Since the massless quantum electrodynamics in 2＋1 dimensions （QEDa） with nonzero gauge boson mass ζ can be used to explain some important traits of high-Tc superconductivity in planar cuprates, it is worthwhile to...Since the massless quantum electrodynamics in 2＋1 dimensions （QEDa） with nonzero gauge boson mass ζ can be used to explain some important traits of high-Tc superconductivity in planar cuprates, it is worthwhile to apply this model to analyze the nature of chiral phase transition at the critical value ζ. Based on the feature of chiral susceptibility, we show that the system at ζ exhibits a second-order phase transition which accords with the nature of appearance of the high-To superconductivity, and the estimated critical exponents around ζ are illustrated.展开更多
The contact time of the droplet impacting on solid surfaces can be markedly reduced by 40%to 50%by breaking the symmetric behaviors with the help of the surface structures and motion,which is crucial to diverse applic...The contact time of the droplet impacting on solid surfaces can be markedly reduced by 40%to 50%by breaking the symmetric behaviors with the help of the surface structures and motion,which is crucial to diverse applications involving anti-icing,anti-erosion,self-cleaning,etc.Herein,it is interesting to note that the contact time can be further decreased up to 60% on a moving ridge surface because of corresponding synergy,inspired by flying insects or wind-dispersal seeds.In the present work,the synergistic mechanisms of the reduction in contact time have been revealed by analyzing the 3 basic features,called Leaf-type,Ear-type,and Butterfly-type,according to their morphological and dynamical behaviors.Therefore,a universal theoretical model has arrived by introducing normal and tangential Weber numbers,beyond previous descriptions.Importantly,our study discovers a generalized scaling law of−0.52 between the contact time and new composite Weber number(Wecom),which is feasible to stationary and moving surfaces,suggesting that the limit reduction rate on a moving ridge surface tends to 78%.The present work provides an insight to optimize the corresponding application efficiency by coupling the surface structure and motion.展开更多
基金Supported by the Natural Science Foundation of Jiangsu Province under Grant No BK20130387the Fundamental Research Funds for the Central Universities under Grant No 2242014R30011
文摘Since the massless quantum electrodynamics in 2＋1 dimensions （QEDa） with nonzero gauge boson mass ζ can be used to explain some important traits of high-Tc superconductivity in planar cuprates, it is worthwhile to apply this model to analyze the nature of chiral phase transition at the critical value ζ. Based on the feature of chiral susceptibility, we show that the system at ζ exhibits a second-order phase transition which accords with the nature of appearance of the high-To superconductivity, and the estimated critical exponents around ζ are illustrated.
基金supported by the National Natural Science Foundation of China(grant nos.12002212 and 52036005).
文摘The contact time of the droplet impacting on solid surfaces can be markedly reduced by 40%to 50%by breaking the symmetric behaviors with the help of the surface structures and motion,which is crucial to diverse applications involving anti-icing,anti-erosion,self-cleaning,etc.Herein,it is interesting to note that the contact time can be further decreased up to 60% on a moving ridge surface because of corresponding synergy,inspired by flying insects or wind-dispersal seeds.In the present work,the synergistic mechanisms of the reduction in contact time have been revealed by analyzing the 3 basic features,called Leaf-type,Ear-type,and Butterfly-type,according to their morphological and dynamical behaviors.Therefore,a universal theoretical model has arrived by introducing normal and tangential Weber numbers,beyond previous descriptions.Importantly,our study discovers a generalized scaling law of−0.52 between the contact time and new composite Weber number(Wecom),which is feasible to stationary and moving surfaces,suggesting that the limit reduction rate on a moving ridge surface tends to 78%.The present work provides an insight to optimize the corresponding application efficiency by coupling the surface structure and motion.
