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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 77  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
CAS, MSS, IPSJ-AL [detail] 2019-11-28
16:10
Fukuoka   Implementation of the exclusive OR of copper tape circuits using cylindrical origami
Fuminori Okuya, Yoshihiro Kawahara (Tokyo Univ.) CAS2019-52 MSS2019-31
 [more] CAS2019-52 MSS2019-31
pp.59-64
SRW, SeMI, CNR
(Joint)
2019-11-06
17:30
Tokyo Kozo Keisaku Engineering Inc. Feature Value Extraction of Fruit Trees for Crop Estimation Using 3D Point Cloud Extended Voxel Space Analysis
Kaoru Senda, Ryo Shigeta, Wei Guo, Yoshihiro Kawahara (U-Tokyo) SeMI2019-98
Data sensed by UAV or LiDAR remotely are utilized to extract 3D structure of plant for agriculture. For example, it is i... [more] SeMI2019-98
pp.145-150
COMP 2019-10-25
11:15
Hokkaido Sapporo Campus, Hokkaido University Robustness by simplification of a combinational circuit that constitutes a repetitive transition by using its output as its input
Fuminori Okuya, Yoshihiro Kawahara (UTokyo) COMP2019-21
 [more] COMP2019-21
pp.27-34
WPT, MW 2019-04-22
13:05
Tokyo Kikai-Shinko-Kaikan Bldg. A Study on a Control Method of Transmitter Arrays for Suppressing Magnetic Field Leakage from Wireless Power Transfer Systems
Daisuke Kobuchi, Yoshiaki Narusue, Yoshihiro Kawahara, Hiroyuki Morikawa (Univ.Tokyo) WPT2019-1 MW2019-1
Wireless power transfer using magnetic resonant coupling with a transmitter array can maintain high power transfer effi... [more] WPT2019-1 MW2019-1
pp.1-6
ASN, SRW
(Joint)
2018-11-05
11:15
Tokyo Tokyo Denki University, Tokyo Senju Campus Soil moisture content estimation on irrigation strategy analysis for optimal crop management
Kosuke Oda, Ryo Shigeta, Yoshihiro Kawahara (UT) ASN2018-54
Irrigation management is crucial factor to improve farming productivity, and highly skilled farmers have acquired mostly... [more] ASN2018-54
pp.13-18
ASN, SRW
(Joint)
2018-11-05
11:40
Tokyo Tokyo Denki University, Tokyo Senju Campus Bayesian optimization on dynamic problems for searching optimal climate recipe in completely controlled plant factory
Koki Isokawa, Ryo Shigeta, Yoshihiro Kawahara (UT) ASN2018-55
 [more] ASN2018-55
pp.19-24
WPT, EE
(Joint)
2018-10-04
16:40
Kyoto Kyoto Univ. Uji Campus [Invited Lecture] Design and Implementation of Wireless Powered Plarail Using 1MHz Magnetic Resonant Coupling Wireless Power Transfer
Kazunobu Sumiya, Yuki Nishizawa, Takuya Sasatani, Ryo Takahashi, Yoshiaki Narusue, Yoshihiro Kawahara (U-Tokyo) WPT2018-50
We report a wirelessly powered plastic train system using 1MHz magnetic resonance coupling, which participated in the co... [more] WPT2018-50
pp.111-114
AP, MW
(Joint)
2018-09-21
11:20
Tokyo Tokyo Tech Resonator Design Method Based on the Optimum Mesh Current Distribution for Magnetically Coupled Wireless Power Transfer
MIsaki Fujishrio, Yoshiaki Narusue, Yoshihiro Kawahara, Hiroyuki Morikawa (The Univ. of Tokyo) AP2018-85
Resonator design for wireless power transfer depends on engineers' intuition, experience and trial and error design proc... [more] AP2018-85
pp.25-30
ASN, NS, RCS, SR, RCC
(Joint)
2018-07-11
14:00
Hokkaido Hakodate Arena [Encouragement Talk] Bayesian Optimization for Searching for the Optimal Climate Recipe in Completely Controlled Plant Factory
Tatsuya Iizuka, Ryo Shigeta, Yoshihiro Kawahara (Tokyo Univ.) ASN2018-24
A data-driven method for improving the productivity in plant factories is desired. The environmental response including ... [more] ASN2018-24
pp.47-52
ICD, CPSY, CAS 2017-12-14
14:50
Okinawa Art Hotel Ishigakijima Luciola: A Millimeter-Scale Light-Emitting Particle Moving in Mid-Air Based on Acoustic Levitation and Wireless Powering
Yuki Uno, Hao Qiu, Toru Sai, Shunta Iguchi, Yota Mizutani, Takayuki Hoshi, Yoshihiro Kawahara (Univ. of Tokyo), Yasuaki Kakehi (Keio Univ.), Makoto Takamiya (Univ. of Tokyo) CAS2017-75 ICD2017-63 CPSY2017-72
