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arXiv 2022年

作者： Shashank, Utkarsh Nakamura, Yoji Kusaba, Yu Tomoda, Takafumi Nongjai, Razia Kandasami, Asokan Medwal, Rohit Rawat, Rajdeep Singh Asada, Hironori Gupta, Surbhi Fukuma, Yasuhiro Department of Physics and Information Technology Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology 680-4 Kawazu Iizuka820-8502 Japan Materials Science Division Inter University Accelerator Centre Aruna Asaf Ali Marg New Delhi110067 India Uttarakhand Dehradun248007 India Department of Physics Indian Institute of Technology Kanpur Kanpur208016 India Natural Sciences and Science Education National Institute of Education Nanyang Technological University 637616 Singapore Graduate School of Sciences and Technology for Innovation Yamaguchi University 2-16-1 Tokiwadai Ube755-8611 Japan Research Center for Neuromorphic AI hardware Kyushu Institute of Technology Kitakyushu808-0196 Japan

The rapidly evolving utilization of spin Hall effect (SHE) arising from spin-orbit coupling in 5d transition metals and alloys have made giant strides in the development of designing low-power, robust and non-volatile magnetic memory. Recent studies, on incorporating non-metallic lighter elements such as oxygen, nitrogen and sulfur into 5d transition metals, have shown an enhancement in damping-like torque efficiency θDL due to the modified SHE, but the mechanism behind this enhancement is not clear. In this paper, we study θDL at different temperatures (100-293 K) to disentangle the intrinsic and extrinsic side-jump scattering induced spin Hall effect in N-implanted Pt. We observe a crossover of intrinsic to extrinsic side-jump mechanism as the implantation dose increases from 2×1016 ions/cm2 to 1×1017 ions/cm2. A sudden decrease in the intrinsic spin Hall conductivity is counterbalanced by the increase in the side-jump induced SHE efficiency. These results conclude that studying θDL as a function of implantation dose, and also as a function of temperature, is important to understand the physical mechanism contributing to SHE, which has so far been unexplored in incorporating non-metallic element in 5d transition metals. Copyright © 2022, The Authors. All rights reserved.

关键词： Spin Hall effect

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Exploring diabetes through the lens of AI and computer vision: Methods and future prospects

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computers in Biology and Medicine 2025年 185卷 109537-109537页

作者： Chundi, Ramesh G., Sasikala Basivi, Praveen Kumar Tippana, Anitha Hulipalled, Vishwanath R. N., Prabakaran Simha, Jay B. Kim, Chang Woo Kakani, Vijay Pasupuleti, Visweswara Rao School of Computer Applications Dayananda Sagar University Bangalore India School of Computer Science and Applications REVA University Rukmini Knowledge Park Bangalore560064 India Pukyong National University Industry-University Cooperation Foundation Pukyong National University Busan48513 Korea Republic of Department of Biotechnology School of Applied Sciences REVA University Rukmini Knowledge Park Bangalore560064 India School of Computing and Information Technology REVA University Rukmini Knowledge Park Bangalore560064 India School of Computer Science and Engineering Vellore Institute of Technology Tamilnadu Vellore632014 India Abiba Systems CTO and RACE Labs REVA University Rukmini Knowledge Park Bangalore560064 India Department of Nanotechnology Engineering College of Engineering Pukyong National University Busan48513 Korea Republic of Integrated System Engineering Inha University 100 Inha-ro Nam-gu Incheon22212 Korea Republic of School of Biosciences Taylor's University Lakeside Campus Selangor Subang Jaya47500 Malaysia Faculty of Earth Sciences Universiti Malaysia Kelantan Campus Jeli Jeli Kelantan17600 Malaysia

