The potential inclusion of Japan and the Republic of Korea in the AUKUS(Australia,the United Kingdom,and the United States)trilateral security pact has sparked extensive debate and speculation regarding its implicatio...The potential inclusion of Japan and the Republic of Korea in the AUKUS(Australia,the United Kingdom,and the United States)trilateral security pact has sparked extensive debate and speculation regarding its implications for Asia’s delicate geopolitical dynamics and the region’s relationship with China.This essay explores the multifaceted consequences of such a development,analyzing its effects on the regional security architecture,economic ties,and the intricate network of alliances and rivalries.Employing a mixed-methods approach that integrates qualitative analysis of expert opinions with quantitative assessments of economic and military data,the study seeks to provide a comprehensive understanding of the potential ramifications.The findings indicate that while AUKUS expansion could enhance deterrence against perceived threats,it may also escalate tensions,disrupt economic interdependencies,and trigger a regional arms race.The essay emphasizes the importance of nuanced diplomacy and dialogue to address these challenges and preserve regional stability.展开更多
Since the establishment of the People’s Republic of China, both the Communist Party and the government have placed great emphasis on the advancement of traditional Chinese medicine. Acupuncture and moxibustion have b...Since the establishment of the People’s Republic of China, both the Communist Party and the government have placed great emphasis on the advancement of traditional Chinese medicine. Acupuncture and moxibustion have been actively involved in combating major epidemics such as malaria, schistosomiasis, and COVID-19. This article conducts a historical review of these three significant cases to elucidate how the acupuncture community has effectively utilized its unique advantages and characteristics through theoretical discussions, clinical practices, experimental research, as well as receiving administrative leadership and political support from the Communist Party of China and government. We provide an objective evaluation of their effectiveness while summarizing historical experiences to serve as a reference for future utilization of acupuncture and moxibustion therapy in epidemic relief efforts. Additionally, propose four suggestions: strengthening Party leadership and enhancing political support;timely summarization of experiences to establish programs and systems;deepening scientific research by integrating experimental findings with clinical practice;focusing on public awareness campaigns and education to solidify grassroots foundations.展开更多
Red tourism is a derivative product of organized patriotic education and revolutionary education activities.Memorial Park of Soviet Republic of China in Ruijin City,Jiangxi Province,as a representative of red tourism ...Red tourism is a derivative product of organized patriotic education and revolutionary education activities.Memorial Park of Soviet Republic of China in Ruijin City,Jiangxi Province,as a representative of red tourism destination,is designed with red and patriotic education as the principal line to carry forward revolutionary traditions and spirits of Red Army,as well as create "red" garden landscapes with strong patriotism,time spirits and leisure elements.展开更多
Urban-suburban-rural(U-S-R)zones exhibit distinctive transitional characteristics in interaction between human and nature.U-S-R transition zones(U-S-RTZ)are also highlighting the function diversity and landscape heter...Urban-suburban-rural(U-S-R)zones exhibit distinctive transitional characteristics in interaction between human and nature.U-S-R transition zones(U-S-RTZ)are also highlighting the function diversity and landscape heterogeneity across territorial spaces.As a super megacity in western China,Chengdu’s rapid urbanization has driven the evolution of U-S-R spaces,resulting in a sequential structure.To promote the high-quality spatial development of urban-rural region in a structured and efficient manner,it is essential to con-duct a scientific examination of the multidimensional interconnection within the U-S-RTZ framework.By proposing a novel identifica-tion method of U-S-RTZ and taking Chengdu,China as a case study,grounded in a blender of natural and humanistic factors,this study quantitatively delineated and explored the spatial evolutions of U-S-RTZ and stated the optimization orientation and sustainable devel-opment strategies of the production-living-ecological spaces along the U-S-R gradients.The results show that:1)it is suitable for the quantitative analysis of U-S-RTZ by established three-dimensional identification system in this study.2)In 1990-2020,the urban-sub-urban transition zones(U-STZ)in Chengdu have continuously undergone a substantial increase,and the scale of the suburban-rural transition zones(S-RTZ)has continued to expand slightly,while the space of rural-ecological transition zones(R-ETZ)has noticeably compressed.3)The landuse dynamics within U-S-RTZ has gradually increased in 1990-2020.The main direction of landuse transition was from farmland to construction land or woodlands,with the expansion of construction land being the most significant.4)R-ETZ primarily focus on ecological functions,and there is a trade-off relationship between the production-ecological function within the S-RTZ,and in the U-STZ,production-living composite functions are prioritized.This study emphasizes the importance of elastic planning and precise governance within the U-S-RTZ in a rapid urbanization region,particularly highlighting the role of suburbs as landscape corridors and service hubs in urban-rural integration.It elucidates to the practical implications for achieving high-quality development of integrated U-S-R territorial spaces.展开更多
