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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, AP, UWT (Joint) |
2020-11-26 09:50 |
Online | Online | Acceleration of Numerical Integration of Electric Field Specialized for Shallow Sea Position Estimation Nozomu Ishii (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC)  AP2020-84 RCS2020-123 |
The authors have studied shallow a location system in the shallow sea using electromagnetic fields. In this case, it is ... [more] | AP2020-84 RCS2020-123 pp.60-65(AP), pp.75-80(RCS) |
| RCS, AP, UWT (Joint) |
2020-11-26 10:15 |
Online | Online | Verification of Undersea Position Estimation Method Using Received Power Profile at Multiple Sea Surface Positions by Experimental Pseudo Scale Model Ryota Sase, Nozomu Ishii (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC) AP2020-85 RCS2020-124 |
The authors have investigated an underwater position estimation system in shallow water that operates in the kHz band. I... [more] | AP2020-85 RCS2020-124 pp.66-71(AP), pp.81-86(RCS) |
| RCS, AP, UWT (Joint) |
2020-11-26 11:20 |
Online | Online | [Invited Lecture]
Adaptive digital down-conversion for underwater acoustic communication Mitsuyasu Deguchi, Yukihiro Kida, Takuya Shimura (JAMSTEC) AP2020-86 RCS2020-125 |
In underwater acoustic communication, effects of the Doppler shift is much larger than that of the radio communication i... [more] | AP2020-86 RCS2020-125 pp.72-77(AP), pp.87-92(RCS) |
| RCS, AP, UWT (Joint) |
2020-11-27 11:45 |
Online | Online | Fundamental examination of technology of underwater multi-stages contact-less power and signal transfer Junya Ishiwata, Tomoya Inoue (JAMSTEC), Ikuo Awai (Ryutech) |
[more] | |
| MIKA (3rd) |
2020-10-08 16:00 |
Niigata | (Primary: On-site, Secondary: Online) |
[Invited Talk]
On the use of RF signals in seawater Kenichi Takizawa, Ryotaro Suga, Takashi Matsuda (NICT), Hiroshi Yoshida (JAMSTEC), Fumihide Kojima (NICT) |
[more] | |
| US | 2020-08-26 13:00 |
Online | Online | Rescue and analysis of legacy data
-- Utilization of multidisciplinary long-term continuous observation including acoustic method on deep seafloor -- Ryoichi Iwase (JAMSTEC) US2020-20 |
Since the installation of the cabled observatory offshore of Hatsushima Island in Sagami Bay in 1993, the Japan Agency f... [more] | US2020-20 pp.1-4 |
| WPT | 2020-03-07 10:30 |
Kyoto | (Cancelled but technical report was issued) |
Coils and ferrites at the junction of a super multi-stage non-contact power supply drill pipe Examination of integrated structure Hidemasa Sawai, Toshio Ishizaki (Ryukoku Univ), Tomoya Inoue, Junya Ishiwata (JAMSTEC), Ikuo Awai (Ryutech) WPT2019-74 |
[more] | WPT2019-74 pp.89-94 |
| AP | 2019-12-12 13:40 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A Consideration on a Reception of Electromagnetic Wave Signals at the Sea Level in the Shallow Sea Area Nozomu Ishii (Niigata Univ.), Masaharu Takahashi, Ryosuke Kato (Chiba Univ.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC) AP2019-143 |
In order to estimate the position of a diver in a submarine search at the time of a flood accident in shallow water, we ... [more] | AP2019-143 pp.7-12 |
| AP, RCS (Joint) |
2019-11-22 15:05 |
Saga | Saga Univ. | [Invited Lecture]
Study on Underwater Acoustic Communication using Time-Reversal DFE
-- Application for MIMO and Multiuser Communication -- Takuya Shimura, Mitsuyasu Deguchi, Yukihiro Kida, Yoshitakawa Watanabe (JAMSTEC) AP2019-139 RCS2019-234 |
In underwater acoustic communication, effects of multipath interferences and Doppler shift are much larger than those in... [more] | AP2019-139 RCS2019-234 pp.181-186(AP), pp.175-180(RCS) |
| CCS | 2019-11-14 13:00 |
Hyogo | Kobe Univ. | Phase reduction approach to spatiotemporal synchronization of traveling and oscillating convection Yoji Kawamura (JAMSTEC) CCS2019-24 |
We formulate a theory for the phase reduction of traveling and oscillating thermal convection in a two-dimensional incom... [more] | CCS2019-24 pp.1-4 |
