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16th IEEE International conference on Solid-State and Integrated Circuit technology, ICSICT 2022

作者： Kang, Xiaoxu Chu, Zhenghui Liu, Jiwei Zhong, Xiaolan Zhang, Min Zhou, Xiaoqiang Zang, Kaiyan Yu, Jinchen Yang, duanxiang Zhao, Guanyuan Li, Jin Nie, ran Wu, Tao Shanghai Ic R&d Center Process Technology Department Shanghai201210 China Beijing Zhongkexin Electronics Equipment Co. Ltd Beijing200083 China ShanghaiTech University School of Information Science and Technology Shanghai201210 China Shanghai Engineering Research Center of Energy Efficient and Custom Ai Ic China

ISBN: (数字)9781665469067

ISBN: (纸本)9781665469067

In this work, the relationship of sheet resistance (rS) with tilt angle was investigated on a 300mm high current ion implanter. Angle accuracy and tool matching were firstly checked. Then the wafers were implanted with the same species/energy/dose and different tilt angles ranging from -10 degree to +40 degree. After that, all the wafers were annealed under the same process condition. Then rS was measured, and its relationship with tilt angle was studied. It was found that the sensitivity of rS to tilt angle was changed significantly in different tilt angle region. Based on the measured data, potential applications were discussed for the implantation process with different tilt angles. © 2022 IEEE.

关键词： resistance Integrated circuit technology Sensitivity Annealing Current measurement Ions distance measurement

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Fast-settling Onboard Electrochemical Impedance Spectroscopy System Adopting Quasi-linear-phase Band-pass Filter

Fast-settling Onboard Electrochemical Impedance Spectroscopy...

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IEEE Instrumentation and Measurement technology conference

作者： Young-Nam Lee Kyung-Sik Choi Seong-Won Jo Gul rahim Kyeongha Kwon Sang-Gug Lee School of Electrical Engineering Korea Advanced Institute of Science and Technology (KAIST) Daejeon South Korea Daejeon R&D Center Autosilicon Co. Ltd. Daejeon South Korea

Electrochemical impedance spectroscopy (EIS) is a non-invasive tool capable of characterizing batteries' states based on impedance over a specific frequency range. considering that the use of lithium-ion batteries with large capacity in many electric vehicles imposes an extremely high impedance measurement accuracy in a range of sub-mΩ, EIS systems widely use a digital lock-in amplifier (dLIA) that allows ultra-precision impedance measurement at the cost of a long settling time. This work presents an onboard EIS system with further reduced measurement time. In the proposed EIS system, the dLIA embedding of a pair of quasi-linear-phase band-pass filters is utilized to shorten the settling time by widening the bandwidth of the noise suppression low-pass filter with minimum accuracy degradation. compared to the EIS systems using the conventional dLIA, this work achieves a 45% and 57% reduction in the estimated settling time over the frequency range of 1-to-1000 Hz and at the lower bound (1 Hz), respectively.

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A Millimeter-Wave Undersampling receiver with Timing control in 45 nm CMOS-SOI

A Millimeter-Wave Undersampling Receiver with Timing Control...

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Asia-Pacific conference on Microwave

作者： Yoshiaki Morino Yuki Tsukui Takuma Torii Kazutomi Mori Tomoyuki Furuichi Noriharu Suematsu Akihito Hirai Koji Yamanaka Information Technology R&D Center Mitsubishi Electric Corporation Kamakura Kanagawa Japan Kamakura Engineering Office Mitsubishi Electric Engineering Co. Ltd. Kamakura Kanagawa Japan Research Institute of Electrical Communication Tohoku University Sendai Miyagi Japan

ISBN: (数字)9798350363548

ISBN: (纸本)9798350363555

This paper presents a millimeter-wave undersampling receiver with timing control in 45 nm CMOS-SOI. A direct rF undersampling receiver using an S/H mixer is reported to realize a small area and low power consumption. In this architecture, a timing control circuit is required to synchronize the hold period of the S/H mixer with the sample period of an analog-to-digital converter (AdC). The proposed receiver includes a timing control circuit. The timing control circuit enables control of the relative delay time by selecting each output of a 9-stage delay cell. The deviation of the conversion gain is less than 1 dB by adjusting the delay with the timing control. The fabricated receiver achieves the measured conversion gain of more than 9 dB and the measured EVM with 400 MS/s 64QAM of less than 3.0% in a range from 39 to 53 GHz.

关键词： Millimeter wave circuits Microprocessors receivers computer architecture Gain measurement Timing delays Synchronization Gain Mixers

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

SSRN

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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 the Presence of Oncoming-Straight-Ahead Vehicles on the Estimated-Time-required-To-Turn-right at Left-Hand Traffic System - Proposal of an Evaluation Method for right-Turn Behavior Analysis-

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SSrN 2023年

作者： Tanida, Koji Funahashi, Kenji Akimoto, ryota Yamada, Shin-Ichiro Ueda, Yugo Department of Mechanical Engineering Kindai University Osaka Japan Department of Computer Science Nagoya Institute of Technology Aichi Japan Honda R&D Co. Ltd. Tokyo Japan

Making a right turn at left-hand traffic intersections is one of the most difficult situations because of a high casualty rate due to collisions with oncoming-straight-ahead vehicles. It would be effective to stagger the arrival of oncoming-straight-ahead vehicles and the timing of right turns at intersections to prevent accidents during right turns. Therefore, this study focused on the accuracy of estimating the time required to make a right turn. Experimental results suggested that right-turn drivers estimate the right-turn required time shorter due to the presence of oncomingstraight-ahead vehicles. © 2023, The Authors. All rights reserved.

