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1Zircon SHRIMP U-Pb dating of granites from Dulan and the chronological framework of the North Qaidam UHP belt, NW China显示文摘Zircon SHRIMP dating of granites from Dulan,east segment of North Qaidam UHP belt shows that they are 406.6±3.5 Ma for Yematan-E,407.3±4.3 and 397±6 Ma for Balijiehatan-W,404.5±4.0 and 397.0±3.7 Ma for Shuiwenzhan-N,380.5±5.0 Ma for Shuiwenzhan-S,382.5±3.6 and 372.5±2.8 Ma for Chachagongma.These granites from Dulan represent the products of the third and fourth periods of Paleozoic magmatism in North Qaidam.Geochemically,the granitoids with metalumious to weak peratuminous are quartz diorite,granodiorite,and granite in composition and mainly belong to calc-alkaline series,a few samples to calc or alkali-calc series.The third period of granites is a rock association of granodiorite+granite,with initial 87Sr/86Sr ratios from 0.7082 to 0.7110 and T2DM model ages from 1.41–1.90 Ga;and the fourth period of granites is a rock association of quartz diorite+granodiorite+granite,with initial 87Sr/86Sr ratios from 0.7072 to 0.7091 and T2DM model ages from 1.07–1.38 Ga.Therefore,the third period of granites has higher initial 87Sr/86Sr ratios and T2DM model ages.On the contrary,the fourth period of granites has Nd(t)values from 0.6 to-3.0,higher than that of the third granite with Nd(t)values-3.2 to-9.3.Thus,the data comparison indicates that the third granites may derive from Paleo-proterzoic continental crust with mantle material whereas the fourth granites may derive from the Meso-proterzoic basalt crust with continental material.Combined with regional geology,we thought that the third granites were formed relative to plate exhumation and the fourth granites to delamination of the lithospheric mantle.WU CaiLai GAO YuanHong LI ZhaoLi LEI Min QIN HaiPeng LI MinZe LIU ChunHua Ronald B FROST Paul T ROBINSON Joseph L WOODEN 2014Science China Earth Sciences2014,57,12:21
2EFFECT OF OVERLAPPING TREATMENT ON MICROSTRUCTURE OF LASER-CLAD WC/Ni60A COMPOSITE COATING显示文摘The effect of overlapping treatment on microstructure of laser clad WC/Ni60A composite coating was studied with XRD, SEM, TEM and SAED etc. The results show that during the overlapping treatment the existence of the residual heat and edge angle effect on the substrate has changed the composition and microstructure of the coating by raising the fusion temperature and increasing the dilution degree of the coating.C.Z. Chen 1,2) , X.D. Liu 3) , S.J. Zhang 4) , D.W. Cui 1) , T.Q. Lei 2) and J.H. Yu 1) 1) College of Material Science and Technology, Shandong University of Technology, Jinan 250061, China 2) College of Material Science and T 1999Acta Metallurgica Sinica(English Letters)1999,12,5:6
3Chemical and pharmacological evaluation of Hypericum perforation extracts显示文摘KEY WORDS Hypericum perforation; High pressure liquid chromatography; serotonin uptake inhibitors; tree radicals; antioxidants; hyperforin; hypericin; quercetin; rutinABSTRACTAIM: To determine the concentrations of chemical characteristic to extracts of leaves and flowers of Hypericum perforatnm (St John’s wort) in a number of selected samples and, following chemical characterization, to investigate the effects of these extracts on several pharmacological properties including effects of the extracts on inhibition of 5-hydroxytryptamine (5-HT) uptake and on an-tioxidant properties. METHODS: The samples were analyzed for the presence of characteristic chemicals by high performance liquid chromatography (HPLC) directly coupled to ultraviolet wavelength absorbance and positive or negative mode electrospray mass spectrometric detection. The effects of extracts on 5-HT uptake were determined by quantifying 3H-5-HT incorporation into rat hip-pocampal prisms. Estimates of effects of extracts on free radicalB Duff SLOLEY Liana J URICHUK LING Lei GU Lie-Dong Ronald T COUTTS Peter K T PANG Jacqueline J SHAN 2000Acta Pharmacologica Sinica2000,21,12:2
4Estimation of directions of arrival of multipath signal in CDMA systems 显示文摘Lei Z Lim T J 2000IEEE Trans Commu2000,48,6:2
5Susceptibility to Photoinhibition of Three Deciduous Broadleaf Tree Species with Different Successional Traits Under Various Light Regimes 显示文摘Kital M Lei T T Koike T 2000Plant Cell and Environment2000,23,:2
6The Comparison of PCA and Discrete Rough Set for Feature Extraction of Remote Sensing Image Classification-A Case Study on Rice Classification 显示文摘Lei T C Wan S Chou T Y 2007Computational Geosciences2007,12,1:1
7Supplemental microbial phytase improves bioavailability of dietary zinc to weanling pigs显示文摘 kupk Miller E R ullrey D I Yokoyama M T 1993Nutrition1993,,123:1
8Accuracy enhancement of five-axis CNC machines through real-time error compensation显示文摘Lei W T Hsu Y Y 2003International Journal of Machine Tools and Manufacture2003,43,9:1
9To,z'oplasma gondii immune mapped protein 1 (TglMP1) is a novel vaccine candidate against toxoplasmosis 显示文摘Gu Lei T Yang 1) 2012Vaccine2012,30,22:1
10Discovery of potential bladder cancer biomarkers by comparative urine proteomies and analysis显示文摘Lei T Meng Q Zhang M 2013Clin Genitourin Cancer2013,11,1:1
11Surface effects on the vibrational frequency of double-walled carbon nanotubes using the nonlocal Timoshenko beam model显示文摘Lei X.W Natsuki T Shi J.X Ni Q.Q 0,,:1
12Assessment of heavy metal pollution in surface soils of urban parks in Beijing,China显示文摘Chen T Zheng Y Lei M 0,,:1
13K-automorphism:A general framework for privacy preserving network publication显示文摘Zou Lei Chen Lei 0zsu M T 0,,01:1
14Identification and characterization of a novel Neospora caninum immune mapped protein 1显示文摘CUI X LEI T YANG D Y 2012Parasitology2012,139,8:1
15Root-microbe communication through protein secretion显示文摘De-la-Pea C Lei Z T Watson B S 2008J Biol Chem2008,283,25:1
16Modeling the impacts of biomass burning on air quality in and around Mexico City显示文摘Lei W. Li G. Molina L. T 2013Atmospheric Chemistry and Physics2013,,5:1
17Resveratrol attenuates senescence of adipose-derived mesenchymal stem cells and restores their paracrine effects on promoting insulin secretion of INS-1 cells through Pim-1显示文摘Lei L T Chen J B Zhao Y L 2016Eur Rev Med Pharmacol Sci2016,20,6:1
18Estimation of directions of arrival of muitipath signal in CDMA systems显示文摘Lei Z Lim T J 2000IEEE Trans Commu2000,48,6:1
19Effect of anionic and nonionic surfactants on sorption and miceller solubilization of monocyclic aromatic compounds显示文摘DOONG R LEI W CHEN T 1996Water Science and Technology1996,34,78:1
20A run off-on-ponding method and models for the transient infiltration capability process of sloped soil surface under rainfall and erosion impacts 显示文摘Lei T W Pan Y H Liu H 2006Journal of Hydrology2006,319,:1
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