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| 1 | Palaeoecological and palaeoenvironmental significance of someimportant spores and micro-algae in Quaternary deposits显示文摘Spores of ferns and allied plants, and micro-algae frequently occur in abundance in Quaternary deposits, but their palaeoenvironmental significance is seldom evaluated. This paper presents morphological descriptions of spores of Selaginella sinensis (Desv.) Spring, 1843 (Selaginellaceae) and Ceratopteris cf. thalictroides (L.) Brongniart, 1821 (Parkeriaceae) and the algae Pediastrum boryanum (Turpin) Meneghini, 1840, P. simplex Meyen, 1829, P. integrum N geli, 1849 (all Hydrodictyaceae), Spiniferites Mantell, 1850, emend. Sarjeant, 1970 (Spiniferitaceae) and Concentricystes Rossignal, 1962, emend. Jiabo, 1978 (systematic position unclear), and discusses their occurrence in mostly Quaternary sedimentary successions. All are closely associated with aquatic habitats. Extant Selaginella sinensis often colonizes fairly wet hillsides and gaps between rocks, and shady sides of ravines and slopes; it is also found within thickets of trees and shrubs (boscages) and in forests with calcareous soils. Ceratopteris thalictroides, Pediastrum and Concentricystes inhabit freshwater lakes and both natural and artificial wetlands, such as paddy fields and ditches. Spiniferites is a salt-water genus and usually associated with the marine realm. Fossil and subfossil representatives of all of these taxa can be useful proxies of biodiversity and, therefore, also important for determining environmental conditions during the Quaternary period. | TANG LingYu MAO LiMi Lü XinMiao MA QingFeng ZHOU ZhongZe YANG ChunLei KONG ZhaoChen BATTEN David J | 2013 | Chinese Science Bulletin2013，58，25： | 9 |
| 2 | Pollen-inferred Holocene vegetation and climate histories in Taro Co,southwestern Tibetan Plateau显示文摘A 310-cm-long sediment core,covering the last10,200 years,was collected from Taro Co on the southwestern Tibetan Plateau and analyzed for pollen,grain size and total inorganic carbon content.The pollen data showed that vegetation changed from alpine steppe to alpine meadow during 10,200–8,900 cal a BP,to alpine steppe dominated by Artemisia during 8,900–7,400 cal a BP,to alpine meadow during 7,400–3,300 cal a BP and to alpine steppe after 3,300 cal a BP.Correspondingly,the pollen,grain size and total inorganic carbon content results revealed climatic change in this area over four stages.The initial stage was from 10,200 to 8,900 cal a BP,during which the climate changed from cold-dry to warm-humid.The second stage(8,900–7,400 cal a BP)was characterized by a warm and dry climate.However,at approximately7,400 cal a BP,the climate began to become cold and humid,which continued until 3,300 cal a BP.The last stage,from 3,300 cal a BP to present,was characterized as cold and increasingly arid.Climatic events of the early and mid-late Holocene showed that the area was significantly affected by the westerlies.However,the mid-Holocene climate in Taro Co was controlled by the Indian monsoon.The mid-late Holocene depositional environment record of Taro Co was very important to further elaborate the degree of influence by the westerlies or Indian monsoon. | Qingfeng Ma Liping Zhu Xinmiao L Yun Guo Jianting Ju Junbo Wang Yong Wang Lingyu Tang | 2014 | Chinese Science Bulletin2014，59，31： | 7 |
| 3 | Effect of wheat germ agglutinin density on cellular uptake and toxicity of wheat germ agglutinin conjugated PEG-PLA nanoparticles in Calu-3 cells显示文摘 | Yehong S Jie C Qingfeng L | 2011 | International Journal of Pharmaceutics2011，413，1： | 1 |
| 4 | First-principles investigation on initial stage of 2H-SiC(001) surface oxidation显示文摘We present comprehensive first-principles calculations on the initial stages of SiC oxidation by atomic oxygen on the 2H-SiC(001) surface. In order to study the kinetics of oxygen incorporation at the 2H-SiC(001) surface, we investigated adsorption and diffusion of oxygen atoms and SiO2 nucleation. The adsorption sites, corresponding to the local minima of the potential energy surface (PES) for iso-lated adatoms, were identified through a comparative study of the adatom binding energy at different locations. We found that the Bridge (siloxane) site is preferred over other adsorption sites. There is no energy barrier at 0K for oxygen insertion into this site. The diffusion energy barriers that the adatom has to overcome when jumping between two adsorption sites were calculated. The premises of silica nucleation were investigated by calculating the modifications of the oxygen atom binding energy due to the interaction with neighboring adatoms. | WANG JunJie ZHANG LiTong ZENG QingFeng VIGNOLES L Gerard GUETTE Alain | 2009 | Chinese Science Bulletin2009，54，9： | 1 |
| 5 | Aluminium as anode for energy storage and conversion: a review显示文摘 | Qingfeng L Niels J B | 2002 | J Power Sources2002，110，1： | 1 |
| 6 | Elevated serum RBP4 is as- sociated with insulin resistance in women with polycystic ovary syn- drome 显示文摘 | Weiping L Qingfeng C Shikun M | 2006 | Endocrine2006，30，3： | 1 |
| 7 | Proton conductivity of phosphoric acid doped polybenzimidazole and its compos ites with inorganic proton conductors 显示文摘 | RONGHUAN H QINGFENG L GANG X | 2003 | J Membr Sci2003，226，12： | 1 |
| 8 | Aluminium as anode for energy storage and conversion:a review显示文摘 | Qingfeng L NielsJ B | 2002 | J Power Sources2002，110，1： | 1 |
| 9 | Transplanted endothelial progenitor cells increase neo-vascularisation of rat pre-fabricated flaps 显示文摘 | Tao Z QingFeng L | 2010 | Plast Reconstr Aesthetic Surg2010，63，： | 1 |
| 10 | Elevated serum RBP4 is associated with insulin resistance in women with polycystic ovary syndrome 显示文摘 | Weiping L Qingfeng C Qifu L | 2006 | Endocrine2006，30，3： | 1 |
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