关键词： Vehicles

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research and practice of key technologies for landslide dam development and utilization——A case in Hongshiyan landslide dam Water conservancy Project

River

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river 2023年第3期2卷 251-262页

作者： Zongliang Zhang Xueming Wu Enshang Xiao Ning He Kai Cheng Ga Zhang Xingbo Zhou Chun Zhao Huanling Wang Hongming du Xiangang Jiang PowerChina Kunming Engineering Corporation Limited KunmingChina Sub-Center of High Earthfill/Rockfill Dam National Energy and Hydropower Engineering Technology R&D CenterKunmingChina Sinohydro Foundation Bureau Co. Ltd.TianjingChina Nanjing Water Conservancy Research Institute NanjingChina Tsinghua University BeijingChina Hydro-Power and Water Resources Planning and Design Institute BeijingChina China Institute of Water Resources and Hydropower Research BeijingChina Hohai University NanjingChina Sichuan Agricultural University Dujiangyan Campas DujiangyanChina

Based on the emergency rescue,the subsequent disposal,and the development and utilization projects of the Hongshiyan Landside dam in Ludian,Yunnan,China,research has been conducted on key technical issues facing the development and utilization of landside dams,including the possibilty evaluation of development and utilization,structure analysis of wide gradation material,performance evaluation,investigation and design,dam seepage control,construction technology and equipment,and safe operation *** innovative results has made in all seven aspects mentioned above,writing the history in *** achievements were directly applied to the development planning,investigation and design,construction,and operation and maintenance of the Hongshiyan Landside dam,a comprehensive water conservancy project that integratesflood control,water supply,irrigation,and power generation,with significant comprehensive benefits.

关键词： construction equipment development and utilization investigation and design landside dam performance evaluation safety assessment

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Super-elastic and mechanically durable MXene-based nanocomposite aerogels enabled by interfacial engineering with dual crosslinking strategy

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Nano research 2023年第5期16卷 8025-8035页

作者： Yan Sun Xin Yang ruonan ding Sung Yong Hong Jinwoo Lee Zongfu An Mei Wang Yifei Ma Jae-do Nam Jonghwan Suhr China Copper Institute of Engineering and Technology Chinalco Research Institute of Science and Technology Co.Ltd.Beijing 102200China Center for Composite Materials and Concurrent Design Sungkyunkwan UniversitySuwon 16419Republic of Korea Key Laboratory for Light-weight Materials Nanjing Tech UniversityNanjing 210009China Department of Energy Science Sungkyunkwan UniversitySuwon 16419Republic of Korea MPP PJT.PO R&D Center Polyolefin Business Petrochemicals DivisionLG ChemDaejeon 34122Republic of Korea Department of Polymer Science and Engineering Sungkyunkwan UniversitySuwon 16419Republic of Korea School of Chemical Engineering Sungkyunkwan UniversitySuwon 16419Republic of Korea State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser SpectroscopyCollaborative Innovation Center of Extreme OpticsShanxi UniversityTaiyuan 030006China School of Mechanical Engineering Sungkyunkwan UniversitySuwon 16419Republic of Korea

recently,MXenes have attracted considerable attention owing to their unique physical and chemical *** of MXenes to three-dimensional(3d)porous aerogel structures can play a critical role in realizing the profound implications of MXenes,especially for environmental ***,developing mechanically robust MXene-based aerogels with reversible compressibility under harsh conditions,such as liquid environments,remains challenging due to the insufficient interfacial strength between MXene ***,3d porous MXene-based nanocomposite aerogels are developed by dual physical and chemical crosslinking strategy with poly(vinyl alcohol)and formaldehyde in this *** developed MXenebased nanocomposite aerogels with designed interfacial engineering exhibit outstanding structural stability and extremely high reversible compressibility up to 98%strain as well as unprecedented mechanical durability(2000 cycles at 50%strain)in water ***,the aerogels show adaptable compressibility when exposed to different solvents,which is explained with the Hansen solubility *** to their high compressibility in water,the robust MXene-based aerogels exhibit excellent methylene blue adsorption performance(adsorption capacity of 117.87 mg·g^(−1))and superior recycling efficiency(89.48%at the 3rd cycle).The porous MXene-based nanocomposite aerogels are also demonstrated with outstanding thermal insulation ***,by synergistically taking their porous structure and super elasticity in liquid environment,the MXene-based aerogels show great promise in diverse applications including adsorption and separation,wastewater purification desalination,and thermal management.

