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在Ubuntu18.04主机上用VMware安装MacOS 10.14 Majove。先用unlocker破解VMware使得新建系统项里出现苹果系统。然后就是用Mac系统镜像安装。一切顺利，但是安装后Mac系统的分辨率只有1024x768，不能调整。各种百度、google一番找到解决方案。需要安装较低版本的darwin，我安装了darwin8.5.8后。然后在终端输入如下命令：

树莓派开机自动挂在ext2格式u盘

less than 1 minute read

发布于: 2018-08-16

树莓派上插了个ext2格式的U盘给迅雷使用，每次开机后都得手动挂载。其实可以通过编辑/etc/fstab文件进行开机自动挂载，打开文件后在末尾添加如下内容：

改变ssh端口后，连接ssh和使用git

less than 1 minute read

发布于: 2018-08-11

当改变了系统ssh的默认端口后（默认端口是22），可以用如下命令进行连接。假设将系统的ssh端口改为了23。

在ubuntu18.04上搭建git服务

less than 1 minute read

发布于: 2018-07-26

想搭建一个git server放代码，网上有无数教程都不怎么靠谱。找到一个教程还算比较详细，只是其中有一处遗漏，修改一下就可以正确安装了。

Sublime Text 3的安装配置

1 minute read

发布于: 2018-07-26

Sublime是一个非常好用的文本编辑器和IDE，类似于windows下的editplus。并且有丰富的插件可以选择。Ubuntu18.04系统安装配置Sublime Text 3方法如下。

制作VGA短接插头用于无显示器的Ubuntu系统启动

less than 1 minute read

发布于: 2018-07-25

Ubuntu18.04系统启动时会扫描VGA接口，如果检测到没有连接显示器，那么系统彻底没有显示输出。这会导致用VNC连接系统时黑屏。解决办法是制作一个VGA的短接头，骗过系统，让系统认为连接了显示器。短接头的做法如下图所示，在VGA插头的1,6号插针，2,7号插针和3,8号插针之间连接三个电阻，阻值在50~100欧姆之间即可。

树莓派设置服务开机启动

less than 1 minute read

发布于: 2018-07-24

树莓派使用systemd管理服务，需要创建.service文件来配置。例如需要将aria2配置为开机自启动服务：

配置frp做内网穿透

less than 1 minute read

发布于: 2018-07-24

之前一直用ngrok做内网穿透，不过现在没有啥免费的了。natapp不错，可是免费的没有固定地址而且只能绑定一个端口。最近发现frp不错，目前提供免费服务的服务器比较多，可以自己配置二级域名和端口。

Ubuntu18.04安装matlab 2016b

less than 1 minute read

发布于: 2018-07-21

挂载iso文件，回到主目录。运行install开始安装。

linux系统查看进程的网络连接情况

less than 1 minute read

发布于: 2018-07-20

装了vncviewer，想看看连接时vncviewer的网络连接情况可以用lsof命令，如下所示：

ubuntu 18.04 安装real vnc server

less than 1 minute read

发布于: 2018-07-17

ubuntu 18.04自带的vino vncserver不太好用。换了realvnc server，官网上叫vnc connect，下载地址为：https://www.realvnc.com/en/connect/download/vnc/

ubuntu 16.04下不同版本python的切换

less than 1 minute read

发布于: 2018-04-17

ubuntu 16.04自带python 2.7和python 3.5两个版本，两个版本的python切换的命令如下：

tesseract训练

less than 1 minute read

发布于: 2018-02-01

使用Ngrok能实现内网穿透功能。但是免费用户分配的地址不是永久的，大概24小时变化一次。总得想着手动更，想着做一个监测程序，监测到变化后就自动更新。解决思路是定时截屏，然后从截屏图片上利用OCR解读出地址信息。OCR采用python的tesseract库。可是识别准确率比较低，百度了一下可以对引擎进行训练来提高识别率。训练步骤如下：

