Zobrazeno 1 - 10
of 673
pro vyhledávání: '"E Yashin"'
Publikováno v:
Bulletin of KSAU. :100-107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd3cd2e81122b533e37df2e536493995
https://doi.org/10.36718/1819-4036-2021-11-100-107
https://doi.org/10.36718/1819-4036-2021-11-100-107
Autor:
Byunghak Lee, Duchang Heo, Jun Wan Kim, E. G. Sall, J. Yang, Vladimir E. Yashin, Guang-Hoon Kim, J.-A. Choi, Bosu Jeong, J. Jang, J.-H. Kim
Publikováno v:
Quantum Electronics. 50:201-204
We present images of microholes drilled in diamond using a homemade femtosecond Yb : KGW laser. We use a femtosecond laser source emitting pulses with a duration of 230 fs at a wavelength of 1030 nm, the focusing spot size amounting to 8.9 μm. The e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0de5cffdd14a9914a1c8d0393ee8db07
https://doi.org/10.1070/qel17097
https://doi.org/10.1070/qel17097
Autor:
Vladimir E. Yashin, Byunghak Lee, J. Yang, Duchang Heo, S. A. Chizhov, Guang-Hoon Kim, Bosu Jeong, Jun Wan Kim, E. G. Sall
Publikováno v:
Quantum Electronics. 49:1168-1171
A three-stage laser amplification system based on thin Yb : YAG rods with diode laser pumping is developed and fabricated. In this system, the average power of a continuous train of femtosecond pulses from a Yb : KGW master oscillator with a pulse re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3efd602014d03f4d191f002f4b6e289a
https://doi.org/10.1070/qel17108
https://doi.org/10.1070/qel17108
Publikováno v:
Theoretical Foundations of Chemical Engineering. 55:325-327
Equations are obtained for calculating the rate of onset of fluidization and the onset of complete fluidization, taking into account the dependence of the drag coefficients on the porosity in the region of preliminary expansion of the bed before comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a59ee319422a2e2917044d716aa9ba76
https://doi.org/10.1134/s0040579521020123
https://doi.org/10.1134/s0040579521020123
Publikováno v:
Laser Physics. 32:105102
In this research, an all- polarization-maintained semiconductor saturable absorber mirror (SESAM) mode-locked fiber oscillator and its amplification by Yb-doped fiber and a Yb:YAG thin rod are presented. From a ring-type cavity configuration created
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d96b58d670d3a42b5b088dba2ec7653
https://doi.org/10.1088/1555-6611/ac92dc
https://doi.org/10.1088/1555-6611/ac92dc
Publikováno v:
Theoretical Foundations of Chemical Engineering. 53:967-971
Semiempirical equations have been derived for determining the rate of slow hindered motion of spherical particles in a liquid, which agree with empirical data with a high degree of accuracy. It has been shown that the variational principle of the min
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::973d99faf20a44f24d5929a257584bde
https://doi.org/10.1134/s0040579519060125
https://doi.org/10.1134/s0040579519060125
Publikováno v:
Vestnik of Ulyanovsk state agricultural academy. :79-84
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36079b36ad40129a4347d6792cd63414
https://doi.org/10.18286/1816-4501-2019-2-79-84
https://doi.org/10.18286/1816-4501-2019-2-79-84
Publikováno v:
E3S Web of Conferences, Vol 224, p 04041 (2020)
The paper presents the results of trials of silicon-containing preparations ADK (amorphous silicon dioxide) and Risilika (pyrolysate of rice husks and straw) as fertilizers for sugar beet in field experiments. The experimental design included seven o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0441dc4a17650ba2eab090a35459081
https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/84/e3sconf_TPACEE2020_04041.pdf
https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/84/e3sconf_TPACEE2020_04041.pdf
Autor:
Jun Wan, Kim, Elena, Sall, Byunghak, Lee, Bosu, Jeong, Seolwon, Park, Chur, Kim, Duchang, Heo, V E, Yashin, Juhee, Yang, Guang-Hoon, Kim
Publikováno v:
Optics express. 27(22)
A diode-pumped Yb:Y
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::351fc47139afff87473c17bef50ab66f
https://pubmed.ncbi.nlm.nih.gov/31684376
https://pubmed.ncbi.nlm.nih.gov/31684376
Autor:
Vladimir E. Yashin, Byunghak Lee, Guang-Hoon Kim, Chur Kim, Seol Won Park, Duchang Heo, Bosu Jeong, Jun Wan Kim, J. Yang, E. G. Sall
Publikováno v:
Laser Congress 2019 (ASSL, LAC, LS&C).
We have studied experimentally a high power booster of Yb:YAG single-crystal fiber with regenerative amplifier based on dual-slab Yb:KGW crystals. The booster provided the output power of 45 W with the gain of 3. It allowed the laser system to mainta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b977618f9f87b94efa7b6e834feecf6d
https://doi.org/10.1364/assl.2019.jth3a.22
https://doi.org/10.1364/assl.2019.jth3a.22