Zobrazeno 1 - 10
of 625
pro vyhledávání: '"ultra-high frequency (UHF)"'
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 4365-4378 (2024)
To reveal the microstructure forming mechanism of laser/ultra-high frequency (UHF) induction deposition, this paper developed a microscopic phase-field (PF) model to numerically investigate dendrite growth during solidification. The macroscopic model
Externí odkaz:
https://doaj.org/article/7e59a22bcdfe4a7a99fb4e055bb262e2
Publikováno v:
电力工程技术, Vol 43, Iss 1, Pp 181-191 (2024)
Ultra high frequency (UHF) partial discharge (PD) detection is a common method for transformer oil-paper insulation defect location. However, the accuracy of PD positioning in practical application is easily affected by noise and sensor layout. In or
Externí odkaz:
https://doaj.org/article/49960d537f884ac890fcac8de625f1e4
Publikováno v:
Sensors, Vol 24, Iss 18, p 6147 (2024)
A compact VHF/UHF ultrawideband discone antenna with consistent patterns is proposed in this article. The proposed antenna consists of a disk, a modified cone, an inverted cone, four shorting probes, and two sleeves. To improve the radiation angular
Externí odkaz:
https://doaj.org/article/effdcbe990c74bf68fba26c761c5d445
Publikováno v:
IEEE Access, Vol 11, Pp 115179-115189 (2023)
The use of wearable textile Radio Frequency Identification (RFID) sensors is becoming widespread in many different application areas because of their technical utilization advantages. In this study, a textile-based Ultra High Frequency (UHF) RFID sen
Externí odkaz:
https://doaj.org/article/940d9e69a62b44698c827711225565d6
Autor:
Casanova Murillo, Marc
[ES] Esta tesis doctoral tiene como reto la mejora de precisión de un sistema de localización en interiores cuya aplicación principal es el entorno hospitalario. Se apuesta por una novedosa técnica importada recientemente a la tecnología y espec
Externí odkaz:
http://hdl.handle.net/10251/207553
Akademický článek
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Akademický článek
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Publikováno v:
Energy Reports, Vol 8, Iss , Pp 177-191 (2022)
In the present study, a combined in-oil partial discharge (PD) sensor based on oil valve with acoustical emission and ultra high frequency (AE/UHF) methods for PD measurement in transformer is proposed. The combined PD sensor is designed by placing a
Externí odkaz:
https://doaj.org/article/c49edb4914024fd4b0482ef5c16f4b9b
Autor:
José Durán-Bayona, Sergio Quintero-Ayala, Sergio Castro-Casadiego, Carlos Niño-Rondón, Gloria Sandoval-Martínez
Publikováno v:
Revista UIS Ingenierías, Vol 22, Iss 2 (2023)
Libraries supervisors have the administrative duty of control and keep safe their inventories, such as books, documents, manuals, and theses, facilitating access to their users to this information and helping them loan and return, internal or externa
Externí odkaz:
https://doaj.org/article/62692f1f3594404486a24bbac81e6f95
Autor:
Adelaide Ladu, Luca Schirru, Mauro Pili, Gian Paolo Vargiu, Francesco Gaudiomonte, Federico Perini, Andrea Melis, Raimondo Concu, Matteo Murgia
Publikováno v:
Sensors, Vol 23, Iss 22, p 9151 (2023)
Low-frequency aperture arrays represent sensitive instruments to detect signals from radio astronomic sources situated in the universe. In Italy, the Sardinia Aperture Array Demonstrator (SAAD) consists of an ongoing project of the Italian National I
Externí odkaz:
https://doaj.org/article/fa2179ac2af344cd90f8ea782535ff96