内网http server穿透

less than 1 minute read

发布于: 2017-12-18

在自己电脑上开启的http服务往往只能通过ip来访问，并且仅限于内网访问。使用Ngrok能实现内网穿透功能。获得一个公网ip或者网址。从外网也可以访问。

Vmware安装Ubuntu Server 16.04虚拟机并安装开发jekyll开发环境

less than 1 minute read

发布于: 2017-11-25

Win10下有一个Ubuntu On Windows的subsystme可以用来安装jekyll的开发环境。但win7下没有，我的办法是用VMware安装一个Ubuntu Server来配置开发环境。

Ruby Gem bundler用法

less than 1 minute read

发布于: 2017-11-17

本地运行jekyll时需要各种Ruby的库，不同的jekyll项目需求也不同。其实每个项目下都有一个Gemfile和一个Gemfile.lock文件，里面描述了该项目需要那些库。因此当git clone一个项目到本地后最简单的办法是用bundle自动安装全部需要的库。其原理是读取上述两个gem文件内容然后逐一下载安装，相当于批量的gem install。具体方法如下：

jekyll本地运行参数

less than 1 minute read

发布于: 2017-11-13

在本地环境运行jekyll常常需要修改config文件的url为本地ip，如：192.168.47.129:4000。这样整个站点在本地才能正确运行。但是上传到github上之前又得改回github上的网址，如：username.github.io 改来改去很是麻烦，一不小心就忘了改。另外，jekyll s启动后只能本机通过localhost:4000来访问，局域网内的其他电脑无法访问，为多机调试也带来了不便。解决办法如下：

Git命令用法

less than 1 minute read

发布于: 2017-11-13

最近在github整了个个人网站，需要在本地环境编辑然后上传，用到git命令。用法如下：先fork一个jekyll的模板到自己的github仓库，然后在本地新建一个文件夹(如：blog)用作本地仓库。

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publications

Laser sintering effects on the physical properties and structure of 0.94(K_0.5Na_0.5)NbO₃-0.06LiTaO₃ lead-free piezoelectric ceramics

Published in Journal of Laser Applications, 2009

Lingfei Ji, Yijian Jiang, Yi Gao, and Xinyu Du, "Laser sintering effects on the physical properties and structure of 0.94(K_0.5Na_0.5)NbO₃-0.06LiTaO₃ lead-free piezoelectric ceramics", J. Laser Appl. 21, 124-128 (2009) https://doi.org/10.2351/1.3184430

Physical Properties and Structure Characteristics of Laser Prepared (Na_0.5K_0.5)NbO₃-LiNbO₃ Ceramics

Published in Ferroelectrics, 2010

Lingfei Ji, Xinyu Du, Yan Zhao, Jie Liu, and Yijian Jiang, "Physical Properties and Structure Characteristics of Laser Prepared (Na_0.5K_0.5)NbO₃-LiNbO₃ Ceramics", Ferroelectrics 400, 104-112 (2010) http://dx.doi.org/10.1080/00150193.2010.505498

Dielectric and Piezoelectric Properties of CO₂ Laser Sintered Sr_1.86Ca_0.14NaNb₅O₁₅ Piezoelectric Ceramic

Published in Ferroelectrics, 2010

Xinyu Du, Lingfei Ji, and Yjian Jiang, "Dielectric and Piezoelectric Properties of CO2 Laser Sintered Sr_1.86Ca_0.14NaNb₅O₁₅ Piezoelectric Ceramic", Ferroelectrics 402, 163-167 (2010) http://dx.doi.org/10.1080/00150191003709321

Soft vibrational mode associated with incommensurate orbital order in multiferroic CaMn₇O₁₂

Published in Physical Rewiew B, 2014

Xinyu Du, Renliang Yuan, Lian Duan, Chong Wang, Yuwen Hu, and Yuan Li, "Soft vibrational mode associated with incommensurate orbital order in multiferroic CaMn₇O₁₂", Phys. Rev. B 90, 104414 (2014) https://doi.org/10.1103/PhysRevB.90.104414

Identification and mechanical control of ferroelastic domain structure in rhombohedral CaMn₇O₁₂

