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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2024-03-15 14:00 |
Fukui | UNIVERSITY OF FUKUI (Primary: On-site, Secondary: Online) |
Eigenvalue Analysis of Radio Propagation Utilizing Hollow Cylindrical Concrete Structures in Sea Water Nozomu Ishii, Naoki Kuzuu (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Qiaowei Yuan (Tohoku Inst. Tech.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC)  AP2023-217 |
This paper reports the results of an eigenmode analysis of radio propagation using a hollow cylindrical concrete structu... [more] | AP2023-217 pp.91-96 |
| AP | 2024-03-15 15:25 |
Fukui | UNIVERSITY OF FUKUI (Primary: On-site, Secondary: Online) |
Frequency Analysis of Radio Propagation Utilizing Hollow Cylindrical Concrete Structures in Sea Water Kaito Ishikawa, Masaharu Takahashi (Chiba Univ.), Nozomu Ishii (Niigata Univ.), Qiaowei Yuan (Tohoku Inst. Tech.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC) AP2023-220 |
As one of the applications of electromagnetic waves in the ocean, we conducted a basic study of a system for communicati... [more] | AP2023-220 pp.105-108 |
| WPT | 2024-03-14 16:00 |
Kyoto | Kyoto-Univ. (Uji campus) (Primary: On-site, Secondary: Online) |
Challenges in Constructing Platform for Under-water Wireless Power Transfer Systems Ikuo Awai (Fuji Waves), Ryohei Murakami, Shunsuke Hino, Masayuki Okamoto (NITUC) WPT2023-44 |
A Trial to enlarge the coupling coefficient of an electric coupling WPT system utilizing the large permittivity of water... [more] | WPT2023-44 pp.49-54 |
| RCS, SR, SRW (Joint) |
2024-03-13 13:50 |
Tokyo | The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
Performance Improvement for Differential OFDM in Shallow Sea Experiments of Underwater Acoustic Communications Taichi Fujita, Takaaki Shimomura, Kouichi Hashimoto, Takumi Yoshimura, Hiroshi Kubo (Ritsumeikan Univ.) RCS2023-261 |
The authors have been evaluating differential orthogonal frequency division multiplexing (OFDM) by means of the experime... [more] | RCS2023-261 pp.42-47 |
| AP, WPT (Joint) |
2024-01-19 14:50 |
Niigata | Tokimate, Niigata University (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Application of a pseudo-scale model allowing for conductivity changes to the air-sea two-layer problem
-- Field measurement in a simulated shallow water region at 200 MHz -- Makoto Goto, Nozomu Ishii (Niigata Univ.) AP2023-183 |
The authors have been investigating undersea positioning methods using electromagnetic waves to assist divers in rescue ... [more] | AP2023-183 pp.122-125 |
| EMCJ | 2023-11-24 15:50 |
Tokyo | Kikai-Shinko-Kaikan (Primary: On-site, Secondary: Online) |
Communication Speed Estimation of Undersea Wavelet-OFDM Communication under EM Noise Environment Shiryu Motomura, Takuto Semba (Kyutech), Toshiyuki Wakisaka (PHD), Tohlu Mastushima, Yuki Fukumoto, Kazuhiro Eguchi (Kyutech) EMCJ2023-79 |
As the marine business expands, there is a growing demand for real-time capturing of autonomous underwater vehicles (AUV... [more] | EMCJ2023-79 pp.40-45 |
| AP | 2023-10-19 10:00 |
Iwate | Iwate University (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Basic Study of Undersea Position Estimation System Using Single Receiver Shinnosuke Sakaya, Masaharu Takahashi (Chiba Univ.) AP2023-97 |
Water-related accidents are occurring all over the world. In Japan, water accidents occur approximately 1,400 per year. ... [more] | AP2023-97 pp.43-44 |
| AP | 2023-09-01 13:00 |
Tokyo | KOZO KEIKAKU ENGINEERING Inc. (Primary: On-site, Secondary: Online) |
Validation of a Pseudo-Scale Model by Evaluating Electromagnetic Fields Using the Sommerfeld Integral for the Air-Sea Two-Layer Problem Nozomu Ishii, Takanobu Watanabe (Niigata Univ.) AP2023-76 |
In this report, the numerical convergence of the Sommerfeld integral (SI) is investigated by using Sommerfeld's identity... [more] | AP2023-76 pp.55-60 |
| WPT | 2023-06-30 13:00 |
Tokyo | (Primary: On-site, Secondary: Online) |
[Invited Talk]
Loss Analysis of Contactless Power Transmission in Seawater Mamiko Inamori (Tokai Univ.) WPT2023-9 |
In recent years, contactless power transmission has become a familiar technology as it has been increasingly used in sma... [more] | WPT2023-9 p.1 |
| EMM | 2023-03-03 10:40 |
Nagasaki | Fukue culture hall (Primary: On-site, Secondary: Online) |
Suppression of averaging attacks by image reconstruction using Seam Carving Makoto Fujimura (Nagasaki Univ.), Kousuke Imamura (Kanazawa Univ.), Hideo Kuroda (Nagasaki Univ.) EMM2022-91 |
