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SSRN 2025年

作者： Ren, Jinglin Chen, Yulin Gu, Jiawei Zhang, Peng Chen, Chen Zhang, Jian Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology School of Intelligent Manufacturing Jiangnan University Wuxi214122 China

Shape memory effect (SME) in shape memory alloys (SMAs) results from deformation below Af, accompanying pre-strain effect (PSE) which was usually implicated by dislocations. We systematically investigate the effects o... 详细信息

关键词： Titanium alloys

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Novel Cellulosic Fiber Composites with Integrated Multi-Band Electromagnetic Interference Shielding and Energy Storage Functionalities

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Nano-Micro Letters 2025年第5期17卷 508-524页

作者： Xuewen Han Cheng Hao Yukang Peng Han Yu Tao Zhang Haonan Zhang Kaiwen Chen Heyu Chen Zhenxing Wang Ning Yan Junwen Pu Beijing Key Laboratory of Lignocellulosic Chemistry College of Materials Science and TechnologyBeijing Forestry UniversityBeijing 100083People’s Republic of China Department of Chemical Engineering and Applied Chemistry University of TorontoTorontoON M5S3E5Canada Key Laboratory of Advanced Marine Materials Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201People’s Republic of China College of Mechanical and Electronic Engineering Northwest A&F UniversityYangling 712100ShaanxiPeople’s Republic of China Jiangsu Provincial Key Lab of Sustainable Pulp and Paper Technology and Biomass Materials Nanjing Forestry UniversityNanjing 210037People’s Republic of China Co-Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing Forestry UniversityNanjing 210037People’s Republic of China

In an era where technological advancement and sustainability converge,developing renewable materials with multifunctional integration is increasingly in *** study filled a crucial gap by integrating energy storage,multi-band electromagnetic interference(EMI)shielding,and structural design into bio-based ***,conductive polymer layers were formed within the 2,2,6,6-tetramethylpiperidine-1-oxide(TEMPO)-oxidized cellulose fiber skeleton,where a mild TEMPO-mediated oxidation system was applied to endow it with abundant macropores that could be utilized as active sites(specific surface area of 105.6 m2 g-1).Benefiting from the special hierarchical porous structure of the material,the constructed cellulose fiber-derived composites can realize high areal-specific capacitance of 12.44 F cm^(-2)at 5 m A cm^(-2)and areal energy density of 3.99 m Wh cm^(-2)(2005 m W cm^(-2))with an excellent stability of maintaining 90.23%after 10,000 cycles at 50 m A cm^(-2).Meanwhile,the composites showed a high electrical conductivity of 877.19 S m-1 and excellent EMI efficiency(>99.99%)in multiple wavelength *** composite material’s EMI values exceed 100 d B across the L,S,C,and X bands,effectively shielding electromagnetic waves in daily *** proposed strategy paves the way for utilizing bio-based materials in applications like energy storage and EMI shielding,contributing to a more sustainable future.

关键词： Cellulose fiber skeleton TEMPO mediated oxidation In-situ polymerization Multi-band EMI shielding Energy storage

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Symmetric high-performance transport in n- and p-type HfSnS3 nanowire gate-all-around transistors toward sub-5-nm electronics

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Physical Review Applied 2025年第4期23卷 044002-044002页

作者： Chuyao Chen Jialin Yang Hengze Qu Wenhan Zhou Tingting Guo Weicong Sun Xiufeng Song MIIT Key Laboratory of Advanced Display Materials & Devices Jiangsu Engineering Research Center for Quantum Dot Display College of Materials Science and Engineering Institute of Optoelectronics & Nanomaterials Nanjing University of Science and Technology Nanjing Jiangsu 210094 China

Gate-all-around (GAA) configurations with superior electrostatics and scaling potential are recognized as an ultimate solution for the post-Moore complementary metal oxide semiconductor (CMOS) circuits. In this case, nanowires (NWs) with a natural dangling-bond-free surface are one of the most promising channel candidates for the ultrascaled GAA field-effect transistors (FETs). Herein, we propose that the HfSnS3 NWs are very attractive channel materials for sub-5-nm GAA FETs, exhibiting excellent n- and p-type symmetric behaviors. In particular, holding ultrahigh phonon-limited carrier mobilities, the sub-5-nm HfSnS3 NW n- and p-FETs far surpass the International technology Roadmap for Semiconductors high-performance requirements. The on-current can exceed 1000 µA μm−1 even for 3-nm nodes while maintaining an excellent n- and p-type performance ratio close to 1. Furthermore, we reveal that the superior subthreshold swing control capability of the HfSnS3 NW p-FETs is attributed to the px-orbital-induced heavy-hole effective mass. This advantage can be attractive, especially for the further scaling of CMOS technology. Meanwhile, the power and delay of the HfSnS3 NW FETs are assessed to ensure their fast-switching and energy-efficient behaviors. Our results suggest that HfSnS3 NW FETs with superior and symmetric transport performance possess promising prospects for future sub-5-nm GAA complementary transistors.

