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IEEE International Conference on Cyber technology in Automation, Control, and Intelligent Systems

作者： Hengming Liu Chang Liu Zhicheng Hao Zhehai Zhou Jun Qiu Institute of Applied Mathematics Beijing Information Science and Technology University Beijing China Beijing Engineering Research Center of Optoelectronic Information and Instruments Beijing Information Science and Technology University Beijing China

Visual multiple-object tracking (MOT) has always been a research hotspot in the fields of computer vision and video image intelligence analysis. Tracking algorithms must not only accurately locate targets but also adapt to various types of interference while meeting robustness requirements. However, the uncertainty of the number of objects in the scene, mutual occlusion between objects, and the low discriminability of object features have led to slow progress in the practical application of visual multiple-object tracking. To address this issue, we designed a modified attention mechanism module and embedded it into a transformer-based global multiple-object tracking architecture, generating global trajectories for all objects. This forms the proposed efficient algorithm for object tracking. For larger convolution kernels, our method effectively extracts each feature in the receptive field while reducing computation costs, thus improving algorithm efficiency. We conducted the experiments on MOT17 and TAO, and achieved the state-of-the-art results. Experimental results show that our proposed method outperforms existing models overall, ensuring stable object trajectories while maintaining high-quality detection.

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Multidimensional Hybrid Architecture Encapsulating Cobalt Oxide Nanoparticles into Carbon Nanotube Branched Nitrogen-Doped Reduced Graphene Oxide Networks for Lithium–Sulfur Batteries

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Energy & Environmental Materials 2022年第2期5卷 555-564页

作者： Jeong Seok Yeon Young Hun Ko Tae Ho Park Hyunyoung Park Jongsoon Kim Ho Seok Park School of Chemical Engineering College of EngineeringSungkyunkwan University2066Seobu-roJangan-guSuwon-si Gyeonggi-do 440-746Korea Advanced Batteries Research Center Korea Electronics Technology Institute25Saenari-roBundang-guSeongnam-si Gyeonggi-do 13509Korea Department of Energy Science Sungkyunkwan University2066Seobu-roJangan-guSuwon-si Gyeonggi-do 440-746Korea Department of Health Sciences and Technology Samsung Advanced Institute for Health Sciences and Technology(SAIHST)Sungkyunkwan University2066SeoburoJangan-guSuwon 440-746South Korea

Lithium–sulfur batteries(LSBs)are regarded as promising candidates for the next-generation energy storage devices owing to their high-theoretical capacity(1675 mAh g^(−1))and affordable ***,several limitations of LSBs such as the lithium polysulfide shuttle,large volume expansion,and low electrical conductivity of sulfur need to be resolved for practical *** address these limitations,herein,a multidimensional architectured hybrid(Co@CNT/nG),where Co_(3)O_(4) nanoparticles are encapsulated into threedimensional(3D)porous N-doped reduced graphene oxide interconnected with carbon nanotube(CNT)branches,is synthesized through a simple pyrolysis *** synergistic effect achieved through the homogeneously distributed and encapsulated Co_(3)O_(4) nanoparticles,the interconnected CNT branches,and the 3D hierarchical porous structure and N-doping of Co@CNT/nG significantly suppresses the shuttle effect of lithium polysulfides and enhances the conversion redox kinetics for the improved sulfur *** validate this effect through various measurements including symmetric cells,Li_(2)S nucleation,shuttle currents,Tafel slopes,diffusion coefficients,and post-mortem ***,Co@CNT/nG-70S-based LSB cells achieve a high-specific capacity of 1193.1 mAh g^(−1) at 0.1 C and a low capacity decay rate of 0.030%per cycle for 700 cycles at 5 C,delivering a high areal capacity of 5.62 mAh cm^(−2) even with a loading of 6.5 mg cm^(−2).

关键词： graphene/CNT hybrid lithium-sulfur batteries multidimensional architecture nanoparticle encapsulation redox promoter

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Automatic Question Generation with Knowledge Graph for Panoramic Learning

Automatic Question Generation with Knowledge Graph for Panor...

