Results 41 to 50 of about 2,546,782 (204)
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Effect of the matrix behavior on the damage of ethylene–propylene glass fiber reinforced composite subjected to high strain rate tension [PDF]
, 2012 This study investigates the origin of the strain rate effect on the mechanical behavior of a discontinuous glass fiber reinforced ethylene–propylene copolymer (EPC) matrix composite.
BOCQUET, Michel +2 more
core +6 more sources
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
Strain hardenability of a gradient metallic alloy under high-strain-rate compressive loading
Materials & Design, 2019 Subjected to an impact loading, metallic alloys usually display strain softening due to the highly localized shear deformation accompanied by temperature rise, which causes the decrease of resistance to an applied loading and even catastrophic failure ...
Jitang Fan, Minqiang Jiang
doaj +1 more source
Modeling and Simulation Techniques Used in High Strain Rate Projectile Impact
Mathematics, 2021 A series of computational models and simulations were conducted for determining the dynamic responses of a solid metal projectile impacting a target under a prescribed high strain rate loading scenario in three-dimensional space.
Derek G. Spear +2 more
doaj +1 more source
High-pressure, High-strain-rate Materials Effects [PDF]
, 2004 A 3-year LDRD-ER project to study the response of shocked materials at high pressure and high strain rate has concluded. This project involved a coordinated effort to study single crystal samples that were shock loaded by direct laser irradiation, in-situ and post-recovery measurements, and molecular dynamics and continuum modeling.
Kalantar, D. H. +11 more
openaire +2 more sources
Localization in inelastic rate dependent shearing deformations
, 2016 Metals deformed at high strain rates can exhibit failure through formation of shear bands, a phenomenon often attributed to Hadamard instability and localization of the strain into an emerging coherent structure.
Katsaounis, Theodoros +2 more
core +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
High-Strain-Rate Compressive Behavior of UHMWPE Fiber Laminate
Applied Sciences, 2020 Ultra-high-molecular-weight polyethylene (UHMWPE) fiber laminate is currently widely used in ballistic protection for its exceptional physical and mechanical properties.
Yihui Zhu +5 more
doaj +1 more source
High strain rate testing of kidney stones
Journal of Materials Science: Materials in Medicine, 2004 Sections of struvite kidney stones were tested in compression at high strain rates ( approximately 3000s(-1)) using a Kolsky bar and at low strain rates ( < 0.001 s(-1)) using an Instron testing machine. The peak stress in both cases appeared to be similar.
Sylven, E +3 more
openaire +3 more sources