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Displaying 326 - 350 of 2289

Ultra-Thin Film Dielectric Reliability Characterization

January 15, 1999
Author(s)
John S. Suehle
… of gate oxides is becoming a critical concern as oxide thickness is scaled below 4 nm in future technology … understand the physical mechanism(s) responsible for gate oxide wear-out and breakdown if reliability projections are … accelerated stress tests, dielectric breakdown, gate oxide integrity, silicon dioxide …

Flame Retardant Mechanism of Silica Gel/Silica

November 1, 2000
Author(s)
Takashi Kashiwagi, Jeffrey W. Gilman, Kathryn M. Butler, Richard H. Harris Jr., John R. Shields, A Asano
… fused silica were added to polypropylene and polyethylene oxide to determine their flame retardant effectiveness and … as a non-char-forming thermoplastic and polyethylene oxide was chosen as a polar char-forming (slight) … silicas and silica gel to polypropylene and polyethylene oxide significantly reduced the beat release rate and mass …

Improving the Cytochrome P450 Enzyme System for Electrode-Driven Biocatalysis of Styrene Epoxidation

July 1, 2000
Author(s)
M P. Mayhew, Vytautas Reipa, Marcia J. Holden, V L. Vilker
… Y96F mutation to P450cam. Styrene and styrene and styrene oxide mass balance determinations showed different product … the stoichiometry between styrene consumption and styrene oxide formation was 1:1. At high styrene conversion, a second … biocatalysis, Cytochrome P450, electroenzymology, styrene oxide …

Certification of Beryllium Mass Fraction in SRM 1877 Beryllium Oxide Powder Using High-Performance Inductively-Coupled Plasma Optical Emission Spectrometry with Exact Matching

February 11, 2009
Author(s)
Michael R. Winchester, Gregory C. Turk, Therese A. Butler, Thomas J. Oatts, Charles Coleman, Donald Nadratowski, Ritu Sud, Mark D. Hoover, Aleksandr B. Stefaniak
… (NIST) Standard Reference Material (SRM) 1877 Beryllium Oxide Powder. In order to obtain best accuracy and precision, … beryllium oxide, certification, exact matching, ICP-OES, SRM, … of Beryllium Mass Fraction in SRM 1877 Beryllium Oxide Powder Using High-Performance Inductively-Coupled …

Pb(II) Adsorption on Isostructural Hydrated Alumina and Hematite (0001) Sur faces: A DFT Study

January 20, 2009
Author(s)
Sara E. Mason, Christopher R. Iceman, Kunaljeet Tanwar, Thomas P. Trainor, Anne M. Chaka
… of Pb at the aqueous interface of nanoscale metal oxide and metal (oxy)hydroxide particles is perhaps the most … modeling the complex chemistry that exists at the water-oxide interface. In this work we present a detailed {\it ab … Density functional theory, Aluminum oxide, Iron oxide, Water, Lead …

Energy dissipation of highly charged ions on Al oxide films

March 3, 2010
Author(s)
Joshua M. Pomeroy, Russell Lake, C E. Sosolik
… system and lattice. For HCIs interacting with Al oxide, combined experiments and theory indicate that defect … Our approach is to extract highly charged ions onto the Al oxide barriers of metal-insulator-metal tunnel junctions and … Results from Xeq+ for q = 32, 40, 44 extracted onto Al oxide films are discussed in terms of post irradiation …

Comparison of Backbone Dynamics of Oxidized and Reduced Putidaredoxin by 15 N NMR Relaxation Measurements

August 3, 1999
Author(s)
Fahriye N. Sari, Marcia J. Holden, M P. Mayhew, V L. Vilker, B Coxon
… The backbone dynamics of uniformly 15 N-labeled reduced and oxidized putidaredoxin (Pdx) have been studied by 2D 15 N NMR … for the reduced Pdx are generally higher than for the oxidized Pdx, and there is increased mobility on the microsecond to millisecond time scale for the oxidized Pdx in comparison with the reduced Pdx. These …

Analysis of the Noise Spectra from Oxidized Superparamagnetic Nanoparticles

August 18, 2014
Author(s)
Solomon I. Woods, Snorri Ingvarsson, Shouheng Sun, John Kirtley
… to analyze the magnetic noise from thin films of partially oxidized nanoparticles. Functionalized Co nanoparticles with … and 6 nm were oxygenated in solution and then deposited on oxidized silicon substrates, self-assembling into arrays of … Analysis of the Noise Spectra from Oxidized Superparamagnetic Nanoparticles …

Physical Properties of LiMn 2-x MxO 4 (M = Ni, Fe) Sol-Gel Nanopowders

December 15, 2014
Author(s)
E. Talik, L. Lipinska, A. Guzik, Pawel Zajdel, M. Michalska, M. Szubka, M. Kadziolka-Gawel, Rick L. Paul
The Pechini sol-gel method was applied to obtain LiMn 2-xT xO 4 (T=Ni, Fe; x = 0.1 to 0.5) nanopowders. Crystal and electronic structures, chemical composition and magnetic properties of the materials were characterized by X-ray diffraction, XPS, SEM/EDX

Enhanced Sensitivity of Neil1-/- Mice to Chronic UVB Exposure

October 28, 2016
Author(s)
Pawel Jaruga, M Miral Dizdar, Marcus J. Calkins, Vladimir Vartanian, Amanda McCullough, R. S. Lloyd, Guldal Kirkali
Oxidative stress and oxidatively induced DNA base damage are central mediators of UV-induced carcinogenesis and skin aging. However, increased steady-state levels of oxidatively induced DNA base damage have not been reported after chronic UV exposure

Aflatoxin-guanine DNA Adducts and Oxidatively-induced DNA Damage in Aflatoxin-treated Mice in vivo as Measured by Liquid Chromatography-Tandem Mass Spectrometry with Isotope-dilution

December 11, 2018
Author(s)
Erdem Coskun, Pawel Jaruga, Vladimir Vartanian, Onur Erdem, Patricia Egner, John D. Groopman, R. S. Lloyd, Miral M. Dizdar
… DNA. We also tested whether the AFB1-treatment causes oxidatively- induced DNA base damage using gas … the accurate measurement of three AFB1-DNA adducts and oxidatively-induced DNA lesions as biomarkers of AFB1- … Aflatoxin-guanine DNA Adducts, Oxidatively-induced DNA Damage, biomarkers of AFB1-exposure, …
Displaying 326 - 350 of 2289
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