Early diagnosis and timely initiation of treatment plans for diabetes are crucial for ensuring individuals’ well-being. Emerging technologies like artificial intelligence (AI) and computer vision are highly regarded for their ability to enhance the accessibility of large datasets for dynamic training and deliver efficient real-time intelligent technologies and predictable models. The application of AI and computer vision techniques to enhance the analysis of clinical data is referred to as eHealth solutions that employ advanced approaches to aid medical applications. This study examines several advancements and applications of machine learning, deep learning, and machine vision in global perception, with a focus on sustainability. This article discusses the significance of utilizing artificial intelligence and computer vision to detect diabetes, as it has the potential to significantly mitigate harm to human life. This paper provides several comments addressing challenges and recommendations for the use of this technology in the field of diabetes. This study explores the potential of employing Industry 4.0 technologies, including machine learning, deep learning, and computer vision robotics, as effective tools for effectively dealing with diabetes related aspects. © 2024 Elsevier Ltd

关键词： Artificial intelligence computer vision Diabetes Deep learning Machine learning

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Retraction notice to “Automation industry in cyber physical systems based on 4G IoT networks for operation controlling and monitoring management” [Optik 272 (2023) 170308]

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Optik 2025年 333卷

作者： K.V. Mahesan Anupong Wongchai C. Tamizhselvan S. Manoj Kumar P. Vijayakumar Bharat Singh Dr. Ambedkar Institute of Technology Bangalore India Department of Agricultural Economy and Development Faculty of Agriculture Chiang Mai University Thailand Department of Data Science and Business System College of Engineering and Technology SRM Institute of Science and Technology Kattankulathur Chennai Tamilnadu India Department of Computer Science and Engineering KPR Institute of Engineering and Technology Coimbatore 641407 India School of Electronics Engineering Vellore Institute of Technology Chennai India Department of Mechanical Engineering GLA University Mathura UP India

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Model-based testing of Apache ZooKeeper: Fundamental API usage and watchers

Model-based testing of Apache ZooKeeper: Fundamental API usa...

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作者： Artho, Cyrille Banzai, Kazuaki Gros, Quentin Rousset, Guillaume Ma, Lei Kitamura, Takashi Hagiya, Masami Tanabe, Yoshinori Yamamoto, Mitsuharu School of Electrical Engineering and Computer Science KTH Royal Institute of Technology Stockholm Sweden Institute of Information Technology Research National Institute of Advanced Industrial Science and Technology Osaka Japan Department of Computer Science The University of Tokyo Tokyo Japan Polytech Nantes University of Nantes Nantes France Faculty of Information Science and Electrical Engineering Kyushu University Fukuoka Japan Department of Library Archival and Information Studies Tsurumi University Yokohama Japan Department of Mathematics and Informatics Chiba University Chiba Japan

In this paper, we extend work on model-based testing for Apache ZooKeeper, to handle watchers (triggers) and improve scalability. In a distributed asynchronous shared storage like ZooKeeper, watchers deliver notifications on state changes. They are difficult to test because watcher notifications involve an initial action that sets the watcher, followed by another action that changes the previously seen state. We show how to generate test cases for concurrent client sessions executing against ZooKeeper with the tool Modbat. The tests are verified against an oracle that takes into account all possible timings of network communication. The oracle has to verify that there exists a chain of events that triggers both the initial callback and the subsequent watcher notification. We show in detail how the oracle computes whether watch triggers are correct and how the model was adapted and improved to handle these features. Together with a new search improvement that increases both speed and accuracy, we are able to verify large test setups and confirm several defects with our model. Copyright © 2019 John Wiley & Sons, Ltd.

关键词： Model checking

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Shooting-projection method for a small object moving under the influence of a force 10

Shooting-projection method for a small object moving under t...

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202 10th International Conference on engineering Mathematics and Physics, ICEMP 2021

作者： Filipov, S.M. Faragó, I. Avdzhieva, A. Department of Computer Science Faculty of Chemical and System Engineering University of Chemical Technology and Metallurgy 8 St. Kliment Ohridski Blvd. Sofia1756 Bulgaria Department of Differential Equations Institute of Mathematics Budapest University of Technology and Economics MTA-ELTE Research Group Egry József u. 1 Budapest1111 Hungary Department of Numerical Methods Faculty of Mathematics and Informatics Sofia University St. Kliment Ohridski 5 James Bourchier Blvd. Sofia1164 Bulgaria