Luciola is developed as a new proposal of a mid-air display drawing 3D characters. Luciola is a light-emitting particle ... [more] CAS2017-75 ICD2017-63 CPSY2017-72
pp.63-68
ASN 2017-11-16
13:25
Yamagata   Evaluation of communication stability of 920 MHz band IEEE802.15.4g in a buried type sensor for turf management
Takumi Nishiyasu, Ryo Shigeta, Yoshihiro Kawahara (U-Tokyo) ASN2017-67
 [more] ASN2017-67
pp.29-33
ASN 2017-11-16
13:50
Yamagata   Thermal/Electric Circuit Model and Evaluation of Thermal Electric Power Generation using Soil Temperature Difference
Natsuki Ikeda, Ryo Shigeta, Junichiro Shiomi, Yoshihiro Kawahara (U-Tokyo) ASN2017-68
In battery-driven sensor systems, labor cost for battery replacements is a serious matter for reducing operational cost,... [more] ASN2017-68
pp.35-40
ASN 2017-11-16
14:15
Yamagata   Modeling of Plant Growth in Completely Controlled Plant Factories by Partially Observed Markov Model
Tatsuya Iizuka, Ryo Shigeta, Yoshihiro Kawahara (U-Tokyo) ASN2017-69
 [more] ASN2017-69
pp.41-46
ASN 2017-11-16
15:20
Yamagata   [Poster Presentation] Measurement Depth Selectable Soil Moisture Profile Probe with Compatible Sensor Electrodes
Ryo Shigeta (U-Tokyo), Naoya Miyamoto (SenSprout), Yoshihiro Kawahara (U-Tokyo) ASN2017-72
Precise soil management based on sensor data contributes to enhance farming productivity. Various soil parameters in mul... [more] ASN2017-72
pp.59-64
ASN 2017-11-17
10:50
Yamagata   [Poster Presentation] Implementation of Multiple Measurement Circuit for Agriculture and Application for Self-Calibration Water Level Measurement Using Thin Film in Paddy Field
Kouta Suzuki, Ryo Shigeta (The Univ. of Tokyo), Naoya Miyamoto (SenSprout), Kazuhiro Sasaki, Yoshihiro Kawahara (The Univ. of Tokyo) ASN2017-77
There is a huge demand to deploy a number of sensors in agriculture. In order to acquire various data of agriculture wit... [more] ASN2017-77
pp.121-126
EMCJ, WPT, PEM
(Joint)
2016-11-24
09:35
Tokyo Kikai-Shinko-Kaikan Bldg. Investigation on Electrode Configurations for a Capacitive Power Transfer System Using a Receiver Array and a Sheet Transmitter
Yota Mizutani, Takuya Sasatani, Yoshiaki Narusue, Yoshihiro Kawahara, Tohru Asami (U-Tokyo) WPT2016-38
Some methods that change the state of transmission resonators have been proposed to transfer electric power to devices w... [more] WPT2016-38
pp.7-11
ASN 2016-11-18
09:10
Aichi Nagoya University [Encouragement Talk] Sensor Node Position Estimation for UAV-assisted Wireless Power Transfer on Agricultural Sensor Systems
Ryo Shigeta, Kouta Suzuki, Yoshihiro Kawahara, Tohru Asami (U-Tokyo) ASN2016-54
In this paper, we present a battery-less agricultural sensor system that is wirelessly powered from unmanned aerial vehi... [more] ASN2016-54
pp.73-78
ASN 2016-11-18
09:30
Aichi Nagoya University Localization by a Web Camera for Low-cost Agricultural Mobile Robots
Kazunobu Sumiya, Ryo Shigeta, Yoshihiro Kawahara, Toru Asami (U-Tokyo), Naoki Kabaya (WorkRobot) ASN2016-55
Robust and accurate self-localization is required for autonomous mobile robots to complete their tasks in various fields... [more] ASN2016-55
pp.79-84
ASN 2016-11-18
10:30
Aichi Nagoya University Low-cost water level sensor based on simple TDR using reflection time measurement by mass-produced microcontroller
Kouta Suzuki, Ryo Shigeta, Yoshihiro Kawahara, Tohru Asami (The Univ. of Tokyo) ASN2016-58
Low-cost water level sensor is necessary for a large scale deployment of water level management in many fields.Conventio... [more] ASN2016-58
pp.97-102
NS, IN
(Joint)
2016-03-03
11:00
Miyazaki Phoenix Seagaia Resort System Response Evaluation of Distributed SNS based on ID-Based Aggregate Signatures
Shinji Oyama, Takaaki Sunaga, Masaru Takagi, Yoshihiro Kawahara, Tohru Asami (UTokyo) IN2015-121
Most of the SNS services are managed by their central servers.
For an availability of SNS service in a disaster area, a... [more]
IN2015-121
pp.77-82
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