Results 61 to 70 of about 463,924 (293)
Nonmonotonic Temperature-dependent Resistance in Low Density 2D Hole Gases
, 1999 The low temperature longitudinal resistance-per-square Rxx(T) in ungated GaAs/AlGaAs quantum wells of high peak hole mobility 1.7x10^6 cm^2/Vs is metallic for 2D hole density p as low as 3.8x10^9 cm-2. The electronic contribution to the resistance, R_{el}
A. M. Finkelshtein +20 more
core +1 more source
Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications
FEBS Open Bio, EarlyView.This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley +1 more source
Valorization of moroccan olive stones by using it in particleboard panels
Maderas: Ciencia y Tecnología, 2014 The main objective of this work was to find new applications to valorize olive stones (endocarp and seed). In order to improve knowledge on olive stones, the phenolic compounds concentration of three varieties of Moroccan olive trees: Moroccan Picholine,
M. Elbir +9 more
doaj
Evidence for crossed Andreev reflection in superconductor-ferromagnet hybrid structures
, 2004 We have measured the non-local resistance of aluminum-iron spin-valve structures fabricated by e-beam lithography and shadow evaporation. The sample geometry consists of an aluminum bar with two or more ferromagnetic wires forming point contacts to the ...
A. F. Andreev +3 more
core +1 more source
FEBS Open Bio, EarlyView.This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill +4 more
wiley +1 more source
Electric resistance tomography and stress wave tomography for decay detection in trees—a comparison study [PDF]
PeerJ, 2019 Background To ensure the safety of trees, two NDT (nondestructive testing) techniques, electric resistance tomography and stress wave tomography, were employed to quantitatively detect and characterize the internal decay of standing trees.
Xiaoquan Yue +3 more
doaj +2 more sources
Frontiers in Plant Science, 2022 Scots pine heartwood is known to have resistance to wood decay due to the presence of extractives, namely stilbenes and resin acids. However, previous studies have indicated that these extractives are degradable by wood decaying fungi.
Tiina Belt +3 more
doaj +1 more source
Decay and termite resistance of phthaloylated wood
Wood Preservation, 2008 スギ辺材を無水フタル酸で化学修飾することによって得られたフタル化木材の耐朽性と耐蟻性を, アセチル化木材と比較しながら評価した。褐色腐朽菌オオウズラタケと白色腐朽菌カワラタケによる腐朽試験の結果, フタル化木材は, アセチル化木材よりも軽度な置換基導入で, 高い耐朽性を示すことが明らかとなり, その効果は特にオオウズラタケに対して顕著であった。このような高い耐朽性を付与するのに必要な置換基の分子構造の特徴を調べるために, フタル基と類似の構造を有する化学修飾木材を調製し, それらの耐朽性を調べた。その結果, 無水トリメリト酸がフタル化に匹敵する高い耐朽性を付与したのに対して, 無水安息香酸やcis-1, 2-シクロヘキサンジカルボン酸無水物では, 顕著な耐朽性が得られることはなく ...
Yoko NAGASAWA +3 more
openaire +2 more sources
Aging and Cancer, EarlyView.Natural products target the aging kidney in diabetic nephropathy by restoring the AMPK–SIRT1–Nrf2 axis, reducing oxidative stress, inflammation, fibrosis, and cellular senescence while enhancing mitochondrial biogenesis and antioxidant defenses.
Sherif Hamidu +8 more
wiley +1 more source
Resistively controlled primordial magnetic turbulence decay
Astronomy & AstrophysicsContext. Magnetic fields generated in the early Universe undergo turbulent decay during the radiation-dominated era. The decay is governed by a decay exponent and a decay time. It has been argued that the latter is prolonged by magnetic reconnection, which depends on the microphysical resistivity and viscosity.
A. Brandenburg, A. Neronov, F. Vazza
openaire +3 more sources