This paper reports a method to make hazard maps of sediment disasters resulting from an earthquake and following heavy rainfall for the entire region of Gunma prefecture, Japan. Firstly, we identified the slopes in th...This paper reports a method to make hazard maps of sediment disasters resulting from an earthquake and following heavy rainfall for the entire region of Gunma prefecture, Japan. Firstly, we identified the slopes in the study area, which are susceptible to large-scale landslides and land failures during an earthquake with a magnitude of seven on the Richter scale. To analyze the sheer volume of the data, we employed a statistical method to evaluate the susceptibility, mainly considering geomorphologic conditions. Secondly, we extracted mudflow and slope failure susceptible areas and potential flooding zones resulting from a damming at a river triggered by the earthquake and heavy rainfall, and we identified the settlements which would be isolated by the road disruption caused by the sediment disasters. As the result, 359 settlements were classified as potential isolation areas. Combining the above-mentioned susceptibility maps, we obtained two types of sediment disaster hazard maps of the study area, depicting the potential hazards which would occur during the earthquake and the disasters which would be caused by heavy rainfall following the quake, respectively. These hazard maps and the disaster information would be useful for the regional disaster prevention planning and countermeasures in the future.展开更多
The concept of state vector stems from statistical physics, where it is usually used to describe the evolution of a continuum field in its way of coarse-graining. In this paper, the state vector is employed to depict ...The concept of state vector stems from statistical physics, where it is usually used to describe the evolution of a continuum field in its way of coarse-graining. In this paper, the state vector is employed to depict the evolution of seismicity quantitatively, and some interesting results are presented. The authors investigated some famous earthquake cases (e.g., the Haicheng earthquake, the Tangshan earthquake, the west Kunlun Mountains earthquake, etc.) and found that the state vectors evidently change prior to the occurrence of large earthquakes. Thus it is believed that the state vector can be used as a kind of precursor to predict large earthquakes.展开更多
Based on comprehensive analysis of the impact of population aging to social and economic development,a comprehensive evaluation system including 18 indexes was constructed for evaluating regional pressure of populatio...Based on comprehensive analysis of the impact of population aging to social and economic development,a comprehensive evaluation system including 18 indexes was constructed for evaluating regional pressure of population aging on social and economic development.Using statistics data of 31 regions in China from 2004 to 2008,the pressure of population aging on social and economic development,was comprehensively evaluated by using the factor analysis method.The spatial distribution of population aging in China was also analyzed.This study is to provide scientific basis for government to make strategies of coping with population aging according to regional pressure of population aging on social and economic development in China.展开更多
OBJECTIVE: To analyze the application laws of clini- cal drugs by descriptive statistical method with the clinical literatures guided by "lung being connect- ed with large intestine" used as the object. METHODS: R...OBJECTIVE: To analyze the application laws of clini- cal drugs by descriptive statistical method with the clinical literatures guided by "lung being connect- ed with large intestine" used as the object. METHODS: Retrieve publicly published clinical litera- tures about "lung being connected with large intes- tine" in recent 30 years, establish the data base of clini- cal literature, and study on the clinically drug-used laws by descriptive statistical analytic method. RESULTS: The common high frequent drugs used for the lung-intestine related diseases were Gualou (Ructus Trichsanthis), Dahuang (Radix et Rhizoma), Kuxingren (Semen Armeniacae Amarum), Gancao (Radix Glycyrrhizae), Houpu (Cortex Magnoliae Offi- cinalis), Zhishi (Fructus Aurantii Immaturus). For the different clinical syndrome types, in the commonly used drugs there were different characteristics, re- flecting the principle of TCM syndrome differentia- tion treatment.CONCLUSION: The common high frequent drugs used for the lung-intestine related diseases are Gua- Iou (Fructus Trichsantffis), Dahuang (Radix et Rhi- zoma), Kuxingren (Semen Armeniacae Amarum), Gancao (Radix Glycyrrhizae), Houpu (Cortex Mag- noliae Officinalis), Zhishi (Fructus Aurantii Immatu- rus), which are commonly-used drugs for the lung-intestine related diseases ,with differences for different syndrome types.展开更多
文摘This paper reports a method to make hazard maps of sediment disasters resulting from an earthquake and following heavy rainfall for the entire region of Gunma prefecture, Japan. Firstly, we identified the slopes in the study area, which are susceptible to large-scale landslides and land failures during an earthquake with a magnitude of seven on the Richter scale. To analyze the sheer volume of the data, we employed a statistical method to evaluate the susceptibility, mainly considering geomorphologic conditions. Secondly, we extracted mudflow and slope failure susceptible areas and potential flooding zones resulting from a damming at a river triggered by the earthquake and heavy rainfall, and we identified the settlements which would be isolated by the road disruption caused by the sediment disasters. As the result, 359 settlements were classified as potential isolation areas. Combining the above-mentioned susceptibility maps, we obtained two types of sediment disaster hazard maps of the study area, depicting the potential hazards which would occur during the earthquake and the disasters which would be caused by heavy rainfall following the quake, respectively. These hazard maps and the disaster information would be useful for the regional disaster prevention planning and countermeasures in the future.
