检索结果-南通市图书馆

Strain-Insensitive Hierarchically Structured Stretchable Microstrip Antennas for Robust Wireless Communication

Nano-Micro Letters 2021年第8期13卷 1-12页

作者： Jia Zhu Senhao Zhang Ning Yi chaoyun song Donghai Qiu Zhihui Hu Bowen Li Chenghao Xing Hongbo Yang Qing Wang Huanyu Cheng Department of Engineering Science and Mechanics The Pennsylvania State UniversityUniversity ParkPA 16802USA Division of Life Sciences and Medicine School of Biomedical Engineering(Suzhou)University of Science and Technology of ChinaHefei 230022People’s Republic of China Institute of Biomedical Engineering and Technology Chinese Academy of ScienceSuzhou 215011People’s Republic of China Department of Materials Science and Engineering The Pennsylvania State UniversityUniversity ParkPA 16802USA School of Engineering and Physical Sciences Heriot-Watt UniversityUniversity ParkEdinburgh EH144ASScotlandUK Department of Electrical Engineering The Pennsylvania State UniversityUniversity ParkPA 16802USA

As the key component of wireless data transmission and powering,stretchable antennas play an indispensable role in flexible/stretchable ***,they often suffer from frequency detuning upon mechanical deformations;thus,their applications are limited to wireless sensing with wireless transmission capabilities remaining ***,a hierarchically structured stretchable microstrip antenna with meshed patterns arranged in an arched shape showcases tunable resonance frequency upon deformations with improved overall *** almost unchanged resonance frequency during deformations enables robust on-body wireless communication and RF energy harvesting,whereas the rapid changing resonance frequency with deformations allows for wireless *** proposed stretchable microstrip antenna was demonstrated to communicate wirelessly with a transmitter(input power of−3 dBm)efficiently(i.e.,the receiving power higher than−100 dBm over a distance of 100 m)on human bodies even upon 25%*** flexibility in structural engineering combined with the coupled mechanical-electromagnetic simulations,provides a versatile engineering toolkit to design stretchable microstrip antennas and other potential wireless devices for stretchable electronics.

关键词： Stretchable microstrip antennas Strain-insensitive resonance frequency Wireless communication RF energy harvesting Wearable and bio-integrated electronics

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

A Frequency Tunable Liquid Cavity Bandpass Filter

引用

Electromagnetic Science 2023年第2期1卷 61-70页

作者： Guoxuan Zhang Lei Xing Qian Xu Yongjiu Zhao chaoyun song Yi Huang College of Electronic and Information Engineering Nanjing University of Aeronautics and AstronauticsNanjing 211106China School of Engineering and Physical Science Heriot-Watt UniversityEdinburghEH144ASUK Department of Electrical Engineering and Electronics University of LiverpoolLiverpoolL693GJUK

A liquid-loaded frequency tunable cavity bandpass filter (BPF) is presented. A dielectric fluidic material, dimethyl silicone oil (DSO) withexcellent thermophysical characteristics (working temperature from −50 ℃ to 180 ℃) and extremely low loss tangent is employed as a dielectric *** frequency reconfigurability of the proposed design is realized by altering the liquid level inside the cavity resonator. The filter achieves a widefrequency tuning range as well as a high Q factor. Moreover, this design shows significantly improved environmental suitability in extreme temperaturecases, outperforming the existing microfluidic-based RF devices using water or liquid metals. A four-pole tunable cavity bandpass filter is designed andverified. A cross-coupling structure comprising a metal loop structure is used to introduce transmission zeros in the proposed filter, which enhances theskirt selectivity and out-of-band rejections. We demonstrate that the center frequency of the proposed BPF can be tuned from 4.92 GHz to 6.16 GHz,and the filter achieves a high Q factor between 521 and 1527. The measured results agree well with simulated results.

关键词： Bandpass filter(BPF) Cavity resonators Microfluidic circuit Liquid dielectric Wide temperature range

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

Frequency-Self-Adaptive Radio Frequency Power Harvester Enabled by Shape-Reconfigurable Liquid Metal

引用

Electromagnetic Science 2024年第2期2卷 91-103页

作者： Cheng Zhang Yuchao Wang Zebin Zhu Hai Lin Kun Wang Xintong Shi Yi Du chaoyun song Long Ren Qiang Cheng Key Laboratory of Materials for High-Power Laser Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Hangzhou Institute for Advanced Study University of Chinese Academy of SciencesHangzhou 310024China College of Physical Science and Technology Central China Normal UniversityWuhan 430000China Center of Quantum and Matter Science and School of Physics Beihang UniversityBeijing 100191China Department of Engineering King’s College LondonLondon WC2R 2LSUK State Key Laboratory of Radio Frequency Heterogeneous Integration College of Electronics and Information EngineeringShenzhen UniversityShenzhen 518000China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430000China State Key Laboratory of Millimeter Waves Southeast UniversityNanjing 210096China

