Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
AP, WPT (Joint) |
2025-01-23 14:35 |
Shimane |
Rokan, Matsue (Shimane, Online) (Primary: On-site, Secondary: Online) |
Long-term trends in Rainfall extreme data in Japan [III] Yoshio Karasawa AP2024-174 |
This presentation is a sequel to the AP-ken presentation of the same title in October last year. In recent years, the is... [more] |
AP2024-174 pp.39-44 |
AP |
2024-10-18 09:20 |
Fukuoka |
ACROS Fukuoka (Fukuoka, Online) (Primary: On-site, Secondary: Online) |
Long-term trends in rainfall extreme data in Japan [II] Yoshio Karasawa AP2024-126 |
This presentation is a sequel to the AP-ken presentation of the same title in April this year. In recent years, the issu... [more] |
AP2024-126 pp.200-205 |
AP, SANE, SAT (Joint) |
2024-07-25 13:50 |
Hokkaido |
Frontier Research in Applied Sciences Building, Hokkaido University (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
Radio propagation and communication feature for lunar exploration communication Johta Awano, Taiki Takamatsu (JAXA), Akira Yamaguchi, Akira Akasaka (KDDI), Yoshio Karasawa (UEC) SANE2024-21 |
[more] |
SANE2024-21 pp.25-30 |
AP |
2024-04-11 13:25 |
Hyogo |
KOBE PORT OASIS (Hyogo, Online) (Primary: On-site, Secondary: Online) |
Long-term trends in rainfall extreme data in Japan Yoshio Karasawa AP2024-2 |
We investigate the statistical properties of extreme rainfall data (annual maximum values) in Japan. Since rainfall char... [more] |
AP2024-2 pp.7-12 |
AP |
2024-04-11 13:50 |
Hyogo |
KOBE PORT OASIS (Hyogo, Online) (Primary: On-site, Secondary: Online) |
Statistics of the maximum rainfall for N years in Japan Yoshio Karasawa AP2024-3 |
We investigate the statistical properties of extreme rainfall data (annual maximum values) in Japan. This report is a se... [more] |
AP2024-3 pp.13-18 |
AP |
2023-12-14 15:20 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. (Tokyo, Online) (Primary: On-site, Secondary: Online) |
On Poynting Vector in Static Electromagnetic Field [III]
-- Physical Meaning of Energy Flow Velocity -- Yoshio Karasawa AP2023-159 |
The Poynting vector represented by E×H has an important function in the radiation analysis of antennas or so. In the ene... [more] |
AP2023-159 pp.24-29 |
AP |
2023-09-01 10:00 |
Tokyo |
KOZO KEIKAKU ENGINEERING Inc. (Tokyo, Online) (Primary: On-site, Secondary: Online) |
Historical visit to three Nakagami distributions: Part 3: m distribution Yoshio Karasawa AP2023-72 |
The three probability distributions, namely, n distribution, q distribution, and m distribution devised by Minoru Nakaga... [more] |
AP2023-72 pp.31-36 |
AP, SANE, SAT (Joint) |
2023-07-13 15:50 |
Hokkaido |
The Citizen Activity Center (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Historical visit to three Nakagami distributions: Part 2: q distribution Yoshio Karasawa AP2023-52 |
The three probability distributions, namely, n distribution, q distribution, and m distribution devised by Minoru Nakaga... [more] |
AP2023-52 pp.115-120 |
AP |
2023-06-15 15:45 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. (Tokyo, Online) (Primary: On-site, Secondary: Online) |
Historical visit to three Nakagami distributions: Part 1: n distribution Yoshio Karasawa AP2023-29 |
The three probability distributions, namely, n distribution, q distribution, and m distribution devised by Minoru Nakaga... [more] |
AP2023-29 pp.27-32 |
AP |
2022-10-20 11:45 |
Gifu |
GIFU CITY CULTURE CENTER (Gifu, Online) (Primary: On-site, Secondary: Online) |
On Poynting Vector in Statistic Electromagnetic Field
-- An image of energy flow mechanism -- Yoshio Karasawa AP2022-138 |
The Poynting vector represented by E×H has an important function in the radiation analysis of antennas or so. In the ene... [more] |