基金NSFC under Grant No.10232050The Information Construction of Knowledge Innovation Projects of the Chinese Academy of Sciences"Supercomputing Environment Construction and Application"(INF105-SCE-2-02)+1 种基金Seismological Joint Foundation(305016)the Special Funds for Major State Basic Research Project under Grant No.2002CB412706 and 2001 BA601 B01-01-01-04.
文摘The concept of state vector stems from statistical physics, where it is usually used to describe the evolution of a continuum field in its way of coarse-graining. In this paper, the state vector is employed to depict the evolution of seismicity quantitatively, and some interesting results are presented. The authors investigated some famous earthquake cases (e.g., the Haicheng earthquake, the Tangshan earthquake, the west Kunlun Mountains earthquake, etc.) and found that the state vectors evidently change prior to the occurrence of large earthquakes. Thus it is believed that the state vector can be used as a kind of precursor to predict large earthquakes.
基金supported by a grant from the Major Programs of Fundamental Special Work of National Science and Technology (Grand No.2007FY110300),which comes from Ministryof Science and Technology of the People’s Republic of China
文摘Based on comprehensive analysis of the impact of population aging to social and economic development,a comprehensive evaluation system including 18 indexes was constructed for evaluating regional pressure of population aging on social and economic development.Using statistics data of 31 regions in China from 2004 to 2008,the pressure of population aging on social and economic development,was comprehensively evaluated by using the factor analysis method.The spatial distribution of population aging in China was also analyzed.This study is to provide scientific basis for government to make strategies of coping with population aging according to regional pressure of population aging on social and economic development in China.
基金Supported by National Key Basic Research Development Plan(N0.2009CB522701)Anhui Natural Science foundation(N0.090416246)
文摘OBJECTIVE: To analyze the application laws of clini- cal drugs by descriptive statistical method with the clinical literatures guided by "lung being connect- ed with large intestine" used as the object. METHODS: Retrieve publicly published clinical litera- tures about "lung being connected with large intes- tine" in recent 30 years, establish the data base of clini- cal literature, and study on the clinically drug-used laws by descriptive statistical analytic method. RESULTS: The common high frequent drugs used for the lung-intestine related diseases were Gualou (Ructus Trichsanthis), Dahuang (Radix et Rhizoma), Kuxingren (Semen Armeniacae Amarum), Gancao (Radix Glycyrrhizae), Houpu (Cortex Magnoliae Offi- cinalis), Zhishi (Fructus Aurantii Immaturus). For the different clinical syndrome types, in the commonly used drugs there were different characteristics, re- flecting the principle of TCM syndrome differentia- tion treatment.CONCLUSION: The common high frequent drugs used for the lung-intestine related diseases are Gua- Iou (Fructus Trichsantffis), Dahuang (Radix et Rhi- zoma), Kuxingren (Semen Armeniacae Amarum), Gancao (Radix Glycyrrhizae), Houpu (Cortex Mag- noliae Officinalis), Zhishi (Fructus Aurantii Immatu- rus), which are commonly-used drugs for the lung-intestine related diseases ,with differences for different syndrome types.