The promotion of energy efficiency(EE)helps address energy constraints and promote environmental sustainability.This study comprehensively explores the spatiotemporal variations,influencing factors,and configuration p...The promotion of energy efficiency(EE)helps address energy constraints and promote environmental sustainability.This study comprehensively explores the spatiotemporal variations,influencing factors,and configuration promotion paths of EE in 284 Chinese cities during 2003‒2019 using the global super-efficiency minimum distance to strong efficient frontier(G-S-MinDS),exploratory spatial data analysis(ESDA),multiscale geographically weighted regression(MGWR),and fuzzy set qualitative comparative analysis(fsQCA)methods.The findings are:①China’s cities have an annual average EE of 0.658 with a growth rate of 0.53%,showing considerable promotion potential.②Industrial structure optimization,population agglomeration,economic development,and increased green coverage contribute positively,while government intervention and openness hinder China’s urban EE.③Four configurational promotion paths for enhancing China’s urban EE are identified,where among those paths population density is a core condition,while government intervention is not.This study provides valuable insights into substantially improving urban EE,emphasizing the need for targeted policies to address energy and environmental crises in China.展开更多
Single-pixel imaging(SPI)through complex media remains challenging.In this paper,we report high-resolution common-path SPI with dual polarization using random-frequency-encoded time sequences in complex environments w...Single-pixel imaging(SPI)through complex media remains challenging.In this paper,we report high-resolution common-path SPI with dual polarization using random-frequency-encoded time sequences in complex environments where the illumination and detection paths are severely distorted.By leveraging a common-path optical configuration with orthogonal polarization states,a series of dynamic scaling factors can be corrected.The designed random-frequency encoding scheme disperses scattering-induced noise into artifacts to be simply removed.It is demonstrated in optical experiments that the proposed method is feasible and effective to reconstruct highresolution object images in complex environments.The proposed method does not require complex optical components and prior knowledge about scattering media,providing a robust solution for high-resolution optical imaging in complex scenarios where the illumination and detection paths are severely distorted at the same time.展开更多
基金the financial support provided by the National Natural Science Foundation of China[Grant No.72373138 and 71973131]Major Project of National Social Science Foundation of China[Grant No.19VHQ002].
文摘The promotion of energy efficiency(EE)helps address energy constraints and promote environmental sustainability.This study comprehensively explores the spatiotemporal variations,influencing factors,and configuration promotion paths of EE in 284 Chinese cities during 2003‒2019 using the global super-efficiency minimum distance to strong efficient frontier(G-S-MinDS),exploratory spatial data analysis(ESDA),multiscale geographically weighted regression(MGWR),and fuzzy set qualitative comparative analysis(fsQCA)methods.The findings are:①China’s cities have an annual average EE of 0.658 with a growth rate of 0.53%,showing considerable promotion potential.②Industrial structure optimization,population agglomeration,economic development,and increased green coverage contribute positively,while government intervention and openness hinder China’s urban EE.③Four configurational promotion paths for enhancing China’s urban EE are identified,where among those paths population density is a core condition,while government intervention is not.This study provides valuable insights into substantially improving urban EE,emphasizing the need for targeted policies to address energy and environmental crises in China.
基金National Natural Science Foundation of China(62405256)Hong Kong Research Grants Council General Research Fund(15224921,15223522,15237924)+2 种基金Hong Kong Research Grants Council Collaborative Research Fund(C5047-24G)Basic and Applied Basic Research Foundation of Guangdong Province(2023A1515010831,2025A1515011411)The Hong Kong Polytechnic University(1-CDJA,1-WZ4M).
文摘Single-pixel imaging(SPI)through complex media remains challenging.In this paper,we report high-resolution common-path SPI with dual polarization using random-frequency-encoded time sequences in complex environments where the illumination and detection paths are severely distorted.By leveraging a common-path optical configuration with orthogonal polarization states,a series of dynamic scaling factors can be corrected.The designed random-frequency encoding scheme disperses scattering-induced noise into artifacts to be simply removed.It is demonstrated in optical experiments that the proposed method is feasible and effective to reconstruct highresolution object images in complex environments.The proposed method does not require complex optical components and prior knowledge about scattering media,providing a robust solution for high-resolution optical imaging in complex scenarios where the illumination and detection paths are severely distorted at the same time.
