Kabushiki Kaisha Toshiba

Other

Yutaka Ishiwata

Kunihiko Wada

Yoshiyasu Itoh

Motofumi Tanaka

Hiroyuki Yasui

Naohiko Shimura

Masataka Tamura

Susumu Kinoshita

Toshio Shimizu

Kazuo Hayashi

Hisashi Matsuda

Hiroshi Komorita

Masahiro Asayama

Masahiro Katayama

Shinichi Noda

Sueyoshi Mizuno

Shohei Goshima

Hiroyuki Hiramoto

Tamon Ozaki

Yasuhiko Taniguchi

Kazuhiro Saito

Hiroshi Harada

Katsuya Yamashita

Shogo Iwai

Tsuneji Kameda

Takeo Suga

Asako Inomata

Yusuke Suzuki

Kouji Araki

Hiroshi Fukuyoshi

Kosoku Nagata

Toshiharu Kobayashi

Yutaka Koizumi

Toshiki Osako

Yomei Yoshioka

Takao Inukai

Shizuo Nakazawa

Toshimasa Yamada

Ryoichi Hamazaki

Takehisa Hino

Noriyuki Katagiri

Yuujiro Nakatani

Fumiyo Kuno

Toshiaki Fuse

There is provided a holding device which can hold a molten corium for a predetermined period even when the molten corium is exposed to heat or undergoes any chemical reaction and which is applicable to practical use. There is provided a holding device provided below a nuclear reactor pressure vessel for holding a molten corium, wherein the holding device includes a base material in contact with a cooling medium, and a multilayer stack structure on the base material. The multilayer stack structure has a first layer having heat-resistant property, a second layer formed on the first layer and having heat-resistant property with lower heat conductivity than that of the first layer, and a third layer formed on the second layer and having corrosion-resistant property and impact-absorbing property.

Holding device

A wind power generation systemof an embodiment includes a rotorhaving a huband blades, a nacellepivotally supporting the rotor, a towersupporting the nacelle, an airflow generation deviceprovided in a leading edge of each of the bladesand having a first electrodeand a second electrodewhich are separated via a dielectric, and a discharge power supplycapable of applying a voltage between the electrodes of the airflow generation device. Further, the system includes a measurement device detecting information related to at least one of output in the wind power generation system, torque in the rotorand a rotation speed of the blades, and a control unitcontrolling the discharge power supplybased on an output from the measurement device.

Wind power generation system and control method for the same

A wind power generation systemof an embodiment includes a rotorhaving blades, an airflow generation deviceprovided in a leading edge of each of the bladesand having a first electrodeand a second electrodewhich are separated via a dielectric, a discharge power supplyapplying a voltage between the electrodes of the airflow generation device, and a control unitcontrolling the discharge power supply. The control unitcontrols the voltage to perform pulse modulation so that the value of a relational expression fC/U is 0.1 or larger and 9 or smaller where f is a pulse modulation frequency of the voltage, C is a chord length of the blades, and U is a relative velocity combining a peripheral velocity of the bladesand a wind velocity, so as to generate plasma induced flow.

In one embodiment, an air current generating apparatus includes: a dielectric substrate exposed to gas: a first electrode disposed inside the dielectric substrate; a second electrode disposed near a surface of the dielectric so as to correspond the first electrode and having a sharp shape; and a power source applying a voltage between the first and second electrodes and plasmatizing part of the gas to generate an air current.

Air current generating apparatus and method for manufacturing same

In one embodiment, a steam device includes a high-temperature member and a low-temperature member. One surface of the high-temperature member is exposed to high-temperature steam, and the other surface is cooled by cooling steam having a temperature lower than the high-temperature steam. The low-temperature member is disposed to face the high-temperature member with a passage for the cooling steam therebetween and is formed of a material having a heat resistance lower than that of the high-temperature member. The steam device has at least one high-reflectance film selected from a first high-reflectance film, which is formed on the surface of the high-temperature member which is exposed to the high-temperature steam and has a higher reflectance with respect to infrared rays than the high-temperature member, and a second high-reflectance film, which is formed on the surface of the low-temperature member facing the high-temperature member and has a higher reflectance with respect to infrared rays than the low-temperature member.

Steam device

An insulating substrate () has insulative ceramic layers () laid one upon another, an intermediate layer () made of a material that is different from a material of the ceramic layers and arranged between adjacent ones of the ceramic layers to join the adjacent ceramic layers to each other, a first conductive layer () joined to the top surface of a top one of the ceramic layers, and a second conductive layer () joined to the bottom surface of a bottom one of the ceramic layers. Even if any one of the ceramic layers has strength lower than design strength and causes a breakage due to, for example, thermal stress, the remaining ceramic layers are sound to secure a specified breakdown voltage for the insulating substrate.