AP2022-138 pp.193-198 |
AP, SANE, SAT (Joint) |
2022-07-29 10:25 |
Hokkaido |
Asahikawa Taisetsu Crystal Hall (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
On Poynting Vector in Static Electromagnetic Field Yoshio Karasawa AP2022-55 |
The Poynting vector represented by E×H has an important function in the radiation analysis of antennas or so. In the ene... [more] |
AP2022-55 pp.119-124 |
AP |
2022-02-18 14:55 |
Online |
Online (Online) |
On Array Antenna Gain in Closely-Spaced Arrangement Yoshio Karasawa AP2021-177 |
Theoretically, the gain of the array antenna fed in-phase by the omnidirectional antenna elements will approach 1 as the... [more] |
AP2021-177 pp.104-109 |
AP |
2020-05-21 15:10 |
Okinawa |
Tiruru Okinawa (Naha-city) (Okinawa) (Cancelled, technical report was not issued) |
Consideration on mmWave Propagation Channel Modeling [I]
-- Statistical analysis after ray tracing of propagation environment -- Yoshio Karasawa |
Ray tracing is a promising tool for evaluating the millimeter wave propagation environment. In this report, we summarize... [more] |
|
AP |
2020-05-21 15:35 |
Okinawa |
Tiruru Okinawa (Naha-city) (Okinawa) (Cancelled, technical report was not issued) |
Consideration on mmWave Propagation Channel Modeling [II]
-- On multi-state statistical propagation model including semi-LOS environments -- Yoshio Karasawa |
In terrestrial millimeter-wave communication, since the line-of-sight (LOS) and/or semi-LOS (SLOS) propagation environme... [more] |
|
AP |
2020-03-26 16:00 |
Fukui |
Fukui College (Fukui) (Cancelled but technical report was issued) |
Revisit to Friis Transmission Formula [II]
-- On Relation between Antenna Gain and Effective Area -- Yoshio Karasawa AP2019-203 |
Friis's transmission formula is a basic formula that is the starting point for wireless transmission. Four years ago, we... [more] |
AP2019-203 pp.35-40 |
RCS, SR, SRW (Joint) |
2020-03-04 09:00 |
Tokyo |
Tokyo Institute of Technology (Tokyo) (Cancelled but technical report was issued) |
On Capacity of Massive MIMO in Maltiuser Operation [III]
-- A Simple Calculation Scheme of Channel Capacity in SMST Transmission -- Yoshio Karasawa RCS2019-331 |
In our previous report [1], we focused on the channel capability of Massive MIMO and investigated the relationship among... [more] |
RCS2019-331 pp.57-62 |
AP |
2020-02-21 11:25 |
Shizuoka |
Shizuoka Univ. Hamamatsu Campus (Shizuoka) |
Random Walk and Wave Propagation Yoshio Karasawa AP2019-190 |
While doing a random walk, we visit some basic probability distributions that appear in radio wave propagation models. R... [more] |
AP2019-190 pp.53-57 |
IT, SIP, RCS |
2020-01-24 16:40 |
Hiroshima |
Hiroshima City Youth Center (Hiroshima) |
On Capacity of Massive MIMO in Multiuser Operation [II]
-- In the case of LOS environments -- Yoshio Karasawa IT2019-85 SIP2019-98 RCS2019-315 |
In our previous report, we focused on the channel capability of Massive MIMO and investigated the relationship among var... [more] |
IT2019-85 SIP2019-98 RCS2019-315 pp.291-296 |
AP |
2019-12-12 13:15 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. (Tokyo) |
On Capacity of Massive MIMO in Multiuser Operation Yoshio Karasawa AP2019-142 |
In our previous report, we focused on the channel capability of Massive MIMO and investigated the relationship with the ... [more] |
AP2019-142 pp.1-6 |
AP |
2019-08-21 14:35 |
Hokkaido |
Hokkai-Gakuen Univ. (Hokkaido) |
Long-term Statistics of Maximum Rainfall in Japan based on Statistics of Extremes Yoshio Karasawa AP2019-49 |
In the first half of this report, we evaluate long-term statistics of the largest rainfall data in each year concerning ... [more] |
AP2019-49 pp.13-18 |