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Surface-enhanced fully nanofiber-based self-cleanable ultraviolet resistive triboelectric energy harvester for wearable smart garments

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Nano Energy 2023年 113卷

作者： Venkatesan, Manikandan Chandrasekar, Jayashree Liang, Fang-Cheng Lin, Wei-Chun Chen, Wei-Cheng Cho, Chia-Jung Chen, Yi-Ting Lee, Wen-Ya Su, Chaochin Zhou, Ye Lai, Ying-Chih Kuo, Chi-Ching Institute of Organic and Polymeric Materials Research and Development Center of Smart Textile Technology National Taipei University of Technology Taipei10608 Taiwan Department of Chemical Engineering and Advanced Research Center for Green Materials Science and Technology National Taiwan University Taipei10617 Taiwan Institute of Biotechnology and Chemical Engineering I-Shou University Kaohsiung84001 Taiwan Department of Materials Science and Engineering National Chung Hsing University Taichung40227 Taiwan Department of Chemical Engineering and Biotechnology National Taipei University of Technology Taipei10608 Taiwan Institute for Advanced Study Shenzhen University Shenzhen518060 China

Wearable triboelectric nanogenerators (TENGs) with high electrical performance have recently prompted great expectations. However, charge diffusion and recombination affect the electric field strength, resulting in a weak electrostatic potential in the displacement region. Current research on film-type dielectric interlayers indicates that charge trapping can prevent charge recombination, although surface charge air breakdown has not been addressed, and becomes a crucial demand in wearable energy applications. In the present study, the surface charge density of poly(vinylidene fluoride) (PVDF) nanofibers is greatly improved by co-electrospraying PDMS-PVDF (PDPV) charge-trapping microbeads;this new approach prolongs the lifetime of surface charges. In particular, the PDPV beads prevent charge recombination, and the interlocking mechanism enhances the tensile property of the PVDF nanofibers. These result in a two-fold increase in the open-circuit voltage and peak power density to 305 V and 124.3 mW m−2, respectively. The device is successfully employed in portable electronic gadgets. Ag-nanoparticle-grafted styrene-butadiene-styrene (SBS) fiber is used as an electrode because it has favorable stretchability with low resistance and is antibacterial. The addition of TiO2/multiwalled carbon nanotube to PVDF nanofiber membrane shows excellent electricfield-induced photocatalyst and ultraviolet protection. Our surface-enhanced fully fiber-based TENG is a promising energy harvester for flexible smart garments applications. © 2023 Elsevier Ltd

关键词： Nanofibers

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SUMI-IFL: An Information-Theoretic Framework for Image Forgery Localization with Sufficiency and Minimality Constraints 39

SUMI-IFL: An Information-Theoretic Framework for Image Forge...

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39th Annual AAAI Conference on Artificial Intelligence, AAAI 2025

作者： Sheng, Ziqi Lu, Wei Luo, Xiangyang Zhou, Jiantao Cao, Xiaochun School of Computer Science and Engineering MoE Key Laboratory of Information Technology Guangdong Province Key Laboratory of Information Security Technology Sun Yat-sen University China State Key Laboratory of Mathematical Engineering and Advanced Computing China State Key Laboratory of Internet of Things for Smart City Department of Computer and Information Science University of Macau Macao School of Cyber Science and Technology Shenzhen Campus of Sun Yat-sen University China

