Search Results - "Nakanishi, Hideya"

A TCP/IP-based constant-bit-rate file transfer protocol and its extension to multipoint data delivery by Yamanaka, Kenjiro, Urushidani, Shigeo, Nakanishi, Hideya, Yamamoto, Takashi, Nagayama, Yoshio

“…We present a new TCP/IP-based file transfer protocol which enables high-speed daisy-chain transfer. By using this protocol, we can send a file to a series of…”
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Real-Time Data Streaming and Storing Structure for the LHD's Fusion Plasma Experiments by Nakanishi, Hideya, Ohsuna, Masaki, Kojima, Mamoru, Imazu, Setsuo, Nonomura, Miki, Emoto, Masahiko, Yoshida, Masanobu, Iwata, Chie, Ida, Katsumi

“…The LHD data acquisition and archiving system, i.e., LABCOM system, has been fully equipped with high-speed real-time acquisition, streaming, and storage…”
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Radiation control in LHD and radiation shielding capability of the torus hall during first campaign of deuterium experiment by Kobayashi, Makoto, Saze, Takuya, Miyake, Hitoshi, Ogawa, Kunihiro, Isobe, Mitsutaka, Tanaka, Masahiro, Akata, Naofumi, Nishimura, Kiyohiko, Hayashi, Hiroshi, Kobuchi, Takashi, Yokota, Mitsuhiro, Osuna, Masaki, Nakanishi, Hideya, Osakabe, Masaki, Takeiri, Yasuhiko

“…The activities carried out to obtain public consent for deuterium experiments in LHD, which began in 2017, are reviewed in this paper. In addition, the…”
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Revised cloud storage structure for light-weight data archiving in LHD by Nakanishi, Hideya, Masaki, Ohsuna, Mamoru, Kojima, Setsuo, Imazu, Miki, Nonomura, Masahiko, Emoto, Takashi, Yamamoto, Yoshio, Nagayama, Takahisa, Ozeki, Noriyoshi, Nakajima, Katsumi, Ida, Osamu, Kaneko

“…•GlusterFS is adopted to replace IznaStor cloud storage in LHD.•GlusterFS and OpenStack/Swift are compared.•SSD-based GlusterFS distributed replicated volume…”
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Parallel Indexing Scheme for Data Intensive Applications by Funaki, Kenta, Hochin, Teruhisa, Nomiya, Hiroki, Nakanishi, Hideya, Kojima, Mamoru

“…This paper proposes a parallel indexing scheme of a large amount of data in order to resolve the issues about time limitation. Three kinds of computing-nodes…”
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Adaptive data migration scheme with facilitator database and multi-tier distributed storage in LHD by Nakanishi, Hideya, Masaki, Ohsuna, Mamoru, Kojima, Setsuo, Imazu, Miki, Nonomura, Kenji, Watanabe, Masayoshi, Moriya, Yoshio, Nagayama, Kazuo, Kawahata

“…Recent “data explosion” induces the demand for high flexibility of storage extension and data migration. The data amount of LHD plasma diagnostics has grown…”
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Portability improvement of LABCOM data acquisition system for the next-generation fusion experiments by Nakanishi, Hideya, Ohsuna, Masaki, Kojima, Mamoru, Imazu, Setsuo, Nonomura, Miki, Nagayama, Yoshio, Kawahata, Kazuo

“…The LABCOM data acquisition system (DAQ) has set a new world record of acquired data amount of 90 GB/shot in 2005–2006 campaign. Its CompactPCI-based new DAQ…”
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Prediction of unusual plasma discharge by using Support Vector Machine by Nakagawa, Shota, Hochin, Teruhisa, Nomiya, Hiroki, Nakanishi, Hideya, Shoji, Mamoru

“…•It is shown that unusual visible light emission inside the plasma vessel can be predicted by using Support Vector Machine (SVM), a machine learning…”
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Similarity Retrieval of Plasma Videos and Its Evaluation by Shiroshita, Hideki, Hochin, Teruhisa, Nomiya, Hiroki, Nakanishi, Hideya

“…Dissimilarity computed from frequency information obtained by applying three-dimensional Fourier transformation to a plasma video has been proposed. This paper…”
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High-performance data transfer for full data replication between iter and the remote experimentation centre by Yamanaka, Kenjiro, Nakanishi, Hideya, Ozeki, Takahisa, Nakajima, Noriyoshi, Farthing, Jonathan, Manduchi, Gabriele, Robin, Francois, Abe, Shunji, Urushidani, Shigeo

“…A high-performance data transfer method has been developed for the Remote Experimentation Centre (REC) of ITER in Japan for the first time. The developed…”
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Design for the distributed data locator service for multi-site data repositories by Nakanishi, H., Yamanaka, K., Tokunaga, S., Ozeki, T., Homma, Y., Ohtsu, H., Ishii, Y., Nakajima, N., Yamamoto, T., Emoto, M., Ohsuna, M., Ito, T., Imazu, S., Nonomura, M., Yoshida, M., Ogawa, H., Maeno, H., Aoyagi, M., Yokota, M., Inoue, T., Nakamura, O., Abe, S., Urushidani, S.

