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Displaying 301 - 325 of 2289

Atomic Origin of the Autocatalytic Reduction of Monoclinic CuO in a Hydrogen Atmosphere

September 27, 2021
Author(s)
Xianhu Sun, Dongxiang Wu, Wenhui Zhu, Xiaobo Chen, Renu Sharma, Judith Yang, Guangwen Zhou
… redox reactions but probing microscopic processes of oxide reduction is challenging as 18 the insulating nature of … restricts ion and electron spectroscopic measurements of oxide 19 surfaces. Herein, using a combination of … of O 25 vacancies in the surface and subsurface of the oxide, thereby leading to the self-accelerated oxide 26 …

Introduction To Serial Reviews On Oxidative DNA Damage And Repair

January 1, 2002
Author(s)
M. Dizdaroglu
… When this type of damage occurs to DNA, it is called oxidative DNA damage and it can produce a multiplicity of … Data accumulated over many years clearly show that oxidative DNA damage plays an important role in a number of disease processes. Thus, oxidative DNA damage is implicated in carcinogenesis and …

Heavy Ion Induced Soft Breakdown of Thin Gate Oxides

December 1, 2001
Author(s)
J. F. Conley, John S. Suehle, A. H. Johnston, Bin Wang, T Miyahara, Eric M. Vogel, J B. Bernstein
… soft and hard breakdown are investigated in thin gate oxides as a function of LET, fluence, and voltage applied … Heavy Ion Induced Soft Breakdown of Thin Gate Oxides …

Oxide Reliability of SiC MOS Devices

October 12, 2008
Author(s)
Liangchun (. Yu, Kin P. Cheung, Jason P. Campbell, John S. Suehle, Kuang Sheng
… However, it has long been a common believe that the gate oxide breakdown reliability is a show-stopper, particularly … In this paper, we report that the thermally grown gate oxide on 4H-SiC is intrinsically reliable even at temperature … Oxide Reliability of SiC MOS Devices …

Thermophysical Properties of Netrogen Trifuoride, Ethylene Oxide, and Trimethyl Gallium, from Speed-of-Sound Measurements

October 16, 2008
Author(s)
John J. Hurly
… was measured in gaseous nitrogen trifluoride, ethylene oxide, and trimethyl gallium using a highly precise acoustic … C2H4O, equation-of-state, ethylene oxide, Ga(CH3)3, ideal-gas heat-capacity, intermolecular … Thermophysical Properties of Netrogen Trifuoride, Ethylene Oxide, and Trimethyl Gallium, from Speed-of-Sound Measurements …

Atomic structural evolution during the reduction of a-Fe2O3 nanowires

June 20, 2016
Author(s)
Wenhui Zhu, Jonathan P. Winterstein, Itai Maimon, Qiyue Yin, Lu Yuan, Aleksey N. Kolmogorov, Renu Sharma, Guangwen Zhou
… structure of hybrid oxides consisting of the parent oxide phase, γ-Fe2O3, as the one-dimensional wire and the … having the form of nanoparticles decorated on the parent oxide skeleton. … Iron oxide nanowires, redox reaction, Transmission electron …

Observation of iron oxide nanoparticle growth in magnetogels using magnetic resonance imaging

April 9, 2020
Author(s)
Samuel D. Oberdick, Stephen E. Russek, Megan E. Poorman, Gary Zabow
… be used to visualize the spatiotemporal dynamics of iron oxide nanoparticle growth within a hydrogel network during in … gel, or magnetogel. During in situ coprecipitation, iron oxide nanoparticles nucleate and grow due to diffusion of a … precursor loaded polymer network. The creation of iron oxide particles changes the magnetic properties of the gel, …

The Role of Cu+3 in Oxygen Evolution Activity of Copper-Oxides

May 1, 2025
Author(s)
Pooja Basera, Yang Zhao, Angel Garcia-Esparza, Finn Babbe, Neha Bothra, John Vinson, Dimosthenis Sokaras, Junko Yano, Shannon Boettcher, Michal Bajdich
… Cu-based oxides and hydroxides represent an important class of … evidence existed for the presence of hydroxides (CuOOH) or oxides, which were primarily proposed by theory. This work … The Role of Cu+3 in Oxygen Evolution Activity of Copper-Oxides …

Polyoxovanadates as Precursors for the Synthesis of Colloidal Multi-Metal Oxide Nanocrystals

