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Workload distribution with rateless encoding: A low-latency computation offloading method within edge networks

Computer Networks 2025年

作者： Zhongfu Guo Xinsheng Ji Wei You Hai Guo Yang Zhang Yu Zhao Mingyan Xu Yi Bai Department of next-generation mobile communication and cyber space security Information Engineering University Zhengzhou 450001 China Troops 61660 Beijing 100093 China National Digital Switching System Engineering and Technological Research and Development Center Zhengzhou 450000 China Purple Mountain Laboratories: Networking Communications and security Nanjing 211111 China Department of Economics and Management University of Chinese Academy of Sciences Beijing 100190 China

In the era of ubiquitous intelligence, user elements offload data-intensive computations to edge network computing clusters, leveraging the efficiency and reliability advantages of distributed computing. However, the delays and failures caused by stragglers significantly hinder system performance. Coded distributed computing combines coding theory with distributed computing, introducing effective redundant computations to accommodate stragglers. Yet, current research often focuses on a fixed number of stragglers with minimal redundancy, lacking a systematic design that considers the inherent heterogeneity in computation, communication, and storage across computing nodes. This paper introduces Rateless Encoding Distributed Computing (REDC), a comprehensive strategy for offloading random arrival computing tasks to distributed computing. REDC devises a rateless coding method for matrix multiplication operations, generating continuous redundant tasks to accommodate random node failures. The proposed queuing theory model requires minimal feedback to update node statuses, dynamically adapting to fluctuations in cluster performance. Simulation results demonstrate that REDC effectively leverages the computing power of clusters with heterogeneous and time-varying characteristics, achieving a resource utilization rate of 93.11%. Moreover, REDC reduces task execution delays by 6.32% compared to the latest baseline, significantly reducing sequential execution delays of computing tasks.

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Duplication of the autism-related gene Chd8 leads to behavioral hyperactivity and neurodevelopmental defects in mice

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Nature communications 2025年第1期16卷 4641页

作者： Atsuki Kawamura Kazuki Fujii Kota Tamada Yoshifumi Abe Kenta Nitahara Tomoya Iwasaki Sho Yagishita Kenji F Tanaka Toru Takumi Keizo Takao Masaaki Nishiyama Department of Histology and Cell Biology Graduate School of Medical Sciences Kanazawa University Kanazawa Ishikawa Japan. Department of Behavioral Physiology Faculty of Medicine University of Toyama Toyama Japan. Research Center for Idling Brain Science University of Toyama Toyama Japan. Life Science Research Center University of Toyama Toyama Japan. Department of Physiology and Cell Biology Kobe University School of Medicine Chuo Kobe Japan. Division of Brain Sciences Institute for Advanced Medical Research Keio University School of Medicine Tokyo Japan. Social Brain Development Research Unit Next Generation Medical Development Research Core Institute for Frontier Science Initiative Kanazawa University Kanazawa Ishikawa Japan. Laboratory of Structural Physiology Center for Disease Biology and Integrative Medicine Faculty of Medicine The University of Tokyo Tokyo Japan. Department of Histology and Cell Biology Graduate School of Medical Sciences Kanazawa University Kanazawa Ishikawa Japan. nishiyam@staff.kanazawa-u.ac.jp. Social Brain Development Research Unit Next Generation Medical Development Research Core Institute for Frontier Science Initiative Kanazawa University Kanazawa Ishikawa Japan. nishiyam@staff.kanazawa-u.ac.jp.

Mutations in the gene encoding chromodomain helicase DNA-binding protein 8 (CHD8) are strongly associated with autism spectrum disorder (ASD). Although duplications of the chromosomal locus including CHD8 have also been detected in individuals with neurodevelopmental disorders, the contribution of CHD8 duplication to clinical phenotypes and the underlying mechanisms have remained unknown. Here we show that Chd8 knock-in (KI) mice that overexpress CHD8 as a model of human CHD8 duplication manifest growth retardation, microcephaly, impaired neuronal differentiation, and behavioral abnormalities including hyperactivity and reduced anxiety-like behavior. Chd8 overexpression affects the transcription and chromatin accessibility of genes related to neurogenesis, with these changes being associated with aberrant binding of CHD8 to enhancer regions. Furthermore, pharmacological intervention partially ameliorates the hyperactivity of Chd8 KI mice. Our results thus indicate that Chd8 KI mice recapitulate key features of CHD8 duplication syndrome in humans, providing insight into pathogenic mechanisms underlying neurodevelopmental disorders.

