[Objective] The paper aims to provide references to cultivate I.galbana in a large scale and explore its medical value.[Method] I.galbana had been cultivated in different light-path flat plate bioreactors,and the grow...[Objective] The paper aims to provide references to cultivate I.galbana in a large scale and explore its medical value.[Method] I.galbana had been cultivated in different light-path flat plate bioreactors,and the growth condition and content of organic matter within cells of I.galbana had been analyzed.[Result] Growth rate and volumetric productivity of I.galbana cells increased as light-path of flat plate bioreactors decreased,however,daily areal output rate rose with the increasing of light path.The smaller the light path of flat plate bioreactors was,the more content of total lipids,protein and polysaccharide it had in I.galbana cells.[Conclusion] It is an effective way to improve production efficiently and reduce the cost by selecting the suitable bioreactors.展开更多
随着机器视觉技术的快速发展,智能焊接技术在机械制造领域中的应用越来越广泛。通过结构光相机建立三维模型,开发出无需示教的机器人自主焊接方法,可在铸钉辊的复杂几何轮廓上实现高精度焊接路径的自动生成。首先,对三维重建之后的点云...随着机器视觉技术的快速发展,智能焊接技术在机械制造领域中的应用越来越广泛。通过结构光相机建立三维模型,开发出无需示教的机器人自主焊接方法,可在铸钉辊的复杂几何轮廓上实现高精度焊接路径的自动生成。首先,对三维重建之后的点云使用曲面拟合、直通滤波、区域生长和边缘提取等算法进行分割和预处理。然后,对陶瓷柱的边缘点云和质心建立数学模型,获得焊接点位。最后,使用主成分分析(Principal Component Analysis,PCA)算法,对三维空间中的焊接点位进行最优路径求取,并自主规划出整个曲面工件的焊接路径,样本数据显示,系统整体误差小于0.5 mm。工程试验结果表明,焊缝外观无明显缺陷,满足铸钉辊活性气体保护电弧焊(Metal Active Gas arc welding,MAG焊)工艺的自主焊接生产需要。该结果对具有一定曲面的铸钉辊表面自主堆焊工程应用具有一定的指导意义和参考价值。展开更多
基金Supported by National Ministry of Science and Technology Marine‘863’Marine Life Technology Plan Project(2008AA09Z403)Shangdong High School Technological Plan Project(J05I03)~~
文摘[Objective] The paper aims to provide references to cultivate I.galbana in a large scale and explore its medical value.[Method] I.galbana had been cultivated in different light-path flat plate bioreactors,and the growth condition and content of organic matter within cells of I.galbana had been analyzed.[Result] Growth rate and volumetric productivity of I.galbana cells increased as light-path of flat plate bioreactors decreased,however,daily areal output rate rose with the increasing of light path.The smaller the light path of flat plate bioreactors was,the more content of total lipids,protein and polysaccharide it had in I.galbana cells.[Conclusion] It is an effective way to improve production efficiently and reduce the cost by selecting the suitable bioreactors.
文摘随着机器视觉技术的快速发展,智能焊接技术在机械制造领域中的应用越来越广泛。通过结构光相机建立三维模型,开发出无需示教的机器人自主焊接方法,可在铸钉辊的复杂几何轮廓上实现高精度焊接路径的自动生成。首先,对三维重建之后的点云使用曲面拟合、直通滤波、区域生长和边缘提取等算法进行分割和预处理。然后,对陶瓷柱的边缘点云和质心建立数学模型,获得焊接点位。最后,使用主成分分析(Principal Component Analysis,PCA)算法,对三维空间中的焊接点位进行最优路径求取,并自主规划出整个曲面工件的焊接路径,样本数据显示,系统整体误差小于0.5 mm。工程试验结果表明,焊缝外观无明显缺陷,满足铸钉辊活性气体保护电弧焊(Metal Active Gas arc welding,MAG焊)工艺的自主焊接生产需要。该结果对具有一定曲面的铸钉辊表面自主堆焊工程应用具有一定的指导意义和参考价值。
