Light-emitting diodes(LEDs)are key for the development of next-generation displays for ultra-high-definition television.Alternative materials beyond organic LEDs are required to meet the color purity standards,while r...Light-emitting diodes(LEDs)are key for the development of next-generation displays for ultra-high-definition television.Alternative materials beyond organic LEDs are required to meet the color purity standards,while retaining low processing cost and environmental friendliness.Liang and colleagues report in Advanced Science that two-dimensional(2D)tin halide perovskite—efficiently stabilized by H3PO2 incorporation—has great promise for ultra-pure red LEDs.展开更多
The Sixth Beijing Forum on Human Rights is opened today, which is co-spon- sored by the China Society for Human Rights Studies and the China Foundation for Human Rights Development. First, on behalf of the China Found...The Sixth Beijing Forum on Human Rights is opened today, which is co-spon- sored by the China Society for Human Rights Studies and the China Foundation for Human Rights Development. First, on behalf of the China Foundation for Human Rights Development, I would like to express warm congratulations to the opening of the Forum, and heartfelt thanks tothe friends who have always cared for and supported for the development and progress of human rights cause of China.展开更多
THE Second Session of the 12th National People＇s Congress （NPC） passed the Report on the Work of the Government by Premier Li Keqiang on March 13. The report, delivered on March 5, the opening day of this year＇s a...THE Second Session of the 12th National People＇s Congress （NPC） passed the Report on the Work of the Government by Premier Li Keqiang on March 13. The report, delivered on March 5, the opening day of this year＇s annual NPC session, mentions the word ＂reform＂ 77 times and the measures proposed by the report encompass the sectors of the economy, politics, people＇s well-being, rule of law and ecological progress.展开更多
It is known that p-type GeTe-based materials show excellent thermoelectric performance due to the favorable electronic band structure.However,n-type doping in GeTe is of challenge owing to the native Ge vacancies and ...It is known that p-type GeTe-based materials show excellent thermoelectric performance due to the favorable electronic band structure.However,n-type doping in GeTe is of challenge owing to the native Ge vacancies and high hole concentration of about 10^(21)cm^(-3).In the present work,the formation energy of cation vacancies of GeTe is increased through alloying PbSe,and further Bi-doping enables the change of carrier conduction from p-type to n-type.As a result,the n-type thermoelectric performance is obtained in GeTe-based materials.A peak zT of 0.34 at 525 K is obtained for(Ge_(0.6)Pb_(0.4))_(0.88)Bi_(0.12)Te_(0.6)Se_(0.4).These results highlight the realization of n-type doping in GeTe and pave the way for further optimization of the thermoelectric performance of n-type GeTe.展开更多
Red revolutionary site is a significant carrier for inheriting and spreading red culture,a witness of revolutionary history and stones,and also the best place to show connotations and value of red culture.Taking the r...Red revolutionary site is a significant carrier for inheriting and spreading red culture,a witness of revolutionary history and stones,and also the best place to show connotations and value of red culture.Taking the regiment headquarter and the division headquarter of the First Division of the First Army in Xiushui County,Jiangxi Province for example,this paper explored cultural value of red site,analyzed the existing problems,tried to figure out scientific approaches of realizing cultural value of red site,so as to promote the sharing and inheritance of cultural value of red revolutionary site.展开更多
The article uses a case study approach to investigate the mechanisms of ecological product value realization,and influencing factors.Specifically,we use a case analysis framework based on the“economy-societynatural e...The article uses a case study approach to investigate the mechanisms of ecological product value realization,and influencing factors.Specifically,we use a case analysis framework based on the“economy-societynatural ecology”perspective to analyze and compare the three batches of“Typical Cases of Ecological ProductValue Realization”released by the Ministry of Natural Resources.We find:First,different modes of ecologicalproduct value realization exist.Different resource endowments,and institutional and environmental factors affectthe selection of the value realization modes.Second,certain obstacles also exist for realizing ecological productvalue,which are mainly reflected in the fact that the articulation of the individual,society,and government is not yetsufficiently close.Third,to promote the development of regional eco-products’mode and value conversion,the implementing party needs to guide the synergy between individual concepts,social participation,and governmentaltop-level design;rationally arrange the allocation of resource elements;mitigate elemental constraints;and proposeeffective technical means and optimization strategies according to the actual situation.展开更多
