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    题名 作者 年代 出处 被引量
1The Ferric Reducing Ability of Plasma (FRAP) as a Measure of “Antioxidant Power”: The FRAP Assay显示文摘Iris F.F. Benzie J.J. Strain 1996Analytical Biochemistry1996,,1:8
2Effects of temperature and thermally-induced microstructure change on hydraulic conductivity of Boom Clay显示文摘Boom Clay is one of the potential host rocks for deep geological disposal of high-level radioactive nuclear waste in Belgium. In order to investigate the mechanism of hydraulic conductivity variation under complex thermo-mechanical coupling conditions and to better understand the thermo-hydromechanical(THM) coupling behaviour of Boom Clay, a series of permeability tests using temperaturecontrolled triaxial cell has been carried out on the Boom Clay samples taken from Belgian underground research laboratory(URL) HADES. Due to its sedimentary nature, Boom Clay presents acrossanisotropy with respect to its sub-horizontal bedding plane. Direct measurements of the vertical(Kv)and horizontal(Kh)hydraulic conductivities show that the hydraulic conductivity at 80℃ is about 2.4 times larger than that at room temperature(23℃), and the hydraulic conductivity variation with temperature is basically reversible during heatingecooling cycle. The anisotropic property of Boom Clay is studied by scanning electron microscope(SEM) tests, which highlight the transversely isotropic characteristics of intact Boom Clay. It is shown that the sub-horizontal bedding feature accounts for the horizontal permeability higher than the vertical one. The measured increment in hydraulic conductivity with temperature is lower than the calculated one when merely considering the changes in water kinematic viscosity and density with temperature. The nuclear magnetic resonance(NMR) tests have also been carried out to investigate the impact of microstructure variation on the THM properties of clay. The results show that heating under unconstrained boundary condition will produce larger size of pores and weaken the microstructure. The discrepancy between the hydraulic conductivity experimentally measured and predicted(considering water viscosity and density changes with temperature) can be attributed to the microstructural weakening effect on the thermal volume change behaviour of Boom Clay. Based on the experimental results, a hydraulic conductivity evolution model is proposed and then implemented in ABAQUS. Three-dimensional(3D) numerical simulation of the admissible thermal loading for argillaceous storage(ATLAS) Ⅲ in situ heating test has been conducted subsequently, and the numerical results are in good agreement with field measurements.W.Z. Chen Y.S. Ma H.D. Yu F.F. Li X.L. Li X. Sillen 2017Journal of Rock Mechanics and Geotechnical Engineering2017,9,3:7
3周文中的早期创作显示文摘若要对中国音乐获得一个概括的了解,需从两方面入手研究:其一为作曲家生平,其二是中国的哲学思想。出于深入理解周文中音乐的目的,我们必须探其作品与中国传统音乐的渊源关系,那么下文所阐述的有关中国音乐与哲学思想的论题则成为一个必要的前提,这无疑为进一步真正...F.F.费利希阿诺 毕明辉 1998中央音乐学院学报1998,,3:5
4用两段细粒反浮选法处理佛罗里达含白云石的磷酸盐砾石显示文摘应用两段细粒反浮选法处理美国佛罗里达高白云石含量的磷酸盐砾石.在本研究中,将含白云石的磷酸盐砾石样品磨至-150 μm,以使磷酸盐矿物单体解离,保证获得最高P2O5品位和回收率的磷精矿.在白云石优先浮选中,用选择性的脂肪酸作白云石的捕收剂,用H3PO4/H2SO4混合物(2:1)作为磷酸盐矿物的抑制剂和pH调整剂,浮选pH为5~5.5.对富含磷酸盐的白云石浮选槽内产品进行分级.再用脂肪胺从+37μm粗粒级中反浮选二氧化硅,得到的泡沫产品为抛弃的硅石尾矿.胺浮选的槽内产品与白云石浮选槽内产品的-37μm细粒级合并为磷精矿.当给矿含26%P2O5和2.2%MgO时,获得的最终磷精矿含31.6%P2O5和0.8%MgO,P2O5总回收率为92%.研究了pH和捕收剂用量对白云石浮选效率的影响.用浮选速率模型评价了两种脂肪酸捕收剂的效果.这个两段细粒反浮选法也可有效地用于加工来自美国中佛罗里达不同产地的高含量白云石的磷酸盐砾石.F.F.彭 李长根 崔洪山 2005国外金属矿选矿2005,42,10:4
5The Ferric Reducing Ability of Plasma (FRAP) as a Measure of “Antioxidant Power”: The FRAP Assay显示文摘Iris F.F. Benzie J.J. Strain 1996Analytical Biochemistry1996,,1:3
