At 13：46 on March 11, 2011（Beijing time）, an earthquake of Mw=9.0 occurred in Japan. By comparing the tsunami data from Guanhekou marine station with other tsunami wave observation gathered from southeast coastal a...At 13：46 on March 11, 2011（Beijing time）, an earthquake of Mw=9.0 occurred in Japan. By comparing the tsunami data from Guanhekou marine station with other tsunami wave observation gathered from southeast coastal area of China, it was evident that, only in Guanhekou, the position of the maximum wave height appeared in the middle part rather than in the front of the tsunami wave train. A numerical model of tsunami propagation based on 2-D nonlinear shallow water equations was built to study the impact range and main causes of the special tsunami waveform discovered in Jiangsu coastal area. The results showed that nearly three-quarters of the Jiangsu coastal area, mainly comprised the part north of the radial sand ridges, reached its maximum tsunami wave height in the middle part of the wave train. The main cause of the special waveform was the special underwater topography condition of the Yellow Sea and the East China Sea area, which influenced the tsunami propagation and waveform significantly. Although land boundary reflection brought an effect on the position of the maximum wave height to a certain extent, as the limits of the incident waveform and distances between the observation points and shore, it was not the dominant influence factor of the special waveform. Coriolis force＇s impact on the tsunami waves was so weak that it was not the main cause for the special phenomenon in Jiangsu coastal area. The study reminds us that the most destructive wave might not appear in the first one in tsunami wave train.展开更多
Objective: to analyze the causes of the grassroots army physical training, and to give targeted research.Methods: the outpatient information registration form of 2019-2020 was selected, and through the data analysis o...Objective: to analyze the causes of the grassroots army physical training, and to give targeted research.Methods: the outpatient information registration form of 2019-2020 was selected, and through the data analysis of training injury cases, the number of patients was 100.A total of 100 training injury patients included 39 cases, 31 cases, 20 cases and 10 cases of organ injury, bone tissue injury, joint injury and other injuries each. By analyzing the reasons, and doing the countermeasure analysis, compare the specific effect. Results: through the analysis of the training injury, 13 cases, 8 cases, 8 cases, 4 cases, 3 cases, t=5.096,7.035,4.832,3.621, p <0.05. The quality of mental, daily life, society, psychological ± 3.3,68.4 ± 2.5,20.2 ± 2.4,68.5 ± 2.2, respectively. The overall situation improved significantly after prevention (p <0.05).By comparing the satisfaction of patients before and after prevention, prevention was prone to training injury, satisfaction was 66.3 ± 3.7 points, training injury significantly decreased, the satisfaction score was 92.2 ± 2.1, with certain differences (t=12.565) p <0.05. Conclusion: analyze the causes of army training injury and give some countermeasures.展开更多
The damage status of Apriona swainsoni （Hope） in Pingdingshan area is investigated combined with historical data, and the causes of heavy occurrence are analyzed. Moreover, according to production practice, it is pr...The damage status of Apriona swainsoni （Hope） in Pingdingshan area is investigated combined with historical data, and the causes of heavy occurrence are analyzed. Moreover, according to production practice, it is proposed that forecast of pests and annual control countermeasures are important for the control of A. swainsoni.展开更多
基金financially supported by the Fundamental Research Funds for the Central Universities,Hohai University(Grant No.2011B06014)the Fundamental Research Funds for the Central Public Welfare Research Institutes,Nanjing Hydraulic Research Institute(Grant No.YN912001)+2 种基金the Natural Science Foundation of Jiangsu Province(Grant No.BK2012411)the National Science & Technology Pillar Program(Grant No.2012BAB03B01)the Cultivation of Jiangsu Province Graduate Innovation Project(Grant No.KYZZ_0151)
文摘At 13：46 on March 11, 2011（Beijing time）, an earthquake of Mw=9.0 occurred in Japan. By comparing the tsunami data from Guanhekou marine station with other tsunami wave observation gathered from southeast coastal area of China, it was evident that, only in Guanhekou, the position of the maximum wave height appeared in the middle part rather than in the front of the tsunami wave train. A numerical model of tsunami propagation based on 2-D nonlinear shallow water equations was built to study the impact range and main causes of the special tsunami waveform discovered in Jiangsu coastal area. The results showed that nearly three-quarters of the Jiangsu coastal area, mainly comprised the part north of the radial sand ridges, reached its maximum tsunami wave height in the middle part of the wave train. The main cause of the special waveform was the special underwater topography condition of the Yellow Sea and the East China Sea area, which influenced the tsunami propagation and waveform significantly. Although land boundary reflection brought an effect on the position of the maximum wave height to a certain extent, as the limits of the incident waveform and distances between the observation points and shore, it was not the dominant influence factor of the special waveform. Coriolis force＇s impact on the tsunami waves was so weak that it was not the main cause for the special phenomenon in Jiangsu coastal area. The study reminds us that the most destructive wave might not appear in the first one in tsunami wave train.
文摘Objective: to analyze the causes of the grassroots army physical training, and to give targeted research.Methods: the outpatient information registration form of 2019-2020 was selected, and through the data analysis of training injury cases, the number of patients was 100.A total of 100 training injury patients included 39 cases, 31 cases, 20 cases and 10 cases of organ injury, bone tissue injury, joint injury and other injuries each. By analyzing the reasons, and doing the countermeasure analysis, compare the specific effect. Results: through the analysis of the training injury, 13 cases, 8 cases, 8 cases, 4 cases, 3 cases, t=5.096,7.035,4.832,3.621, p <0.05. The quality of mental, daily life, society, psychological ± 3.3,68.4 ± 2.5,20.2 ± 2.4,68.5 ± 2.2, respectively. The overall situation improved significantly after prevention (p <0.05).By comparing the satisfaction of patients before and after prevention, prevention was prone to training injury, satisfaction was 66.3 ± 3.7 points, training injury significantly decreased, the satisfaction score was 92.2 ± 2.1, with certain differences (t=12.565) p <0.05. Conclusion: analyze the causes of army training injury and give some countermeasures.
文摘The damage status of Apriona swainsoni （Hope） in Pingdingshan area is investigated combined with historical data, and the causes of heavy occurrence are analyzed. Moreover, according to production practice, it is proposed that forecast of pests and annual control countermeasures are important for the control of A. swainsoni.
