China has paid considerable attention to developing and implementing a carbon labeling system in response to increasing environmental issues such as global warming.This paper aims to provide a theoretical basis for fo...China has paid considerable attention to developing and implementing a carbon labeling system in response to increasing environmental issues such as global warming.This paper aims to provide a theoretical basis for formulating and implementing a carbon labeling system in China through a study of consumer acceptance behavior and its influencing factors.This paper constructed an extended model of consumers’acceptance behavior of carbon neutral labels based on the theories and methods of Unified Theory of Acceptance and Use of Technology(UTAUT)and analyzed the effects of five factors(carbon label cognition,performance expectancy,effort expectancy,social influence,and facilitating factors)on consumer carbon neutral label acceptance and adoption.The structural equation model analysis revealed that carbon label cognition,performance expectancy,social influence,and facilitating factors significantly,and positively impact consumers’acceptance of carbon neutral labels.Moreover,carbon label cognition,performance expectancy,and facilitating factors significantly,and positively affect consumers’carbon neutral label adoption behavior.Meanwhile,carbon label cognition,and effort expectancy have no significant impact on consumers’willingness to accept carbon neutral labels,which in turn significantly impacts consumers’carbon neutral label adoption behavior.According to the research findings,increasing the promotion of carbon labeling and improving the practical strategies and management recommendations for carbon label design are proposed.展开更多
The complete fusion reaction of^(55)Mn+^(159)Tb was studied on the gafilled recoil separator SHANS2.Nineteen ER-α1-α2 decay chains from^(210)Th produced from the 4n evaporation channel were observed.The a-particle e...The complete fusion reaction of^(55)Mn+^(159)Tb was studied on the gafilled recoil separator SHANS2.Nineteen ER-α1-α2 decay chains from^(210)Th produced from the 4n evaporation channel were observed.The a-particle energy and half-life of 210Th were determined as 7922(14)keV and 14(4)ms,respectively.In addition,the decay properties of Eα=7788(14)keV and T_(1/2)=36+15-8 ms were obtained for 21Th.The measured a decay prop-erties of^(210)Th and^(211)Th were consistent with literature data.The cross sections were measured to be 0.59+035 nb and 0.19-012 nb for^(210)Th and^(211)Th,respectively.The equilibrium charge state of the recoiled nucleus^(210)Th was determined experimentally.The new data were helpful for estimating the equilibrium charge states of elements 119 and 120,which could be produced via the^(240)Pu(^(55)Mn,3n)^(292)119 and^(243)Am(^(55)Mn,3m)^(295)120 reactions,respect-ively.展开更多
Tumor cells usually show abnormally high glycolysis rate to maintain the dynamic balance of energy.The growth of tumor cells can be affected by inhibiting the activity of pyruvate kinase(especially M2-type isozyme,PKM...Tumor cells usually show abnormally high glycolysis rate to maintain the dynamic balance of energy.The growth of tumor cells can be affected by inhibiting the activity of pyruvate kinase(especially M2-type isozyme,PKM2),the rate limiting enzyme of glycolysis.This is helpful to the treatment of tumor.Herein,metal organic frameworks(MOFs) were found to inhibit the activity of PKM2.Nanoscale ZIF-8 was synthesized by standing and ultrasonic method,respectively.The ZIF-8 has the performance of inhibiting PKM2.Further research showed that the inhibition ability was attributed to zinc ion in ZIF-8.Interestingly,the IC_(50) of ZIF-8 on PKM2 was one percent of that of zinc ion.This novel enzyme inhibitor is expected to be used in cancer therapy.展开更多
In this paper,w e provide a novel scheme to solve the motion planning problem of multi-agent systems under high-level task specifications.First,linear temporal logic is applied to express the global task specification...In this paper,w e provide a novel scheme to solve the motion planning problem of multi-agent systems under high-level task specifications.First,linear temporal logic is applied to express the global task specification.Then an efficient and decentralized algorithm is proposed to decom pose it into local tasks.M oreover,w e use control barrier function to synthesize the local controller for each agent under the linear temporal logic motion plan with safety constraint.Finally,simulation results show the effectiveness and efficiency of our proposed scheme.展开更多
基金supported by the National Social Science Foundation of China[Grant number.17BXW104]the Innorative School Project in Higher Education of Guangdong,China[Grant number.2016WZDXM025].
