Landscape heterogeneity is an important factor affecting biological population distribution and biodiversity.In urban park design,heterogeneous spaces are also an important way to create personalized and diversified s...Landscape heterogeneity is an important factor affecting biological population distribution and biodiversity.In urban park design,heterogeneous spaces are also an important way to create personalized and diversified spatial experience.Although there are ever-changing forms of heterogeneous spaces in the natural landscape,as ordinary tourists and viewers,they can be intoxicated with the plot representation of nature.As backstage directors,designers should think about the structural logic and functional significance of heterogeneous spaces,and summarize their interpretation and idioms to serve specific design purposes.Based on the complexity and diversity of urban parks’ heterogeneous space patterns,we arranged their structural logic from the topological relationship of space,restored the constituent materials of urban parks to four matrix elements:forest belts,lawns,water bodies and hard ground,deduced the constituent logic of heterogeneous spaces by using schema language,and analyzed the humanized function of these heterogeneous space schemas and checked the possibility of its application in design practice.展开更多
Urban geopark is the backyard garden of urban residents’life.Geological landscape popular science exhibition enables people to receive geological popular science knowledge easily and happily while playing,which will ...Urban geopark is the backyard garden of urban residents’life.Geological landscape popular science exhibition enables people to receive geological popular science knowledge easily and happily while playing,which will virtually strengthen people’s protection awareness of urban geological landscape.Urban geopark landscape is featured by unique typical geological characteristics.It is a realistic problem that troubles the planning and design of geological landscape popular science exhibition in urban geopark by effectively protecting these geological landscapes and upgrading them into urban popular science leisure tourism resources.Taking Zhengzhou Yellow River National Geopark as an example,this paper systematically studies the planning and design of geological landscape popular science exhibition in urban geopark.展开更多
Developing efficient catalysts toward both oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)is the core task for rechargeable metal-air batteries.Although integration of two active components should be ...Developing efficient catalysts toward both oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)is the core task for rechargeable metal-air batteries.Although integration of two active components should be an effective method to produce the bifunctional catalysts in principle,traditional techniques still can not attain fine tunable surface structure during material-hybridization process.Herein,we present a facile short-time in-situ argon(Ar)plasma strategy to fabricate a high-performance bifunctional hybrid catalyst of vacancy-rich CoFe2O4 synergized with defective graphence(r-CoFe2O4@DG).Reflected by the low voltage gap of 0.79V in two half-reaction measurements,the striking capability to catalyze ORR/OER endows it excellent and durable performance in rechargeable Zn-air batteries,with a maximum power density of 155.2mW/cm^2 and robust stablility(up to 60h).Further experimental and theoretical studies validate its remarkable bifunctional energetics root from plasma-induced surface vacancy defects and interfacial charge polarization between DG and CoFe2O4.展开更多
文摘Landscape heterogeneity is an important factor affecting biological population distribution and biodiversity.In urban park design,heterogeneous spaces are also an important way to create personalized and diversified spatial experience.Although there are ever-changing forms of heterogeneous spaces in the natural landscape,as ordinary tourists and viewers,they can be intoxicated with the plot representation of nature.As backstage directors,designers should think about the structural logic and functional significance of heterogeneous spaces,and summarize their interpretation and idioms to serve specific design purposes.Based on the complexity and diversity of urban parks’ heterogeneous space patterns,we arranged their structural logic from the topological relationship of space,restored the constituent materials of urban parks to four matrix elements:forest belts,lawns,water bodies and hard ground,deduced the constituent logic of heterogeneous spaces by using schema language,and analyzed the humanized function of these heterogeneous space schemas and checked the possibility of its application in design practice.
基金Sponsored by Special Cultural Research Project of Xing Culture Engineering of Henan Province(2022XWH132).
文摘Urban geopark is the backyard garden of urban residents’life.Geological landscape popular science exhibition enables people to receive geological popular science knowledge easily and happily while playing,which will virtually strengthen people’s protection awareness of urban geological landscape.Urban geopark landscape is featured by unique typical geological characteristics.It is a realistic problem that troubles the planning and design of geological landscape popular science exhibition in urban geopark by effectively protecting these geological landscapes and upgrading them into urban popular science leisure tourism resources.Taking Zhengzhou Yellow River National Geopark as an example,this paper systematically studies the planning and design of geological landscape popular science exhibition in urban geopark.
基金the Project of the Australia Research Council(No.ARC DP200103043)the"111"Project of China(Nos.B07016,B17020)the ARC Discovery Early Career Researcher Award(No.ARC DE180101030)。
文摘Developing efficient catalysts toward both oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)is the core task for rechargeable metal-air batteries.Although integration of two active components should be an effective method to produce the bifunctional catalysts in principle,traditional techniques still can not attain fine tunable surface structure during material-hybridization process.Herein,we present a facile short-time in-situ argon(Ar)plasma strategy to fabricate a high-performance bifunctional hybrid catalyst of vacancy-rich CoFe2O4 synergized with defective graphence(r-CoFe2O4@DG).Reflected by the low voltage gap of 0.79V in two half-reaction measurements,the striking capability to catalyze ORR/OER endows it excellent and durable performance in rechargeable Zn-air batteries,with a maximum power density of 155.2mW/cm^2 and robust stablility(up to 60h).Further experimental and theoretical studies validate its remarkable bifunctional energetics root from plasma-induced surface vacancy defects and interfacial charge polarization between DG and CoFe2O4.