As a new type of production factor in healthcare,healthcare data elements have been rapidly integrated into various health production processes,such as clinical assistance,health management,biological testing,and oper...As a new type of production factor in healthcare,healthcare data elements have been rapidly integrated into various health production processes,such as clinical assistance,health management,biological testing,and operation and supervision[1,2].Healthcare data elements include biolog.ical and clinical data that are related to disease,environ-mental health data that are associated with life,and operational and healthcare management data that are related to healthcare activities(Figure 1).Activities such as the construction of a data value assessment system,the devel-opment of a data circulation and sharing platform,and the authorization of data compliance and operation products support the strong growth momentum of the market for health care data elements in China[3].展开更多
Plutella xylostella,a major pest of cruciferous vegetables worldwide,has developed resistance to diamide insecticides.Thiotraniliprole,a novel synthetic diamide insecticide,exhibits excellent activity against P.xylost...Plutella xylostella,a major pest of cruciferous vegetables worldwide,has developed resistance to diamide insecticides.Thiotraniliprole,a novel synthetic diamide insecticide,exhibits excellent activity against P.xylostella.In the present study,we aimed to confirm the resistance risk,cross-resistance,and mechanisms of resistance to thiotraniliprole in P.xylostella.After 40 consecutive generations of thiotraniliprole selection,we obtained a thiotraniliprole-resistance P.xylostella strain with a 5141.58-fold resistance ratio(RR)to thiotraniliprole.The overall realized heritability(h^(2))value of resistance was estimated as 0.9 using threshold trait analysis,indicating that the risk of developing resistance to thiotraniliprole is high in P.xylostella.The thiotraniliprole-resistant(TR)strain showed noticeable cross-resistance to chlorantraniliprole(RR=44670.05),cyantraniliprole(RR=7038.58),and tetrachlorantraniliprole(RR=1506.01),but no cross-resistance to tolfenpyrad,indoxacarb,diafenthiuron,or abamectin compared with the susceptible(S)strain.The enzyme assay data showed that the activities of glutathione-S transferase(GST),carboxylesterase(CarE),and the content of cytochrome P450 monooxygenase(P450s)were significantly higher in the TR strain than in the S strain.Sequencing of the full-length PxRyR cDNA revealed the gene site I4790K in the TR strain with a 100%frequency.This mutation in PxRyR likely underlies the high-level cross-resistance between thiotraniliprole and three other diamide insecticides.These findings provide valuable information for optimizing resistance management strategies to delay thiotraniliprole resistance development and ensure sustainable control of P.xylostella.展开更多
In concentric annular pipes,the difference in curvature between the inner and outer wall surfaces creates significant variations in the heat transfer characteristics of the two surfaces.The simplifications of the Ditt...In concentric annular pipes,the difference in curvature between the inner and outer wall surfaces creates significant variations in the heat transfer characteristics of the two surfaces.The simplifications of the Dittus-Boelter equation for circular pipes make it unsuitable for the complex flow induced by the geometry and heat transfer coupling effects in annular pipes.This prevents it from accurately predicting the turbulent heat transfer in concentric annular pipes.This paper used realizableκ–εand low Reynolds number models to conduct numerical simulations of turbulent convective heat transfer in concentric annular pipes and circular pipes.The results indicated that the local heat transfer coefficient and Nusselt number of the inner wall surface of the annular pipe were both higher than those of the outer wall surface.The Darcy resistance coefficient decreased upon increasing the Reynolds number and increased with the inner diameter-to-outer diameter ratio.When using the equivalent diameter as the characteristic scale,the turbulent heat transfer correlation obtained from circular pipes produced significant errors when used to approximate the turbulent convective heat transfer in concentric annular pipes.This error was greater for the inner wall surface,especially when the inner and outer diameters were relatively small,as the Nusselt number error on the inner wall surface reached 60.62%.The error of the Nusselt number on the outer wall surface reached 19.51%.展开更多
Based on the concept of“Lucid waters and lush mountains are invaluable assets”,Chinese government is relying on the ecological and environmental characteristics of cities,in combination with modern ecological,econom...Based on the concept of“Lucid waters and lush mountains are invaluable assets”,Chinese government is relying on the ecological and environmental characteristics of cities,in combination with modern ecological,economic,and sociological theories,to achieve sustainable urban development.However,the value realization of ecological products(EP)faces challenges in four major aspects:quantification,trading,transformation,and sustainability.At this stage,seeking breakthroughs to form a stable development path for the realization of the value of EPs is crucial.This paper examines the Guilin Sustainable Development Innovation Demonstration Zone and conducts a case study on oil