Install CentOS 6.3, dual-boot with Windows 7 64bit

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In November, 2012, my ASUS Z99 laptop didn’t work. After 1.5 month, I got a new laptop, ASUS N56VZ, with balance between budget and performance while considering my requirements: run OpenFOAM, Salome, Deal.II and others. N56VZ runs on Windows 7. Continue reading Install CentOS 6.3, dual-boot with Windows 7 64bit

502 Bad Gateway on Discourse

502 Bad Gateway after Discourse update problem: ssl certificate error how to check: tail /var/discourse/shared/standalone/log/var-log/nginx/error.log if there’s cannot load certificate “/shared/ssl/<domain>_ecc.cer”: PEM_read_bio_X509_AUX() failed (SSL: error:0909006C:PEM routines:get_name:no start line:Expecting: TRUSTED CERTIFICATE) solution: rm /var/discourse/shared/standalone/ssl/*_ecc.* rm -rf /var/discourse/shared/standalone/letsencrypt/*_ecc/

auto crop images in one-line command in Linux

常用小工具集合: 将本文件夹下的 pdf 文档转换成相应的 jpg 格式,像素 600 px/in for A in *.pdf; do convert -density 600 “$A” “${A%%.}.jpg”; done (Mainly for personal future reference,) using ImageMagick: convert -trim image.jpg image.jpg To trim/autocrop the whole directory: 自动裁剪 for a in *.jpg; Continue reading auto crop images in one-line command in Linux

CFD 相关论坛

CFD-online, 关于 CFD 方面的专业论坛,以英语为使用语言。 流体中文网,关于流体方面的信息与论坛,以中文为使用语言。 CFD 中文网,关于 CFD 方面的专业论坛,以中文为使用语言。 CFDwired Forum,以服务于 CFD 中文社区为宗旨的专业论坛。