In hot-humid climates,particularly in sub-Saharan Africa(SSA),ambient temperatures and relative humidity are as high as 35°C and 84%,respectively,requiring the use of mechanical cooling systems for indoor thermal...In hot-humid climates,particularly in sub-Saharan Africa(SSA),ambient temperatures and relative humidity are as high as 35°C and 84%,respectively,requiring the use of mechanical cooling systems for indoor thermal comfort.Split-type vapor-compression air-conditioners(SVAC)are mainly used for space cooling in SSA and consume 60-80%of total energy consumption in commercial and public buildings.Appropriate control strategy of the indoor set-point temperature of SVAC can result in significant energy savings in these buildings.In this study,modeling and dynamic simulation have been conducted using EnergyPlus to predict the energy saving potential and indoor thermal comfort of buildings in hot-humid climates by controlling set-point temperature of the SVAC.In a case study,climatic data for Ghana,was used to predict the energy saving potential and indoor thermal comfort.The study results revealed that,to ensure indoor thermal comfort at high outdoor temperature condition of 35°C,the least and optimum set-point temperatures of the SVAC should be 21°C and 25°C,respectively.On the other hand,for low outdoor temperature condition,the least and optimum set-point temperatures were 22°C and 26°C,respectively.Considering 1-star and 2-star rated SVACs which are dominantly used in Ghana,operating at 21-25°C in the case of high outdoor conditions,and 22-26°C for low outdoor conditions relative to the least temperatures resulted in energy savings of 8-33%and 12-44%,respectively.展开更多
移动轨迹数据的热点区域挖掘在城市交通管理、道路规划和基于位置的服务中具有重要的作用。传统数据挖掘方法K-means、DBSCAN等算法,其参数选择困难、易影响聚类效果,针对在非凸数据集或密度不均匀、聚类间距差相差很大的数据集上聚类...移动轨迹数据的热点区域挖掘在城市交通管理、道路规划和基于位置的服务中具有重要的作用。传统数据挖掘方法K-means、DBSCAN等算法,其参数选择困难、易影响聚类效果,针对在非凸数据集或密度不均匀、聚类间距差相差很大的数据集上聚类表现较差等问题,提出了基于改进谱聚类的热点区域挖掘算法(hot region mining algorithm based on improved spectral clustering,ISCRM)。实验结果表明:对比传统方法,ISCRM算法优势在于自适应选取参数,避免人工调试参数环节,且其适用于任意形状的样本空间,聚类质量更高。可准确获得各个聚类中心,从而识别出用户出行热点区域。展开更多
Objective： To observe the clinical effects of tuina plus hot compress for nfantile diarrhea clue to spleen-kidney yang deficiency. Methods： One hundred cases were randomly divided into a treatment group and a contr...Objective： To observe the clinical effects of tuina plus hot compress for nfantile diarrhea clue to spleen-kidney yang deficiency. Methods： One hundred cases were randomly divided into a treatment group and a control group, 50 cases in each group. The treatment group was treated with tuina plus hot compress. The control group was treated with oral administration of Live Combined Bifidobacterium, Lactobacillus and Enterococcus powder （Bifico）. The clinical effects were observed after 5-day intervention. Results： The total effective rate was 94.0% in the treatment group and was 66.0% in the control group. The difference in the total effective rate between the two groups was statistically significant （P〈0.05）. The clinical effect was better in the treatment group than that in the control group. Conclusion： Tuina plus hot compress for infantile diarrhea due to spleen-kidney yang deficiency can produce a better clinical effect than oral administration of Bifico.展开更多
文摘In hot-humid climates,particularly in sub-Saharan Africa(SSA),ambient temperatures and relative humidity are as high as 35°C and 84%,respectively,requiring the use of mechanical cooling systems for indoor thermal comfort.Split-type vapor-compression air-conditioners(SVAC)are mainly used for space cooling in SSA and consume 60-80%of total energy consumption in commercial and public buildings.Appropriate control strategy of the indoor set-point temperature of SVAC can result in significant energy savings in these buildings.In this study,modeling and dynamic simulation have been conducted using EnergyPlus to predict the energy saving potential and indoor thermal comfort of buildings in hot-humid climates by controlling set-point temperature of the SVAC.In a case study,climatic data for Ghana,was used to predict the energy saving potential and indoor thermal comfort.The study results revealed that,to ensure indoor thermal comfort at high outdoor temperature condition of 35°C,the least and optimum set-point temperatures of the SVAC should be 21°C and 25°C,respectively.On the other hand,for low outdoor temperature condition,the least and optimum set-point temperatures were 22°C and 26°C,respectively.Considering 1-star and 2-star rated SVACs which are dominantly used in Ghana,operating at 21-25°C in the case of high outdoor conditions,and 22-26°C for low outdoor conditions relative to the least temperatures resulted in energy savings of 8-33%and 12-44%,respectively.
文摘移动轨迹数据的热点区域挖掘在城市交通管理、道路规划和基于位置的服务中具有重要的作用。传统数据挖掘方法K-means、DBSCAN等算法,其参数选择困难、易影响聚类效果,针对在非凸数据集或密度不均匀、聚类间距差相差很大的数据集上聚类表现较差等问题,提出了基于改进谱聚类的热点区域挖掘算法(hot region mining algorithm based on improved spectral clustering,ISCRM)。实验结果表明:对比传统方法,ISCRM算法优势在于自适应选取参数,避免人工调试参数环节,且其适用于任意形状的样本空间,聚类质量更高。可准确获得各个聚类中心,从而识别出用户出行热点区域。
基金supported by Nanjing Integrated Traditional Chinese and Western Medicine Hospital, Nanjing University of Chinese Medicine
文摘Objective： To observe the clinical effects of tuina plus hot compress for nfantile diarrhea clue to spleen-kidney yang deficiency. Methods： One hundred cases were randomly divided into a treatment group and a control group, 50 cases in each group. The treatment group was treated with tuina plus hot compress. The control group was treated with oral administration of Live Combined Bifidobacterium, Lactobacillus and Enterococcus powder （Bifico）. The clinical effects were observed after 5-day intervention. Results： The total effective rate was 94.0% in the treatment group and was 66.0% in the control group. The difference in the total effective rate between the two groups was statistically significant （P〈0.05）. The clinical effect was better in the treatment group than that in the control group. Conclusion： Tuina plus hot compress for infantile diarrhea due to spleen-kidney yang deficiency can produce a better clinical effect than oral administration of Bifico.
