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Development of (Bi0.5L 0.5)(Fe0.7Co0.3)O3 (L =La, Nd, Sm, Gd, Dy) Thin Films with Excellent Magnetic Properties for Magnetic Device Application

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International Journal of the Society of Material engineering for Resources 2022年第2期25卷 174-178页

作者： Ratha, Soumyaranjan Yamamoto, Daichi Takeda, Kotaro Kuppan, Munusamy Egawa, Genta Yoshimura, Satoru Department of Materials Science Materials Science and Engineering Course Graduate School of Engineering Science Akita University Akita010-8502 Japan Center for Regional Revitalization in Research and Education Akita University Akita010-8502 Japan Research Center of Advanced Materials for Breakthrough Technology Graduate School of Engineering Science Akita University Akita010-8502 Japan

(Bi0.5L0.5)(Fe0.7Co0.3)O3 (L = La, Nd, Sm, Gd, Dy) thin fi lms with ferromagnetism and ferroelectricity were fabricated using pulsed DC sputtering technique to obtain high saturation magnetization, perpendicular magnetic anisotropy and large magnetic Kerr effect. These magnetic properties are very important for realization of high performance magnetic devices driven by electric field. All (Bi0.5L0.5)(Fe0.7Co0.3)O3 (L = La, Nd, Sm, Gd, Dy) thin fi lms had relatively high saturation magnetization, perpendicular magnetic anisotropy and magnetic Kerr eff ect. Especially, (Bi0.5Nd0.5)(Fe0.7Co0.3)O3 thin fi lm had a very high saturation magnetization of 140 emu/cm3 (1.40×105 A/m), a high perpendicular magnetic anisotropy of 2.6 at ratio of perpendicular coercivity against in-plane coercivity and (Bi0.5La0.5)(Fe0.7Co0.3)O3 thin fi lm had a very high magnetic Kerr rotation angle of 0.72°. These magnetic properties were excellent compared with the case of (Bi0.5A0.5)FeO3 (A = Ca, Sr, Ba) thin fi lms with the maximum value of 90 emu/cm3 (9.0×104 A/m) (for saturation magnetization), 0.8 (for ratio of Perpendicular coercivity against in-plane coercivity) and 0.03° (for magnetic Kerr rotation angle) which were fabricated previously. These magnetic properties are very important for realization of high performance magnetic devices driven by electric fi eld. © 2022 Soc. Mater. Eng. Resour. Japan.

关键词： Magnetic anisotropy

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CaT: A Category-oriented Transformer for Text and Sentiment Analysis in Japanese Hotel Overall Ratings Prediction

CaT: A Category-oriented Transformer for Text and Sentiment ...

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International Symposium on Computing and Networking (CANDAR)

作者： Zaku Kusunoki Shuai Jiang Shengzhe Hou Sayaka Kamei Yasuhiko Morimoto Graduate School of Advanced Science and Engineering Hiroshima University Japan College of Computer Science and Engineering Shandong University of Science and Technology China

ISBN: (数字)9798331528362

ISBN: (纸本)9798331528379

Guest reviews on hotel booking websites typically include textual comments and numerical ratings. However, missing ratings and inconsistencies between textual comments and numerical ratings often confuse site users. Consequently, extracting a comprehensive numerical score from textual reviews has become critical. Specifically, inconsistency problems with hotel online ratings in the Japanese context have not been studied well. We proposed a data-driven method utilizing CSPD (Category-oriented Sentiment Polarity Dictionaries), which is automatically edited for each category using the review database from Rakuten Travel in Japanese. For each token in the review, the text features are first learned using BERT, while the sentiment features are learned by assigning sentiment polarity values from CSPD via an encoder. These outputs are then input into a transformer to learn the interaction between text and sentiment features. Our method predicts the comprehensive evaluation based on the interaction learned between these features. We conducted evaluation experiments using the Rakuten Travel review dataset from 2014 to 2019. The results of the experiments showed that our method achieved higher accuracy than methods that learn only text features, demonstrating the effectiveness of using sentiment features as auxiliary information in deep learning. The ablation experiment also proves the effectiveness of each module of the model.

