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3004篇 您的检索式:作者名="HU M H"
    题名 作者 年代 出处 被引量
1激光剥蚀信号在线平滑和去汞装置:原位微区铅同位素准确分析利器显示文摘激光原位微区分析可在微观尺度上完成样品的元素定量分析或同位素组成测定,为研究成岩、成矿物质来源和追踪地壳与地幔演化历史提供了独特的观察视野。但是,激光剥蚀等离子体质谱的一些缺陷阻碍了地质样品的高精度、高空间分辨率分析,比如:剥蚀池的位置效应、低剥蚀速率下信号波动影响、激光剥蚀脉动式信号导致的光谱螺纹效应、高频激光剥蚀造成的元素分馏效应等。为此,一些学者设计了不同规格和样式的激光剥蚀信号平滑装置来克服这些问题。但是,这些信号平滑装置普遍还存在气体吹扫时间过长和降低激光剥蚀信号灵敏度等问题。因此,研制新型的信号平滑装置对改善LA—ICP—MS的数据质量具有重要的意义。Hu Z Zhang W Liu Y Gao S Li M Zong K Chen H Hu S 刘勇胜 2015矿物岩石地球化学通报2015,34,4:114
2Sol-gel derived HA/TiO_2 double coatings on Ti scaffolds for orthopaedic applications显示文摘Hydroxyapatite/titania (HA/TiO2) double layers were coated onto Ti scaffolds throughout for orthopaedic applications by sol-gel method. Differential scanning calorimetry (DSC), thermogravimetric analysis (TG) and X-ray diffractometry (XRD) were used for the characterisation of the phase transformations of the dried gels and coated surface structures. Scanning electron microscope (SEM) equipped with energy dispersive spectrometry (EDS) was used for the observation and evaluation of the morphology and phases of the surface layers and for the assessment of the in vitro tests. The in vitro assessments were performed by soaking the HA/TiO2 double coated samples into the simulated body fluid (SBF) for various periods. The TiO2 dipping-coating method at a speed of 12 cm/min, followed by a heat treatment at 600 ℃ for 20 min. The HA la lyaeyre wr wasa ssu cbosaetqeude bnytl ya dipping-coated on the outer surface at the same speed and then heat-treated at difference temperatures. The results indicat that the HA phase begins to crystallize after a heat treatment at 560 ℃. The crystallinity increases obviously at 760 ℃. SEM observations find no delamination or crack at the interfaces of HA/TiO2 and TiO2/Ti. The HA/TiO2 coated Ti scaffolds displays excellent bone-like apatite forming ability when it is soaked into SBF. Ti scaffolds after HA/TiO2 double coatings can be anticipated as promising implant materials for orthopaedicXU W HU W Y LI M H MA Q Q P. D. HODGSON WEN C E 2006中国有色金属学会会刊:英文版2006,16,B01:5
3Terahertz Semiconductor Quantum Well Devices显示文摘For eventually providing terahertz science with compact and convenient devices,terahertz (1~10THz) quantum-well photodetectors and quantum-cascade lasers are investigated.The design and projected detector performance are presented together with experimental results for several test devices,all working at photon energies below and around optical phonons.Background limited infrared performance (BLIP) operations are observed for all samples (three in total),designed for different wavelengths.BLIP temperatures of 17,13,and 12K are achieved for peak detection frequencies of 9.7THz(31μm),5.4THz(56μm),and 3.2THz(93μm),respectively.A set of THz quantum-cascade lasers with identical device parameters except for doping concentration is studied.The δ-doping density for each period varies from 3.2×1010 to 4.8×1010cm-2.We observe that the lasing threshold current density increases monotonically with doping concentration.Moreover,the measurements for devices with different cavity lengths provide evidence that the free carrier absorption causes the waveguide loss also to increase monotonically.Interestingly the observed maximum lasing temperature is best at a doping density of 3.6×1010cm-2.Liu H C Luo H Ban D Waichter M Song C Y Wasilewski Z R Buchanan M Aers G C SpringThorpe A J Cao J C Feng S L Williams B S Hu Q 2006Journal of Semiconductors2006,27,4:2
