Results 11 to 20 of about 971,936 (265)

Ultrasonic characterization of defective porcelain tiles

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2012
The aim of this work is the optimization of ultrasonic methods in the non-destructive testing of sintered porcelain tiles containing defects. For this reason, a silicon nitride ball, carbon black and PMMA (Polymethylmethacrylate) were imbedded in ...
Eren, E., Kurama, S., Janssen, R.
doaj   +1 more source

Computational Modeling of Ultrasound C-Scan Imaging Using Transmitted Signal Peak Density

open access: yesApplied Sciences, 2021
Ultrasound measurement is a relatively inexpensive and commonly used imaging tool in the health sector. The through-transmission process of ultrasound measurement has been extensively evaluated for detecting abnormalities in tissue pathology. Compared to
Koushik Paul   +5 more
doaj   +1 more source

SSCANL decoder based joint iterative detection and decoding algorithm

open access: yesDianxin kexue, 2022
In order to improve the receiver performance of the sparse code multiple access (SCMA) system based on polar codes, the cyclic redundancy check (CRC) aided joint iterative detection and decoding receiver scheme based on simplify soft cancellation list ...
Chongyang LIU, Rui GUO
doaj   +2 more sources

Enhancement CT Scan Image and Study Electronic, Structural and Vibrational Properties of Iobenguane

open access: yesIraqi Journal of Physics, 2021
This work is divided into two parts first part study electronic structure and vibration properties of the Iobenguane material that is used in CT scan imaging.
Ahlam Majead Kadhim   +2 more
doaj   +1 more source

Multiscale Spectral Analysis on Lysozyme Aqueous Solutions in the Presence of PolyEthyleneGlycol

open access: yesMolecules, 2022
Infrared spectroscopy measurements were performed on Lysozyme aqueous solutions also in the presence of PolyEthylene Glycol (PEG 400) as a function of an increasing temperature from T = 27 °C to 90 °C, and, successively in sequence, by decreasing ...
Maria Teresa Caccamo, Salvatore Magazù
doaj   +1 more source

1200 years of warm-season temperature variability in central Scandinavia inferred from tree-ring density [PDF]

open access: yesClimate of the Past, 2016
Despite the emergence of new high-resolution temperature reconstructions around the world, only a few cover the Medieval Climate Anomaly (MCA). Here we present C-Scan, a new Scots pine tree-ring density-based reconstruction of warm-season (April ...
P. Zhang   +4 more
doaj   +1 more source

Positive DAT-SCAN in SPG7: a case report mimicking possible MSA-C

open access: yesBMC Neurology, 2021
Background Spastic Paraplegia type 7 (SPG7) is one of the most common autosomal recessive Hereditary Spastic Paraplegias (HSP); Spastic Paraplegias (SPGs) can present as hereditary ataxias.
Gabriele Bellini   +5 more
doaj   +1 more source

A sensitivity analysis of numerical predictions for beryllium erosion and migration in ITER

open access: yesNuclear Materials and Energy, 2021
The present study addresses the uncertainties that affect the recently performed predictions of beryllium (Be) erosion and migration in ITER using the Monte-Carlo code ERO2.0. The focus of the study is a D–T baseline discharge with fusion power gain Q=10,
J. Romazanov   +10 more
doaj   +1 more source

ASSESSING THE SECURITY OF AN IT&C SYSTEM USING SCAN TESTS [PDF]

open access: yesAnnals: Series on engineering sciences (Academy of Romanian Scientists)
Cyber security has become a topic of strategic importance both internationally and nationally. In order to protect against cyber threats, it is essential to have an appropriate cyber security management system.
Valentin PAU   +2 more
doaj   +1 more source

Research progress of automated ultrasonic imaging detection technology for complex aircraft components

open access: yesJournal of Aeronautical Materials
Traditional ultrasonic automated non-destructive testing is a great challenge in the inspection of aviation components with complex surfaces. Complex surfaces can interfere with the formation of the focus in the sound beam,and the waveform transformation
CHEN Yao   +5 more
doaj   +1 more source

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