Dai Nippon Printing Co., Ltd.

Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Thermal Systems, Ltd.

Mitsubishi Electric Corporation

Sumitomo Rubber Industries Limited

Central Glass Company, Limited

Mitsubishi Electric Research Laboratories, Inc.

Mitsubishi Denki Kabushiki Kaisha

Konica Minolta Opto, Inc.

Daicel Corporation

Dai Nippon Insatsu Kabushiki Kaisha

Canon Finetech Nisca Inc.

Dia Nippon Printing Co., Ltd.

Ricoh Company, Ltd.

Sony Group Corporation

Kenji Ueda

Hiroyuki Ohtaki

Akio Morii

Tsuyoshi Hotta

Shingo Nishikawa

Minoru Matsuo

Hiroyuki Otaki

Hiroyuki Nishimura

Naoki Kobayashi

Makio Kurashige

Yasushi Nakazato

Masachika Watanabe

Yukio Taniguchi

Satoru Takahashi

Mitsuru Kitamura

Yasuhito Inagaki

Yasushi Hasegawa

Atsushi Sekiguchi

Tetsuya Toshine

Satoru Hamada

Toshihiro Wada

Tsuyoshi Yamauchi

Minoru Azakami

Mikiko Hojo

Yoshinori Akamatsu

Yoshio Nishiguchi

Naoya Miyoshi

Masahiro Yamamoto

Atsushi Yamada

Fuyuhiko Sakyu

Shunsuke Sega

Koji Eto

Arvind Raghunathan

Osamu Hasegawa

Hiroshi Kajiyama

Masayuki Sakamoto

Satoru Okamoto

Masayuki Ueda

Tsuyoshi Kashiwagi

Yasushi Matsumura

Yoshikuni Ishikawa

Masaki Shiraishi

Yasushi Watanabe

Ryusuke Mase

Koki Tateishi

Takeyoshi Sekine

Satoshi Nikaido

Kiyoshi Oguchi

Yasuyuki Oyagi

Takahiro Ohe

Yasuhiro Sagawa

Hiroshi Nishida

Hideyuki Iriyama

Satoshi Shioda

Toshihiko Niinomi

Hiroyuki Watase

Takenori Oku

Yoshie Togano

Zenichi Yoshida

Noriyuki Matsukura

Akio Kishimoto

Kazuhiro Suga

Takehiko Anegawa

Shigehiko Tahara

Yoshinori Shirakata

Toshikazu Segawa

Tomoko Kumasawa

Hitoi Ono

Ryosuke Suemitsu

Kazuki Wajima

Shintaro Omura

Yuko Kuwabara

Akimasa Yokoyama

Koki Yoshimoto

Nobuhiko Ichikawa

Atsushi Takami

Masahiro Tatsuta

Tomihiro Takano

Takamichi Sagawa

Naoyuki Okamoto

Kazutoshi Awano

Akiko Kitamura

Toru Nishioka

Toyotaka Hirao

Masahiko Tanimoto

Takuya Osawa

Ryo Oba

Akihiro Kawada

Hiroo Kanamaru

Seiichi Okuda

Wataru Seki

Satoshi Hatanaka

Yoichiro Iritani

Masanobu Sakai

Hideo Nakata

Kanako Osafune

Yasuyuki Ohyagi

Toshiharu Ishikawa

Yusaku Nagasaki

Tomohisa Kuriyama

A cellulose ester composition having high fluidity, the cellulose ester composition containing a cellulose ester (A), an adipate-based compound (B), and a citrate-based compound (C). When a total of the component (A), the component (B), and the component (C) is 100 mass %, a content of the component (B) is from 7 to 20 mass %, a content of the component (C) is from 1 to 14 mass %, a total content of the component (B) and the component (C) is from 21 to 30 mass %, and the remainder is the component (A).

Cellulose ester composition

A railroad system includes a plurality of trains and an operation management device. The operation management device manages operation of a subject train that is at least one of the plurality of trains. The operation management device includes a calculation unit and a communication unit. The calculation unit calculates a target arrival time at which the subject train is to arrive at a next station, upon occurrence of an arrival delay of a preceding train at the next station, the preceding train being a train among the plurality of trains and running ahead of the subject train; and, upon arrival of the preceding train at the next station, calculates a target arrival time at which the subject train is to arrive at the next station. The communication unit transmits, to the subject train, information on the target arrival time calculated by the calculation unit.