文摘China has paid considerable attention to developing and implementing a carbon labeling system in response to increasing environmental issues such as global warming.This paper aims to provide a theoretical basis for formulating and implementing a carbon labeling system in China through a study of consumer acceptance behavior and its influencing factors.This paper constructed an extended model of consumers’acceptance behavior of carbon neutral labels based on the theories and methods of Unified Theory of Acceptance and Use of Technology(UTAUT)and analyzed the effects of five factors(carbon label cognition,performance expectancy,effort expectancy,social influence,and facilitating factors)on consumer carbon neutral label acceptance and adoption.The structural equation model analysis revealed that carbon label cognition,performance expectancy,social influence,and facilitating factors significantly,and positively impact consumers’acceptance of carbon neutral labels.Moreover,carbon label cognition,performance expectancy,and facilitating factors significantly,and positively affect consumers’carbon neutral label adoption behavior.Meanwhile,carbon label cognition,and effort expectancy have no significant impact on consumers’willingness to accept carbon neutral labels,which in turn significantly impacts consumers’carbon neutral label adoption behavior.According to the research findings,increasing the promotion of carbon labeling and improving the practical strategies and management recommendations for carbon label design are proposed.
基金Supported by the Strategic Priority Research Program of Chinese Academy of Sciences (XDB34010000)the Guangdong Major Project of Basic and Applied Basic Research (2021B0301030006)+5 种基金the National Key R&D Program of China (2018YFA0404402)the CAS Project for Young Scientists in Basic Research (YSBR-002)the Youth Innovation Promotion Association CAS (2020409)the National Natural Science Foundation of China (11975279,11965003,12105328)the Special Research Assistant Project of the Chinese Academy of Sciencesthe Central Government Guidance Funds for Local Scientific and Technological Development,China (Guike ZY22096024)
文摘The complete fusion reaction of^(55)Mn+^(159)Tb was studied on the gafilled recoil separator SHANS2.Nineteen ER-α1-α2 decay chains from^(210)Th produced from the 4n evaporation channel were observed.The a-particle energy and half-life of 210Th were determined as 7922(14)keV and 14(4)ms,respectively.In addition,the decay properties of Eα=7788(14)keV and T_(1/2)=36+15-8 ms were obtained for 21Th.The measured a decay prop-erties of^(210)Th and^(211)Th were consistent with literature data.The cross sections were measured to be 0.59+035 nb and 0.19-012 nb for^(210)Th and^(211)Th,respectively.The equilibrium charge state of the recoiled nucleus^(210)Th was determined experimentally.The new data were helpful for estimating the equilibrium charge states of elements 119 and 120,which could be produced via the^(240)Pu(^(55)Mn,3n)^(292)119 and^(243)Am(^(55)Mn,3m)^(295)120 reactions,respect-ively.
基金financial support from the National Natural Science Foundation of China (Nos.61975214, U20A20335,81630053)Beijing Natural Science Foundation (Nos.4202075, 2202057, 7212208)。
文摘Tumor cells usually show abnormally high glycolysis rate to maintain the dynamic balance of energy.The growth of tumor cells can be affected by inhibiting the activity of pyruvate kinase(especially M2-type isozyme,PKM2),the rate limiting enzyme of glycolysis.This is helpful to the treatment of tumor.Herein,metal organic frameworks(MOFs) were found to inhibit the activity of PKM2.Nanoscale ZIF-8 was synthesized by standing and ultrasonic method,respectively.The ZIF-8 has the performance of inhibiting PKM2.Further research showed that the inhibition ability was attributed to zinc ion in ZIF-8.Interestingly,the IC_(50) of ZIF-8 on PKM2 was one percent of that of zinc ion.This novel enzyme inhibitor is expected to be used in cancer therapy.
基金This work was partially supported by the National Natural Science Foundation of China(No.51475334)the National Key Research and Development Program of Science and Technology of China(No.2018YFB1305304)the Shanghai Science and Technology Pilot Project(No.19511132100).
文摘In this paper,w e provide a novel scheme to solve the motion planning problem of multi-agent systems under high-level task specifications.First,linear temporal logic is applied to express the global task specification.Then an efficient and decentralized algorithm is proposed to decom pose it into local tasks.M oreover,w e use control barrier function to synthesize the local controller for each agent under the linear temporal logic motion plan with safety constraint.Finally,simulation results show the effectiveness and efficiency of our proposed scheme.
