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期刊High-temperature perovskite relaxor ferroelectrics: A comparative study
《Journal of Applied Physics》Stringer, CJ; Shrout, TR; Randall, CA
The recent discovery of high-temperature piezoelectric ceramics based onBi((MeMe'')-Me-'')O-3-PbTiO3 solutions have also permitted the development of high-temperature relaxorferroelectrics with ternary...显示全部
关键词:LEAD MAGNESIUM NIOBATE  GLASSY POLARIZATION BEHAVIOR  PROPERTY RELATIONS CERAMICS  ORDER  TRANSITION  CRYSTAL  BARIUM  SYStem  tem 
期刊High-field head radiofrequency volume coils using transverse electromagnetic (tem) and phased array technologies
《NMR in Biomedicine》Nikolai I. Avdievich[*]; Hoby P. Hetherington
This article describes technological advances in quadrature transverse electromagnetic (tem) volume coils and phased arrays reported recently from our laboratory developed for MRI and MRS imaging of the human brain. T...显示全部
关键词:high field   RF coil   head RF coil   tem   phased array   active detuning   CRC phased array   simultaneous transmission and reception 
期刊Kinetic behavior of hydrogenation of aromatics in diesel fuel over silica–alumina-supported bimetallic Pt–Pd catalyst
《Applied Catalysis A: General》Takashi Fujikawa; Kazuo Idei; Katsuyoshi Ohki; Hirofumi Mizuguchi ; Kazushi Usui
The kinetics and long-term stability test of the aromatic hydrogenation of diesel fuel were studied on SiO2–Al2O3 supported bimetallic Pt–Pd catalyst. The tests on the influence of operating parameters and kinetics ...显示全部
关键词:Hydrogenation  Hydrodesulfurization  Pt–Pd  SiO2–Al2O3  Kinetics  Aromatics  Diesel fuel  tem 
期刊Synthesis, characterization, and catalytic function of novel highly dispersed tungsten oxide catalysts on mesoporous silica
《Journal of Catalysis》Jose E. Herrera[a]; Ja Hun Kwak[a]; Jian Zhi Hu[a]; Yong Wang[a]; Charles H.F. Peden[a]&Email:chuck.peden@pnl.gov; Josef Macht[b]; Enrique Iglesia[b]
The physical and chemical properties of tungsten oxide supported on SBA-15 mesoporous silica prepared by a controlled grafting process through atomic layer deposition (ALD) were studied using complementary characteriz...显示全部
关键词:Tungsten oxide  SBA¨C15  Methanol dehydration  2-Butanol dehydration  DRS UV¨Cvis  tem  (1)H NMR  XRD  TPO 
期刊Charge carriers in grain boundaries of 0.5% Sr-doped LaNbO4
《Solid State Ionics》Harald Fjeld[a];Despoina Maria Kepaptsoglou[b];Reidar Haugsrud[a];Truls Norby[a]
The grain boundary and grain interior conductivities of La0.995Sr0.005NbO4 ? δ have been studied by means of impedance spectroscopy at 400 °C after quenching from different pH2O, pO2 and temperatures. Effects of...显示全部
关键词:LaNbO4  Grain boundaries  Impedance spectroscopy  tem  Space charge effects 
期刊Photoluminescence and optical characterization of CdS nanoparticles prepared by solid-state method at low temperature
《Radiation Effects & Defects in Solids》Puja Chawla[a]; Geeta Sharma[a]; S. P. Lochab[b]; Nafa Singh[a]
The photoluminescence (PL) and optical properties of CdS nanoparticles prepared by the solid-state method at low temperature have been discussed. The effects of NaCl and anionic surfactant SDBS (sodium dodecylbenzene ...显示全部
关键词:photoluminescence  solid-state method  CdS  SDBS  FESEM  tem 
期刊On the nucleation and crystallization of silicalite-1 from a dilute clear sol
《Microporous and Mesoporous Materials》Sandeep Kumar[a];R. Lee Penn[b];Michael Tsapatsis[a]
Nucleation and crystallization of silicalite-1, the all-silica zeolite with MFI framework, is typically studied using the tetrapropylammonium (TPA)-silica–water system. Here, TPA-silica sols were studied by a combina...显示全部
关键词:Silicalite-1  Crystallization  Nucleation  tem  Cryo-tem 
期刊Individual aerosol particles from biomass burning in southern Africa: 1. Compositions and size distributions of carbonaceous particles
《Journal of Geophysical Research》Mihály Pósfai[1];Renáta Simonics[2];Jia Li[3];Peter V. Hobbs[4];Peter R. Buseck[5];
Individual aerosol particles in smoke plumes from biomass fires and in regional hazes in southern Africa were studied using analytical transmission electron microscopy (tem), which allowed detailed characterization of...显示全部
关键词:biomass burning carbonaceous aerosol individual particles tem 
期刊Active Silver Nanoparticles for Wound Healing
《International Journal of Molecular Sciences》Chiara Rigo,[1] Letizia Ferroni,[2] Ilaria Tocco,[3] Marco Roman,[4] Ivan Munivrana,[3] Chiara Gardin,[2] Warren R. L. Cairns,[4] Vincenzo Vindigni,[3] Bruno Azzena,[3] Carlo Barbante,[4];Barbara Zavan[2,][*]
In this preliminary study, the silver nanoparticle (Ag NP)-based dressing, Acticoat? Flex 3, has been applied to a 3D fibroblast cell culture in vitro and to a real partial thickness burn patient. The in vitro results...显示全部
关键词:silver nanoparticles ICP-MS SEM tem Acticoat? Flex 3 in vivo in vitro cytotoxicity mitochondrial toxicity 
期刊Interface structure analysis of SiC fibres reinforced SiC matrix composites by energy filtering tem
《Microscopy》Tamaki Shibayama[1],[*];Heishichiro Takahashi[1];M. Kawasaki[2];Akira Kohyama[3]
Various criteria for environmental effects on microstructural evolution at interfaces of SiC fibres reinforced SiC matrixcomposites are proposed. Of interest is that degradation of the composite is observed after anne...显示全部
关键词:energy filtering tem microstructural evolution SiC fibres 
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