Railroad system, operation management device, operation management method, and non-transitory storage medium to store operation management program

Provided are a turbo compressor and a centrifugal chiller comprising the same with which the length of a shaft in an axial direction can be shortened, rotational shake accompanying rotation of the shaft is suppressed, and a device can be made small. A turbo compressor comprising: a compressor part which compresses refrigerant; a shaft () which drives the compressor part around an axis of rotation X; a magnetic bearing (A) which has provided thereto an iron core part () comprising a plurality of teeth parts () formed at equiangular intervals around the axis of rotation X, and, a plurality of coils () respectively wound around the plurality of teeth parts (), and said magnetic bearing (A) allows the shaft () to pass through and supports said shaft () without contacting the same; an auxiliary bearing which allows the shaft () to pass through; and a displacement sensor () which detects displacement of the shaft (), wherein the displacement sensor () is provided between neighboring coils ().

Turbo compressor and centrifugal chiller comprising same

Provided is a tire provided with a mark capable of reducing the air resistance during tire rotation while maintaining good visibility. A tire is provided with a mark on a tire side portion. The mark includes a first mark located on an outer side in a tire radial direction, and a second mark located inward of the first mark in the tire radial direction. Each of the first mark and the second mark includes a recess that is recessed from a side profile surface of the tire side portion. A depth of the recess of the first mark from the side profile surface is smaller than a depth of the recess of the second mark from the side profile surface.

Tire

It is an object of the present invention to provide a heat pump that can use, as a refrigerant, a substance with which a geometric isomer exists, and a method for designing the same. The present invention is a method for designing a heat pump () whose closed circuit configured by connecting a compressor (), a condenser (), an expansion valve (), and an evaporator () in this order is filled with a refrigerant containing a refrigerant substance with which a geometric isomer may exist, the method including obtaining an upper limit of stable temperature at which isomerization of the refrigerant substance does not proceed, and setting an upper limit usage temperature of the heat pump () so as not to exceed the upper limit of the stable temperature.

Heat pump and method for designing the same

The present invention includes a hunting determination unit configured to determine whether hunting has occurred or not for each of control devices in a power transmission and distribution system based on a control history of the control devices, a time constant calculation unit configured to calculate an adjustment time constant in which a time constant of the control device having state information indicating a state of the control device, with a high significance level, is increased, when the hunting determination unit determines that the hunting has occurred in one or more of the control devices, and a time constant transmission unit configured to transmit the adjustment time constant to the control device.

System control device and method of system control

In order to reduce the effect on a compressor caused by foaming in an oil tank, a control unit for controlling an oil pump starts the oil pump before a compressor is started (SA), starts the compressor (SA) when an oil supply differential pressure P satisfies a compressor startup condition during a reference time Tas from the starting of the oil pump ('Yes' in SA), and extends the operation of the oil pump for a prescribed time without starting the compressor (Step SA) when the compressor startup condition is not satisfied ('No' in SA).

Turbo refrigerator and startup control method therefor

A DC feeder voltage computing device includes a model information storing unit, a run history information storing unit, and a voltage setting value computing unit. The model information storing unit stores model information. The run history information storing unit stores, on a per train basis, run history information that indicates locations and power situations of a plurality of trains that run in a DC-electrified section on or before a preceding day. The voltage setting value computing unit computes, on the basis of the model information and the run history information, a voltage setting value for controlling a substation voltage to cause an amount of power consumption in the DC-electrified section to satisfy a preset condition.

DC feeder voltage computing device, DC feeder voltage control system, and DC feeder voltage computation method

The purpose of the present invention is to provide: a turbo compressor which is provided with an open impeller and has the minimal gap between the shroud and the impeller such that efficiency is improved and the safe operating region is enlarged; and a turbo chiller using the same. The turbo compressor is provided with an open impeller with a shroud provided on the side of a casing, and the rotary shaft is supported by a radial magnetic bearing and a magnetic thrust bearing. The turbo compressor is provided with a control unit that comprises: a load calculating means that calculates the axial thrust load generated by the pressure distribution of the compressor; and an axial support position control means that controls a gap between the impeller and the shroud to be a target gap by varying, on the basis of the axial thrust load, the axial support position of the rotary shaft due to the magnetic thrust bearing.

