Stegolophodon is an age-informative genus of mammals that had a widespread distribution during the Neogene.This paper reports the discovery of Stegolophodon fossils from the Middle Miocene lower Fotan Formation at the...Stegolophodon is an age-informative genus of mammals that had a widespread distribution during the Neogene.This paper reports the discovery of Stegolophodon fossils from the Middle Miocene lower Fotan Formation at the Zhangpu locality,Fujian Province,China.This discovery represents the first evidence of Neogene proboscidean fossils in southeastern China.The newly found molar materials have low tooth crowns,very straight lophs/lophids,and an indistinct median sulcus.The mesoconelets and posterior cingulum are well-developed,while the second posterior pretrite central conule is significantly reduced.These specimens closely resemble Stegolophodon pseudolatidens in cheek tooth morphology,and can thus be attributed to the same species.This discovery fills a gap in the fossil record of large mammals in this region during the Neogene and provides valuable insights into the evolution of proboscideans and paleoenvironments.展开更多
2006年3月21日至23日，首届LASER．world of Photonics China（LASER China）将在上海新国际博览中心隆重开幕。届时将有国内外100多家展商参展，展会主要分为激光元件、激光设备两大展区，覆盖整个激光、光电子产业链，展会期间还将举...2006年3月21日至23日，首届LASER．world of Photonics China（LASER China）将在上海新国际博览中心隆重开幕。届时将有国内外100多家展商参展，展会主要分为激光元件、激光设备两大展区，覆盖整个激光、光电子产业链，展会期间还将举行多场高质量的激光技术国际研讨会。其中包括：由德国经挤劳工部发起的“中德企业合作洽谈会”，以及与汉诺威激光中心合办的“中德激光技术的现状、趋势与发展研讨会”。展开更多
The 14th World Mining Congress and Exhibition was held from 14th to 18th May in Beijing, capital of China. About 3700 mining specialists, professors, scholars, manufacturers and salesmen of mining equipment companies,...The 14th World Mining Congress and Exhibition was held from 14th to 18th May in Beijing, capital of China. About 3700 mining specialists, professors, scholars, manufacturers and salesmen of mining equipment companies, of which 2700 Chinese delegates, from more than 50展开更多
Under the guidance of Deng Xiao-ping’s strategic think-ing of openning to the outside world, the structure of om-nibearing openness has basically taken shape in China. Follow-
The world heritage is the resource and wealth shared by the people of the world,and it has very important value.With beautiful scenery and splendid culture,China is a country which has a wealth of heritage resources.B...The world heritage is the resource and wealth shared by the people of the world,and it has very important value.With beautiful scenery and splendid culture,China is a country which has a wealth of heritage resources.By 2016,50world heritage sites in China were named the World Natural and Cultural Heritage by the UNESCO including35world culture heritages,11world natural heritages and 4both cultural and natural heritages.This paper summarizes the general situation of the world heritage sites in China,describes protective measures of Chinese world heritage sites,analyzes the exiting problems and then puts forward proposals to further strengthen the protection of world heritages.展开更多
Boehmeria nivea var.strigosa Zeng Y.Wu&Y.Zhao,a new variety of B.nivea(Urticaceae)from Southwest China,is here described based on evidence from morphology and molecular phylogeny.This new variety is mainly charact...Boehmeria nivea var.strigosa Zeng Y.Wu&Y.Zhao,a new variety of B.nivea(Urticaceae)from Southwest China,is here described based on evidence from morphology and molecular phylogeny.This new variety is mainly characterized by its green abaxial leaf blade,partly connate stipules,and densely patent strigose hairs on stems and potioles.The phylogenetic analysis based on rbc L,nrDNA and rbc L+nrDNA datasets,revealed that all individuals of B.nivea var.strigosa formed a monophyletic group.The conservation status of B.nivea var.strigosa is assessed as“Near Threatened”(NT)according to IUCN evaluation criteria.The discovery of this new variety is not only crucial for the taxonomy of ramie,but also provides reference for the exploration and utilization of ramie.展开更多
