Results 91 to 100 of about 13,871 (285)

Innovative NDT technique for detection of surface cracks based on ferrofluids excited with DC and AC magnetic fields [PDF]

open access: yes, 2015
Innovative NDT technique for detection of surface cracks based on ferrofluids excited with DC and AC magnetic fieldsAn innovative NDT technique is proposed for surface inspection of materials not necessarily magnetic or conductive, based on local ...
Cabrera, Blai   +5 more
core   +2 more sources

Towards Clinical Translation of Intravoxel Incoherent Motion MRI: Acquisition and Analysis Consensus Recommendations

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Intravoxel incoherent motion (IVIM) MRI allows for simultaneous assessment of tissue microcirculation (perfusion) and diffusion of water. In single‐center studies, IVIM has shown great potential for diagnosis, treatment outcome prediction, and treatment monitoring for many different diseases and organs.
Eric E. Sigmund   +23 more
wiley   +1 more source

A pulsed eddy current system for flaw detection using an encircling coil on a steel pipe [PDF]

open access: yes, 2014
Conventional eddy current techniques have been used to a great extent for detection of surface breaking defects in conductive materials. However, detection of sub-surface defects is limited due to skin effect phenomena and material properties.
Majidnia, S, Nilavalan, R, Rudlin, J
core  

A MR Fingerprinting Development Kit for Quantitative 3D Brain Imaging

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Magnetic resonance fingerprinting (MRF) is an emerging quantitative imaging technique that enables multiparametric tissue characterization, but its adoption has been hindered by the complexity of data acquisition and post‐processing. These technical and implementation challenges have limited its broader clinical deployment.
Rasim Boyacioglu   +11 more
wiley   +1 more source

Free‐Breathing 3D Whole Heart and Aorta Cine MRI Without Contrast Agent—Comparison to Clinical Standard

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background The demand for cardiac MRI is increasing with the growing burden of cardiovascular disease. However, conventional protocols require sequential acquisitions for multi‐breath‐hold 2D cine and 3D MR angiography (MRA), which is time‐consuming.
Ruixin Chen   +7 more
wiley   +1 more source

Mapping Neurodegenerative Changes in Clinically Uncertain Parkinsonian Syndrome Patients Using Fast MR Spin TomogrAphy in Time‐Domain (MR‐STAT) Relaxometry at 3T

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background MR Spin TomogrAphy in Time‐domain (MR‐STAT) enables accelerated multiparametric relaxometry (T1/T2). Previous relaxometry studies predominantly compared Parkinson's disease patients with healthy controls (HC). The potential of relaxometry to distinguish neurodegenerative from non‐neurodegenerative parkinsonism in clinically ...
Martin B. Schilder   +15 more
wiley   +1 more source

Quantitative Detection of Cracks in Steel Using Eddy Current Pulsed Thermography

open access: yesSensors, 2018
Small cracks are common defects in steel and often lead to catastrophic accidents in industrial applications. Various nondestructive testing methods have been investigated for crack detection; however, most current methods focus on qualitative crack ...
Zhanqun Shi   +4 more
doaj   +1 more source

Prototyping of the ILC Baseline Positron Target

open access: yes, 2012
The ILC positron system uses novel helical undulators to create a powerful photon beam from the main electron beam. This beam is passed through a titanium target to convert it into electron-positron pairs.
Abbott, Ryan   +5 more
core   +1 more source

A modal approach for the solution of the non-linear induction problem in ferromagnetic media

open access: yes, 2016
The non-linear induction problem in ferromagnetic media is solved using the fixed-point iteration method, where the linearized problem at each iteration is treated by means of a modal approach.
Skarlatos, Anastassios   +1 more
core   +1 more source

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