A novel micro-hole electrode was fabricated to investigate the electron transfer reaction at the interface between two immiscible electrolyte solutions (ITIES). The electron transfer reaction between ferro/ferricyani...A novel micro-hole electrode was fabricated to investigate the electron transfer reaction at the interface between two immiscible electrolyte solutions (ITIES). The electron transfer reaction between ferro/ferricyanide in aqueous phase (W) and ferrocene in 1, 2-dichloroethane (O) phase was studied as a test experiment. The results showed that the diffusion coefficient obtained from the micro-hole electrode was consistent with that obtained at macro-interface. Due to its simplicity and the very small IR drop it will be a useful tool for the study of ITIES systems.展开更多
For the first time,fullerenes are applied to the study on the interface between two immisible electrolyte solutions.Experiments show they are a new kind of inhibitors. Obvious inhibitive behavior to the TMA^+ transfer...For the first time,fullerenes are applied to the study on the interface between two immisible electrolyte solutions.Experiments show they are a new kind of inhibitors. Obvious inhibitive behavior to the TMA^+ transfer across the water/nitrobenzene interface is observed.展开更多
Big Cities and capitals are becoming overcrowded and hard to get future development prospect. New self-sustaining cities are becoming a smart substitutional solution to those old cities. Information and Communication ...Big Cities and capitals are becoming overcrowded and hard to get future development prospect. New self-sustaining cities are becoming a smart substitutional solution to those old cities. Information and Communication Technology (ICT) and information technology infrastructure (ITI) are at the core of these new self-sustaining cities enabling highly integrated services and real-time city monitoring by a network of sensors, wireless devices, cameras, and unified portals connected to massive data centers. All that for creating sustainable economic development and high quality of life by empowering various keys like energy, economy, efficiency, environment, mobility, communication, governance, transportation, people and leverage the quality of life. The Geographic information system (GIS) playing a big role in the smart city architecture and Royal commission in industrial yanbu city (RCY) build their smart city based on Enterprise GIS and open access network (OAN). “Geospatial technologies, such as modern geographic information systems (GIS) and data capturing technologies, are at the heart of the smart city, because understanding the ‘WHERE’ component is critical for making an informed decision. Geospatial technologies largely meet these communication needs, while emphasizing the geographical aspect, which plays a fundamental role in optimizing the understanding and management of the urban space”. [1].展开更多
Estimation of the capacity of provincial forest carbon sinks in Chinese mainland using the CO2FIX model provides data support for the effective management of provincial regions. According to China’s Sixth National Fo...Estimation of the capacity of provincial forest carbon sinks in Chinese mainland using the CO2FIX model provides data support for the effective management of provincial regions. According to China’s Sixth National Forest Inventory, we estimate the capacities of original and new afforestation carbon sinks under the assumption of using the country’s non-forest land for afforestation and reforestation to achieve a new forested area of 57323200 ha. The carbon absorption capacity of China’s forest ecosystems estimated from 2005 to 2050 reaches 8.4 GtC. The absorption capacities of original forest and new afforestation respectively are 4.9 and 3.5 GtC. The annual capacity of all forest carbon sinks has a roughly decreasing trend. Inner Mongolia Autonomous Region, Yunnan, Sichuan and Heilongjiang provinces make major contributions to the carbon sink capacity.展开更多
1.Introduction.Ni-Mn-X(X=Ga,In,Sn,or Sb)Heusler alloys have versatile properties[1-4],such as shape memory effect[1],superelastic-ity[5],magnetocaloric effect[3],elastocaloric effect[6],and even multicaloric effect[7]...1.Introduction.Ni-Mn-X(X=Ga,In,Sn,or Sb)Heusler alloys have versatile properties[1-4],such as shape memory effect[1],superelastic-ity[5],magnetocaloric effect[3],elastocaloric effect[6],and even multicaloric effect[7],that indicate their potential for use in actu-ators,sensors,micropumps,energy harvesters,and solid-state re-frigeration[8-10].Among the alloys,Ni-Mn-Sn-based alloys are environment-friendly and cost-effective[6,7,11],and hence,they have received widespread attention.展开更多
The present paper reports the results of a detailed experimental study aimed at investigating the dynamics of a laminar separation bubble, from the origin of separation up to the breakdown to turbulence of the large s...The present paper reports the results of a detailed experimental study aimed at investigating the dynamics of a laminar separation bubble, from the origin of separation up to the breakdown to turbulence of the large scale co- herent structures generated as a consequence of the Kelvin-Helmholtz instability process. Measurements have been performed along a fiat plate installed within a double contoured test section, designed to produce an adverse pressure gradient typical of Ultra-High-Lift turbine blade profiles, which induces the formation of a laminar separation bubble at low Reynolds number condition. Measurements have been carried out by means of comple- mentary techniques： hot-wire （HW） anemometry, Laser Doppler Velocirnetry （LDV） and Particle Image Veloci- metry （PIV）. The high accuracy 2-dimensional LDV results allow investigating reverse flow magnitude and both Reynolds normal and shear stress distributions along the separated flow region, while the high frequency response of the HW anemometer allows analyzing the amplification process of flow oscillations induced by instability mechanisms. PIV results complement the flow field analysis providing information on the generation and evolu- tion of the large scale coherent structures shed as a consequence of the separated shear layer roll-up, through in- stantaneous velocity vector maps. The simultaneous analysis of the data obtained by means of the different meas- uring techniques allows an in depth view of the instability mechanisms involved in the transition/reattachrnent processes of the separated shear layer.展开更多
Chinese President Xi Jinping paid state visits to three South Pacific countries--- Australia, New Zealand and Fiji--from November 16 to 23. During his trip. China and Australia not only concluded bilateral free trade ...Chinese President Xi Jinping paid state visits to three South Pacific countries--- Australia, New Zealand and Fiji--from November 16 to 23. During his trip. China and Australia not only concluded bilateral free trade agreement （FTA） talks but also decided to elevate their relationship to a comprehensive strategic partnership. By further deepening mutual trust, Xi＇s first visit to New Zealand and Fiji as Chinese president also heightened bilateral relations.展开更多
文摘A novel micro-hole electrode was fabricated to investigate the electron transfer reaction at the interface between two immiscible electrolyte solutions (ITIES). The electron transfer reaction between ferro/ferricyanide in aqueous phase (W) and ferrocene in 1, 2-dichloroethane (O) phase was studied as a test experiment. The results showed that the diffusion coefficient obtained from the micro-hole electrode was consistent with that obtained at macro-interface. Due to its simplicity and the very small IR drop it will be a useful tool for the study of ITIES systems.
