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Category: Physics & Astronomy

  • Acoustics research at the Technical University of Denmark began in 1935

    This research indicates that acoustics research and related teaching at the Technical University of Denmark started in 1935, led to a sound technology laboratory in 1941, and culminated in an acoustical laboratory in 1966.

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  • Quantum battery shows superextensive steady-state electrical power

    This research indicates that a microcavity quantum battery can convert low-intensity, incoherent light into electric current with superextensive steady-state discharging power.

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  • Causality-based divide-and-conquer extends Green’s function simulations

    This research indicates that a causality-based divide-and-conquer algorithm can extend the simulated time domain for nonequilibrium Green’s function calculations without a significant increase in Green’s function storage cost.

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  • Spinning primary extended in transition-to-plunge waveform model

    This research indicates that the transition-to-plunge waveform model for asymmetric-mass-ratio compact binaries was generalized to include the spin of the primary black hole, and the inspiral-transition waveform construction was improved by changing variables in the binary's mechanical phase space.

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  • Axion interactions are described in a complete three-flavor Lagrangian

    This research indicates that axion interactions with pseudoscalar and (axial-)vector mesons can be described in a complete three-light-flavor quark Lagrangian that keeps physical observables invariant under arbitrary chiral phase rotations of the quark fields.

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  • Relaxed cool-core galaxy cluster studied at redshift 1.16

    This research indicates that SPT-CL J2215-3537 is a relaxed, cool-core galaxy cluster at redshift 1.16 and serves as a high-redshift benchmark for studying cool-core formation and massive cluster evolution.

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  • Dual-laser fields alter relativistic hydrogen atom scattering

    This research indicates that electron-impact scattering of a hydrogen-like atom changes in the presence of one or two orthogonally polarized laser fields, with polarization playing a determining role and the Kroll–Watson sum rule remaining valid for photon exchange.

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  • Chemically inflated airbag reduced UAV impact force

    This research indicates that an autonomous chemically inflated airbag for a multi-rotor unmanned aerial vehicle can deploy quickly and reduce impact force during a free-fall descent.

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  • Soil properties affect landing airbag cushioning performance

    This research indicates that soil density, shear modulus, and yield parameters influence the cushioning performance of landing airbags, with softer soil absorbing more energy but too-soft soil causing hard landings.

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  • Weakly magnetized shocks accelerate ions and electrons differently

    This research indicates that in weakly magnetized transrelativistic electron-ion shocks, the dominant instability in the shock precursor changes with magnetization and this changes how efficiently ions and electrons are accelerated.

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