【摘 要】
:
The development of flexible and stretchable electronics has attracted much attention.As an important part of wearable electronic systems,the connection between conductive yarns and electronic components affects the stability and accuracy of their electric
【机 构】
:
Key Laboratory of Textile Science&Technology,Ministry of Education,Donghua University,Shanghai 20162
论文部分内容阅读
The development of flexible and stretchable electronics has attracted much attention.As an important part of wearable electronic systems,the connection between conductive yarns and electronic components affects the stability and accuracy of their electrical reliability.In this paper,three different connections were attempted to electrically and mechanically link two conductive yarns,including soldering followed by waterborne polyurethane(WPU)encapsulation,coating of conductive silver adhesive with WPU encapsulation,as well as coating of conductive silver adhesive with polydimethylsiloxane(PDMS)encapsulation.The surface morphologies and electro-mechanical behaviors of the three created connected conductive yarns were characterized.Compared with their electro-mechanical behaviors of the established three connections,the connection with soldering remained electrically conductive to around 200%,which mainly came from the stress concentration between the stiff soldering and soft conductive yarns.However,the coating of conductive silver adhesive and encapsulated protection of PDMS can make the connected conductive yarns stretchable up to 300%with almost constant electrical resistance.
其他文献
[摘 要] 学习投入与学生的学习持续性、学业满意度、学习绩效以及学业完成情况高度相关,对其进行有效测评能够准确预测和干预学生的学习结果和学习行为。为了提升学习投入测评的有效性和准确性,首先,对现有六种学习投入测评方法进行了比较分析,即自我报告、编码分析、日志分析、观察评价、智能测量以及生理测量;然后,提出了多模态数据表征的学习投入测评框架,包括数据收集、数据处理、数据融合以及数据应用四个关键步骤;
学习者画像是描述学习者特征、实现智能化推送、实施个性化教育的重要基础。如何挖掘并利用在线学习平台中的数据构建学习者画像是当前亟待解决的问题。研究以在线作业为目标场景,以在线学习行为投入为切入点,构建了以参与、坚持、专注、学术挑战和自我调控为主要维度的分析框架和测量指标,利用7695名小学生在线作业数据进行了27个测量指标的有效性验证,采用K-Means聚类方法对在线学习者的行为特征和结果特征进行了
01. 在我们都还只有15岁那年的暑假,我常常在店里最不起眼的角落优哉游哉地画漫画,能够享受冷气才是最要紧的事。 但总待在甜品店里难免会感到无聊,因此我偶尔也会偷偷观察来店里的客人,将他们画进我的草稿本里。我承认,我第一眼见到宋婉婉的时候,只一个背影便令我觉得她是我当时见过的最胖的女孩,下一秒我又为我的吃惊和以貌取人感到羞愧。 婉婉在展柜前看了好一阵子,才终于点了一个榴莲千层,但就在她端着托
去莫干山做一个采访,民宿的管家带我们去竹林挖笋.他教我们怎么发掘哪些地底下藏着竹笋,他带我们找到一处泥土:你们看,这块泥,有微微的隆起、松动和开裂,用脚轻踩,有松软的感觉,这块泥下面肯定埋着笋.如果有耐心,我们可以等到明天早晨再来看.
Word sense disambiguation(WSD),identifying the specific sense of the target word given its context,is a fundamental task in natural language processing.Recently,researchers have shown promising results using long short term memory(LSTM),which is able to b
Reactive dyes are the main dyes in printing and dyeing of cellulosic fibers.Reactive dyes fixation rate is a vital indicator to measure the degree of the covalent bond between cellulose and reactive dyes.However,the determination of the fixation rate is t
To elucidate the effects of Fe2O3 on nitrogen transformation during sludge pyrolysis,thermogravimetry coupled with mass spectrometry(TG-MS)was used to investigate the influences of Fe2O3 on the pyrolysis characteristics and the release of important gaseou
住在上海“弄堂房子”里的人对于月亮的圆缺隐现是不甚关心的.所谓“天井”,不到一丈见方的面.至少十六支光(16瓦)的电灯每间里总得挂一盏.环境限定,不容你有关心到月亮的便利.走到路上,还没“断黑”已经一连串地亮了街灯.有月亮吧,就像多了一盏灯;没有月亮吧,犹如一盏街灯损坏了,没有亮起来.谁留意这些呢?
我想讲讲自己曾患抑郁症的一段经历。这是一个比较沉重的话题,而有时候正是由于讲述得艰难,才显得它更加珍贵。 2014年的春天,有段时间我一个多星期不想出门,看见什么人都讨厌。所有以前让我觉得热情和快乐的事,我都不想做。 大家对于抑郁症最多的三种反应是:第一,你也会得抑郁症?第二,你为什么发愁?跟我说说啊。第三,你不开心,我们讲点开心的事好吗? 对于第一点,很多人都觉得抑郁症应该是那种多愁善感,
我是1960年大学毕业,分配到贵州一所卫生学校教语文的.那是一个边远的山区,而且叉正赶上所谓困难时期,我感受到的更是物质与精神的双重饥饿.对于我这样一个在南京、北京这些大城市里长大的年轻人,这个大环境是比较恶劣的.当时我的第一个反应,就是尽快离开这里.因此,我提出要报考研究生,设法调动到大学或我的南京中学母校去工作,但都被学校领导拒绝,而在20世纪60年代的中国,没有单位领导的批准,是绝不可能自由流动的,我只得继续待在卫校教语文.想走却走不了,就很容易产生无所事事的绝望情绪:中学赋予我的理想主义从一开始就