With the wide application of antibiotics in medicine and industry fields as well as the improvement of water quality detection technology,more and more reports show that antibiotics and antibiotic resistance genes(AGR...With the wide application of antibiotics in medicine and industry fields as well as the improvement of water quality detection technology,more and more reports show that antibiotics and antibiotic resistance genes(AGRs)were detected in various drinking water sources.The existence of these pollutants in water environment posed a great threat to human health.In this paper,the pollution status of antibiotics and transmission routes of antibiotic genes were introduced,and the characteristics and shortcomings of antibiotic treatment technology both at home and abroad were analyzed.Finally,suggestions and prospects for future antibiotic treatment technology were put forward.展开更多
Metamaterial absorber/emitter is an important aspect of infrared radiation manipulation.In this paper,we proposed four simple switchable infrared metamaterial absorbers/emitters with Ag/VO_(2)disks on the Ag plane emp...Metamaterial absorber/emitter is an important aspect of infrared radiation manipulation.In this paper,we proposed four simple switchable infrared metamaterial absorbers/emitters with Ag/VO_(2)disks on the Ag plane employing triangle,square,hexagon,and circle unit cells.The spectral absorption peaks whose intensities are above 0.99 occur at~4μm after structure optimization when VO_(2)is in insulating state and disappear when VO_(2)becomes metallic state.The simulated electromagnetic field reveals that the spectral absorption peaks are attributed to the excitation of magnetic polariton within the insulating VO_(2)spacer layer,whose values exceed 1.59 orders of magnitude higher than the incident magnetic field.Longer resonant wavelength would be excited in square arrays because its configuration is a better carrier of charges at the same spans.For absorption stability,the absorbers/emitters with square and circular structures do not have any change with the polarization angles changing from 0°to 90°,due to the high rotational symmetric structure.And four absorbers/emitters reveal similar shifts and attenuations under different incident angles.We believed that the switchable absorber/emitter demonstrates promising applications in the sensing technology and adaptive infrared system.展开更多
文摘With the wide application of antibiotics in medicine and industry fields as well as the improvement of water quality detection technology,more and more reports show that antibiotics and antibiotic resistance genes(AGRs)were detected in various drinking water sources.The existence of these pollutants in water environment posed a great threat to human health.In this paper,the pollution status of antibiotics and transmission routes of antibiotic genes were introduced,and the characteristics and shortcomings of antibiotic treatment technology both at home and abroad were analyzed.Finally,suggestions and prospects for future antibiotic treatment technology were put forward.
基金the National Natural Science Foundation of China(51902073)National Key Research&Development Program(2016YFB0303903,2016YFE0201600)+3 种基金Foundation of Equip-ment Development Department(6140922010901)China Postdoctoral Science Foundation Funded Project(2019M661273,2020T130142)Heilongjiang Province Post-doctoral Science Foundation(LBH-Z19159)the Funda-mental Research Funds for the Central Universities(HIT.NSRIF.2020019).
文摘Metamaterial absorber/emitter is an important aspect of infrared radiation manipulation.In this paper,we proposed four simple switchable infrared metamaterial absorbers/emitters with Ag/VO_(2)disks on the Ag plane employing triangle,square,hexagon,and circle unit cells.The spectral absorption peaks whose intensities are above 0.99 occur at~4μm after structure optimization when VO_(2)is in insulating state and disappear when VO_(2)becomes metallic state.The simulated electromagnetic field reveals that the spectral absorption peaks are attributed to the excitation of magnetic polariton within the insulating VO_(2)spacer layer,whose values exceed 1.59 orders of magnitude higher than the incident magnetic field.Longer resonant wavelength would be excited in square arrays because its configuration is a better carrier of charges at the same spans.For absorption stability,the absorbers/emitters with square and circular structures do not have any change with the polarization angles changing from 0°to 90°,due to the high rotational symmetric structure.And four absorbers/emitters reveal similar shifts and attenuations under different incident angles.We believed that the switchable absorber/emitter demonstrates promising applications in the sensing technology and adaptive infrared system.
