Zobrazeno 1 - 10
of 16
pro vyhledávání: '"A. V. Korchak"'
Publikováno v:
Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, Iss 80 (2020)
З метою вдосконалення терагерцових технологiй та пiдвищення ефективностi джерел випромiнювання для телекомунiкацiйних систем терагерцо
Externí odkaz:
https://doaj.org/article/a8b72e36099641aea085c4cd12cfe99d
Autor:
A. A. Smirnov, M. E. Lyubchenko, M. M. Kiriltseva, N. V. Konkina, M. V. Korchak, A. V. Kraskov, V. M. Merzlyakov, N. A. Yaitsky, S. F. Bagnenko
Publikováno v:
Вестник хирургии имени И.И. Грекова, Vol 179, Iss 3, Pp 62-68 (2020)
The OBJECTIVE of the study was to evaluate the severity of submucosal fibrosis in patients with esophageal achalasia, its influence on technical and clinical success of peroral endoscopic myotomies (POEM), and their results.METHODS AND MATERIALS. The
Externí odkaz:
https://doaj.org/article/ceeec042679a453f8da9ccb52c62fb1a
Publikováno v:
Radioelectronics and Communications Systems; Vol. 64 No. 12 (2021); 619-632
Radioelectronics and Communications Systems; Том 64 № 12 (2021); 619-632
Radioelectronics and Communications Systems; Том 64 № 12 (2021); 619-632
The paper presents the simulation results of a broadband fiber Raman amplifier with uniform gain band covering C+L telecommunication windows in the standard TrueWaveRS fiber. Main advantages of the fiber amplifier with active medium based on the sing
Publikováno v:
Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia. :63-72
The two-wave (2λ) fiber laser based on the stimulated Raman scattering is proposed in order to improve terahertz technologies realization and to increase the efficiency of radiation sources for telecommunication systems in the terahertz range. As a
Publikováno v:
2020 IEEE 40th International Conference on Electronics and Nanotechnology (ELNANO).
Modeling results for broadband fiber Raman amplifier (FRA) with flat gain parameters over very wide spectral range covering the C+L telecommunication windows are presented in our paper. Multiwave pumped FRA with active media True Wave singlemode fibe
Publikováno v:
Military Technical Collection. :43-48
Use of improved methods for determining the optical characteristics and parameters using modern experimental methodological approaches and devices is essential if quality control of production and the possibility of opto-electronic systems. In this w
Publikováno v:
2019 IEEE 8th International Conference on Advanced Optoelectronics and Lasers (CAOL).
direct determination of fiber span lengths as functions of bit errors rate for several standard speeds of data transfer by experimental study of amplified spontaneous emission in the backward pumped Raman amplifier are introduced in our work. The lin
Publikováno v:
2019 IEEE 39th International Conference on Electronics and Nanotechnology (ELNANO).
All-fiber original design of the two-wave (2λ) fiber Raman laser (FRL) is suggested for terahertz telecommunication application. It is shown, that the Raman gain profile in single mode fibers allows realizing the 2λ FRL. It is intended for operatio
Publikováno v:
Applied Mechanics and Materials. 843:59-64
Nowadays, large-span underground structures can only be built at shallow depths or in hard rock since their structural strength is not great enough to bear the overburden pressure of thick overlying soil material. To build large-span structures at gr
Autor:
Andrey V. Korchak, Boris A. Kartozia
Publikováno v:
Applied Mechanics and Materials. 843:17-24
The basic notion underlying urban underground development is that underground space is a non-renewable resource, therefore planning its use must be done in a sustainable, environmentally-responsible manner with due account taken of economic, function