Human activities on street spaces are affected by both physical and non-physical settings on streets.These two aspects are primarily impacted by land use which results in the uneven distribution of different activitie...Human activities on street spaces are affected by both physical and non-physical settings on streets.These two aspects are primarily impacted by land use which results in the uneven distribution of different activities on streets.This research investigates land use patterns and their characteristics in association to user’s behaviors.By using mixed qualitative and quantitative research methods,e.g.,place-centered behavioral map,observation,visual encounter surveys,machine learning,the relationship between user’s behavior and land use characteristics along the street is unveiled.All user behaviors along both types of streets were classified into six main categories,with 26 subcategories.The observation results show that the residential use of land along the street was transformed into the commercial use for various types of shophouses based on the resident’s ideas.There is a great correlation between land use and user’s activities.These findings give support to authorities to manage urban streets and develop a sustainable policy for improving street spaces.Further,this research contributes useful information to urban designers and planners in creating a successful street space that is appropriate for the Vietnam Community.展开更多
以新疆特色馕制品为研究对象,建立馕制品丙烯酰胺固相萃取-高效液相的检测方法。以甲醇作为提取剂,采用固相萃取小柱（SPE）对样品液进行前处理,HPLC分析检测,色谱条件为：反相C18色谱柱,以甲醇和水溶液（v：v,5：95）作为流动相,流速为...以新疆特色馕制品为研究对象,建立馕制品丙烯酰胺固相萃取-高效液相的检测方法。以甲醇作为提取剂,采用固相萃取小柱（SPE）对样品液进行前处理,HPLC分析检测,色谱条件为：反相C18色谱柱,以甲醇和水溶液（v：v,5：95）作为流动相,流速为1 m L/min,进样量10μL,紫外检测波长200 nm。结果表明,该方法标准曲线线性关系良好,线性范围为1~7μg/m L,相关系数R2=0.9991,最低检出限为0.87μg/kg,平均回收率为78.46%,RSD为2.518%,测得新疆馕制品丙烯酰胺的含量为60.51~417.00μg/kg。该方法操作简便快捷,灵敏度高,适用于馕制品中丙烯酰胺的快速测定。展开更多
文摘Human activities on street spaces are affected by both physical and non-physical settings on streets.These two aspects are primarily impacted by land use which results in the uneven distribution of different activities on streets.This research investigates land use patterns and their characteristics in association to user’s behaviors.By using mixed qualitative and quantitative research methods,e.g.,place-centered behavioral map,observation,visual encounter surveys,machine learning,the relationship between user’s behavior and land use characteristics along the street is unveiled.All user behaviors along both types of streets were classified into six main categories,with 26 subcategories.The observation results show that the residential use of land along the street was transformed into the commercial use for various types of shophouses based on the resident’s ideas.There is a great correlation between land use and user’s activities.These findings give support to authorities to manage urban streets and develop a sustainable policy for improving street spaces.Further,this research contributes useful information to urban designers and planners in creating a successful street space that is appropriate for the Vietnam Community.
文摘以新疆特色馕制品为研究对象,建立馕制品丙烯酰胺固相萃取-高效液相的检测方法。以甲醇作为提取剂,采用固相萃取小柱（SPE）对样品液进行前处理,HPLC分析检测,色谱条件为：反相C18色谱柱,以甲醇和水溶液（v：v,5：95）作为流动相,流速为1 m L/min,进样量10μL,紫外检测波长200 nm。结果表明,该方法标准曲线线性关系良好,线性范围为1~7μg/m L,相关系数R2=0.9991,最低检出限为0.87μg/kg,平均回收率为78.46%,RSD为2.518%,测得新疆馕制品丙烯酰胺的含量为60.51~417.00μg/kg。该方法操作简便快捷,灵敏度高,适用于馕制品中丙烯酰胺的快速测定。
