Results 41 to 50 of about 2,027,258 (333)

Oxide formation at the surface of late 4d transition metals: Insights from first-principles atomistic thermodynamics

, 2003
Using density-functional theory we assess the stability of bulk and surface oxides of the late 4d transition metals in a ``constrained equilibrium'' with a gas phase formed of O2 and CO. While the stability range of the most stable bulk oxide extends for
Bondzie, Carlisle, G.L. Kellog, Hendriksen, K. Reuter, K.C. Taylor, Kaxiras, Kim, Kolthoff, Li, Lundgren, M. Scheffler, M. Scheffler, Mars, Oh, Over, Peden, Qian, Reuter, Reuter, Reuter, Reuter, Reuter, Stampfl, Szanyi, Todorova, Turner, Veser, Wang, Wang, Zheng, Ziauddin   +31 more
core   +1 more source

TEM study of the effect of high-temperature thermal cycles on the stability of the Y-Al-O oxides in MA956 ODS steel [PDF]

, 2019
MA956, a commercial ferritic grade of Oxide Dispersion-Strengthened (ODS) steel, was investigated using transmission electron microscopy (TEM) to evaluate the influence of high-temperature thermal cycles on the nanometric dispersed oxides.
Arzt, Betz, Bhadeshia, Capdevila, Chao, Chen, Chen, Czyrska-Filemonowicz, Czyrska-Filemonowicz, Dubiel, Dubiel, Hsiung, Kasada, Klueh, Krautwasser, Lee, Noh, Noh, Noh, Oka, Oka, Ratti, Rösler, Schaffer, Sittel, Toloczko, Wasilkowska, Wolski, Zakine, Zhang   +29 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Electrochemical Metallization Memristive Devices with Al Active Electrode Using Engineered Mixed Hexagonal/Orthorhombic Polycrystalline YMnO3

Small Structures
We report electrochemical metallization (ECM) resistive switching in polycrystalline YMnO3 memristive devices using Al as an active electrode. Al/YMnO3/Pt devices exhibit bipolar resistive switching with a high ROFF/RON ratio of 104, low operational ...
Rong Wu, Sebastian W. Schmitt, Florian Maudet, Dong Jik Kim, Veeresh Deshpande, Catherine Dubourdieu   +5 more
doaj   +1 more source

Quantitative and Qualitative Evaluation of Non-Metallic Inclusions in High-Silicon Steel after Hot Rolling [PDF]

Archives of Metallurgy and Materials
This paper presents an analysis of non-metallic inclusions occurring in high-silicon steels containing about 3% Si of terms of their type, volume fraction and morphology.
K. Ścibisz, J. Krawczyk
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Machine learning approaches to identify and design low thermal conductivity oxides for thermoelectric applications

Data-Centric Engineering, 2020
The search space for new thermoelectric oxides has been limited to the alloys of a few known systems, such as ZnO, SrTiO3, and CaMnO3. Notwithstanding the high power factor, their high thermal conductivity is a roadblock in achieving higher efficiency ...
Abhishek Tewari, Siddharth Dixit, Niteesh Sahni, Stéphane P.A. Bordas   +3 more
doaj   +1 more source

Sputtering of Oxides from LaNi5 Surface

East European Journal of Physics, 2021
The changes in chemical composition of the intermetallic alloy LaNi5 surface monolayers were studied using secondary ion mass spectrometry (SIMS) in the process of the alloy interaction with oxygen.
Viktor O. Litvinov, Ivan I. Okseniuk, Dmitriy I. Shevchenko, Valentin V. Bobkov   +3 more
doaj   +1 more source

Unconventional approaches to combine optical transparency with electrical conductivity

, 2007
Combination of electrical conductivity and optical transparency in the same material -- known to be a prerogative of only a few oxides of post-transition metals, such as In, Sn, Zn and Cd -- manifests itself in a distinctive band structure of the ...
Medvedeva, J. E.
core   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source