关键词： Deep learning Sentiment analysis Analytical models Dictionaries Reviews Fuses Knowledge graphs Predictive models Feature extraction Transformers

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Proton storage chemistry in aqueous zinc-organic batteries:A review

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InfoMat 2023年第2期5卷 45-65页

作者： Xianming Deng James Kumankuma Sarpong Guobin Zhang Jing Hao Xu Zhao Linyuan Li Hongfei Li Cuiping Han Baohua Li Shenzhen Key Laboratory of Power Battery Safety and Shenzhen Geim Graphene Center Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhenPeople's Republic of China School of System Design and Intelligent Manufacturing Southern University of Science and TechnologyShenzhenGuangdongPeople's Republic of China Faculty of Materials Science and Energy Engineering Institute of Technology for Carbon NeutralityShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenPeople's Republic of China Shenzhen Key Laboratory of Energy Materials for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenPeople's Republic of China

Benefiting from the advantageous features of structural diversity and resource renewability,organic electroactive compounds are considered as attractive cathode materials for aqueous Zn-ion batteries(ZIBs).In this review,we discuss the recent developments of organic electrode materials for aqueous *** the proton(H^(+))storage chemistry in aqueous Zn-organic batteries has triggered an overwhelming literature surge in recent years,this topic remains ***,our review focuses on this significant issue and summarizes the reported electrochemical mechanisms,including pure Zn^(2+)intercalation,pure H^(+)storage,and H^(+)/Zn^(2+)***,the impact of H^(+)storage on the electrochemical performance of aqueous ZIBs is discussed *** the significance of H^(+)storage,we also highlight the relevant characterization methods ***,perspectives and directions on further understanding the charge storage mechanisms of organic materials are *** hope that this review will stimulate more attention on the H^(+)storage chemistry of organic electrode materials to advance our understanding and further its application.

关键词： aqueous zinc-ion batteries H^(+)/Zn^(2+)co-storage organic electrode materials proton storage chemistry

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Analysis of Rehabilitation Methods for Small Dogs Based on the Muscular Activity 32

Analysis of Rehabilitation Methods for Small Dogs Based on t...

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32nd IEEE International Symposium on Industrial Electronics, ISIE 2023

作者： Chugo, Daisuke Li, Yujie Muramatsu, Satoshi Yokota, Sho She, Jin-Hua Hashimoto, Hiroshi Kamishina, Hiroaki Hirabayashi, Hiroyuki Kwansei Gakuin University Graduate School of Science and Technology Hyogo Sanda Japan Tokai University School of Information Science and Technology Kanagawa Hiratsuka Japan Toyo University Faculty of Science and Engineering Saitama Kawagoe Japan Tokyo University of Technology School of Engineering Tokyo Hachioji Japan Advanced Institute of Industrial Technology Master Program of Innovation for Design and Engineering Tokyo Shinagawa Japan KyotoAR Animal Advanced Medical Center Kuse Kyoto Japan Sakura Animal Hospital Aichi Yatomi Japan

ISBN: (纸本)9798350399714

In recent years, with the increase in the number of dogs, paralysis of the lower limbs due to herniated discs in dogs has become a problem. There is no fundamental cure for this condition, and the main treatment is physical therapy. Usually, these dogs need physical therapy with a physical therapist every day, but it's not realistic. Therefore, it is required that the owner be effective rehabilitation at home. However, quantitative evaluation methods have not been established for physiotherapy because physiotherapy is performed by veterinarians based on their experience. In this paper, we proposes a musculoskeletal model of the dog's lower limb to analyze the dynamics of rehabilitation movements and confirm its validity by comparing the muscular activity obtained from the model with the measured EMG data. Using proposed model, we performed a simulation experiment to discuss the relationship between the timing of the input force and muscular activity by changing the timing of the input force. From the data obtained in the experiment, we investigated the relationship between the timing of the input force and the muscular activity and clarify how to input a support force for the physical therapy. © 2023 IEEE.

关键词： Physical therapy

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Nonalloyed α-phase formamidinium lead triiodide solar cells through iodine intercalation

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Journal of Bio-X Research 2025年第6731期387卷 284-290页

作者： Zhang, Yu Chen, Yanrun Liu, Guilin Wu, Yuetong Guo, Zhenyu Fan, Rundong Li, Kailin Liu, Huifen Zhao, Yepin Kodalle, Tim Chen, Yihua Zhu, Cheng Bai, Yang Chen, Qi Zhou, Huanping Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials Key Laboratory of Polymer Chemistry and Physics of Ministry of Education School of Materials Science and Engineering Peking University Beijing China School of Science Jiangnan University Wuxi Jiangsu China Department of Materials Science and Engineering University of California Los Angeles Los Angeles CA United States Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA United States Advanced Light Source Lawrence Berkeley National Laboratory Berkeley CA United States Materials Science Division Lawrence Berkeley National Laboratory Berkeley CA United States School of Materials Science and Engineering Beijing Institute of Technology Beijing China Peking University Beijing China Southwest United Graduate School Kunming China

Formamidinium lead triiodide (FAPbI3) is considered the most promising composition for high-performing single-junction solar cells. However, nonalloyed α-FAPbI3 is metastable with respect to the photoinactive d-phase. We have developed a kinetic modulation strategy to fabricate high-quality and stable nonalloyed α-FAPbI3 films, assisted by cogenetic volatile iodine intercalation and decalation. The intercalation of iodine facilitated the formation of corner-sharing Pb-I framework building blocks and reduced the kinetic barrier for α-FAPbI3 formation, whereas the iodine decalation improved the final perovskite film quality in terms of composition purity and overall homogeneity. Solar cells based on this nonalloyed α-FAPbI3 (free of other extrinsic composition ions) achieved a power conversion efficiency of >24%. The devices also exhibited excellent durability, retaining 99% of their original power conversion efficiency after operating for more than 1100 hours at 85° ± 5°C under illumination. © 2025 American Association for the Advancement of science. All rights reserved.