The 6 August 2023 M_(W)5.5 Pingyuan earthquake is the largest earthquake in the central North China Plain(NCP)over the past two decades.Due to the thick sedimentary cover,no corresponding active faults have been repor...The 6 August 2023 M_(W)5.5 Pingyuan earthquake is the largest earthquake in the central North China Plain(NCP)over the past two decades.Due to the thick sedimentary cover,no corresponding active faults have been reported yet in the epicenter area.Thus,this earthquake presents a unique opportunity to delve into the buried active faults beneath the NCP.By integrating strong ground motion records,high-precision aftershock sequence relocation,and focal mechanism solutions,we gain insights into the seismotectonics of the Pingyuan earthquake.The aftershocks are clustered at depths ranging from 15 to 20 km and delineate a NE-SW trend,consistent with the distribution of ground motion records.A NE-SW nodal plane(226°)of the focal mechanism solutions is also derived from regional waveform inversion,suggesting that the mainshock was dominated by strike-slip motion with minor normal faulting component.Integrating regional geological data,we propose that an unrecognized fault between the NE-SW trending Gaotang and Lingxian-Yangxin faults is the seismogenic fault of this event.Based on the S-wave velocity structure beneath the NCP,this fault probably extends into the lower crust with a high angle.Considering the tectonic regime and stress state,we speculate that the interplay of shear strain between the Amurian and South China blocks and the hot upwelling magma from the subducted paleo Pacific flat slab significantly contributed to the generation of the Pingyuan earthquake.展开更多
It is an important way to realize rural revitalization and sustainable development to guide rural settlement transition(RST)in an appropriate way.This paper uses actor network theory(ANT)to construct a theoretical fra...It is an important way to realize rural revitalization and sustainable development to guide rural settlement transition(RST)in an appropriate way.This paper uses actor network theory(ANT)to construct a theoretical framework for the study of RST.Taking two typical villages with different transition paths in rural areas of North China Plain as examples,this paper reveals the mechanism of RST and makes a comparative analysis.The results show that:1)after identifying problems and obligatory passage point,key actors recruit heterogeneous actors into the actor network by entrusting them with common interests,and realize RST under the system operation.2)Rural settlements under different transition paths have similarities in the problems to be solved,collective actions and policy factors,but there are differences in the transition process,mechanism and effect.The actor network and mechanism of RST through the path of new rural community construction are more complex and the transition effect is more thorough.In contrast,the degree of RST of retention development path is limited if there is no resource and location advantage.3)Based on the applicable conditions of different paths,this paper designs a logical framework of‘Situation-Structure-Behavior-Result’to scientifically guide the identification of RST paths under the background of rural revitalization.展开更多
The Northeastern China cold vortex(NCCV)is one type of strong cyclonic vortex that occurs near Northeastern China(NEC),and NCCV activities are typically accompanied by a series of hazardous weather.This paper employed...The Northeastern China cold vortex(NCCV)is one type of strong cyclonic vortex that occurs near Northeastern China(NEC),and NCCV activities are typically accompanied by a series of hazardous weather.This paper employed an automatic algorithm to identify the NCCVs from 1979 to 2018 and analyzed their circulation patterns and climatic impacts by using the defined NCCV intensity index(NCCVI).The analysis revealed that the NCCV activities in summer exhibited a strong inter-annual variability,with an obvious periodicity of 3-4 years and 6-7 years,but without significant trends.In years when the NCCVI was high,NEC experienced negative geopotential height anomalies,cyclonic circulation,and cooler temperature anomalies,which were conducive to the maintenance and development of NCCV activities.Furthermore,large amounts of water vapor converged in NEC through two transportation routes as the NCCVs intensified,leading to a significant positive(negative)correlation with the summer precipitation(surface temperature)in NEC.The Atlantic sea surface temperature(SST)anomalies were closely related to summer NCCV activities.As the Atlantic SST rose,large amounts of surface sensible and latent heat flux were transported into the lower troposphere,inducing a positive geopotential height anomaly that occurred on the east side of the heat source.As a result,an eastward diverging flow was formed in the upper troposphere and propagated downstream,i.e.,the eastward propagating Rossby wave train,which eventually led to a coupled circulation in the Ural Mountains and NEC,as well as more intensive NCCV activities in summer.展开更多