The ROI position is shifted by inserting and deleting rows of pixels using Seam Carving in the area surrounding the ROI ... [more] | EMM2022-91 pp.128-131 |
| SR, UWT (Joint) |
2023-01-26 16:40 |
Tokyo | Takanawa Campus, Tokai Univ. (Primary: On-site, Secondary: Online) |
Experimental study on the position-free wireless power supply system for feeding high power to AUV at actual sea. Yoshio Koyanagi, Syuichiro Yamaguchi, Tatsuo Yagi (PSNRD), Kazuhiro Eguchi (PCO), Ryosuke Hasaba (PIS), Hiroshi Satoh (PSNRD), Tamaki Ura (DRT) |
Practical application of wireless power supply, which can supply power even in seawater, is expected to extend the opera... [more] | |
| WPT (2nd) |
2022-12-05 - 2022-12-06 |
Kyoto | Uji Obaku Plaza Kihada Hall, Uji Campus, Kyoto University (Primary: On-site, Secondary: Online) |
Frequency characteristics of wireless power transfer in seawater via magnetic resonant coupling Yuki Miyakozawa, Takehiro Imura, Yoichi Hori (Tokyo Univ. of Science) |
Wireless power transfer in seawater has been a problem due to seawater being a highly conductive medium causing eddy cur... [more] | |
| SRW, SeMI, CNR (Joint) |
2022-11-24 16:25 |
Tochigi | Epinard Nasu (Primary: On-site, Secondary: Online) |
[Invited Talk]
A study of underwater/undersea wireless radio communication for aquatic IoT systems Yuki Fukumoto, Tohlu Matsushima, Miyuki Hirose, Toshiyuki Wakisaka (Kyutec), Kazuhiro Eguchi, Ryosuke Hasaba (Panasonic) SRW2022-22 SeMI2022-56 CNR2022-15 |
While acoustic communication technology is becoming more advanced for underwater communication, it is desirable to estab... [more] | SRW2022-22 SeMI2022-56 CNR2022-15 pp.30-34(SRW), pp.25-29(SeMI), pp.5-9(CNR) |
| SAT, KOSST | 2022-10-06 16:05 |
Fukuoka | (Primary: On-site, Secondary: Online) |
Recent increase in rain attenuation statistics of Ku-band satellite communications links and its relation to the climate change Shoya Funo, Yoshiaki Shibagaki, Yasuyuki Maekawa (Osaka Electro-Commun. Univ.) SAT2022-47 |
Rain attenuation statistics of the Ku-band BS radio wave (11.84 GHz) measured over 30 years at Osaka Electro-Communicati... [more] | SAT2022-47 pp.16-19 |
| US | 2022-08-22 14:55 |
Tokyo | Tokyo Tech (Ookayama Campus) | US2022-32 |
Currently installing a hydrophone off the coast of "Ohshima” to study the impact of marine mammals. So far, low frequenc... [more] | US2022-32 pp.19-24 |
| CS | 2022-07-14 14:40 |
Kagoshima | Yakushima Environmental and Cultural Village Center (Primary: On-site, Secondary: Online) |
[Special Invited Talk]
Research on underwater wireless technology using radio waves Takashi Matsuda, Ryotaro Suga, Ken-ichi Takizawa, Takeshi Matsumura (NICT) CS2022-25 |
Japan has the 6th largest exclusive economic zone in the world and is one of the countries with the potential to become ... [more] | CS2022-25 pp.47-52 |
| WPT, UWT (Joint) |
2021-11-12 14:45 |
Online | Online | Formulation, Validation, and Extensibility Study on the Impedance of Underwater Dipole Antennas Takuma Matsushita, Takashi Kawamura, Toshinori Kondo, Futoshi Takeuchi, Yasuhiro Matsui, Takashi Takinami, Kazuhiro Hongo, Akihiro Horii, Kazunobu Ohkuri (Sony Group Corp.) |
This paper describes the theoretical formulation for half sheath dipole antenna(HSDA) and adaption area of this formulat... [more] | |
| UWT (2nd) |
2021-06-15 13:30 |
Online | Online | [Invited Talk]
Experiment on Radio Communications under Seawater Ryotaro Suga, Takizawa Kenichi, Matsuda Takashi (NICT) |
In recent years, the use of radio waves in seawater has become attractive research fields regarding remote sensing, wire... [more] | |
| UWT (2nd) |
2021-06-15 15:35 |
Online | Online | Basic Study of Machine Learning for Underwater Location Estimation System Using Electromagnetic Waves Shinnosuke Sakaya, Masaharu Takahashi (Chiba Univ.) |
Water-related accidents are occurring all over the world. In Japan, water accidents occur approximately 1,300 per year. ... [more] | |
| MW | 2021-03-05 13:30 |
Online | Online | [Special Talk]
A Study of Magnetic Resonance Wireless Power Transfer to 10 m with Multiple Parasitic Coils in Seawater Ryosuke Hasaba, Katsuya Okamoto, Souichi Kawata, Kazuhiro Eguchi, Koyanagi Yoshio (Panasonic) MW2020-95 |
An autonomous underwater vehicle (AUV) is used for exploring marine resources and monitoring infrastructure facilities. ... [more] | MW2020-95 pp.22-27 |
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