Monitoring gait at home with radio waves in Parkinson's disease: A marker of severity, progression, and medication response. [PDF]
Sci Transl Med, 2022 Parkinson’s disease (PD) is the fastest-growing neurological disease in the world. A key challenge in PD is tracking disease severity, progression, and medication response. Existing methods are semisubjective and require visiting the clinic. In this work,
Liu Y +18 more
europepmc +2 more sources
Atmospheric drag effects on modelled low Earth orbit (LEO) satellites during the July 2000 Bastille Day event in contrast to an interval of geomagnetically quiet conditions [PDF]
Annales Geophysicae, 2021 In this work, we simulated the atmospheric drag effect on two model SmallSats (small satellites) in low Earth orbit (LEO) with different ballistic coefficients during 1-month intervals of solar–geomagnetic quiet and perturbed conditions. The goal of this
V. U. J. Nwankwo +10 more
doaj +1 more source
Tunable triple-band millimeter-wave absorbing metasurface based on nematic liquid crystal
AIP Advances, 2022 We propose and design a tunable triple-band millimeter-wave absorbing metasurface based on nematic liquid crystal (NLC). Numerical results based on both effective circuit model and full-wave simulations verify the triple-band absorption property.
Qiang Wang +4 more
doaj +1 more source
3D complex envelope leapfrog ADI‐FDTD algorithm
Electronics Letters, 2021 This paper presents a 3D complex envelope leapfrog alternating‐direction‐implicit finite‐difference time‐domain method. Compared with the previous work, the proposed method costs less computation runtime and memory while maintaining similar accuracy. The
Yunyang Dong, Jianyi Zhou
doaj +1 more source
Dynamo effects in gravity [PDF]
E3S Web of Conferences, 2019 Nonlinear oscillations in the dynamic system of gravitational and material fields are considered. The problems of singularities and caustics in gravity, expansion and baryon asymmetry of the Universe, wave prohibition of collapse into black holes, and ...
Shevtsov Boris
doaj +1 more source
Engineering, 2022 In current wireless communication and electronic systems, digital signals and electromagnetic (EM) radiation are processed by different modules. Here, we propose a mechanism to fuse the modulation of digital signals and the manipulation of EM radiation ...
Xiang Wan +12 more
doaj +1 more source
Fast radio bursts as synchrotron maser emission from decelerating relativistic blast waves [PDF]
Monthly notices of the Royal Astronomical Society, 2019 Fast radio bursts (FRBs) can arise from synchrotron maser emission at ultrarelativistic magnetized shocks, such as produced by flare ejecta from young magnetars. We combine particle-in-cell simulation results for the maser emission with the dynamics of
B. Metzger, B. Margalit, L. Sironi
semanticscholar +1 more source
Analysis of geomagnetic disturbances dynamics during increased solar activity and magnetic storms (according to the measurements of INTERMAGNET station network) [PDF]
E3S Web of Conferences, 2019 We present and describe an automated method for analysis of magnetic data and for detection of geomagnetic disturbances based on wavelet transformation.
Mandrikova Oksana +2 more
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Blast Waves from Magnetar Flares and Fast Radio Bursts [PDF]
Astrophysical Journal, 2019 Magnetars younger than one century are expected to be hyperactive: besides winds powered by rotation, they can generate frequent magnetic flares, which launch powerful blast waves into the wind.
A. Beloborodov
semanticscholar +1 more source
Detection of acoustic‐gravity waves in lower ionosphere by VLF radio waves [PDF]
, 2017 We present a new method to study harmonic waves in the low ionosphere (60–90 km) by detecting their effects on reflection of very low frequency (VLF) radio waves.
A. Nina, V. Čadež
semanticscholar +1 more source