关键词： III-V semiconductors

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Target Defense with Multiple Defenders and an Agile Attacker via Residual Policy Learning

arXiv

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arXiv 2025年

作者： Tao, Jiyue Shen, Tongsheng Zhao, Dexin Zhang, Feitian Robotics and Control Laboratory Department of Advanced Manufacturing and Robotics College of Engineering and the State Key Laboratory of Turbulence and Complex Systems Peking University Beijing100871 China National Innovation Institute of Defense Technology Beijing100071 China

The target defense problem involves intercepting an attacker before it reaches a designated target region using one or more defenders. This letter focuses on a particularly challenging scenario in which the attacker is more agile than the defenders, significantly increasing the difficulty of effective interception. To address this challenge, we propose a novel residual policy framework that integrates deep reinforcement learning (DRL) with the force-based Boids model. In this framework, the Boids model serves as a baseline policy, while DRL learns a residual policy to refine and optimize the defenders’ actions. Simulation experiments demonstrate that the proposed method consistently outperforms traditional interception policies, whether learned via vanilla DRL or fine-tuned from force-based methods. Moreover, the learned policy exhibits strong scalability and adaptability, effectively handling scenarios with varying numbers of defenders and attackers with different agility levels. Copyright © 2025, The Authors. All rights reserved.

关键词： Adversarial machine learning

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Advances in human organs-on-chips and applications for drug screening and personalized medicine

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Fundamental Research 2025年第3期5卷 1258-1272页

作者： Zhou, Chenyang Li, Zhangjie Lu, Kangyi Liu, Yijun Xuan, Lian Mao, Hongju Wang, Xiaolin Department of Micro/Nano Electronics School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 China Institute of Medical Robotics Shanghai Jiao Tong University Shanghai 200240 China State Key Laboratory of Transducer Technology Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 China National Key Laboratory of Advanced Micro and Nano Manufacture Technology Shanghai Jiao Tong University Shanghai 200240 China National Center for Translational Medicine (Shanghai) SHU Branch Shanghai University Shanghai 200444 China

The limitations of conventional animal tests and two-dimensional cell culture hinder their advancement in fundamental research and clinical/translational applications. As an emerging alternative technology, organ-on-a-chip serves as a platform that faithfully simulates the key phenotypical, physiological, and functional features of human tissues/organs through the accurate regulation of the parameters such as physical and biochemical microenvironment, as well as cellular patterns. In this review, we mainly introduce the recent progress in the organ-on-a-chip field, including lung, gut, heart, liver, vasculature and multiorgan studies. Furthermore, we highlight the potential applications in drug screening and personalized medicine. Finally, we conclude by addressing the current challenges and future perspective in the technology and commercialization of organ-on-chips. We anticipate that the development of organ-on-a-chip technology will revolutionize the studies on biology and medicine by providing new understanding of mechanisms of diseases and insights into clinical therapeutics. © 2024

关键词： Drug screening Microfluidics Organ-on-a-chip Personalized medicine

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Optimized Yolov8 feature fusion algorithm for dental disease detection

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Computers in Biology and Medicine 2025年 187卷 109778-109778页

作者： Wang, Qimeng Zhu, Xingfei Sun, Zhaofei Zhang, Bufan Yu, Jinghu Qian, Shanhua Jiangnan University Jiangsu Wuxi214122 China The Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology Jiangsu Wuxi214122 China IBISC Univ. Evry Université Paris-Saclay Paris91000 France

