Yushan is the most famous location for snow in Taiwan Willie snowIali in the subtropical zone is rare. When it is snowing in Yushan, people are experiencing unusually cold and wet weather elsewhere in Taiwan. In this ...Yushan is the most famous location for snow in Taiwan Willie snowIali in the subtropical zone is rare. When it is snowing in Yushan, people are experiencing unusually cold and wet weather elsewhere in Taiwan. In this study, Yushan snowfall activity from 1979 to 2009 and the related atmosphere circulation were examined with the Taiwan Central Weather Bureau＇s Yushan weather station observations and the National Centers for Environmental Prediction/Department of Energy （NCEP/DOE） reanalysis atmospheric data. To provide a quantitative measure of snowfall events, a snowfall activity index （SAI） was defined in this study. The time series of yearly SAIs shows that Yushan snowfall activity for an active year, such as 1983 （SAI =39 153） was ~118 times larger than for an inactive year, such as 1999 （SAI=331）. Our analyses show that snowfall activity is closely related to the position of the East Asian Trough （EAT） and the strength of the West Pacific High （WPH）. In active years, when the EAT shifted eastward and the strength of WPH increased, an anomalous anticyclone occurred in the West Pacific. This anticyclone introduced anomalous southwesterly flows along the southeastern cost of China's Mainland and over Taiwan, resulting in a wetter-than-normal atmosphere that favored snowfall. Alternatively, in inactive years, a drierhan-normal atmosphere resulted in sluggish snowfall seasons.展开更多
Historic urban areas are a crucial component of urban heritage,embodying the collective memory of urban development and possessing distinctive urban textures and cultural attributes.However,the growing impact of globa...Historic urban areas are a crucial component of urban heritage,embodying the collective memory of urban development and possessing distinctive urban textures and cultural attributes.However,the growing impact of globalization on the urban environment poses challenges to historic urban areas,including diminishing social recognition,aging infrastructure,loss of vitality,and cultural erosion.To address these challenges,this study proposes a novel approach to revitalizing historic urban areas by employing space syntax methodology.The study focuses on Yushan Historic District in China as a case study and uses spatial models within space syntax to describe,analyze,and interpret its urban morphology.The objective is to enhance urban vitality while preserving the heritage fabric of historic urban areas.Additionally,it aims to contribute to the advancement of space syntax research,specifically in the context of urban renewal and revitalization of historic districts.The findings reveal the spatial factors that contribute to the generation of vitality within the district,identify areas requiring intervention,and provide strategies for revitalizing historic urban areas.This study demonstrates the potential of utilizing a space syntax approach in urban revitalization,providing valuable guidance for effectively conserving urban heritage within the context of urban renewal.展开更多
舟山市鱼山绿色石化基地是我国七大石化基地的重要组成部分,也是打造全国首个绿色发展标杆的石化基地,液化天然气(LNG)码头建设对基地发展十分重要。通过挖掘水域优势,将LNG船舶移动安全区设定为前1 n mile、后0.5 n mile、左右各1倍船...舟山市鱼山绿色石化基地是我国七大石化基地的重要组成部分,也是打造全国首个绿色发展标杆的石化基地,液化天然气(LNG)码头建设对基地发展十分重要。通过挖掘水域优势,将LNG船舶移动安全区设定为前1 n mile、后0.5 n mile、左右各1倍船长(约300 m),给对向船舶预留了约360 m宽的通道,解决了LNG船舶航行过程中对向封控的问题。通过使用代入法,分区段定量分析LNG船舶进出港过程中需要协调避让的船舶数量,形成LNG码头建设后的交通场景。通过对沪舟通道岱山北航道桥、LNG船舶和周围水域的三维建模,采用操纵试验手段,得出LNG专用航道转向点与跨海大桥的安全间距不宜小于6倍船长。展开更多
基金sponsored jointly by the National 937 Project (2010CB951804) and the Chinese Culture University
文摘Yushan is the most famous location for snow in Taiwan Willie snowIali in the subtropical zone is rare. When it is snowing in Yushan, people are experiencing unusually cold and wet weather elsewhere in Taiwan. In this study, Yushan snowfall activity from 1979 to 2009 and the related atmosphere circulation were examined with the Taiwan Central Weather Bureau＇s Yushan weather station observations and the National Centers for Environmental Prediction/Department of Energy （NCEP/DOE） reanalysis atmospheric data. To provide a quantitative measure of snowfall events, a snowfall activity index （SAI） was defined in this study. The time series of yearly SAIs shows that Yushan snowfall activity for an active year, such as 1983 （SAI =39 153） was ~118 times larger than for an inactive year, such as 1999 （SAI=331）. Our analyses show that snowfall activity is closely related to the position of the East Asian Trough （EAT） and the strength of the West Pacific High （WPH）. In active years, when the EAT shifted eastward and the strength of WPH increased, an anomalous anticyclone occurred in the West Pacific. This anticyclone introduced anomalous southwesterly flows along the southeastern cost of China's Mainland and over Taiwan, resulting in a wetter-than-normal atmosphere that favored snowfall. Alternatively, in inactive years, a drierhan-normal atmosphere resulted in sluggish snowfall seasons.
文摘Historic urban areas are a crucial component of urban heritage,embodying the collective memory of urban development and possessing distinctive urban textures and cultural attributes.However,the growing impact of globalization on the urban environment poses challenges to historic urban areas,including diminishing social recognition,aging infrastructure,loss of vitality,and cultural erosion.To address these challenges,this study proposes a novel approach to revitalizing historic urban areas by employing space syntax methodology.The study focuses on Yushan Historic District in China as a case study and uses spatial models within space syntax to describe,analyze,and interpret its urban morphology.The objective is to enhance urban vitality while preserving the heritage fabric of historic urban areas.Additionally,it aims to contribute to the advancement of space syntax research,specifically in the context of urban renewal and revitalization of historic districts.The findings reveal the spatial factors that contribute to the generation of vitality within the district,identify areas requiring intervention,and provide strategies for revitalizing historic urban areas.This study demonstrates the potential of utilizing a space syntax approach in urban revitalization,providing valuable guidance for effectively conserving urban heritage within the context of urban renewal.
文摘舟山市鱼山绿色石化基地是我国七大石化基地的重要组成部分,也是打造全国首个绿色发展标杆的石化基地,液化天然气(LNG)码头建设对基地发展十分重要。通过挖掘水域优势,将LNG船舶移动安全区设定为前1 n mile、后0.5 n mile、左右各1倍船长(约300 m),给对向船舶预留了约360 m宽的通道,解决了LNG船舶航行过程中对向封控的问题。通过使用代入法,分区段定量分析LNG船舶进出港过程中需要协调避让的船舶数量,形成LNG码头建设后的交通场景。通过对沪舟通道岱山北航道桥、LNG船舶和周围水域的三维建模,采用操纵试验手段,得出LNG专用航道转向点与跨海大桥的安全间距不宜小于6倍船长。