Insulating substrate, manufacturing method thereof, and module semiconductor device with insulating substrate

A nickel-base single-crystal superalloy, essentially consists of, in percentages by weight, 4.0% to 11.0% of cobalt, 3.5% to less than 5.0% of chromium, 0.5% to 3.0% of molybdenum, 7.0% to 10.0% of tungsten, 4.5% to 6.0% of aluminum, 0.1% to 2.0% of titanium, 5.0% to 8.0% of tantalum, 1.0% to 3.0% of rhenium, 0.01% to 0.5% of hafnium, 0.01% to 0.1% of silicon, and a balance being nickel and inevitable impurity, a total amount of rhenium and chromium being not less than 4.0% and a total amount of rhenium, molybdenum, tungsten and chromium being not more than 18.0%.

Nickel-base single-crystal superalloys, method of manufacturing same and gas turbine high temperature parts made thereof

An insulating substrate ( ) has insulative ceramic layers ( ) laid one upon another, an intermediate layer ( ) made of a material that is different from a material of the ceramic layers and arranged between adjacent ones of the ceramic layers to join the adjacent ceramic layers to each other, a first conductive layer ( ) joined to the top surface of a top one of the ceramic layers, and a second conductive layer ( ) joined to the bottom surface of a bottom one of the ceramic layers. Even if any one of the ceramic layers has strength lower than design strength and causes a breakage due to, for example, thermal stress, the remaining ceramic layers are sound to secure a specified breakdown voltage for the insulating substrate.

Insulating substrate including multilevel insulative ceramic layers joined with an intermediate layer

A hydrogen source and carbon dioxide are activated by irradiating a high energy beam onto the hydrogen source formed of hydrogen gas and/or a gaseous hydrogen compound, and onto exhaust gas containing carbon dioxide. The carbon dioxide contained in the exhaust gas is reduced by the activated hydrogen in order to transform the carbon dioxide into a solid or liquid compound and then recover it. It is preferable to dispose mesh materials for promoting the reduction reaction with the carbon dioxide in the exhaust gas in multiple layers within the reaction container. The size of the aperture of the mesh materials is set so as to gradually decrease in the direction of the flow of the mixed gas. It is also preferable to form the cross-sectional area of the reaction container so as to gradually decrease in the direction of the flow of the mixed gas. By the method for removing carbon dioxide, carbon dioxide contained in the exhaust gas can be removed at a high reaction speed without heating or pressurizing the exhaust gas. In addition, reaction products are industrially useful materials, and the exhaust gas can be recovered in the form of a readily recoverable liquid or solid material.

Apparatus and method for removing carbon dioxide contained in exhaust gas

A corrosion-resistant material for the construction of a member destined to contact molten metal comprises a matrix of a refractory metal and a powder of the oxide of at least one metallic element selected from the group consisting of the same metallic element as the molten metal and metallic elements having lower levels of free energy for the formation of an oxide than the molten metal, the powder of the oxide being dispersed and disposed in the matrix. The refractory metal is W, Mo, Ta, Nb, or Re. The metal oxide is selected from the rare earth metal oxides, namely the oxides of the same metallic elements as the molten metals, and the oxides of Ti, Cr, and Zr. The corrosion-resistant material is produced by a method which comprises mixing a refractory metal powder with a powder of the oxide of at least one metallic element selected from the group consisting of the same metallic element as the molten metal and metallic elements having lower levels of free energy for the formation of an oxide than the molten metal and sintering the resultant mixture under a vacuum or in the atmosphere of an inert gas or in a reducing atmosphere.

Corrosion-resistant material for contact with high temperature molten

A heat-resisting plate employed in various devices that handle high temperature plasma or high energy particles, including a metallic substrate having a cooling structure wherein cooling pipes are embedded against the substrate by a thermal spray layer of the same material as the metallic substrate on one or both faces of the metallic substrate. In forming the heat-resisting plate, the metallic substrate is processed to the form of a plate, cooling pipes are arranged on one or both faces of this metallic substrate, and the cooling pipes are fixed by spraying a thermal spray layer on the face or faces of the metallic substrate where the cooling pipes are arranged, thereby to embed the cooling pipes between the thermal spray layer and the metallic substrate.

Heat-resisting plate having a cooling structure and method of

This invention provides an electron beam irradiation device employing a material containing a Ti-A1 intermetallic composite as the material of an electron beam permeable window for allowing passage to the outside of a chamber of an electron beam generated in the chamber. Also, this invention provides a method of manufacturing an electron beam permeable window containing a Ti-A1 intermetallic composite by manufacturing a window-frame mounted titanium foil by fixing titanium foil between an outer window frame and an inner window frame of an electron beam permeable window, coating this with aluminium and titanium by converting aluminium and titanium to a metallic vapor state and subjecting this to thermal diffusion treatment.

Electron beam irradiation device and method of manufacturing an electron

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Zushi, Japan

Yutaka Ishiwata