Results 21 to 30 of about 2,027,258 (333)
A first-principles study of helium storage in oxides and at oxide--iron interfaces [PDF]
, 2012 Density-functional theory calculations based on conventional as well as hybrid exchange-correlation functionals have been carried out to study the properties of helium in various oxides (Al2O3, TiO2, Y2O3, YAP, YAG, YAM, MgO, CaO, BaO, SrO) as well as at
Allnatt A. R. +4 more
core +2 more sources
Catalytic Behaviour of Mesoporous Cobalt-Aluminum Oxides for CO Oxidation [PDF]
, 2014 Ordered mesoporous materials are promising catalyst supports due to their uniform pore size distribution, high specific surface area and pore volume, tunable pore sizes, and long-range ordering of the pore packing.
Bordoloi, Ankur +7 more
core +3 more sources
New Journal of Physics, 2014 We investigate the interfacial electronic properties of N,N’-bis(n-octyl)-(1,7&1,6)-dicyanoperylene-3,4:9,10-bisdicarboximide (PDI8-CN _2 ) organic semiconductor films grown on silicon dioxide (SiO _2 ) by polarization-resolved second harmonic generation
F Ciccullo +5 more
doaj +1 more source
The association of cobalt with iron and manganese (oxyhydr)oxides in marine sediment. [PDF]
, 2010 Formation and dissolution of authigenic Fe and Mn (oxyhydr)oxides influence cycling of trace metals in oxic/suboxic surface sediments.We used the diffusive gradients in thin films technique (DGT) to estimate the association of cobalt with iron and ...
Davison, William +3 more
core +1 more source
High-temperature catalyst supports and ceramic membranes: Metastability and particle packing [PDF]
, 1997 Parameters and/or processes responsible for the stability of catalyst supports and ceramic membranes are discussed. Two major parameters/processes were identified which are responsible for the stability of sol-gel derived nanostructured oxides at ...
Burggraaf, Anthonie J. +5 more
core +2 more sources
Journal of Advanced DielectricsIn the semiconductor industry, the demand for high-performance, scalable and cost-effective metal–insulator–metal (MIM) capacitors is increasing, particularly for memory and analog circuit applications.
Md. Kashif Shamim +5 more
doaj +1 more source
Oxidative stress: oxidants and antioxidants [PDF]
Experimental Physiology, 1997 An imbalance between oxidants and antioxidants in favour of the oxidants, potentially leading to damage, is termed ‘oxidative stress’. Oxidants are formed as a normal product of aerobic metabolism but can be produced at elevated rates under pathophysiological conditions. Antioxidant defense involves several strategies, both enzymatic and non‐enzymatic.
openaire +2 more sources
Pressure Influence on the Stability and Formation of γ - Fe4N when Transformed into Fe4O [PDF]
Materials Research, 2013 The improved technology has allowed the study of electronic structure of solids with a complex crystalline structure and containing various atoms, different in the unit cell, and thus we can calculate the energy of formation and obtaining the bulk ...
A. V. dos Santos +2 more
doaj +1 more source
Pulsed and continuous-wave magnetic resonance spectroscopy using a low-cost software-defined radio
AIP Advances, 2019 Software-defined radios (SDRs) constitute a modern and highly adaptive realization of a radio-frequency transceiver system. This work demonstrates how a particular radio transceiver, namely, the LimeSDR board, can be configured for pulsed and continuous ...
A. Doll
doaj +1 more source
Frontiers in Chemistry, 2019 Anatase TiO2 provides photoactivity with high chemical stability at a reasonable cost. Different methods have been used to enhance its photocatalytic activity by creating band gap states through the introduction of oxygen vacancies, hydrogen impurities ...
Ruth Martínez-Casado +6 more
doaj +1 more source