The Dongping deposit is the largest alkalic-hosted gold deposit in China containing>100 t of Au.This paper presents a new understanding for Dongping ore system,based on the previous studies.The mineralization origi...The Dongping deposit is the largest alkalic-hosted gold deposit in China containing>100 t of Au.This paper presents a new understanding for Dongping ore system,based on the previous studies.The mineralization originally occurred at 400-380 Ma,simultaneous with emplacement of the Shuiquangou alkaline complex,and was overprinted by the hydrothermal activity in the Yanshanian.Isotope compositions of ores indicate metals of the deposit are mainly provided by the Shuiquangou complex.Ore-forming fluids are characterized by increasing oxygen fugacity and decreasing sulfur fugacity,while tellurium fugacity increased in the Stage II-2 and decreased in Stage II-3.These systematic changes are closely related to the processes of mineral precipitation and fluid evolution.Sulfide precipitation from Stage Ⅰ to Stage Ⅱ was triggered by fluid boiling,which leads to the precipitation of Pb-Bi-Te,due to decrement of sulfur fugacity.Condensation of gas phase containing high concentration of H_2Te leads to precipitation of Te-Au-Ag minerals and native tellurium.Based on these hypotheses,this paper present a polyphase metallogenic model as follow.During the Devonian,fluids were released from alkaline magmas,which carried ore-forming materials form the surrounding rocks and precipitate the early ores.During the Jurassic-Cretaceous,fluorine-rich fluids exsolved from highly factionated Shangshuiquan granite,which extracted and concentrated Au from the Shuiquangou complex and the Sanggan Group metamorphic rocks,and finally formed the Dongping gold deposit.展开更多
Jade ware Jue is one of the most fashionable ornament in ancient China from the Neolithic Age to the Han Dynasty.In this study,the remnants of jade ware Jue,from Lijiashan ancient tomb group have been tested and analy...Jade ware Jue is one of the most fashionable ornament in ancient China from the Neolithic Age to the Han Dynasty.In this study,the remnants of jade ware Jue,from Lijiashan ancient tomb group have been tested and analyzed respectively.The samples through a light etch surface showing glass luster and those with a severe etch surface showing earthen luster.With the aid of X-ray fluorescence Spectrometer(X-ray Fluorescence)test and X-ray diffraction(XRD)detection,the results show that tremolite is not the main mineral of the sample.The main components of the tested samples with light erosion are antigorite and talc,although the main components of the samples with severe erosion are calcite containing calcium carbonate barium.Furthermore,the research on jade ware Jue in Yunnan culture has not only contributed to our further understanding of the jade objects from Yunnan culture and the variety of jade material located in the Yunnan Province.It also provides a basis for the trace of the history and culture through the distribution and evolution of burial hierarchy laws.At the same time,the microscopic observation of the tested samples manifested a residual trace of“string”at the perforation,which has played a critical role in restoring the wearing of jade ware Jue from the tombs of the ancient Yunnan State and the handicraft skills at that time.展开更多
ObjectiveThis study aims to characterize the occurrences and interior structural features of botryoidal structures from the Sinian Dengying Formation in the Sichuan Basin of Southwestern China, and to shed light on th...ObjectiveThis study aims to characterize the occurrences and interior structural features of botryoidal structures from the Sinian Dengying Formation in the Sichuan Basin of Southwestern China, and to shed light on their formation mechanism.展开更多
Wheat yellow dwarf disease(BYD),caused by different species of barley/cereal yellow dwarf viruses(B/CYDVs),is one of the most serious cereal diseases in China and the Czech Republic.Because genetic diversity of the vi...Wheat yellow dwarf disease(BYD),caused by different species of barley/cereal yellow dwarf viruses(B/CYDVs),is one of the most serious cereal diseases in China and the Czech Republic.Because genetic diversity of the virus directly influences disease epidemiology,the molecular diversity and population structure of 24 Chinese isolates and 16 the Czech Republic isolates of BYDV-PAV from different regions in two countries were analyzed by sequencing their coat protein(CP)and readthrough protein(RTP)domain(RTD)genes and comparing the sequences with six CP and 16 RTP sequences of BYDVPAV isolates from the NCBI database based on nucleotide identity position,phylogenetic analysis and nucleotide diversity.Nucleotide identities between the Chinese and the Czech Republic isolates for the CP were 76.6–99.4%,73.9–89.1%for RTD(ORF5),respectively.The Chinese and the other country isolates showed 74.7–99.2%nucleotide identity for RTP(ORF3+ORF5).Phylogenetic analysis of CP sequences showed that 20 Chinese isolates clustered in the same clade,but the other four Chinese isolates clustered in another clade with the isolates from the Czech Republic and other counties.The population of BYDV-PAV in China had greater nucleotide variability and was more divergent than that in the Czech Republic.Geographical and ecological factors but not hosts might contribute to the population differences in the two countries.展开更多
1. To draft and revise the state laws and regulations on standardization, to formulate and implement the policies on standardization; to formulate the national administrative rules on standardization and develop relev...1. To draft and revise the state laws and regulations on standardization, to formulate and implement the policies on standardization; to formulate the national administrative rules on standardization and develop relevant systems; to organize the implementation of laws, rules and systems on standardization:展开更多
Preamble The World Trade Organization ("WTO"), pursuant to the approval of the Ministerial Conference of the WTO accorded under Article Ⅻ of the Marrakesh Agreement Establishing the World Trade Organization...Preamble The World Trade Organization ("WTO"), pursuant to the approval of the Ministerial Conference of the WTO accorded under Article Ⅻ of the Marrakesh Agreement Establishing the World Trade Organization ("WTO Agreement"), and the People's Republic of China ("China"). Recalling that China was an original contracting party to the General Agreement on Tariffs and Trade 1947. Taking note that China is a signatory to the Final Act Embodying the Results of the Uruguay Round of Multilateral Trade Negotiati...展开更多
