检索结果-南通市图书馆

An epidermal electrode based triboelectric walking energy harvester for wearable wireless sensing applications

Science China(Technological Sciences) 2024年第3期67卷 949-957页

作者： CHANG ShiYuan LIU FuHai CHEN JinKai XIA LianBin ZHOU Hao JIANG JingYang DONG Kang ZHANG ChenHao WU Yun CHEN Jin XUAN Weipeng SUN LingLing JIN Hao DONG ShuRong LUO JiKui Ministry of Education Key Laboratory of RF Circuits and Systems Hangzhou Dianzi UniversityHangzhou 310018China Special Equipment College Hangzhou Vocational&Technical CollegeHangzhou 310018China College of Information Science and Electronic Engineering Zhejiang UniversityHangzhou 330027China ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311200China

Harvesting bio-kinetic energy using a triboelectric nanogenerator(TENG) is one of the promising routes to solve the sustainable energy supply problem for wearable electronics. However, additional materials, complex fabricating processes or specific mechanical structures are needed for existing TENGs to harvest bio-kinetic energy. Besides, they need to be tightly attached to the human body, which may result in detachment and malfunction under tense human motion. Herein, an intrinsic epidermal electrode-based TENG(E-TENG) is proposed to harvest human walking energy. The wearing shoes and ground are used as tribo-materials, and the human epidermis is used as the back electrode of the E-TENG. Compared with the traditional TENGs,the E-TENG does not need any additional tribo-materials and complex mechanical structures. Under optimal conditions, the voltage output of E-TENG can reach 914 V. E-TENG has been used as a self-powered warning sensor and pedometer sensor for demonstration. Furthermore, E-TENG based self-powered wireless sensor system has been developed using a newly designed micro energy electronic switch(MEES). Ambient ultraviolet intensity, temperature and humidity information can be monitored and then transmitted to mobile phone every 3.5 min, demonstrating great potential for widespread wearable applications.

关键词： triboelectric nanogenerator wearable wireless sensing self-powered

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

wearable Inflatable Massage Chair:The Future of Comfort

引用

Journal of Electronic Research and Application 2024年第3期8卷 118-124页

作者： Xingyu Tong Yiting Liu Lijuan Liu Chongqing Institute of Engineering Chongqing 400056China

With the continuous advancement of science and technology,our lifestyles are undergoing significant changes,with wearable technology emerging as a captivating trend.In this digital era,there is a growing demand for solutions that cater to people’s needs for health and comfort.The wearable inflatable massage chair represents one such innovation designed to meet these evolving needs.This project is focused on creating a“wearable and portable massage chair”that is both convenient and lightweight.It serves as a massage solution particularly beneficial for the elderly and sedentary individuals.This innovative chair can be used by the elderly during outings or errands,as well as by office workers on business trips,while driving,or commuting via subway.Users can simply lean against the seat or a wall,enjoying moments of relaxation amid the busy and fast-paced modern era.

关键词： Comfortable Convenient Innovative Relaxing wearable Low cost

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect and feasibility of wearable physical activity trackers and pedometers for increasing physical activity and improving health outcomes in cancer survivors:A systematic review and meta-analysis

引用

Journal of Sport and Health Science 2022年第2期11卷 184-193页

作者： Benjamin Singh Eva M.Zopf Erin J Howden Gallipoli Medical Research Foundation Greenslopes Private HospitalGreenslopesQLD 4120Australia Mary MacKillop Institute for Health Research Australian Catholic UniversityMelbourneVIC 3000Australia Baker Heart and Diabetes Institute MelbourneVIC 3004Australia

