检索结果-南通市图书馆

Acta Mechanica Solida Sinica 2023年第1期36卷 105-115页

作者： Hao Wu Shihua Huang jianyi luo Laitong He Youdi Kuang School of Mechanics and Construction Engineering MOE Key Laboratory of Disaster Forecast and Control in EngineeringJinan UniversityGuangzhou 510632China School of Electro-Mechanical Engineering Zhongkai University of Agriculture and EngineeringZhuhai 519041China School of Applied Physics and Materials Wuyi UniversityJiangmen 529000China School of Civil Engineering and Architecture Wuyi UniversityJiangmen 529000China

Flexural waves usually propagate in one-and two-dimensional *** further our understanding on their transmission properties from the viewpoint of discrete lattice dynamics,we systematically established analytical atom chain models with mass defects and side *** mechanisms of the Bragg scattering and the local resonance corresponding to mass defects and side branches,respectively,are elucidated by means of the present *** results from the models show that increasing the number of mass defects or side branches decreases the transmission magnitude gradually,and the finite-width phononic bandgap may form due to the periodical arrangement of *** interplay between the local resonance and the Bragg scattering gives rise to the narrow phononic bandgap for lattice chains only with periodical side *** width of the bandgap strongly depends on the stiffness of side *** transmission is insensitive to the tensile strain considered for both kinds of defects,but significantly decreases with an increase in damping or wave *** present work helps further our understanding on the dynamics of flexural waves.

关键词： Transmission of flexural waves Lattice dynamics of chains Defects Damping Tensile strains

Magnetized Micropillar-Enabled Wearable Sensors for Touchless and Intelligent Information Communication

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

Nano-Micro Letters 2021年第12期13卷 132-147页

作者： Qian Zhou Bing Ji Fengming Hu jianyi luo Bingpu Zhou Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoAvenida da UniversidadeTaipaMacao 999078P.R.China School of Applied Physics and Materials Research Center of Flexible Sensing Materials and DevicesWuyi UniversityJiangmen 529020P.R.China

The wearable sensors have recently attracted considerable attentions as communication interfaces through the information perception,decoding,and conveying ***,it is still challenging to obtain a sensor that can convert detectable signals into multiple outputs for convenient,e cient,cryptic,and high-capacity information ***,we present a capacitive sensor of magnetic field based on a tilted flexible micromagnet array(t-FMA)as the proposed interaction *** the bidirectional bending capability of t-FMA actuated by magnetic torque,the sensor can recognize both the magnitude and orientation of magnetic field in real time with non-overlapping capacitance *** optimized sensor exhibits the high sensitivity of over 1.3 T-1 and detection limit down to 1 mT with excellent *** a proof of concept,the sensor has been successfully demonstrated for convenient,e cient,and programmable interaction systems,e.g.,touchless Morse code and Braille *** distinguishable recognition of the magnetic field orientation and magnitude further enables the sensor unit as a high-capacity transmitter for cryptic information interaction(e.g.,encoded ID recognition)and multi-control instruction *** believe that the proposed magnetic field sensor can open up a potential avenue for future applications including information communication,virtual reality device,and interactive robotics.

关键词： Electronic skin Human–machine interaction Cryptic information communication Magnetic field sensing Tilted magnetized micropillar

Identifying human body states by using a flexible integrated sensor

在线全文

学校读者我要写书评

暂无评论

npj Flexible Electronics 2020年第1期4卷 227-234页

作者： Ying Jin Guoning Chen Kete Lao Songhui Li Yong Lu Yufeng Gan Zhundong Li Jiajia Hu Jingcheng Huang Jinxiu Wen Honggui Deng Min Yang Zhiming Chen Xiaoyan Hu Baowen Liang jianyi luo Research Center of Flexible Sensing Materials and Devices School of Applied Physics and MaterialsWuyi UniversityJiangmen529020China Department of Intelligent Manufacturing Wuyi UniversityJiangmen529020China

Flexible sensors are required to be lightweight,compatible with the skin,sufficiently sensitive,and easily integrated to extract various kinds of body vital signs during continuous healthcare monitoring in daily *** this,a simple and low-cost flexible temperature and force sensor that uses only two carbon fiber beams as the sensing layer is reported in this *** simple,flexible sensor can not only monitor skin temperature changes in real time but can also extract most pulse waves,including venous waves,from most parts of the human body.A pulse diagnostic glove containing three such flexible sensors was designed to simulate pulse diagnostic methods used in traditional Chinese *** equipment was also designed in which four flexible sensors were fixed onto different body parts(neck,chest,armpit,and fingertip)to simultaneously monitor body temperature,carotid pulse,fingertip artery pulse,and respiratory *** important physiological indicators—body temperature(BT),blood pressure(BP),heart rate(HR),and respiratory rate(RR)—were extracted by the wearable equipment and analyzed to identify exercise,excited,tired,angry,and frightened body states.