Radio frequency(RF)energy harvester as an efficient tool for capturing and converting the flourishing ambient RF energy provides a promising solution for long-term powering the wireless sensor networks and the Internet of things(IoTs).However,the actual distribution of the environmental RF signals is dynamically frequency-dependent due to the diverse wireless terminals only interacting with specified *** take full advantage of the RF energy carrying this characteristic,an intelligent RF energy harvester is in demand to automatically sense the frequency information of an incident signal and conduct the corresponding RF-to-direct current transformation ***,to the best of my knowledge,a frequency-self-adaptive RF harvester is first presented with the help of the shape-reconfigurable liquid metal,which can precisely identify and efficiently convert an arbitrary signal from the frequency span of 1.8 to 2.6 *** with a microcontroller unit and a tensile system,the dynamic functionality of the entire system is comprehensively demonstrated,showing promising potential to significantly advance various fields,including sustainable IoT applications,green wearable technologies,and self-powered devices.

关键词： Liquid metal Radio frequency power harvesting Frequency-self-adaptive Broadband rectification

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

Multiuser computational imaging encryption and authentication with OFDM-assisted key management

引用

Advanced Photonics Nexus 2024年第5期3卷 162-173页

作者： Hongran Zeng Ping Lu Xiaowei Li Lingling Huang chaoyun song Dahai Li In-kwon Lee Seok-Tae Kim Qiong-Hua Wang Yiguang Liu Sichuan University School of Electronics and Information EngineeringChengduChina Beijing Institute of Technology School of Optics and PhotonicsBeijing Engineering Research Center of Mixed Reality and Advanced DisplayBeijingChina King’s College London Department of EngineeringLondonUnited Kingdom Yonsei University Department of Computer ScienceSeoulRepublic of Korea Pukyong National University Department of Information and CommunicationsBusanRepublic of Korea Beihang University School of Instrumentation and Optoelectronic EngineeringBeijingChina Sichuan University College of Computer ScienceChengduChina

Single-pixel imaging(SPI)enables an invisible target to be imaged onto a photosensitive surface without a lens,emerging as a promising way for indirect optical ***,due to its linear and broadcast imaging principles,SPI encryption has been confined to a single-user framework for the long *** propose a multi-image SPI encryption method and combine it with orthogonal frequency division multiplexing-assisted key management,to achieve a multiuser SPI encryption and authentication *** images are first encrypted as a composite intensity sequence containing the plaintexts and authentication information,simultaneously generating different sets of keys for ***,the SPI keys for encryption and authentication are asymmetrically isolated into independent frequency carriers and encapsulated into a Malus metasurface,so as to establish an individually private and content-independent channel for each *** can receive different plaintexts privately and verify the authenticity,eliminating the broadcast transparency of SPI *** improved linear security is also verified by simulating *** the combination of direct key management and indirect image encryption,our work achieves the encryption and authentication functionality under a multiuser computational imaging framework,facilitating its application in optical communication,imaging,and security.

关键词： computational imaging optical encryption optical authentication key management

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

宋代瓷器制造技术的考古学观察

引用

考古学报 2017年第4期 495-514页

作者：陈朝云郑州大学历史学院郑州450001

宋代是我国瓷器制作技术发展的鼎盛时期，但由于中国古代对手工业生产及技术的轻视，使宋代制瓷技术及详细过程在正史中难觅其踪。随着考古资料的积累，近年学术界对宋代制瓷技术的研究也日渐重视。

关键词：宋代瓷器制造技术考古学制瓷技术手工业生产鼎盛时期技术发展考古资料

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

北宋李昌世及夫人尹氏墓志铭研究

引用

史学史研究 2019年第3期 19-32页

作者：陈朝云郑州大学历史学院

现藏于洛阳龙门博物馆的北宋李昌世及夫人尹氏墓志,详细记载了北宋中下级武官李昌世的世系、仕宦经历、姻亲交游及子嗣情况。李昌世出生于北宋武将世家,家族恩荫及先祖的功绩不仅为李昌世提供了入仕及迁转之便,也对其官职的调遣产生了... 详细信息

现藏于洛阳龙门博物馆的北宋李昌世及夫人尹氏墓志,详细记载了北宋中下级武官李昌世的世系、仕宦经历、姻亲交游及子嗣情况。李昌世出生于北宋武将世家,家族恩荫及先祖的功绩不仅为李昌世提供了入仕及迁转之便,也对其官职的调遣产生了重要影响;李昌世以武臣之阶出任边郡知州并担任地方将官,反映了北宋中后期崇文抑武政策下宋廷对武臣的策略性安置。李昌世以国信副使的身份出使辽国并且不辱使命,补充了宋辽交聘的重要史料。李昌世的姻亲和交游网络反映了北宋后期一般武臣家族的社会地位和交往群体。李昌世家族的发展延续贯穿于北宋始终,其家族成员的仕宦、交游、姻亲网络等情况是北宋社会各阶层流动加剧以及崇文抑武政策下一般武将群体生活状况的缩影。

