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参数化绘图自动编程系统的研究与开发 被引量:2
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作者 杨先海 吉晓民 《机械科学与技术》 CSCD 北大核心 1997年第4期750-752,共3页
提出了一种通过自动编制参数化绘图程序而实现参数化绘图的方法。首先提取原有图形的数据信息,根据参数化图形的要求写出参数化文件,然后自动编程系统将依据参数化文件对变量赋值并自动编制出程序,从而实现参数化绘图,大大提高了工... 提出了一种通过自动编制参数化绘图程序而实现参数化绘图的方法。首先提取原有图形的数据信息,根据参数化图形的要求写出参数化文件,然后自动编程系统将依据参数化文件对变量赋值并自动编制出程序,从而实现参数化绘图,大大提高了工作效率。 展开更多
关键词 参数化文件 自动编程 绘图软件 AUTOCAD
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Variation of biological and hydrological parameters and nitrogen removal optimization of modified Carrousel oxidation ditch process 被引量:6
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作者 张智 李柏林 +2 位作者 相欣奕 张驰 柴华 《Journal of Central South University》 SCIE EI CAS 2012年第3期842-849,共8页
To enhance the nitrogen removal,a systemic monitoring of the biological and hydrological parameters of Carrousel oxidation ditch in Chongqing Jingkou Wastewater Treatment Plant was carried out to study the feasibility... To enhance the nitrogen removal,a systemic monitoring of the biological and hydrological parameters of Carrousel oxidation ditch in Chongqing Jingkou Wastewater Treatment Plant was carried out to study the feasibility of simultaneous nitrification and denitrification(SND).The variation and distribution of parameters such as flow velocity,concentration of dissolved oxygen(DO) and mixed liquor suspended solids(MLSS) in oxidation ditch were monitored and analyzed,which were major control factors for SND.The results showed that,the dimensional distribution of flow velocity,DO and MLSS were affected significantly by the operation condition of the aeration wheels.With all the four aeration wheels being in operation,DO and flow velocity were higher and the mixing of MLSS was sufficient.With three aeration wheels being in operation,the flow velocity in most of the bottom areas was enough to meet the basic requirements of no deposition,and the anaerobic region and aerobic region could exist simultaneously in one oxidation ditch,which was helpful to the process of SND.According to spatial distribution characteristics of the flow velocity,DO and soluble components under optimized condition,different functional zones of biochemical reaction in the Carrousel oxidation ditch system were defined,which might contribute to the optimization control and SND of Carrousel oxidation ditch. 展开更多
关键词 Carrousel oxidation ditch flow velocity dissolved oxygen (DO) mixed liquor suspended solid (MLSS) simultaneous nitrification and denitrification (SND)
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