关键词： body flexible sensor

Exploration of the Energetic Material Ammonium Perchlorate at high pressures: Combined Raman Spectroscopy and X-ray Diffraction Study

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

Exploration of the Energetic Material Ammonium Perchlorate a...

Fiber-junction design for directional bending sensors

第十九届全国光散射学术会议

作者： Lei Kang jianyi luo Qingguang Zeng Kai Wang Bo Zou Laboratory of Optoelectronic Materials and Devices School of Applied Physics and Materials Wuyi University State Key Laboratory of Superhard Materials Jilin University

The effect of high pressure on the structural and vibrational properties of ammonium perchlorate(NHCl O,AP),a widely used energetic oxidizer,has been investigated by in situ synchrotron angle dispersive X-ray

关键词： High pressure Raman spectroscopy X-ray diffraction Phase transition Diamond anvil cell

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

npj Flexible Electronics 2021年第1期5卷 37-44页

作者： Zhundong Li Fengming Hu Zhiming Chen Jingcheng Huang Guoning Chen Runbo Chen Minmin Wei Kete Lao Jiajia Hu Jintao Zheng Lvfei Wang Yuan Yao Xiaoyan Hu Baowen Liang Min Yang Xihong Lu Jinxiu Wen jianyi luo Research Center of Flexible Sensing Materials and Devices School of Applied Physics and MaterialsWuyi UniversityJiangmenChina WYU-Flexwarm Joint Lab for Flexible Sensing Technologies Guangdong Flexwarm Advanced Materials&Technology Co.LtdGuangzhouChina Faculty of Intelligent Manufacturing Wuyi UniversityJiangmenChina School of Art and Design Wuyi UniversityJiangmenChina

Flexible sensors in wearable electronics have become increasingly multifunctional due to the development of materials synthesis and structure *** particular,structural design can not only add capabilities to sensors fabricated from existing available and normal materials,but also offer opportunities for the fabrication of sensors with certain desired ***,we designed a series of fiber-junction structure models,in which two fibers were simply hooked to each other to form a junction on a flexible printed circuit,for fabrication of directional bending *** value and direction of bending angle are related to the change in electronic signal by a theoretical expression,allowing us to employ a simple and practicable method to use available conductive fiber materials to fabricate high-sensitivity,high-resolution and directional bending *** addition,these models are generally applicable,which have broad combination with different conductive fiber,and corresponding bending sensors all possess capability of directional ***,the capability of identifying directional bending was demonstrated by human motion monitoring such as joint bending and muscle contraction.

关键词： directional hook bending

论浙江省实现充分就业的产业结构调整实证分析

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

改革与战略 2008年第4期24卷 100-103页

作者：张勇罗坚毅中国计量学院经济与管理学院浙江杭州310018

就业结构是由产业结构决定的,产业结构的变化必然引起相应就业结构的变化。文章运用比较分析方法和回归分析方法分析了浙江省就业的产业结构的现状、演进以及产业结构与就业结构关联性,指出浙江产业结构调整应坚持的方向以及产业结构调... 详细信息

就业结构是由产业结构决定的,产业结构的变化必然引起相应就业结构的变化。文章运用比较分析方法和回归分析方法分析了浙江省就业的产业结构的现状、演进以及产业结构与就业结构关联性,指出浙江产业结构调整应坚持的方向以及产业结构调整对就业的影响。

关键词：结构调整就业结构产业结构

基于“探究素养”的生物学实验教学的误区与改进

在线全文

学校读者我要写书评

暂无评论

中学生物学 2019年第4期35卷 43-43,70页

作者：罗建义玉门市第一中学甘肃玉门735211

《中学生物学》2016年10期、2017年第5期先后发表了笔者的文章'浅谈高中生物实验教学的误区''再谈高中生物实验教学的误区'。读后意犹未尽,再撰此文,作为该文的姊妹篇,以引导教师研读教材,合理地处理教材实验,促进学生科学探究素养的提升。

