The data on the hillslope and channelized debris flows in the Shitou area of central Taiwan occurred during Typhoons Toraji and Nali in 2001 were applied in this paper. The geomorphic parameters, including the flow le...The data on the hillslope and channelized debris flows in the Shitou area of central Taiwan occurred during Typhoons Toraji and Nali in 2001 were applied in this paper. The geomorphic parameters, including the flow length, gully gradient, drainage area and form factor of the debris flows were determined by spatial analysis using a Geographic Information System (GIS) based on the data derived from field investigation, aerial photographs, and topographical maps. According to such determined geomorphic parameters, the threshold conditions and empirical equations, such as the relationship between the gully gradient and drainage area and that between gully length and drainage area and topographic parameter, are presented and used to distinguish the geomorphic characteristics between the channelized and hillslope debris flows.展开更多
This study assessed elemental concentrations in the serum of 154 preschool children in central Taiwan via instrumental neutron activation analysis （INAA）. A total of eight elements, Br, C1, Fe, Na, Rb, Sc, Se and Zn...This study assessed elemental concentrations in the serum of 154 preschool children in central Taiwan via instrumental neutron activation analysis （INAA）. A total of eight elements, Br, C1, Fe, Na, Rb, Sc, Se and Zn of sera for Taiwan Residents preschool children living at four residential areas： Taichung city, Taichung urban townships and in a remote area inhabited by two groups of aborigines, Atayal and Bunun were determined. Standard reference materials （tomato leaves, NIST-SRM 1570a, and lichen, IAEA-336） were used as quality control standards to crosscheck the accuracy. Residential area, socioeconomic status and gender were shown to significantly influence serum levels of the eight trace elements. Statistical analysis revealed several different gender patterns via the two-tailed student＇s test. A quantified index of agreement （AT） was used to classify these elements. Small AT indicated a close consistency, while large AT indicated a larger fluctuation, or less agreement, such that the correlation between the elements could be interpreted using a series of quantified indices at the serum levels of preschool children.展开更多
In this study, the sectional characteristics of temperature, salinity and density off the central Zhejiang coast were analyzed using three sections of observational data in the spring of 2016. The results are as follo...In this study, the sectional characteristics of temperature, salinity and density off the central Zhejiang coast were analyzed using three sections of observational data in the spring of 2016. The results are as follows:(1) a cold water patch was observed in the middle layer of sections from 10 to 25 m, and a weak upwelling was observed at the upper layer near the central Zhejiang coast;(2) several thermoclines, inverted thermoclines, and haloclines were observed in the survey area;(3) the Taiwan Warm Current Water(TWCW) climbing from the slope towards the survey area affected the thermocline, making it thinner and intensified; however, the TWCW was not strong enough to break through the thermocline to reach the sea surface.展开更多
文摘The data on the hillslope and channelized debris flows in the Shitou area of central Taiwan occurred during Typhoons Toraji and Nali in 2001 were applied in this paper. The geomorphic parameters, including the flow length, gully gradient, drainage area and form factor of the debris flows were determined by spatial analysis using a Geographic Information System (GIS) based on the data derived from field investigation, aerial photographs, and topographical maps. According to such determined geomorphic parameters, the threshold conditions and empirical equations, such as the relationship between the gully gradient and drainage area and that between gully length and drainage area and topographic parameter, are presented and used to distinguish the geomorphic characteristics between the channelized and hillslope debris flows.
文摘This study assessed elemental concentrations in the serum of 154 preschool children in central Taiwan via instrumental neutron activation analysis （INAA）. A total of eight elements, Br, C1, Fe, Na, Rb, Sc, Se and Zn of sera for Taiwan Residents preschool children living at four residential areas： Taichung city, Taichung urban townships and in a remote area inhabited by two groups of aborigines, Atayal and Bunun were determined. Standard reference materials （tomato leaves, NIST-SRM 1570a, and lichen, IAEA-336） were used as quality control standards to crosscheck the accuracy. Residential area, socioeconomic status and gender were shown to significantly influence serum levels of the eight trace elements. Statistical analysis revealed several different gender patterns via the two-tailed student＇s test. A quantified index of agreement （AT） was used to classify these elements. Small AT indicated a close consistency, while large AT indicated a larger fluctuation, or less agreement, such that the correlation between the elements could be interpreted using a series of quantified indices at the serum levels of preschool children.
基金The National Key R&D Program of China under contract No.2018YFC1406302the National Basic Research Program of China under contract No.2015CB954004the National Natural Science Foundation of China under contract Nos 41230961,U1405233 and 41776027
文摘In this study, the sectional characteristics of temperature, salinity and density off the central Zhejiang coast were analyzed using three sections of observational data in the spring of 2016. The results are as follows:(1) a cold water patch was observed in the middle layer of sections from 10 to 25 m, and a weak upwelling was observed at the upper layer near the central Zhejiang coast;(2) several thermoclines, inverted thermoclines, and haloclines were observed in the survey area;(3) the Taiwan Warm Current Water(TWCW) climbing from the slope towards the survey area affected the thermocline, making it thinner and intensified; however, the TWCW was not strong enough to break through the thermocline to reach the sea surface.
