Zobrazeno 1 - 10
of 819
pro vyhledávání: '"Hiroshi Sakurai"'
Autor:
Veenavee Nipunika Kothalawala, Kosuke Suzuki, Xin Li, Bernardo Barbiellini, Johannes Nokelainen, Ilja Makkonen, Rafael Ferragut, Pekka Tynjälä, Petteri Laine, Juho Välikangas, Tao Hu, Ulla Lassi, Kodai Takano, Naruki Tsuji, Yosuke Amada, Assa Aravindh Sasikala Devi, Matti Alatalo, Yoshiharu Sakurai, Hiroshi Sakurai, Mohammad Babar, Venkatasubramanian Vishwanathan, Hasnain Hafiz, Arun Bansil
Publikováno v:
APL Energy, Vol 2, Iss 2, Pp 026102-026102-7 (2024)
X-ray Compton scattering experiments along with parallel first-principles computations were carried out on LiNiO2 to understand the effects of W doping on this cathode material for Li-ion batteries. By employing high-energy x rays exceeding 100 keV,
Externí odkaz:
https://doaj.org/article/06e7cb3c06d643dfbb54581f72d66096
Autor:
Yudai Kawakami, Makoto Sakai, Hiroaki Masuda, Masami Miyajima, Takao Kanzaki, Kazutoshi Kobayashi, Tatsuya Ohno, Hiroshi Sakurai
Publikováno v:
IEEE Open Journal of Engineering in Medicine and Biology, Vol 5, Pp 157-162 (2024)
Introduction: While carbon ion radiotherapy is highly effective in cancer treatment, it has a high risk of causing soft error, which leads to malfunctions in cardiac implantable electrical devices (CIEDs). To predict the risk of malfunction prior to
Externí odkaz:
https://doaj.org/article/500279b5c78d4ed99f96d474a9052019
Autor:
Hiroshi Sakurai, Kosuke Suzuki, Shoya Ishii, Kazushi Hoshi, Takashi Nozawa, Hidetsugu Ozaki, Hiroto Haga, Hiroyasu Tanigawa, Yoji Someya, Masao Tsuchiya, Hiroshi Takeuchi, Naruki Tsuji
Publikováno v:
Nuclear Materials and Energy, Vol 31, Iss , Pp 101171- (2022)
High energy X-rays (115.56 keV) were used to measure the HIPed interface of F82H steel. The X-ray energy spectra of the samples were analyzed focusing on W and Ta fluorescence X-rays, Compton scattering and elastic scattering X-rays. The results sugg
Externí odkaz:
https://doaj.org/article/f55d5b48c56741ecbec555b10245618d
Autor:
Veenavee Nipunika Kothalawala, Assa Aravindh Sasikala Devi, Johannes Nokelainen, Matti Alatalo, Bernardo Barbiellini, Tao Hu, Ulla Lassi, Kosuke Suzuki, Hiroshi Sakurai, Arun Bansil
Publikováno v:
Condensed Matter, Vol 7, Iss 4, p 54 (2022)
We discuss optical properties of layered Lithium Nickel oxide (LiNiO2), which is an attractive cathode material for realizing cobalt-free lithium-ion batteries, within the first-principles density functional theory (DFT) framework. Exchange correlati
Externí odkaz:
https://doaj.org/article/4e55c78b125f4153bfc75be6415e91ea
Autor:
Johannes Nokelainen, Bernardo Barbiellini, Jan Kuriplach, Stephan Eijt, Rafael Ferragut, Xin Li, Veenavee Kothalawala, Kosuke Suzuki, Hiroshi Sakurai, Hasnain Hafiz, Katariina Pussi, Fatemeh Keshavarz, Arun Bansil
Publikováno v:
Condensed Matter, Vol 7, Iss 3, p 47 (2022)
Reduction-oxidation (redox) reactions that transfer conduction electrons from the anode to the cathode are the fundamental processes responsible for generating power in Li-ion batteries. Electronic and microstructural features of the cathode material
Externí odkaz:
https://doaj.org/article/cefe06f8e717426fbe30184642b702b7
Autor:
Kosuke Suzuki, Kodai Takano, Shunta Suzuki, Hirotaka Hanawa, Naruki Tsuji, Tomoya Ando, Kazushi Hoshi, Yoshihiro Minato, Shuichi Ishimoto, Yoshiharu Sakurai, Hiroshi Sakurai
Publikováno v:
Crystals, Vol 12, Iss 6, p 824 (2022)
Changes in the internal state of a high-power capacitor during progressive charge–discharge cycling were measured non-destructively using high-energy synchrotron X-ray Compton scattering. The stacked structure of a laminated capacitor was clearly i
Externí odkaz:
https://doaj.org/article/5ce6267a85ac497ebc103511e7a35eed
Autor:
Hiroshi Sakurai, Manabu Takahashi, Kosuke Suzuki, Takuro Tamura, Satoshi Homma, Naruki Tsuji, Yoshiharu Sakurai
Publikováno v:
Crystals, Vol 12, Iss 5, p 690 (2022)
We measured the anisotropy of Magnetic Compton profiles (MCP) in the Fe/MgO multilayers and compared it with band structure calculations. At the Fe/MgO interface, the |m| = 1 state in the minority band is suppressed, which in turn promotes the spin-p
Externí odkaz:
https://doaj.org/article/3a7a05673a2a41bf9e6c15e390b228dc
Autor:
Kosuke Suzuki, Yuji Otsuka, Kazushi Hoshi, Hiroshi Sakurai, Naruki Tsuji, Kentaro Yamamoto, Naoaki Yabuuchi, Hasnain Hafiz, Yuki Orikasa, Yoshiharu Uchimoto, Yoshiharu Sakurai, Venkatasubramanian Viswanathan, Arun Bansil, Bernardo Barbiellini
Publikováno v:
Condensed Matter, Vol 7, Iss 1, p 4 (2021)
The redox process in a lithium-ion battery occurs when a conduction electron from the lithium anode is transferred to the redox orbital of the cathode. Understanding the nature of orbitals involved in anionic as well as cationic redox reactions is im
Externí odkaz:
https://doaj.org/article/2ec7d85d6c0b413cb63063032f9def58
Autor:
Hiroshi Sakurai, Naruki Tsuji, Yoshio Zama, Kosuke Suzuki, Kazushi Hoshi, Daisuke Hiramoto, Yoshiharu Sakurai, Tomohiko Furuhata
Publikováno v:
Crystals, Vol 11, Iss 7, p 787 (2021)
A laminar diffusion flame was measured by X-ray Compton scattering. The temperature distribution was measured from an analysis of Compton scattered X-ray intensity. The chemical state distribution was obtained from a Compton scattered X-ray spectrum
Externí odkaz:
https://doaj.org/article/6aec759810bf4e4787d0ffc36b0dfdac
Publikováno v:
Crystals, Vol 11, Iss 6, p 650 (2021)
In this study, we measured the Compton scattering spectra of Al, Ag and Au metals changing the harmonic order of X-rays from an undulator. The width of the Compton scattered X-ray spectrum changed depending on the harmonic order of X-rays. This indic
Externí odkaz:
https://doaj.org/article/1c6a2a8626f141d995233e33a7aa15c9