Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Timothy W. Chevalier"'
Validation of an ambient measurement system (AMS) for physical activities in a paediatric population
Autor:
Timothy W. Chevalier, Zebadiah M Kimmel, James Signorovitch, Gautam Sajeev, Jorge A Quiroz, Jonathan S. Varsanik, Genevieve A. Laforet, Valeria Ricotti
Publikováno v:
Journal of Medical Engineering & Technology. 43:182-189
Ambient measurement systems (AMSs) can enable continuous assessment of functional performance at home, increasing the availability of data for monitoring of neuromuscular disease. An AMS passively measures movement whenever someone is in range of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80fcc412551e4cba01a27fc23ac708c7
https://doi.org/10.1080/03091902.2019.1640308
https://doi.org/10.1080/03091902.2019.1640308
Autor:
Zebadiah M Kimmel, Jonathan S. Varsanik, Elkan F. Halpern, Timothy W. Chevalier, Francois Bethoux, Darlene Stough
Publikováno v:
Gait & Posture. 61:393-397
Walking speed is an important measure of gait impairment in multiple sclerosis (MS). The clinical assessment of walking speed requires dedicated time, space, and personnel, and may not accurately gauge real-world performance. The term "Ambient Measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::258ed7716da3c2e28d00939357db619c
https://doi.org/10.1016/j.gaitpost.2018.01.033
https://doi.org/10.1016/j.gaitpost.2018.01.033
Publikováno v:
IEEE Transactions on Antennas and Propagation. 56:2454-2468
The current distribution and input impedance of an electric dipole antenna operating in a cold magnetoplasma at very low frequency (VLF) is determined through numerical simulation. A full wave solution of Maxwell's equations using a finite-difference
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a2335eb48e8000af029adfd4e964bf3
https://doi.org/10.1109/tap.2008.927497
https://doi.org/10.1109/tap.2008.927497
Publikováno v:
IEEE Transactions on Antennas and Propagation. 54:2424-2429
The perfectly matched layer (PML) in its most current form has shortcomings in certain cases involving propagation in anisotropic media, such as the whistler mode in a magnetized plasma, for which the vector component normal to the PML of the group v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbae14445d6535d959efbc24c733f278
https://doi.org/10.1109/tap.2006.879220
https://doi.org/10.1109/tap.2006.879220
Publikováno v:
SPIE Proceedings.
Identifying the ground within a ground penetrating radar (GPR) image is a critical component of automatic and assisted target detection systems. As these systems are deployed to more challenging environments they encounter rougher terrain and less-id
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35f749ea597fe0cad1a48644a29b9df3
https://doi.org/10.1117/12.2016615
https://doi.org/10.1117/12.2016615
Publikováno v:
SPIE Proceedings.
Prior to the calculation of target detection features, ground penetrating radar (GPR) data typically requires extensive preprocessing to suppress clutter artifacts and enhance signals corresponding to weaker targets. Optimization of this GPR signal p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c0df175843db34d65326363a90336de
https://doi.org/10.1117/12.2016617
https://doi.org/10.1117/12.2016617
Publikováno v:
Radio Science. 45
[1] The electrostatic sheath formation surrounding an electric dipole antenna at very low frequencies (VLF) in a magnetoplasma is examined through numerical simulation. In this paper, a hydrodynamic approach is used to solve for the nonlinear sheath
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a96f39c985e385bb0150c9ab6e2d53f3
https://doi.org/10.1029/2008rs003843
https://doi.org/10.1029/2008rs003843
Publikováno v:
Geophysical Research Letters. 35
[1] We propose a new mechanism for lightning-induced perturbations to VLF transmitter signals known as Early VLF events. This mechanism involves electron density changes due to electromagnetic pulses (EMP) from successive in-cloud lightning discharge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d953da3217cfa209dbe58100663a18f0
https://doi.org/10.1029/2008gl035358
https://doi.org/10.1029/2008gl035358
Publikováno v:
Geophysical Research Letters. 34
[1] The HAARP HF facility is used to modulate the components of the auroral electrojet that flow in the D-region of the ionosphere, creating ELF/VLF radiation which is then measured at a receiver co-located with the HAARP HF antenna. An HF heating mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::041db7376f132b1732c7cb05052c4aa1
https://doi.org/10.1029/2007gl031724
https://doi.org/10.1029/2007gl031724
Publikováno v:
2007 IEEE Antennas and Propagation Society International Symposium.
In this paper, we apply a recently developed Segmented-Long-Path (SLP) Finite Difference Frequency Domain (FDFD) model of VLF propagation over long (tens to hundreds of wavelengths) paths to determine the coupling of wave energy through the collision
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d6fe3e8ff093d40dfaf3d930a578392
https://doi.org/10.1109/aps.2007.4395921
https://doi.org/10.1109/aps.2007.4395921