Zobrazeno 1 - 10
of 245
pro vyhledávání: '"Hyung-Taek Kim"'
Publikováno v:
Energies, Vol 13, Iss 10, p 2669 (2020)
Biomass is a solid fuel that can be used instead of coal to address the issue of greenhouse gases. Currently, biomass is used directly in combustion or via co-combustion in coal-fired power plants. However, its use is limited due to calorific value a
Externí odkaz:
https://doaj.org/article/4b33d202574646bc87c17aed962f4823
Autor:
Jiancai Xu, Leejin Bae, Mohamed Ezzat, Hyung Taek Kim, Jeong Moon Yang, Sang Hwa Lee, Jin Woo Yoon, Jae Hee Sung, Seong Ku Lee, Liangliang Ji, Baifei Shen, Chang Hee Nam
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-8 (2022)
Abstract A localized nanoparticle insertion scheme is developed to decouple electron injection from laser evolution in laser wakefield acceleration. Here we report the experimental realization of a controllable electron injection by the nanoparticle
Externí odkaz:
https://doaj.org/article/41d2dc7e0b30490c955828bb0a0290c9
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-7 (2018)
Abstract We propose an all-optical dual-stage laser wakefield acceleration (LWFA), staged with co-propagating two-color laser pulses in a plasma medium, to enhance the electron bunch energy. After the depletion of the leading fundamental laser pulse
Externí odkaz:
https://doaj.org/article/9c30b700e73242a0a7b59eaeb57edb34
Publikováno v:
Physics and High Technology. 31:13-19
Lasers have been versatile tools to investigate physical phenomena and they have paved the way for exploring novel physics. Recently, scientists have become excited about the advent of the ultra-intense laser with extreme output power. The output pow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89af9b7926a6cc58740426619fbd125e
https://doi.org/10.3938/phit.31.044
https://doi.org/10.3938/phit.31.044
Autor:
Hyung Taek Kim, Vishwa Bandhu Pathak, Calin Ioan Hojbota, Mohammad Mirzaie, Ki Hong Pae, Chul Min Kim, Jin Woo Yoon, Jae Hee Sung, Seong Ku Lee
Publikováno v:
Applied Sciences, Vol 11, Iss 13, p 5831 (2021)
Laser wakefield electron acceleration (LWFA) is an emerging technology for the next generation of electron accelerators. As intense laser technology has rapidly developed, LWFA has overcome its limitations and has proven its possibilities to facilita
Externí odkaz:
https://doaj.org/article/c8c2da1481f746ceb19a61e3479e8a1a
Publikováno v:
AIP Advances, Vol 9, Iss 8, Pp 085229-085229-9 (2019)
We present a technique, based on a dipole magnet spectrometer containing multiple scintillation screens, to accurately characterize the spectral distribution of a GeV electron beam generated by laser wakefield acceleration (LWFA). An optimization alg
Externí odkaz:
https://doaj.org/article/1452924c6ba24049814ca72ed05e1375
Publikováno v:
Journal of the Korean Physical Society. 80:670-683
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e32f965ee875195a4ccc72cb60ef1eb5
https://doi.org/10.1007/s40042-022-00443-9
https://doi.org/10.1007/s40042-022-00443-9
Autor:
Bobbili Sanyasi Rao, Myung Hoon Cho, Hyung Taek Kim, Jung Hun Shin, Kyung Hwan Oh, Jong Ho Jeon, Byung Ju Yoo, Seong Ha Cho, Jin Woo Yoon, Jae Hee Sung, Seong Ku Lee, Chang Hee Nam
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043319 (2020)
Laser wakefield accelerators rely on relativistically moving micrometer-sized plasma cavities that provide extremely high electric field >100 GV/m. Here, we demonstrate transverse shaping of the plasma cavity to produce controlled sub-GeV electron be
Externí odkaz:
https://doaj.org/article/5f37b417223c480684bb59cadd84eb6b
Publikováno v:
Journal of Energy Engineering. 30:67-78
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7ceaf6cca01e33a97333072e2ab94c3
https://doi.org/10.5855/energy.2021.30.4.067
https://doi.org/10.5855/energy.2021.30.4.067
Publikováno v:
Journal of the Energy Institute. 93:2399-2408
Phosphorus effect on ash fouling deposition produced during combustion process of sewage sludge solid fuel is a very important factor. Previous studies have only focused on decrease of the ash melting temperature and increase of slagging and sinterin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67c5d9ee9ca4e879200506207c993b3a
https://doi.org/10.1016/j.joei.2020.07.014
https://doi.org/10.1016/j.joei.2020.07.014