tea,a characteristic EP.Based on the value realization of EPs,this paper analyzes the oil tea industry in terms of three functions:ecological protection,regional economic development,and traditional cultural support.Drawing on the theory of the gross ecosystem product,this paper examines the role of the value realization of oil tea in improving the quality of the urban living environment and ecosystem functions in Guilin.The results can help promote research on the shaping effects of endemic EPs on sustainable development with respect to the urban economy.Taking a human-centered perspective,the principles of landsenses ecology and traditional ecological knowledge can help analyze the social,historical,and cultural value of oil tea.Combined with on-site research data,a relationship map centered on oil tea culture is created to explore the importance of developing traditional cultural attributes of local EPs in promoting cultural customs,protecting the cultural diversity of ethnic minorities,and driving the development of the cultural tourism industry.By constructing a sustainable urban development model centered on developing local characteristic EPs with the core elements of ecology-economy-traditional culture,this paper aims to strengthen the ecological protection function of cities,promote high-quality economic development,and enhance the soft power of traditional culture.It provides scientific support for the sustainable development planning in Guilin.展开更多
Whole-process people’s democracy embodies profound human rights implications.As a new theoretical paradigm of socialist democracy with Chinese characteristics,it adheres to the value concept of respecting and protect...Whole-process people’s democracy embodies profound human rights implications.As a new theoretical paradigm of socialist democracy with Chinese characteristics,it adheres to the value concept of respecting and protecting human rights,which has been consistently upheld by the Communist Party of China(CPC)and the Chinese government.Whole-process people’s democracy follows the rights discourse of“the people always being present,”ensuring the realization of democracy in its broadest,most genuine,and most effective form.As a scientifically sound and effective new institutional form of socialist democracy,whole-process people’s democracy centers on ensuring that the people are the masters of the country,constructs a comprehensive,extensive,and coordinated national and social governance system,and better safeguards the people’s rights through broad democratic consultations.As a new practical model of socialist democracy in concrete reality,it highlights the people’s principal position in all aspects and stages of national political and social life from the dimensions of ontology,epistemology,and methodology,thereby promoting the people-centered contemporary Chinese outlook on human rights.The realization of its human rights implications hinges on effective legal guarantees.Strengthening the rule of law is key to fully realizing its human rights implications and advancing the comprehensive development of human rights.展开更多
With the support by the National Natural Science Foundation of China and Southern University of Science and Technology,the research team led by Prof.He JiaQing(何佳清)at Shenzhen Key Lab of Thermoelectric Materials,De...With the support by the National Natural Science Foundation of China and Southern University of Science and Technology,the research team led by Prof.He JiaQing(何佳清)at Shenzhen Key Lab of Thermoelectric Materials,Department of Physics,Southern University of Science and Technology,realized a high energy conversion efficiency of 11.2%in low-cost PbS-based thermoelectric materials,which was published in Energy and Environmental Science(2020,13:579—91).展开更多
A showcase for the ability of the world’s youth Future sports stars started to shine at the 2011 Universiade in Shenzhen, a biennial event that has been changing young people’s lives since the inaugural competition ...A showcase for the ability of the world’s youth Future sports stars started to shine at the 2011 Universiade in Shenzhen, a biennial event that has been changing young people’s lives since the inaugural competition in 1959.展开更多
To achieve great rejuvenation of the Chinese nation is the greatest dream of the Chinese nation in modern times.This is a profound interpretation of the"Chinese Dream",the era proposition,filled with both a ...To achieve great rejuvenation of the Chinese nation is the greatest dream of the Chinese nation in modern times.This is a profound interpretation of the"Chinese Dream",the era proposition,filled with both a heavy historical heritage and heroic self-confidence,pointing out the direction for unity and cohesion of the Chinese people to create a better future.The road of socialism with Chinese characteristics is the road of rejuvenation for the Chinese people and展开更多
文摘Light-emitting diodes(LEDs)are key for the development of next-generation displays for ultra-high-definition television.Alternative materials beyond organic LEDs are required to meet the color purity standards,while retaining low processing cost and environmental friendliness.Liang and colleagues report in Advanced Science that two-dimensional(2D)tin halide perovskite—efficiently stabilized by H3PO2 incorporation—has great promise for ultra-pure red LEDs.