March 31, 2022
Author(s)
Adam Biacchi, Lucas Johnson, Ashley Sweet, Eric Cal, Angela R. Hight Walker, Matthew Buck, Luke Barrante
… Colloidal multi-metal oxide nanocrystals that contain the element vanadium are … which yielded previously inaccessible colloidal ternary oxide nanocrystals in high yield, including triclinic FeVO4 … and correlated strongly to the phase of vanadium iron oxide as FeVO4 displayed antiferromagnetic behavior and a …

The Use of Antioxidants to Improve Vapor Pressure Measurements on Compounds with Oxidative Instability: Methyl Oleate with tert-Butylhydroquinone

December 19, 2016
Author(s)
Jason A. Widegren, Casey E. Beall, Audrey E. Tolbert, Tara M. Lovestead, Thomas J. Bruno
… range (303.15 to 343.15) K. In the absence of TBHQ, oxidative decomposition severely compromised the … methyl cis-9-octadecenoate, methyl (Z)-9-octadecenoate, oxidative instability, propyl gallate, tert- … to Improve Vapor Pressure Measurements on Compounds with Oxidative Instability: Methyl Oleate with …

Compressive stress effect on the radial elastic modulus of oxidized Si nanowires

March 23, 2010
Author(s)
Gheorghe Stan, Sergiy Krylyuk, Albert Davydov, Robert F. Cook
… we have investigated mechanical properties of as-grown and oxidized Si nanowires as a function of their diameter. From … diameter dependence of the elastic modulus of Si nanowires oxidized at 900 (^\circ\)C and 1000 \(^\circ\)C. A modified … observed in the measured elastic moduli of these oxidized Si nanowires. The values of strain and stress as …

EBSD Measurement of Strains in GaAs due to Oxidation of Buried AlGaAs Layers

February 27, 2004
Author(s)
T Keller, Alexana Roshko, R.H. Geiss, Kristine A. Bertness, T.P. Quinn
… elastic strain fields associated with the wet-thermal oxidation of buried Al xGa 1-x As (x 0.98) layers of … on a GaAs substrate. The compressive strains accompanying oxidation can exceed 6% and may lead to interlayer … EBSD Measurement of Strains in GaAs due to Oxidation of Buried AlGaAs Layers …

Radiocarbon Measurements of Black Carbon in Aerosols and Ocean Sediments

March 1, 2002
Author(s)
C A. Masiello, David L. Urban, Lloyd A. Currie
We report the optimization of dichromate-sulfuric acid oxidation for the measurement of radiocarbon in black carbon (BC). We also present comparisons of black carbon 14C measurements on NIST aerosol ( 14C measurements on NIST aerosol (Urban Dust) standard

Self-Assembly of the Triblock Copolymer 17R4 Poly(propylene oxide) 14 - Poly(ethylene oxide) 24 - Poly(propylene oxide) 14 in D 2 O

October 13, 2014
Author(s)
Bryna C. Kumi, Boualem Hammouda, Sandra C. Greer
… Pluronic 17R4 consists of tow end blocks of poly(propylene oxide)(PPO) with a middle block of poly(ethylene oxide) (PEO): PPO 14-PEO d24^-PPO 14 , where the subscripts … Self-Assembly of the Triblock Copolymer 17R4 Poly(propylene oxide) 14 - Poly(ethylene oxide) 24 - Poly(propylene oxide) …

Comparison of the Levels of 8-Hydroxyguanine in DNA as Measured by Gas Chromatography-Mass Spectrometry Following Hydrolysis of DNA by Escherichia Coli Fpg Protein or Formic Acid

July 1, 2000
Author(s)
H Rodriguez, J Jurado, J Laval, M. Dizdaroglu
8-hydroxyguanine (8-OH-Gua) is one of many lesions generated in DNA by oxidative processes including free radicals. It is the most extensively investigated lesion, due to its miscoding properties and its potential role in mutagenesis, carcinogenesis and

Nanometre-scale Oxidation of Silicon Surfaces by Dynamic Force Microscopy: Reproducibility, Kinetics and Nanofabrication

March 1, 1999
Author(s)
M Calleja, J Anguita, R Garcia, K Birkelund, F Perez-murano, John A. Dagata
… Local oxidation of silicon surfaces by scanning probe microscopy is … scale. Here, we present two approaches to optimize the oxidation for nanofabrication purposes: (i) we analyse the reproducibility and kinetics of the oxidation of Si(100) surfaces when there is no tip and sample …
Displaying 301 - 325 of 2289
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