应用爬虫进行多页面爬取时,从两个不同页面可能爬取到同一个页面的url,从而导致重复爬取的情况。Scrapy提供去重过滤器,内置过滤器名为RFPDupeFilter,默认是开启状态。对于过滤器而言,网页请求的指纹(request fingerprint)是一个hash值,唯一指向网页对应的url。例如: http://www.example.com/query?id=111&cat=222 ht...
use_conf=".config_$(basename $0 _install.sh).ini" cp -rfp $1 '../conf/${file_name}' __ReadINI ../conf/${file_name} cp -av ../conf/${file_name} ${INSTALL_DIR}/conf/${file_name} 2>&1 >/dev/null main 2>&1 | tee -a ../log/enterprise.log fi shell终止前台进程 flink...
The proximity of the shell to the plasma surface is important for Reversed Field Pinch (RFP) plasmas to have smaller magnetic field fluctuation amplitudes ... Y Yagi,Y Hirano,T Shimada,... - 《Journal of Plasma & Fusion Research》 被引量: 3发表: 1993年 Towards Sustainable Buildings with ...
RFP plasma discharges are highly influenced byn the cahracteristics of the stabilising shell. Some basic issues of their designs such as shell proximity and field error reduction are addressed in the paper. Analytical and Finite Element 2-D and 3-D models have been worked out and used to ...
Design is in progress of a new generation Reversed Field Pinch (RFP) machine to be fabricated and assembled at Los Alamos National Laboratory during FY 86-92. The confinement Physics Research Facility (CPRF) houses the front-end ZTH torus. The ZTH consists of an Inconel 625 vacuum liner suppo...
As the above-mentioned properties strongly rely on the size, shape and morphologies, diverse strategies are put rfpooordstssh,ettsuosebcseosln,otwwroircleloesnd, drsiubycnbttoihvneistsyaisraeosfpwbreeisplmlaarusetdhhibsgyuhlvfviadoreilounumasnesoyesnxttprhuaecnstsiusiorpenrdodmcueraditunerrgeiast...
Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive L...
RFX-mod upgrade is proposed for studies in both RFP andTokamakconfiguration. • RFX-mod2 design implies a major change of the components of themachine assembly. • High-performance polymers will be used for in-vessel support structure. ...
|| cp -rfp ${_destdir}/${id} /data/fabuqi_bak/${id}_bak log_info "replace old ${id} dirs by new ${id} dirs ..." #同步专区目录到新发布器目标目录中,只会在源文件的更改时间较目标文件更新时或是目标文件并不存在时,才复制文件,保留文件时间属性 \cp -rpvu ${tmpdir}/${1}/${id...
-rfp $Home/config/nginx/conf /data/nginx/ chown -R nginx:nginx /data/nginx chmod -R 755 /data/nginx grep -i Nginx /etc/rc.local &> /dev/null && echo "nginx start config exist" &>> $LogFile || echo "/data/nginx/sbin/nginx"...