文摘The Sixth Beijing Forum on Human Rights is opened today, which is co-spon- sored by the China Society for Human Rights Studies and the China Foundation for Human Rights Development. First, on behalf of the China Foundation for Human Rights Development, I would like to express warm congratulations to the opening of the Forum, and heartfelt thanks tothe friends who have always cared for and supported for the development and progress of human rights cause of China.
文摘THE Second Session of the 12th National People＇s Congress （NPC） passed the Report on the Work of the Government by Premier Li Keqiang on March 13. The report, delivered on March 5, the opening day of this year＇s annual NPC session, mentions the word ＂reform＂ 77 times and the measures proposed by the report encompass the sectors of the economy, politics, people＇s well-being, rule of law and ecological progress.
基金Supported by the National Science Fund for Distinguished Young Scholars(Grant No.51725102)the National Natural Science Foundation of China(Grant No.51861145305)。
文摘It is known that p-type GeTe-based materials show excellent thermoelectric performance due to the favorable electronic band structure.However,n-type doping in GeTe is of challenge owing to the native Ge vacancies and high hole concentration of about 10^(21)cm^(-3).In the present work,the formation energy of cation vacancies of GeTe is increased through alloying PbSe,and further Bi-doping enables the change of carrier conduction from p-type to n-type.As a result,the n-type thermoelectric performance is obtained in GeTe-based materials.A peak zT of 0.34 at 525 K is obtained for(Ge_(0.6)Pb_(0.4))_(0.88)Bi_(0.12)Te_(0.6)Se_(0.4).These results highlight the realization of n-type doping in GeTe and pave the way for further optimization of the thermoelectric performance of n-type GeTe.
基金Sponsored by Jiangxi Provincial"Twelfth Five-year Plan"Program(13DJ04)Jiangxi Provincial Art and Social Science Program(YG2015036YG2015033)
文摘Red revolutionary site is a significant carrier for inheriting and spreading red culture,a witness of revolutionary history and stones,and also the best place to show connotations and value of red culture.Taking the regiment headquarter and the division headquarter of the First Division of the First Army in Xiushui County,Jiangxi Province for example,this paper explored cultural value of red site,analyzed the existing problems,tried to figure out scientific approaches of realizing cultural value of red site,so as to promote the sharing and inheritance of cultural value of red revolutionary site.
基金The National Natural Science Foundation of China(41907392)。
文摘The article uses a case study approach to investigate the mechanisms of ecological product value realization,and influencing factors.Specifically,we use a case analysis framework based on the“economy-societynatural ecology”perspective to analyze and compare the three batches of“Typical Cases of Ecological ProductValue Realization”released by the Ministry of Natural Resources.We find:First,different modes of ecologicalproduct value realization exist.Different resource endowments,and institutional and environmental factors affectthe selection of the value realization modes.Second,certain obstacles also exist for realizing ecological productvalue,which are mainly reflected in the fact that the articulation of the individual,society,and government is not yetsufficiently close.Third,to promote the development of regional eco-products’mode and value conversion,the implementing party needs to guide the synergy between individual concepts,social participation,and governmentaltop-level design;rationally arrange the allocation of resource elements;mitigate elemental constraints;and proposeeffective technical means and optimization strategies according to the actual situation.
