A numerical model for simulating storm surge with nested grid system has been applied to hindcast the coastal flooding on both sides of Taiwan Strait.The simulation results can be used to understand the transport vari...A numerical model for simulating storm surge with nested grid system has been applied to hindcast the coastal flooding on both sides of Taiwan Strait.The simulation results can be used to understand the transport variation and the inundation distribution induced by the storm surge on the interested area during typhoon invades.The case in this study is Typhoon SEPAT,which passed through central Taiwan,China in 2007.The transport characteristics through Taiwan Strait under the influence of Typhoon SEPAT were discussed by comparing the field observations and numerical simulations during the typhoon period.The results indicate that the surge height of Typhoon SEPAT did not respond to the peak of wind waves accompanied with 15 hrs time lag.According to the influence of dynamical forces on the storm surge in Taiwan Strait,the onshore wind is the dominant role of coastal inundation during this typhoon event in Taiwan Strait.By observing the inundation map through the typhoon period,the coasts of Yulin County are verified to be the most serious affected area in the vicinity of Taiwan Strait.展开更多
A new search for two-neutrino double-beta(2νββ)decay of^(136)Xe to the 0+1 excited state of 136Ba is performed with the full EXO-200 dataset.A deep learning-based convolutional neural network is used to discriminat...A new search for two-neutrino double-beta(2νββ)decay of^(136)Xe to the 0+1 excited state of 136Ba is performed with the full EXO-200 dataset.A deep learning-based convolutional neural network is used to discriminate signal from background events.Signal detection efficiency is increased relative to previous searches by EXO-200 by more than a factor of two.With the addition of the Phase II dataset taken with an upgraded detector,the median 90%confidence level half-life sensitivity of 2νββdecay to the 0+1 state of 136Ba is 2.9×10^(24)yr using a total^(136)Xe exposure of 234.1 kg yr.No statistically significant evidence for 2νββdecay to the 0^(+)_(1)state is observed,leading to a lower limit of T2ν1/2(0^(+)→0^(+)_(1))>1.4×10^(24)yr at 90%confidence level,improved by 70%relative to the current world's best constraint.展开更多
文摘A numerical model for simulating storm surge with nested grid system has been applied to hindcast the coastal flooding on both sides of Taiwan Strait.The simulation results can be used to understand the transport variation and the inundation distribution induced by the storm surge on the interested area during typhoon invades.The case in this study is Typhoon SEPAT,which passed through central Taiwan,China in 2007.The transport characteristics through Taiwan Strait under the influence of Typhoon SEPAT were discussed by comparing the field observations and numerical simulations during the typhoon period.The results indicate that the surge height of Typhoon SEPAT did not respond to the peak of wind waves accompanied with 15 hrs time lag.According to the influence of dynamical forces on the storm surge in Taiwan Strait,the onshore wind is the dominant role of coastal inundation during this typhoon event in Taiwan Strait.By observing the inundation map through the typhoon period,the coasts of Yulin County are verified to be the most serious affected area in the vicinity of Taiwan Strait.
文摘A new search for two-neutrino double-beta(2νββ)decay of^(136)Xe to the 0+1 excited state of 136Ba is performed with the full EXO-200 dataset.A deep learning-based convolutional neural network is used to discriminate signal from background events.Signal detection efficiency is increased relative to previous searches by EXO-200 by more than a factor of two.With the addition of the Phase II dataset taken with an upgraded detector,the median 90%confidence level half-life sensitivity of 2νββdecay to the 0+1 state of 136Ba is 2.9×10^(24)yr using a total^(136)Xe exposure of 234.1 kg yr.No statistically significant evidence for 2νββdecay to the 0^(+)_(1)state is observed,leading to a lower limit of T2ν1/2(0^(+)→0^(+)_(1))>1.4×10^(24)yr at 90%confidence level,improved by 70%relative to the current world's best constraint.
