Results 51 to 60 of about 330,923 (308)

Mechanical response of fiber-reinforced sand under cyclic loading [PDF]

open access: yesE3S Web of Conferences, 2020
Based on the consolidated undrained test under cyclic loading, the mechanical response of fiber-reinforced sand under cyclic loading was studied by varying fiber content (0.2% and 0.4%), fiber length (7 mm and 13 mm), and cyclic stress ratio (0.22, 0.24 ...
Li Gang, Zhang Jinli, Liu Jia
doaj   +1 more source

Including the normal to shear stresses ratio in fatigue life estimation for cyclic loadings [PDF]

open access: yesMATEC Web of Conferences, 2019
The paper presents the estimation of the fatigue life under multiaxial cyclic loading of two construction materials. The main aim of this paper is to present a new method which allows evaluation of fatigue life during the design and construction phase of machine elements. In paper three well known multiaxial fatigue criteria based on the critical plane
openaire   +2 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Evaluation of liquefaction strength of Japanese natural sandy soil using triaxial and simple shear tests

open access: yesSoils and Foundations, 2023
The aim of this note is to reexamine the stress and strain conditions of cyclic triaxial and cyclic simple shear tests for evaluating the liquefaction strength of natural sandy soil. The conventional method of determining the liquefaction strength relies
Fusao Oka, Akihiko Oshima, Haruo Fukai
doaj   +1 more source

On the assessment of energy dissipated through hysteresis in finite element analysis

open access: yes, 2015
The accurate reproduction of the hysteretic behaviour exhibited by soils under cyclic loading is a crucial aspect of dynamic finite element analyses and is typically described using the concept of damping ratio.
Potts, DM, Taborda, DMG, Zdravkovic, L
core   +1 more source

Stress-strain response and microstructural evolution of a FeMnCAl TWIP steel during tension-compression tests [PDF]

open access: yes, 2016
© 2016. The stress-strain response of a Fe-17.5Mn-0.7C-2Al TWIP steel during cyclic loading has been investigated by means of tension-compression tests within the strain limits of ±2%, ±5% and ±10%. In addition, the microstructural evolution during the ±
Benito Páramo, José Antonio   +3 more
core   +2 more sources

Nicotinamide N‐methyltransferase promotes drug resistance in lung cancer, as revealed by nascent proteomic profiling

open access: yesMolecular Oncology, EarlyView.
AZD9291 has shown promise in targeted cancer therapy but is limited by resistance. In this study, we employed metabolic labeling and LC–MS/MS to profile time‐resolved nascent protein perturbations, allowing dynamic tracking of drug‐responsive proteins. We demonstrated that increased NNMT expression is associated with drug resistance, highlighting NNMT ...
Zhanwu Hou   +5 more
wiley   +1 more source

Dynamic behavior and damping capacity of auxetic foam pads [PDF]

open access: yes, 2006
A novel set of auxetic (negative Poisson's ratio) open cell polyurethane foam has been developed and tested under dynamic loading conditions to assess the viscoelastic response under white noise random excitation and compressive cycling.
Bezazi, A   +3 more
core   +1 more source

PARP inhibitors elicit distinct transcriptional programs in homologous recombination competent castration‐resistant prostate cancer

open access: yesMolecular Oncology, EarlyView.
PARP inhibitors are used to treat a small subset of prostate cancer patients. These studies reveal that PARP1 activity and expression are different between European American and African American prostate cancer tissue samples. Additionally, different PARP inhibitors cause unique and overlapping transcriptional changes, notably, p53 pathway upregulation.
Moriah L. Cunningham   +21 more
wiley   +1 more source

Variation in Micro-Pores during Dynamic Consolidation and Compression of Soft Marine Soil

open access: yesJournal of Marine Science and Engineering, 2021
In this study, to explore the microstructure deformation mechanism of marine soft marine soil under cyclic loading, we analyzed the dynamic properties of soft marine soil under cyclic loading via dynamic consolidation compression testing.
Chen-Xiang Dai   +5 more
doaj   +1 more source

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