We consider a small object in 3D moving under the influence of a force that may depend explicitly on time, on the position of the object, and on its velocity. The equations of motion of classical mechanics are assumed to hold. If the position of the object is specified at some initial and some final time, obtaining the trajectory of the object requires the solution of a two-point boundary value problem. To solve the problem various numerical technics can be applied. This paper extends the recently proposed shooting-projection method to 3D. We introduce a Lagrangian from which, applying the principle of least action, the projection trajectory is derived. Analysis of the action reveals the meaning of the projection trajectory. Using the shooting-projection method, the considered two-point boundary value problem is solved for the case of a projectile motion in the presence of air resistance and wind. © 2021 institute of Physics Publishing. All rights reserved.

关键词： Trajectories

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Design and Structural Optimization of Thiadiazole Derivatives with Potent GLS1 Inhibitory Activity

SSRN

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SSRN 2023年

作者： Okada, Takuya Yamabe, Kaho Jo, Michiko Sakajiri, Yuko Shibata, Tomokazu Sawada, Ryusuke Yamanishi, Yoshihiro Kanayama, Daisuke Mori, Hisashi Mizuguchi, Mineyuki Obita, Takayuki Nabeshima, Yuko Koizumi, Keiichi Toyooka, Naoki Faculty of Engineering University of Toyama Toyama930-8555 Japan Graduate School of Pharma-Medical Sciences University of Toyama Toyama930-8555 Japan Graduate School of Science and Engineering University of Toyama Toyama930-8555 Japan Division of Presymptomatic Disease Institute of Natural Medicine University of Toyama Toyama930‑0194 Japan Department of Bioscience and Bioinformatics Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology Fukuoka804-8550 Japan Graduate School of Informatics Nagoya University Chikusa Nagoya464-8602 Japan Department of Pharmacology Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences Okayama700-8558 Japan Department of Molecular Neuroscience Faculty of Medicine University of Toyama Toyama930-0194 Japan Research Center for Pre-Disease Science University of Toyama Toyama930-0194 Japan Faculty of Pharmaceutical Sciences University of Toyama Toyama930-0194 Japan

GLS1 is an attractive target not only as anticancer agents but also as candidates for various potential pharmaceutical applications such as anti-aging and anti-obesity treatments. We performed docking simulations based on the complex crystal structure of GLS1 and its inhibitor CB-839 and found that compound A bearing a thiadiazole skeleton exhibits GLS1 inhibition. Furthermore, we synthesized 27 thiadiazole derivatives in an effort to obtain a more potent GLS1 inhibitor. Among the synthesized derivatives, 4d showed more potent GLS1 inhibitory activity (IC50 of 46.7 µM) than known GLS1 inhibitor DON and A. Therefore, 4d is a very promising novel GLS1 inhibitor. © 2023, The Authors. All rights reserved.

关键词： Structural optimization

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Volatile to Non-Volatile Switching Transition in Chalcogenides

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Advanced Functional Materials 2025年第23期35卷

作者： Zhao, Zihao Zhang, Mengfei Yang, Qun Gotoh, Tamihiro Ge, Qingqin Shi, Nannan Sun, Yuting Zhao, Jiayi Sui, Yanping Jiang, Ran Yu, Haibin Elliott, Stephen R. Song, Zhitang Zhu, Min National Key Laboratory of Materials for Integrated Circuits Shanghai Institute of Micro-System and Information Technology Chinese Academy of Sciences Shanghai200050 China University of Chinese Academy of Sciences Beijing100029 China Wuhan National High Magnetic Field Center and School of Physics Huazhong University of Science and Technology Wuhan430074 China Department of Physics Graduate School of Science and Technology Gunma University Maebashi3718510 Japan Thermo Fisher Scientific China Shanghai200050 China Faculty of Electrical Engineering and Computer Science Ningbo University Ningbo315211 China Trinity College University of Cambridge CambridgeCB2 1TQ United Kingdom Physical and Theoretical Chemistry Laboratory University of Oxford OxfordOX1 3QZ United Kingdom School of Integrated Circuits Shanghai Jiao Tong University Shanghai200240 China