6Electrical Properties of Li-doped P-type ZnO Ceramics显示文摘Li-doped p-type ZnO ceramics were prepared by conventional methods according to the chemical formula Zn1-xLixO2 where x=0.5, 1.0, 1.5 and 2.0 mole fraction, respectively. The crystal structures of the prepared samples were studied by X-ray diffraction analysis. The dielectric properties (including dielectric constant ε and dielectric loss ε ) and dc-electrical conductivity [σ(Ω-1·cm-1)] were investigated. The dielectric constant ε was sharply decreased at the low frequency range and independent on frequency at high frequency range. Otherwise, the dielectric loss ε varied with frequency and showed absorption peak located from 200 Hz to 4 kHz and moved to higher frequency as the concentration of Li+ doped increased. It was found that dcelectrical conductivity logσ varied from -9 to ?5 and the energy gap width were calculated by using Arrhenius equation. The p-type conductivity of Li-doped ZnO may be attributed to the formation of a LiZn-Lii donor complex, which is limited by reducing the amount of Lii.A.H. Salama F.F. Hammad 2009Journal of Materials Science & Technology2009,25,3:2
7Transmission pathway of Helicobacter pylori : Does food play a role in rural and urban areas?显示文摘F.F. Vale J.M.B. Vítor 2010International Journal of Food Microbiology2010,,1:2
8MR damper and its application for semi-active control of vehicle suspension system显示文摘G.Z. Yao F.F. Yap G. Chen W.H. Li S.H. Yeo 2002Mechatronics2002,,7:1
9The Ferric Reducing Ability of Plasma (FRAP) as a Measure of “Antioxidant Power”: The FRAP Assay显示文摘Iris F.F. Benzie J.J. Strain 1996Analytical Biochemistry1996,,1:1
10Thermodynamics of Sr–Mg vermiculite exchange and the effect of PVA on Mg release显示文摘W.K. Mekhamer F.F. Assaad 1999Thermochimica Acta1999,,1:1
11野香草在胰腺癌化疗与疼痛治疗中的应用潜力Hartel M. Di Mola F.F. Selvaggi F. H.Friess 陈瑜 2006世界核心医学期刊文摘(胃肠病学分册)2006,0,10:1
12Effect of Season and Exposure to Heat Stress on Oocyte Competence in Holstein Cows 1显示文摘Y.M. Al-Katanani F.F. Paula-Lopes P.J. Hansen 2002Journal of Dairy Science2002,,2:1
13Effect of rice wax on water vapour permeability and sorption properties of edible pullulan films显示文摘F.F. Shih K.W. Daigle E.T. Champagne 2011Food Chemistry2011,,1:1
14Biologically derived water soluble conducting polyaniline显示文摘W. Liu A. Anagnostopoulos F.F. Bruno K. Senecal J. Kumar S. Tripathy L. Samuelson 1999Synthetic Metals1999,,1:1
15Lethal invasive mucormycosis: case report and recommendations for treatment显示文摘Noel F.F. Ribeiro Gary C.S. Cousin Godfrey E. Wilson David M. Butterworth Robert T.M. Woodwards 2001International Journal of Oral & Maxillofacial Surgery2001,,2:1
16American society of radiation oncology recommendations for documenting intensity-modulated radiation therapy treatments显示文摘IMRT Documentation Working Group Holmes T Das R Low D Yin F.F. Balter J. 0,,:1
17The concentrations of culturable microorganisms in relation to particulate matter in urban air显示文摘D. Haas H. Galler J. Luxner G. Zarfel W. Buzina H. Friedl E. Marth J. Habib F.F. Reinthaler 2013Atmospheric Environment2013,,:1
18查看详情显示文摘Yuan K.D Wu J.J Liu M.L Zhang L.L. Xu F.F. Chen L.D. Huang F.Q 0,,13:1
19Relative reducts in consistent and inconsistent decision tables of the Pawlak rough set model显示文摘D.Q. Miao Y. Zhao Y.Y. Yao H.X. Li F.F. Xu 2009Information Sciences2009,,24:1
20Optimization of mass concrete construction using genetic algorithms显示文摘Eduardo M.R. Fairbairn Marcos M. Silvoso Romildo D. Toledo Filho José L.D. Alves Nelson F.F. Ebecken 2003Computers and Structures2003,,2:1
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