Results 41 to 50 of about 150,124 (289)

Speckle pattern generation for DIC using UAVs

, 2023
LAUREA MAGISTRALELa correlazione delle immagini digitali (DIC) è una tecnica di misurazione che utilizza la visione computerizzata per misurare gli spostamenti e le deformazioni; questa tecnica si basa sulla generazione di un pattern di speckle sulla ...
Carabali Caicedo, Jorge Luis
core  

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

Advanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat, D. Anjaria, I. Woo, C. Bean, D. Texier, J. C. Stinville   +5 more
wiley   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

An unusual presentation of carcinoma stomach

The Pan African Medical Journal, 2013
Symptomatic gastric malignancy usually presents with symptoms which mimic peptic ulcer disease.Usual presenting features include weight loss and abdominal pain. Other symptoms include nausea, vomiting, dysphagia, melena and early satiety.
Jeffey George, Deepak Kochummen Johnson, Rajneesh Anugraha Rajan, Sandesh Kolassery, Ramachandran Mavali Thazhath   +4 more
doaj   +1 more source

Low Cycle Repetitive Loading of Ti‐6Al‐4V‐Epoxy Composite Lattice Structures for Enhanced Energy Dissipation and Damage Tolerance

Advanced Engineering Materials, EarlyView.
Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon, Jordan Noronha, Justin Dirrenberger, Andrey Molotnikov   +3 more
wiley   +1 more source

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

Advanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle, María Ángeles Navacerrada, Johan Christensen, Carlos González   +3 more
wiley   +1 more source

Disseminated intravascular coagulation in perinatal medicine

Акушерство, гинекология и репродукция, 2020
Introduction. Disseminated intravascular coagulation (DIC) is an acquired syndrome characterized by intravascular activation of blood clotting without specific localization and arising from various causes.
M. A. Mingalimov, K. N. Grigorieva, M. V. Tretyakova, I. Elalamy, Kh. G. Sultangadzhieva, V. O. Bitsadze, J. Kh. Khizroeva, A. D. Makatsariya   +7 more
doaj   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

Advanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi, Kimiya Tajik, Harvey Shaw, Matti Isakov, Sami Pajunen, Lauri Rautkari   +5 more
wiley   +1 more source

Intravenous leiomyomatosis involved cor dextrum: A review of diagnosis and management with an illustrative case

Radiology Case Reports
Intravenous leiomyomatosis (IVL) is a benign disease that originates in the uterus and is characterized by aggressive intravenous growth that can extend to the inferior vena cava and even involve the intracardiac cavity.
Tiansheng Li, MM, Kai Yang, MB, Weiyuan Huang, MD, Feng Chen, MD   +3 more
doaj   +1 more source

Localized damage analysis for high strength S960 steel using micro-tensile testing and digital image correlation

Ubiquity Proceedings, 2018
In-situ interrupted tensile tests combined with Digital Image Correlation (DIC) were performed on S960 hot rolled steel to identify damage initiation on the surface of the sample. Shear bands and damage initiation and evolution in the microstructure were
R.G. Dowding, C. Pinna, H. Ghadbeigi, D. Farrugia   +3 more
doaj   +1 more source