Results 21 to 30 of about 88,367 (250)

The Cyclic Stability of the Superelasticity in Quenched and Aged Ni₄₄Fe₁₉Ga₂₇Co₁₀ Single Crystals

Metals, 2023
The effect of aging (at 773 K for 1 h) on the cyclic stability of superelasticity was studied in preliminarily quenched (after annealing at 1448 K for 1 h) Ni44Fe19Ga27Co10 [001]-oriented single crystals.
Ekaterina Timofeeva, Elena Panchenko, Maria Zherdeva, Aida Tokhmetova, Yuriy I. Chumlyakov   +4 more
doaj   +1 more source

Effects of hot rolling temperature and aging on the second phase particles of Zr-Sn-Nb-Fe zirconium alloy

Nuclear Materials and Energy, 2019
Various processes were used to prepare Zr-0.4Sn-1Nb-0.3Fe zirconium alloy plate samples, including hot rolling at 620,650,700℃ without aging and hot rolling at 700℃ after aging with 10 and 50 h at 480℃, respectively.
Qingsong Fan, Bo Yuan, Meng Xie, Minghua Shi, Jun Zhou, Zhongbo Yang, Wenjin Zhao   +6 more
doaj   +1 more source

Non-Uniform Aging Diagnosis of High-Voltage Machine Stator-Winding Insulation Using Multi-Indicator Fusion of Dielectric Spectra

Energies
Accurate assessment of the stator-winding insulation condition in high-voltage machines is crucial for safe operation. Conventional evaluation methods treat the insulation as spatially uniform and provide only a holistic assessment; in practice, however,
Zongbao Gao, Guoqiang Gao, Dong Yang, Jing Zhang   +3 more
doaj   +1 more source

AGING EFFECTS ON SHIP STRUCTURAL INTEGRITY

Brodogradnja, 2017
The most important degradation effects of ship structures are corrosion and fatigue cracks. Both of these aging effects have clear consequences of increasing the level of stresses and degrading the strength of ship structures for almost all relevant ...
Joško Parunov, Yordan Garbatov, Paul Jurišić   +2 more
doaj   +1 more source

Non-uniformity in the healthy patellar tendon is greater in males and similar in different age groups

Journal of Biomechanics, 2018
There is increasing evidence that tendons are heterogeneous and take advantage of structural mechanisms to enhance performance and reduce injury. Fascicle-sliding, for example, is used by energy-storing tendons to enable them to undergo large extensions while protecting the fascicles from damage.
Slane, Laura Chernak, Dandois, Felix, Bogaerts, Stijn, Vandenneucker, Hilde, Scheys, Lennart   +4 more
openaire   +3 more sources

The GET pathway is a major bottleneck for maintaining proteostasis in Saccharomyces cerevisiae

Scientific Reports, 2023
A hallmark of aging in a variety of organisms is a breakdown of proteostasis and an ensuing accumulation of protein aggregates and inclusions. However, it is not clear if the proteostasis network suffers from a uniform breakdown during aging or if some ...
Rebecca Josefson, Navinder Kumar, Xinxin Hao, Beidong Liu, Thomas Nyström   +4 more
doaj   +1 more source

Evaluation of fracture resistance of zirconia monolithic restorations: an in vitro study

Brazilian Dental Science, 2021
Objective: The aim of the study was to evaluate fracture resistance of zirconia monolithic restorations after ageing procedures. Material and methods: The fracture resistance of zirconia-based restoration after ageing procedures was evaluated ...
Ahmed Mohamed Arafa, Ahmad El-Kouedi, Tamer Hamza, Hisham Katamish   +3 more
doaj   +1 more source

Cardiac ventricular performance in the appropriate‐ for‐gestational age and small‐for‐gestational age fetus: relation to regional cardiac non‐uniformity and peripheral resistance [PDF]

Ultrasound in Obstetrics & Gynecology, 2002
AbstractObjectiveTo investigate the relationship between parameters of diastolic function, loading conditions and remodeling of the left ventricle in the appropriate‐for‐gestational age and small‐for‐gestational age fetus.MethodsTwo‐dimensional echocardiographic left ventricular images were digitized in 24 appropriate‐for‐gestational age and 14 small ...
P, Tsyvian, K, Malkin, O, Artemieva, F, Blyakhman, J W, Wladimiroff   +4 more
openaire   +2 more sources

Mitigation of mismatch power loss in aged photovoltaic arrays following a comparative investigation into module rearrangement techniques

Energy Reports, 2022
Power degradation due to non-uniform aging is a common phenomenon in large photovoltaic array systems. Aging increases the current–voltage mismatch in the array modules that results in mismatch power loss in the array.
Ahmed Al Mansur, Md. Ruhul Amin, Mohammad Asif ul Haq, Md. Hasan Maruf, Md. Mozaharul Mottalib, Ratil H. Ashique, A.S.M. Shihavuddin   +6 more
doaj   +1 more source

Characterization of the anodic oxide layer deposited on severely deformed and aged AA6063 aluminum alloy

Journal of Materials Research and Technology, 2021
The aim of this study was to investigate the effects of severe plastic deformation (SPD) and thermal treatment on the nanostructure and properties of the anodic oxide layer of AA6063.
Maryam Mehdizade, Ali Reza Eivani, Mansour Soltanieh   +2 more
doaj   +1 more source