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Intelligent interaction system based on multimodal conformal triboelectric nanogenerator patch for disabled sports and life

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Science China Technological Sciences 2025年

作者： Yuzhang WEN Mengqi ZHANG Zhenning XIE Zida AN Bing LIU fengxin sun Tianming ZHAO Zuojun YU Fei WANG Yupeng MAO Physical Education Department Northeastern University(Shenyang) Faculty of Robot Science and Engineering Northeastern University Criminal Investigation Police University of China State Key Laboratory of Robotics Shenyang Institute of Automation Chinese Academy of Sciences China Ice Sports College Beijing Sport University

Intelligent interaction technology based on advanced sensing units has become a research hotspot. In this paper, an intelligent interaction system (IIS) based on a multimodal conformal triboelectric nanogenerator patch (MCTP) is reported for sports monitoring and life promotion of the disabled. This IIS consists of a cloud-based smart sports recognition program and a smart life application. The porous micro-reinforced structure of polyurethane (PU) Sponge&Ecoflex, and the surface modification of PTFE by coating it with MXene endows the MCTP with excellent electrical properties. It shows good angle and force sensitivities of 1.1 V/°and 1.61 V/N, respectively, and has an ultra-fast response time of 15 ms, meeting the needs of human motion monitoring. The MCTP can also capture the mechanical energy, producing a maximum output power of 139μ*** with the commercial inertial measuring unit (IMU), the MCTP shows better consistency in human joint angle sensing. A precise analysis of wheelchair curling sports monitoring points is achieved by combining the MCTP and the human anatomy model. The cloud-based smart sports recognition program utilizes machine learning to achieve visual feedback on the three throwing technologies of draw, takeout and clearing. In addition, the developed smart life application uses a highsensitivity MCTP-sensor array design to achieve a variety of smart home interactions through simple finger touches. Overall,the IIS integrates the three major functions of smart sports sensing, energy capture, and smart home control, providing important application prospects in the fields of smart sports and human-computer interaction for the disabled.

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A Dimension-Splitting Variational Multiscale Element-Free Galerkin Method for Three-Dimensional Singularly Perturbed Convection-Diffusion Problems

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Computer Modeling in Engineering & Sciences 2023年第4期135卷 341-356页

作者： Jufeng Wang Yong Wu Ying Xu fengxin sun College of Finance&Information Ningbo University of Finance&EconomicsNingbo315175China Faculty of Science Ningbo University of TechnologyNingbo315016China

By introducing the dimensional splitting(DS)method into the multiscale interpolating element-free Galerkin(VMIEFG)method,a dimension-splitting multiscale interpolating element-free Galerkin(DS-VMIEFG)method is proposed for three-dimensional(3D)singular perturbed convection-diffusion(SPCD)*** the DSVMIEFG method,the 3D problem is decomposed into a series of 2D problems by the DS method,and the discrete equations on the 2D splitting surface are obtained by the VMIEFG *** improved interpolation-type moving least squares(IIMLS)method is used to construct shape functions in the weak form and to combine 2D discrete equations into a global system of discrete equations for the three-dimensional SPCD *** solved numerical example verifies the effectiveness of the method in this paper for the 3D SPCD *** numerical solution will gradually converge to the analytical solution with the increase in the number of *** extremely small singular diffusion coefficients,the numerical solution will avoid numerical oscillation and has high computational stability.

关键词： Dimension-splitting multiscale interpolating element-free Galerkin(DS-VMIEFG)method interpolating variational multiscale element-free Galerkin(VMIEFG)method dimension splitting method singularly perturbed convection-diffusion problems

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High‑Performance Fasciated Yarn Artificial Muscles Prepared by Hierarchical Structuring and Sheath-Core Coupling for Versatile Textile Actuators

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Advanced Fiber Materials 2023年第4期5卷 1534-1547页

作者： Nan Sheng Yangyang Peng fengxin sun Jinlian Hu MOE Key Laboratory of Eco‑Textiles Jiangnan UniversityWuxi 214122China Department of Biomedical Engineering City University of Hong KongHong Kong S.A.R 999077China