Purpose:This systematic review and meta-analysis aimed to evaluate the effect of wearable devices for improving physical activity and healthrelated outcomes in cancer survivors.Methods:CINAHL,Cochrane,Ebscohost,MEDLINE,Pubmed,ProQuest Health and Medical Complete,ProQuest Nursing and Allied Health Source,ScienceDirect,and SPORTDiscus databases were searched for randomized controlled trials published before September 1,2020,that evaluated interventions involving wearable devices in cancer survivors.Standardized mean differences(SMDs)were calculated to assess effects on physical activity and health-related outcomes.Subgroup analyses were conducted to assess whether the effects differed by interventions and cancer characteristics.Risk of bias was assessed using the Cochrane risk of bias tool.Results:Thirty-five trials were included(breast cancer,n=15,43%).Intervention durations ranged between 4 weeks and 1 year.Most trials(n=25,71%)involved pedometer-based physical activity interventions.Seven(20%)involved Fitbit-based interventions,and 3(9%)involved other wearable physical activity trackers(e.g.,Polar,Garmin).Compared to usual care,wearable devices had moderate-to-large effects(SMD range 0.54-0.87,pwearable physical activity trackers and pedometers are effective tools that increase physical activity and improve health-related outcomes in individuals with cancer.Identifying how these devices can be implemented for longer-term use with other intervention components remains an area for future research.

关键词： Activity tracker Cancer Exercise Physical activity wearable

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Dual-Band Flexible MIMO Antenna with Self-Isolation Enhancement Structure for wearable Applications

引用

Chinese Journal of Electronics 2023年第4期32卷 692-702页

作者： YANG Lingsheng XIE Yizhang JIA Hongting QU Meixuan LU Zhengyan LI Yajie Nanjing University of Information Science and Technology Kyushu University Zhongda Hospital Southeast University

A two-element dual-band flexible multiin multi-out antenna which can be used for wearable applications is proposed in this paper. The antenna consists of two radiating elements fed by coplanar waveguide, and a shielding layer, which are all made of flexible conductive cloth MKKTN260. Each radiating element is composed of two coupled split ring-shaped bending strips. The proposed antenna shows two measured impedance bandwidth(S1130 dB) has been achieved for both the bands. Other characteristics for wearable applications like gain, efficiency, specific absorption rate, and bending performances were also studied.

关键词： Flexible antenna Shielding layer Coplanar waveguide Mult-in multi-out wearable

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Spiral Steel Wire Based Fiber-Shaped Stretchable and Tailorable Triboelectric Nanogenerator for wearable Power Source and Active Gesture Sensor

引用

Nano-Micro Letters 2019年第3期11卷 36-45页

作者： Lingjie Xie Xiaoping Chen Zhen Wen Yanqin Yang Jihong Shi Chen Chen Mingfa Peng Yina Liu Xuhui Sun Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon.Based Functional Materials and DevicesSoochow UniversitySuzhou215123People’s Republic of China Nantong Textile and Silk Industrial Technology Research Institute Jiangsu Industrial Technology ResearchInstitute of Textile and SilkNantong 226314People’s Republic of China Department of Mathematical Sciences Xi’an Jiaotong-Liverpool UniversitySuzhou215123People’s Republic of China

Continuous deforming always leads to the performance degradation of a flexible triboelectric nanogenerator due to the Young’s modulus mismatch of different functional layers.In this work,we fabricated a fiber-shaped stretchable and tailorable triboelectric nanogenerator(FST-TENG)based on the geometric construction of a steel wire as electrode and ingenious selection of silicone rubber as triboelectric layer.Owing to the great robustness and continuous conductivity,the FST-TENGs demonstrate high stability,stretchability,and even tailorability.For a single device with ~6 cm in length and ~3 mm in diameter,the open-circuit voltage of ~59.7 V,transferred charge of ~23.7 nC,short-circuit current of ~2.67 μA and average power of ~2.13 μW can be obtained at 2.5 Hz.By knitting several FST-TENGs to be a fabric or a bracelet,it enables to harvest human motion energy and then to drive a wearable electronic device.Finally,it can also be woven on dorsum of glove to monitor the movements of gesture,which can recognize every single finger,different bending angle,and numbers of bent finger by analyzing voltage signals.