With large-scale engineering projects being carried out in China, a large number of fossil localities have been discovered and excavated by responsible agencies, but still some important fossils of great value have be...With large-scale engineering projects being carried out in China, a large number of fossil localities have been discovered and excavated by responsible agencies, but still some important fossils of great value have been removed and smuggled into foreign countries. In the last three years, more than 1345 fossil specimens have been intercepted by Customs in Shenzhen, Shanghai, Tianjin, Beijing and elsewhere, and more than 5000 fossils, most of which are listed as key fossils,展开更多
A dense seismic network was installed in the capital region of China in recent years,which makes it possible to resolve the focal mechanisms of small earthquakes. We gathered large earthquake focal mechanisms from the...A dense seismic network was installed in the capital region of China in recent years,which makes it possible to resolve the focal mechanisms of small earthquakes. We gathered large earthquake focal mechanisms from the last fifty years and moderate or small earthquake focal mechanisms from between 2002 and 2004,and calculated the present tectonic stress field of the capital region by the grid search method, which weighs different sized earthquakes and can improve the accuracy of the stress field inversion. The analysis of inversion results of different sub-regions shows that the azinuth of the maximum principal compressive stress axis is NE43°- 86° in the Beijing-Zhangjiakou-Datong area,NE38°-86° in the Tangshan area,and NE79°- 81° in the Xingtai area. Inversion results of this paper are similar to previous results,which proves the correctness of the approach. As revealed by the results,the stress field of the capital region is characterized by overall consistency and sub-regional differences. This study provides reference for earthquake mechanism explanation and geodynamics research.展开更多
In accordance with the regulations as stipulated in the Pro-visions of the Customs of the People’s Republic of China on Ex-ternal Audit, the Customs officers engaged in external audit shalluse the Certificate of Exte...In accordance with the regulations as stipulated in the Pro-visions of the Customs of the People’s Republic of China on Ex-ternal Audit, the Customs officers engaged in external audit shalluse the Certificate of External Audit of the Customs (hereinafterreferred to as Certificate) as of June 5, 1997. The Certificate has ablack leather outer covering and is inlaid inside with a pierced andguilded customs emblem, which consists of the red national em-blem in its upper part, and a key and a truncheon encircled by earsof wheat in its lower part. Put in a leather covering, the Certificateis a card sealed up with plastics, on which there is a bareheadedcolour photo of the holder in the Customs uniform and with a展开更多
The Ministerial Conference Decision of 10 NOV.2001 Having regard to paragraph 2 of Article Ⅻ and paragraph 1 of Article Ⅸ of the Marrakesh Agreement Establishing the World Trade Organization, and the Decision—Makin...The Ministerial Conference Decision of 10 NOV.2001 Having regard to paragraph 2 of Article Ⅻ and paragraph 1 of Article Ⅸ of the Marrakesh Agreement Establishing the World Trade Organization, and the Decision—Making Procedures under Articles Ⅸ and Ⅻ of the Marrakesh Agreement Establishing the World Trade Organization agreed by the General Council (WT/L/93). Taking note of the application 0f the People's Republic of China for accession to the Marrakesh Agreement Establishing the World Trade Organiza-展开更多
In 1998, facing the complicated and severe domestic and internationaleconomic environment, people of all nationalities, under the correct lead-ership of the Central Party Committee and the State Council, implement-ed ...In 1998, facing the complicated and severe domestic and internationaleconomic environment, people of all nationalities, under the correct lead-ership of the Central Party Committee and the State Council, implement-ed a series of policies aiming at increasing input and expanding domesticdemand. Difficulties brought about by the Asian financial crisis and dev-astating flooding were overcome, various reforms were further deepened,and economic growth was promoted, resulting in great achievements at-tracting worldwide attention.展开更多
The structural characteristics of Chinese side-opening costumes during the Republic Period of China were investigated.By measuring and recovering the physical structures of side-opening costume objects from the Folk C...The structural characteristics of Chinese side-opening costumes during the Republic Period of China were investigated.By measuring and recovering the physical structures of side-opening costume objects from the Folk Costumes Biography Museum of Jiangnan University,three structural characteristics were analyzed.These structural characteristics show that most of the side-opening costumes during the Republic Period of China remain traditional Chinese costume structures.The general structural characteristics of side-opening costumes are concluded and the structural cutting methods can inspire current designs as well as provide useful references for contemporary fashion designers.展开更多
Zhongshan Road in Nanjing City was formerly known as "Meridian of the Republic of China", signif icant buildings of the Republic of China were mostly distributed along this modern avenue. The diversifi ed st...Zhongshan Road in Nanjing City was formerly known as "Meridian of the Republic of China", signif icant buildings of the Republic of China were mostly distributed along this modern avenue. The diversifi ed styles and types of these buildings refl ect the historical changes of modern Chinese buildings, and also record history of that age. The buildings are intangible cultural heritages of not only Nanjing, but also China. Study on and protection of these buildings is a process of reviewing modern architectural history of China, and also rethinking the inheritance and development of traditional Chinese cultures. In addition, the research promotes the coordinated development of modern urban construction and social cultures.展开更多