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International Conference on Information technology Based Higher Education and Training, ITHET

作者： Fumika Okuhara Shusaku Egami Yuichi Sei Yasuyuki Tahara Akihiko Ohsuga Graduate School of Informatics and Engineering The University of Electro-Communications Tokyo Japan Artificial Intelligence Research Center National Institute of Advanced Industrial Science and Technology (AIST) Tokyo Japan

ISBN: (数字)9798331516635

ISBN: (纸本)9798331516642

In recent years, the global social landscape has become increasingly complex, requiring the ability to think from a wide range of diverse perspectives for effective problem-solving. In the field of education, panoramic learning, which implements interdisciplinary and comprehensive education, has become essential. Also, there has been recent research on various aspects of automatic question generation (AGQ), with some studies focusing on generating panoramic questions, which provide a comprehensive understanding, across different genres using knowledge graph (KG). KG is a knowledge base that uses a graph-structured data model and consists of entities and relationships between entities. On the other hand, research on generating panoramic questions for specific subjects with educational purposes has been limited, and this study aims to address that. In this work, we specifically targeted the field of history for question generation and used complemented entities to enhance the inclusion of panoramic knowledge in the field of history. The approach involves enhancing subgraphs with link prediction, which complements missing relationships in KGs, particularly in historical contexts requiring temporal and spatial insights. Through evaluation, it was validated that the proposed method could generate questions containing more panoramic knowledge compared to existing methods.

关键词： Training Hands Accuracy Knowledge based systems Focusing Knowledge graphs Question generation History Problem-solving Information technology

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基于实验和元胞自动机模拟的TiNb合金非连续动态再结晶研究

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Journal of Central South University 2023年第9期30卷 2890-2905页

作者：孙冬江树勇张艳秋闫丙尧冯浩 Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment of Ministry of Education Taiyuan 030024China College of Mechanical and Vehicle Engineering Taiyuan University of TechnologyTaiyuan 030024China College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China College of Mechanical and Electrical Engineering Harbin Engineering UniversityHarbin 150001China

TiNb合金因其良好的塑性、机械加工性能和超导电性而被广泛应用于低温超导领域。动态再结晶作为材料加工过程中常见的软化行为,对材料的组织和性能有重要的影响。将实验与元胞自动机模拟相结合,研究了TiNb合金在热压缩过程中的非连续动... 详细信息

TiNb合金因其良好的塑性、机械加工性能和超导电性而被广泛应用于低温超导领域。动态再结晶作为材料加工过程中常见的软化行为,对材料的组织和性能有重要的影响。将实验与元胞自动机模拟相结合,研究了TiNb合金在热压缩过程中的非连续动态再结晶行为。元胞自动机模拟可以较为准确地预测TiNb合金的非连续动态再结晶行为。再结晶晶粒的平均尺寸和体积分数随着变形温度的升高而增大,随着应变速率的升高而减小。TiNb合金变形试样中的锯齿状晶界和再结晶晶粒形核位置符合晶界弓出机制特征。此外,非连续动态再结晶晶粒的随机取向效应有助于减弱TiNb合金中变形织构的强度。

关键词： TiNb合金塑性变形动态再结晶元胞自动机织构

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Triggering dynamics of acetylene topochemical polymerization

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Matter and Radiation at Extremes 2023年第5期8卷 82-88页

作者： Xingyu Tang Xiao Dong Chunfang Zhang Kuo Li Haiyan Zheng Ho-kwang Mao Center for High Pressure Science and Technology Advanced Research Beijing 100193People’s Republic of China Key Laboratory of Weak-Light Nonlinear Photonics School of PhysicsNankai UniversityTianjin 300071People’s Republic of China College of Chemistry and Materials Science Hebei UniversityBaoding 071002People’s Republic of China

Topochemical reactions are a promising method to obtain crystalline polymeric materials with distance-determined regio-or *** has been concluded on an empirical basis that the closest intermolecular C⋅⋅⋅C distance in crystals of alkynes,d(C⋅⋅⋅C)min,should reach a threshold of∼3Åfor bonding to occur at room *** understand this empirical threshold,we study here the polymerization of acetylene in the crystalline state under high pressure by calculating the structural geometry,vibrational modes,and reaction *** find d(C⋅⋅⋅C)min to be the sum of an intrinsic threshold of 2.3Åand a thermal displacement of 0.8Å(at room temperature).Molecules at the empirical threshold move via several phonon modes to reach the intrinsic threshold,at which the intermolecular electronic interaction is sharply enhanced and bonding commences.A distance–vibration-based reaction picture is thus demonstrated,which provides a basis for the prediction and design of topochemical reactions,as well as an enhanced understanding of the bonding process in solids.

