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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP, WPT (Joint) |
2024-01-19 14:50 |
Niigata | Niigata Univ. (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.) |
[more] | |
| 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 |
| UWT (2nd) |
2023-05-25 13:15 |
Shizuoka | Differences in Received Level Distribution by Scale Factor in a Pseudo-Scale Model Experimental System for the Air-Sea Two-Layer Problem Makoto Goto, Taiga Wakabayashi, Nozomu Ishii (Niigata Univ.) |
[more] | ||
| AP (2nd) |
2022-12-08 15:05 |
Okinawa | (Primary: On-site, Secondary: Online) |
Measurement Range Extension of Near-Field Gain of Dipole Antenna Operating in Pure Water at 6 GHz and Above Keita Sekiya, Yuki Kato, Nozomu Ishii (Niigata Univ.), Yuto Shimizu, Tomoaki Nagaoka (NICT) |
[more] | |
| RCS, AP, UWT (Joint) |
2022-11-15 17:05 |
Fukuoka | Kyushu University, and Online (Primary: On-site, Secondary: Online) |
Numerical Simulation of Pseudo-Scale Model of Air-Sea Problem with Tank Wall Anri Kamiya, Nozomu Ishii (Niigata Univ.) |
[more] | |
| WPT, UWT (Joint) |
2021-11-12 13:55 |
Online | Online | Modification of Pseudo-Scale Model Experiment System to Improve the Detection Accuracy of Underwater Position Estimation Ryota Sase, Nozomu Ishii (Niigata Univ.) |
[more] | |
| AP (2nd) |
2021-06-18 10:10 |
Online | Online | Estimation of near-field gain and liquid's electrical properties using dipole antennas operated in lossy liquid in the range of 2 GHz to 4 GHz Keita Sekiya, Nozomu Ishii (Niigata Univ.), Yuto Shimizu, Tomoaki Nagaoka (NICT) |
[more] | |
| UWT (2nd) |
2021-06-15 14:05 |
Online | Online | [Invited Lecture]
Measurement of Transmission Characteristics between Two Electrical Small Antennas in Lossy Medium
-- To Construct a Measurement System for a Pseudo Scale Model for Electromagnetic Fields in Underwater -- Nozomu Ishii (Niigata Univ.) |
[more] | |
| EMCJ, MICT (Joint) |
2021-03-05 10:05 |
Online | Online | A Study of Uncertainty Evaluations for SAR Probe Calibration in Frequency Band of 5G Sub-6 Yuto Shimizu, Tomoaki Nagaoka, Nozomu Ishii, Kanako Wake, Soichi Watanabe (NICT) EMCJ2020-75 |
Nowadays, the fifth generation wireless mobile system (5G), which was released in 2020, mainly uses a frequency band fro... [more] | EMCJ2020-75 pp.17-21 |
| RCS, AP, UWT (Joint) |
2020-11-26 09:25 |
Online | Online | How does underwater antenna work in salty water by applying an electromagnetic field Hiroshi Yoshida (JAMSTEC), Nozomu Ishii (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Qiang Chen (Tohoku Univ.) AP2020-83 RCS2020-122 |
[more] | AP2020-83 RCS2020-122 pp.56-59(AP), pp.71-74(RCS) |
| 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) |
| AP (2nd) |
2020-08-24 14:00 |
Online | Online | A Consideration on Transmission Characteristics Between Transmitting and Receiving Antennas in Tissue Equivalent Liquid in the kHz Band Using a Long Tank Riki Masuda, Nozomu Ishii (Niigata Univ.), Chakarothai Jerdvisanop, Yuto Shimizu, Kanako Wake, Soichi Watanabe (NICT) |
[more] | |
| EMCJ | 2020-07-02 13:25 |
Online | Online | An Analysis on Main Uncertainty Factors of System Validation and Probe Calibration for SAR Measurement Yuto Shimizu (NICT), Nozomu Ishii (NICT/Niigata Univ.), Tomoaki Nagaoka, Kanako Wake, Soichi Watanabe (NICT) EMCJ2020-11 |
The specific absorption rate (SAR) is used for an assessment of a human exposure from wireless communication devices. Wi... [more] | EMCJ2020-11 pp.1-5 |
| EMCJ, IEE-EMC | 2019-12-13 14:25 |
Aichi | Chukyo University | A design on a matching section of a waveguide for a SAR probe calibration Yuto Shimizu (NICT), Nozomu Ishii (NICT/Niigata Univ.), Tomoaki Nagaoka, Kanako Wake, Soichi Watanabe (NICT) EMCJ2019-77 |
In a compliance test of wireless communication devices, a head or a flat phantom filled with a human tissue equivalent l... [more] | EMCJ2019-77 pp.13-18 |
| 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 |
| 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 |
| 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 |
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