Published in Physical Review B, 2015

Renliang Yuan, Lian Duan, Xinyu Du, and Yuan Li, "Identification and mechanical control of ferroelastic domain structure in rhombohedral CaMn₇O₁₂", Phys. Rev. B 91, 054102 (2015) https://doi.org/10.1103/PhysRevB.91.054102

Study of field-induced chain conformation transformation in poly(L-lactic acid) based piezoelectric film by infrared spectroscopy

Published in Journal of Applied Physics, 2016

Xinyu Du, Chunlin Zhao, Jinxi Zhang, and Kailiang Ren, "Study of field-induced chain conformation transformation in poly(L-lactic acid) based piezoelectric film by infrared spectroscopy", J. Appl. Phys. 120,164101 (2016) https://doi.org/10.1063/1.4965716

Soft-phonon-driven orbital order in CaMn₇O₁₂

Published in Physical Review B, 2016

S. M. Souliou, Y. Li, X. Du, M. Le Tacon, and A. Bosak, "Soft-phonon-driven orbital order in CaMn₇O₁₂", Phys. Rev. B 94, 184309 (2016) https://doi.org/10.1103/PhysRevB.94.184309

Observation of magnetoelastic effects in a quasi-one-dimensional spiral magnet

Published in Physical Review B, 2017

Chong Wang, Daiwei Yu, Xiaoqiang Liu, Rongyan Chen, Xinyu Du, Biaoyan Hu, Lichen Wang, Kazuki Iida, Kazuya Kamazawa, Shuichi Wakimoto, Ji Feng, Nanlin Wang, and Yuan Li, "Observation of magnetoelastic effects in a quasi-one-dimensional spiral magnet", Phys. Rev. B 96, 085111 (2017) https://doi.org/10.1103/PhysRevB.96.085111

Self-Powered Electrospinning System Driven by a Triboelectric Nanogenerator

Published in ACS Nano, 2017

Congju Li, Yingying Yin, Bin Wang, Tao Zhou, Jiaona Wang, Jianjun Luo, Wei Tang, Ran Cao, Zuqing Yuan, Nianwu Li, Xinyu Du, Chunru Wang, Shuyu Zhao, Yuebo Liu, and Zhong Lin Wang, "Self-Powered Electrospinning System Driven by a Triboelectric Nanogenerator", ACS Nano 11, 10439-10445 (2017) https://doi.org/10.1021/acsnano.7b05626

Ultra-robust triboelectric nanogenerator for harvesting rotary mechanical energy

Published in Nano Research, 2017

Xinyu Du, Nianwu Li, Yuebo Liu, Jiaona Wang, Zuqing Yuan, Yingying Yin, Ran Cao, Shuyu Zhao, Bin Wang, Zhong Lin Wang, and Congju Li, "Ultra-robust triboelectric nanogenerator for harvesting rotary mechanical energy", Nano Res. 11(5), 2862-2871 (2018) https://doi.org/10.1007/s12274-017-1916-5

A Breathable and Screen-Print Pressure Sensor Based on Nanofiber Membranes for Electronic Skins

Published in Advanced Materials Technologies, 2017

Wei Yang, Nian-Wu Li, Shuyu Zhao, Zuqing Yuan, Jiaona Wang, Xinyu Du, Bin Wang, Ran Cao, Xiuyan Li, Weihua Xu, Zhong Lin Wang and Congju Li, "A Breathable and Screen-Print Pressure Sensor Based on Nanofiber Membranes for Electronic Skins", Adv. Mater. Technol., 1700241 (2017) https://doi.org/10.1002/admt.201700241

Self-powered nanofiber-based screen-print triboelectric sensors for respiratory monitoring

Published in Nano Research, 2017

Ran Cao, Jiaona Wang, Shuyu Zhao, Wei Yang, Zuqing Yuan, Yingying Yin, Xinyu Du, Nian-Wu Li, Xiuling Zhang, Xiuyan Li, Zhong Lin Wang, Congju Li, "Self-powered nanofiber-based screen-print triboelectric sensors for respiratory monitoring", Nano Res. 11(7), 3771-3779 (2017) https://doi.org/10.1007/s12274-017-1951-2

