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13篇 您的检索式:作者名="Feng Dingwu"
    题名 作者 年代 出处 被引量
1Zircon U-Pb Ages and Hf Isotopes of Neoproterozoic Meta-Igneous Rocks in the Liansandao Area,Northern Sulu Orogen,Eastern China,and the Tectonic Implications显示文摘The Sulu Orogen preserves the Neoproterozoic tectonic-magmatic events,corresponding to the breaking up of the Rodinia supercontinent.The ages and petrogenesis of meta-igneous rocks in the Liansandao area in the northern Sulu Orogen are not well-constrained.This study reports zircon U-Pb ages and Hf isotopes of these rocks from the Liansandao area.Three meta-igneous rock samples give similar weighted mean 206 Pb/238 U ages of 744±11,767±12,and 762±15 Ma,respectively,indicating the Neoproterozoic crystallization ages.These rocks formed coevally with the Wulian and Yangkou intrusions that located along the Yantai-Qingdao-Wulian fault zone.The Neoproterozoic ages indicate that the meta-igneous rocks from the Liansandao area have affinity to the Yangtze Block.The three samples haveεHf(t)values of-7.2–-10.5,-6.0–-17.5,and-6.8–-12.0,respectively.These negativeεHf(t)values indicate a primarily crustal source.However,the widely variousεHf(t)values that are higher than the continental crust,suggesting magma mixing between mantle-derived materials and the continental crust or source heterogeneity.Combined with the Hf model ages and geochemical characteristics,the monzodiorite(sample LSD-2)is most likely to be mantle-derived magma then interacted with ancient continental crust,and the granitic protolith(samples LSD-1 and LSD-3)in the Liansandao area might derive from the re-melting of a Paleoproterozoic continental crust at^750 Ma,resulting from the upwelling and underplating of mantle-derived magma formed in an extensional setting due to the break-up of the Rodinia supercontinent.Zhaojun Song Huimin Liu Fanxue Meng Xingyu Yuan Qiao Feng Dingwu Zhou Juan Ramon Vidal Romani Hongbo Yan 2019Journal of Earth Science2019,30,6:4
2Geopolymers for immobilization of Cr6+,Cd2+and Pb2+显示文摘Zhang Jianguo John L Provis Dingwu Feng 2008Journal of Hazardous Materials2008,157,2:1
3The role of sulfide in the immobilization of Cr(Ⅵ)in fly ash geopolymers显示文摘Zhang Jianguo John L Provis Dingwu Feng 2008Cement and Concrete Research2008,38,5:1
4The role of sulfide in the immobilization of Cr(VI) in fly ash geopolymers显示文摘Jianguo Zhang John L. Provis Dingwu Feng Jannie S.J. van Deventer 2008Cement and Concrete Research2008,,5:1
5Geopolymers for immobilization of Cr^6+, Cd^2+, and Pb^2+显示文摘Jianguo Zhang John L Provis Dingwu Feng 2008Journal of Hazardous Materials2008,157,:1
6Geopolymers for immobilization of Cr6+,Cd2+,and Pb2+显示文摘Zhang Jiangguo Provis J L Feng Dingwu 2008Journal of Nucleear Materials2008,157,23:1
7COMPREHENSIVE UTILIZATION OF TALLINGS FROM A LEAD-ZINC MILL显示文摘ThetailingsfromHuangyanLeadandZIncMilLmainlycontainsquartz,mica,illiteandaluminousminerals,whichisfullofpromisetobeusedforrawporcelainmaterialtosubstitutefeldspar,butitsFe2O3andMnOcontentare6.66%and7.37%respectively,muchhigherthanthefixedlevel(Fe2O3+MnO<1.5%).Byusingmagneticseparationtechnique,theFe2O3andMnOcontentcanbereducedto1.05%and0.42%respectively.Theprocessedtailingsforporcelainmaterialcanmakeporcelainformationtemperaturereducebyabout100℃.Moreverthecomprehensiveuti-lizationofthePbandZntailingscanavo?Feng Dingwu, Chen Jin, Peng Shiying, Sun Zhongyuan (Department of mineral Engineering,Central South University of Technology,Changsha 410083) 1996西部探矿工程1996,8,5:0
8APPROACH TO A NEW TYPE OF PERMANENT HIGH GRADIENT MAGNETIC SEPARATOR (PHGMS)显示文摘The recent development of rare-earth permanent magnets has impacted the field of magnetic separation. The permanent magnets technology led to the advent of various magnetic separators particularly designed for application in mineral processing. In this Feng Dingwu Chen Jin Sun Zhongyuan Peng Shiying (Department of Mineral Engineering, Central South University of Technology, Changsha, 410083, China) 1995Journal of Central South University1995,7,1:0