文摘The potential inclusion of Japan and the Republic of Korea in the AUKUS(Australia,the United Kingdom,and the United States)trilateral security pact has sparked extensive debate and speculation regarding its implications for Asia’s delicate geopolitical dynamics and the region’s relationship with China.This essay explores the multifaceted consequences of such a development,analyzing its effects on the regional security architecture,economic ties,and the intricate network of alliances and rivalries.Employing a mixed-methods approach that integrates qualitative analysis of expert opinions with quantitative assessments of economic and military data,the study seeks to provide a comprehensive understanding of the potential ramifications.The findings indicate that while AUKUS expansion could enhance deterrence against perceived threats,it may also escalate tensions,disrupt economic interdependencies,and trigger a regional arms race.The essay emphasizes the importance of nuanced diplomacy and dialogue to address these challenges and preserve regional stability.
基金the Foundation of 2023 Guangdong Philosophy and Social Science Planning Discipline Co-construction Projects(Grant No.GD23XZL07).
文摘Since the establishment of the People’s Republic of China, both the Communist Party and the government have placed great emphasis on the advancement of traditional Chinese medicine. Acupuncture and moxibustion have been actively involved in combating major epidemics such as malaria, schistosomiasis, and COVID-19. This article conducts a historical review of these three significant cases to elucidate how the acupuncture community has effectively utilized its unique advantages and characteristics through theoretical discussions, clinical practices, experimental research, as well as receiving administrative leadership and political support from the Communist Party of China and government. We provide an objective evaluation of their effectiveness while summarizing historical experiences to serve as a reference for future utilization of acupuncture and moxibustion therapy in epidemic relief efforts. Additionally, propose four suggestions: strengthening Party leadership and enhancing political support;timely summarization of experiences to establish programs and systems;deepening scientific research by integrating experimental findings with clinical practice;focusing on public awareness campaigns and education to solidify grassroots foundations.
基金Supported by National Social Science Foundation(09BJY024)2008 Open Task of National Key Laboratory of Subtropical Architectural Science,South China University of Technology(2008KB15)~~
文摘Red tourism is a derivative product of organized patriotic education and revolutionary education activities.Memorial Park of Soviet Republic of China in Ruijin City,Jiangxi Province,as a representative of red tourism destination,is designed with red and patriotic education as the principal line to carry forward revolutionary traditions and spirits of Red Army,as well as create "red" garden landscapes with strong patriotism,time spirits and leisure elements.
基金Under the auspices of National Natural Science Foundation of China(No.41930651)Sichuan Science and Technology Program(No.2023NSFSC1979)。
文摘Urban-suburban-rural(U-S-R)zones exhibit distinctive transitional characteristics in interaction between human and nature.U-S-R transition zones(U-S-RTZ)are also highlighting the function diversity and landscape heterogeneity across territorial spaces.As a super megacity in western China,Chengdu’s rapid urbanization has driven the evolution of U-S-R spaces,resulting in a sequential structure.To promote the high-quality spatial development of urban-rural region in a structured and efficient manner,it is essential to con-duct a scientific examination of the multidimensional interconnection within the U-S-RTZ framework.By proposing a novel identifica-tion method of U-S-RTZ and taking Chengdu,China as a case study,grounded in a blender of natural and humanistic factors,this study quantitatively delineated and explored the spatial evolutions of U-S-RTZ and stated the optimization orientation and sustainable devel-opment strategies of the production-living-ecological spaces along the U-S-R gradients.The results show that:1)it is suitable for the quantitative analysis of U-S-RTZ by established three-dimensional identification system in this study.2)In 1990-2020,the urban-sub-urban transition zones(U-STZ)in Chengdu have continuously undergone a substantial increase,and the scale of the suburban-rural transition zones(S-RTZ)has continued to expand slightly,while the space of rural-ecological transition zones(R-ETZ)has noticeably compressed.3)The landuse dynamics within U-S-RTZ has gradually increased in 1990-2020.The main direction of landuse transition was from farmland to construction land or woodlands,with the expansion of construction land being the most significant.4)R-ETZ primarily focus on ecological functions,and there is a trade-off relationship between the production-ecological function within the S-RTZ,and in the U-STZ,production-living composite functions are prioritized.This study emphasizes the importance of elastic planning and precise governance within the U-S-RTZ in a rapid urbanization region,particularly highlighting the role of suburbs as landscape corridors and service hubs in urban-rural integration.It elucidates to the practical implications for achieving high-quality development of integrated U-S-R territorial spaces.
