为协助医护人员开展病区服务工作,提升患者临床康复体验,提出基于用户需求的产品服务系统设计方法。以病区场景下的物流机器人服务系统为研究对象,采用模糊Kano模型和熵权法确定用户需求类型及优先级;结合用户关键需求,进行产品外观与...为协助医护人员开展病区服务工作,提升患者临床康复体验,提出基于用户需求的产品服务系统设计方法。以病区场景下的物流机器人服务系统为研究对象,采用模糊Kano模型和熵权法确定用户需求类型及优先级;结合用户关键需求,进行产品外观与结构、人机交互模式及产品信息显示的设计改进,并采用逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)评估设计方案的可行性。研究结果表明:采用定量和定性相结合的设计方法有利于提升服务系统设计的客观性和准确性,为同类产品的服务系统设计提供参考。展开更多
Objective The northern Guangxi region is in the southwestern part of the Southern China continent,which is located at the junction of the southwest section of the Early Paleozoic Yangtze block and Cathaysian block.A s...Objective The northern Guangxi region is in the southwestern part of the Southern China continent,which is located at the junction of the southwest section of the Early Paleozoic Yangtze block and Cathaysian block.A series of NNE-trending ductile shear zones are developed in this region,and these ductile shear zones are mostly previously suggested boundary faults of the Early Paleozoic Yangtze block and Cathaysian block,such as the Shoucheng–Piaoli ductile shear zone in Northern Guangxi （Meng Yuanku et al., 2016; Zhang Xuefeng et al., 2015）.展开更多
It is unclear whether the South China blocks have an affinity with continental Gondwana due to a lack of direct Pan-African magmatic and metamorphic features.In this study,we conducted U-Pb geochronological and Lu-Hf ...It is unclear whether the South China blocks have an affinity with continental Gondwana due to a lack of direct Pan-African magmatic and metamorphic features.In this study,we conducted U-Pb geochronological and Lu-Hf isotopic analyses for detrital zircons from a sandstone of the Chang'an Formation of the Nanhua Group in the Longsheng region of northern Guangxi,with the aim of constraining the timing of sedimentation and information as to its source,as well as seeking evidence for Pan-African events in the South China blocks.The results show that the ages of detrital zircons peaked at 654.7±6.2 Ma,773.2±4.1 Ma and 821.9±6.5 Ma,with some at 920–870 Ma;the youngest age indicates the existence of the Pan-African thermal event.The ε_(Hf)(t)and T_(DM2) values demonstrate that the study area has experienced three stages of crustal growth at 3.0–2.4 Ga,2.1–1.5 Ga and 1.3–0.9 Ga.With intensively distributed Neoproterozoic mafic-ultramafic and granitic plutons emplaced at 830–810 Ma along the southwestern section of the Jiangnan Orogenic Belt and positiveεHf(t)values from a large group of zircon grains,it is proposed that the sediments of the Chang'an Formation(of Nanhua Group)were largely sourced from the southeastern margin of the Yangtze block.Comparison with the zircon age spectra of the Cathaysian block shows that about 79%of the Pan-African aged detrital zircon grains that have TDM2=1352–1031 Ma andεHf(t)=3.68–8.79,were sourced from the recycled Grenvillian crust of the Cathaysian block,suggesting that the Cathaysian block had a close connection with Gondwana.展开更多
幸福感的研究对提升个人健康和社会效益,实现健康中国的战略目标具有重要意义。文中对出行幸福感的显著影响因素及其层次结构进行分析,构建了出行幸福感评价指标体系,由此提出了相应的规划与政策建议。文中采用国际公认的研究幸福感的...幸福感的研究对提升个人健康和社会效益,实现健康中国的战略目标具有重要意义。文中对出行幸福感的显著影响因素及其层次结构进行分析,构建了出行幸福感评价指标体系,由此提出了相应的规划与政策建议。文中采用国际公认的研究幸福感的数据库ATUS(American Time Use Survey),首先建立最优尺度回归模型,筛选出显著影响出行幸福感的因素并得到各自的重要性系数;而后,以最优尺度回归输出结果为依据,结合因子分析法和层次分析法获得因素间的层次结构,得到每个指标的影响权重,从而构建了出行幸福感评价指标体系,定量地描述了不同因素对出行幸福感的影响程度;最后,基于出行幸福感影响因素的启示,给出提升出行幸福感的规划与政策建议。展开更多