ISBN: (纸本)157735897X

Image forgery localization (IFL) is a crucial technique for preventing tampered image misuse and protecting social safety. However, due to the rapid development of image tampering technologies, extracting more comprehensive and accurate forgery clues remains an urgent challenge. To address these challenges, we introduce a novel information-theoretic IFL framework named SUMI-IFL that imposes sufficiency-view and minimality-view constraints on forgery feature representation. First, grounded in the theoretical analysis of mutual information, the sufficiency-view constraint is enforced on the feature extraction network to ensure that the latent forgery feature contains comprehensive forgery clues. Considering that forgery clues obtained from a single aspect alone may be incomplete, we construct the latent forgery feature by integrating several individual forgery features from multiple perspectives. Second, based on the information bottleneck, the minimality-view constraint is imposed on the feature reasoning network to achieve an accurate and concise forgery feature representation that counters the interference of task-unrelated features. Extensive experiments show the superior performance of SUMI-IFL to existing state-of-the-art methods, not only on in-dataset comparisons but also on cross-dataset comparisons. © 2025, Association for the Advancement of Artificial Intelligence (***). All rights reserved.

关键词： Correlation theory

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On Scheduling a Photolithograhy Toolset Based on a Deep Reinforcement Learning Approach with Action Filter

On Scheduling a Photolithograhy Toolset Based on a Deep Rein...

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2021 Winter Simulation Conference, WSC 2021

作者： Kim, Taehyung Kim, Hyeongook Lee, Tae-Eog Morrison, James Robert Kim, Eungjin Korea Advanced Institute of Science and Technology Department of Industrial and Systems Engineering Daejeon34141 Korea Republic of School of Engineering Technology Central Michigan University Mt Pleasant MI48859 United States Samsung Display Company Smart IT Team Chungcheongnam-Do Asan-si31454 Korea Republic of

ISBN: (纸本)9781665433112

Production scheduling of semiconductor manufacturing tools is a challenging problem due to the complexity of the equipment and systems in modern wafer fabs. In our study, we focus on the photolithography toolset and consider it as a non-identical parallel machine scheduling problem with random lot arrivals and auxiliary resource constraints. The proposed methodology strives to learn a near optimal scheduling policy by incorporating WIP, masks, and the tardiness of jobs. An Action Filter (AF) is proposed as a methodology to eliminate illogical actions and speed the learning process of agents. The proposed model was evaluated in a simulation environment inspired by practical photolithography scheduling problems across various settings with reticle and qualification constraints. Our experiments demonstrated improved performance compared to typical rule-based strategies. Relative to our learning methods, weighted shortest processing time (WSPT) and apparent tardiness cost with setups (ATCS) rules perform 28% and 32% worse for weighted tardiness, respectively. © 2021 IEEE.

关键词： Photolithography

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Correction to: Where to go for the Development of High‑Performance H2 Storage Materials at Ambient Conditions?

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Electronic Materials Letters 2022年第6期19卷 598-599页

作者： So, Soon Hyeong Sung, Sae Jin Yang, Seung Jae Park, Chong Rae Carbon Nanomaterials Design Laboratory Department of Materials Science and Engineering Research Institute of Advanced Materials Seoul National University Seoul Republic of Korea Division of Advanced Materials Korea Research Institute of Chemical Technology Daejeon Republic of Korea Advanced Nanohybrids Laboratory Department of Chemistry and Chemical Engineering Education and Research Center for Smart Energy and Materials Inha University Incheon Republic of Korea

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Investigation of process parameter influence on the mechanical properties of FDM-printed PEEK-carbon fiber composites using RSM and Taguchi methods

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Journal of Materials Research and technology 2025年 36卷 10199-10209页

作者： Muhammad Nasir Bashir Joon Sang Lee Mohammed A. Bou-Rabee Heba G. Mohamed Ding Zhou Irfan Anjum Badruddin M.A. Fazal Zafar Masood Multi-Scale Fluid Dynamics Lab Department of Mechanical Engineering Yonsei University Seoul 120-749 Republic of Korea National University of Sciences and Technology Islamabad Pakistan Department of Mechanical Engineering University of Malaya 50603 Kuala Lumpur Malaysia Center for Precision Medicine Platform Based on Smart Hemo-Dynamic Index (SHDI) Seoul 03722 Republic of Korea Department of Electrical Engineering College of Technical Studies PAAET Safat 13092 Kuwait Department of Electrical Engineering College of Engineering Princess Nourah bint Abdulrahman University P.O. Box 84428 Riyadh 11671 Saudi Arabia Centre of Advanced Materials Department of Mechanical Engineering Faculty of Engineering Universiti Malaya Kuala Lumpur 50603 Malaysia Mechanical Engineering Department College of Engineering King Khalid University Abha 61421 Saudi Arabia Department of Mechanical and Materials Engineering University of Jeddah Saudi Arabia Parsons Corporation Riyadh Saudi Arabia