“…•Distributed data location informing service considered for multi-site data repository.•Multi-master bi-directional asynchronous replication method between…”
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Long distance fast data transfer experiments for the ITER Remote Experiment by Yamanaka, Kenjiro, Nakanishi, Hideya, Ozeki, Takahisa, Abe, Shunji, Urushidani, Shigeo, Yamamoto, Takashi, Ohtsu, Hideo, Nakajima, Noriyoshi

“…•This paper presents fast data transfer experiments using packet pacing and mmcftp and results.•An upgrade plan of Japanese Academic Network SINET is also…”
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Inter-application communication during LHD consecutive short pulse discharge experiment by Emoto, Masahiko, Nakanishi, Hideya, Yoshida, Masanobu, Ohsuna, Masaki, Ogawa, Hideki, Imazu, Setsuo, Maeno, Hiroya, Ito, Tatsuki, Yokota, Mitsuhiro, Nonomura, Miki, Aoyagi, Miwa

“…LHD short pulse experiments are executed every three minutes. After the end of the discharge, the scientists must collect, analyze, visualize the last acquired…”
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Particle simulation of relativistic charged beams using integral Kernel method by NAKANISHI, H, MATSUI, J, UCHIMOTO, T, ISEI, N, WATANABE, M, YOSHIDA, Z, OGAWA, Y, INOUE, N

“…A three-dimensional particle simulation scheme has been developed and applied to the study of relativistic charged particle beams. To simulate the nonlinear…”
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Indexing of plasma waveforms for accelerating search and retrieval of their subsequences by Hochin, Teruhisa, Yamauchi, Yoshihiro, Nakanishi, Hideya, Kojima, Mamoru, Nomiya, Hiroki

“…This paper proposes an indexing method of plasma waveforms for accelerating search and retrieval of their subsequences. The proposed method divides a waveform…”
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Remote device control and monitor system for the LHD deuterium experiments by Nakanishi, Hideya, Ohsuna, Masaki, Ito, Tatsuki, Nonomura, Miki, Imazu, Setsuo, Emoto, Masahiko, Iwata, Chie, Yoshida, Masanobu, Yokota, Mitsuhiro, Maeno, Hiroya, Aoyagi, Miwa, Ogawa, Hideki, Nakamura, Osamu, Morita, Yoshitaka, Inoue, Tomoyuki, Watanabe, Kiyomasa, Ida, Katsumi, Ishiguro, Seiji, Kaneko, Osamu

“…•Device remote control will be significant for the LHD deuterium experiments.•A central management GUI to control the power distribution for devices.•For…”
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Integrated radiation monitoring and interlock system for the LHD deuterium experiments by Nakanishi, H., Yokota, M., Aoyagi, M., Ohsuna, M., Ito, T., Imazu, S., Nonomura, M., Ogawa, K., Isobe, M., Akata, N., Tanaka, M., Saze, T., Nishimura, K., Hayashi, H., Miyake, H., Ogawa, H., Maeno, H., Emoto, M., Yoshida, M., Kawamura, T., Sakakibara, S., Ishiguro, S., Osakabe, M.

“…The Large Helical Device (LHD) successfully started the deuterium experiment in March 2017, in which further plasma performance improvement is envisaged to…”
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Extension of frequency-based dissimilarity for retrieving similar plasma waveforms by Hochin, Teruhisa, Koyama, Katsumasa, Nakanishi, Hideya, Kojima, Mamoru

“…Some computer-aided assistance in finding the waveforms similar to a waveform has become indispensable for accelerating data analysis in the plasma…”
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Generation of Plasma Discharge Video from a Single Frame by Using Conditional GAN by Ngan, Tran Vo Khanh, Hochin, Teruhisa, Nomiya, Hiroki, Nakanishi, Hideya, Shoji, Mamoru

“…At the National Institute for Fusion Science, high-temperature plasma is generated in the Large Helical Device (LHD). Numerous videos capturing plasma…”
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Prediction of Plasma Discharge Video by Convolutional Long Short-Term Memory by Ngan, Tran Vo Khanh, Hochin, Teruhisa, Nomiya, Hiroki, Nakanishi, Hideya, Shoji, Mamoru

“…In the National Institute for Fusion Science, high-temperature plasmas have been produced in the Large Helical Device (LHD). A large number of videos having…”
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