Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Kohei Kumagai"'
Autor:
Shimon Yamada, Shigeru Kashiwagi, Ikuro Nagasawa, Ken-ichi Nanbu, Toshiya Muto, Ken Takahashi, Ken Kanomata, Kotaro Shibata, Fujio Hinode, Sadao Miura, Hiroki Yamada, Kohei Kumagai, Hiroyuki Hama
Publikováno v:
Particles, Vol 6, Iss 3, Pp 739-745 (2023)
A test-Accelerator as Coherent Terahertz Source (t-ACTS) has been under development at Tohoku University, in which an intense coherent terahertz radiation is generated from the short electron bunches. Velocity bunching scheme in a traveling wave acce
Externí odkaz:
https://doaj.org/article/7149764856c441f68fec7ef23995f853
Publikováno v:
Molecules, Vol 24, Iss 14, p 2591 (2019)
New types of ionic liquids (ILs) with an epoxy group on a piperidinium-type cation were successfully synthesized by the simple anion exchange reaction of a solid 1-allyl-1-(oxiran-2-ylmethyl)piperidinium bromide, which was designed in this study. Unf
Externí odkaz:
https://doaj.org/article/f0d1befb1817444aa1a1081be5cb2cab
Publikováno v:
The Journal of Physical Chemistry C. 125:8285-8293
In this study, a novel method is proposed for investigating energy transfer between quantum dots (QDs), especially of the same type, in an ensemble by employing cubic crystals of a commonly used me...
Publikováno v:
Chemistry of Materials. 33:1607-1617
Metal–organic framework (MOF) based light harvesting has been attracting considerable attention as an artificial antenna for photochemical and photophysical applications. Herein, we report the phot...
Publikováno v:
CrystEngComm. 21:5568-5577
Robust surface protective materials for practical applications of luminescent semiconductor quantum dots (QDs) that differ from conventional organic ligands are required for long-term QD stability. Among the alternatives, metal–organic frameworks (
Autor:
Kazuya Watanabe, Kohei Kumagai
Publikováno v:
Journal of Coastal Research. 85:61-65
Watanabe K. and Kumagai K., 2018. Investigation of the River Mouth Topography Change by the Response Characteristics of River Discharge and Ocean Waves at Yoneshiro River. In: Shim, J.-S.; Chun, I., and Lim, H.S. (eds.), Proceedings from the Internat
Publikováno v:
Molecules
Volume 24
Issue 14
Molecules, Vol 24, Iss 14, p 2591 (2019)
Volume 24
Issue 14
Molecules, Vol 24, Iss 14, p 2591 (2019)
New types of ionic liquids (ILs) with an epoxy group on a piperidinium-type cation were successfully synthesized by the simple anion exchange reaction of a solid 1-allyl-1-(oxiran-2-ylmethyl)piperidinium bromide, which was designed in this study. Unf
Publikováno v:
ECS Meeting Abstracts. :2726-2726
Semiconductor quantum dots (QDs), have been attracting much attention as the next generation of light-emitting materials due to their unique properties, such as their broad absorption range and narrow band-edge photoluminescence (PL) with high emissi
Autor:
Kairi Takahashi, Kohei Kumagai, Takashi Hasegawa, Miyu Kazaana, Shunsuke Kanatani, Shunji Ishio, Maiko Hirao
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
Scientific Reports
Scientific Reports
The development of magnetic materials with large uniaxial magnetic anisotropy (Ku) and high saturation magnetization has attracted much attention in various areas such as high-density magnetic storage, spintronic devices, and permanent magnets. Altho
Publikováno v:
Journal of Physics D: Applied Physics. 51:065005
The tetragonal crystalline structure and magnetic properties of MgO/Rh/(Fe1−x Co x )0.9V0.1 and MgO/Rh/(Fe1−x Co x )0.9V0.05C0.05 films (0.4 x 0.7, thickness t = 2–50 nm) were studied. For both the systems, the films with t = 5 nm showed a tetr