Results 31 to 40 of about 397,616 (298)

A comparative study of the elasto-plastic properties for ceramic nanocomposites filled by graphene or graphene oxide nanoplates

open access: yesNanotechnology Reviews, 2022
As nanoscale reinforcements, the graphene and graphene oxide nanoplates exhibit distinct mechanical and physical properties. The determination of the effective elasto-plastic behavior of nanoplate/ceramic nanocomposites and the different filling effects ...
Ma Lian-Hua   +3 more
doaj   +1 more source

Shape-based defect classification for Non Destructive Testing

open access: yes, 2015
The aim of this work is to classify the aerospace structure defects detected by eddy current non-destructive testing. The proposed method is based on the assumption that the defect is bound to the reaction of the probe coil impedance during the test ...
D'Angelo, Gianni, Rampone, Salvatore
core   +1 more source

Non-Destructive Evaluation of Hidden Defects Beneath the Multilayer Organic Protective Coatings Based on Terahertz Technology

open access: yesFrontiers in Physics, 2021
An organic protective coating system plays an important role for the corrosion protection of offshore metallic structures. It is of practical importance to detect possible coating defects and evaluate coating performance for corrosion degradation ...
Wanli Tu   +3 more
doaj   +1 more source

Breaking the resolution limit in photoacoustic imaging using non-negativity and sparsity

open access: yesPhotoacoustics, 2020
The spatial resolution achievable in photoacoustic imaging decreases with the imaging depth, resulting in blurred images for deeper structures. Apart from technical limitations, the ultimate resolution limit results from the second law of thermodynamics.
P. Burgholzer   +2 more
doaj   +1 more source

Effects of cellulose nanofibers on flexural behavior of carbon-fiber-reinforced polymer composites with delamination

open access: yesScience and Engineering of Composite Materials, 2023
Understanding the influence of delamination defects on the damage evolution behavior of carbon-fiber-reinforced polymers (CFRPs) is crucial to improve their engineering applications. This study examined the flexural damage behaviors of CFRP composites by
Liu Ran   +6 more
doaj   +1 more source

Parallel double-plate capacitive proximity sensor modelling based on effective theory

open access: yesAIP Advances, 2014
A semi-analytical model for a double-plate capacitive proximity sensor is presented according to the effective theory. Three physical models are established to derive the final equation of the sensor. Measured data are used to determine the coefficients.
Nan Li, Haiye Zhu, Wenyu Wang, Yu Gong
doaj   +1 more source

Sirolimus for Extracranial Arteriovenous Malformations: A Scoping Review of the Evidence in Syndromic and Non‐Syndromic Cases

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Arteriovenous malformations (AVMs) are rare, high‐flow, vascular anomalies that can occur either sporadically or as part of a genetic syndrome. AVMs can progress with serious morbidity and even mortality if left unchecked. Sirolimus is an mTOR inhibitor that is effective in low‐flow vascular malformations; however, its role in AVMs is unclear.
Will Swansson   +3 more
wiley   +1 more source

Fiber-optic annular detector array for large depth of field photoacoustic macroscopy

open access: yesPhotoacoustics, 2017
We report on a novel imaging system for large depth of field photoacoustic scanning macroscopy. Instead of commonly used piezoelectric transducers, fiber-optic based ultrasound detection is applied.
Johannes Bauer-Marschallinger   +4 more
doaj   +1 more source

Scanning Tunneling Microscopy of Intermediate Transformation Structures in Electric Arc Surfacing Modified with Titanium Carbonitrides on Pipe Steel

open access: yesCrystals, 2023
In the present paper, the structure of electric arc coatings modified with nanodispersed titanium carbonitride additives on low-carbon pipe steel is studied using optical, scanning tunneling, and transmission electron microscopy.
Kuznetsov Pavel   +2 more
doaj   +1 more source

Inspection and diagnosis tests for structural safety evaluation: A case study [PDF]

open access: yes, 2005
Diagnosis and assessment of existing structures is a developing area due to the appearance of a high number of building defects, structural and non-structural deterioration and precocious loss of quality, and, consequently, lower expected durability ...
Cunha, P.   +4 more
core   +1 more source

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