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三维打印机机型发展与趋势分析研究 被引量:3
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作者 牛晰 《机械工程师》 2015年第6期108-110,共3页
介绍了三维打印的发展历程及各型三维打印机的性能特点。按照三维打印机的发展时段,可分为传统型三维打印机、特种型三维打印机和普及型三维打印机这三种大的类型。由于三维打印机具备现代工业的技术特点,在三维软件技术整合方面、三维... 介绍了三维打印的发展历程及各型三维打印机的性能特点。按照三维打印机的发展时段,可分为传统型三维打印机、特种型三维打印机和普及型三维打印机这三种大的类型。由于三维打印机具备现代工业的技术特点,在三维软件技术整合方面、三维打印材料标准化应用方面以及对传统行业的刺激等方面都呈现出显著的影响作用。 展开更多
关键词 3D打印 三维打印机 机型种类 影响作用
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Dynamics of a stochastic three-species competitive model with Levy jumps
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作者 Yongxin Cao Shiquan Tian 《International Journal of Biomathematics》 SCIE 2018年第5期285-308,共24页
This paper is concerned with a three-species competitive model with both white noises and Levy noises. We first carry out the almost complete parameters analysis for the model and establish the critical value between ... This paper is concerned with a three-species competitive model with both white noises and Levy noises. We first carry out the almost complete parameters analysis for the model and establish the critical value between persistence in the mean and extinction for each species. The sufficient criteria for stability in distribution of solutions are obtained. Finally, numerical simulations are carried out to verify the theoretical results. 展开更多
关键词 Stochastic competitive model Levy jumps EXTINCTION persistence in the mean stability in distribution.
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