The mechanical performance of FDM-printed high-performance polymers like carbon fibre-reinforced PEEK remains sensitive to process parameters, limiting their reliability in structural applications. The present study addresses this challenge by investigating the influence of printing speed, layer thickness, and infill density on tensile, flexural, and compressive strengths. Using Response Surface Methodology (RSM) and Taguchi analysis, predictive models were developed and statistically validated through ANOVA. The models were highly reliable, with R 2 values above 0.94 across all strength modes. Print speed and infill density had the greatest impact on tensile, flexural and compression strength, while layer thickness also played a significant role. Lower printing speeds and higher infill densities resulted in strength materials with better interlayer adhesion and fewer internal defects. The models can improve the mechanical performance of FDM printed parts by optimising process parameters across multiple objectives. This research has significant implications for aerospace, biomedical, and structural applications that require reliable and strong components.

关键词： PEEK-carbon fibre composite FDM Mechanical strength Process optimisation

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The marriage of sealant agent between structure transformable silk fibroin and traditional Chinese medicine for faster skin repair

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Chinese Chemical Letters 2022年第3期33卷 1599-1603页

作者： Rongjun Zhang Youbin Zheng Tianqing Liu Ning Tang Lianzhi Mao Lihan Lin Jiahui Ye Luoyijun Xie Wenwen Hu Weiwei Wu Wenzhen Liao Miaomiao Yuan The Eighth Affiliated Hospital Sun Yat-sen UniversityShenzhen 518033China Institute of Molecular Medicine(IMM) Renji HospitalShanghai Jiao Tong University School of MedicineShanghai 200240China Department of Chemical Engineering and Russell Berrie Nanotechnology Institute Technion-Isr1ael Institute of TechnologyHaifa 3200003Israel School of Advanced Materials and Nanotechnology Interdisciplinary Research Center of Smart SensorsXidian UniversityXi'an 710126China Department of Nutrition and Food Hygiene School of Public HealthSouthern Medical UniversityGuangzhou 510515China

Fast skin repair is critical for less infection, less pain and high quality of life, which is still limited with undesirable rehabilitation speed and side effects. Currently, laser-activated silk sealant agent without suture and gauze has been demonstrated promising for fast skin repair taking advantage of its structural transformation after heating. Nevertheless, more efficient healing effects and less side effects of laseractivated silk sealant agent remains challenging due to absence of suitable photo-thermal materials and robust/biomimetic protein materials. In this work, the marriage between silk protein and Rehmanniae radix preparata(a kind of the traditional Chinese herb) has been demonstrated as a novel and effective way to achieve an excellent healing effect for skin repair. The non-toxicity, high photothermal conversion efficiency and healing mechanism are systematically studied and proved. This new methodology might shed a new light for combining dark traditional Chinese medicine and silk fibroin for advanced wound healing technology.

