Results 21 to 30 of about 6,360,569 (404)

Dynamical and topological properties of the spin angular momenta in general electromagnetic fields

open access: yesCommunications Physics, 2023
Spin angular momenta play important roles in light–matter interactions, leading to the emergence of the spin Hall effect and topological quasiparticles in modern optics.
Peng Shi   +5 more
doaj   +1 more source

Comparison of time/phase lags in the hard state and plateau state of GRS 1915+105 [PDF]

open access: yes, 2013
We investigate the complex behavior of energy- and frequency-dependent time/phase lags in the plateau state and the radio-quiet hard state of GRS 1915+105.
Misra, Ranjeev   +4 more
core   +2 more sources

Radio-frequency polarimetry [PDF]

open access: yesAIP Conference Proceedings, 1998
A method of fast non-destructive absolute spin monitoring for a bunched beam in an accelerator ring based on use of the RF techniques is considered. The coherent spin of the beam is driven by RF magnets in the spin echo regime. A passive superconducting resonator is proposed to respond to the flipping spin.
openaire   +4 more sources

Enhancement of Fungal Enzyme Production by Radio-Frequency Electromagnetic Fields

open access: yesJournal of Fungi, 2022
Enzyme production by microorganisms on an industrial scale has demonstrated technical bottlenecks, such as low efficiency in enzyme expression and extracellular secretion.
Mayura Veerana   +8 more
doaj   +1 more source

Construction of optical system for an atomic clock-beyond atomic fountain

open access: yesFrontiers in Physics, 2022
We demonstrate the construction of the optical system in the atomic clock-beyond atomic fountain based on 87Rb atom. The optical system includes a high-stability laser system and an optical lattice.
Xiumei Wang   +21 more
doaj   +1 more source

Rydberg-atom based radio-frequency electrometry using frequency modulation spectroscopy in room temperature vapor cells. [PDF]

open access: yesOptics Express, 2017
Rydberg atom-based electrometry enables traceable electric field measurements with high sensitivity over a large frequency range, from gigahertz to terahertz.
Santosh Kumar   +4 more
semanticscholar   +1 more source

Modification of cluster radio halo appearance by the thermal Sunyaev-Zeldovich effect [PDF]

open access: yes, 2002
We discuss the consequences of the spectral and morphological modification of galaxy cluster radio halos due to the Sunyaev-Zeldovich (SZ) effect for the interpretation of existing and upcoming high frequency radio observations.
Blasi   +26 more
core   +2 more sources

Refractive-index-sensing radio-frequency comb with intracavity multi-mode interference fibre sensor [PDF]

open access: yesOptics Express Vol. 26, Issue 15, pp. 19694-19706 (2018), 2018
Optical frequency combs have attracted attention as optical frequency rulers due to their tooth-like discrete spectra together with their inherent mode-locking nature and phase-locking control to a frequency standard. Based on this concept, their applications until now have been demonstrated in the fields of optical frequency metrology and optical ...
arxiv   +1 more source

The Impact of GSM towers in Radio Astronomy [PDF]

open access: yes2023 IEEE Radio and Antenna Days of the Indian Ocean (RADIO), 2023
Radio astronomy is a specialised area of astronomy that examines the radio emissions from astronomical bodies within the electromagnetic spectrum's radio range. As radio telescopes have become increasingly sensitive due to technological advancements, radio astronomers face the significant challenge of reducing the impact of human-generated radio ...
arxiv   +1 more source

Radio Frequency

open access: yes, 2023
Dalam rangka meningkatkan mutu pelayanan dosen khususnya Tridarma perguruan tinggi diperlukan pengakuan kinerja sehingga dosen yang bersangkutan dapat meningkatkan kinerjanya.
openaire   +1 more source

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