基金supported from the National Natural Science Foundation of China(No.42374081)the Fundamental Research Funds for the Institute of Geophysics,China Earthquake Administration(Nos.DQJB23B22,DQJB22K36 and DQJB23Z04)Hong Research Grants Council(Nos.14306122 and 14308523)。
文摘The 6 August 2023 M_(W)5.5 Pingyuan earthquake is the largest earthquake in the central North China Plain(NCP)over the past two decades.Due to the thick sedimentary cover,no corresponding active faults have been reported yet in the epicenter area.Thus,this earthquake presents a unique opportunity to delve into the buried active faults beneath the NCP.By integrating strong ground motion records,high-precision aftershock sequence relocation,and focal mechanism solutions,we gain insights into the seismotectonics of the Pingyuan earthquake.The aftershocks are clustered at depths ranging from 15 to 20 km and delineate a NE-SW trend,consistent with the distribution of ground motion records.A NE-SW nodal plane(226°)of the focal mechanism solutions is also derived from regional waveform inversion,suggesting that the mainshock was dominated by strike-slip motion with minor normal faulting component.Integrating regional geological data,we propose that an unrecognized fault between the NE-SW trending Gaotang and Lingxian-Yangxin faults is the seismogenic fault of this event.Based on the S-wave velocity structure beneath the NCP,this fault probably extends into the lower crust with a high angle.Considering the tectonic regime and stress state,we speculate that the interplay of shear strain between the Amurian and South China blocks and the hot upwelling magma from the subducted paleo Pacific flat slab significantly contributed to the generation of the Pingyuan earthquake.
基金Under the auspices of the Taishan Scholars Project Special FundsNational Natural Science Fundation of China(No.42077434,42001199)Youth Innovation Technology Project of Higher School in Shandong Province(No.2019RWG016)。
文摘It is an important way to realize rural revitalization and sustainable development to guide rural settlement transition(RST)in an appropriate way.This paper uses actor network theory(ANT)to construct a theoretical framework for the study of RST.Taking two typical villages with different transition paths in rural areas of North China Plain as examples,this paper reveals the mechanism of RST and makes a comparative analysis.The results show that:1)after identifying problems and obligatory passage point,key actors recruit heterogeneous actors into the actor network by entrusting them with common interests,and realize RST under the system operation.2)Rural settlements under different transition paths have similarities in the problems to be solved,collective actions and policy factors,but there are differences in the transition process,mechanism and effect.The actor network and mechanism of RST through the path of new rural community construction are more complex and the transition effect is more thorough.In contrast,the degree of RST of retention development path is limited if there is no resource and location advantage.3)Based on the applicable conditions of different paths,this paper designs a logical framework of‘Situation-Structure-Behavior-Result’to scientifically guide the identification of RST paths under the background of rural revitalization.
基金National Natural Science Foundation of China(41975073,42274215)Wuxi University Research Start-up Fund for Introduced Talents (2023r037)+1 种基金Qinglan Project of Jiangsu Province for DING Liu-guan"333"Project of Jiangsu Province for DING Liu-guan
文摘The Northeastern China cold vortex(NCCV)is one type of strong cyclonic vortex that occurs near Northeastern China(NEC),and NCCV activities are typically accompanied by a series of hazardous weather.This paper employed an automatic algorithm to identify the NCCVs from 1979 to 2018 and analyzed their circulation patterns and climatic impacts by using the defined NCCV intensity index(NCCVI).The analysis revealed that the NCCV activities in summer exhibited a strong inter-annual variability,with an obvious periodicity of 3-4 years and 6-7 years,but without significant trends.In years when the NCCVI was high,NEC experienced negative geopotential height anomalies,cyclonic circulation,and cooler temperature anomalies,which were conducive to the maintenance and development of NCCV activities.Furthermore,large amounts of water vapor converged in NEC through two transportation routes as the NCCVs intensified,leading to a significant positive(negative)correlation with the summer precipitation(surface temperature)in NEC.The Atlantic sea surface temperature(SST)anomalies were closely related to summer NCCV activities.As the Atlantic SST rose,large amounts of surface sensible and latent heat flux were transported into the lower troposphere,inducing a positive geopotential height anomaly that occurred on the east side of the heat source.As a result,an eastward diverging flow was formed in the upper troposphere and propagated downstream,i.e.,the eastward propagating Rossby wave train,which eventually led to a coupled circulation in the Ural Mountains and NEC,as well as more intensive NCCV activities in summer.