| EMCJ, MW, EST, IEE-EMC [detail] | 2019-10-24 12:55 |
Miyagi | Tohoku Gakuin University(Conf. Room 2, Eng. Bldg. 1) | A Study on Heatstroke Risk Assessment in Urban Space Toshiki Kamiya, Akimasa Hirata (NITech), Ryo Onishi (JAMSTEC) EMCJ2019-43 MW2019-72 EST2019-51 |
It is essential to analyze the time evolution of body temperature elevation and water loss for evaluating the risk of he... [more] | EMCJ2019-43 MW2019-72 EST2019-51 pp.39-44 |
| WPT, EE (Joint) |
2019-10-10 14:40 |
Shiga | Ryukoku Extension Center, Ryukoku University | Contactless Power Transfer in a Drill Pipe with Close-Coupled Coils Hidemasa Sawai, Toshio Ishiaki (Ryukoku Univ), Tomoya Inoue, Junya Ishiwata (JAMSTEC), Ikuo Awai (Ryutech) WPT2019-41 |
[more] | WPT2019-41 pp.79-82 |
| MW, AP (Joint) |
2019-09-19 13:35 |
Kanagawa | JAXA (Sagamihara) | Measurement of Phase Distribution between Small Dipole Antennas Immersed in Simulated Sea Water Using Pseudo Scale Model Nozomu Ishii (Niigata Univ.), Masaharu Takahashi, Ryosuke Kato (Chiba Univ.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC) AP2019-72 |
The authors deal with the problem of position estimation in the sea using electromagnetic waves as one of the applicatio... [more] | AP2019-72 pp.13-18 |
| US | 2019-08-28 15:20 |
Tokyo | Study on the estimation of seismic wave velocity of seafloor surface and the localization of low frequency sound source on sea surface around Japan Trench
-- Analysis of the received waveform of airgun by accelerometer at S-net station -- Ryoichi Iwase (JAMSTEC) US2019-42 |
A submarine cabled observatory "S-net" (Seafloor observation network for earthquakes and tsunamis along the Japan Trench... [more] | US2019-42 pp.27-31 |
|
| US | 2019-08-28 15:45 |
Tokyo | Research and Development of High-Rate Underwater Acoustic Communication
-- Research on Time-Reversal MIMO Acoustic Communication and Development of Acoustic Communication System for Manned Submersible SHINKAI6500 -- Takuya Shimura, Mitsuyasu Deguchi, Yukihiro Kida, Yoshitaka Watanabe (JAMSTEC) US2019-43 |
In underwater acoustic communication, effects of multipath interferences and Doppler shift are much larger than those in... [more] | US2019-43 pp.33-38 |
|
| AP | 2019-08-22 14:35 |
Hokkaido | Hokkai-Gakuen Univ. | Design and Evaluation of Antennas in Seawater Qiang Chen, Hiroyasu Sato (Tohoku Univ.), Nozomu Ishii (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Hiroshi Yoshida (JAMSTEC) AP2019-60 |
[more] | AP2019-60 pp.69-71 |
| AP | 2019-08-22 15:00 |
Hokkaido | Hokkai-Gakuen Univ. | 3D Pattern Measurement of an Underwater Dipole Antenna Using Pseudo Scale Model Nozomu Ishii (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC) AP2019-61 |
Electromagnetic field distribution in the sea should be essentially measured when developing a system that uses electrom... [more] | AP2019-61 pp.73-78 |
| AP | 2019-08-22 15:25 |
Hokkaido | Hokkai-Gakuen Univ. | Fundamental study of electromagnetic wave propagation in the sea at frozen Saroma lake Ryosuke Kato, Masaharu Takahashi (Chiba Univ.), Hiroshi Yoshida (JAMSTEC), Nozomu Ishii (Niigata Univ.), Chen Qiang (Tohoku Univ.) AP2019-62 |
As a basic study of an undersea positioning system using electromagnetic waves, we investigated an attenuation of electr... [more] | AP2019-62 pp.79-83 |
| AP | 2019-08-22 16:05 |
Hokkaido | Hokkai-Gakuen Univ. | [Special Talk]
A VLF lighthouse for localization of under sea-ice robots
-- An experimental study of VLF electromagnetic wave propagation between sea-ice surface and sea water -- Hiroshi Yoshida (JAMSTEC) |
[more] | |
| AP (2nd) |
2019-06-25 14:35 |
Hokkaido | Wakkanai City Japan-Russia Friendship Hall | Low frequency electromagnetic wave propagation between ice-surface and sea-water measured in Saroma Lake. Hiroshi Yoshida, Ryo sato (JAMSTEC), Masaharu Takahashi (Chiba Univ.), Nozomu Ishii (Niigata Univ.), Qiang Chen (Tohoku Univ.), Ryosuke Kato (Chiba Univ.) |
[more] | |
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