Hidden Frequencies in Earth’s Magnetic Pulse Reveal a Stormy Surprise
A new Fourier analysis of the Ap geomagnetic index reveals that high-frequency harmonics were unexpectedly suppressed during a 2001 substorm, ...
Tag: spectral analysis
Hidden Rules Behind the Mirror Symmetry of NMR Spectra Revealed
A new theoretical study identifies the exact balance conditions in nuclear spin systems that produce perfectly mirror-symmetric high-resolution NMR spectra.
Negative Spectral Estimates Are the Secret to Unbiased Turbulence Spectra
A new study shows that allowing power spectral density estimates to go negative is essential for unbiased spectral analysis of ...
Shock Waves Upstream Disrupt Jet Film Cooling in Supersonic Flows, Simulation Reveals
A hybrid SBES simulation shows how upstream shock waves thicken boundary layers, generate secondary compression waves, and alter the turbulent ...
Atmospheric Waves Turn Three South Atlantic Harbors Into Very Different Resonators
A new comparative study reveals that three South Atlantic ports respond to meteotsunamis in strikingly different frequency-dependent ways.
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Mothers who receive childcare support from maternal grandparents show more parental warmth, finds NTU Singapore study
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University of Seville Breaks 120-Year-Old Mystery, Revises a Key Einstein Concept
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Bee body mass, pathogens and local climate influence heat tolerance
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Researchers record first-ever images and data of a shark experiencing a boat strike
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Groundbreaking Clinical Trial Reveals Lubiprostone Enhances Kidney Function
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