Currently,China has 32 Earth observation satellites in orbit.The satellites can provide various data such as optical,multispectral,infrared,and radar.The spatial resolution of China Earth observation satellites ranges...Currently,China has 32 Earth observation satellites in orbit.The satellites can provide various data such as optical,multispectral,infrared,and radar.The spatial resolution of China Earth observation satellites ranges from low to medium to high.The satellites possess the capability to observe across multiple spectral bands,under all weather conditions,and at all times.The data of China Earth observation satellites has been widely used in fields such as natural resource detection,environmental monitoring and protection,disaster prevention and reduction,urban planning and mapping,agricultural and forestry surveys,land survey and geological prospecting,and ocean forecasting,achieving huge social benefits.This article introduces the recent progress of Earth observation satellites in China since 2022,especially the satellite operation,data archiving,data distribution and data coverage.展开更多
Mr. President, Ambassador, everyone, ladies and gentlemen,it is a great pleasure to be with you here at Shanghai Institutes for International Studies. Thank you, Mr. President for
日前,《广西植物》正式被波兰《哥白尼索引》(IC)旗下的两个知名数据库哥白尼索引期刊数据库(ICI World of Journals)和哥白尼索引精选数据库(ICI Journals Master List)全文收录,这是该期刊继被瑞典知名数据库(DOAJ)成功收录后的又一...日前,《广西植物》正式被波兰《哥白尼索引》(IC)旗下的两个知名数据库哥白尼索引期刊数据库(ICI World of Journals)和哥白尼索引精选数据库(ICI Journals Master List)全文收录,这是该期刊继被瑞典知名数据库(DOAJ)成功收录后的又一大喜讯。展开更多
Elymus duthiei(Melderis)G.Singh,newly recorded from Xizang,China,is described and illustrated in detail.Morphologically,the species is similar to E.anthosachnoides(Keng)Á.Löve ex B.R.Lu and E.glaberrimus(Ken...Elymus duthiei(Melderis)G.Singh,newly recorded from Xizang,China,is described and illustrated in detail.Morphologically,the species is similar to E.anthosachnoides(Keng)Á.Löve ex B.R.Lu and E.glaberrimus(Keng&S.L.Chen)S.L.Chen but differs from the former in height and diameter of culms,number of nodes,width of leaf blades,and type of trichome and size of spikelets,and from the latter in distribution,height of culms,type of trichome of spikelets,and awn length.Detailed photo plates,descriptions,and distribution data are provided.展开更多
Chrysosplenium fallax Koldaeva,recently discovered and collected in Yanji,Jilin Province,repre-sents a newly recorded species of Saxifragaceae in China.This species,native to the Russian Far East,was first described a...Chrysosplenium fallax Koldaeva,recently discovered and collected in Yanji,Jilin Province,repre-sents a newly recorded species of Saxifragaceae in China.This species,native to the Russian Far East,was first described as a new species in 2021.Based on precise field investigations and specimen examination,we provide a comprehensive description of C.fallax and its seed micromorphology.Phylogenetic analysis based on chloroplast genomes of 45 Chrysosplenium species confirmed the systematic position of C.fallax in Chrysosplenium.Voucher specimens were deposited in the Herbarium of South-Central Minzu University(HSN).展开更多
文摘Stegolophodon is an age-informative genus of mammals that had a widespread distribution during the Neogene.This paper reports the discovery of Stegolophodon fossils from the Middle Miocene lower Fotan Formation at the Zhangpu locality,Fujian Province,China.This discovery represents the first evidence of Neogene proboscidean fossils in southeastern China.The newly found molar materials have low tooth crowns,very straight lophs/lophids,and an indistinct median sulcus.The mesoconelets and posterior cingulum are well-developed,while the second posterior pretrite central conule is significantly reduced.These specimens closely resemble Stegolophodon pseudolatidens in cheek tooth morphology,and can thus be attributed to the same species.This discovery fills a gap in the fossil record of large mammals in this region during the Neogene and provides valuable insights into the evolution of proboscideans and paleoenvironments.
