Results 31 to 40 of about 2,592 (294)

Elastoplastic and fracture behaviour of semi-crystalline polymers under multiaxial stress states [PDF]

Fracture and Structural Integrity, 2019
The deformation behaviour and fracture mechanisms of highdensity polyethylene (HDPE), polypropylene (PP) and polyamide 6 (PA 6) are investigated experimentally under different stress states and at different crosshead speeds of 1, 20 and 200 mm/min ...
Jo�o P. Manaia, Francisco A. Pires, Ab�lio M. P. de Jesus   +2 more
doaj   +1 more source

Calibration of a viscoplastic cohesive zone for the description of crazing in PMMA

, 2006
International audienceIn a numerical analysis of mode I fracture in amorphous polymers, Estevez et al. [Estevez R, Tijssens MGA, Van der Giessen E. Modelling of the competition between shear yielding and crazing in glassy polymers.
Olagnon, Christian, Seguela, Roland, Saad-Gouider, Nesrine, Estevez, Rafael   +3 more
core   +5 more sources

Analysing the mechanisms of failure in polycarbonate sheets deformed by SPIF

Journal of Materials Research and Technology
This article presents experimental research conducted on polycarbonate sheets deformed via single-point incremental forming (SPIF). Building upon established frameworks from previous studies, the analysis focuses on evaluating the formability and failure
A. Rosa-Sainz, J.P. Magrinho, M.F. Vaz, M.B. Silva, G. Centeno, C. Vallellano   +5 more
doaj   +1 more source

Online Detection of Surface Defects Based on Improved YOLOV3

Sensors, 2022
Aiming at the problems of low efficiency and poor accuracy in the product surface defect detection. In this paper, an online surface defects detection method based on YOLOV3 is proposed.
Xuechun Chen, Jun Lv, Yulun Fang, Shichang Du   +3 more
doaj   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

Scleral lens surface crazing in an eye with giant papillary conjunctivitis and keratoconus: Outcome of lens surface polishing

Journal of Clinical Ophthalmology and Research
We present a case of scleral lens surface crazing in a patient with keratoconus (KC) and chronic giant papillary conjunctivitis (GPC). A 45-year-old Asian male with known keratoconus (KC) and allergic eye disease in both eyes, who is an experienced ...
Soumen Sadhu, Asif Iqbal, Bhaskar Srinivasan, Prema Padmanabhan   +3 more
doaj   +1 more source

An in vitro study to compare the transverse strength of thermopressed and conventional compression-molded polymethylmethacrylate polymers

Indian Journal of Dental Research, 2013
Statement of Problem: Acrylic resins have been in the center stage of Prosthodontics for more than half a century. The flexural fatigue failure of denture base materials is the primary mode of clinical failure. Hence there is a need for superior physical
Anjana Raut, Polsani Laxman Rao, BVJ Vikas, T Ravindranath, Archana Paradkar, G Malakondaiah   +5 more
doaj   +1 more source

Breaking the Surface: Buoyant Metal–Polymer Open–Cell Hybrid Lattice Metamaterials

Advanced Materials, EarlyView.
Open‐cell metal–polymer lattice metamaterials that defy sinking. (a) Injection process of the polyurethane (PU) foam into the titanium (Ti‐6Al‐4V) hollow‐strut lattice creating the open‐cell Ti‐6Al‐4V+PU hybrid lattice, (b) flotation test of a hybrid lattice specimen, and (c) a digital representation and experimental validation of a marine buoy ...
Jordan Noronha, Joey Tallon, Raad Omar, Jason Dash, Andrey Molotnikov, Martin Leary, Milan Brandt, Ma Qian   +7 more
wiley   +1 more source

Functionalization and Surface Modification of Mesoporous Hydrophobic Membranes by Oligomers and Target Additives via Environmental Crazing

Membranes, 2023
This work offers an ecologically friendly and facile approach for the modification of high-tonnage commercial polymers, including polypropylene (PP), high-density polyethylene (HDPE), and poly(ethylene terephthalate) (PET), and preparation of ...
Alena Yu. Yarysheva, Semen N. Klyamkin, Larisa M. Yarysheva, Olga V. Arzhakova   +3 more
doaj   +1 more source

The craze with semaglutide

Asian Journal of Medical Sciences
Semaglutide (Ozempic acid) belongs to a class of drugs called glucagon-like peptide-1 (GLP-1) receptor agonists. These medications mimic the action of a hormone called GLP-1, which helps regulate blood glucose and promotes weight loss. One role of GLP-1 is to prompt the body to produce more insulin, which reduces blood sugar (glucose). Because of this,
Ruby Dhar, Arun Kumar, Subhradip Karmakar   +2 more
openaire   +2 more sources