High-performance yarn artificial muscles are highly desirable as miniature actuators,sensors,energy harvesters,and soft ***,achieving a yarn artificial muscle that covers all the properties of excellent actuation performance,mechanical robustness,structural stability,and high scalability by a low-cost strategy is still a great ***,a bio-inspired fasciated yarn structure is first reported for creating robust high-performance yarn artificial *** conventional strategies that leverage costly materials or complex processing,the developed yarn artificial muscles are constructed by hierarchically helical and sheath-core assembly design of cost-effective common fibers,such as viscose and *** hierarchically helical sheath structure pushes the theoretical limit of the inserted twist in yarns and endows the yarn muscles with large stroke(5815°cm^(-1))and high work capacity(23.5 J kg^(-1)).Due to the rapid water transfer and efficient energy conversion of inter-sheath-core coupling,the as-prepared yarn muscles possess fast response,high rotation accelerated speed,and low recovery ***,the inactive core yarn serves as support for internal tethering and load-bearing,enabling these yarn muscles to maintain a self-stable structure,robust life cycle and *** show that the yarn muscle fabricated in this method is readily available and highly scalable for achieving high-dimensional actuation deformations,which considerably broadens the application scenarios of artificial muscles.

关键词： Artificial muscles Hierarchical structuring Actuators Smart textiles

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Advances in self-powered sports monitoring sensors based on triboelectric nanogenerators

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Journal of Energy Chemistry 2023年第4期79卷 477-488页

作者： fengxin sun Yongsheng Zhu Changjun Jia Tianming Zhao Liang Chu Yupeng Mao Physical Education Department Northeastern UniversityShenyang 110819LiaoningChina Institute of Carbon Neutrality and New Energy&School of Electronics and Information Hangzhou Dianzi UniversityHangzhou 310018ZhejiangChina School of Strength and Conditioning Training Beijing Sport UniversityBeijing 100084China State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of ScienceShenyang 110016LiaoningChina Institutes for Robotics and Intelligent Manufacturing Chinese Academy of SciencesShenyang 110016LiaoningChina

The new era of the internet of things brings great opportunities to the field of intelligent *** collection and analysis of sports data are becoming more intelligent driven by the widely-distributed sensing network *** nanogenerators(TENGs)can collect and convert energy as selfpowered sensors,overcoming the limitations of external power supply,frequent power replacement and high-cost ***,we introduce the working modes and principles of TENGs,and then summarize the recent advances in self-powered sports monitoring sensors driven by TENGs in sports equipment facilities,wearable equipment and competitive sports *** discuss the existing issues,i.e.,device stability,material sustainability,device design rationality,textile TENG cleanability,sports sensors safety,kinds and manufacturing of sports sensors,and data collection comprehensiveness,and finally,propose the *** work has practical significance to the current TENG applications in sports monitoring,and TENG-based sensing technology will have a broad prospect in the field of intelligent sports in the future.

关键词： Triboelectric nanogenerator Wearable energy sensors Sport monitoring

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Bioinspired Stable Single‑Layer Janus Fabric with Directional Water/Moisture Transport Property for Integrated Personal Cooling Management

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Advanced Fiber Materials 2023年第1期5卷 138-153页

作者： Yifan Si Shuo Shi Zhichao Dong Hanbai Wu fengxin sun Jieqiong Yang Jinlian Hu Department of Biomedical Engineering City University of Hong KongHong Kong S.A.R 999077China CAS Key Laboratory of Bio‑Inspired Materials and Interfacial Sciences Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China Key Laboratory of Eco‑Textiles of Ministry of Education Jiangnan UniversityWuxi 214122China