文摘2006年3月21日至23日，首届LASER．world of Photonics China（LASER China）将在上海新国际博览中心隆重开幕。届时将有国内外100多家展商参展，展会主要分为激光元件、激光设备两大展区，覆盖整个激光、光电子产业链，展会期间还将举行多场高质量的激光技术国际研讨会。其中包括：由德国经挤劳工部发起的“中德企业合作洽谈会”，以及与汉诺威激光中心合办的“中德激光技术的现状、趋势与发展研讨会”。
文摘The 14th World Mining Congress and Exhibition was held from 14th to 18th May in Beijing, capital of China. About 3700 mining specialists, professors, scholars, manufacturers and salesmen of mining equipment companies, of which 2700 Chinese delegates, from more than 50
文摘Under the guidance of Deng Xiao-ping’s strategic think-ing of openning to the outside world, the structure of om-nibearing openness has basically taken shape in China. Follow-
文摘The world heritage is the resource and wealth shared by the people of the world,and it has very important value.With beautiful scenery and splendid culture,China is a country which has a wealth of heritage resources.By 2016,50world heritage sites in China were named the World Natural and Cultural Heritage by the UNESCO including35world culture heritages,11world natural heritages and 4both cultural and natural heritages.This paper summarizes the general situation of the world heritage sites in China,describes protective measures of Chinese world heritage sites,analyzes the exiting problems and then puts forward proposals to further strengthen the protection of world heritages.
文摘Boehmeria nivea var.strigosa Zeng Y.Wu&Y.Zhao,a new variety of B.nivea(Urticaceae)from Southwest China,is here described based on evidence from morphology and molecular phylogeny.This new variety is mainly characterized by its green abaxial leaf blade,partly connate stipules,and densely patent strigose hairs on stems and potioles.The phylogenetic analysis based on rbc L,nrDNA and rbc L+nrDNA datasets,revealed that all individuals of B.nivea var.strigosa formed a monophyletic group.The conservation status of B.nivea var.strigosa is assessed as“Near Threatened”(NT)according to IUCN evaluation criteria.The discovery of this new variety is not only crucial for the taxonomy of ramie,but also provides reference for the exploration and utilization of ramie.
文摘Currently,China has 32 Earth observation satellites in orbit.The satellites can provide various data such as optical,multispectral,infrared,and radar.The spatial resolution of China Earth observation satellites ranges from low to medium to high.The satellites possess the capability to observe across multiple spectral bands,under all weather conditions,and at all times.The data of China Earth observation satellites has been widely used in fields such as natural resource detection,environmental monitoring and protection,disaster prevention and reduction,urban planning and mapping,agricultural and forestry surveys,land survey and geological prospecting,and ocean forecasting,achieving huge social benefits.This article introduces the recent progress of Earth observation satellites in China since 2022,especially the satellite operation,data archiving,data distribution and data coverage.
文摘Mr. President, Ambassador, everyone, ladies and gentlemen,it is a great pleasure to be with you here at Shanghai Institutes for International Studies. Thank you, Mr. President for
文摘Elymus duthiei(Melderis)G.Singh,newly recorded from Xizang,China,is described and illustrated in detail.Morphologically,the species is similar to E.anthosachnoides(Keng)Á.Löve ex B.R.Lu and E.glaberrimus(Keng&S.L.Chen)S.L.Chen but differs from the former in height and diameter of culms,number of nodes,width of leaf blades,and type of trichome and size of spikelets,and from the latter in distribution,height of culms,type of trichome of spikelets,and awn length.Detailed photo plates,descriptions,and distribution data are provided.
文摘Chrysosplenium fallax Koldaeva,recently discovered and collected in Yanji,Jilin Province,repre-sents a newly recorded species of Saxifragaceae in China.This species,native to the Russian Far East,was first described as a new species in 2021.Based on precise field investigations and specimen examination,we provide a comprehensive description of C.fallax and its seed micromorphology.Phylogenetic analysis based on chloroplast genomes of 45 Chrysosplenium species confirmed the systematic position of C.fallax in Chrysosplenium.Voucher specimens were deposited in the Herbarium of South-Central Minzu University(HSN).