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Development of an e-Learning Motivation Index 15th

Development of an e-Learning Motivation Index

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15th International Conference on Computer science and its Applications, CSA 2023 and 17th KIPS International Conference on Ubiquitous Information Technologies and Applications, CUTE 2023

作者： Park, JungHyun Park, Ji Su Shon, Jin Gon Advanced Convergence Technology Laboratory Korea National Open University Seoul Korea Republic of Department of Computer Science and Engineering Jeonju University Jeonju-si Korea Republic of Department of Computer Science Graduate School National Open University Seoul Korea Republic of

ISBN: (纸本)9789819724468

Motivation is the driving force to initiate and sustain learner participation in e-Learning environment. Since identifying the extent of motivation is important, this study aims to develop an e-Learning Motivation Index that quantitatively measures motivation concisely and intuitively, capturing the different impact of factors on learner participation. Index development starts with the General Function Establishment. Grounded in the Expectancy-Value Theory and the Self-Regulated Learning Theory, learning motivation is defined as value, cost, cognitive regulation, and scheduling. These act as motivational factors impacting on learner participation, defined in the General Function. Measures for independent and dependent variables are designed to utilize a survey and an experiment on MoodleCloud. After an experiment, analysis using SPSS provides the result that value and scheduling are two factors that significantly impact learner participation. The more learners value learning and have scheduling skills, the more they participate in e-Learning. These results were expressed in a regression function and normalized to derive an e-Learning Motivation Index. This index can assist learners in building learning strategies and educational providers in providing tailored strategies for learners’ characteristics to promote learner participation. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Contrastive Learning

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Coaxial Wet Spinning of Boron Nitride Nanosheet‑Based Composite Fibers with Enhanced Thermal Conductivity and Mechanical Strength

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Nano-Micro Letters 2024年第2期16卷 126-138页

作者： Wenjiang Lu Qixuan Deng Minsu Liu Baofu Ding Zhiyuan Xiong Ling Qiu Tsinghua Shenzhen International Graduate School(TSIGS) Tsinghua UniversityShenzhen 518055People’s Republic of China Monash Suzhou Research Institute(MSRI) Monash UniversitySuzhou 215000People’s Republic of China Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055People’s Republic of China Shenzhen Key Laboratory of Energy Materials for Carbon Neutrality Shenzhen 518055People’s Republic of China School of Light Industry and Engineering South China University of TechnologyGuangzhou 510614People’s Republic of China

Hexagonal boron nitride nanosheets(BNNSs)exhibit remarkable thermal and dielectric ***,their self-assembly and alignment in macroscopic forms remain challenging due to the chemical inertness of boron nitride,thereby limiting their performance in applications such as thermal *** this study,we present a coaxial wet spinning approach for the fabrication of BNNSs/polymer composite fibers with high nanosheet *** composite fibers were prepared using a superacid-based solvent system and showed a layered structure comprising an aramid core and an aramid/BNNSs ***,the coaxial fibers exhibited significantly higher BNNSs alignment compared to uniaxial aramid/BNNSs fibers,primarily due to the additional compressive forces exerted at the core-sheath interface during the hot drawing *** a BNNSs loading of 60 wt%,the resulting coaxial fibers showed exceptional properties,including an ultrahigh Herman orientation parameter of 0.81,thermal conductivity of 17.2 W m^(-1)K^(-1),and tensile strength of 192.5 *** results surpassed those of uniaxial fibers and previously reported BNNSs composite fibers,making them highly suitable for applications such as wearable thermal management *** findings present a promising strategy for fabricating high-performance composite fibers based on BNNSs.

关键词： Boron nitride nanosheets Coaxial fiber Interfacial compression Nanosheet aligning Wearable thermal management

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A HAZARD-BASED DURATION MODEL TO QUANTIFY THE IMPACT OF WORK RELATED DISTRACTION ON TAXI DRIVERS’ SAFETY PERFORMANCE: A DRIVING SIMULATOR STUDY 27

A HAZARD-BASED DURATION MODEL TO QUANTIFY THE IMPACT OF WORK...

