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All Technical Committee Conferences  (Searched in: All Years)

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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 23  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
CQ, CBE
(Joint)
2024-01-26
15:05
Kumamoto Kurokawa-Onsen
(Primary: On-site, Secondary: Online)
A Study of Handover Methods Considering Multipath Interference in a Mixed Network of Heterogeneous Base Stations
Kakeru Hirata (NIT), Satoshi Ujigawa (KazimaTec), Takahiro Matsuda (TMU), Jiro Hirokawa (TT), Tetsurou Imai (TDU), Takefumi Hiraguri (NIT) CQ2023-69
 [more] CQ2023-69
pp.94-99
OCS, OFT, IEE-CMN, ITE-BCT
(Joint) [detail]
2023-11-09
13:00
Kyoto
(Primary: On-site, Secondary: Online)
[Invited Talk] Recent developments of infrastructure sensing in civil structures with embedded optical fiber sensor
Yuichi Yoshimura, Kotaro Fujiwara, Ayaka Nasu, Michio Imai, Hideki Nagatani, Junichi Kawabata (Kajima) OFT2023-47
Distributed fiber optical sensing, which comprehensively detects deformations in civil structures, is applied to constru... [more] OFT2023-47
pp.1-4
OFT 2023-10-12
10:10
Tokyo Kikai-Shinko-Kaikan Bldg.
(Primary: On-site, Secondary: Online)
[Poster Presentation] Application of distributed fiber-optic strain sensing to detection rock fracture
Tianjun Zhang, Makito Kobayashi (UTokyo), Takumi Nakashima, Kotaro Fujiwara, Michio Imai, Hideki Nagatani, Yasuyuki Miyajima, Junichi Kawabata (KAJIMA), Hideaki Murayama (UTokyo) OFT2023-17
When excavating large underground cavities such as tunnels and underground power stations, there is a risk of rockfall d... [more] OFT2023-17
pp.7-10
MIKA
(3rd)
2023-10-10
15:35
Okinawa Okinawa Jichikaikan
(Primary: On-site, Secondary: Online)
[Poster Presentation] Study of drone handover method considering multipath interference outdoors
Kakeru Hirata (NIT), Satoshi Ujigawa (KazimaTec), Takahiro Matsuda (TMU), Jiro Hirokawa (TT), Tetsurou Imai (TDU), Takefumi Hiraguri (NIT)
 [more]
CQ, MIKA
(Joint)
(2nd)
2023-08-30
15:00
Fukushima Tenjin-Misaki Sports Park [Poster Presentation] Study of drone handover method suitable for multi path phasing in three dimensional environment
Kakeru Hirata (NIT), Satoshi Ujigawa (Kajima Corporation), Takahiro Matsuda (TMU), Jiro Hirokawa (TT), Tetsurou Imai (TDU), Takefumi Hiraguri (NIT)
 [more]
CS 2023-07-27
11:24
Tokyo Hachijo-machi Chamber of Commerce and Industry Study on drone handover methods suitable for multipath interference due to obstacles
Kakeru Hirata (NIT), Satisi Uzigawa (Kajima Corporation), Takahiro Matsuda (TMU), Jiro Hirokawa (TT), Tetsurou Imai (TDU), Takefumi Hiraguri (NIT) CS2023-36
 [more] CS2023-36
pp.64-69
OFT 2022-10-13
09:30
Kanagawa Kanagawa-Kenmin Center
(Primary: On-site, Secondary: Online)
[Poster Presentation] Dynamic strain measurement by OFDR employing high-speed wavelength-swept laser
Ryota Ogu, Daiki Tanimura, Chao Zhang, Fumihiko Ito (Shimane Univ.), Yuichi Yoshimura, Hiroyuki Aoshika, Michio Imai (KAJIMA) OFT2022-23
We constructed an optical frequency domain reflectometry using a broadband, high-speed wavelength swept laser with a MEM... [more] OFT2022-23
pp.20-24
MIKA
(3rd)
2022-10-14
10:40
Niigata Niigata Citizens Plaza
(Primary: On-site, Secondary: Online)
[Poster Presentation] Evaluation of channel scanning schemes during handover considering communication quality
Kakeru Hirata, Isamu Shitara (NIT), Satoshi Ujigawa (Kajima Corporation), Takefumi Hiraguri (NIT)
 [more]
IA, CQ, MIKA
(Joint)
2022-09-15
16:25
Hokkaido Hokkaido Citizens Actives Center
(Primary: On-site, Secondary: Online)
Proposal of a Channel Scanning Scheme for Handover with Consideration of Communication Quality of Mobile Communication Stations
Kakeru Hirata, Isamu Shitara (NIT), Satoshi Ujigawa (Kajima Corporation), Takefumi Hiraguri (NIT) CQ2022-35
 [more] CQ2022-35
pp.62-66
CS 2022-07-14
13:10
Kagoshima Yakushima Environmental and Cultural Village Center
(Primary: On-site, Secondary: Online)
A proposal for channel scanning scheme for handover in the drone's network
Kakeru Hirata, Isamu Shitara (NIT), Satoshi Ujigawa (Kajima Corporation), Takefumi Hiraguri (NIT) CS2022-20