Turbo compressor and turbo chiller using same

A DC-feeding-voltage calculating apparatus includes storage that stores train model information including information for controlling a regenerative power reducing amount in a train in an electrified section; feeding network model information including position information on a substation; and substation model information including control information on a substation voltage. On the basis of: the stored information; a voltage value, current values of feeders by train direction, the voltage and current values being measured in the substation; and first train information on a train including a wireless communication apparatus, an estimator estimates second train information on a train not including a wireless communication apparatus and outputs train operation information. A calculator, on the basis of the stored information and the train operation information, calculates a substation voltage setting value for controlling the substation voltage such that regenerative power is increased in a regenerative car in the electrified section.

DC-feeding-voltage calculating apparatus, DC-feeding-voltage control system, and DC-feeding-voltage calculating method

A liquefied gas cooling apparatus including: a gas flow path for carrying a liquefied gas that is liquefied by cooling; and a refrigeration unit including a refrigerating cycle formed by an evaporator for cooling the liquefied gas flowing through the gas flow path, a compressor, a condenser, and a throttle expansion unit. The compressor is driven through an electric motor contained in a sealed housing together with a compressor mechanism.

Liquefied gas cooling apparatus

A pneumatic tire manufacturing method is provided in which winding collapse is prevented, there is no possibility of adverse effects on the FV, a current-carrying layer can be formed easily, and down-stitching can be dispensed with or minimized in the manufacture of SOT-structure pneumatic tires having a base-pen structure in the tread. This pneumatic tire manufacturing method involves: a step in which a sidewall, an inner liner, and a ply are bonded on a first molding drum, beads are set, and the tread side part that will form the current-carrying layer is formed on the side wall, forming a first cover; a step in which a breaker and band are bonded on a second molding drum and the tread center part is formed on the band, shaping the tread ring; a step in which the first cover is inserted inside of the tread ring and inflated to bond to the tread ring with pressure; and a step in which the sidewall is bonded to the lateral surface of the first cover, and the tread side part and the tread center part are bonded together.

Pneumatic tire manufacturing method, and pneumatic tire

A machine quantity controlling device which controls a quantity of a heat source device to operate in a heat source system including a first heat source device and a second heat source device, the first heat source device being a waste heat recovery type absorption chiller, the second heat source device other than a waste heat recovery type absorption chiller, the machine quantity controlling device including an acquisition unit that obtains a waste heat utilization maximum load which is a maximum load when the first heat source device receives only supply of the waste heat; a determination unit that determines a predetermined load range from the waste heat utilization maximum load to be a first optimal load range as an optimal load range of the first heat source device; and a machine quantity control unit that controls a quantity of the second heat source device to operate so that the sum of a total of minimum values of the optimal load range of the first heat source device to operate and a total of minimum values of a second optimal load range of the second heat source device to operate is smaller than or equal to a load required for the heat source system, and the sum of a total of maximum values of a first optimal load range and a total of maximum values of the second optimal load range is equal to or greater than the load required for the heat source system, the second optimal load range being an optimal load range of the second heat source device to operate.

Machine quantity controlling device, energy supplying system, machine quantity controlling method, and program

The purpose of the present invention is to achieve stable operation when using a low pressure, low GWP refrigerant. In the present invention, a control device () is provided with an estimation unit (), a determination unit (), and an activation control unit (). The estimation unit () estimates the amount of air entering using a degree of influence of air entering, which represents the ease with which air enters determined by the structure of the chiller, and a variable obtained by a function including pressure as a parameter. The determination unit () determines whether a total value for the amount of air entering is greater than or equal to a preset tolerance value. The activation control unit () activates a bleed device when the total value of the amount of air entering is equal to or greater than the tolerance value.

Control device and control method for bleed device

A tireincludes: a pair of beadsincluding cores; chafers, disposed near the beads, which are brought into contact with a rim; an inner linerdisposed inward of a carcassin an axial direction; and an insulationdisposed between the carcassand the inner linerin the axial direction. The chafersinclude bottom surfacesthat are brought into contact with the rim in portions inward of the coresin a radial direction. The insulationincludes insulation lower portionsdisposed between the coresand the bottom surfacesof the chafersin the radial direction. The inner linerincludes inner liner lower portionsdisposed between the coresand the bottom surfacesof the chafersin the radial direction.

Pneumatic tire

Growing community of inventors

Tokyo, Japan

Kenji Ueda