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27th International Conference of Hong Kong Society for Transportation Studies: Transport and Equity, HKSTS 2023

作者： Chen, Tiantian Ye, Shi Oviedo-Trespalacios, Oscar Sze, N.N. Cho Chun Shik Graduate School of Mobility Korea Advanced Institute of Science and Technology Korea Republic of School of Technology Policy and Management Delft University of Technology Netherlands Department of Civil and Environmental Engineering The Hong Kong Polytechnic University Hong Kong

ISBN: (纸本)9789881581518

With the increasing use of ride-hailing apps, concerns have arisen regarding road safety and driver distraction. Despite the recognized safety risks of driver distraction, limited research has explored how distractions from various ride-hailing systems affect drivers in the taxi industry. The research utilized a driving simulator experiment involving 51 taxi drivers in two road environments (urban street and motorway) and three distracted driving conditions (no distraction, auditory distraction via radio dispatching system, and visual-manual distraction via mobile application). A car-following scenario with sudden brake events was incorporated into the experiments. The collected performance indicators include brake reaction time (BRT), time headway (THW), and car-following distance (CFD). The random parameters Weibull accelerated failure time (AFT) model was applied to model the duration data under different road conditions. The results indicate that although taxi drivers show longer BRT when distracted by mobile app and radio system, this does not necessarily equate with greater risk or reduced safety performance since they compensate for the risk of rear-end crashes by maintaining a longer THW. In general, taxi drivers' BRT and THW are more profoundly affected by mobile apps than by radio systems when distracted in both urban and motorway scenarios. In addition, significant interaction effects revealed the observed heterogeneity, which suggests that drivers' personal characteristics influence the relationship between distraction type and driving performance. This research provides valuable insights for designing safer ride-hailing systems and implementing effective driver training and management systems for transport operators. Copyright © 2023 Hong Kong Society for Transportation Studies Limited.

关键词： Brakes

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MmWave extra-large-scale MIMO based active user detection and channel estimation for high-speed railway communications

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High-Speed Railway 2023年第1期1卷 31-36页

作者： Anwen Liao Ruiqi Wang Yikun Mei Ziwei Wan Shicong Liu Zhen Gao Hua Wang Hao Yin Nanjing Research Institute of Electronics Technology Nanjing 210039China School of Information and Electronics Beijing Institute of TechnologyBeijing 100081China Advanced Research Insttute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China Insttute of China Electronic System Engineering Corporation Beijing 100141China

The current High-Speed Railway(HSR)communications increasingly fail to satisfy the massive access services of numerous user equipment brought by the increasing number of people traveling by *** this end,this paper investigates millimeter-Wave(mmWave)extra-large scale(XL)-MIMO-based massive Internet-of-Things(loT)access in near-field HSR communications,and proposes a block simultaneous orthogonal matching pursuit(B-SOMP)-based Active User Detection(AUD)and Channel Estimation(CE)scheme by exploiting the spatial block sparsity of the XLMIMO-based massive access ***,we first model the uplink mmWave XL-MIMO channels,which exhibit the near-field propagation characteristics of electromagnetic signals and the spatial non-stationarity of mmWave XL-MIMO *** exploiting the spatial block sparsity and common frequency-domain sparsity pattern of massive access channels,the joint AUD and CE problem can be then formulated as a Multiple Measurement Vectors Compressive Sensing(MIMV-CS)*** on the designed sensing matrix,a B-SOMP algorithm is proposed to achieve joint AUD and ***,simulation results show that the proposed solution can obtain a better AUD and CE performance than the conventional CS-based scheme for massive IoT access in near-field HSR communications.

关键词： High-speed railway communications Massive access Activeuser detection Channel estimation Millimeter-wave extra-large scale MIMO Near-field spatial non-stationarity

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An Analytical Model for Characterizing Density of States of Oxide Transistors 17

An Analytical Model for Characterizing Density of States of ...

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17th IEEE International Conference on Solid-State and Integrated Circuit technology, ICSICT 2024

作者： Hu, Siyuan Sun, Chuanlin Dong, Junchen Li, Zhensong Zhao, Kai Han, Dedong Zhang, Xing School of Information & Communication Engineering Beijing Information Science & Technology University Beijing100101 China School of Integrated Circuits Beijing Advanced Innovation Center for Integrated Circuits Peking University Beijing100871 China Peking University Shenzhen Graduate School Shenzhen518055 China

ISBN: (纸本)9798350361834

Herein, an analytical model for analyzing subgap density of states (DOS) of the ITO transistors is proposed. The potential distribution within the active layer of oxide transistors is fully described by this model. Based on capacitance-voltage characteristics, an extraction method of density of states (DOS) in the ITO active layer is proposed. The TCAD simulation results based on DOS parameters show a good consistency with the measured transfer curves, which achieves a goodness of fit (R2) of over 0.97. This work propels the practical application of oxide transistors. © 2024 IEEE.

关键词： Thin film transistors

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