International Business Machines Corporation

Nec Corporation

Kabushiki Kaisha Toshiba

Hitachi Solutions, Ltd.

Toshiba Energy Systems & Solutions Corporation

Other

Toshiba Plant Systems & Services Corporation

Asahi Glass Company, Limited

Sony Computer Entertainment Inc.

Sumitomo Metal Industries, Inc.

Ishikawajima-harima Jukogyo Kabushiki Kaisha

Yahoo Japan Corporation

International Superconductivity Technology Center

Railway Technical Research Institute

Kyushu Electric Power Co., Inc.

Yuichi Nakamura

Kohichi Kamijoh

Hironori Takeuchi

Futoshi Iwama

Hitomi Takahashi

Yoichi Hatsutori

Gaku Yamamoto

Teruo Izumi

Toshiro Takase

Fumiko Satoh

Seiji Hamada

Tsutomu Shioyama

Yoshiaki Mima

Toshihiko Endo

Hideo Ando

Michiaki Tatsubori

Yuh Shiohara

Makoto Takahashi

Hisashi Miyashita

Shinichi Hirose

Nirmal K Mukhi

Satoshi Makino

Tsutomu Ooishi

Daisuke Asakura

Tetsuya Yamanaka

Koji Kanbe

Nobuyuki Ohama

Hisashi Goto

Kent Tamura

Hiroyuki Tao

Michio Kikuchi

Takuhiro Tsunekawa

Shinya Nobuoka

Tomoo Ohfuji

Hiroki Shiraishi

Shoji Tanaka

Takaaki Tateishi

Toshihiro Takahashi

Jun Deguchi

Takeshi Araki

Francisco Phelan Curbera

Hideaki Majima

Izumi Hirabayashi

Kazuo Yamashita

Kazuya Ohmatsu

Yutaka Yamada

Kohei Hosokawa

Kouichi Ono

Hitoshi Ebihara

Toshiyuki Yamagishi

Makoto Harigae

Manabu Kusumoto

Shinichiro Yasui

Yasuhiro Iijima

Yasuji Yamada

Takahiro Kumura

Masahiro Ohkawa

Takashi Iseki

David Andrew Booz

Hiroshi Fuji

Minoru Tagami

Hisao Kawasato

Kazuya Tago

Kanshi Ohtsu

Nau Ozaki

Tomoo Oofuji

Koso Fujino

Akira Moriguchi

Kengo Ishige

Kazuomi Kakimoto

So Ishika

Ryo Neyama

Natsuro Hobara

Tetsuji Honjo

Hiroyuki Nishi

Kaoru Takeda

Masashi Kusano

Hiroyuki Miya

Koichi Nagaishi

Hiroryuki Nishi

Masanori Irie

Atsuhiko Tani

A steam turbine valve abnormality monitoring system according to an embodiment includes a detection unit detecting the state of a steam turbine valve or a steam turbine valve drive device, a determination unit, and an abnormality processing unit. Based on the detected result of the detection unit, the determination unit determines whether or not an abnormality has occurred in the opening degree control of the steam turbine valve. The abnormality processing unit issues an alarm or issues a turbine stop command when the determination unit determines that an abnormality has occurred in the opening degree control of the steam turbine valve.

Steam turbine valve abnormality monitoring system, steam turbine valve drive device, steam turbine valve device, and steam turbine plant

A technique for processing a target program is disclosed. In the technique, execution of a target program handling a data structure object is initiated. In the technique, a synthetic data structure object is created by using a mixed data object instead of handling the data structure object in a manner instructed originally in the target program. The mixed data object includes a first data object and a second data object and is configured to redirect a method call to the second data object in response to the first data object being unable to handle the method call.

Synthetic data creation for dynamic program analysis

A method for emergency communication includes encoding a message for visual display including a message to field and a message from field. The visual display is revealed to a reading device in communication with a broadcast center, which stores the visual display. The messages are decoded and sorted from visual displays at the broadcast center. On an index channel, a time and channel number for when a message body of the message will be broadcast on a message channel is broadcasted. The message body is broadcasted on the message channel.