In oral panoramic film dental disease detection, image magnification distortion and low contrast often result in unclear details and features of target regions, increasing the difficulty of accurate detection. Although mainstream object detection algorithms have shown excellent performance in various fields, their direct application to dental disease detection has been suboptimal. To address these challenges, this study proposes an improved YEM-SAFN model to enhance the recognition of dental conditions. The proposed model incorporates a novel small-target network structure to address the multi-scale and significant size differences of targets in dental disease detection. Additional detection heads for different scales were introduced to improve the model's ability to recognize various dental diseases effectively. To mitigate the issue of tissue offset or overlap in panoramic dental films, the HCSA attention mechanism was integrated, enabling the model to focus on feature extraction in disease-specific regions. Additionally, a redesigned weighted fusion module enhances the utilization of features across scales, improving the model's feature representation capability. The improved YEM-SAFN algorithm achieves a 3.2 % increase in mAP compared to the original YOLOv8s algorithm, attaining an mAP of 86.7 % and outperforming other mainstream algorithms. This model provides an efficient and accurate method for dental condition identification and diagnosis. © 2025 Elsevier Ltd

关键词： Oral panoramic slices YOLOv8s Object detection Small objects Attention mechanism Weighted fusion

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Inhibition of KDM6B prevents osteoarthritis by blocking growth plate-like H3K27me3 loss in bivalent genes

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Science China Life Sciences 2025年第5期68卷 1423-1436页

作者： Hao Du Yao Zhang Xi Yu Xuanhe You Diwei Wu Ze Du Yongrui Cai Zhenyu Luo Hanpeng Lu Zhixin Liao Bi-Sen Ding Ya Zhao Yan Wang Ke Xiao Fan Yang Fangji Gan Ning Ning Jiancheng Zeng Peiliang Shi Zongke Zhou Shishu Huang Department of Orthopedic Surgery and Orthopedic Research Institute West China HospitalSichuan University Rehabilitation Medicine Center West China HospitalSichuan University Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE State Key Laboratory of BiotherapyWest China Second University HospitalSichuan University Institute of Translational Medicine Medical CollegeYangzhou University Jiangsu Key Laboratory of Experimental & Translational Non-coding RNA Research College of Animal Science and Technology Sichuan Agricultural University Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province Sichuan Agricultural University Department of Lower Limb Surgery of Sichuan Province Orthopedic Hospital Central Laboratory of Sichuan Province Orthopedic Hospital Brain Cognition and Brain Disease Institute (BCBDI) Shenzhen Institute of Advanced TechnologyChinese Academy of Sciences (CAS)Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions School of Mechanical Engineering Sichuan University Gem Pharmatech (Chengdu) Co. Ltd.

Osteoarthritis(OA) is the most prevalent joint disorder occurring with articular cartilage degradation. It includes a switch from an articular to a growth plate chondrocyte phenotype. Here, we investigated the histone modification profiles and found significant H3K27me3 loss in OA, which led to disease-associated gene expression. Surprisingly, these genes were occupied by both H3K27me3 and H3K4me3 in normal chondrocytes, showing a poised bivalent state. Furthermore, we observed the derepression of similar bivalent genes in growth plate chondrocytes. Finally, a KDM6B inhibitor GSK-J4 prevented the H3K27me3 loss and cartilage damage in the rat OA model. Our results reveal an inherited bivalent epigenetic signature on developmental genes that makes articular chondrocytes prone to hypertrophy and contributes to a promising epigenetic therapy for OA.

关键词： osteoarthritis histone modifications H3K27me3 bivalency growth plate

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Co-wavelength-channel integration of ultra-low-frequency distributed acoustic sensing and high-capacity communication

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Photonics Research 2025年第6期13卷 1611-1619页

作者： Long Gu Chaocheng Liu Meng Xiang Pengbai Xu Hailin Yang Wei Sun Jun Yang Songnian Fu Yuncai Wang Yuwen Qin Institute of Advanced Photonics Technology School of Information Engineering Key Laboratory of Photonic Technology for Integrated Sensing and Communication Ministry of Education Guangdong Provincial Key Laboratory of Information Photonics Technology Guangdong University of Technology Guangzhou 510006 China Jiangsu Alpha Optic-electric Technology Co. Ltd. Suzhou 215200 China