4Effect of MCI-154,a calcium sensitizer,on calcium sensitivity of myocardial contractile system in endotoxemic rats显示文摘Mei J M Hu D Y Chen H S 2000Acta Pharmacol Sin2000,21,:2
5深部地球条件下铁和氧元素的化学变化显示文摘氧与铁分别为地球上丰度最高的元素与占地球质量最大的元素,它们所形成的化合物遍布我们的星球,具有-2价的氧控制着地球的氧逸度,随着深度的增加氧逸度逐渐降低,与铁所形成的氧化物中铁的价态也逐渐降低,O/Fe逐渐增加,近些年来科学家们发现深部地球条件下铁的一系列氧化物,其中具有高压黄铁矿结构的铁超氧化物FeO2具有最高的O/Fe,并且它还能够携带一定量的H(表示为Py-FeO2H,, x=0-1)。夏群科 Liu J Hu Q Y Bi W L Yang L X Xiao Y M Chow P Meng Y.Prakapenka V B Mao H K Mao W L 2019矿物岩石地球化学通报2019,38,3:2
6Genetic analyses and mapping of a new thermo-sensitive genic male sterile gene in maize 显示文摘TANG J H FU Z Y HU Y M 2006TherAppl Genet2006,113,:1
7Biodiesel production from transesteritication of rapeseed oil using KF/Eu2 O3 as a catalyst 显示文摘Sun H Hu K Lou H Zheng X M 2008Energy Fuels2008,22,:1
8Invited commentary:lead,bones,women,and pregnancy-the poison within显示文摘 HERNANDEZ-AVILA M 2002Am J Epidemiol2002,156,12:1
9Influence of torque on lateral capacity of drilled shafts in sands显示文摘HU Z H MCVAY M BLOOMQUIST D 2006Journal of Geotechnical and Geoenvironment Engineering2006,132,4:1
10Quantification of Halocene Asian monsoon rainfall from spatially separated cave record 显示文摘Hu C Y Henderson G M Huang J H 2008Earth Planet Sci Lett2008,266,:1
11Platelet-leukocyte cross talk in whole blood 显示文摘LI N HU H LINDQVIST M 2000Arterioscler Thromb Vasc Biol2000,20,12:1
12An isomeric studyof N5+,N5and N5-:a Gaussian-03investigation显示文摘Wang X Hu H R Tian A M 2000Chem Phys Lett2000,329,:1
13Isolation and characteriza- tion of a fungus able to degrade pyrethroids and 3-phenoxy-benzaldehyde 显示文摘Chen S H Hu Q B Hu M Y 2011Bioresource Technology2011,102,:1
14Loss of p53 accelerates neointimal lesions of vein bypass grafts in mice显示文摘Mayr U Mayr M Li CH Wernig F Dietrich H Hu Y 2002Circ Res2002,90,2:1
15A novel and low-temperation hydrothermal synthesis of SnO2 nanorod显示文摘Guo C X Cao M H Hu C W 2004Inorganic Chemistry Communication2004,7,:1
16Major ion chemistry of some large Chinese rivers 显示文摘Hu M H Stallard R F Edmond J M 1982Nature1982,298,5874:1
17Elucidation of the structure of cellulolytic enzyme lignin显示文摘Hu Z Yeh T F Chang H M 2006Holzforschung2006,60,4:1
18Anal Chim Acta显示文摘Cao D S Hu Q N Xu Q S Yang Y N Zhao J C Lu H M Zhang L X Liang Y Z 2011692(1-2):502011,692,12:1
19Thermoelastic generation of cylindrical rayleigh waves and whispering gallery modes by pulsed- laser exeitation显示文摘HU W QIAN M CANTRELL J H 2004Applied Physics Letters2004,85,18:1
20Methane emissions from different vegetation zones in a Qinghai-Tibetan Plateau wetland显示文摘HIROTA M TANG Y H HU Q W 2004Soil Biology & Biochemistry2004,36,5:1
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