文摘For the first time,fullerenes are applied to the study on the interface between two immisible electrolyte solutions.Experiments show they are a new kind of inhibitors. Obvious inhibitive behavior to the TMA^+ transfer across the water/nitrobenzene interface is observed.
文摘Big Cities and capitals are becoming overcrowded and hard to get future development prospect. New self-sustaining cities are becoming a smart substitutional solution to those old cities. Information and Communication Technology (ICT) and information technology infrastructure (ITI) are at the core of these new self-sustaining cities enabling highly integrated services and real-time city monitoring by a network of sensors, wireless devices, cameras, and unified portals connected to massive data centers. All that for creating sustainable economic development and high quality of life by empowering various keys like energy, economy, efficiency, environment, mobility, communication, governance, transportation, people and leverage the quality of life. The Geographic information system (GIS) playing a big role in the smart city architecture and Royal commission in industrial yanbu city (RCY) build their smart city based on Enterprise GIS and open access network (OAN). “Geospatial technologies, such as modern geographic information systems (GIS) and data capturing technologies, are at the heart of the smart city, because understanding the ‘WHERE’ component is critical for making an informed decision. Geospatial technologies largely meet these communication needs, while emphasizing the geographical aspect, which plays a fundamental role in optimizing the understanding and management of the urban space”. [1].
基金supported by the National Natural Science Foundation of China (40771076)the Knowledge Innovation Program of the Chinese Academy of Sciences (KZCX2-YW-325-7)
文摘Estimation of the capacity of provincial forest carbon sinks in Chinese mainland using the CO2FIX model provides data support for the effective management of provincial regions. According to China’s Sixth National Forest Inventory, we estimate the capacities of original and new afforestation carbon sinks under the assumption of using the country’s non-forest land for afforestation and reforestation to achieve a new forested area of 57323200 ha. The carbon absorption capacity of China’s forest ecosystems estimated from 2005 to 2050 reaches 8.4 GtC. The absorption capacities of original forest and new afforestation respectively are 4.9 and 3.5 GtC. The annual capacity of all forest carbon sinks has a roughly decreasing trend. Inner Mongolia Autonomous Region, Yunnan, Sichuan and Heilongjiang provinces make major contributions to the carbon sink capacity.
基金supported by the National Key R&D Pro-gram of China(No.2022YFB3805701)National Natural Science Foundation of China(NSFC)(No.52371182,51701052,52192592,52192593)+1 种基金Young Elite Scientists Sponsorship Program by CAST(No.2019QNRC001)the Heilongjiang Touyan Innovation Team Program.
文摘1.Introduction.Ni-Mn-X(X=Ga,In,Sn,or Sb)Heusler alloys have versatile properties[1-4],such as shape memory effect[1],superelastic-ity[5],magnetocaloric effect[3],elastocaloric effect[6],and even multicaloric effect[7],that indicate their potential for use in actu-ators,sensors,micropumps,energy harvesters,and solid-state re-frigeration[8-10].Among the alloys,Ni-Mn-Sn-based alloys are environment-friendly and cost-effective[6,7,11],and hence,they have received widespread attention.
文摘The present paper reports the results of a detailed experimental study aimed at investigating the dynamics of a laminar separation bubble, from the origin of separation up to the breakdown to turbulence of the large scale co- herent structures generated as a consequence of the Kelvin-Helmholtz instability process. Measurements have been performed along a fiat plate installed within a double contoured test section, designed to produce an adverse pressure gradient typical of Ultra-High-Lift turbine blade profiles, which induces the formation of a laminar separation bubble at low Reynolds number condition. Measurements have been carried out by means of comple- mentary techniques： hot-wire （HW） anemometry, Laser Doppler Velocirnetry （LDV） and Particle Image Veloci- metry （PIV）. The high accuracy 2-dimensional LDV results allow investigating reverse flow magnitude and both Reynolds normal and shear stress distributions along the separated flow region, while the high frequency response of the HW anemometer allows analyzing the amplification process of flow oscillations induced by instability mechanisms. PIV results complement the flow field analysis providing information on the generation and evolu- tion of the large scale coherent structures shed as a consequence of the separated shear layer roll-up, through in- stantaneous velocity vector maps. The simultaneous analysis of the data obtained by means of the different meas- uring techniques allows an in depth view of the instability mechanisms involved in the transition/reattachrnent processes of the separated shear layer.
文摘Chinese President Xi Jinping paid state visits to three South Pacific countries--- Australia, New Zealand and Fiji--from November 16 to 23. During his trip. China and Australia not only concluded bilateral free trade agreement （FTA） talks but also decided to elevate their relationship to a comprehensive strategic partnership. By further deepening mutual trust, Xi＇s first visit to New Zealand and Fiji as Chinese president also heightened bilateral relations.