基金financially supported by the project of the China Geological Survey(DD20230292,DD20242591)。
文摘The Dongping deposit is the largest alkalic-hosted gold deposit in China containing>100 t of Au.This paper presents a new understanding for Dongping ore system,based on the previous studies.The mineralization originally occurred at 400-380 Ma,simultaneous with emplacement of the Shuiquangou alkaline complex,and was overprinted by the hydrothermal activity in the Yanshanian.Isotope compositions of ores indicate metals of the deposit are mainly provided by the Shuiquangou complex.Ore-forming fluids are characterized by increasing oxygen fugacity and decreasing sulfur fugacity,while tellurium fugacity increased in the Stage II-2 and decreased in Stage II-3.These systematic changes are closely related to the processes of mineral precipitation and fluid evolution.Sulfide precipitation from Stage Ⅰ to Stage Ⅱ was triggered by fluid boiling,which leads to the precipitation of Pb-Bi-Te,due to decrement of sulfur fugacity.Condensation of gas phase containing high concentration of H_2Te leads to precipitation of Te-Au-Ag minerals and native tellurium.Based on these hypotheses,this paper present a polyphase metallogenic model as follow.During the Devonian,fluids were released from alkaline magmas,which carried ore-forming materials form the surrounding rocks and precipitate the early ores.During the Jurassic-Cretaceous,fluorine-rich fluids exsolved from highly factionated Shangshuiquan granite,which extracted and concentrated Au from the Shuiquangou complex and the Sanggan Group metamorphic rocks,and finally formed the Dongping gold deposit.
基金supported by the major project of“Archaeological China”(Cultural Relics Guarantee[2020]No.444)China University of Geosciences(Wuhan)Gemmological Institute research project CIGTXM-04-S202145.
文摘Jade ware Jue is one of the most fashionable ornament in ancient China from the Neolithic Age to the Han Dynasty.In this study,the remnants of jade ware Jue,from Lijiashan ancient tomb group have been tested and analyzed respectively.The samples through a light etch surface showing glass luster and those with a severe etch surface showing earthen luster.With the aid of X-ray fluorescence Spectrometer(X-ray Fluorescence)test and X-ray diffraction(XRD)detection,the results show that tremolite is not the main mineral of the sample.The main components of the tested samples with light erosion are antigorite and talc,although the main components of the samples with severe erosion are calcite containing calcium carbonate barium.Furthermore,the research on jade ware Jue in Yunnan culture has not only contributed to our further understanding of the jade objects from Yunnan culture and the variety of jade material located in the Yunnan Province.It also provides a basis for the trace of the history and culture through the distribution and evolution of burial hierarchy laws.At the same time,the microscopic observation of the tested samples manifested a residual trace of“string”at the perforation,which has played a critical role in restoring the wearing of jade ware Jue from the tombs of the ancient Yunnan State and the handicraft skills at that time.
基金supported by the National Natural Science Foundation of China(Grant No.41402126)
文摘ObjectiveThis study aims to characterize the occurrences and interior structural features of botryoidal structures from the Sinian Dengying Formation in the Sichuan Basin of Southwestern China, and to shed light on their formation mechanism.
基金This research was supported by the Inter-Governmental S&T Cooperation Project of China(2016YFE0131000)the Research Program of the Ministry of Education,Youth and Sports of the Czech Republic(LTACH-17010).
文摘Wheat yellow dwarf disease(BYD),caused by different species of barley/cereal yellow dwarf viruses(B/CYDVs),is one of the most serious cereal diseases in China and the Czech Republic.Because genetic diversity of the virus directly influences disease epidemiology,the molecular diversity and population structure of 24 Chinese isolates and 16 the Czech Republic isolates of BYDV-PAV from different regions in two countries were analyzed by sequencing their coat protein(CP)and readthrough protein(RTP)domain(RTD)genes and comparing the sequences with six CP and 16 RTP sequences of BYDVPAV isolates from the NCBI database based on nucleotide identity position,phylogenetic analysis and nucleotide diversity.Nucleotide identities between the Chinese and the Czech Republic isolates for the CP were 76.6–99.4%,73.9–89.1%for RTD(ORF5),respectively.The Chinese and the other country isolates showed 74.7–99.2%nucleotide identity for RTP(ORF3+ORF5).Phylogenetic analysis of CP sequences showed that 20 Chinese isolates clustered in the same clade,but the other four Chinese isolates clustered in another clade with the isolates from the Czech Republic and other counties.The population of BYDV-PAV in China had greater nucleotide variability and was more divergent than that in the Czech Republic.Geographical and ecological factors but not hosts might contribute to the population differences in the two countries.