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research on FOPLP package of multi-chip power module 8

Research on FOPLP package of multi-chip power module

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8th IEEE Electronics System-Integration Technology Conference, ESTC 2020

作者： Jiang, Jing Huo, Jia Ren Song, Guan Qiang Ye, Huaiyu Liu, De Bo Zhang, Guoqi Jun Wang, Jun Tao FUDAN UNIVERSITY ACADEMY for ENGINEERINGTECHNOLOGY Shanghai China Wuxi Sky Chip Interconnection Technology CO. LTD Product Research and Development shenzhen China Southern University of Science and Technology Shenzhen Institute of Wide-Bandgap Semiconductors Engineering Research Center of Integrated Circuits for Next-Generation Communications Ministry of Education Shenzhen China Wuxi Sky Chip Interconnection Technology CO. LTD R and D Department Wuxi China Delft University of Technology Shenzhen Institute of Wide-Bandgap Semiconductors Electronic Components Technology and Materials Delft CD2628 Netherlands

ISBN: (纸本)9781728162928

Power devices are developing for the small volume, high performance and modularization. With more and more application scenarios of Brushless Direct Current Motor (BLDC), MOSFET multi-chip module (MCM) is popular with people. However, the conventional wire Bonding and Copper clip welding technology struggles to meet the requirements for the excessive heat accumulation and complex logic problems in MCM. While the above problems can be well solved by using the new Fan out panel level packing(FOPLP) technology for QFN packaging of multi-chip. The traditional welding technology is used at the bottom of the chip, and the copper porous link is used at the top of the chip with low parasitic capacitance, inductance and low Rdson in electrical performance. In respect to thermal management, the ?JC on the top of the chip can be reduced, which has the effect of double-sided heat dissipation. Top Layer interconnection technology is adopted in the packaging scheme, which can have complex circuit *** paper mainly describes the technical implementation of this packaging technology, adopting the finite element software to establish a three-dimensional model of a new type of FOPLP and wire welding packaging for MCM. The thermal resistance of different packaging schemes is calculated to confirm the advantages and disadvantages of different schemes by the way of thermal simulation, the internal temperature distribution of different packaging structures and the main influencing factors of the thermal resistance of packaging compared. © 2020 IEEE.

关键词： Modular construction

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Correction: Quantitative assessment of cardiomyocyte mechanobiology through high-throughput cantilever-based functional well plate systems

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The Analyst 2023年第1期149卷 254页

作者： Jongyun Kim Arunkumar Shanmugasundaram Dong-Su Kim Yun-Jin Jeong Pooja P Kanade Eung-Sam Kim Bong-Kee Lee Dong-Weon Lee MEMS and Nanotechnology Laboratory School of Mechanical Engineering Chonnam National University Gwangju 61186 Republic of Korea. mems@jnu.ac.kr. Advanced Medical Device Research Center for Cardiovascular Disease Chonnam National University Gwangju 61186 Republic of Korea. Green Energy & Nano Technology R&D Group Korea Institute of Industrial Technology (KITECH) Gwangju 61012 Republic of Korea. Department of Biological Sciences Chonnam National University Gwangju 61186 Republic of Korea. Center for Next-Generation Sensor Research and Development Chonnam National University Gwangju 61186 Republic of Korea.

Correction for 'Quantitative assessment of cardiomyocyte mechanobiology through high-throughput cantilever-based functional well plate systems' by Jongyun Kim , , 2023, , 5133-5143, https://***/10.1039/D3AN012...

