Results 101 to 110 of about 40,507 (308)
e-Journal of Nondestructive TestingThis study introduces a rapid, on-site method to evaluate cold joint severity in concrete using surface wave group velocity dispersion curves. We examined a concrete plate where an untreated pouring surface, created seven days after a formwork failure ...
Chia-Chi Cheng +3 more
doaj +1 more source
Group velocity of dielectric waveguide modes [PDF]
, 1968 The group velocity and dispersion of surface-wave nodes propagating along a circular dielectric rod are computed and presented graphically in normalised form.
Laybourn, P.J.R.
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Advancing Age Modulates Associations Between Cognitive Impairment and Brain Volumes in Early MS
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Introduction Cognitive impairment is common in multiple sclerosis (MS), but manifestations following the first demyelinating event are relatively unexplored. We investigated cross‐sectional associations between magnetic resonance imaging (MRI)–derived brain volumes and the presence of cognitive impairment outcomes five years after the first ...
Piriyankan Ananthavarathan +14 more
wiley +1 more source
Spectral and Dispersion Properties of Long Period Fiber Grating for Optical Communication Systems
Advanced Electromagnetics, 2018 Present work deals with the analytical study of spectral and dispersion properties of long period fiber grating (LPFG) under linear regime. The standard parameters in the understanding of the optical features of an LPFG have been analyzed using the ...
V. Jain, S. Pawar, S. Kumbhaj, P.K. Sen
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A Study of Group Velocity Dispersion of Single-Mode Optical Waveguide Utilizing Siloxane Polymer
, 1999 We have developed a single-mode optical waveguide utilizing siloxane polymer on ceramic substrate for opto-electronic multichip modules (O/E-MCM) to operate Tera bps.
K. Kaneko, S. Tanahashi, Y. Ueno
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Cognitive impairment is a common non‐motor symptom in Multiple Sclerosis (MS), negatively affecting autonomy and Quality of Life (QoL). Innovative rehabilitation strategies, such as semi‐immersive virtual reality (VR) and computerized cognitive training (CCT), may offer advantages over traditional cognitive rehabilitation (TCR ...
Maria Grazia Maggio +8 more
wiley +1 more source
Evidence of zero group velocity at the lowest dispersion branch through local interactions
APL MaterialsZero group velocity (ZGV) modes can be utilized in many applications in both optics and acoustics. There exist numerous realizations of metamaterials with ZGVs at higher dispersion branches.
Mahmoud M. Samak, Osama R. Bilal
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Calculation of Guided Wave Dispersion Characteristics Using a Three-Transducer Measurement System
Applied Sciences, 2018 Guided ultrasonic waves are of significant interest in the health monitoring of thin structures, and dispersion curves are important tools in the deployment of any guided wave application.
Borja Hernandez Crespo +2 more
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Experimental measurement of group velocity dispersion in photonic crystal fibre
, 1999 The authors report measurements of group velocity dispersion in photonic crystal fibre using low coherence techniques. The results confirm theoretical predictions that photonic crystal fibre, unlike conventional step-index fibre, can exhibit anomalous ...
Gander, M. J. +6 more
core
Broadband giant group velocity dispersion in asymmetric InP dual layer, dual width waveguides
, 2017 Highly dispersive components enable photonic-integrated circuits for ultrafast optical pulse processing. This paper presents the design of an InP device with resonant giant group velocity dispersion.
Kjellman, JO Jon +8 more
core +1 more source