关键词： temperature bonding polymerization

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Peculiar microstructural evolution and hardness variation depending on laser powder bed fusion-manufacturing condition in Ti–6Al–2Sn–4Zr–6Mo

Smart Materials in Manufacturing

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Smart Materials in Manufacturing 2024年 2卷

作者： Cobbinah, Prince Valentine Matsunaga, Sae Toda, Yoshiaki Ozasa, Ryosuke Okugawa, Masayuki Ishimoto, Takuya Liu, Yuheng Koizumi, Yuichiro Wang, Pan Nakano, Takayoshi Yamabe-Mitarai, Yoko Department of Advanced Materials Science Graduate School of Frontier Sciences The University of Tokyo Research Center for Structural Materials National Institute for Materials Science Division of Materials and Manufacturing Science Graduate School of Engineering Osaka University Aluminium Research Center University of Toyama Singapore Institute of Manufacturing Technology (SIMTech) Agency for Science Technology and Research (A*STAR)

This study aims to comprehensively analyze the phase and microstructure evolution and related hardness variations of the Ti–6Al–2Sn–4Zr–6Mo wt.% (Ti6246) alloy produced by laser powder bed fusion (LPBF) under various laser conditions and to gain insight into the mechanisms of these changes using numerical thermal analysis. Higher laser volumetric densities (VEDs) resulted in a finer α/α' microstructure and increased hardness, exhibiting a positive correlation with the VED, except under extremely high conditions. This contrary trend, reported for the first time, is attributed to the solid-phase transformation from the β phase to metastable α' martensite during LPBF induced by rapid cooling. Despite the finer microstructure, the samples under very high VED conditions showed lower hardness, deviating from the overall trend. The X-ray diffraction peaks in the high-VED samples suggested a partial decomposition of α' to α + β owing to laser-induced reheating of the underlying layers, which is considered a contributing factor to the hardness reduction. The numerical analysis showed that the underlying layer was exposed to high temperatures for a relatively long time under high-VED conditions. It was revealed that the hardness of LPBF-fabricated Ti6246 was influenced by unique thermal processes: rapid cooling and reheating of the pre-solidified part, leading to the formation of a metastable α' phase and partial decomposition into α + β. These findings provide insights for tailoring Ti6246 with desired physical properties via LPBF. © 2024 The Authors

关键词： LPBF Metastable phase Polycrystalline microstructure Rapid cooling Thermal history Ti6246

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Hydrogen trapping and embrittlement in metals – A review

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International Journal of Hydrogen Energy 2025年 136卷 789-821页

作者： Chen, Yi-Sheng Huang, Chao Liu, Pang-Yu Yen, Hung-Wei Niu, Ranming Burr, Patrick Moore, Katie L. Martínez-Pañeda, Emilio Atrens, Andrej Cairney, Julie M. Australian Centre for Microscopy and Microanalysis The University of Sydney Australia School of Aerospace Mechanical and Mechatronic Engineering The University of Sydney Australia Department of Materials Science and Engineering National Taiwan University Taiwan Advanced Research Center for Green Materials Science and Technology National Taiwan University Taiwan School Mechanical and Manufacturing Engineering University of New South Wales Australia Department of Materials The University of Manchester United Kingdom Photon Science Institute The University of Manchester United Kingdom Department of Civil and Environmental Engineering Imperial College London United Kingdom School of Mechanical and Mining Engineering The University of Queensland St Lucia4072 Australia Department of Engineering Science The University of Oxford United Kingdom

Hydrogen embrittlement in metals (HE) is a serious challenge for the use of high strength materials in engineering practice and a major barrier to the use of hydrogen for global decarbonization. Here we describe the factors and variables that determine HE susceptibility and provide an overview of the latest understanding of HE mechanisms. We discuss hydrogen uptake and how it can be managed. We summarize hydrogen trapping and the techniques used for its characterization. We also review literature that argues that hydrogen trapping can be used to decrease HE susceptibility. We discuss the future research that is required to advance the understanding of HE and hydrogen trapping and to develop HE-resistant alloys. © 2024 The Authors

关键词： Hydrogen embrittlement

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Life Cycle Assessment of the Energy Consumption of Olivine Powder Production for Enhanced Weathering using the Mine-to-Mill Approach

Life Cycle Assessment of the Energy Consumption of Olivine P...

