Results 101 to 110 of about 10,858,201 (300)

NEAR SURFACE VELOCITY STRUCTURE OF ANDALUCIA (SOUTHERN SPAIN) AND ALBORAN SEA REGION FROM 0.15-2.0 HZ RAYLEIGH WAVES

Tecnociencia, 2004
  A methodology that has been applied for a relatively short time on Seismology is the modelling of very shallow structures from the inversion of dispersion values (group velocity of short period Rg waves).
M. Chourak, M. Navarro, J. Badal
doaj  

Amplification of Frequency-Modulated Similariton Pulses in Length-Inhomogeneous Active Fibers

International Journal of Optics, 2012
The possibility of an effective gain of the self-similar frequency-modulated (FM) wave packets is studied in the length-inhomogeneous active fibers. The dynamics of parabolic pulses with the constant chirp has been considered. The optimal profile for the
I. O. Zolotovskii, D. I. Sementsov, A. A. Sysolyatin, A. S. Belanov, M. S. Yavtushenko   +4 more
doaj   +1 more source

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.
Ripalta Stabile, Kevin A. Williams, Kjellman, J.Ø., Stabile, R., Williams, K.A., Jon Oyvind Kjellman   +5 more
core   +1 more source

Plasma EV Proteomics Identifies ECM Remodeling and Inflammatory Proteins LUM and C7 as Candidate Biomarkers in FSHD

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Facioscapulohumeral muscular dystrophy (FSHD) is one of the most debilitating and common muscular dystrophies. Despite its severity, no approved therapy exists for FSHD patients. However, several therapeutic candidates are currently under development, and some have recently entered clinical trials, marking the need for reliable ...
Mustafa Bilal Bayazit, Chiranth K. Nagaraj, Jackson S. Newell, Kim Truc Nguyen, Xilal Y. Rima, Jacob Doon‐Ralls, Eduardo Reátegui, Jeffrey M. Statland, Rabi Tawil, Kevin M. Flanigan, Scott Q. Harper, Nizar Y. Saad   +11 more
wiley   +1 more source

Evidence of zero group velocity at the lowest dispersion branch through local interactions

APL Materials
Zero 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
doaj   +1 more source

Evaluating Cold Joint Damage in Concrete Using Surface Wave Dispersion Velocity Profiles: A Field Study

e-Journal of Nondestructive Testing
This 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, Yung-Chiang Lin, Ting-Yu Lin, Hong-Yao Cai   +3 more
doaj   +1 more source

Digital Cognitive Phenotyping for Differential Diagnosis and Monitoring in Neurological Conditions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To assess the utility, accessibility, and equivalence to supervised scales of online cognitive assessment in older individuals with cognitive impairment. Methods Patients with Alzheimer's disease (AD, n = 31), idiopathic normal pressure hydrocephalus (iNPH, n = 26), and traumatic brain injury (TBI, n = 23) completed online cognitive ...
Martina Del Giovane, Valentina Giunchiglia, Michael C. B. David, Magdalena A. Kolanko, William R. Trender, Peter J. Hellyer, Harmeena Kaur, David J. Sharp, Christopher Carswell, Paresh A. Malhotra, Adam Hampshire   +10 more
wiley   +1 more source

Spectral dispersion and thermo optic coefficient for Silicon material

Muthanna Journal of Pure Science
In this study, the first derivatives of this equation with respect to temperature (thermo-optic coefficients) and wavelength (spectral dispersion) were derived in the MATLAB software, and a special code was written to solve the equations and found for ...
Iqbal Adel Jbain Jbain
doaj   +1 more source

Upper Cervical Cord Area as a Biomarker of Conversion to Secondary Progressive Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study assessed whether upper cervical cord area (UCCA) measured on routine brain MRI can serve as a biomarker of conversion to SPMS. Methods This is a single‐center retrospective cohort study of RRMS patients with cross‐sectional and longitudinal analyses of clinical and MRI data. Future SPMS converters were matched by age, sex,
Nabil K. El Ayoubi, Sola Al Ghazal, Salem Hannoun, Medhat A. Siddik, Nour M. Najjar, Jim Dagher, Joseph Abboud, Myriam G. Semaan, Samia J. Khoury   +8 more
wiley   +1 more source

Two‐Stage Framework for Precise Measurement of Marsquake Surface Wave Group Velocity Dispersion

Earth and Space Science
Surface wave dispersion analysis is crucial for investigating crustal and mantle structures on Earth and other celestial bodies. On Mars, Rayleigh and Love waves have been detected, with Rayleigh waves exhibiting vertical and radial motion and Love waves
Weijia Sun, Jiamin Hu, Jiaqi Li, Yongxin Pan   +3 more
doaj   +1 more source