Extensive progress has been achieved regarding Janus fabric for directional water transport due to its excellent and feasible personal cooling management ability,which has great significance for energy conservation,pollution reduction,and human ***,existing Janus asymmetric multilayer fabrics for directional water transport are still limited by their com-plicated syntheses and poor *** by the compositionally graded architecture of leaf cuticles,we propose a single-layer Janus personal cooling management fabric(JPCMF)via a one-step electrospinning *** JPCMF shows not only great directional bulk water transport ability but also asymmetry moisture(water vapor)transport ability with a high asymmetry factor(1.49),water vapor transmission value(18.5 kg^(-1) m-2 D-1),and water evaporation rate(0.735 g h^(-1)).Importantly,the JPCMF exhibits outstanding durability and stability thanks to a novel electrostatic adsorption-assisted self-adhesion strategy for resisting abrasion,peeling and *** these characteristics,the JPCMF can achieve a 4.0°C personal cooling management effect,better than taht of cotton fabric,on wet *** good biocompatibility and nontoxic-ity also endow the JPCMF with the potential to be a self-pumping *** strategy should facilitate a new method for developing next-generation intelligent multifunctional fabrics.

关键词： Cooling management Janus directional transport Electrospinning Superwettability bioinspired

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纤维基湿敏柔性驱动器的跨尺度构建及其性能

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纺织学报 2023年第2期44卷 90-95页

作者：彭阳阳盛楠孙丰鑫江南大学纺织科学与工程学院江苏无锡214122 江南大学纤维软材料实验室江苏无锡214122

针对目前纤维基人工肌肉普遍存在变形模式单一(主要为一维扭转和伸缩)、刺激条件苛刻、潜在的化学毒性或制造工艺复杂等问题,提出基于纤维聚集态结构及纤维体分级结构的跨尺度处理策略。通过结构设计将普通粘胶纤维制成快速响应、湿驱... 详细信息

针对目前纤维基人工肌肉普遍存在变形模式单一(主要为一维扭转和伸缩)、刺激条件苛刻、潜在的化学毒性或制造工艺复杂等问题,提出基于纤维聚集态结构及纤维体分级结构的跨尺度处理策略。通过结构设计将普通粘胶纤维制成快速响应、湿驱动的纱线人工肌肉,进一步通过集成不同的纺织技术与拓扑编织结构设计,实现纱线人工肌肉的机械化生产,并将一维纱线肌肉进一步扩展为二维的织物肌肉驱动器。结果表明:所制备的纱线人工肌肉实现了高达1657(°)/cm的扭转冲程,所制备的织物肌肉实现了更高维度的螺旋、卷曲、弯曲和扭转等运动。该制备方法无需任何复合系统、复杂的合成加工和组件设计,有利于促进纤维基人工肌肉在智能纺织品等多领域的应用与发展。

关键词：人工肌肉驱动器湿响应材料粘胶纤维智能纺织品织物肌肉

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耳鸣和情绪认知的相关性研究

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中华耳科学杂志 2016年第2期14卷 158-162页

作者：贾若孙凤新刘博首都医科大学附属北京同仁医院耳鼻咽喉头颈外科中心北京市耳鼻咽喉科研究所耳鼻咽喉科重点实验室(教育部) 北京市大兴区人民医院耳鼻喉科

目的针对耳鸣患者的情绪问题进行研究,探索耳鸣与情绪之间的相关性以及认知条件和影响因素。方法对以耳鸣为主诉的179例患者进行一般情况调查、纯音测听、声导抗检测,并使用耳鸣致残量表、汉密尔顿焦虑量表、汉密尔顿抑郁量表进行量化... 详细信息

目的针对耳鸣患者的情绪问题进行研究,探索耳鸣与情绪之间的相关性以及认知条件和影响因素。方法对以耳鸣为主诉的179例患者进行一般情况调查、纯音测听、声导抗检测,并使用耳鸣致残量表、汉密尔顿焦虑量表、汉密尔顿抑郁量表进行量化评估。结果 179例耳鸣患者中,男性90例(50.3%),女性89例(49.7%);年龄13-82岁,平均44.82±15.84岁。耳鸣严重程度及三个维度与焦虑、抑郁均呈正相关,耳鸣严重程度与焦虑、抑郁各因子除体重外均呈正相关。年龄是抑郁的影响因素,睡眠是焦虑和抑郁的影响因素。结论焦虑、抑郁情绪是影响耳鸣严重程度的重要因素,同时需考虑到年龄和睡眠对情绪和耳鸣的影响。