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Energy and Sustainable Development

作者： Almaz Akhmetov Shota Imai Yutaro Akimoto Keiichi Okajima Rustandi Rendi Naomi Kitagawa Shinichirou Morimoto Systems and Information Engineering University of Tsukuba Tsukuba Japan Global Zero Emission Research Center (GZR) National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Japan

ISBN: (数字)9798331517076

ISBN: (纸本)9798331517083

Enhanced weathering, a negative-emissions technology that involves spreading finely grounded silicate rocks to accelerate carbon sequestration, is critical to achieving a net-zero climate future. However, there are concerns related to the uncertainty of the balance of CO 2 emissions to mine, crush, grind, transport, and spread powdered rocks, and the potential carbon dioxide removal. The research aims to estimate the energy consumption across the entire silicate rock powder production chain by utilizing the extraction simulator software to design and model the integrated mine-to-mill process. The analysis scope includes blasting, crushing, primary grinding, and secondary fine grinding. The circuit performance was evaluated for two blasting scenarios: ordinary and intense. The novelty of this study includes the simulation of the entire mine-to-mill process to estimate the specific energy consumption of olivine powder production. This study contributes to the Life Cycle Assessment of technology by improving the scope and accuracy of the analysis.

关键词： Life cycle assessment Energy consumption Powders Accuracy Uncertainty Net zero Carbon dioxide Weathering Rocks Meteorology

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Pixel Image Segmentation of Cerebral Hematoma Based on U-Net and Clustering

Pixel Image Segmentation of Cerebral Hematoma Based on U-Net...

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Computer, Vision and Intelligent technology (ICCVIT), International Conference on

作者： Hai-Feng Zhu Yao-Hui Liu Kun Guo Si-Jie Zhang Ge Chen Department of Computer Science and Technology XiangNan University ChenZhou China Hunan Engineering Research Center of Advanced Embedded Computing and Intelligent Medical Systems Xiangnan University ChenZhou China

ISBN: (数字)9798331540043

ISBN: (纸本)9798331540050

Intracerebral hemorrhage is a disease with high fatality rate, and the expansion of hematoma caused by hemorrhage is one of the factors leading to poor prognosis. Fast and accurate segmentation of the contours of cerebral hematoma will help doctors to make diagnosis to a large extent. In order to solve the problem of insufficient precision of U-net segmentation, pixel image segmentation based on U-net and clustering is proposed. The CT images are divided into multiple channels by preprocessing, and on this basis, the cluster is processed twice, and then they enter the improved U-net network respectively. Finally, multiple results are fused to obtain the final segmentation result.

关键词： Image segmentation Accuracy Computed tomography Clustering algorithms Feature extraction Classification algorithms Kernel Hemorrhaging Unsupervised learning Diseases

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How Artificial Intelligence can support informal caregivers in their caring duties to elderly? A systematic review of the literature 4

How Artificial Intelligence can support informal caregivers ...

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4th Italian Workshop on Artificial Intelligence for an Ageing Society, AIxAS 2023

作者： Milella, Frida Russo, Davide Donato Bandini, Stefania University of Milano-Bicocca Viale Sarca 336 Milan20126 Italy Department of Biosciences and Territory University of Molise Pesche86090 Italy RCAST - Research Center for Advanced Science and Technology The University of Tokyo Komaba Campus 4-6-1 Meguro-ku Tokyo153-8904 Japan

Informal or unpaid caregivers, commonly known as family caregivers, are responsible for providing the 80% of long-term care in Europe, which constitutes a significant portion of health and social care services offered to elderly or disabled individuals. However, the demand for informal care among the elderly is expected to outnumber available supply by 2060. The increasing decline in the caregiver-to-patient ratio is expected to lead to a substantial expansion in the integration of intelligent assistance within general care. The aim of this systematic review was to thoroughly investigate the most recent advancements in AI-enabled technologies, as well as those encompassed within the broader category of assistive technology (AT), which are designed with the primary or secondary goal to assist informal carers. The review sought to identify the specific needs that these technologies fulfill in the caregiver’s activities related to the care of older individuals, the identification of caregivers’ needs domains that are currently neglected by the existing AI-supporting technologies and ATs, as well as shedding light on the informal caregiver groups that are primarily targeted by those currently available. Three databases (Scopus, IEEE Xplore, ACM Digital Libraries) were searched. The search yielded 1002 articles, with 24 articles that met the inclusion and exclusion criteria. Our results showed that AI-powered technologies significantly facilitate ambient assisted living (AAL) applications, wherein the integration of home sensors serves to improve remote monitoring for informal caregivers. Additionally, AI solutions contribute to improve care coordination between formal and informal caregivers, that could lead to advanced telehealth assistance. However, limited research on assistive technologies like robots and mHealth apps suggests further exploration. Future AI-based solutions and assistive technologies (ATs) may benefit from a more targeted approach to appeasing specif

关键词： Artificial intelligence

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