High Efficient Detoxification of Mustard Gas Surrogate Based on Nanofibrous Fabric

Published in Journal of Hazardous Materials, 2018

Yuebo Liu#, Xinyu Du#, Jiaona Wang, Yingying Yin, Bin Wang, Shuyu Zhao, Nianwu Li, Congju Li, "High Efficient Detoxification of Mustard Gas Surrogate Based on Nanofibrous Fabric", J. Hazard. Mater. 347, 25-30 (2018) https://doi.org/10.1016/j.jhazmat.2017.12.041

Triboelectric-based transparent secret code

Published in Advanced Science, 2018

Zuqing Yuan#, Xinyu Du#, Nianwu Li, Yingying Yin, Ran Cao, Xiuling Zhang, Shuyu Zhao, Huidan Niu, Tao Jiang, Weihua Xu, Zhong Lin Wang, Congju Li, "Triboelectric-based transparent secret code", Adv. Sci. 5, 1700881 (2018) https://doi.org/10.1002/advs.201700881

Lithium-Ion Batteries: Charged by Triboelectric Nanogenerators with Pulsed Output Based on the Enhanced Cycling Stability

Published in ACS Applied Materials & Interfaces, 2018

Xiuling Zhang#, Xinyu Du#, Yingying Yin, Nian-Wu Li, Wei Fan, Ran Cao, Weihua Xu, Chi Zhang, Congju Li, "Lithium-Ion Batteries: Charged by Triboelectric Nanogenerators with Pulsed Output Based on the Enhanced Cycling Stability", ACS Appl. Mater. Interfaces 10(10), 8676-8684 (2018) https://doi.org/10.1021/acsami.7b18736

Hybridized Nanogenerator for Harvesting Vibrational Energy by Triboelectric-Piezoelectric-Electromagnetic Effects

Published in Advanced Materials Technologies, 2018

Xinyu Du, Shuyu Zhao, Yi Xing, Nianwu Li, Jiaona Wang, Xiuling Zhang, Ran Cao, Yuebo Liu, Zuqing Yuan, Yingying Yin, Zhong Lin Wang, Congju Li, "Hybridized Nanogenerator for Harvesting Vibrational Energy by Triboelectric-Piezoelectric-Electromagnetic Effects", Advanced Materials Technologies 3(6), 1800019 (2018) https://doi.org/10.1002/admt.201800019

A compound yarn based wearable triboelectric nanogenerator for self-powered wearable electronics

Published in Advanced Materials Technologies, 2018

Hui Li#, Shuyu Zhao#,Xinyu Du#, Jiaona Wang, Ran Cao, Yi Xing, and Congju Li, "A compound yarn based wearable triboelectric nanogenerator for self-powered wearable electronics", Advanced Materials Technologies 3(6), 1800065 (2018) https://doi.org/10.1002/admt.201800065

All-Nanofiber-Based Ultralight Stretchable Triboelectric Nanogenerator for Self-Powered Wearable Electronics

Published in ACS Applied Energy Materials, 2018

Shuyu Zhao#, Jiaona Wang#, Xinyu Du#, Jing Wang, Ran Cao, Yingying Yin, Xiuling Zhang, Zuqing Yuan, Yi Xing, David Y. H. Pui, and Congju Li, "All-Nanofiber-Based Ultralight Stretchable Triboelectric Nanogenerator for Self-Powered Wearable Electronics", ACS Applied Energy Materials 1(5), 2326-2332 (2018) https://doi.org/10.1021/acsaem.8b00439

Screen-Printed Washable Electronic Textiles as Self-Powered Touch/Gesture Tribo-Sensors for Intelligent Human–Machine Interaction

Published in ACS Nano, 2018

Ran Cao, Xianjie Pu, Xinyu Du, Wei Yang, Jiaona Wang, Hengyu Guo, Shuyu Zhao, Zuqing Yuan, Chi Zhang, Congju Li*, and Zhong Lin Wang, "Screen-Printed Washable Electronic Textiles as Self-Powered Touch/Gesture Tribo-Sensors for Intelligent Human–Machine Interaction", ACS Nano 12(6), 5190-5196 (2018) https://doi.org/10.1021/acsnano.8b02477