文摘1. To draft and revise the state laws and regulations on standardization, to formulate and implement the policies on standardization; to formulate the national administrative rules on standardization and develop relevant systems; to organize the implementation of laws, rules and systems on standardization:
文摘Preamble The World Trade Organization ("WTO"), pursuant to the approval of the Ministerial Conference of the WTO accorded under Article Ⅻ of the Marrakesh Agreement Establishing the World Trade Organization ("WTO Agreement"), and the People's Republic of China ("China"). Recalling that China was an original contracting party to the General Agreement on Tariffs and Trade 1947. Taking note that China is a signatory to the Final Act Embodying the Results of the Uruguay Round of Multilateral Trade Negotiati...
文摘With large-scale engineering projects being carried out in China, a large number of fossil localities have been discovered and excavated by responsible agencies, but still some important fossils of great value have been removed and smuggled into foreign countries. In the last three years, more than 1345 fossil specimens have been intercepted by Customs in Shenzhen, Shanghai, Tianjin, Beijing and elsewhere, and more than 5000 fossils, most of which are listed as key fossils,
基金sponsored by the Special Fund of Fundamental Scientific Research Operating Expenses for Higher School of Central Government(Projects for creation teams ZY20110101)the Special Fund for the Earthquake Scientific Research of China(201208009)National Natural Science Foundation of China(41074072)
文摘A dense seismic network was installed in the capital region of China in recent years,which makes it possible to resolve the focal mechanisms of small earthquakes. We gathered large earthquake focal mechanisms from the last fifty years and moderate or small earthquake focal mechanisms from between 2002 and 2004,and calculated the present tectonic stress field of the capital region by the grid search method, which weighs different sized earthquakes and can improve the accuracy of the stress field inversion. The analysis of inversion results of different sub-regions shows that the azinuth of the maximum principal compressive stress axis is NE43°- 86° in the Beijing-Zhangjiakou-Datong area,NE38°-86° in the Tangshan area,and NE79°- 81° in the Xingtai area. Inversion results of this paper are similar to previous results,which proves the correctness of the approach. As revealed by the results,the stress field of the capital region is characterized by overall consistency and sub-regional differences. This study provides reference for earthquake mechanism explanation and geodynamics research.
文摘In accordance with the regulations as stipulated in the Pro-visions of the Customs of the People’s Republic of China on Ex-ternal Audit, the Customs officers engaged in external audit shalluse the Certificate of External Audit of the Customs (hereinafterreferred to as Certificate) as of June 5, 1997. The Certificate has ablack leather outer covering and is inlaid inside with a pierced andguilded customs emblem, which consists of the red national em-blem in its upper part, and a key and a truncheon encircled by earsof wheat in its lower part. Put in a leather covering, the Certificateis a card sealed up with plastics, on which there is a bareheadedcolour photo of the holder in the Customs uniform and with a
文摘The Ministerial Conference Decision of 10 NOV.2001 Having regard to paragraph 2 of Article Ⅻ and paragraph 1 of Article Ⅸ of the Marrakesh Agreement Establishing the World Trade Organization, and the Decision—Making Procedures under Articles Ⅸ and Ⅻ of the Marrakesh Agreement Establishing the World Trade Organization agreed by the General Council (WT/L/93). Taking note of the application 0f the People's Republic of China for accession to the Marrakesh Agreement Establishing the World Trade Organiza-
文摘In 1998, facing the complicated and severe domestic and internationaleconomic environment, people of all nationalities, under the correct lead-ership of the Central Party Committee and the State Council, implement-ed a series of policies aiming at increasing input and expanding domesticdemand. Difficulties brought about by the Asian financial crisis and dev-astating flooding were overcome, various reforms were further deepened,and economic growth was promoted, resulting in great achievements at-tracting worldwide attention.
文摘The structural characteristics of Chinese side-opening costumes during the Republic Period of China were investigated.By measuring and recovering the physical structures of side-opening costume objects from the Folk Costumes Biography Museum of Jiangnan University,three structural characteristics were analyzed.These structural characteristics show that most of the side-opening costumes during the Republic Period of China remain traditional Chinese costume structures.The general structural characteristics of side-opening costumes are concluded and the structural cutting methods can inspire current designs as well as provide useful references for contemporary fashion designers.
文摘Zhongshan Road in Nanjing City was formerly known as "Meridian of the Republic of China", signif icant buildings of the Republic of China were mostly distributed along this modern avenue. The diversifi ed styles and types of these buildings refl ect the historical changes of modern Chinese buildings, and also record history of that age. The buildings are intangible cultural heritages of not only Nanjing, but also China. Study on and protection of these buildings is a process of reviewing modern architectural history of China, and also rethinking the inheritance and development of traditional Chinese cultures. In addition, the research promotes the coordinated development of modern urban construction and social cultures.