Zobrazeno 1 - 10
of 5 687
pro vyhledávání: '"Okai A"'
Autor:
Guan, Ming, Bartokos, Michael, Beeks, Kjeld, Fukunaga, Yuta, Hiraki, Takahiro, Masuda, Takahiko, Miyamoto, Yuki, Okage, Ryoichiro, Okai, Koichi, Sasao, Noboru, Schaden, Fabian, Schumm, Thorsten, Shimizu, Koutaro, Takatori, Sayuri, Yoshimi, Akihiro, Yoshimura, Koji
Thorium-229, with its exceptionally low-energy nuclear excited state, is a key candidate for developing nuclear clocks. $^{229}$Th-doped CaF$_2$ crystals, benefiting from calcium fluoride's wide band gap, show great promise as solid-state nuclear clo
Externí odkaz:
http://arxiv.org/abs/2410.18134
Autor:
Hiraki, Takahiro, Okai, Koichi, Bartokos, Michael, Beeks, Kjeld, Fujimoto, Hiroyuki, Fukunaga, Yuta, Haba, Hiromitsu, Kasamatsu, Yoshitaka, Kitao, Shinji, Leitner, Adrian, Masuda, Takahiko, Ming, Guan, Nagasawa, Nobumoto, Ogake, Ryoichiro, Pimon, Martin, Pressler, Martin, Sasao, Noboru, Schaden, Fabian, Schumm, Thorsten, Seto, Makoto, Shigekawa, Yudai, Shimizu, Koutaro, Sikorsky, Tomas, Tamasaku, Kenji, Takatori, Sayuri, Watanabe, Tsukasa, Yamaguchi, Atsushi, Yoda, Yoshitaka, Yoshimi, Akihiro, Yoshimura, Koji
Publikováno v:
Nat Commun 15, 5536 (2024)
The radioisotope Th-229 is renowned for its extraordinarily low-energy, long-lived nuclear first-excited state. This isomeric state can be excited by VUV lasers and the transition from the ground state has been proposed as a reference transition for
Externí odkaz:
http://arxiv.org/abs/2405.09577
Autor:
Hiroshige, Nao, Okai, Shunsuke, Zhang, Xuanwei, Kumar, Samir, Namura, Kyoko, Suzuki, Motofumi
Recently, we demonstrated that the local heating of degassed water can generate water vapor microbubbles and induce a rapid flow around the bubble. Although flow generation involves the self-excited oscillation of bubbles at a local heating point, th
Externí odkaz:
http://arxiv.org/abs/2401.07530
Publikováno v:
Open Geosciences, Vol 9, Iss 1, Pp 101-113 (2017)
In this paper we analyse the dependence between gully networks, networks of valleys and faults in the area of Hronska pahorkatina Hill Land. The work is based on the analysis of directions and densities of these three networks in the study area and s
Externí odkaz:
https://doaj.org/article/fd2c8ead33a64e3ea1bfdb9be790baa1
Autor:
White, Thomas G., Poole, Hannah, McBride, Emma E., Oliver, Matthew, Descamps, Adrien, Fletcher, Luke B., Angermeier, W. Alex, Allen, Cameron H., Appel, Karen, Condamine, Florian P., Curry, Chandra B., Dallari, Francesco, Funk, Stefan, Galtier, Eric, Gamboa, Eliseo J., Gauthier, Maxence, Graham, Peter, Goede, Sebastian, Haden, Daniel, Kim, Jongjin B., Lee, Hae Ja, Ofori-Okai, Benjamin K., Richardson, Scott, Rigby, Alex, Schoenwaelder, Christopher, Sun, Peihao, Witte, Bastian L., Tschentscher, Thomas, Zastrau, Ulf, Nagler, Bob, Hastings, J. B., Monaco, Giulio, Gericke, Dirk O., Glenzer, Siegfried H., Gregori, Gianluca
Publikováno v:
Physical Review Research 6 (2024) L022029
We present direct observations of acoustic waves in warm dense matter. We analyze wave-number- and energy-resolved x-ray spectra taken from warm dense methane created by laser heating a cryogenic liquid jet. X-ray diffraction and inelastic free-elect
Externí odkaz:
