Results 121 to 130 of about 1,454,923 (313)

Quasi-Static and High Strain Rates

open access: yesProcedia Engineering, 2011
AbstractCylindrical samples of a 0/90° cross-ply Nextel 610™/Al-6061 (∼55Vf%) metal matrix composite have been subjected to compression testing at quasi-static and high strain rates over a range of angles between 0° and ±45° with respect to the principal fiber directions.
Hall, I.W., Tasdemird, A., Kara, Ali
openaire   +1 more source

Loss of AMBRA1 activates MAPK and angiogenesis signaling pathways in melanoma cells

open access: yesFEBS Open Bio, EarlyView.
Loss of AMBRA1 in melanoma cells activates multiple oncogenic pathways associated with tumor progression. Transcriptomic and protein network analyses revealed that AMBRA1 depletion enhances MAPK/ERK signaling, angiogenesis, TGF‐β/EMT signaling, and Wnt/axon guidance pathways.
Milad Ibrahim   +4 more
wiley   +1 more source

Strain rate dependence of mechanical behaviour and evaluation of the microstructure of tungsten monocrystals

open access: yes, 2022
10 S. : Abb.,Lit.Monocrystals of tungsten were compressed in 110 direction at three loading velocities (from 10E-4 to 2 times 10E+2 1/s) to investigate the macroscopic mechanical behaviour as a function of strength, deformability and the fracture ...
Chiem, C.Y., Meyer, L.W.
core  

Thermomechanical Variational Principles for Dissipative Materials with Application to Strain Localization in Bulk Metallic Glasses [PDF]

open access: yes, 2004
This thesis is concerned with variational principles for general coupled thermomechanical problems in dissipative materials including finite elastic and plastic deformation, non-Newtonian viscosity, rate sensitivity, arbitrary flow and hardening rule, as
Yang, Qiang
core   +1 more source

High strain rate superplasticity in ultrafine-grained Ti-4.5Al–3V–2Mo–2Fe alloy

open access: yesJournal of Materials Research and Technology
High strain rate superplasticity (≥1 × 10−2 s−1) has been widely reported in low-melting-point materials such as aluminum and magnesium alloys, but remains underdeveloped in high-melting-point materials, particularly titanium alloys.
Peng Han   +5 more
doaj   +1 more source

Pathways and pitfalls: a qualitative study of student experiences in biomedical science education

open access: yesFEBS Open Bio, EarlyView.
Biomedical science students from underrepresented backgrounds face barriers including financial strain, disrupted laboratory access and cultural exclusion. Peer networks provide vital support when institutional systems are difficult to navigate. To create inclusive learning environments and achieve academic success, educators should blend active, hands‐
Olivia J. Russell   +8 more
wiley   +1 more source

Effect of microstructure on anomalous strain-rate-dependent behaviour of bacterial cellulose hydrogel [PDF]

open access: yes, 2016
This study is focused on anomalous strain-rate-dependent behaviour of bacterial cellulose (BC) hydrogel that can be strain-rate insensitive, hardening, softening, or strain-rate insensitive in various ranges of strain rate.
Andrew Ka-Chun Lau (7212893)   +5 more
core   +1 more source

Energy absorption at high strain rate of glass fiber reinforced mortars

open access: yesEPJ Web of Conferences, 2015
In this paper, the dynamic behaviour of cement mortars reinforced with glass fibers was studied. The influence of the addition of glass fibers on energy absorption and tensile strength at high strain-rate was investigated. Static tests in compression, in
Fenu Luigi, Forni Daniele, Cadoni Ezio
doaj   +1 more source

Evolution of dislocation substructures in metals via high-strain-rate nanoindentation. [PDF]

open access: yesProc Natl Acad Sci U S A, 2023
Zhang Y   +4 more
europepmc   +1 more source

Risk Prediction Models for Recurrence After Curative Treatment of Early‐Stage or Locally Advanced Lung Cancer: A Systematic Review

open access: yesAging and Cancer, EarlyView.
This systematic review synthesizes prognostic models for survival and recurrence in resected non‐small cell lung cancer. While many models demonstrate moderate to good discrimination, few are externally validated and reporting quality is variable, limiting clinical applicability and highlighting the need for robust, transparent model development ...
Evangeline Samuel   +4 more
wiley   +1 more source

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