The construction of a network system to collect data and a system to extend the communication service area using drones ... [more] CS2022-20
pp.36-39
OFT 2022-01-20
14:20
Online Online Civil Infrastructure Monitoring by Cutting Edge of Optical Fiber Sensor -- High speed and high precision distributed optical fiber sensor --
Michio Imai, Junichi Kawabata, Yohei Taira, Hideki Nagatani (Kajima) OFT2021-58
The paper provides that the features of recent developed Rayleigh-based distributed optical fiber strain sensor, and the... [more] OFT2021-58
pp.17-20
KBSE, SC 2021-11-05
14:20
Online Online + Morioka City (KBSE)
(Primary: Online, Secondary: On-site)

Ikeda Hikaru, Nakagawa Hiroyuki, Sekimoto Fumi, Akagi Hiromasa, Tsuchiya Tatsuhiro () KBSE2021-26 SC2021-25
(To be available after the conference date) [more] KBSE2021-26 SC2021-25
pp.7-12
KBSE 2020-03-06
13:00
Okinawa Tenbusu-Naha
(Cancelled but technical report was issued)
KBSE2019-46 (To be available after the conference date) [more] KBSE2019-46
pp.1-6
RCS, NS
(Joint)
2010-07-15
11:10
Hokkaido Abashiri Public Auditorium Cross-Layer Multi-Hop Packet Transmission Scheme incorporating Route-Shortcut and Bypass Functions
Yasushi Yamao (Univ. of Electro-Comm.), Yutaro Kida (Tokyo Inst. of Tech.), Yusuke Kadowaki (Kajima Corp.) RCS2010-53
Multi-hop wireless ad hoc networks suffer from temporary link error due to fading. In order to improve packet transmissi... [more] RCS2010-53
pp.31-36
MW 2010-05-14
11:50
Hyogo University of Hyogo A Waveguide Power Divider Mechanical-Controlling Dividing Ratio With Low Insertion Loss
Minoru Sanagi, Munehiro Koji, Shigeji Nogi (Okayama UNiv.), Ken-ichi Hamamoto, Naoki Niwa, Kenji Takagi (Kajima Co.) MW2010-25
Loss reduction of a power divider mechanical-controlling dividing ratio has been investigated. The divider consists of a... [more] MW2010-25
pp.59-64
ED, LQE, CPM 2009-11-20
15:25
Tokushima Univ. of Tokushima (Josanjima Campus, Kogyo-Kaikan) Development of GaN Schottky Diodes for Microwave Wireless Ubiquitous Power Distribution
Kensuke Takahashi, Jin-Ping Ao (Tokushima Univ.), Naoki Shinohara (Kyoto Univ.), Naoki Niwa (Kajima Corp.), Teruo Fujiwara (Sho Engineering Corp.), Yasuo Ohno (Tokushima Univ.) ED2009-158 CPM2009-132 LQE2009-137
For microwave power rectification circuits(rectenna), high power, high conversion efficiency and compact size rectifying... [more] ED2009-158 CPM2009-132 LQE2009-137
pp.145-150
USN, IPSJ-UBI 2009-07-16
10:00
Kyoto ATR (Kyoto) Analyzing the Error Propagation of Time Synchronization in Wireless Sensor Networks
Makoto Suzuki, Sotaro Ohara, Shunsuke Saruwatari (Tokyo Univ.), Narito Kurata (Kajima), Masateru Minami, Hiroyuki Morikawa (Tokyo Univ.) USN2009-15
In this paper, we present an analysis on the error propagation of time synchronization in multi-hop wireless sensor netw... [more] USN2009-15
pp.19-24
MW 2009-05-28
10:30
Okayama Okayama Univ. A Waveguide Power Divider Mechanical-Controlling Dividing Ratio for Microwave Power Distribution System in Buildings
Minoru Sanagi, Munehiro Koji (Okayama Univ.), Hiroshi Hamashima (Okayama Univ./Mitsubishi), Shigeji Nogi (Okayama Univ.), Ken-ichi Hamamoto, Naoki Niwa, Kenji Takagi (Kajima Corp.), Naoki Shinohara, Tomohiko Mitani (Kyoto Univ.) MW2009-9
A power divider mechanical-controlling dividing ratio for the microwave power distribution system in buildings has been ... [more] MW2009-9
pp.1-6
USN, MoNA
(Joint)
2009-01-23
16:10
Aichi Nagoya Institute of Technology (Auditorium) High-Fidelity Synchronized Sampling on Wireless Sensor Networks for Earthquake Monitoring
Makoto Suzuki, Shunsuke Saruwatari (The University of Tokyo), Narito Kurata (Kajima Corp.), Masateru Minami, Hiroyuki Morikawa (The University of Tokyo) USN2008-91
This paper addresses the problem of sampling jitter on a wireless sensor network for earthquake monitoring. Since the ea... [more] USN2008-91
pp.167-172
USN, CQ, MoNA
(Joint)
2008-01-25
10:05
Shizuoka Kenshu Kouryu Center, Actcity Hamamatsu (Shizuoka) Implementation and Evaluation of Earthquake Monitoring System Using Wireless Sensor Networks
Makoto Suzuki (The University of Tokyo), Narito Kurata (Kajima Corp.), Shunsuke Saruwatari, Hiroyuki Morikawa (The University of Tokyo) USN2007-66
 [more] USN2007-66
pp.65-70
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