Integrating distributed ultra-low-frequency vibration sensing and high-speed fiber optical communication can provide additional functionality under the current submarine telecommunication network, such as ocean seismic monitoring and geological exploration. This work demonstrates an integrated sensing and communication (ISAC) system utilizing the same wavelength channel over a 38 km seven-core fiber for concurrent large-capacity transmission and ultra-low-frequency distributed acoustic sensing. Specifically, the digital subcarrier multiplexing (DSM) signal and the chirped-pulse sensing signal are frequency division multiplexed at the same wavelength channel, under the condition of the optimal protection interval bandwidth, relying on the DSM flexibility in spectral allocation. As a result, we successfully achieve a sensitivity of both 3.89 n ε / Hz @ 0.1 Hz and 0.18 nε / Hz @ 10 Hz under a spatial resolution of 20 m, under the framework of direct detection and cross-correlation demodulation. Meanwhile, a transmission capacity record of 241.85 Tb/s is secured for the ISAC when wavelength and space division multiplexed DP-16QAM DSM signals are successfully transmitted to reach the 20% soft-decision feedforward correction coding threshold of 2 × 10 − 2 .

关键词： Fiber optic communications Frequency division multiplexing Optical networks Phase recovery Signal transmission Space division multiplexing

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Unsaturated cobalt single-atoms stabilized by silanol nests of zeolites for efficient propane dehydrogenation

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Chinese Journal of Catalysis 2025年第5期72卷 323-333页

作者： Liwen Guo Dao Shi Tianjun Zhang Yanhang Ma Guodong Qi Jun Xu Qiming Sun Innovation Center for Chemical Science College of ChemistryChemical Engineering and Materials ScienceJiangsu Key Laboratory of Advanced Negative Carbon TechnologiesSoochow UniversitySuzhou 215123JiangsuChina State Key Laboratory of New Pharmaceutical Preparations and Excipients College of Chemistry and Materials ScienceHebei UniversityBaoding 071002HebeiChina School of Physical Science and Technology&Shanghai Key Laboratory of High-resolution Electron Microscopy ShanghaiTech UniversityShanghai 201210China National Center for Magnetic Resonance in Wuhan State Key Laboratory Magnetic Resonance and Atomic Molecular PhysicsWuhan Institute of Physics and MathematicsInnovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhan 430071HuebiChina

Propane dehydrogenation(PDH)has emerged as a key on-purpose technology for the production of propylene,but it often depends on toxic chromium and expensive platinum catalysts,highlighting the need for environmentally friendly and cost-effective *** this study,we developed a facile impregnation method to fabricate unsaturated Co single-atoms with a tricoordinated Co_(1)O_(3)H_(x) structure by regulating silanol nests in purely siliceous Beta *** PDH catalytic tests and characterizations revealed a positive correlation between the presence of silanol nests and enhanced catalytic ***,the unsaturated Co single-atoms exhibited a carbon deposition rate more than an order of magnitude slower than that of Co ***,the optimized Co_(0.3%)/deAl-meso-Beta catalyst achieved a record-high propylene formation rate of 21.2 mmol_(C3H6) g_(cat)^(-1) h^(-1),with an exceptional propylene selectivity of 99.1%at 550℃.Moreover,the Co_(0.3%)/deAl-meso-Beta catalyst demonstrated excellent stability,with negligible deactivation after 5 consecutive regeneration *** study emphasizes the pivotal role of silanol nests of zeolites in stabilizing and modulating the coordination environment of metallic active sites,providing valuable insights for the design of high-activity,high-stability,and low-cost PDH catalysts.

关键词： Propane dehydrogenation Unsaturated cobalt Single-atoms Silanol nest Zeolite

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Pulse Signal Acquisition Using Flexible Sensing Dense Array with High Spatial Resolution

Pulse Signal Acquisition Using Flexible Sensing Dense Array ...

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IEEE International Conference on Micro Electro Mechanical Systems

作者： Yue He Ke Sun Fang Wang Tiger H Tao Heng Yang Yi Sun Quan Wang Xinxin Li Zhenjiang Key Laboratory of Advanced Sensing Materials and Devices Jiangsu University Zhenjiang China State Key Laboratory of Transducer Technology Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai China

ISBN: (数字)9798331508890

ISBN: (纸本)9798331508906

This paper reports a pressure sensing array with high spatial resolution, which, in combination with the proposed cross-sectional feature algorithm, enables measurements with a positional accuracy of at least 0.1 mm. For the first time in human pulse wave testing experiments, we have visualized the lateral offset of the pulse wave. In addition, we found that some people, such as patients with fever and pain, have slightly larger pulse wave offsets than others, which may be described as ‘tight pulse’ in traditional Chinese medicine (TCM).

关键词： Accuracy Pulse measurements Shape Shape measurement Position measurement Time measurement Spatial resolution Arteries Sensor arrays Testing

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