关键词：探究素养课前预设实验教学实验探究实验方案

在线全文

学校读者我要写书评

暂无评论

深度学习的舌体分割研究综述

计算机科学与探索 2021年第12期15卷 2276-2291页

作者：刘慧琳冯跃徐红罗坚义五邑大学智能制造学部广东江门529020 维多利亚大学澳大利亚墨尔本8001 五邑大学应用物理与材料科学学院柔性传感材料与器件研究开发中心广东江门529020 广东天物新材料科技有限公司五邑大学柔性传感技术联合实验室广州511483

舌体分割是智能医学诊断的重要组成部分,其目的是通过分割舌诊图像生成精准的舌体轮廓。近年来,深度学习方法在图像处理领域得到了广泛的应用并取得了较好的结果。随着医学图像分割对性能的要求越来越高,许多研究人员将深度学习运用到... 详细信息

舌体分割是智能医学诊断的重要组成部分,其目的是通过分割舌诊图像生成精准的舌体轮廓。近年来,深度学习方法在图像处理领域得到了广泛的应用并取得了较好的结果。随着医学图像分割对性能的要求越来越高,许多研究人员将深度学习运用到舌体分割中。主要对基于深度学习的舌体分割方法研究现状进行分析梳理和归纳总结。在舌体分割应用领域中,以各种深度学习方法作为研究对象,将基于深度学习的舌体分割方法划分为卷积神经网络(CNN)、全卷积网络(FCN)、卷积模型与图形模型、基于编解码器的模型、基于区域卷积网络模型、扩张卷积模型结构、迁移学习以及其他方法。在每类方法中,针对其改进和扩展的研究成果进行了全面的论述,总结分析其优势与不足;并对基于深度学习的舌体分割常用的数据集和评价指标进行了视觉比较与性能评估;最后讨论了未来研究工作中的发展潜力。

关键词：舌体分割深度学习卷积神经网络(CNN)

在线全文

学校读者我要写书评

暂无评论

基于荧光膜的大功率白光LED的发光性能

材料研究学报 2016年第5期30卷 388-392页

作者：陈锋张梅何鑫罗坚义曾庆光卿宁五邑大学应用物理与材料学院江门529020 五邑大学化学工程与环境学院江门529020

使用荧光粉和硅胶制备荧光膜,然后与455 nm蓝光芯片模组组装成高功率的白光LED器件。采用吸收光谱、荧光光谱和电致发射光谱等对荧光膜和器件进行表征,研究了红色荧光粉与黄色荧光粉的比例对器件性能的影响。结果表明:所制备的荧光膜表... 详细信息

使用荧光粉和硅胶制备荧光膜,然后与455 nm蓝光芯片模组组装成高功率的白光LED器件。采用吸收光谱、荧光光谱和电致发射光谱等对荧光膜和器件进行表征,研究了红色荧光粉与黄色荧光粉的比例对器件性能的影响。结果表明:所制备的荧光膜表面平整、荧光粉分散均匀。Y_3Al_5O_(12):Ce^(3+)(YAG)荧光膜的吸收光谱峰分别位于337 nm和450 nm左右,与YAG荧光粉中Ce^(3+)的f-d跃迁吸收对应,且当荧光膜厚度为1.00 mm时制备出的功率为2.8 W左右的LED模组光色参数较好。将不同比例红色荧光粉和黄色荧光粉按上述厚度和条件制备高显色荧光膜和低色温4460 K、高显色指数91.7的白光LED器件。

关键词：无机非金属材料白光发光二极管模组封装荧光膜

COMPARISON OF THE ANALGESIC EFFECTS BY INTRATHECAL HWAP-I AND SNX-111 IN THE FORMALIN TEST OF CONSCIOUS RATS

在线全文

学校读者我要写书评

暂无评论

神经解剖学杂志 2001年第S1期 126-126页

作者： Jia-Qin CHEN, Yong-Qun ZHANG, Jie DAI, Zhuomin luo, jianyi PAN and Song-Ping LIANG College of Life Science, Hunan Normal University, Changsha 410081

Huwena analgesic peptide-I (HWAP-I) is a N-tyre calcium channel blocker purified from the venom of the spider S. huwena. The analgesic effect of HWAP-I on a rat model of spontaneous tonic pain (the formalin test) was investigated and compared with that of the ω-conotoxin SNX-111, a novel pain killer which has been finished phase Ⅲ clinical trial and is under the approvement by FDA.

关键词： COMPARISON OF THE ANALGESIC EFFECTS BY INTRATHECAL HWAP-I AND SNX-111 IN THE FORMALIN TEST OF CONSCIOUS RATS