Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Tohru Ishiguro"'
Autor:
Saskia Schimmel, Daisuke Tomida, Tohru Ishiguro, Yoshio Honda, Shigefusa F. Chichibu, Hiroshi Amano
Publikováno v:
Materials, Vol 16, Iss 5, p 2016 (2023)
With the ammonothermal method, one of the most promising technologies for scalable, cost-effective production of bulk single crystals of the wide bandgap semiconductor GaN is investigated. Specifically, etch-back and growth conditions, as well as the
Externí odkaz:
https://doaj.org/article/7849afc2f112463681c8b4cea913737e
Autor:
Saskia Schimmel, Michael Salamon, Daisuke Tomida, Steffen Neumeier, Tohru Ishiguro, Yoshio Honda, Shigefusa F. Chichibu, Hiroshi Amano
Publikováno v:
Materials, Vol 15, Iss 17, p 6165 (2022)
For the fundamental understanding and the technological development of the ammonothermal method for the synthesis and crystal growth of nitrides, an in situ monitoring technique for tracking mass transport of the nitride throughout the entire autocla
Externí odkaz:
https://doaj.org/article/ebad211dbf0546baad7b967d68d8abb8
Numerical Simulation of Ammonothermal Crystal Growth of GaN—Current State, Challenges, and Prospects
Autor:
Saskia Schimmel, Daisuke Tomida, Tohru Ishiguro, Yoshio Honda, Shigefusa Chichibu, Hiroshi Amano
Publikováno v:
Crystals, Vol 11, Iss 4, p 356 (2021)
Numerical simulations are a valuable tool for the design and optimization of crystal growth processes because experimental investigations are expensive and access to internal parameters is limited. These technical limitations are particularly large f
Externí odkaz:
https://doaj.org/article/d0d0e2cd6b3343a59697c4f36d0bd4ea
Publikováno v:
Journal of Thermal Science and Technology, Vol 7, Iss 2, Pp 379-386 (2012)
We report and discuss an experiment and numerical simulation of heat transfer by natural convection inside an autoclave for the solvothermal growth of bulk crystalline GaN. The inner diameter and height of the autoclave were φ 20 and 335 mm, respect
Externí odkaz:
https://doaj.org/article/3968d88edfac469ebb6112842ec515b5
Autor:
Naotoshi Sugimoto, Yumi Miyashita, Takaki Yoshikawa, Masakazu Takagi, Masato Nakamura, Shigeyuki Tamura, Hiroko Hasegawa, Kenta Murotani, Akira Tsuburaya, Junichi Sakamoto, Kazuhiro Nishikawa, Tadashi Shigematsu, Kazumasa Fujitani, Hitoshi Inagaki, Tohru Ishiguro, Satoshi Morita, Shinya Tokunaga, Yusuke Akamaru, Toshimasa Tsujinaka
Publikováno v:
European Journal of Cancer. 132:159-167
Background Second-line chemotherapy (SLC) improves survival in advanced gastric cancer (AGC). Patients receiving SLC are categorized into two disease status groups: tumour progression after first-line chemotherapy and early recurrence after adjuvant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5249ceeb5250a530e9e140f62a9b9c71
https://doi.org/10.1016/j.ejca.2020.03.027
https://doi.org/10.1016/j.ejca.2020.03.027
Publikováno v:
Ammonothermal Synthesis and Crystal Growth of Nitrides ISBN: 9783030563042
The ammonothermal method involves an upper and lower temperature difference that is provided in an autoclave by a baffle plate, and GaN, which is dissolved in supercritical ammonia in the raw material dissolution region and deposited on a seed crysta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24fe200fcfb4f8968c047f1d1faad722
https://doi.org/10.1007/978-3-030-56305-9_5
https://doi.org/10.1007/978-3-030-56305-9_5
Autor:
Kun Qiao, Shigefusa F. Chichibu, Kouhei Kurimoto, Daisuke Tomida, Quanxi Bao, Makoto Saito, Kazunobu Kojima, Tohru Ishiguro
Publikováno v:
Journal of Crystal Growth. 570:126190
We describe a facile method for synthesizing high-purity Zn-doped and Mg-doped GaN powders from Ga metal in supercritical ammonia at a moderate reaction temperature using ZnX2 and MgX2 (X = F, Cl, Br, or I) as combined mineralizers and doping agents.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f15da679b008c08cfefa20be3657f70f
https://doi.org/10.1016/j.jcrysgro.2021.126190
https://doi.org/10.1016/j.jcrysgro.2021.126190
Autor:
Kohei Shima, Tohru Ishiguro, Shigefusa F. Chichibu, Kazunobu Kojima, Quanxi Bao, Ryu Osanai, Daisuke Tomida, Makoto Saito
Publikováno v:
Applied Physics Express. 13:055505
Seeded ammonothermal growths of a few-mm-thick GaN crystals on a 2 inch diameter c-plane and a 45 mm long m-plane GaN wafers were carried out by using an NH4F mineralizer in a 60 mm diameter Ag-lined autoclave. As a result of dynamic control of the t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bbe8f5623e5af8a989dd5799ef69985
https://doi.org/10.35848/1882-0786/ab8722
https://doi.org/10.35848/1882-0786/ab8722
Autor:
Akira Tsuburaya, Kenta Murotani, Junichi Sakamoto, Naotoshi Sugimoto, Masakazu Takagi, Masato Nakamura, Toshimasa Tsujinaka, Kazumasa Fujitani, Shigeyuki Tamura, Kazuhiro Nishikawa, Yumi Miyashita, Shinya Tokunaga, Hiroko Hasegawa, Yusuke Akamaru, Tohru Ishiguro, Tadashi Shigematsu, Satoshi Morita, Takaki Yoshikawa, Hitoshi Inagaki
Publikováno v:
Cancer chemotherapy and pharmacology. 83(5)
Many patients with gastric cancer relapse during or early after adjuvant chemotherapy. The standard treatment for early relapse patients is a second-line chemotherapy (SLC) based on irinotecan, taxanes, or a platinum-based chemotherapy. The platinum-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f2e0b3b22fa3affa3316b9d691dd55d
https://pubmed.ncbi.nlm.nih.gov/30806758
https://pubmed.ncbi.nlm.nih.gov/30806758
Autor:
Keiichiro Ishibashi, Satoshi Hatano, Erito Mochiki, Hideyuki Ishida, Jun-ichi Tamaru, Tohru Ishiguro, Kensuke Kumamoto
Publikováno v:
Japanese Journal of Clinical Oncology. 45:35-42
OBJECTIVE This study was performed to clarify whether size criteria could be applied to the prediction of metastasis to the mesorectal, internal iliac and obturator lymph nodes in patients with lower rectal cancer. METHODS A total of 915 lymph nodes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2aa3f1562e6cf31d9deea55da1e0cd4e
https://doi.org/10.1093/jjco/hyu162
https://doi.org/10.1093/jjco/hyu162