An experimental scheme for the generation of directional focusing waves in a wave basin is established in this paper. The effects of the directional range, frequency width and center frequency on the wave focusing are...An experimental scheme for the generation of directional focusing waves in a wave basin is established in this paper. The effects of the directional range, frequency width and center frequency on the wave focusing are studied. The distribution of maximum amplitude and the evolution of time series and spectra during wave packet propagation and the variation of water surface parameters are extensively investigated. The results reveal that the characteristics of focusing waves are significantly influenced by wave directionality and that the breaking criteria for directional waves are distinctly different from those for unidirectional waves.展开更多
1 Art Market Issue 8,2023 The Fashion of Visiting Exhibition in Summer Season In recent years,under the background of the integration of culture and tourism,museums and art galleries have become internet famous sites....1 Art Market Issue 8,2023 The Fashion of Visiting Exhibition in Summer Season In recent years,under the background of the integration of culture and tourism,museums and art galleries have become internet famous sites.On the one hand,the fashion of visiting exhibition in summer season shows the public's strong interest in appreciating the art of cultural relics and the network celebrity effect of high-quality exhibitions"breaking the circle".On the other hand,it highlights the contradiction between people's growing spiritual and cultural needs and the imbalance and insufficiency of high-quality cultural supply,as well as some chaos caused by the lack of"museum culture".展开更多
基金This research was partially supported by the National Natural Science Foundation of China (Grant No. 50379002),the Korea Research Council of Public Science and Technology (Principal R&D Program) and Korea Ministry of Science and Technology (International Collaboration Research Program)
文摘An experimental scheme for the generation of directional focusing waves in a wave basin is established in this paper. The effects of the directional range, frequency width and center frequency on the wave focusing are studied. The distribution of maximum amplitude and the evolution of time series and spectra during wave packet propagation and the variation of water surface parameters are extensively investigated. The results reveal that the characteristics of focusing waves are significantly influenced by wave directionality and that the breaking criteria for directional waves are distinctly different from those for unidirectional waves.
文摘1 Art Market Issue 8,2023 The Fashion of Visiting Exhibition in Summer Season In recent years,under the background of the integration of culture and tourism,museums and art galleries have become internet famous sites.On the one hand,the fashion of visiting exhibition in summer season shows the public's strong interest in appreciating the art of cultural relics and the network celebrity effect of high-quality exhibitions"breaking the circle".On the other hand,it highlights the contradiction between people's growing spiritual and cultural needs and the imbalance and insufficiency of high-quality cultural supply,as well as some chaos caused by the lack of"museum culture".