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development of Dynamic Wireless Power Transfer System for Vehicle Logistics Robot

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IEEJ Transactions on Industry Applications 2022年第2期142卷 146-154页

作者： Shimizu, Osamu Hanabusa, Kazuyoshi Arasaki, Kota Gunji, Daisuke Sakai, Yuto Ikeda, Hiromori Matsuoka, Fuminori Graduate School of Frontier Science The University of Tokyo 5-1-5 Kashiwanoha Kashiwa Chiba277-8561 Japan Development Section 1 Energy Units Development Dept. Advanced Products Development Center Technology & Intellectual Property HQ TDK Corporation 2-15-7 Higashi-Ohwada Ichikawa Chiba272-8558 Japan R&D Division System Power Supply Department WPT Development Group TDK-Lambda Corporation 2-15-7 Higashi-Ohwada Ichikawa Chiba272-8558 Japan New Product Development Department Technical Research Office NSK Ltd. 1-5-50 Kugenumashimmei Fujisawa Kanagawa251-8501 Japan BR NEXT GENERATION LOGISTICS DIV. YUTO SAKAI SHINMEI INDUSTRY CO. Ltd. 3-20 Koromogahara Aichi Toyota471-0856 Japan Central Japan Business Dept. TOYOTA T&S CONSTRUCTION CO. LTD. 65 Kamekubi-cho Kamimukaida Aichi Toyota470-0375 Japan Strategy Planning & Administration Dept. Vehicle Logistics Div. TOYOTA MOTOR CORPORATION 1 Motomachi Aichi Toyotashi471-0854 Japan

Laborsaving is a major issue in production. In an automotive production line, a yard that is used as a temporary storage for vehicles before shipping. The vehicle-loading robot that operates autonomously has been proposed to automate the alignment of vehicles in the yard instead of human driving. In this study, the dynamic wireless power transfer system that includes the structure of the roadside for the vehicle-loaded robot is proposed. It is proven that the transmitter coil has enough durability for the load of the robot weight using simulation and actual measurement. It is also shown that the reinforcement bars of the road structure cause considerable eddy current loss even with stainless steel. This is similar to loss by coil resistance. This system achieves a 1.8 kW dynamic wireless power transfer with an automated coil detection system and a frequency control system, under factory conditions. 2022 The Institute of Electrical Engineers of Japan.

关键词： Robots

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The processability of highly spherical gas-atomized ti-6al-4v alloy powder in laser powder bed fusion

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Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy 2020年第8期67卷 424-430页

作者： Nakamura, Kazuya Ikeshoji, Toshi-Taka Sekimoto, Koichiro Okumura, Teppei Kyogoku, Hideki Kindai University Hiroshima Branch Technology Research Association for Future Additive Manufacturing 1 Takaya-Umenobe Higashihiroshima739-2116 Japan Fundamental Technology for Next Generation Research Institute Kindai University 1 Takaya-Umenobe Higashihiroshima739-2116 Japan Corporate Research & Development Center Daido Steel Co. Ltd. 30 Daido-cho 2-chome Minami-ku Nagoya457-8545 Japan

The powder characteristics are one of the most important factors to affect the processability in additive manufacturing technology, especially in laser powder bed fusion. In this research, the influence of highly spherical gas-atomized Ti-6Al-4V alloy powder on the processability in laser powder bed fusion was investigated. The cubic specimens of highly spherical gas-atomized Ti-6Al-4V alloy powder were fabricated at various laser power and scan-speed using a laser powder bed fusion type machine with 1 kW fiber laser, and examined the density and surface roughness of the cubic specimens. As a result, the optimum fabrication condition was obtained using the process map evaluated by the density and surface roughness of the cubic specimen. The alloy fabricated at a laser power of 150 W and a scan speed of 700 mm/s showed the maximum relative density of 99.94% and the surface roughness, Sa, of about 5 µm. The tensile strength and elongation of the as-built alloy were more than 1300 MPa and 8%, respectively. It was thus found that the use of highly spherical gas-atomized powder greatly improves the density, surface roughness and tensile properties of the as-built alloy. © 2020 Japan Society of Powder and Powder Metallurgy

关键词： Titanium alloys

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Mapping the research on self-performed ultrasound: A scoping review

