Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Kiyotaka Seki"'
Publikováno v:
BUTSURI-TANSA(Geophysical Exploration). 73:218-224
Autor:
Kiyotaka Seki, Kunihiro Kawasaki
Publikováno v:
Quarterly Report of RTRI. 56:33-38
Various radio communication systems are used in railway systems such as Communications Based Train Control (CBTC) systems, passenger information service systems, wireless sensor networks, etc. Designing or evaluating work to build radio communication
Autor:
Shingo Nakagawa, Fumio Teraoka, Daisuke Tatsui, Hiroshi Matsubara, Kazuki Nakamura, Shinichiro Haruyama, Kiyotaka Seki
Publikováno v:
Electrical Engineering in Japan. 190:45-56
SUMMARY We developed a high-speed telecommunication system for use on railways to improve customer service and the efficiency of operator's telecommunications between ground facilities and trains under operation. We built a mobile telecommunication s
Publikováno v:
Journal of Differential Equations. 256:2993-3010
This paper deals with the quasilinear fully parabolic Keller–Segel system { u t = ∇ ⋅ ( D ( u ) ∇ u ) − ∇ ⋅ ( S ( u ) ∇ v ) , x ∈ Ω , t > 0 , v t = Δ v − v + u , x ∈ Ω , t > 0 , under homogeneous Neumann boundary conditions i
Autor:
Kazuki Nakamura, Shingo Nakagawa, Daisuke Tatsui, Kiyotaka Seki, Shinichiro Haruyama, Fumio Teraoka, Hiroshi Matsubara
Publikováno v:
IEEJ Transactions on Electronics, Information and Systems. 132:666-674
Publikováno v:
Quarterly Report of RTRI. 47:83-88
As tentative mobile networks can be easily constructed using ad-hoc network technology, hopes are high for its application across a range of fields. In this paper, we show the results of basic studies for its application in railway operational system
Publikováno v:
Quarterly Report of RTRI. 43:187-191
This report examines the elements needed for high bit rate data transmission such as used in Digital Subscriber Line (xDSL) transmissions along existing metallic cables. Old carrier systems used frequency division multiplex and time division multiple
Autor:
Kiyotaka Seki, Shoko Suzuki
Publikováno v:
Quarterly Report of RTRI. 42:184-189
This paper describes a trial of a system where mobile agents built with Java-based tools work in combination with wireless computing and communications devices to permit railway sales staff to collect information about customers' travel needs from an
Publikováno v:
Quarterly Report of RTRI. 42:180-183
CyberRail is an enhanced railway system which we are proposing for the realization of integrated, intermodal passenger transport in which different modes of transportation will be cooperating with each other. In this paper, we discuss the basic conce
Publikováno v:
2007 9th International Conference on Transparent Optical Networks.
We propose a ground-to-train communication system using free-space optics between a train and the ground. In this paper, we evaluate BER characteristic in outdoor experiment using test train. The experimental results lead to the conclusion that the p