Results 81 to 90 of about 2,568,150 (244)

High-temperature mechanical behavior of polycrystalline yttrium-doped barium cerate perovskite [PDF]

, 2011
The high-temperature mechanical properties of the mixed ionic-electronic conductor perovskite BaCe0.95Y0.05O3-δ with average grain size of 0.40μm have been studied in compression between 1100 and 1300°C in air at different initial strain rates.
Jiménez Melendo, Manuel, López Robledo, Manuel Jesús, Martínez Fernández, Julián, Real Pérez, Concepción, Vaquero Aguilar, Cristina   +4 more
core   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Unveiling the dynamic mechanical behavior with phase-transformation and microstructural evolution in a novel dual-phase high-entropy alloy

Materials & Design
A novel TiZrHfTaMo refractory high-entropy alloy (RHEA) was developed by adding Molybdenum to the TiZrHfTa system to enhance its mechanical properties.
Muhammad Abubaker Khan, Jinjun Wang, Jamieson Brechtl, N. Radhika, Bushra Jabar, Adil Mansoor, Peter K. Liaw, Mohamed A. Afifi   +7 more
doaj   +1 more source

High Strain Rate Compaction of Porous Materials – Experiments and Modelling

EPJ Web of Conferences, 2018
Porosity can be found in many forms in common materials, either naturally occurring such as wood, or introduced by a manufacturing process. Applications for such materials include impact protection and energy absorption, which require a good ...
Cotton Matthew, Maw John
doaj   +1 more source

Modeling strain rate sensitivity and high temperature deformation of Mg-3Al-1Zn alloy

Journal of Magnesium and Alloys, 2019
Increasing the plastic deformation temperature of Mg alloys results in higher strain rate sensitivity, easier activation of secondary slip modes, and impeded twinning. In this study, the strain rate sensitivity is estimated for each deformation mode, and
Adrien Chapuis, Qing Liu
doaj   +1 more source

Realistic time-scale fully atomistic simulations of surface nucleation of dislocations in pristine nanopillars [PDF]

, 2012
We use our recently proposed accelerated dynamics algorithm (Tiwary and van de Walle, 2011) to calculate temperature and stress dependence of activation free energy for surface nucleation of dislocations in pristine Gold nanopillars under realistic loads.
Tiwary, Pratyush, van de Walle, Axel
core  

Geometrical statistics and vortex structures in helical and nonhelical turbulences [PDF]

, 2010
In this paper we conduct an analysis of the geometrical and vortical statistics in the small scales of helical and nonhelical turbulences generated with direct numerical simulations.
Gulitski G., Moffatt H. K., Moreau J. J., Yi Li   +3 more
core   +1 more source

Erythropoietin modulates hepatic inflammation, glucose homeostasis, and soluble epoxide hydrolase and epoxides in high‐fat diet‐induced obese mice

FEBS Open Bio, EarlyView.
Erythropoietin administration suppresses hepatic soluble epoxide hydrolase (sEH) expression, leading to increased CYP‐derived epoxides. This is associated with a shift in hepatic macrophage polarization characterized by reduced M1 markers and increased M2 markers, along with reduced hepatic inflammation, suppressed hepatic lipogenesis, and attenuated ...
Takeshi Goda, Satoru Sugimoto, Chiharu Cho, Madoka Konishi, Nozomi Inoue, Satoshi Miyagaki, Yasuhiro Kawabe, Takuro Okamura, Masahide Hamaguchi, Hisakazu Nakajima, Michiaki Fukui, Masakazu Shinohara, Tomoko Iehara   +12 more
wiley   +1 more source

Constitutive Model for Material Comminuting at High Shear Rate [PDF]

, 2013
The modeling of high velocity impact into brittle or quasibrittle solids is hampered by the unavailability of a constitutive model capturing the effects of material comminution into very fine particles.
Bazant, Zdenek P., Caner, Ferhun C.
core  

The role of nitrogen uptake on the competition ability of three vineyard Saccharomyces cerevisiae strains [PDF]

, 2017
Three vineyard strains of Saccharomyces cerevisiae, P301.4, P304.4 and P254.12, were assayed in comparison with a commercial industrial strain, QA23. The aim was to understand if nitrogen availability could influence strain competition ability during ...
Beltran, Gemma, Corich, Viviana, Giacomini, Alessio, Mas, Albert, Nadai, Chiara, Vendramini, Chiara   +5 more
core   +1 more source