Results 31 to 40 of about 5,320,784 (238)
Timescale Spectra in High Energy Astrophysics [PDF]
, 2002 A technique of timescale analysis performed directly in the time domain has been developed recently. We have applied the technique to studying rapid variabilities of hard X-rays from neutron star and black hole binaries, gamma-ray bursts and terrestrial ...
D Kazanas +6 more
core +3 more sources
Analysis of Approaches for Modeling the Low Frequency Emission of LED Lamps
Energies, 2020 Light emitting diode (LED) lamps are now an established lighting technology, which is becoming prevalent in all load sectors. However, LED lamps are non-linear electrical loads, and their impact on distribution system voltage quality must be evaluated ...
Adam J. Collin +6 more
doaj +1 more source
Observational Black Hole Spectroscopy: A time-domain multimode analysis of GW150914 [PDF]
, 2019 The detection of the least damped quasi-normal mode from the remnant of the gravitational wave event GW150914 realised the long sought possibility to observationally study the properties of quasi-stationary black hole spacetimes through gravitational ...
Carullo, Gregorio +2 more
core +2 more sources
Frontiers in Marine Science, 2023 To investigate the vibrational impact of vehicular traffic on the ancient Qiantang River seawall, on-site measurements of the seawall’s pulsation and forced vibrations under different vehicle speeds and axle loads were conducted.
Shenming Zhu +4 more
doaj +1 more source
Comparison of Frequency Domain and Time-Domain Methods for Aeromechanical Analysis
International Journal of Rotating Machinery, 2016 Unsteady flow around an oscillating plate cascade and that through a single compressor rotor subject to vibration have been computationally studied, aimed at examining the predictive ability of two low fidelity frequency methods compared with a high ...
M. T. Rahmati
doaj +1 more source
Equivalence analysis of dielectric test methods in time domain and frequency domain
International Journal of Electrical Power & Energy SystemsWideband dielectric response is crucial for accurate assessment of insulation condition. However, time-domain measurements such as polarization and depolarization current (PDC) tests often lose high-frequency components, while frequency domain ...
Lin Du, Xin Li, Shixian Hui, Chao Xing
doaj +1 more source
Time Domain Vibration Analysis of an Ice Shelf
Journal of Marine Science and EngineeringA method is presented to calculate the vibrations of an ice shelf floating in shallow water under different boundary conditions. One condition is that there is no flux, which reduces all calculations and the other is that there is no pressure at the ...
Rehab Aljabri, Michael H. Meylan
doaj +1 more source
A non-invasive method of glucose monitoring using FR4 material based microwave antenna sensor
Science and Engineering of Composite Materials, 2023 This work presents a unique non-invasive method for monitoring glucose levels in blood using a planar Yagi–Uda antenna as a microwave sensor. The proposed antenna, operating at 5.5 GHz, exhibits a directional radiation pattern with a peak gain of 6.74 ...
Nella Anveshkumar +3 more
doaj +1 more source
ELECTROMYOGRAPHY SIGNAL ON BICEPS MUSCLE IN TIME DOMAIN ANALYSIS
Journal of Mechanical Engineering and Sciences, 2014 Features extraction is important for electromyography (EMG) signal analysis. The paper’s objective is to evaluate the features extraction of the EMG signal. The experimental set-up for EMG signal acquisition followed the procedures recommended by Europe’
Abu Bakar Yahya +3 more
doaj +1 more source
TIME Domain Analysis of Sound Signals for Bearing Damage Identification [PDF]
, 2014 Time domain analysis requires less computational time compared to the frequency domain. Analysis is performed directly on the signal without any conversion at all.
Aswin, M. (Muhammad) +3 more
core