raghunathan Shoichi Kitamura Dept. of Electrical Engineering Massachusetts Institute of Technology Cambridge MA USA Optimization and Intelligent Robotics Mitsubishi Electric Research Labs Cambridge MA USA Advanced R&D Technology Center Mitsubishi Electric Corporation Amagasaki Japan

ISBN: (数字)9798350390421

ISBN: (纸本)9798350390438

As low-voltage (LV) distribution networks evolve with the rise of prosumer behavior, traditional reactive load management strategies fall short of addressing the voltage phase imbalances caused by unpredictable load variations. Voltage imbalances pose significant risks including inefficiency, power outages, and equipment failures. Existing optimization solutions lack the adaptability to address this problem extensively with such dynamic environments due to the computational time budget limit. In response, this paper presents a novel method utilizing an Imitation Learning (IL) framework implemented through Ensemble random Forests to prune the process of sequential load phase swapping, previously determined by solely running at all times costly multi-objective optimization. We maximize classifier recall performance to ensure reliable pruning. Tested across various Solar Photovoltaic (PV) penetration levels (30-100%) on a standard 13-bus LV test feeder, our method demonstrates substantial improvements in mitigating voltage imbalance, reducing operational costs, and decreasing feeder testing time by 83%. This marks a significant step forward in smart grid technology, offering utilities a robust tool to enhance system reliability with considerable time efficiency.

关键词： Schedules Europe Stochastic processes Voltage Load management Smart grids reliability Optimization Load modeling Testing

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Proposed integrated control mechanisms between computing and network resources by online monitoring

Proposed integrated control mechanisms between computing and...

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2025 IEEE International Conference on Consumer Electronics, ICCE 2025

作者： Hatanaka, Yuuki Yokotani, Tetsuya Suehiro, Takeshi Nakura, Kenichi Tani, Shigenori Kozaki, Seiji Yokotani, Atsuko Mineno, Hiroshi Graduate School of Engineering Kanazawa Institute of Technology Ishikawa Nonoichi Japan College of Engineering Kanazawa Institute of Technology Ishikawa Nonoichi Japan Information Technology R&D Center Mitsubishi Electric Corporation Kanagawa Kamakura Japan Communication System Enginnering Center Mitsubishi Electric Corporation Chiyoda Tokyo Japan Graduate School of Science and Technology Shizuoka University Shizuoka Hamamatsu Japan

ISBN: (纸本)9798331521165

In the IoT mature stage, a huge number of devices are deployed in various fields. Particularly, in consumer electronics fields, various purpose devices are deployed, e.g., for energy management, crime prevention, monitoring home electric appliances, etc. In this situation, these devices are associated with servers through heterogenous networks. Conventionally, the architectures for distribution processing have been discussed actively. e.g., Common Object request Broker Architecture (COrBA). However, these architectures did not consider transfer network types and their resources. This paper proposes the architecture of resource management, considering networking and computing resources to connect massive number of devices and servers. It proposes a framework of the architecture and mechanisms for enabling architecture. Then, it describes a use case based on this architecture, and discusses its implementation. © 2025 IEEE.

关键词： resource allocation

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