With the trust and support by WFO and its members,Foundry Institution of Chinese Mechanical Engineering Society (FICMES) will host the 69th World Foundry Congress (WFC2010). We cordially invite you to participate ... With the trust and support by WFO and its members,Foundry Institution of Chinese Mechanical Engineering Society (FICMES) will host the 69th World Foundry Congress (WFC2010). We cordially invite you to participate in the 69th WFC to be held on October 16-20,2010,in Hangzhou,China.……展开更多
Intelligence-benefiting acupuncturerefers to the acupuncture-moxibustiontreatment of intellectual disturbances byremoving obstructions in channels andcollaterals,regulating yin and yang,andeliminating pathogenic facto...Intelligence-benefiting acupuncturerefers to the acupuncture-moxibustiontreatment of intellectual disturbances byremoving obstructions in channels andcollaterals,regulating yin and yang,andeliminating pathogenic factors to strengthenthe body resistance,with the effects ofstrengthening the brain,benefiting intelligence,展开更多
INTRODUCTIONThe“nonspecific” inflammatory bowel diseases ,ulcerative colitis and Crohn,s represent a group of heterogeneous inflammatory and ulcerative disases of the small and large intestines of unknown etiology ,...INTRODUCTIONThe“nonspecific” inflammatory bowel diseases ,ulcerative colitis and Crohn,s represent a group of heterogeneous inflammatory and ulcerative disases of the small and large intestines of unknown etiology ,associated with many gastrointestinal and systemic complications .Appearing initially as isolated cases in Great Britain and northern Europe during the 19th and early 20th centuries ,they have steadily increased numerically and geographically and today are recognized worldwide.展开更多
Evaluating anthropogenic impacts on regional vegetation changes during historical time is not only important for a better understanding of the Anthropocene but also valuable in improving the vegetation-climate models....Evaluating anthropogenic impacts on regional vegetation changes during historical time is not only important for a better understanding of the Anthropocene but also valuable in improving the vegetation-climate models.In this study,we analyzed stable isotopes(δ^18O,δ^13C)and trace elements(Mg/Ca,Sr/Ca)of a stalagmite from Huangchao Cave in central Shandong,northern China.230Th and AMS14C dating results indicate the stalagmite deposited during 174BC and AD1810,with a hiatus between AD638 and 1102.Broad similarities of theδ^18O and trace elements in the stalagmite suggest they are reliable precipitation indexes.Theδ^13C of the stalagmite,a proxy of vegetation change,was generally consistent with local precipitation and temperature variations on a centennial-scale before the 15th century.It typically varied from–9.6‰to–6.3‰,indicating climate controlled C3 type vegetation during this period.However,a persistent and marked increasing trend in theδ^13C record was observed since the 15th century,resulting inδ^13C values from–7.7‰to–1.6‰in the next four centuries.This unprecedentedδ^13C change caused by vegetation deterioration cannot be explained by climate change but is fairly consistent with the dramatically increasing population and farmland in Shandong.We suggest that the increasing deforestation and reclamation in central Shandong began to affect vegetation in the mountain region of central Shandong since the 15th century and severely destroyed or even cleared the forest during the 16th–18th century.展开更多
文摘 With the trust and support by WFO and its members,Foundry Institution of Chinese Mechanical Engineering Society (FICMES) will host the 69th World Foundry Congress (WFC2010). We cordially invite you to participate in the 69th WFC to be held on October 16-20,2010,in Hangzhou,China.……
文摘Intelligence-benefiting acupuncturerefers to the acupuncture-moxibustiontreatment of intellectual disturbances byremoving obstructions in channels andcollaterals,regulating yin and yang,andeliminating pathogenic factors to strengthenthe body resistance,with the effects ofstrengthening the brain,benefiting intelligence,
文摘INTRODUCTIONThe“nonspecific” inflammatory bowel diseases ,ulcerative colitis and Crohn,s represent a group of heterogeneous inflammatory and ulcerative disases of the small and large intestines of unknown etiology ,associated with many gastrointestinal and systemic complications .Appearing initially as isolated cases in Great Britain and northern Europe during the 19th and early 20th centuries ,they have steadily increased numerically and geographically and today are recognized worldwide.
基金supported by the National Natural Science Foundation of China(Grant No.41991252)the Strategic Priority Research Program(Grant No.XDB40000000)+4 种基金the International Partnership Program(Grant No.132B61KYSB20170005)of Chinese Academy of Sciencesthe National Natural Science Foundation of China(Grant No.41888101)partly supported by the USA National Science Foundation(Grant Nos.0908792,1211299&1702816 to R.Lawrence EDWARDS and Hai CHENG)the 111 Program of China(Grant No.D19002)the Belt&Road Center for Climate and Environment Studies of IEECAS。
文摘Evaluating anthropogenic impacts on regional vegetation changes during historical time is not only important for a better understanding of the Anthropocene but also valuable in improving the vegetation-climate models.In this study,we analyzed stable isotopes(δ^18O,δ^13C)and trace elements(Mg/Ca,Sr/Ca)of a stalagmite from Huangchao Cave in central Shandong,northern China.230Th and AMS14C dating results indicate the stalagmite deposited during 174BC and AD1810,with a hiatus between AD638 and 1102.Broad similarities of theδ^18O and trace elements in the stalagmite suggest they are reliable precipitation indexes.Theδ^13C of the stalagmite,a proxy of vegetation change,was generally consistent with local precipitation and temperature variations on a centennial-scale before the 15th century.It typically varied from–9.6‰to–6.3‰,indicating climate controlled C3 type vegetation during this period.However,a persistent and marked increasing trend in theδ^13C record was observed since the 15th century,resulting inδ^13C values from–7.7‰to–1.6‰in the next four centuries.This unprecedentedδ^13C change caused by vegetation deterioration cannot be explained by climate change but is fairly consistent with the dramatically increasing population and farmland in Shandong.We suggest that the increasing deforestation and reclamation in central Shandong began to affect vegetation in the mountain region of central Shandong since the 15th century and severely destroyed or even cleared the forest during the 16th–18th century.