关键词：北宋李昌世夫妇墓志武将家族崇文抑武

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

北宋石谔墓志文研究

引用

史学史研究 2023年第1期 99-109页

作者：陈朝云杨丫郑州大学历史学院河南郑州450001

北宋武臣之后石谔墓志现存于河南省新郑市博物馆,墓志系统记载了石谔的为官经历、家庭关系和社会交往,具有重要的研究价值。墓志文记载了石谔“引经传情”的司法理念,揭露了北宋中后期朝廷在司法方面存在的引例取旨、赦宥贪官等问题,展... 详细信息

北宋武臣之后石谔墓志现存于河南省新郑市博物馆,墓志系统记载了石谔的为官经历、家庭关系和社会交往,具有重要的研究价值。墓志文记载了石谔“引经传情”的司法理念,揭露了北宋中后期朝廷在司法方面存在的引例取旨、赦宥贪官等问题,展示了石谔作为刑部官员把自己惩治贪官、宽贷灾民、宽贷奴婢的主张化为朝廷政策的过程。其中“引经传情”的思想主张、宽贷奴婢的政策未见史书记载,值得重视。墓志文所载石谔任职地方的经历,反映了北宋社会黑恶势力犯罪猖獗、民众“善讼”“事巫诅”“子生不举”、路有遗骸等社会问题,揭示了石谔治理地方的才干和智慧。石谔墓志还可补充宋夏、宋辽交聘以及墓志撰者张叔夜史事之阙。

关键词：北宋石谔张叔夜墓志研究

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

考古材料所见宋代女性的活动及社会参与

引用

中州学刊 2020年第4期 121-125页

作者：陈朝云朱梦园郑州大学历史学院郑州450001

宋代墓葬壁画、墓志铭文等考古资料所呈现出来的女性日常生活状态说明,宋代富裕阶层的女性虽然仍普遍受到女治内事、无故不窥中门道德理想的规范,但她们在赈济灾民、修葺寺院等方面仍有一定的外事参与;不预外事主要限于女性对其丈夫的... 详细信息

宋代墓葬壁画、墓志铭文等考古资料所呈现出来的女性日常生活状态说明,宋代富裕阶层的女性虽然仍普遍受到女治内事、无故不窥中门道德理想的规范,但她们在赈济灾民、修葺寺院等方面仍有一定的外事参与;不预外事主要限于女性对其丈夫的政治活动,女性对其子嗣政治活动的参与则没有限制。平民阶层的女性由于生计所需,基本不受以上道德理想的约束。

关键词：宋代女性规范不预外事

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

Sutra Keeping Case

引用

Women of China 1997年第9期 44-44页

作者： GAO chaoyun

This gold-traced sandalwood sutra keeping case, unearthed from the Pagoda of Enlightened Wisdom in Rui’an County, Wenzhou City in 1966, is a lacquerwork of the song Dynasty. Handicraft industry was popular in Zhejiang Province during the song Dynasty. The lacquerware in Wenzhou even gained national fame. The Wenzhou-made lacquerwares unearthed from Wujin, Jiangsu Province, in the 70s are exquisite, bearing lacquerers’ names, addresses and shop names. With a smaller box inside a larger one, the outer case, 40 cm long, 18 cm wide and 16.5 cm high, is made of sandalwood in

关键词： Th Sutra Keeping Case

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

院级优秀杰出人才的培养和指导

引用

现代盐化工 2017年第6期44卷 109-110页

作者：宋伟朱超云赖庆菁南京科技职业学院生物与环境学院江苏南京210048

为了培养"知识、能力、素质"全面发展的、创新型、高素质技术技能型优秀杰出人才,南京科技职业学院提出了"院级优秀杰出人才"的培养计划。文章以某位"院级优秀杰出人才"培养为例,阐述了导师的培养计划和培养过程,最后该生以优异的成绩毕... 详细信息

为了培养"知识、能力、素质"全面发展的、创新型、高素质技术技能型优秀杰出人才,南京科技职业学院提出了"院级优秀杰出人才"的培养计划。文章以某位"院级优秀杰出人才"培养为例,阐述了导师的培养计划和培养过程,最后该生以优异的成绩毕业,成为一名有理想、有抱负、具有拼搏精神的"优秀毕业生",获得了"副学士学位",顺利地通过专转本,被本科院校录取。

关键词：优秀杰出人才导师培养指导

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：