关键词： Rehmanniae radix preparata Silk fibroin Sealant agent Photo-thermal effect Skin repair

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Breakdown of effective-medium theory by a photonic spin Hall effect

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Science China(Physics,Mechanics & Astronomy) 2023年第11期66卷 145-154页

作者： Shuaijie Yuan Xinxing Zhou Yu Chen Yuhan Zhong Lijuan Sheng Hao Hu Hongsheng Chen Ido Kaminer Xiao Lin Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Synergetic Innovation Center for Quantum Effects and ApplicationsSchool of Physics and ElectronicsHunan Normal UniversityChangsha410081China International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong ProvinceInstitute of Microscale OptoelectronicsShenzhen UniversityShenzhen518060China Interdisciplinary Center for Quantum Information State Key Laboratory of Extreme Photonics and InstrumentationZJU-Hangzhou Global Scientific and Technological Innovation CenterZhejiang UniversityHangzhou310027China International Joint Innovation Center Electromagnetics Academy at Zhejiang UniversityZhejiang UniversityHaining314400China School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore639798Singapore Key Laboratory of Radar Imaging and Microwave Photonics Ministry of EducationCollege of Electronic and Information EngineeringNanjing University of Aeronautics and AstronauticsNanjing211106China Key Laboratory of Advanced Micro/Nano Electronic Devices&Smart Systems of Zhejiang Jinhua Institute of Zhejiang UniversityZhejiang UniversityJinhua321099China Shaoxing Institute of Zhejiang University Zhejiang UniversityShaoxing312000China Department of Electrical Engineering Technion-Israel Institute of TechnologyHaifa32000Israel

Effective-medium theory pertains to the theoretical modelling of homogenization,which aims to replace an inhomogeneous structure of subwavelength-scale constituents with a homogeneous effective *** effective-medium theory is fundamental to various realms,including electromagnetics and material science,since it can largely decrease the complexity in the exploration of light-matter interactions by providing simple acceptable ***,the effective-medium theory is thought to be applicable to any all-dielectric system with deep-subwavelength constituents,under the condition that the effective medium does not have a critical angle,at which the total internal reflection *** we reveal a fundamental breakdown of the effective-medium theory that can be applied in very general conditions:showing it for deep-subwavelength all-dielectric multilayers even without a critical *** finding relies on an exotic photonic spin Hall effect,which is shown to be ultrasensitive to the stacking order of deep-subwavelength dielectric layers,since the spin-orbit interaction of light is dependent on slight phase accumulations during the wave *** results indicate that the photonic spin Hall effect could provide a promising and powerful tool for measuring structural defects for all-dielectric systems even in the extreme nanometer scale.

关键词： photonic spin Hall effect effective-medium theory spin-orbit interaction of light

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Harnessing Outer Space for Improved Electrocaloric Cooling

SSRN

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SSRN 2024年

作者： Seo, Dong Hyun Kim, Hyung Rae Yun, Joo Ho Kim, Do Hyeon Heo, Se-Yeon Ma, Rujun Lee, Gil Ju Song, Young Min School of Electrical Engineering and Computer Science Gwangju Institute of Science and Technology Gwangju61005 Korea Republic of School of Materials Science and Engineering National Institute for Advanced Materials Smart Sensing Interdisciplinary Science Center Nankai University Tianjin300350 China Department of Electronics Engineering Pusan National University Busan46241 Korea Republic of AI Graduate School Gwangju Institute of Science and Technology Gwangju61005 Korea Republic of

Solid-state refrigeration, exploiting the electrocaloric (EC) effect, has sparked substantial interest due to its minimal energy consumption and zero-carbon emissions. However, one challenge to solid-state refrigeration technology resides in the limitation of cooling performance by the adiabatic temperature change (ΔT) inherent to caloric materials. To fully replace the traditional cooling technology, an augmentation of the innate heat dissipation capability beyond the intrinsic properties of the material is essential. In this study, we pioneer a method to transcend the native heat dissipation threshold of EC, by implementing a novel radiative heat sink/source-integrated electrocaloric (R-iEC) thermal regulation system. This system ingeniously leverages the outer cold space as a heat sink without energy. Moreover, a non-metallic thermally conductive radiative cooler (TCRC) is implemented with both a high thermal conductivity of 1.1 W/mK and exceptional spectral features (i.e., solar reflectivity ~96% and emissivity ~95% in atmospheric window region). The R-iEC system fortified with the TCRC demonstrates superior heat dissipation relative to conventional EC and radiative cooling, with an extra cooling heat flux of 87 W/m2. This improvement yields a temperature decrease of the heat source by 7.3 K relative to ambient temperature, showcasing the potential for a novel and zero-carbon emission cooling system. © 2024, The Authors. All rights reserved.

