Scanning laser techniques for characterisation of different surface breaking defect geometries [PDF]
, 2012 Measurements using a laser scanning system consisting of a pulsed Nd:YAG laser to generate surface ultrasonic waves and an interferometer to detect the surface displacement, are presented for different samples and defect geometries.
Clough, A. R. +4 more
core
TBK1‐Associated Primary Lateral Sclerosis Followed by Right Temporal Variant Frontotemporal Dementia
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT We report a 58‐year‐old woman with a novel splice‐site variant in the TANK‐binding kinase 1 (TBK1:c.993–2A>C p.Ala332TyrfsTer39) who sequentially developed primary lateral sclerosis (PLS) followed by right temporal variant frontotemporal dementia (rtvFTD). Neuroimaging demonstrated right anterior temporal atrophy before cognitive symptoms, and
Tomoyasu Matsubara +18 more
wiley +1 more source
Sensors, 2014 In this research, the sensitivity distribution properties of a phase-shifted fiber Bragg grating (PS-FBG) to ultrasonic waves were investigated employing the surface attachment method.
Qi Wu +3 more
doaj +1 more source
Ultrasonic detection and measurement of fatigue cracks in notched specimens [PDF]
Ultrasonic detection and measurement of fatigue crack propagation in notched specimens of aluminum, titanium, and cobalt alloys and maraging ...
Freche, J. C., Klima, S. J.
core +1 more source
Developmental and Epileptic Encephalopathy due to Biallelic Pathogenic Variants in PIGM
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective PIGM encodes a critical enzyme in the glycosylphosphatidylinositol (GPI)‐anchor biosynthesis pathway. While promoter‐region mutations in PIGM have been associated with a relatively mild phenotype characterized by portal vein thrombosis and absence seizures, recent evidence suggests that coding‐region mutations result in a more severe
Júlia Sala‐Coromina +11 more
wiley +1 more source
Assessment of probability of detection of delaminations in fiber-reinforced composites [PDF]
Delamination is one of the critical defects in composite materials and structures. An ultrasonic C-scan imaging technique which maps out the acoustic impedance mismatched areas with respect to the sample coordinates, is particularly well suited for ...
Chern, E. J., Chu, H. P., Yang, J. N.
core +1 more source
The effect of vegetation density on sampling volume by ultrasonic bat detectors (AnabatIIÆ) [abstract] [PDF]
, 2004 only availableFaculty Mentor: Dr. Rose-Marie Muzika, ForestryUltrasonic detectors are becoming more common as a means of sampling bat activity and abundance. Many factors must be taken into consideration when using ultrasonic detectors, however.
Motsinger, Jonathan R.
core
Deciphering acoustic emission signals in drought stressed branches: the missing link between source and sensor [PDF]
, 2015 When drought occurs in plants, acoustic emission (AE) signals can be detected, but the actual causes of these signals are still unknown. By analyzing the waveforms of the measured signals, it should, however, be possible to trace the characteristics of ...
Hamstad, Marvin A +3 more
core +3 more sources
Neurovascular Contacts in the Pathophysiology of Neuralgic Amyotrophy: An Observational Study
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Neuralgic amyotrophy (NA) is a prevalent, monophasic, multifocal immune‐mediated neuropathy. A distinctive characteristic of the disease is the occurrence of nerve or fascicle constrictions and torsions (NA‐associated focal nerve lesions, NAFL). The pathophysiology underlying this phenomenon remains to be fully elucidated.
Johannes Fabian Holle +4 more
wiley +1 more source
Frequency response of underwater ultrasonic transducers in the near field using polarimetric polarization maintaining fiber sensors [PDF]
, 2010 Near-field ultrasonic response (50-2000 kHz) of an underwater 1-3 piezocomposite transducer is experimentally investigated using a polarimetric polarization maintaining fiber sensor.
Bennecer, Abdeldjalil +5 more
core +2 more sources