9Differences in the effects and action modes of gut commensals against dextran sulfate sodium-induced intestinal inflammation显示文摘Inflammatory bowel disease(IBD)is a complex relapsing inflammatory disease in the gut and is driven by complicated host-gut microbiome interactions.Gut commensals have shown different functions in IBD prevention and treatment.To gain a mechanistic understanding of how different commensals affect intestinal inflammation,we compared the protective effects of 6 probiotics(belonging to the genera Akkermansia,Bifidobacterium,Clostridium,and Enterococcus)on dextran sulfate sodium(DSS)-induced colitis in mice with or without gut microbiota.Anti-inflammatory properties(ratio of interleukin(IL)-10 and IL-12)of these strains were also evaluated in an in vitro mesenteric lymph nodes(MLN)co-culture system.Results showed that 4 probiotics(belonging to the species Bifidobacterium breve,Bifidobacterium bifidum,and Enterococcus faecalis)can alleviate colitis in normal mice.The probiotic strains differed in regulating the intestinal microbiota,cytokines(IL-10,IL-1βand interferon(IFN)-γ),and tight junction function(Zonulin-1 and Occludin).By constrast,Akkermansia muciniphila AH39 and Clostridium butyricum FHuNHHMY49T1 were not protective.Interestingly,B.breve JSNJJNM2 with high anti-inflammatory potential in the MLN model could relieve colitis symptoms in antibiotic cocktail(Abx)-treated mice.Meanwhile,E.faecalis FJSWX25M1induced low levels of cytokines in vitro and showed no beneficial effects.Therefore,we provided insight into the clinical application of probiotics in IBD treatment.Dingwu Qu Zhennan Gu Saisai Feng Leilei Yu Fengwei Tian Hao Zhang Wei Chen Qixiao Zhai 2024Food Science and Human Wellness2024,13,3:0
10CLФ500 vubrating and pulsating high dradient mag-netic separator and its appl显示文摘CLΦ500VIBRATINGANDPULSATINGHIGHGKADIENTMAGNETICSEPARATORANDITSAPPLICATOPNSFengDingwu,PengShiying,SunZhongyuan,ChenJinDept.ofM...Feng Dingwu,Peng Shiying,Sun Zhongyuan,Chen Jin Dept.of Mineral Engineering,CSUT,Changsha 410083,China 1995西部探矿工程1995,7,5:0
11MECHANlSM OF MEDIUM INTENSITY AND PERMANENT MAGNETISMHI GHGKADIENT MAGNETIC SEPARATION显示文摘MECHANlSMOFMEDIUMINTENSITYANDPERMANENTMAGNETISMHIGHGKADIENTMAGNETICSEPARATIONPengShiying,FengDingwu,SunZhongyuan,CheJinDept.o...Peng Shiying,Feng Dingwu,Sun Zhongyuan,Che Jin Dept .of Mineral Engineerig,CSUT,Changsha 410083,China 1995西部探矿工程1995,7,5:0
12Species-or genus-dependent immunostimulatory effects of gut-derived potential probiotics显示文摘The immune regulatory effects of probiotics have been widely recognized to be strain-specific.However,it is unknown if there is a species-or genus-dependent manner.In this study,we use an in vitro mesenteric lymph node(MLN)model to systematically evaluate the immunostimulatory effects of gut-derived potential probiotics.The results exhibit an obvious species or genus consensus immune response pattern.RNA-seq shows that T cell-dependent B cell activation and antibody responses may be inherent to this model.Of the five tested genera,Akkermansia spp.and Clostridium butyrium directly activate the immune response in vitro,as indicated by the secretion of interleukin-10.Bifidobacterium spp.and Bacteroides spp.activate immune response with the help of stimuli(anti-CD3 and anti-CD28 antibodies).Lactobacillus spp.blunt the immune response with or without stimuli.Further investigations show that the cell surface protein of A.muciniphila AH39,which may serve as a T cell receptor cognate antigen,might evoke an in vitro immune activation.In vivo,oral administration of A.muciniphila AH39 influences the proportion of T regulatory cells(Tregs)in MLNs and the spleen under homeostasis in both specific pathogen-free and germ-free mice.All these findings indicate the distinct effects of different genera or species of potential gut-derived probiotics on intestinal and systemic immunity.Saisai Feng Shunhe Wang Dingwu Qu Jing Li Fengwei Tian Leilei Yu Hao Zhang Jianxin Zhao Wei Chen Qixiao Zhai 2023Journal of Genetics and Genomics2023,50,10:0
13DEVELOPMENT OF BELT TYPE MATRIX PERMANENT HIGH GRADIENT MAGNETIC SEPARATOR显示文摘DEVELOPMENTOFBELTTYPEMATRIXPERMANENTHIGHGRADIENTMAGNETICSEPARATOR¥LongWeiyang;PengLiang;LiShunrong;FengDingwu;PengShiying(Ins...Long Weiyang Peng Liang Li Shunrong Feng Dingwu Peng Shiying(Institute of Mineral Engineering,Central South University of Technology,Changsha 410083) 1996中国有色金属学会会刊:英文版1996,6,4:0
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