Results 21 to 30 of about 1,607 (205)

Diagnostic Potential of Free-Space Radiometric Partial Discharge Measurements [PDF]

open access: yes, 2017
The work reported in this paper addresses the calibration of four types of partial discharge (PD) emulator required for the development of a PD Wireless Sensor Network (WSN).
Atkinson, R.   +9 more
core   +1 more source

Test protocol for radiated emissions in medical electrical equipment: case study of telemedicine equipment

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2013
This protocol was carried out with the purpose of having a methodology for the certification of electromagnetic compatibility of medical electrical equipment, in relation to radiated emissions, in accordance with the provisions of the IEC 60601-1-2 and ...
Antonio José Salazar Gómez   +1 more
doaj   +1 more source

Observations of Low Frequency Solar Radio Bursts from the Rosse Solar-Terrestrial Observatory

open access: yes, 2012
The Rosse Solar-Terrestrial Observatory (RSTO; www.rosseobservatory.ie) was established at Birr Castle, Co. Offaly, Ireland (53 05'38.9", 7 55'12.7") in 2010 to study solar radio bursts and the response of the Earth's ionosphere and geomagnetic field. To
A. Kontogeorgos   +27 more
core   +1 more source

How an antenna launches its input power into radiation: the pattern of the Poynting vector at and near an antenna [PDF]

open access: yes, 2005
In this paper I first address the question of whether the seat of the power radiated by an antenna made of conducting members is distributed over the ``arms'' of the antenna according to -J .
Brillouin L.   +9 more
core   +3 more sources

Comparative study of NGOs towards disaster risk reduction in Nigeria [PDF]

open access: yes, 2018
The aim of this paper is to explore some comparative advantages of training indigenous groups towards disaster risk reduction. Non-Governmental Organizations (NGOs) are nonprofit organizations that have been recognized based on their efforts towards ...
Ali, Maimunah, Gabarin Umar, Abubakar
core   +1 more source

Analysis of Simulated and Measured Indoor Channels for mm-Wave Beamforming Applications

open access: yesInternational Journal of Antennas and Propagation, 2018
Ray tracing- (RT-) assisted beamforming, where beams are directly steered to dominant paths tracked by ray tracing simulations, is a promising beamforming strategy, since it avoids the time-consuming exhaustive beam searching adopted in conventional beam
Anders Karstensen   +4 more
doaj   +1 more source

Calibration of Free-Space Radiometric Partial Discharge Measurements [PDF]

open access: yes, 2017
The present study addresses the calibration of four types of partial discharge (PD) emulators used in the development of a PD Wireless Sensor Network (WSN).
Atkinson, R   +7 more
core   +1 more source

Drelów, the 13th and latest meteorite fall in Poland—A typical L6 chondrite with shock veins

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract On Tuesday, February 18, 2025, at 18:04:14 local time, residents of Poland observed a bright fireball registered by many Polish fireball stations belonging to the Skytinel Network established a few months before by Mateusz Żmija. Thus, the meteoroid's orbit, atmospheric trajectory, and the strewn field were calculated, and over 70 fragments ...
Addi Bischoff   +18 more
wiley   +1 more source

Kindberg, the fifth meteorite fall in Austria: A weakly shocked L6 chondrite breccia with high‐pressure phases

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 1, Page 17-38, January 2026.
Abstract A bright fireball was seen at 4:46 a.m. CET on November 19, 2020, over Austria, and also eye witnessed in Italy and Germany. The resulting Kindberg meteorite was the fifth well‐approved meteorite fall in Austria, and all rocks represent ordinary chondrites.
Addi Bischoff   +8 more
wiley   +1 more source

Design and Initial Performance of the Askaryan Radio Array Prototype EeV Neutrino Detector at the South Pole

open access: yes, 2011
We report on studies of the viability and sensitivity of the Askaryan Radio Array (ARA), a new initiative to develop a Teraton-scale ultra-high energy neutrino detector in deep, radio-transparent ice near Amundsen-Scott station at the South Pole.
Allison, P.   +47 more
core   +1 more source

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