A new somphospondylan sauropod （Dinosauria, Titanosauriformes）： Gannansaurus sinensis gen. et sp. nov. from the Late Cretaceous Nanxiong Formation of Ganzhou Basin, Jiangxi Province of southern China is erected bas...A new somphospondylan sauropod （Dinosauria, Titanosauriformes）： Gannansaurus sinensis gen. et sp. nov. from the Late Cretaceous Nanxiong Formation of Ganzhou Basin, Jiangxi Province of southern China is erected based on one nearly complete dorsal vertebra and a mid-caudal vertebra. It is characterized by two centroprezygapophyseal lamina fossae; large, square-shaped concavity formed by centroprezygapophyseal lamina and dorsal margin of the centrum; large infraparapophyseal fossa; three openings present within the large lateral concavity, which occupy 65% length of the centrum; the posterior centroparapophyseal lamina （PCPL） and the anterior centroparapophyseal lamina （ACPL） weakly developed; the posterior centrodiapophyseal lamina （PCDL） separated by an infradiapophyseal fossa into two branches dorsally; parapophyseal and diapophyseal laminae cross to form ＂K＂ configuration. It shares some characters with the Early Cretaceous form-Euhelopus, indicating that it is more closely related to Euhelopus rather than to other titanosauriform sauropods. This means Gannansaurus may have a close phylogenetic relationship with Euhelopus.展开更多
Ganzhou District is an oasis city in the Zhangye Municipality of Gansu Province, China. Based on multi-temporal TM and ETM satellite remote sensing data in 1985, 1996, 2000, and 2012, and by using corrected figures of...Ganzhou District is an oasis city in the Zhangye Municipality of Gansu Province, China. Based on multi-temporal TM and ETM satellite remote sensing data in 1985, 1996, 2000, and 2012, and by using corrected figures of land use status over the same periods, the spatial area of Ganzhou District since 1985 was extracted with statistical methods, and urban spatial expansion was measured by quantitative research methods. The characteristics of spatial expansion of Ganzhou District were analyzed by urban expansion rate, expansion intensity index, compactness, fractal dimension, and the city center shift method. The results showed that the built-up area of Ganzhou District increased by 3.46 times during 1985-2012. The expansion in 1985 1996 was slow, during 1996 2000 it was rapid, and during 2000-2012 it was at a high speed. This city mainly expanded to the northeast and northwest. Government decision making had a decisive influence on urban expansion. Initially the expansion was uniform, but later the local tfansportation, economy, resources, population, and national policies factors had an obvious influence on urban expansion.展开更多
Ganzhou Orange Industrial Clusters （GOIC for short） is mainly characterized as follows. （1）The Government＇s driving force is the key factor for the formation and development of GOIC; （2）the interaction between ...Ganzhou Orange Industrial Clusters （GOIC for short） is mainly characterized as follows. （1）The Government＇s driving force is the key factor for the formation and development of GOIC; （2）the interaction between market and industry; （3）the specific geography and natural resources act as a carrier; （4）with a strong sense of innovation; （5）it is still at the early stage of development, with a certain high cost.展开更多
A 3000-ton rare earth metal alloy project of Ganzhou Hengyuan Technology Co., Ltd. got approved recently. The project is located in Xunwu Industrial Park and it is a new project. Products of the project includes didym...A 3000-ton rare earth metal alloy project of Ganzhou Hengyuan Technology Co., Ltd. got approved recently. The project is located in Xunwu Industrial Park and it is a new project. Products of the project includes didymium alloy, GdFe alloy, DyFe alloy and HoFe alloy produced by the purchased didymium oxide, gadolinium oxide, dysprosium oxide and holmium oxide or didymium fluoride, gadolinium fluoride, dysprosium fluoride and holmium fluoride through mixing, electrolytic furnace pretreatment, molten salt electrolysis, casting and other processes. The alkaline neutralization precipitated slag and water spray precipitated slag produced in the production process will be dried by electric furnace and crushed by ramon mill for comprehensive reutilization. After the completion of the project, the annual output of rare earth alloys will be 3,000 tons.展开更多