WFUMB Ultrasound Open

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WFUMB Ultrasound Open 2025年第1期3卷 100084-100084页

作者： Miyako Muta Mari Abe Nao Tamai Mizuho Itabashi Gojiro Nakagami Department of Gerontological Nursing/Wound Care Management Graduate School of Medicine The University of Tokyo Tokyo Japan Research Institute for Next-Generation Nursing Education Tokyo Japan Department of Nursing The University of Tokyo Hospital Tokyo Japan Department of Nursing Graduate School of Medicine Yokohama City University Kanagawa Japan Department of Gerontological Nursing Graduate School of Nursing Science St Luke's International University Tokyo Japan Japan Drug Development and Medical Affairs Eli Lilly Japan K.K Kobe Japan Global Nursing Research Center Graduate School of Medicine The University of Tokyo Tokyo Japan

Objective Point-of-care ultrasound (POCUS) is widely used for noninvasive, real-time patient assessment but requires specialized skills for image acquisition, limiting its self-care applications. Recent advancements include remote evaluation and artificial intelligence (AI)-assisted interpretation of ultrasound images. Self-performed ultrasound has emerged as a feasible approach but lacks standardized definitions and methods. This study reviews the literature on self-performed ultrasound to assess its current state and challenges, aiding future dissemination and application. Methods research articles published through June 2024 were mapped across four databases using keywords related to ‘self’ or ‘tele’ and ultrasound terms. Two reviewers with POCUS expertise conducted primary and secondary screening. Results Of the 661 articles screened, 20 were included. These lacked a unified definition of self-performed ultrasound. However, all studies involved receiving guidance from an ultrasound specialist, either remotely or in-person, prior to or in real-time, and obtaining ultrasound images by applying the probe to one's own body. Participants did not necessarily have to interpret the images themselves. Participants included patients, pregnant women, healthy volunteers, and astronauts who performed ultrasound on various body parts. Instructions were provided either in-person or remotely, and images that were obtained were evaluated for image quality by experts. Conclusion With proper guidance, novices can successfully perform self-ultrasound. Standardized education, coupled with remote evaluation and AI-assisted interpretation, could expand the utility of ultrasound for health assessments beyond medical facilities, including in underserved regions and home settings.

关键词： Echography Point-of-care ultrasound Self-care Self-ultrasound Telehealth

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Influence of contamination on banded iron formations in the Isua supracrustal belt, West Greenland: Reevaluation of the Eoarchean seawater compositions

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Geoscience Frontiers 2018年第4期9卷 1049-1072页

作者： Shogo Aoki Chiho Kabashima Yasuhiro Kato Takafumi Hirata Tsuyoshi Komiya Department of Earth Science and Astronomy The University of Tokyo Frontier Research Center for Energy and Resources School of EngineeringThe University of Tokyo Department of Systems Innovation School of EngineeringThe University of Tokyo Ocean Resources Research Center for Next Generation Chiba Institute of Technology Research and Development Center for Submarine Resources Japan Agency for Marine-Earth Science and Technology(JAMSTEC) Division of Earth and Planetary Sciences Kyoto University

Banded Iron Formations（BIFs） are chemical sediments, ubiquitously distributed in the Precambrian supracrustal belts; thus their trace element compositions are helpful for deciphering geochemical evolution on the Earth through time. However, it is necessary to elucidate factors controlling the whole-rock compositions in order to decode the ancient seawater compositions because their compositions are highly variable. We analyzed major and trace element contents of the BIFs in the 3.8-3.7 Ga Isua supracrustal belt（ISB）, southern West Greenland. The BIFs are petrographically classified into four types：Black-,Gray-, Green-and White-types, respectively. The Green-type BIFs contain more amphiboles, and are significantly enriched in Co, Ni, Cu, Zn, Y, heavy rare earth element（HREE） and U contents. However,their bulk compositions are not suitable for estimate of seawater composition because the enrichment was caused by secondary mobility of metamorphic Mg, Ca and Si-rich fluid, involvement of carbonate minerals and silicate minerals of olivine and pyroxene and/or later silicification or contamination of volcanic and clastic materials. The White-type BIFs are predominant in quartz, and have lower transition element and REE contents. The Gray-type BIFs contain both quartz and magnetite. The Black-type BIFs are dominated by magnetite, and contain moderate to high transition element and REE contents. But,positive correlations of V, Ni, Zn and U contents with Zr contents suggest that involvement of detrital,volcanic and exhalative materials influences on their contents. The evidence for significant influence of the materials on the transition element contents such as Ni in the BIFs indicates the transition element contents in the Archean ocean were much lower than previously estimated. We reconstructed secular variations of V,Co, Zn and U contents of BIFs through time, which show Ni and Co contents decreased whereas V, Zn and U contents increased through time. Especially, the Ni