基金supported by National Natural Science Foundation of China(Grants 72474022,71974011,72174022,71972012,71874009)"BIT think tank"Promotion Plan of Science and Technology Innovation Program of Beijing Institute of Technology(Grants 2024CX14017,2023CX13029).
文摘As a new type of production factor in healthcare,healthcare data elements have been rapidly integrated into various health production processes,such as clinical assistance,health management,biological testing,and operation and supervision[1,2].Healthcare data elements include biolog.ical and clinical data that are related to disease,environ-mental health data that are associated with life,and operational and healthcare management data that are related to healthcare activities(Figure 1).Activities such as the construction of a data value assessment system,the devel-opment of a data circulation and sharing platform,and the authorization of data compliance and operation products support the strong growth momentum of the market for health care data elements in China[3].
基金Supported by the Zhejiang Provincial Public Welfare Technology Application Research Program(No:LGN21C140001).
文摘Plutella xylostella,a major pest of cruciferous vegetables worldwide,has developed resistance to diamide insecticides.Thiotraniliprole,a novel synthetic diamide insecticide,exhibits excellent activity against P.xylostella.In the present study,we aimed to confirm the resistance risk,cross-resistance,and mechanisms of resistance to thiotraniliprole in P.xylostella.After 40 consecutive generations of thiotraniliprole selection,we obtained a thiotraniliprole-resistance P.xylostella strain with a 5141.58-fold resistance ratio(RR)to thiotraniliprole.The overall realized heritability(h^(2))value of resistance was estimated as 0.9 using threshold trait analysis,indicating that the risk of developing resistance to thiotraniliprole is high in P.xylostella.The thiotraniliprole-resistant(TR)strain showed noticeable cross-resistance to chlorantraniliprole(RR=44670.05),cyantraniliprole(RR=7038.58),and tetrachlorantraniliprole(RR=1506.01),but no cross-resistance to tolfenpyrad,indoxacarb,diafenthiuron,or abamectin compared with the susceptible(S)strain.The enzyme assay data showed that the activities of glutathione-S transferase(GST),carboxylesterase(CarE),and the content of cytochrome P450 monooxygenase(P450s)were significantly higher in the TR strain than in the S strain.Sequencing of the full-length PxRyR cDNA revealed the gene site I4790K in the TR strain with a 100%frequency.This mutation in PxRyR likely underlies the high-level cross-resistance between thiotraniliprole and three other diamide insecticides.These findings provide valuable information for optimizing resistance management strategies to delay thiotraniliprole resistance development and ensure sustainable control of P.xylostella.
基金Supported by the Major Program of the National Natural Science Foundation of China(Grant No.51736007).
文摘In concentric annular pipes,the difference in curvature between the inner and outer wall surfaces creates significant variations in the heat transfer characteristics of the two surfaces.The simplifications of the Dittus-Boelter equation for circular pipes make it unsuitable for the complex flow induced by the geometry and heat transfer coupling effects in annular pipes.This prevents it from accurately predicting the turbulent heat transfer in concentric annular pipes.This paper used realizableκ–εand low Reynolds number models to conduct numerical simulations of turbulent convective heat transfer in concentric annular pipes and circular pipes.The results indicated that the local heat transfer coefficient and Nusselt number of the inner wall surface of the annular pipe were both higher than those of the outer wall surface.The Darcy resistance coefficient decreased upon increasing the Reynolds number and increased with the inner diameter-to-outer diameter ratio.When using the equivalent diameter as the characteristic scale,the turbulent heat transfer correlation obtained from circular pipes produced significant errors when used to approximate the turbulent convective heat transfer in concentric annular pipes.This error was greater for the inner wall surface,especially when the inner and outer diameters were relatively small,as the Nusselt number error on the inner wall surface reached 60.62%.The error of the Nusselt number on the outer wall surface reached 19.51%.
基金supported by the National Key Research and Development Program of China“Research on urban sustainable development evaluation data fusion management technology”[Grant No.2022YFC3802903]the Strategic Priority Research Program of the Chinese Academy of Sciences[Grant No.XDA23030403].
