Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Hamidreza Karami"'
Autor:
Elias Le Boudec, Hamidreza Karami, Nicolas Mora, Farhad Rachidi, Marcos Rubinstein, Felix Vega
Publikováno v:
IET Science, Measurement & Technology, Vol 18, Iss 9, Pp 629-640 (2024)
Abstract Time reversal exploits the invariance of electromagnetic wave propagation in reciprocal and lossless media to localize radiating sources. Time‐reversed measurements are back‐propagated in a simulated domain and converge to the unknown so
Externí odkaz:
https://doaj.org/article/2bbfaa26ee1545b58b68399a95e8d78a
Autor:
Farzin Khodaveisi, Hamidreza Karami, Matin Zarei Karimpour, Marcos Rubinstein, Farhad Rachidi
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract This paper presents a comparison of machine learning (ML) methods used for three-dimensional localization of partial discharges (PD) in a power transformer tank. The study examines ML and deep learning (DL) methods, ranging from support vect
Externí odkaz:
https://doaj.org/article/80512271dbb145ef9967012526e9b1fa
Autor:
Ashutosh Sharma, Laura Camila Osorio Ojeda, Na Yuan, Tunc Burak, Ishank Gupta, Nabe Konate, Hamidreza Karami
Publikováno v:
Energies, Vol 17, Iss 11, p 2655 (2024)
Artificial lift systems, such as electrical submersible pumps and sucker rod pumps, frequently encounter operational challenges due to high gas–oil ratios, leading to premature tool failure and increased downtime. Effective upstream gas separation
Externí odkaz:
https://doaj.org/article/3dfdc59f7d35454bb84d14d24a78dabb
Publikováno v:
Heliyon, Vol 8, Iss 12, Pp e11931- (2022)
Robotic or prosthetic organs are designed to have the maximum similarity to human organs. This paper aims to improve robotic hand control via an adaptive Fuzzy-PI controller using EMG signals. The data is collected from the FDS and FPL muscles of the
Externí odkaz:
https://doaj.org/article/4273a96d0f1447b69b5e504550094016
Publikováno v:
Energies, Vol 16, Iss 13, p 5104 (2023)
In recent years, the electromagnetic time reversal (EMTR) theory has been successfully applied for locating various sources of disturbances, such as short-circuit faults, in power systems. In this paper, a theoretical analysis of the feasibility of a
Externí odkaz:
https://doaj.org/article/6d8badfe371d468795d4ab9f9104d773
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
Abstract The localization of partial discharge (PD) sources is of importance for the monitoring and maintenance of power transformers. Time difference of arrival (TDoA) based methods are widely adopted in the literature for the localization of PDs. R
Externí odkaz:
https://doaj.org/article/f3948102c88b4fada0cfdb9c37b8822a
Autor:
Mohammed Alhajabdalla, Husameldin Mahmoud, Mustafa S. Nasser, Ibnelwaleed A. Hussein, Ramadan Ahmed, Hamidreza Karami
Publikováno v:
ACS Omega, Vol 6, Iss 4, Pp 2513-2525 (2021)
Externí odkaz:
https://doaj.org/article/b953a6ac78e14ea88a5829716c6d0322
Autor:
Mohammad Azadifar, Hamidreza Karami, Zhaoyang Wang, Marcos Rubinstein, Farhad Rachidi, Hossein Karami, Ali Ghasemi, Gevork B. Gharehpetian
Publikováno v:
IEEE Access, Vol 8, Pp 147507-147515 (2020)
In this study, first, a comparison on the application of electromagnetic time reversal (EMTR) and time difference of arrival (TDoA) in partial discharge localization in power transformers is presented. A two-dimensional finite-difference time-domain
Externí odkaz:
https://doaj.org/article/c197dab1de9d42bcb9f4ef6dcf9559a6
Publikováno v:
Energies, Vol 15, Iss 6, p 1988 (2022)
Partial discharge (PD) occurrence in power transformers can lead to irreparable damage to the power network. In this paper, the inverse filter (IF) method to localize PDs in power transformers is proposed. To the best of the authors’ knowledge, thi
Externí odkaz:
https://doaj.org/article/83d4a57878944452ad88e54a00bf387f
Publikováno v:
Energies, Vol 14, Iss 3, p 731 (2021)
This study focuses on analyzing the turbulent flow of drilling fluid in inclined wells using the Computational Fluid Dynamics (CFD) technique. The analysis is performed considering an annulus with a fixed eccentricity of 90% and varying fluid propert
Externí odkaz:
https://doaj.org/article/9df4e81ff5e34e56afe4465b1b5090af