Over the past 60 years, three distinct electrical switching behaviors have been discovered in chalcogenides: ovonic threshold switch (OTS), ovonic memory switch (OMS), and phase-change switch (PCS). The first two have been successfully utilized in commercialized 3D Xpoint chips, serving as selector and memory cells, respectively. However, the relationships among these three behaviors remain unclear. Here, it is demonstrated that the Ge-Te binary system exhibits these three switching mechanisms. Specifically, the switching behavior transforms from PCS-like to OTS-like within the composition range from GeTe8 to GeTe6, while the shift from volatile (OTS) to non-volatile switching behavior (OMS) occurs between the compositions GeTe2 and GeTe. The PCS-to-OTS transition is primarily driven by enhancements in glass-forming ability, with the Turnbull parameter increasing from 0.58 to 0.6, and the crystallization temperature exceeding 145 °C, while the shift from OTS to OMS behavior is largely due to the significantly accelerated crystallization speed, from microseconds to nanoseconds. Most importantly, the GeTe16 PCS stands out, with a large ON current (0.6 mA), low leakage current (−8 A), high endurance (>6 × 109 cycles), and high-temperature back-end-of-line compatibility. The crystalline nature of this PCS material addresses the composition and toxicity issues in conventional OTS materials. Moreover, GeTe16 PCSs have been successfully integrated with GeTe OMSs, forming selector/memory arrays with a read margin of 0.4 V. These findings not only reveal the mechanisms underlying the volatile to non-volatile transition but also provide an alternative solution for high-density 3D memory, potentially replacing the OTS/OMS stack approach. © 2025 Wiley-VCH GmbH.

关键词： Phase change memory

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Heliocentric Distance Dependence of Zodiacal Light Observed by Hayabusa2#

arXiv

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arXiv 2023年

作者： Tsumura, Kohji Matsuura, Shuji Sano, Kei Iwata, Takahiro Yano, Hajime Kitazato, Kohei Takimoto, Kohji Yamada, Manabu Morota, Tomokatsu Kouyama, Toru Hayakawa, Masahiko Yokota, Yasuhiro Tatsumi, Eri Matsuoka, Moe Sakatani, Naoya Honda, Rie Kameda, Shingo Suzuki, Hidehiko Cho, Yuichiro Yoshioka, Kazuo Ogawa, Kazunori Shirai, Kei Sawada, Hirotaka Sugita, Seiji Department of Natural Sciences Faculty of Science and Engineering Tokyo City University Tokyo158-8557 Japan Department of Physics School of Science and Technology Kwansei Gakuin University Hyogo669-1337 Japan Department of Space Systems Engineering School of Engineering Kyushu Institute of Technology Fukuoka804-8550 Japan Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Kanagawa252-5210 Japan Department of Space and Astronautical Science The Graduate University of Advanced Studies Kanagawa240-0193 Japan Department of Computer Science and Engineering The University of Aizu Fukushima965-8580 Japan Planetary Exploration Research Center Chiba Institute of Technology Chiba275-0016 Japan Department of Earth and Planetary Science University of Tokyo Tokyo113-0033 Japan Digital Architecture Research Center National Institute of Advanced Industrial Science and Technology Tokyo135-0064 Japan Instituto de Astrofisica de Canarias University of La Laguna Tenerife Spain Geological Survey of Japan National Institute of Advanced Industrial Science and Technology Ibaraki305-8567 Japan Center for Data Science Ehime University Ehime790-8577 Japan Rikkyo University Tokyo171-8501 Japan Meiji University Kanagawa214-8571 Japan Department of Complexity Science and Engineering University of Tokyo Chiba277-8561 Japan JAXA Space Exploration Center Japan Aerospace Exploration Agency Kanagawa252-5210 Japan Kobe University Hyogo657-8501 Japan