文摘Based on the concept of“Lucid waters and lush mountains are invaluable assets”,Chinese government is relying on the ecological and environmental characteristics of cities,in combination with modern ecological,economic,and sociological theories,to achieve sustainable urban development.However,the value realization of ecological products(EP)faces challenges in four major aspects:quantification,trading,transformation,and sustainability.At this stage,seeking breakthroughs to form a stable development path for the realization of the value of EPs is crucial.This paper examines the Guilin Sustainable Development Innovation Demonstration Zone and conducts a case study on oil tea,a characteristic EP.Based on the value realization of EPs,this paper analyzes the oil tea industry in terms of three functions:ecological protection,regional economic development,and traditional cultural support.Drawing on the theory of the gross ecosystem product,this paper examines the role of the value realization of oil tea in improving the quality of the urban living environment and ecosystem functions in Guilin.The results can help promote research on the shaping effects of endemic EPs on sustainable development with respect to the urban economy.Taking a human-centered perspective,the principles of landsenses ecology and traditional ecological knowledge can help analyze the social,historical,and cultural value of oil tea.Combined with on-site research data,a relationship map centered on oil tea culture is created to explore the importance of developing traditional cultural attributes of local EPs in promoting cultural customs,protecting the cultural diversity of ethnic minorities,and driving the development of the cultural tourism industry.By constructing a sustainable urban development model centered on developing local characteristic EPs with the core elements of ecology-economy-traditional culture,this paper aims to strengthen the ecological protection function of cities,promote high-quality economic development,and enhance the soft power of traditional culture.It provides scientific support for the sustainable development planning in Guilin.
基金“Research on the Construction of the Rule of Law Guarantee System for Whole-process People’s Democracy”(Project Approval Number 22JZD017)a Major Project on Philosophy and Social Science Research funded by the Ministry of Education of China+1 种基金“Research on Guangdong’s Practice of Whole-process People’s Democracy Through Legal Means by People’s Congresses”(Project Approval Number GD23WTA01)a project of the Guangdong Planning Office of Philosophy and Social Science.
文摘Whole-process people’s democracy embodies profound human rights implications.As a new theoretical paradigm of socialist democracy with Chinese characteristics,it adheres to the value concept of respecting and protecting human rights,which has been consistently upheld by the Communist Party of China(CPC)and the Chinese government.Whole-process people’s democracy follows the rights discourse of“the people always being present,”ensuring the realization of democracy in its broadest,most genuine,and most effective form.As a scientifically sound and effective new institutional form of socialist democracy,whole-process people’s democracy centers on ensuring that the people are the masters of the country,constructs a comprehensive,extensive,and coordinated national and social governance system,and better safeguards the people’s rights through broad democratic consultations.As a new practical model of socialist democracy in concrete reality,it highlights the people’s principal position in all aspects and stages of national political and social life from the dimensions of ontology,epistemology,and methodology,thereby promoting the people-centered contemporary Chinese outlook on human rights.The realization of its human rights implications hinges on effective legal guarantees.Strengthening the rule of law is key to fully realizing its human rights implications and advancing the comprehensive development of human rights.
文摘With the support by the National Natural Science Foundation of China and Southern University of Science and Technology,the research team led by Prof.He JiaQing(何佳清)at Shenzhen Key Lab of Thermoelectric Materials,Department of Physics,Southern University of Science and Technology,realized a high energy conversion efficiency of 11.2%in low-cost PbS-based thermoelectric materials,which was published in Energy and Environmental Science(2020,13:579—91).
文摘A showcase for the ability of the world’s youth Future sports stars started to shine at the 2011 Universiade in Shenzhen, a biennial event that has been changing young people’s lives since the inaugural competition in 1959.
文摘To achieve great rejuvenation of the Chinese nation is the greatest dream of the Chinese nation in modern times.This is a profound interpretation of the"Chinese Dream",the era proposition,filled with both a heavy historical heritage and heroic self-confidence,pointing out the direction for unity and cohesion of the Chinese people to create a better future.The road of socialism with Chinese characteristics is the road of rejuvenation for the Chinese people and
