In the process of new urbanization,the population of megacities is increasing rapidly,the scale of cities is expanding,and the supply of service facilities has been unable to meet the demand.As an important carrier of...In the process of new urbanization,the population of megacities is increasing rapidly,the scale of cities is expanding,and the supply of service facilities has been unable to meet the demand.As an important carrier of urban governance and urban management,the police station should properly deal with the existing problems in the urban police stations,and improve the quality of life of residents by optimizing urban service facilities,which is of great significance for the implementation of people-oriented new urbanization.Taking Changping District of Beijing as an example,this study pointed out that there were many problems in police stations in Changping District.For example,the area of land is not up to the standard,the service capacity is not up to the demand,and the facilities are not up to the demand.Then,three planning strategies:adjusting the planning standards of facilities,optimizing the spatial layout of facilities,and strengthening the later guarantee of facilities were put forward,so as to improve people’s satisfaction with life,promote the high-quality development of new urbanization,and provide reference for the supplement of service facilities in megacities.展开更多
Improving rural living environment is an important support for farmers to live and work in peace and contentment,which is of great significance to the shaping of happy and livable homes in rural areas under the backgr...Improving rural living environment is an important support for farmers to live and work in peace and contentment,which is of great significance to the shaping of happy and livable homes in rural areas under the background of "beautiful countryside".Through the comprehensive renovation of the beautiful countryside,great progress has been made in improving the rural living environment in Beijing,but there are still problems in rural settlement landscape such as poor quality of landscape environment,low utilization rate of public space,and insufficient protection of traditional features.This study took the design strategy of rural settlement landscape as the research entry point,took the rural high-quality landscape environment demand and the beautiful rural construction goal as the double guidance,explored the design strategy of improving the quality of rural settlement landscape through the methods of field survey and questionnaire survey,and put forward the following design points:①From the perspective of overall consideration and advantage integration,the overall framework of rural settlement landscape should comprehensively consider rural architectural landscape and living environment landscape;②efforts should be made to create public spaces such as the village landscape image Avenue,landscape sharing garden,and open courtyard in front of the house,so as to improve the environmental quality and spatial vitality of the village;③strengthen the protection of the traditional features of the village,such as the famous ancient trees,the texture of the courtyard,the quality of residential buildings,etc.with a view to promoting the improvement and overall improvement of the rural environment.展开更多
[目的]从轮钟花的根中提取出蜘蛛果多糖(Spider fruit polysaccharide)并研究其对RAW264.7细胞的免疫调控作用。[方法]通过超声提取法提取蜘蛛果多糖,CCK-8法检测(脂多糖)LPS对RAW264.7细胞增殖的情况,硝酸还原酶法测定蜘蛛果多糖对RAW2...[目的]从轮钟花的根中提取出蜘蛛果多糖(Spider fruit polysaccharide)并研究其对RAW264.7细胞的免疫调控作用。[方法]通过超声提取法提取蜘蛛果多糖,CCK-8法检测(脂多糖)LPS对RAW264.7细胞增殖的情况,硝酸还原酶法测定蜘蛛果多糖对RAW264.7细胞代谢NO的水平,ELISA法测定蜘蛛果多糖对RAW264.7细胞分泌TNF-α、IL-6水平的情况。[结果]蜘蛛果多糖在25μg/mL~400μg/mL浓度范围内能促进RAW264.7细胞的增殖;与空白对照组相比,蜘蛛果多糖能显著增加RAW264.7细胞的NO、IL-6及TNF-α分泌量,与LPS模型组相比,则能显著降低RAW264.7细胞的NO、IL-6及TNF-α分泌量。[结论]蜘蛛果多糖可以激活巨噬细胞,调节机体免疫力。展开更多
基金Youth Fund Project of the National Natural Science Foundation of China(51608009)Youth Top Talent Training Project of Support Plan for the Construction of High-level Teachers of Beijing Municipal Colleges and Universities in 2019(CIT&TCD201904010).
文摘In the process of new urbanization,the population of megacities is increasing rapidly,the scale of cities is expanding,and the supply of service facilities has been unable to meet the demand.As an important carrier of urban governance and urban management,the police station should properly deal with the existing problems in the urban police stations,and improve the quality of life of residents by optimizing urban service facilities,which is of great significance for the implementation of people-oriented new urbanization.Taking Changping District of Beijing as an example,this study pointed out that there were many problems in police stations in Changping District.For example,the area of land is not up to the standard,the service capacity is not up to the demand,and the facilities are not up to the demand.Then,three planning strategies:adjusting the planning standards of facilities,optimizing the spatial layout of facilities,and strengthening the later guarantee of facilities were put forward,so as to improve people’s satisfaction with life,promote the high-quality development of new urbanization,and provide reference for the supplement of service facilities in megacities.
基金Sponsored by Youth Fund Project of the National Natural Science Foundation of China(51608009)Youth Top Talent Training Project of Support Plan for the Construction of High-level Teachers of Beijing Municipal Colleges and Universities in 2019(CIT&TCD201904010).
文摘Improving rural living environment is an important support for farmers to live and work in peace and contentment,which is of great significance to the shaping of happy and livable homes in rural areas under the background of "beautiful countryside".Through the comprehensive renovation of the beautiful countryside,great progress has been made in improving the rural living environment in Beijing,but there are still problems in rural settlement landscape such as poor quality of landscape environment,low utilization rate of public space,and insufficient protection of traditional features.This study took the design strategy of rural settlement landscape as the research entry point,took the rural high-quality landscape environment demand and the beautiful rural construction goal as the double guidance,explored the design strategy of improving the quality of rural settlement landscape through the methods of field survey and questionnaire survey,and put forward the following design points:①From the perspective of overall consideration and advantage integration,the overall framework of rural settlement landscape should comprehensively consider rural architectural landscape and living environment landscape;②efforts should be made to create public spaces such as the village landscape image Avenue,landscape sharing garden,and open courtyard in front of the house,so as to improve the environmental quality and spatial vitality of the village;③strengthen the protection of the traditional features of the village,such as the famous ancient trees,the texture of the courtyard,the quality of residential buildings,etc.with a view to promoting the improvement and overall improvement of the rural environment.
文摘[目的]从轮钟花的根中提取出蜘蛛果多糖(Spider fruit polysaccharide)并研究其对RAW264.7细胞的免疫调控作用。[方法]通过超声提取法提取蜘蛛果多糖,CCK-8法检测(脂多糖)LPS对RAW264.7细胞增殖的情况,硝酸还原酶法测定蜘蛛果多糖对RAW264.7细胞代谢NO的水平,ELISA法测定蜘蛛果多糖对RAW264.7细胞分泌TNF-α、IL-6水平的情况。[结果]蜘蛛果多糖在25μg/mL~400μg/mL浓度范围内能促进RAW264.7细胞的增殖;与空白对照组相比,蜘蛛果多糖能显著增加RAW264.7细胞的NO、IL-6及TNF-α分泌量,与LPS模型组相比,则能显著降低RAW264.7细胞的NO、IL-6及TNF-α分泌量。[结论]蜘蛛果多糖可以激活巨噬细胞,调节机体免疫力。