关键词： Triboelectric nanogenerator Stretchable Human motion energy wearable power source Active gesture sensor

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

wearable droplet microfluidics

引用

Science Bulletin 2019年第20期64卷 1472-1473页

作者： Xiaoxuan Zhang Yuanjin Zhao State Key Laboratory of Bioelectronics School of Biological Science and Medical Engineering Southeast University

Point-of-care (POC) diagnostics, which aims at continuously measuring and screening dynamic chemical signals in human body, is attracting increasing attention among disease treatment,diagnosis, drug discovery and other biomedical fields (1,2)Recent years have witnessed the booming development of miniaturized,minimal-invasive POC technologies, such as implanted electrochemicalsensors [3,4], paper chips [5,6] and microfluidic devices[7–9]. Among them, microfluidics is one of the most promisingstrategy due to the accurate and user-friendly properties. However,most of the microfluidic POC devices are manually intensive andhighly rely on bulky laboratory equipment such as syringe pumps,external valves and microscopes, which not only limit their applicationsin wearable devices, but also hinder their moving out oflaboratory and into practical use [10,11]. These problems remainunsolved until now.

关键词： POC wearable droplet microfluidics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

wearable wireless real-time cerebral oximeter for measuring regional cerebral oxygen saturation

引用

Science China(Information Sciences) 2021年第1期64卷 123-132页

作者： Juanning SI Xin ZHANG Meng LI Jian YU Zhiyong ZHANG Qing HE Shaohua CHEN Lianqing ZHU Tianzi JIANG School of Instrumentation Science and Opto-electronics Engineering Beijing Information Science and Technology University Beijing Key Laboratory for Optoelectronic Measurement Technology Beijing Information Science and Technology University Brainnetome Center Institute of AutomationChinese Academy of Sciences National Laboratory of Pattern Recognition Institute of AutomationChinese Academy of Sciences Research and Development Department Casibrain Technology Limited Company Key Laboratory for NeuroInformation of the Ministry of Education School of Life Science and TechnologyUniversity of Electronic Science and Technology of China Chinese Academy of Sciences Center for Excellence in Brain Science Institute of AutomationChinese Academy of Sciences Queensland Brain Institute University of Queensland

Monitoring regional cerebral oxygen saturation throughout the perioperative clinical process is important for successful patient outcomes. Cerebral oximeters based on near-infrared spectroscopy(NIRS)have already been used for monitoring brain oxygenation and hemodynamics to avoid intraoperative ischemic stroke and reduce postoperative cognitive dysfunction. The current devices are all designed to be used as a bedside monitor, limiting their use to situations that center around a hospital bed. There is a current lack of wearable, miniaturized, wireless equipment that can extend brain oxygenation monitoring to motion tasks or tight spaces. We design a head-mounted wearable wireless oxygen saturation monitoring on head(WORTH)band based on NIRS for monitoring regional cerebral oxygen saturation. The band is embedded with a highly integrated central block, which comprises an optical module, a microprocessor unit, a wireless communication module, and a power management module. The performance of the WORTH band is evaluated by a controlled hypoxia experiment and a squat-to-stand experiment. The results confirm that the WORTH band can record cerebral oxygen saturation with an accuracy comparable to that of a clinical monitor and demonstrate that it is also effective during motion tasks.

关键词： near-infrared spectroscopy cerebral oxygen saturation oximeter rSO2 wearable

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Toward Flexible and wearable Embroidered Supercapacitors from Cobalt Phosphides-Decorated Conductive Fibers

