Kenji Ishii

24 papers A 1B 1C 1Journal 13Unranked 8
YearRankTypeTitle / Venue / Authors
2024 — conf
High-Speed Multilevel Coded Modulation and Soft Performance Monitoring in Optical Communications.
OFC
Tsuyoshi Yoshida, Isamu Kudo, Kenji Ishii, Hideo Yoshida, Hidenori Shimizu, Susumu Hirano, Yoshiaki Konishi, Magnus Karlsson, Erik Agrell
2020 J jnl
Relationship between the temporal course of astrogliosis and symptom improvement in cerebral infarction: report of a case monitored using
BMC Medical Imaging
Kenji Ishibashi, Yoshiharu Miura, Kosei Hirata, Jun Toyohara, Kenji Ishii
2017 — conf
Significance of Adaptive Co-operation of Modulation Format and FEC for Energy Saving in Optical Networks.
ECOC
Soichiro Kametani, Kazuo Kubo, Kenji Ishii, Keisuke Dohi, Takashi Sugihara
2015 — conf
A study on power-scaling of triple-concatenated FEC for optical transport networks.
ECOC
Kenji Ishii, Keisuke Dohi, Kazuo Kubo, Kenya Sugihara, Yoshikuni Miyata, Takashi Sugihara
2015 — conf
Demonstration of no-guard-band coherent IFDMA/OFDMA/SC-FDMA-PON co-existence uplink system using real-time IFDMA transmitter.
OFC
Kenji Ishii, Yuki Yoshida, Kiyoshi Onohara, Masaki Noda, Masamichi Nogami, Akihiro Maruta, Ken-ichi Kitayama
2014 — conf
3×ONU no-guard-band coherent OFDMA-PON uplink over 40km SMF link using real-time IFDMA transmitter with free-running 100kHz linewidth source.
ECOC
Yuki Yoshida, Akihiro Maruta, Kenji Ishii, Kiyoshi Onohara, Yuji Akiyama, Masaki Noda, Masamichi Nogami, Kazuumi Koguchi, Takashi Mizuochi, Ken-ichi Kitayama
2014 — conf
Demonstration of 3-ONU multiplexed coherent IFDMAPON uplink system using real-time prototypes.
OFC
Kenji Ishii, Yuki Yoshida, Kiyoshi Onohara, Masaki Noda, Masamichi Nogami, Akihiro Maruta, Takashi Mizuochi, Ken-ichi Kitayama
2013 — conf
Elastic and green optical access based upon coherent interleaved frequency division multiple access (IFDMA).
OFC/NFOEC
Ken-ichi Kitayama, Yuki Yoshida, Akihiro Maruta, Kenji Ishii, Yuji Akiyama, Masaki Noda, Kazuumi Koguchi, Masamichi Nogami, Kiyoshi Onohara, Takashi Mizuochi
2013 J jnl
Implementation of Power-Efficient ONU for Elastic-Bandwidth IFDMA-PON Uplink by Employing Polar-Coordinate Transformed PSK Mapping [Invited].
JOCN
Kenji Ishii, Kiyoshi Onohara, Yuji Akiyama, Masaki Noda, Masamichi Nogami, Kazuumi Koguchi, Yuki Yoshida, Akihiro Maruta, Takashi Mizuochi, Ken-ichi Kitayama
2012 — conf
Recent progress of high-speed burst-mode transceiver technologies for TDM-PON systems.
WOCC
Satoshi Yoshima, Masaki Noda, Eitetsu Igawa, Satoshi Shirai, Kenji Ishii, Masamichi Nogami, Junichi Nakagawa
2011 J jnl
Gray matter density increase in the primary sensorimotor cortex in long-term essential blepharospasm.
NeuroImage
Yukihisa Suzuki, Motohiro Kiyosawa, Masato Wakakura, Manabu Mochizuki, Kenji Ishii
2008 J jnl
Robust estimation of the arterial input function for Logan plots using an intersectional searching algorithm and clustering in positron emission tomography for neuroreceptor imaging.
