Results 41 to 50 of about 834,880 (297)
Instabilities encountered during heat transfer to a supercritical fluid [PDF]
, 1969 Investigation was made of the unstable behavior of a heat-transfer loop operating at a supercritical pressure. Natural convection operation of the loop, with observations on acoustic and slow oscillatory behavior, was emphasized during testing. The basic
Cornelius, A. J.
core +1 more source
, 2004 The long-time behavior of the survival probability for unstable multilevel systems that follows the power-decay law is studied based on the N-level Friedrichs model, and is shown to depend on the initial population in unstable states.
E. T. Copson +8 more
core +1 more source
Analysis of unstable behavior in a mathematical model for erythropoiesis [PDF]
Journal of Mathematical Biology, 2012 We consider an age-structured model that describes the regulation of erythropoiesis through the negative feedback loop between erythropoietin and hemoglobin. This model is reduced to a system of two ordinary differential equations with two constant delays for which we show existence of a unique steady state.
Serna, Susana +2 more
openaire +6 more sources
FEBS Letters, EarlyView.We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley +1 more source
Mathematical Modelling and Analysis, 2008 Piecewise polynomial collocation methods on special nonuniform grids are efficient methods for solving weakly singular Fredholm and Volterra integral equations but there is a widespread belief that those methods are numerically unstable in the case of ...
Raul Kangro, Inga Kangro
doaj +1 more source
Critical Collapse of the Massless Scalar Field in Axisymmetry [PDF]
, 2002 We present results from a numerical study of critical gravitational collapse of axisymmetric distributions of massless scalar field energy. We find threshold behavior that can be described by the spherically symmetric critical solution with axisymmetric ...
Choptuik, M. W. +3 more
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Wear Behavior of an Unstable Knee: Stabilization via Implant Design? [PDF]
BioMed Research International, 2014 Background. Wear-related failures and instabilities are frequent failure mechanisms of total knee replacements. High-conforming designs may provide additional stability for the joint. This study analyzes the effects of a ligamentous insufficiency on the stability and the wear behavior of a high-conforming knee design.Methods.
Jörn Reinders +2 more
openaire +2 more sources
Molecular Oncology, EarlyView.Detection of extrachromosomal circular DNA (eccDNA) in plasma samples from EGFR‐mutated non‐small cell lung cancer patients. Plasma was collected before and during treatment with the EGFR‐tyrosine kinase inhibitor osimertinib. Plasma eccDNA was detected in all cancer samples, and the presence of the EGFR gene on eccDNA serves as a potential biomarker ...
Simone Stensgaard +5 more
wiley +1 more source
工程科学与技术, 2022 Sichuan—Tibet railway is in the topographic crossing zone from the Sichuan basin to Qinghai Tibet Plateau. Regional characteristic geological factors such as active structure, valley unloading and freeze-thaw weathering along the line have strong control
Guangze ZHANG +4 more
doaj
Impact of flux jumps in future colliders
Physical Review Accelerators and Beams, 2020 Type-II superconductors, like the Nb_{3}Sn used in the new HL–LHC quadrupole triplet and 11 T dipoles or FCC dipoles, are known to show an unstable behavior during magnetic-field ramps.
J. Coello de Portugal +4 more
doaj +1 more source