In recent years,it has been demonstrated that thelow-level jet streams(LLJs)developed in thesouth of the Meiyu(Baiu)front play a critical role inthe overseas migrations of the planthoppers intoJapan and Korea. However...In recent years,it has been demonstrated that thelow-level jet streams(LLJs)developed in thesouth of the Meiyu(Baiu)front play a critical role inthe overseas migrations of the planthoppers intoJapan and Korea. However, the involement of theLLJs during the process of sequential displacements展开更多
基金supported by the Natural Science Foundation of China (41272022, 90914003)
文摘A new somphospondylan sauropod （Dinosauria, Titanosauriformes）： Gannansaurus sinensis gen. et sp. nov. from the Late Cretaceous Nanxiong Formation of Ganzhou Basin, Jiangxi Province of southern China is erected based on one nearly complete dorsal vertebra and a mid-caudal vertebra. It is characterized by two centroprezygapophyseal lamina fossae; large, square-shaped concavity formed by centroprezygapophyseal lamina and dorsal margin of the centrum; large infraparapophyseal fossa; three openings present within the large lateral concavity, which occupy 65% length of the centrum; the posterior centroparapophyseal lamina （PCPL） and the anterior centroparapophyseal lamina （ACPL） weakly developed; the posterior centrodiapophyseal lamina （PCDL） separated by an infradiapophyseal fossa into two branches dorsally; parapophyseal and diapophyseal laminae cross to form ＂K＂ configuration. It shares some characters with the Early Cretaceous form-Euhelopus, indicating that it is more closely related to Euhelopus rather than to other titanosauriform sauropods. This means Gannansaurus may have a close phylogenetic relationship with Euhelopus.
基金supported by a project of the National Natural Science Foundation of China(Grant No.41271133)the improvement plan of scientific research ability in Northwest Normal University(NWNU-LKQN-13-10)Open-ended fund of State Key Laboratory of Cryosphere Sciences,Chinese Academy of Sciences(SKLCS-OP-2014-11)
文摘Ganzhou District is an oasis city in the Zhangye Municipality of Gansu Province, China. Based on multi-temporal TM and ETM satellite remote sensing data in 1985, 1996, 2000, and 2012, and by using corrected figures of land use status over the same periods, the spatial area of Ganzhou District since 1985 was extracted with statistical methods, and urban spatial expansion was measured by quantitative research methods. The characteristics of spatial expansion of Ganzhou District were analyzed by urban expansion rate, expansion intensity index, compactness, fractal dimension, and the city center shift method. The results showed that the built-up area of Ganzhou District increased by 3.46 times during 1985-2012. The expansion in 1985 1996 was slow, during 1996 2000 it was rapid, and during 2000-2012 it was at a high speed. This city mainly expanded to the northeast and northwest. Government decision making had a decisive influence on urban expansion. Initially the expansion was uniform, but later the local tfansportation, economy, resources, population, and national policies factors had an obvious influence on urban expansion.
文摘Ganzhou Orange Industrial Clusters （GOIC for short） is mainly characterized as follows. （1）The Government＇s driving force is the key factor for the formation and development of GOIC; （2）the interaction between market and industry; （3）the specific geography and natural resources act as a carrier; （4）with a strong sense of innovation; （5）it is still at the early stage of development, with a certain high cost.
文摘A 3000-ton rare earth metal alloy project of Ganzhou Hengyuan Technology Co., Ltd. got approved recently. The project is located in Xunwu Industrial Park and it is a new project. Products of the project includes didymium alloy, GdFe alloy, DyFe alloy and HoFe alloy produced by the purchased didymium oxide, gadolinium oxide, dysprosium oxide and holmium oxide or didymium fluoride, gadolinium fluoride, dysprosium fluoride and holmium fluoride through mixing, electrolytic furnace pretreatment, molten salt electrolysis, casting and other processes. The alkaline neutralization precipitated slag and water spray precipitated slag produced in the production process will be dried by electric furnace and crushed by ramon mill for comprehensive reutilization. After the completion of the project, the annual output of rare earth alloys will be 3,000 tons.
文摘In recent years,it has been demonstrated that thelow-level jet streams(LLJs)developed in thesouth of the Meiyu(Baiu)front play a critical role inthe overseas migrations of the planthoppers intoJapan and Korea. However, the involement of theLLJs during the process of sequential displacements
