Results 31 to 40 of about 5,098 (179)
Rician Beamforming: Despeckle Method via Coarray Projection Stochastic Analysis
Applied Sciences, 2020 Current computation capabilities normal, Delay and Sum (DAS) and Total Focusing Method (TFM) allow new definitions for beamformers. In this paper, a new beamforming method is proposed. It exploits diversity across pixel data after focusing process.
Virginia Yagüe-Jiménez +3 more
doaj +1 more source
The detection of flaws in austenitic welds using the decomposition of the time reversal operator [PDF]
, 2016 The non-destructive testing of austenitic welds using ultrasound plays an important role in the assessment of the structural integrity of safety critical structures.
Bird, Colin +5 more
core +1 more source
Research on defect quantification technique of Sparse array Total focusing method imaging based on Coherence factor weighting [PDF]
EPJ Web of ConferencesAdditive manufacturing technology is widely used in key components in the aerospace field due to its high manufacturing freedom and high precision. However, in the process of internal quality inspection of products, the signal attenuation caused by ...
Da Kang +6 more
doaj +1 more source
Inspection for non-planar shaped welded joints of pipes using FMC ultrasonic technique
e-Journal of Nondestructive Testing, 2023 In applying ultrasonic testing (UT) to pipes with welded joints, one of the challenges is about the access limitation of UT probes caused by non-planar weld reinforcement profiles.
Sho Yamaguchi +2 more
doaj +1 more source
Complex railway systems: capacity and utilisation of interconnected networks [PDF]
, 2016 Introduction Worldwide the transport sector faces several issues related to the rising of traffic demand such as congestion, energy consumption, noise, pollution, safety, etc.
Malavasi, Gabriele +2 more
core +1 more source
Comparison of Ultrasonic Methods for Detecting Defects in Unidirectional Composite Material
Materials Research, 2021 Non-destructive tests are of pivotal importance in the industry, as they contribute to the decreasing of maintenance costs, reducing downtime and accidents.
Vanessa Vieira Gonçalves +2 more
doaj +1 more source
Research and Review Journal of Nondestructive Testing, 2023 Additive manufacturing (AM) is rapidly becoming a viable manufacturing method for industrial metallic parts. This is related to the benefits achieved, such as reducing material wastage, an increase in design freedom and weight savings.
C. Sofia Proença +3 more
doaj +1 more source
Sensors, 2020 Plane wave imaging (PWI) is attracting more attention in industrial nondestructive testing and evaluation (NDT&E). To further improve imaging quality and reduce reconstruction time in ultrasonic imaging with a limited active aperture, an optimized PWI ...
Hao Sui +3 more
doaj +1 more source
Aerospace, 2023 Carbon fiber-reinforced polymers (CFRP) are extensively used in aerospace applications. Out-of-plane wrinkles frequently occur in aerospace CFRP parts that are commonly large and complex.
Tengfei Ma +3 more
doaj +1 more source
Accurate 3D reconstruction of bony surfaces using ultrasonic synthetic aperture techniques for robotic knee arthroplasty [PDF]
, 2017 Robotically guided knee arthroplasty systems generally require an individualized, preoperative 3D model of the knee joint. This is typically measured using Computed Tomography (CT) which provides the required accuracy for preoperative surgical ...
Kerr, William +2 more
core +1 more source