Results 41 to 50 of about 1,392,331 (344)

Optical doping and damage formation in AIN by Eu implantation [PDF]

open access: yes, 2010
AlN films grown on sapphire were implanted with 300 keV Eu ions to fluences from 3×1014 to 1.4×1017 atoms/cm2 in two different geometries: “channeled” along the c-axis and “random” with a 10° angle between the ion beam and the surface normal.
Alves, E.   +6 more
core   +3 more sources

Damage accumulation and lifetime prediction of fiber-reinforced ceramic-matrix composites under thermomechanical fatigue loading

open access: yesHigh Temperature Materials and Processes, 2020
In this paper, the damage accumulation and life prediction in fiber-reinforced ceramic-matrix composites (CMCs) subjected to thermomechanical fatigue (TMF) loading are investigated.
Li Longbiao
doaj   +1 more source

Interplay of space radiation and microgravity in DNA damage and DNA damage response [PDF]

open access: yes, 2017
In space, multiple unique environmental factors, particularly microgravity and space radiation, pose constant threat to the DNA integrity of living organisms.
Lu, Tao   +4 more
core   +2 more sources

Fatigue behavior of pultruded fiberglass tubes under tension, compression and torsion

open access: yesFracture and Structural Integrity
This work is devoted to an experimental investigation of fatigue behavior of pultruded fiberglass tubes under uniaxial tension, compression and torsion.
Oleg Staroverov   +6 more
doaj   +1 more source

Fatigue damage accumulation in CFRP [PDF]

open access: yesWIT Transactions on The Built Environment, 2008
A cyclic bending study using a stress ratio of 0.1 was conducted on unidirectional 45CFRP with a 60% nominal fibre volume fraction. This allowed the continuous matrix damage evolution to be followed without the influence of delamination. Damage was monitored by changes in the fatigue modulus, increase in crack density and amount of permanent bending ...
A. Plumtree, K. Cain
openaire   +1 more source

The study of a defect evolution in iron under fatigue loading in gigacyclic fatigue regime [PDF]

open access: yesFracture and Structural Integrity, 2016
The work is devoted to the study of the damage accumulation in iron under gigacyclic fatigue (VHCF) regime. The study of the mechanical properties of the samples with different state of life time existing was carried out on the base of the acoustic ...
O. Plekhov   +4 more
doaj   +1 more source

Experimental and numerical analysis of micromechanical damage in the punching process for High-Strength Low-Alloy steels [PDF]

open access: yes, 2014
Sequential sheet metal forming processes can result in the accumulation of work hardening and damage effects in the workpiece material. The mechanical strength of the final component depends on the “evolution” of these two characteristics in the ...
ACHOURI, Mohamed   +3 more
core   +3 more sources

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Fatigue Damage Accumulation Modeling of Metals Alloys under High Amplitude Loading at Elevated Temperatures

open access: yesMetals, 2018
This article presents an approach related to the modeling of the fatigue life of constructional metal alloys working under elevated temperature conditions and in the high-amplitude load range.
Jarosław Szusta, Andrzej Seweryn
doaj   +1 more source

Survival Outcomes and Complications Among Canadian Children With Retinoblastoma: A Population‐Based Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Retinoblastoma (RB) is the most common pediatric ocular cancer, yet population‐based data on survival and risk factors remain limited. This study aimed to describe survival in a large national RB cohort and identify predictors of death and complications.
Samuel Sassine   +14 more
wiley   +1 more source

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