Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Jun Kikkawa"'
Autor:
Barun Kumar Barman, David Hernández‐Pinilla, Ovidiu Cretu, Jun Kikkawa, Koji Kimoto, Tadaaki Nagao
Publikováno v:
Advanced Science, Vol 11, Iss 41, Pp n/a-n/a (2024)
Abstract Metal‐free, luminescent, carbogenic nanomaterials (LCNMs) constitute a novel class of optical materials with low environmental impact. LCNMs, e.g., carbon dots (CDs), graphitic carbon nitride (g‐C3N4), and carbonized polymer microspheres
Externí odkaz:
https://doaj.org/article/15f978680e4e4af5b1f930ccbd005f0a
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract Unsupervised machine learning techniques have been combined with scanning transmission electron microscopy (STEM) to enable comprehensive crystal structure analysis with nanometer spatial resolution. In this study, we investigated large-scal
Externí odkaz:
https://doaj.org/article/beb8d7630c0d41748e7e5da37becf6cf
Autor:
Shunsuke Yamashita, Sei Fukushima, Jun Kikkawa, Ryoji Arai, Yuya Kanitani, Koji Kimoto, Yoshihiro Kudo
Publikováno v:
APL Materials, Vol 12, Iss 3, Pp 031101-031101-8 (2024)
Defects in semiconductor materials significantly impact their inherent properties, making the evaluation of local defects and their energy levels crucial for controlling device performance. With advancements in monochromators, electron energy loss sp
Externí odkaz:
https://doaj.org/article/cef3b4dcaf7945c5998efbb09f8a0802
Autor:
Yunqing Kang, Ovidiu Cretu, Jun Kikkawa, Koji Kimoto, Hiroki Nara, Asep Sugih Nugraha, Hiroki Kawamoto, Miharu Eguchi, Ting Liao, Ziqi Sun, Toru Asahi, Yusuke Yamauchi
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-12 (2023)
Abstract Multimetallic alloys (MMAs) with various compositions enrich the materials library with increasing diversity and have received much attention in catalysis applications. However, precisely shaping MMAs in mesoporous nanostructures and mapping
Externí odkaz:
https://doaj.org/article/53708bc997f64c25a7f69fb24904dcc9
Autor:
Koji Kimoto, Motoki Shiga, Shinji Kohara, Jun Kikkawa, Ovidiu Cretu, Yohei Onodera, Kazuo Ishizuka
Publikováno v:
AIP Advances, Vol 12, Iss 9, Pp 095219-095219-6 (2022)
The crystallographic structures of disordered materials are typically analyzed using diffractometry techniques, such as x-ray diffraction (XRD), neutron diffraction (ND), and electron diffraction (ED). Here, we demonstrate a novel technique to analyz
Externí odkaz:
https://doaj.org/article/281593365aa9498b84dca55ba3114ea7
Autor:
Yunqing Kang, Ovidiu Cretu, Jun Kikkawa, Koji Kimoto, Hiroki Nara, Asep Sugih Nugraha, Hiroki Kawamoto, Miharu Eguchi, Ting Liao, Ziqi Sun, Toru Asahi, Yusuke Yamauchi
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-1 (2023)
Externí odkaz:
https://doaj.org/article/d367181e88784a9eb818e14091960a45
Autor:
Akihisa Tsuchimoto, Xiang-Mei Shi, Kosuke Kawai, Benoit Mortemard de Boisse, Jun Kikkawa, Daisuke Asakura, Masashi Okubo, Atsuo Yamada
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Majority of oxygen-redox electrodes exhibit a large voltage hysteresis but its origin is not fully understood. Here, the authors use combined RIXS and magnetic measurements to provide insights into the origin of the typically large voltage hysteresis
Externí odkaz:
https://doaj.org/article/9a510c4647ec4dc49b810fc532ed34bf
Autor:
Miho Sawamura, Sho Kobayakawa, Jun Kikkawa, Neeraj Sharma, Damian Goonetilleke, Aditya Rawal, Nanaka Shimada, Kentaro Yamamoto, Rina Yamamoto, Yingying Zhou, Yoshiharu Uchimoto, Koji Nakanishi, Kei Mitsuhara, Koji Ohara, Jiwon Park, Hye Ryung Byon, Hiroaki Koga, Masaki Okoshi, Toshiaki Ohta, Naoaki Yabuuchi
Publikováno v:
ACS Central Science, Vol 6, Iss 12, Pp 2326-2338 (2020)
Externí odkaz:
https://doaj.org/article/a5d4b86bd866436c9ecf14bb18a5278f
Autor:
Jungo Imanishi, Masayuki Tanabe, Taisei Kurihara, Tomoaki Torigoe, Jun Kikkawa, Atsuhiko Ohta, Atsuko Watanabe, Ryuhei Tanaka, Kazuo Saita, Yuho Kadono, Yasuo Yazawa
Publikováno v:
World Journal of Surgical Oncology, Vol 18, Iss 1, Pp 1-8 (2020)
Abstract Background Prosthetic reconstruction for distal femoral osteosarcoma is challenging for younger children. We herein report a successful case of limb-sparing surgery for a younger patient with distal femoral osteosarcoma requiring osteo-artic
Externí odkaz:
https://doaj.org/article/5715e2f4daf84556aab06d715ccecd79
Autor:
Norihiko Sasaki, Mathijs F. J. Mabesoone, Jun Kikkawa, Tomoya Fukui, Nobutaka Shioya, Takafumi Shimoaka, Takeshi Hasegawa, Hideaki Takagi, Rie Haruki, Nobutaka Shimizu, Shin-ichi Adachi, E. W. Meijer, Masayuki Takeuchi, Kazunori Sugiyasu
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Connecting molecular-level phenomena to larger scales and molecular systems that resemble living systems remains a considerable challenge in supramolecular chemistry. Here, the authors report different self-assembly patterns in a porphyrin structure
Externí odkaz:
https://doaj.org/article/a442c4f7437042cd98659f24350cd6cc