关键词： MXenes-based nanocomposite aerogels dual crosslinking strategy reversible compressibility methylene blue adsorption thermal insulation

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Experimental research on the Proton Exchange Membrane Fuel Cell Waste Heat recovery System

Experimental Research on the Proton Exchange Membrane Fuel C...

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IEEE International conference on Power and Power and renewable Energy (ICPrE)

作者： Hao Wang Guoxin Yu Yongkang Liu Jing Li Liangran Li Nan Lv rui You College of Electrical Engineering Qingdao University Qingdao China State Key Laboratory of Digital Household Appliances Qingdao Haier Smart Technology R&D Co. Ltd Qingdao China

The proton exchange membrane fuel cell combined heat and power (PEMFC-CHP) system can exploit the thermal energy and the electrical energy simultaneously, and the comprehensive utilization of energy efficiency is improved. The PEMFC-CHP system is considered as a promising low-carbon technology. due to the strict requirements on the use and storage of the hydrogen, most of the current research on the PEMFC-CHP system is based on the simulation, and the experimental validation of the research on the waste heat recovery in the PEMFC-CHP system is limited. Therefore, a simulation experiment platform of the PEMFC waste heat recovery system is proposed in this paper. The PEMFC output characteristics and the thermal management methodology are analyzed. A control strategy of the PEMFC waste heat recovery system is proposed. Finally, the effectiveness of the control strategy is validated on the simulation experiment platform built.

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30–50 Grz S/H Mixer with LO duty Cycle control in 22 nm Fd-SOI CMOS

30–50 GRz S/H Mixer with LO Duty Cycle Control in 22 nm FD-...

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Asia-Pacific conference on Microwave

作者： Akihito Hirai Yuki Tsukui Takuma Torii Kazutomi Mori Tomoyuki Furuichi Noriharu Suematsu Yoshiaki Morino Koji Yamanaka Information Technology R&D Center Mitsubishi Electric Corporation Kamakura Kanagawa Japan Kamakura Engineering Office Mitsubishi Electric Engineering Co. Ltd. Kamakura Kanagawa Japan Research Institute of Electrical Communication Tohoku University Sendai Miyagi Japan

ISBN: (数字)9798350363548

ISBN: (纸本)9798350363555

A millimeter-wave sample and hold (S/H) mixer with LO duty cycle control is developed using 22 nm Fd-SOI CMOS technology. A direct rF undersampling receiver using an S/H mixer has been reported to achieve a small area and low power consumption. In this architecture, a timing control circuit is required to synchronize the hold period of the S/H mixer with the sample period of an analog-to-digital converter (AdC). The proposed S/H mixer allows the adjustment of the LO duty cycle by varying the gate bias voltage of LO buffers, which mitigates the resolution of the timing control circuit. The fabricated S/H mixer achieves a measured conversion gain of greater than -15 dB and measured EVM of <2 % for 400 MS/s 64QAM in the 33–51 GHz range.

关键词： radio frequency receivers Logic gates Gain measurement CMOS technology Inverters Synchronization Voltage control Mixers Gain

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Application of TPE-random Forest in Microwave Oven Fault diagnosis Based on GAN and AdASYN Algorithm

Application of TPE-Random Forest in Microwave Oven Fault Dia...

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International Symposium on Multidisciplinary Studies and Innovative Technologies (ISMSIT)

作者： Jianqi Liu Bi Zeng Feng Li Huiting Hu School of Computer Science and Technology Guangdong University of Technology Guangzhou China Dept. Microwave oven R&D Department Guangdong Galanz Appliances Manufacturing Co. Ltd. Zhongshan China College of Information Science and Technology Zhongkai University of Agriculture and Engineering Guangzhou China

ISBN: (数字)9798350354423

ISBN: (纸本)9798350354430

The utilization of data-centric machine learning methodologies has gained significance within the domain of microwave oven fault diagnosis. conventional fault diagnosis approaches that rely on mechanism analysis demonstrate limited adaptability to various fault scenarios and environmental conditions. Moreover, the distribution frequency of different faults in the data sets collected from factories is severely imbalanced. This paper introduces a TPE-random Forest fault diagnosis approach, which integrates the Generative Adversarial Network (GAN) and Adaptive Synthetic Sampling (AdASYN) algorithm. The combination of GAN with AdASYN aims to mitigate biases present in data generated solely by AdASYN with improving the feasibility and variety of the data generated and effectively addressing imbalanced data issues within dataset. Specifically, the AdASYN-generated samples from minority classes are utilized to train the GAN network, replacing the random noise generator typically employed in GAN networks. Subsequently, a set number of samples are produced using the refined generator within the GAN framework to achieve class equilibrium. Ultimately, the created data is utilized for training of the random forest model, with optimization of its hyperparameters carried out through the TPE optimization algorithm. Experiments confirm the approach we proposed attains an F1 score of 92.59% on the microwave oven fault diagnosis dataset, surpassing alternative algorithms like SVM, MLP, KNN, and LGBM.

关键词： Fault diagnosis Training Microwave technology Visualization Accuracy Microwave ovens Forestry Generative adversarial networks Feature extraction Optimization

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