Zodiacal light (ZL) is sunlight scattered by interplanetary dust particles (IDPs) at optical wavelengths. The spatial distribution of IDPs in the Solar system may hold an important key to understanding the evolution of the Solar system and material transportation within it. The number density of IDPs can be expressed as n(r) ∼ r−α, and the exponent α ∼ 1.3 was obtained by previous observations from interplanetary space by Helios 1/2 and Pioneer 10/11 in the 1970s and 1980s. However, no direct measurements of α based on ZL observations from interplanetary space outside Earth’s orbit have been performed since then. Here, we introduce initial results for the radial profile of the ZL at optical wavelengths observed over the range 0.76-1.06 au by ONC-T aboard the Hayabusa2# mission in 2021-2022. The ZL brightness we obtained is well reproduced by a model brightness, although there is a small excess of the observed ZL brightness over the model brightness at around 0.9 au. The radial power-law index we obtained is α = 1.30 ± 0.08, which is consistent with previous results based on ZL observations. The dominant source of uncertainty arises from the uncertainty in estimating the diffuse Galactic light (DGL). © 2023, CC BY.

关键词： Orbits

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PI-D controller design with finite number of frequency responces model via a ratio of fourier transformations of input and output signals

IEEJ Transactions on Electronics, Information and Systems

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IEEJ Transactions on Electronics, Information and systems 2019年第4期139卷 402-408页

作者： Kami, Yasushi Tanaka, Ryosuke Mitani, Yuuichiroh Nobuyama, Eitaku Department of Electrical and Computer Engineering National Institute of Technology Akashi College 679-3 Nishioka Uozumi Akashi Hyogo674-8501 Japan Department of Mechanical Engineering National Institute of Technology Numazu College 3600 Ooka Numazu Shizuoka410-8501 Japan Department of Systems Innovation and Informatics Faculty of Computer Science and System Engineering Kyushu Institute of Technology 680-4 Kawazu Iizuka Fukuoka820-8502 Japan

This paper shows a PI-D controller design method with a finite number of frequency responses(FNFR) model so that it stabilizes a closed-loop system and matches a transfer function of the closed-loop system to that of ideal model. In this paper FNFR model is introduced with a ratio of the discrete Fourier transformation of input and output signals. The main contribution of this paper is to propose a method to reduce the control problem to a convex optimization problem. The efficiency of the method with FNFR model is shown through experimental results via a magnetic levitation system © 2019 The institute of Electrical Engineers of Japan.

关键词： Controllers

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Ferroelectric-Photovoltaic and Optoelectronic-Sensing Response to Substitution engineering of Spin Casted BiFeO3 Thin Films

Ferroelectric-Photovoltaic and Optoelectronic-Sensing Respon...

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IEEE International Conference on Plasma science (ICOPS)

作者： Surbhi Gupta Rohit Medwal Rajdeep Singh Rawat School of Computer Science and System Engineering Kyushu Institute of Technology Iizuka Japan Natural Science and Science Education National Institute of Education Nanyang Technological University Singapore

ISBN: (纸本)9781728153087

Ferroelectric-photovoltaic and photo-detection devices, engaging perovskite oxide families such as Pb(Zr, Ti)O 3 , BaTi O3 , BiFeO 3 (BFO) etc. are continuously researched in past decades to possibly shrink, the fabrication cost of transducers and sensors owing to abundance and easy large sheet-area synthesis to compete with existing Si-based technology [1]. Since BFO exhibits small band gap of 2.2-2.7eV in visible spectrum and large ferroelectric polarization $(\sim 90\ \mu \mathrm{C}/\text{cm}^{2})$ , it is more advantageous over lead based ferroelectrics oxides having relatively large band gap typically (∼ 3.5 eV) in ultraviolet region for harnessing energy. In addition, BFO also favors multifunctional operation, thanks to magneto-optic and photo-striction effect that intriguing applications of photo-driven remote control BFO-based wireless devices, actuators, opto-mechanical micro/nano systems are also envisioned.

关键词： Wireless communication Wireless sensor networks Transducers Photonic band gap Magnetooptic devices Perovskites Sensors

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