Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Tomoki Ichikawa"'
Publikováno v:
Acoustical Science and Technology. 44:176-185
Autor:
Koichi Yoshihisa, Hyojin Lee, Katsuya Yamauchi, Tomoaki Uemura, Tomoki Ichikawa, Miki Yonemura, Yasuaki Okada, Shinichi Sakamoto
Publikováno v:
Acoustical Science and Technology. 41:598-606
Publikováno v:
CVPR
The sky exhibits a unique spatial polarization pattern by scattering the unpolarized sun light. Just like insects use this unique angular pattern to navigate, we use it to map pixels to directions on the sky. That is, we show that the unique polariza
Autor:
Urara Ota, Inoru Yokoe, Norihiko Ito, Liming Li, Masahiro Ishizuka, Kiwamu Takahashi, Hideo Imazato, Yoshiharu Okamoto, Takeshi Tsuka, Tomohiro Osaki, Tomoki Ichikawa, Kazuo Azuma, Yusuke Murahata, Tomohiro Imagawa, Masamichi Yamashita, Takuya Ishii, Tohru Tanaka, Yuji Sunden
Publikováno v:
Cancers
Cancers, Vol 11, Iss 4, p 495 (2019)
Volume 11
Issue 4
Cancers, Vol 11, Iss 4, p 495 (2019)
Volume 11
Issue 4
5-Aminolevulinic acid (5-ALA), a commonly used photosensitizer in photodynamic detection (PDD) and therapy (PDT), is converted in situ to the established photosensitizer protoporphyrin IX (PpIX) via the heme biosynthetic pathway. To extend 5-ALA-PDT
Autor:
Hiroshi Amano, Motoaki Iwaya, Kenichiro Takeda, Satoshi Kamiyama, Tomoki Ichikawa, Isamu Akasaki, Kengo Nagata, Kentaro Nagamatsu
Publikováno v:
physica status solidi (a). 207:1393-1396
We demonstrated activation annealing of Mg-doped p-type Al 0.17 Ga 0.83 N in different gases. The hole concentration of Al 0.17 Ga 0.83 N annealed in oxygen is higher than that annealed in nitrogen or air. A hole concentration of 1.3 × 10 16 cm -3 a
Autor:
Yuji Ogiso, Hiroshi Amano, Motoaki Iwaya, Tetsuya Takeuchi, Masakazu Kuwabara, Satoshi Kamiyama, Hirofumi Kan, Harumasa Yoshida, Yoshinori Oshimura, Kengo Nagata, Yoji Yamashita, Tomoki Ichikawa, Isamu Akasaki, Kenichiro Takeda, Kentaro Nonaka
Publikováno v:
physica status solidi c. 8:464-466
We fabricated and evaluated GaN/AlGaN multi-quantum wells (MQWs) and ultraviolet laser diodes (UV LDs) on high and low dislocation density underlying layers by epitaxial lateral overgrowth (ELO) method. We analyzed the internal quantum efficiency (IQ
Autor:
Yoji Yamashita, Hiroshi Amano, Motoaki Iwaya, Harumasa Yoshida, Masakazu Kuwabara, Kenichiro Takeda, Satoshi Kamiyama, Tomoki Ichikawa, Isamu Akasaki, Kengo Nagata, Yuji Ogiso, Hirofumi Kan
Publikováno v:
SPIE Proceedings.
We fabricated UV laser diodes (LDs). A high-temperature annealing at 850 °C for a short duration was found to be very effective for reducing the series resistance of an n-type contact. By applying high-temperature annealing, the operating voltage of
Autor:
Masakazu Enomoto, Hiroyuki Yamato, Takeshi Takatoya, Yuki Nakagawa, Tomoki Ichikawa, Takai Tadao, Takeo Koyama, Takashi Manabe
Publikováno v:
Journal of the Society of Naval Architects of Japan. 1991:183-190
The Hydrofoil Catamaran (HC) concept has been developed based on the tank test at University of Tokyo. In 1990, the prototype for HC named “Exceller” was built and actual sea testing was conducted. The Exceller has flaps and ailerons for pitch, h
Publikováno v:
The Proceedings of the JSME Conference on Frontiers in Bioengineering. :93-94
Autor:
Kengo Nagata, Motoaki Iwaya, Tomoki Ichikawa, Isamu Akasaki, Satoshi Kamiyama, Kentaro Nagamatsu, Hiroshi Amano, Kenichiro Takeda
Publikováno v:
Japanese Journal of Applied Physics. 48:101002
Annealing in oxygen ambient was found to be effective for realizing a high hole concentration in p-type Al0.17Ga0.83N:Mg. The maximum hole concentration obtained was 1.3×1016 cm-3 at room temperature. Hydrogen dissociation from Mg-doped Al0.17Ga0.83