关键词： Banded iron formations Eoarchean Isua supracrustal belt Bioessential elements Seawater compositions

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EP07.04-23 Telomerase-Based Circulating Tumor Cell Detection for the Treatment Response Prediction in Patients with Non-small-Cell Lung Cancer

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Journal of Thoracic Oncology 2023年第11期18卷 S554-S554页

作者： K. Hoshi S. Togo I. Sumiyoshi K. Abe S. Saiwaki Y. Hashim S. Nojiri Y. Tabe Y. Urata K. Takahashi Division of Respiratory Medicine Juntendo University Faculty of Medicine & Graduate School of Medicine Bunkyo-ku Tokyo/JP Department of Minimally invasive Next-generation Cancer Diagnosis by TelomeScan Juntendo University Graduate School of Medicine Bunkyo-ku Tokyo/JP Oncolys BioPharma Inc. Minato-ku Tokyo/JP Leading Center for the Development and Research of Cancer Medicine Juntendo University Graduate School of Medicine Bunkyo-ku Tokyo/JP Medical Technology Innovation Center Juntendo University Bunkyo-ku Tokyo/JP Department of Clinical Laboratory Medicine Juntendo University Graduate School of Medicine Tokyo Bunkyo-ku Tokyo/JP

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Different vantage points amongst different stakeholders in NATECH (NAtural hazard-triggered TECHnological) disasters: A case from the 2018 Mt. Anak Krakatau eruption and tsunami

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IOP Conference Series: Earth and Environmental Science 2021年第1期630卷

作者： Dicky Pelupessy Yasuhito Jibiki Fatma Lestari Agustino Zulys Fumihiko Imamura Faculty of Psychology Disaster Risk Reduction Center Universitas Indonesia Next Generation Volcano Researcher Development Program Graduate School of Science Tohoku University Faculty of Public Health Disaster Risk Reduction Center Universitas Indonesia Faculty of Mathematics and Natural Sciences Disaster Risk Reduction Center Universitas Indonesia International Research Institute of Disaster Science Tohoku University

Previous literature on natech (Natural hazard-triggered TECHnological) disasters argue prevailing difficulties in establishing collective response and sharing common knowledge amongst different and a variety of stakeholders. We aim to describe such challenges using a case study and examine the relationship amongst the actors. Our case study focused on the 2018 Mt. Anak Krakatau eruption and the tsunami triggered by it. In this disaster, one of the largest industrial zones in Indonesia was partially affected. Our study largely explains the results based on some series of discussions with private companies and representatives of the residents collected in 2019 (from February to July). We also referred to the publicly available information, which relevant agencies in the Government of Indonesia issued. Although there were no physical damages in the factories and no causalities, staff in many facilities were worried about the situation and the surrounding residents were also scared how things would be going. The residents were not able to behave in collectively organized manner, because they faced with a lack of the synthesized and coordinated information and instructions. The residents were fully aware of the risk of natech disaster, but such awareness was not necessarily connected with reasonable risk perception and organized behaviours. Relevant organizations complied with their own protocols, but it did not necessarily bring better consequences. The meteorological agency disseminated information in their limited capacity. The volcano monitoring agency paid the limited focus on the volcano and its adjacent sea area. The national and local disaster management agencies tried to integrate technical information, but it took time. The companies carefully gathered information, but their priorities initially went to their internal response, including taking care of the families of their employees. These findings indicate that efforts were done in the right course separately

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