阻塞混流生产机器人制造单元调度问题可行解性质研究

针对阻塞混流生产机器人制造单元调度问题的可行解性质进行研究。首先,定义了机器人活动,将机器人运行排序和工件加工排序转化为机器人活动调度,将二维调度问题转化为一维调度问题;其次,提出了可行机器人活动调度概念,给出了几个等价定义;最后,给出了可行机器人活动调度经过一定变换,仍然是可行调度的条件。这些性质为优化算法的设计提供了理论基础。     

基于NURBS曲线插值的实时大气折射误差修正

提出了一种采用传统的逐点描迹法和NURBS曲线插值方法相结合的技术，对多种可见光测量设备进行高准确度的实时大气折射误差修正方法.该方法克服了逐点描迹法计算量大、无法达到实时计算要求等缺点，尤其适用于全自动胶片判读仪或光电经纬仪中实时数据的大气折射误差修正.     

壳聚糖膜固定生物活性短肽RGDS的研究

为改善壳聚糖对细胞的特异性吸附,采用水溶性碳二亚胺将生物活性短肽精氨酸-甘氨酸-天冬氨酸-丝氨酸(RGDS)固定到壳聚糖膜的表面,采用X射线光电子能谱检测固定多肽前后的壳聚糖膜表面,发现反应后壳聚糖膜表面氮元素含量增大,Nls和Cls曲线拟合谱中酰胺键增多,表明RGDS短肽已固定到壳聚糖膜的表面;人角膜缘上皮细胞体外培养实验表明,固定RGDS后壳聚糖膜的细胞黏附率有了明显提高,固定RGDS后的壳聚糖膜在角膜组织工程支架等方面有更好的应用潜力。     

Flexible white top-emitting organic light-emitting diode with a MoO_x roughness improvement layer

In this paper, an MoOx film is deposited on a polyethylene terephthalate （PET） substrate as a buffer layer to improve the surface roughness of the flexible PET substrate. With an optimized MoOx thickness of 100 nm, the surface roughness of the PET substrate can be reduced to a very small value of 0.273 nm （much less than 0.585 nm of the pure PET）. Flexible white top-emitting organic light-emitting diodes （TEOLEDs） with red and blue dual phosphorescent emitting layers are constructed based on a low-reflectivity Sm/Ag semi-transparent cathode. The flexible white emission exhibits the best luminance and current injection characteristics with the 100-nm-thick MoOx buffer layer and this result indicates that a smooth substrate is beneficial to the enhancement of device electrical and electroluminescence performances. However, the white TEOLED with a 50-nm-thick MoOx buffer layer exhibits a maximum current efficiency of 4.64 cd/A and a power efficiency of 1.9 lm/W, slightly higher than those with a 100-nm MoOx buffer layer, which is mainly due to an obvious intensity enhancement but limited current increases in 50-nm MoOx-based white TEOLED. The change amplitudes of the Commission International de l’Eclairage （CIE） chromaticity coordinates are less than （0.016, 0.005） for all devices in a wide luminance range over 100 cd/m2, indicating an excellent color stability in our white flexible TEOLEDs. Additionally, the flexible white TEOLED with an MoOx buffer layer shows excellent flexibility to withstand more than 500 bending times under a curvature radius of approximately 9 mm. Research demonstrates that it is mainly attributed to the high surface energy of the MoOx buffer layer, which is conducible to the improvement of the surface adhesion to the PET substrate and the Ag anode.     

一种基于图像处理技术获取尾流特性的新方法

提出了一种利用图像处理手段获取舰船尾流中气泡大小和密度的新方法.该方法对利用高速数字摄影设备拍摄的尾流图像进行处理；具有直观、实时、高效等特点，可以方便地应用在实际的工程项目中.