Results 31 to 40 of about 78,876 (264)

Systematic uncertainty of first-principle calculations of the radiation energy emitted by extensive air showers [PDF]

open access: yesEPJ Web of Conferences, 2019
The energy of extensive air showers can be determined from the energy radiated in the form of radio signals. The so-called radiation energy can be predicted with modern simulation codes using first-principle calculations without the need of free ...
Gottowik Marvin   +3 more
doaj   +1 more source

Radio-Active Substances and Their Radiations [PDF]

open access: yesJournal of the Röntgen Society, 1913
MUCH water has flowed under the bridge since 1906, when the second edition of Prof. Rutherford's “Radio-activity” was reviewed in NATURE by the present writer. Though its title has been changed, the work is not essentially different in plan from its predecessor.
openaire   +2 more sources

Statistical Analysis of Langmuir Waves Associated with Type III Radio Bursts: I. Wind Observations

open access: yesOpen Astronomy, 2011
Interplanetary electron beams are unstable in the solar wind and they generate Langmuir waves at the local plasma frequency or its harmonic. Radio observations of the waves in the range 4-256 kHz, observed in 1994-2010 with the WAVES experiment onboard ...
Vidojević S.   +4 more
doaj   +1 more source

Study of the electrodynamic properties of composite ceramics

open access: yesХімія, фізика та технологія поверхні, 2023
Nowadays, people are constantly under the influence of electromagnetic radiation, which can cause health deterioration. The creation of ceramic materials that protect biological and technical objects from the negative effects of electromagnetic ...
V. I. Hryhoruk   +7 more
doaj   +1 more source

Recent Advances in Solar Physics at VIRAC: Analysis of Solar Active Regions in Microwaves

open access: yesOpen Astronomy, 2011
A brief historical review of the development of solar physics and solar radio astronomy in Latvia and its current status is presented.
Bezrukovs D.
doaj   +1 more source

Structure Radio Beam Construction in Azimuthal Domain

open access: yesIEEE Access, 2020
Structure radio beams with diverse radiation patterns exhibit huge potentials in many applications. In this paper, we propose a plane spiral orbital angular momentum (PS-OAM) based structure radio beam construction scheme, in which several PS-OAM waves ...
Zhixia Wang   +7 more
doaj   +1 more source

A Study of Long-Term Solar Activity at 37 GHz

open access: yesOpen Astronomy, 2012
In this paper we investigate the solar activity at the radio frequency (37 GHz) using an extensive data series (solar radio maps) from the Metsähovi Radio Observatory.
Kallunki J.   +3 more
doaj   +1 more source

Influence of underground radio wave on human body in coal mine

open access: yesGong-kuang zidonghua, 2022
The large-power radio waves emitted by 5G, WiFi6, UWB, ZigBee and other mine mobile communication systems and personnel and vehicle positioning systems will affect the health of underground personnel.
DING Xuhai   +3 more
doaj   +1 more source

EBG Size Reduction for Low Permittivity Substrates

open access: yesInternational Journal of Antennas and Propagation, 2012
Double layer and edge-location via techniques are combined for electromagnetic band gap (EBG) size reduction. The study of the required number of elements and their dimensions is carried out in order to suppress the surface wave propagation modes and ...
Gonzalo Expósito-Domínguez   +3 more
doaj   +1 more source

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