Results 1 to 10 of about 971,936 (265)

Intensity Normalisation of GPR C-Scans

open access: yesRemote Sensing, 2023
The three-dimensional (3D) ground-penetrating radar (GPR) has been widely applied in subsurface surveys and imaging, and the quality of the resulting C-scan images is determined by the spatial resolution and visualisation contrast.
Tess X. H. Luo   +2 more
doaj   +3 more sources

Characterizing the Layer Structures of the Lacquerware From the Palace Museum by Terahertz Imaging in Reflection Geometry

open access: yesFrontiers in Physics, 2021
Chinese lacquerware is an important invention of arts and crafts in China. In this study, Chinese lacquerware is characterized using terahertz reflectometric imaging.
Hongfei Zhang   +3 more
doaj   +1 more source

Pre-Reset the R/W Head to Zero Track in SCAN and C-SCAN Disk Scheduling Algorithm

open access: yesAl-Iraqia Journal for Scientific Engineering Research, 2022
According to a high gap between the bounded developments in disk scheduling algorithms in contrast to processor speed and memory capacity developments, so successive improving disk scheduling algorithms is almost needed to reduce the overall time ...
Assist. Professor Ahmed Mohamed Malallah
doaj   +1 more source

Multi-mode ultrasonic visualization of porosity in composites using a focused transducer with high sensitivity and near-surface resolution

open access: yesComposites Part C: Open Access, 2021
Porosity ranging from 0.15% to 2.33% in carbon fiber-reinforced polymer composites (CFRPs) is detected and characterized by multi-mode visualizations including ultrasonic A-Scan, B-Scan, C-Scan and Tomography-Scan using a focused ultrasonic transducer ...
Junwei Shi   +3 more
doaj   +1 more source

Evaluation of quantitative ultrasonic C-scan testing for refill friction stir spot welding joints based on time-frequency analysis

open access: yesMaterials Research Express, 2023
This paper focuses on a comparative study of different ultrasonic feature-based C-scan testing imaging methods for characterizing refill friction stir spot welding (RFSSW) joints, and accurately identifying and measuring the nugget boundary.
Hua Zhong   +6 more
doaj   +1 more source

Impact of different scan strategies and implant angulation on impression accuracy of full arch multiple implant: an in vitro study

open access: yesBrazilian Dental Science, 2022
Objective: to evaluate the impact of three different scan strategies and implant angulation on impression accuracy of an intraoral scanner for full-arch multiple implant scan.
Danilo Lopes   +4 more
doaj   +1 more source

C-scan ultrasonography in orbital diagnosis. [PDF]

open access: yesBritish Journal of Ophthalmology, 1977
A C-scan imaging facility has recently been added to the ultrasonic system in use at Moorfields Eye Hospital, London. The technique is explained and typical C-scans are presented to demonstrate the normal orbital fat and optic nerve, together with selected pathological conditions in the orbit. The C-scan facility permits imaging of the orbital contents
M, Restori, J E, Wright
openaire   +2 more sources

When a road traffic accident leads to a skull metastasis from hepatocellular carcinoma: A unique case presentation

open access: yesInterdisciplinary Neurosurgery, 2020
Background: Hepatocellular carcinoma (HCC) is the most common primary tumor of the liver, responsible for significant morbidity and mortality worldwide.
Safwan O. Alomari   +4 more
doaj   +1 more source

Prediction Score for Cervical Spine Fracture in Patients with Traumatic Neck Injury

open access: yesNeurology Research International, 2021
Background. Cervical spine fracture is approximately 2%–5%. Diagnostic imaging in developing countries has several limitations. A computed tomography scan is not available 24 hours and not cost-effective.
Natsinee Athinartrattanapong   +5 more
doaj   +1 more source

Spatiotemporal Scan and Age-Period-Cohort Analysis of Hepatitis C Virus in Henan, China: 2005-2012. [PDF]

open access: yesPLoS ONE, 2015
Studies have shown that hepatitis C virus (HCV) infection increased during the past decades in China. However, little evidence is available on when, where, and who were infected with HCV.
Fangfang Chen   +11 more
doaj   +1 more source

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