Peer-to-peer emergency communication using public broadcasting

A steam turbine valve drive apparatus in an embodiment includes a piston, a cylinder, a bidirectional pump, a servo motor, and a quick closing mechanism. The cylinder houses the piston in an inner space thereof, the inner space being partitioned by the piston into a first hydraulic chamber and a second hydraulic chamber. The quick closing mechanism executes a quick closing operation of closing the steam valve unit more quickly than the closing operation. Here, the quick closing mechanism executes the quick closing operation by feeding the working oil accumulated in an accumulator to the second hydraulic chamber and draining the working oil from the first hydraulic chamber.

Steam turbine valve drive apparatus

A steam valveof an embodiment includes: a valve elementof a steam control valve, the valve elementbeing provided to be movable in an up and down direction; a valve elementof a main stop valve, the valve elementbeing provided under the valve elementcoaxially with the valve elementto be movable in the up and down direction; a valve seatwith which the valve elementand the valve elementcome into and out of contact; and a guide tubeslidably supporting a valve rodincluding the valve element, and having a flange portionat a bottom side in a casing. The steam valvefurther includes: the casinghousing the valve element, the valve element, the valve seat, and the guide tube; a drain discharge holeformed at a bottom side of the casing; a drain pipeprovided with a shutoff valveand communicating with the drain discharge hole; and a flow direction changing partwhich changes a direction in which steam having passed between the valve elementand the valve seatand flowing along the guide tubeflows toward the drain discharge hole

Steam valve

A steam turbine pipeof an embodiment includes: an upper half side main steam pipethat leads steam to a steam turbine; an upper half side main steam control valvethat intervenes in the upper half side main steam pipe; and a post-valve drain pipethat is connected to the upper half side main steam control valveand leads drain to an outside. The steam turbine pipefurther includes: a shut-off valvethat intervenes in the post-valve drain pipe; and a branching pipethat makes the post-valve drain pipeon the side closer to the upper half side main steam control valvethan is the shut-off valvecommunicate with the upper half side main steam pipebetween the upper half side main steam control valveand a high-pressure turbine

Steam turbine pipe and pipe

An apparatus, method and the like which enables to represent a pipe network transporting a fluid by use of electrical circuit network is provided. The pipe network analysis apparatus includes; processing circuitry configured to receive a pipe network model that represents a pipe network being constituted by one or more piping elements, convert at least one piping element to an element of an electric circuit being configured to represent a non-linear relation between a pressure and a flow rate of the fluid in the piping elements by use of a relation between a voltage and a current, and generate a model representing an electric circuit network expressing the pipe network, by use of the element of the electric circuit; and an output device configured to provide the model analyzable by a specific electric circuit simulator.

Pipe network analysis apparatus, pipe network analysis method, and storage medium

A detailed information providing server includes: an acquisition unit configured to acquire search log information in which a search query is associated with link destination information of a search result obtained by a search using the search query; and a storage unit configured to determine whether or not a keyword corresponding to the search query is included in a news article available on the Internet, and store detailed information in association with the news article into an associated information DB when determining that the keyword is included, the detailed information being acquired by making access according to the link destination information associated with the search query.

Information providing system, information providing server and information providing method for automatically providing search result information

The data acquisition unit acquires sensor data according to an acquisition rule stored in the acquisition and processing rule DB. Then the data acquisition unit determines a representative value for each predetermined time interval on acquired data according to the buffer setting information stored in the buffer setting information DB and saves at least a predetermined number of representative values in the buffer provided in the main memory. The processing unit processes the predetermined number of representative values saved in the buffer to determine the processed data according to a processing rule stored in the acquisition and processing rule DB. The data upload unit transmits to the M2M server the processed data determined by the processing unit.

Gateway device and sensor data collection system

A frequency offset compensation apparatus includes: first FFT means for performing a discrete-time Fourier transform of an input signal; second FFT means for performing a discrete-time Fourier transform; and offset compensation means for changing an order of output data of the first FFT means according to a frequency offset compensation amount, and rearranging the output data, and then inputting the output data to the second FFT means. This makes possible a frequency offset compensation without needing a new complex multiplier or a new memory in optical communication.

Frequency offset compensation apparatus and frequency offset compensation method

Growing community of inventors

Tokyo, Japan

Yuichi Nakamura