http://arxiv.org/abs/2311.07774
Publikováno v:
International Journal of Evidence Based Coaching and Mentoring, Vol 22, Iss 2, Pp 21-37 (2024)
This study employed a comparative qualitative case study method to investigate the pivotal role of mentoring in doctoral studies within distinct institutional settings, namely, Ghana and the United States. Using the cognitive apprenticeship model, we
Externí odkaz:
https://doaj.org/article/c15a03e9f29040ce9d72c209f2a82bce
Autor:
Yukie Oya-Watanabe, Koji Inagaki, Takahiro Nimi, Yohei Yamamoto, Toshiya Tanabe, Makoto Okai, Nobuhiro Segawa, Toshiyuki Watanabe, Noriyasu Uchibori, Tatsuro Koide, Junko Inukai, Hidemichi Yuasa, Akio Mitani, Toru Nagao, Makoto Fukui, Daisuke Hinode
Publikováno v:
Tobacco Induced Diseases, Vol 22, Iss August, Pp 1-11 (2024)
Introduction The prevalence of smoking, including heated tobacco products (HTPs), among Japanese dentists was reported to be 16.5%, significantly higher than that among Japanese physicians and United States dentists. However, large-scale studies on s
Externí odkaz:
https://doaj.org/article/d828dc27e938444eae336874bdfe71c1
Autor:
Protus Omondi, Brian Musyoka, Takatsugu Okai, James Kongere, Wataru Kagaya, Chim W. Chan, Mtakai Ngara, Bernard N. Kanoi, Yasutoshi Kido, Jesse Gitaka, Akira Kaneko
Publikováno v:
Tropical Medicine and Health, Vol 52, Iss 1, Pp 1-13 (2024)
Abstract Background While Plasmodium falciparum (Pf) stands out as the most lethal malaria parasite species in humans, the impact of other species should not be dismissed. Moreover, there is a notable lack of understanding of mixed-species infections
Externí odkaz:
https://doaj.org/article/762e4f3c85d7451aabb31ce10811a8f3
Autor:
Luke B. Fletcher, Abraham L. Levitan, Emma E. McBride, Jongjin B. Kim, Eduardo P. Alves, Andrew Aquila, Mungo Frost, Sebastian Goede, Grace King, Thomas J. Lane, Mengning Liang, Michael J. MacDonald, Benjamin K. Ofori-Okai, Christopher Schönwälder, Peihao Sun, Jerome B. Hastings, Sebastien Boutet, Siegfried H. Glenzer
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract We report time resolved observations of the crystallization from liquid hydrogen, supercooled to temperatures below the melting point, using 11.2 keV X-ray diffraction from the Linac Coherent Light Source (LCLS). Changes to the metastable so
Externí odkaz:
https://doaj.org/article/59b89c0f3ed9410ba6fc2bbc9576451f
Autor:
Takahiro Hiraki, Koichi Okai, Michael Bartokos, Kjeld Beeks, Hiroyuki Fujimoto, Yuta Fukunaga, Hiromitsu Haba, Yoshitaka Kasamatsu, Shinji Kitao, Adrian Leitner, Takahiko Masuda, Ming Guan, Nobumoto Nagasawa, Ryoichiro Ogake, Martin Pimon, Martin Pressler, Noboru Sasao, Fabian Schaden, Thorsten Schumm, Makoto Seto, Yudai Shigekawa, Kotaro Shimizu, Tomas Sikorsky, Kenji Tamasaku, Sayuri Takatori, Tsukasa Watanabe, Atsushi Yamaguchi, Yoshitaka Yoda, Akihiro Yoshimi, Koji Yoshimura
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract The radioisotope thorium-229 (229Th) is renowned for its extraordinarily low-energy, long-lived nuclear first-excited state. This isomeric state can be excited by vacuum ultraviolet (VUV) lasers and 229Th has been proposed as a reference tra
Externí odkaz:
https://doaj.org/article/16a44354d3d94916bf8e46d4a3ff9a73