Study on the yarn compressive stresses at balloon control ring by signal processing

Process monitoring and online control of each process in textile industry has received significant attention nowadays. Yarn tension plays an important role in ring spinning and there are a few methods for real-time measurement of yarn tension. To obtain machine efficient parameters, it is necessary to understand how operating variables determine yarn tension and balloon dynamic stability. In this study, compressive stresses that are acting on the yarn by balloon control ring are investigated by manipulating of signal processing. An experimental set up is devised for capturing and monitoring the signals through of a data acquisition interface. The results show that decreasing the balloon height or increasing the traveler mass will lead to a decrease in compressive forces acting on yarn at balloon control ring. Analysis of variance, Bonferroni test and linear regression methods were used to evaluate the results. The results have been analyzed in the frequency area as well.     

Study on the influence of subjective well-being on travel mode selection

Traffic congestion is increasingly deteriorating people's travel experience, and accordingly the relationship between travel mode selection and subjective well-being has become a hot issue of concern. Motivated by this, an incentive mechanism combining both reward and punishment is proposed to characterize the evolution of subjective well-being. Two psychological thresholds are introduced: payoff higher than the upper limit will result in rewarding while that lowers than the lower limit leads to punishment. Results show that when the upper and lower limits are close enough, cooperative behavior can be dramatically promoted, that is, more travelers choose low-carbon transportation mode. Moreover, we find that punishment is superior to rewarding in stabilizing high cooperative level. It also shows that whether to choose low-carbon transportation mode depends sensitively on the changes of the upper and lower limits as well as the heterogeneity of self-interest. This study is helpful to promote the formulation of green travel management policies in the future.     

AR技术在机场中的应用研究

增强现实(AR)作为一种较为先进的人机交互技术,可以直观地对现实场景进行信息标注和信息展示,显著地提高人对周边环境的感知能力,已在工业、教育、医疗等领域有了诸多尝试与应用案例。基于分析增强现实技术的发展现状,结合机场当前的信息化发展状况和民航"智慧机场"的建设要求,以旅客、机场工作人员两类人员作为主要使用对象,研究探讨增强现实技术在民航机场中较为可行的应用场景和相应的技术重点,为智慧机场的建设提供新思路。