引用

Nano-Micro Letters 2019年第4期11卷 561-574页

作者： Jianfeng Wen Bingang Xu Jinyun Zhou Nanotechnology Center Institute of Textiles and ClothingThe Hong Kong Polytechnic UniversityHung HomKowloonHong KongPeople’s Republic of China

wearable supercapacitors(SCs)are gaining prominence as portable energy storage devices.To develop high-performance wearable SCs,the significant relationship among material,structure,and performance inspired us with a delicate design of the highly wearable embroidered supercapacitors made from the conductive fibers composited.By rendering the conductive interdigitally patterned embroidery as both the current collector and skeleton for the SCs,the novel pseudocapacitive material cobalt phosphides were then successfully electrodeposited,forming the first flexible and wearable in-plane embroidery SCs.The electrochemical measurements manifested that the highest specific capacitance was nearly 156.6 mF cm?2(65.72 F g?1)at the current density of 0.6 mA cm?2(0.25 A g?1),with a high energy density of 0.013 mWh cm?2(5.55 Wh kg?1)at a power density of 0.24 mW cm?2(100 W kg?1).As a demonstration,a monogrammed pattern was ingeniously designed and embroidered on the laboratory gown as the wearable in-plane SCs,which showed both decent electrochemical performance and excellent flexibility.

关键词： wearable supercapacitor Conductive fiber Computerized embroidering Interdigital pattern Cobalt phosphide

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

wearable gas/strain sensors based on reduced graphene oxide/linen fabrics

引用

Frontiers of Materials Science 2019年第3期13卷 305-313页

作者： Xia HE Qingchun LIU Jiajun WANG Huiling CHEN School of Art and Design Zhejiang Sci-Tech UniversityHangzhou 310018China School of Art Design Zhejiang A&F UniversityHangzhou 311300China

Multifunctional wearable e-textiles have been a focus of much attention due to their great potential for healthcare,sportswear,fitness,space,and military applications.Among them,electroconductive textile yarn shows great promise for use as the next-generation flexible sensors without compromising properties and comfort of usual textiles.Recently,a myriad of efforts have been devoted to improving performance and functionality of wearable sensors.However,the current manufacturing process of metal-based electroconductive textile yarn is expensive,unscalable,and environmentally unfriendly.In this work,we report the preparation of multifunctional reduced graphene oxide/linen(RGO/LN)fabrics through the reduction and the followed suction filtration.Asprepared RGO/LN fabric could serve as the methane gas sensor,which exhibited high sensitivity,remarkable reliability and feasibility.Furthermore,the RGO/LN fabric sensor exhibited good moisture permeability and air permeability.The present work reveals that RGO/LN fabric has great potential as wearable smart devices in personal healthcare applications.

关键词： wearable sensor reduced graphene oxide linen fabric methane

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Flexible single-electrode triboelectric nanogenerator with MWCNT/PDMS composite film for environmental energy harvesting and human motion monitoring

引用

Rare Metals 2022年第9期41卷 3117-3128页

作者： Hao Zhang Dong-Zhi Zhang Dong-Yue Wang Zhen-Yuan Xu Yan Yang Bao Zhang College of Control Science and Engineering China University of Petroleum(East China)Qingdao266580China

With the rapid development of wearable electronic devices,modern portable energy sources pay more attention to lightweight,low cost,high flexibility and high efficiency.This paper proposed a flexible single-electrode triboelectric nanogenerator(S-TENG)composed of multi-walled carbon nanotube(MWCNT)/polydimethylsiloxane(PDMS)film.The S-TENG has the advantages of high flexibility,high hydrophobicity,light weight,low cost,and high output efficiency.The peak-to-peak open circuit voltage can reach 435 V and the maximum short-circuit current density is 13μA·cm^(−2) under continuous pressing.When the external load is 40 MΩ,the maximum output power density is 3.7 mW·cm^(−2).The S-TENG can not only harvest the mechanical energy generated by biological movement,but also can be used as a sensor to effectively detect human movement and handwriting traces.In addition,a 4×4 sensor array and a wireless transmission system were constructed to realize multi-point distributed detection and wireless transmission of portable smart terminals.The S-TENG can harvest energy from falling water droplets,uninterrupted water flow,wind and percussion sounds,which demonstrates its broad application prospects in the field of flexible wearables.

关键词： Flexible wearable Single-electrode Triboelectric nanogenerator(TENG) Environmental energy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：