Introduction:This study protocol specifies the primary research line and theoretical framework of the 2023 Survey of the Psychology and Behavior of the Chinese Population.It aims to establish a consistent database of ...Introduction:This study protocol specifies the primary research line and theoretical framework of the 2023 Survey of the Psychology and Behavior of the Chinese Population.It aims to establish a consistent database of Chinese residents'psychological and behavioral surveys through multi-center and large-sample cross-sectional surveys to provide robust data support for developing research in related fields.It will track the public's physical and psychological health more comprehensively and systematically.Methods:The study was conducted from June 20,2023 to August 31,2023,using stratified and quota sampling methods.A total of 150 cities across 800 communities/villages were surveyed,selected from China(Despite extensive coordination,we have been unable to contact our counterparts in the Taiwan region of China to obtain relevant statistical data).The questionnaires were distributed to the public one-on-one and face-to-face by trained surveyors.The questionnaires included basic information about the individual,personal health status,basic information about the family,the social environment in which the individual lives,psychological condition scales,behavioral level scales,other scales,and attitudes towards topical social issues.Supervisors conducted quality control during the distribution process and returned questionnaires,logically checked and cleaned for data analysis.Discussion:Data collection has been finished,and scientific outputs based on this data will support the development of health promotion strategies in China and globally.In the aftermath of the pandemic,it will guide policymakers and healthcare organizations to improve their existing policies and services to maximize the physical and mental health of the Chinese population.Trial Registration:This study was filed in the National Health Security Information Platform(Record No.:MR-37-23-017876)and officially registered in the China Clinical Trials Registry(Registration No.:ChiCTR2300072573).展开更多
Inspired by the promising hydrogen production in the solar thermochemical(STC)cycle based on non-stoichiometric oxides and the operation temperature decreasing effect of methane reduction,a high-fuel-selectivity and C...Inspired by the promising hydrogen production in the solar thermochemical(STC)cycle based on non-stoichiometric oxides and the operation temperature decreasing effect of methane reduction,a high-fuel-selectivity and CH4-introduced solar thermochemical cycle based on MoO2/Mo is studied.By performing HSC simulations,the energy upgradation and energy conversion potential under isothermal and non-isothermal operating conditions are compared.In the reduction step,MoO2:CH4=2 and 1020 K<Tred<1600 K are found to be most favorable for syngas selectivity and methane conversion.Compared to the STC cycle without CH4,the introduction of methane yields a much higher hydrogen production,especially at the lower temperature range and atmospheric pressure.In the oxidation step,a moderately excessive water is beneficial for energy conversion whether in isothermal or non-isothermal operations,especially at H2O:Mo=4.In the whole STC cycle,the maximum non-isothermal and isothermal efficiency can reach 0.417 and 0.391 respectively.In addition,the predicted efficiency of the second cycle is also as high as 0.454 at Tred=1200 K and Toxi=400 K,indicating that MoO2 could be a new and potential candidate for obtaining solar fuel by methane reduction.展开更多
基金Research project of China Medical Education Association,Grant/Award Number:CMEA[2023]:No.0003。
文摘Introduction:This study protocol specifies the primary research line and theoretical framework of the 2023 Survey of the Psychology and Behavior of the Chinese Population.It aims to establish a consistent database of Chinese residents'psychological and behavioral surveys through multi-center and large-sample cross-sectional surveys to provide robust data support for developing research in related fields.It will track the public's physical and psychological health more comprehensively and systematically.Methods:The study was conducted from June 20,2023 to August 31,2023,using stratified and quota sampling methods.A total of 150 cities across 800 communities/villages were surveyed,selected from China(Despite extensive coordination,we have been unable to contact our counterparts in the Taiwan region of China to obtain relevant statistical data).The questionnaires were distributed to the public one-on-one and face-to-face by trained surveyors.The questionnaires included basic information about the individual,personal health status,basic information about the family,the social environment in which the individual lives,psychological condition scales,behavioral level scales,other scales,and attitudes towards topical social issues.Supervisors conducted quality control during the distribution process and returned questionnaires,logically checked and cleaned for data analysis.Discussion:Data collection has been finished,and scientific outputs based on this data will support the development of health promotion strategies in China and globally.In the aftermath of the pandemic,it will guide policymakers and healthcare organizations to improve their existing policies and services to maximize the physical and mental health of the Chinese population.Trial Registration:This study was filed in the National Health Security Information Platform(Record No.:MR-37-23-017876)and officially registered in the China Clinical Trials Registry(Registration No.:ChiCTR2300072573).
基金supported by the Innovation Practice Training Program of College Students,Chinese Academy of Sciences(Application No.20184000028)the Practical Training Program of Beijing University of Higher Education High-level Talents Cross-cultivation(No.16053225)the National Natural Science Foundation of China(Grant Nos.51476163,51806209 and 81801768).
文摘Inspired by the promising hydrogen production in the solar thermochemical(STC)cycle based on non-stoichiometric oxides and the operation temperature decreasing effect of methane reduction,a high-fuel-selectivity and CH4-introduced solar thermochemical cycle based on MoO2/Mo is studied.By performing HSC simulations,the energy upgradation and energy conversion potential under isothermal and non-isothermal operating conditions are compared.In the reduction step,MoO2:CH4=2 and 1020 K<Tred<1600 K are found to be most favorable for syngas selectivity and methane conversion.Compared to the STC cycle without CH4,the introduction of methane yields a much higher hydrogen production,especially at the lower temperature range and atmospheric pressure.In the oxidation step,a moderately excessive water is beneficial for energy conversion whether in isothermal or non-isothermal operations,especially at H2O:Mo=4.In the whole STC cycle,the maximum non-isothermal and isothermal efficiency can reach 0.417 and 0.391 respectively.In addition,the predicted efficiency of the second cycle is also as high as 0.454 at Tred=1200 K and Toxi=400 K,indicating that MoO2 could be a new and potential candidate for obtaining solar fuel by methane reduction.