关键词： Heat flux

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Pillararene-based supramolecular systems for theranostics and bioapplications

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Science China Chemistry 2021年第5期64卷 688-700页

作者： Huangtianzhi Zhu Qi Li Laila E.Khalil-Cruz Niveen M.Khashab Guocan Yu Feihe Huang State Key Laboratory of Chemical Engineering Key Laboratory of Excited-State Materials of Zhejiang ProvinceDepartment of ChemistryZhejiang UniversityHangzhou 310027China Smart Hybrid Materials Laboratory(SHMs) Advanced Membranes and Porous Materials CenterKing Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia Green Catalysis Center and College of Chemistry Zhengzhou UniversityZhengzhou 450001China

As an emerging type of important macrocycles for supramolecular chemistry,pillararenes and their derivatives have been widely studied and applied in numerous fields,which intensively promotes the development of chemistry,materials science and ***-based theranostic systems are of special interest in the biological and medical areas as they have shown very promising *** to easy preparation,reliable guest affinity,good biocompatibility and stability,pillararenes are frequently used to construct functional *** one hand,pillararenes can either be used individually or form diversiform self-assemblies such as micelles,nanoparticles and vesicles to increase water solubility and biocompatibility of *** the other hand,it is promising to modify solid materials like framework materials,silica nanoparticles and graphene oxides with pillararene derivatives to enhance their functions and *** this review,we summarize recent endeavors of pillararene-based supramolecular systems with theranostics and other biological applications comprising drug delivery/chemotherapy,photodynamic/photothermal therapy,antimicrobials,bioimaging,*** introducing several typical examples,the design principles,preparation strategies,identifications and bio-applications of these pillararene-based supramolecular systems are *** challenges and directions of this field are also outlined.

关键词： pillararenes self-assembly theranostics drug delivery supra-amphiphiles

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RaCMC: Residual-Aware Compensation Network with Multi-Granularity Constraints for Fake News Detection

arXiv

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arXiv 2024年

作者： Yu, Xinquan Sheng, Ziqi Lu, Wei Luo, Xiangyang Zhou, Jiantao School of Computer Science and Engineering Ministry of Education Key Laboratory of Information Technology Guangdong Province Key Laboratory of Information Security Technology Sun Yat-sen University Guangzhou510006 China State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou450002 China State Key Laboratory of Internet of Things for Smart City The Department of Computer and Information Science Faculty of Science and Technology University of Macau 999078 China

Multimodal fake news detection aims to automatically identify real or fake news, thereby mitigating the adverse effects caused by such misinformation. Although prevailing approaches have demonstrated their effectiveness, challenges persist in cross-modal feature fusion and refinement for classification. To address this, we present a residual-aware compensation network with multi-granularity constraints (RaCMC) for fake news detection, that aims to sufficiently interact and fuse cross-modal features while amplifying the differences between real and fake news. First, a multiscale residual-aware compensation module is designed to interact and fuse features at different scales, and ensure both the consistency and exclusivity of feature interaction, thus acquiring high-quality features. Second, a multi-granularity constraints module is implemented to limit the distribution of both the news overall and the image-text pairs within the news, thus amplifying the differences between real and fake news at the news and feature levels. Finally, a dominant feature fusion reasoning module is developed to comprehensively evaluate news authenticity from the perspectives of both consistency and inconsistency. Experiments on three public datasets, including Weibo17, Politifact and GossipCop, reveal the superiority of the proposed method. Copyright © 2024, The Authors. All rights reserved.

关键词： Fake detection

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