Zobrazeno 1 - 10
of 14 089
pro vyhledávání: '"QB1-991"'
Autor:
Nurzhan Ussipov, Almat Akhmetali, Marat Zaidyn, Dana Turlykozhayeva, Aigerim Akniyazova, Timur Namazbayev, Zeinulla Zhanabaev
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 41, Iss 3, Pp 149-158 (2024)
This study developed a machine learning-based methodology to classify gravitational wave (GW) signals from black holeneutron star (BH-NS) mergers by combining convolutional neural network (CNN) with conditional information for feature extraction. T
Externí odkaz:
https://doaj.org/article/ecbcd2651d41440d846b0d2fe96a479e
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 41, Iss 3, Pp 159-170 (2024)
A method for resident space object detection in video stream processing using a set of matched filters has been proposed. Matched filters are constructed based on the connection between the Fourier spectrum shape of the difference frame and the mag
Externí odkaz:
https://doaj.org/article/4a9179e138774085b22c97cb4a18941b
Autor:
Young-Sil Kwak, Jeong-Heon Kim, Sujin Kim, Yukinaga Miyashita, Taeyong Yang, Sung-Hong Park, Eun-Kyung Lim, Jongil Jung, Hosik Kam, Jaewook Lee, Hwanhee Lee, Ji-Hyun Yoo, Haein Lee, Ryun-Young Kwon, Jungjoon Seough, Uk-Won Nam, Woo Kyoung Lee, Junseok Hong, Jongdae Sohn, Jaeyoung Kwak, Hannah Kwak, Rok-Soon Kim, Yeon-Han Kim, Kyung-Suk Cho, Jaeheung Park, Jaejin Lee, Hoang Ngoc Huy Nguyen, Madeeha Talha
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 41, Iss 3, Pp 171-194 (2024)
This study reports comprehensive observations for the G5-level geomagnetic storm that occurred from May 10 to 12, 2024, the most intense event since the 2003 Halloween storm. The storm was triggered by a series of coronal mass ejections (CMEs) orig
Externí odkaz:
https://doaj.org/article/3348d31c3d7d4488b9edf511150a5f37
Autor:
O. V. Sytnik, S. O. Masalov
Publikováno v:
Radio Physics and Radio Astronomy, Vol 29, Iss 3, Pp 173-179 (2024)
Subject and Purpose. The subject of the research is the statistical characteristics of the signal, noise, and interference and their distribution functions. The emphasis is on exploring the properties of these elements and assessing their impact on a
Externí odkaz:
https://doaj.org/article/78eb88426c3444f1b2cd6dc67fb280bc
Autor:
O. V. Lazorenko, L. F. Chernogor
Publikováno v:
Radio Physics and Radio Astronomy, Vol 29, Iss 3, Pp 180-205 (2024)
Subject and Purpose. At the beginning of the 21st century, a fundamentally new scientific direction was formed in radiophysics — fractal radiophysics. The subject of this review is the main practical ideas of "fractalization" in radio physics. The
Externí odkaz:
https://doaj.org/article/a8e12473b268444f9ca8082b47df8335
Publikováno v:
Radio Physics and Radio Astronomy, Vol 29, Iss 3, Pp 206-213 (2024)
Subject and Purpose. The improvement of the atmosphere brightness temperature measuring method at frequencies of about 100 GHz is considered. The possibilities of the atmospheric carbon monoxide (CO) remote sensing instrument, developed at Institute
Externí odkaz:
https://doaj.org/article/7a6e1e6116114e409dc78de00dbef872
Autor:
A. M. Linkova
Publikováno v:
Radio Physics and Radio Astronomy, Vol 29, Iss 3, Pp 214-221 (2024)
Subject and Purpose. The methods for precipitation remote sensing continue to be developed. One of the trends has been assessing amounts of precipitations to determine whether to issue alerts for large-scale floods and landslides or to make decisions
Externí odkaz:
https://doaj.org/article/dc9ff4c31b5d455a9d1031229b9bf6b3
Publikováno v:
Radio Physics and Radio Astronomy, Vol 29, Iss 3, Pp 222-228 (2024)
Subject and Purpose. This paper presents numerical simulation results on the transmission spectra of a split-ring resonator (SRR) loaded with a thin film of yttrium iron garnet (YIG). The application of a magnetic core in the SRR is proposed for incr
Externí odkaz:
https://doaj.org/article/1376abe5702e4d38a60128c7ef7c4d35
Publikováno v:
Radio Physics and Radio Astronomy, Vol 29, Iss 3, Pp 229-235 (2024)
Subject and Purpose. The current research projects in astrophysics are in need of high-sensitivity scientific instruments. The accuracy and sensitivity of observations can be enhanced through the use of large radio telescopes and other radio frequenc
Externí odkaz:
https://doaj.org/article/ac94451daacb44fc9dc35969520fc55d
Autor:
V. A. Buts, D. M. Vavriv
Publikováno v:
Radio Physics and Radio Astronomy, Vol 29, Iss 3, Pp 236-244 (2024)
Subject and Purpose. The effects considered concern phase synchronization of electrons in an ideal plasma subjected to the action of an external uniform, d. c. magnetic field. Two modes of the synchronization are discussed, specifically one by an ext
Externí odkaz:
https://doaj.org/article/6624c8d07d0d44b7b7d6ad728cd440a6