文摘为协助医护人员开展病区服务工作,提升患者临床康复体验,提出基于用户需求的产品服务系统设计方法。以病区场景下的物流机器人服务系统为研究对象,采用模糊Kano模型和熵权法确定用户需求类型及优先级;结合用户关键需求,进行产品外观与结构、人机交互模式及产品信息显示的设计改进,并采用逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)评估设计方案的可行性。研究结果表明:采用定量和定性相结合的设计方法有利于提升服务系统设计的客观性和准确性,为同类产品的服务系统设计提供参考。
基金funded by the National Natural Science Foundation of China(grants No.41572191 and 41702211)the Natural Science Foundation of Guangxi(grant No.2017GXNSFBA198166)
文摘Objective The northern Guangxi region is in the southwestern part of the Southern China continent,which is located at the junction of the southwest section of the Early Paleozoic Yangtze block and Cathaysian block.A series of NNE-trending ductile shear zones are developed in this region,and these ductile shear zones are mostly previously suggested boundary faults of the Early Paleozoic Yangtze block and Cathaysian block,such as the Shoucheng–Piaoli ductile shear zone in Northern Guangxi （Meng Yuanku et al., 2016; Zhang Xuefeng et al., 2015）.
基金This project was funded by the Chinese National Natural Science Foundation(Grants#41572191 and 42072259)the Guangxi Natural Science Foundation(Grants 2017GXNSFBA198166,2018GXNSFAA281248,2018GXNSFFA281009 and 2019GXNSFDA245009).
文摘It is unclear whether the South China blocks have an affinity with continental Gondwana due to a lack of direct Pan-African magmatic and metamorphic features.In this study,we conducted U-Pb geochronological and Lu-Hf isotopic analyses for detrital zircons from a sandstone of the Chang'an Formation of the Nanhua Group in the Longsheng region of northern Guangxi,with the aim of constraining the timing of sedimentation and information as to its source,as well as seeking evidence for Pan-African events in the South China blocks.The results show that the ages of detrital zircons peaked at 654.7±6.2 Ma,773.2±4.1 Ma and 821.9±6.5 Ma,with some at 920–870 Ma;the youngest age indicates the existence of the Pan-African thermal event.The ε_(Hf)(t)and T_(DM2) values demonstrate that the study area has experienced three stages of crustal growth at 3.0–2.4 Ga,2.1–1.5 Ga and 1.3–0.9 Ga.With intensively distributed Neoproterozoic mafic-ultramafic and granitic plutons emplaced at 830–810 Ma along the southwestern section of the Jiangnan Orogenic Belt and positiveεHf(t)values from a large group of zircon grains,it is proposed that the sediments of the Chang'an Formation(of Nanhua Group)were largely sourced from the southeastern margin of the Yangtze block.Comparison with the zircon age spectra of the Cathaysian block shows that about 79%of the Pan-African aged detrital zircon grains that have TDM2=1352–1031 Ma andεHf(t)=3.68–8.79,were sourced from the recycled Grenvillian crust of the Cathaysian block,suggesting that the Cathaysian block had a close connection with Gondwana.
文摘幸福感的研究对提升个人健康和社会效益,实现健康中国的战略目标具有重要意义。文中对出行幸福感的显著影响因素及其层次结构进行分析,构建了出行幸福感评价指标体系,由此提出了相应的规划与政策建议。文中采用国际公认的研究幸福感的数据库ATUS(American Time Use Survey),首先建立最优尺度回归模型,筛选出显著影响出行幸福感的因素并得到各自的重要性系数;而后,以最优尺度回归输出结果为依据,结合因子分析法和层次分析法获得因素间的层次结构,得到每个指标的影响权重,从而构建了出行幸福感评价指标体系,定量地描述了不同因素对出行幸福感的影响程度;最后,基于出行幸福感影响因素的启示,给出提升出行幸福感的规划与政策建议。