Graphene@hierarchical meso-/microporous carbon for ultrahigh energy density lithium-ion capacitors

Published in Electrochimica Acta, 2018

Nian-Wu Li#, Xinyu Du#, Ji-Lei Shi, Xiuling Zhang, Wei Fan, Jiaona Wang, Shuyu Zhao, Yuebo Liu, Weihua Xu, Meicheng Li, Yu-Guo Guo, Congju Li, "Graphene@hierarchical meso-/microporous carbon for ultrahigh energy density lithium-ion capacitors", Electrochimica Acta 281, 459-465 (2018) https://doi.org/10.1016/j.electacta.2018.05.147

Poly(vinylidene fluoride-hexafluoropropylene) based blend film for ultrahigh energy density capacitor applications

Published in J. Phys. D: Appl. Phys., 2018

Jinxi Zhang#, Xinyu Du#, Chenchen Wang#, and Kailiang Ren, "Poly(vinylidene fluoride-hexafluoropropylene) based blend film for ultrahigh energy density capacitor applications", J. Phys. D: Appl. Phys. 51, 255306 (2018) https://doi.org/10.1088/1361-6463/aac55f

Improved Triboelectric Nanogenerator Output Performance through Polymer Nanocomposites Filled with Core–shell-Structured Particles

Published in ACS Appl. Mater. Interfaces, 2018

Xinyu Du, Yuebo Liu, Jiaona Wang, Huidan Niu, Zuqing Yuan, Shuyu Zhao, Xiuling Zhang, Ran Cao, Yingying Yin, Nianwu Li, Chi Zhang, Yi Xing, Weihua Xu, and Congju Li, "Improved Triboelectric Nanogenerator Output Performance through Polymer Nanocomposites Filled with Core–shell-Structured Particles", ACS Appl. Mater. Interfaces 10(30), 25683-25688 (2018) https://doi.org/10.1021/acsami.8b05966

A Flexible, Lightweight, and Wearable Triboelectric Nanogenerator for Energy Harvesting and Self‐Powered Sensing

Published in Advanced Materials Technologies, 2018

Fan Wu, Congju Li*, Yingying Yin, Ran Cao, Hui Li, Xiuling Zhang, Shuyu Zhao, Jiaona Wang, Bin Wang, Yi Xing, Xinyu Du*, "A Flexible, Lightweight, and Wearable Triboelectric Nanogenerator for Energy Harvesting and Self‐Powered Sensing", Advanced Materials Technologies https://doi.org/10.1002/admt.201800216

Polymer nanocomposite-enabled high-performance triboelectric nanogenerator with self-healing capability

Published in RSC Advances, 2018

Huidan Niu#, Xinyu Du#, Shuyu Zhao, Zuqing Yuan, Xiuling Zhang, Ran Cao, Yingying Yin, Chi Zhang, Tao Zhou and Congju Li, "Polymer nanocomposite-enabled high-performance triboelectric nanogenerator with self-healing capability", RSC Adv. 8, 30661-30668 (2018) https://doi.org/10.1039/C8RA05305G

Motion recognition by a liquid filled tubular triboelectric nanogenerator

Published in Nanoscale, 2019

Zuqing Yuan#, Xinyu Du#, Huidan Niu, Nianwu Li, Guozhen Shen, Congju Li and Zhong Lin Wang, "Motion recognition by a liquid filled tubular triboelectric nanogenerator", Nanoscale 11, 495-503 (2019) https://doi.org/10.1039/C8NR08406H

High-performance Electronic Cloth for Facilitating the Rehabilitation of Human Joints

Published in ACS Appl. Mater. Interfaces, 2019

Fan Wu, Congju Li, Ran Cao and Xinyu Du, "High-performance Electronic Cloth for Facilitating the Rehabilitation of Human Joints", ACS Appl. Mater. Interfaces xx, xxxxx (2019) https://doi.org/10.1021/acsami.9b04860

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