NeuroImage
Mika Naganawa, Yuichi Kimura, Junichi Yano, Masahiro Mishina, Masao Yanagisawa, Kenji Ishii, Keiichi Oda, Kiichi Ishiwata
2007 J jnl
Mapping of human cerebral sigma
NeuroImage
Muneyuki Sakata, Yuichi Kimura, Mika Naganawa, Keiichi Oda, Kenji Ishii, Kunihiro Chihara, Kiichi Ishiwata
2007 J jnl
Neural correlates of regional EEG power change.
NeuroImage
N. Oishi, Tatsuya Mima, Kenji Ishii, Khalaf Bushara, T. Hiraoka, Y. Ueki, Hidenao Fukuyama, Mark Hallett
2007 J jnl
Temporal and spatial blood information estimation using Bayesian ICA in dynamic cerebral positron emission tomography.
Digit. Signal Process.
Mika Naganawa, Yuichi Kimura, Kenji Ishii, Keiichi Oda, Kiichi Ishiwata
2006 J jnl
MAP-based kinetic analysis for voxel-by-voxel compartment model estimation: Detailed imaging of the cerebral glucose metabolism using FDG.
NeuroImage
Yuichi Kimura, Mika Naganawa, Jun Yamaguchi, Yuki Takabayashi, Akihiko Uchiyama, Keiichi Oda, Kenji Ishii, Kiichi Ishiwata
2005 J jnl
Extraction of a plasma time-activity curve from dynamic brain PET images based on independent component analysis.
IEEE Trans. Biomed. Eng.
Mika Naganawa, Yuichi Kimura, Kenji Ishii, Keiichi Oda, Kiichi Ishiwata, Ayumu Matani
2005 J jnl
Omission of serial arterial blood sampling in neuroreceptor imaging with independent component analysis.
NeuroImage
Mika Naganawa, Yuichi Kimura, Tadashi Nariai, Kenji Ishii, Keiichi Oda, Yoshitsugu Manabe, Kunihiro Chihara, Kiichi Ishiwata
2003 J jnl
Increased regional cerebral blood flow but normal distribution of GABA
NeuroImage
Masahiro Mishina, Michio Senda, Motohiro Kiyosawa, Kiichi Ishiwata, Anne G. De Volder, Hideki Nakano, Hinako Toyama, Keiichi Oda, Yuichi Kimura, Kenji Ishii, Touru Sasaki, Masashi Ohyama, Yuichi Komaba, Shirou Kobayashi, Shin Kitamura, Yasuo Katayama
2002 J jnl
Neuroimaging Reveals Automatic Speech Coding during Perception of Written Word Meaning.
NeuroImage
Ben Xu, Jordan Henry Grafman, William D. Gaillard, Marianna Spanaki, Kenji Ishii, Lyn M. Balsamo, Milan Makale, William H. Theodore
2000 A conf
Brain regions responsible for word retrieval, speech production and deficient word fluency in elderly people: a PET activation study.
INTERSPEECH
Itaru F. Tatsumi, Michio Senda, Kenji Ishii, Masahiro Mishina, Masashi Oyama, Hinako Toyama, Keiichi Oda, Masayuki Tanaka, Yasuyuki Gondo
1997 C conf
A New Processor Architecture for Digital Signal Transport Systems.
ICCD
Minoru Inamori, Kenji Ishii, Akihiro Tsutsui, Kazuhiro Shirakawa, Hiroshi Nakada, Toshiaki Miyazaki
1997 J jnl
Mapping Visual Field with Positron Emission Tomography by Mathematical Modeling of the Retinotopic Organization in the Calcarine Cortex.
IEEE Trans. Medical Imaging
S. Endo, Hinako Toyama, Yuichi Kimura, Kenji Ishii, Michio Senda, Motohiro Kiyosawa, A. Uchryama
1996 B conf
FACT: Co-evaluation Environment for FPGA Architecture and CAD System.
FPL
Toshiaki Miyazaki, Akihiro Tsutsui, Kenji Ishii, Naohisa Ohta