关键词：耳鸣情绪焦虑抑郁

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C^4ISR系统基于邮箱机制的离散事件仿真引擎技术

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系统仿真学报 2015年第9期27卷 2025-2030页

作者：程文迪孙丰鑫楚威中国电子科技集团公司第二十八研究所江苏南京210007 信息系统工程重点实验室江苏南京210007

针对C4ISR系统仿真作战平台工具中离散事件仿真引擎的设计问题,结合C4ISR系统功能组成和作战推演流程划分了三种基本离散事件类型;利用邮箱收发邮件的缓存机制可进行集中管理和存取便捷的特点,辅助仿真引擎支撑离散事件的运行流转过程;... 详细信息

针对C4ISR系统仿真作战平台工具中离散事件仿真引擎的设计问题,结合C4ISR系统功能组成和作战推演流程划分了三种基本离散事件类型;利用邮箱收发邮件的缓存机制可进行集中管理和存取便捷的特点,辅助仿真引擎支撑离散事件的运行流转过程;在此基础上比较分析了固定步长驱动法和事件驱动法两种离散事件引擎策略。试验结果表明:在时间粒度不同的离散事件仿真系统中,离散事件驱动的时钟算法比固定步长法更适用,可以大大节省仿真过程耗费的机器时间。

关键词： C4ISR系统离散事件仿真引擎邮箱

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基于屈诱多形态力学测试的织物外观平整度表征

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纺织学报 2021年第2期42卷 80-86页

作者：肖彩勤孙丰鑫高卫东生态纺织教育部重点实验室(江南大学) 江苏无锡214122

针对现有基于图像或视觉原理的织物外观平整度的测试方法易受到织物复杂花型和纹理的影响,存在织物品类适应性差等不足,提出基于后屈曲诱导的织物多形态构建和力学性能原位检测原理的织物外观平整度表征手段。选取30块织物试样进行多重... 详细信息

针对现有基于图像或视觉原理的织物外观平整度的测试方法易受到织物复杂花型和纹理的影响,存在织物品类适应性差等不足,提出基于后屈曲诱导的织物多形态构建和力学性能原位检测原理的织物外观平整度表征手段。选取30块织物试样进行多重形变下的原位力学测试,分别提取力-位移测试曲线的5个特征指标,利用SPSS软件对提取的织物特征指标及其厚度和面密度与主观评价等级进行相关性分析,同时采用逐步回归法构建外观平整度的预测模型,并借助1组独立实验对预测模型进行检验。结果表明,用原位力学测试方法构建的预测模型的评价结果与主观评估结果具有较好的吻合度,说明基于原位力学测试方法实施织物外观平整度表征是可行并有效的。

关键词：织物外观平整度织物折皱原位力学测试方法屈曲诱导

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基于ABAQUS的平纹织物同面对向弯曲有限元模拟

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纺织学报 2024年第8期45卷 165-172页

作者：岳旭王蕾孙丰鑫潘如如高卫东生态纺织教育部重点实验室(江南大学) 江苏无锡214122

为明晰织物结构对其弯曲性能的影响机制,对织物弯曲过程进行了有限元模拟和实验验证。以涤纶织物为例,通过VHX-5000型超景深数码显微镜观测织物,得到纱线几何参数;根据纱线实际尺寸,利用SolidWorks专业建模软件构建涤纶平纹织物的三维... 详细信息

为明晰织物结构对其弯曲性能的影响机制,对织物弯曲过程进行了有限元模拟和实验验证。以涤纶织物为例,通过VHX-5000型超景深数码显微镜观测织物,得到纱线几何参数;根据纱线实际尺寸,利用SolidWorks专业建模软件构建涤纶平纹织物的三维几何模型;基于有限元分析软件ABAQUS研究织物同面对向弯曲性能,分析纱线弹性模量、摩擦因数、泊松比等参数对弯曲实验的影响,并将有限元仿真结果与实验结果进行对比。结果表明:模拟所得抗弯力-位移曲线与实验曲线在0.01水平上呈显著相关,模拟结果与实验结果一致,证明用有限元模拟弯曲织物模型的有效性。

关键词：三维建模有限元分析数值模拟弯曲性能平纹织物

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