Abstract: An information processing apparatus performs electromagnetic field analysis over a plurality of stages. The information processing apparatus includes a hardware processor connected to a memory. The hardware processor sequentially selects an analysis target and determines one or more analysis regions in the analysis target. The one or more analysis regions are determined on the basis of a parameter relative to mutual influence between structures included in the analysis target. The hardware processor performs electromagnetic field analysis on the one or more analysis regions. The structures include a first structure and a second structure. At least one of the one or more analysis regions includes an entirety of the first structure and part of the second structure.

Abstract: A silicon carbide-natured refractory block includes a fire-resistant block body, and a calcination coated layer. The fire-resistant block body includes a silicon carbide-natured refractory having a predetermined configuration. The calcination coated layer includes silicon oxide made by heating an outer superficial portion of the fire-resistant block body to oxidize at least some of silicon carbide therein to turn the silicon carbide into the silicon oxide. The silicon oxide sinters the calcination coated layer to increase the corrosion resistance.

Abstract: A fired precast block prevents itself from dropping off early due to corrosion and increases service life of a blast furnace runner, etc. when used in a very vulnerable portion of the blast furnace runner, etc., and can be produced at low costs. The fired precast block has an upper surface to contact molten metal or slag, a lower surface opposing the upper surface, and a plurality of side surface. The fired precast block is used by being embedded in a castable in such a manner that the upper surface is exposed from the castable and the lower surface and the plurality of side surfaces contact the castable. Each side surface of at least one opposing pair of side surfaces includes a planar portion and an uneven portion. The uneven portion has at least one groove-shaped concave portion.

Abstract: An attachment structure of a lid body of a battery container includes a container main body, a lid body made of a metal, an anticorrosive covering material to be applied to the lid body, a container edge section to be provided along an outer circumference of a storage section of the container main body, a lid body edge section to be provided along an outer circumference of the lid body, an engaging tools configured to engage the lid body with the container main body with a predetermined gap, a fixing section configured to fix the lid body to the container main body.

Abstract: A fired precast block prevents itself from dropping off early due to corrosion and increases service life of a blast furnace runner, etc. when used in a very vulnerable portion of the blast furnace runner, etc., and can be produced at low costs. The fired precast block has an upper surface to contact molten metal or slag, a lower surface opposing the upper surface, and a plurality of side surface. The fired precast block is used by being embedded in a castable in such a manner that the upper surface is exposed from the castable and the lower surface and the plurality of side surfaces contact the castable. Each side surface of at least one opposing pair of side surfaces includes a planar portion and an uneven portion. The uneven portion has at least one groove-shaped concave portion.

Abstract: A battery pack includes: a battery; a battery case including: a battery tray which contains the battery; and a battery cover which is mounted on the battery tray; a cooling unit provided in an end part of the battery case in a first direction that is a longitudinal direction of the battery case, and supplying a cooling air into the battery case; an air flow passage provided above the battery and extending along the first direction, in a center part in a second direction perpendicular to the first direction inside the battery case, one end of the air flow passage connected to the cooling unit; and an electric cable arranged between the air flow passage and the battery cover, along the first direction, and supplying an electric power of the battery to a motor.

Abstract: A silicon carbide-natured refractory block includes a fire-resistant block body, and a calcination coated layer. The fire-resistant block body includes a silicon carbide-natured refractory having a predetermined configuration. The calcination coated layer includes silicon oxide made by heating an outer superficial portion of the fire-resistant block body to oxidize at least some of silicon carbide therein to turn the silicon carbide into the silicon oxide. The silicon oxide sinters the calcination coated layer to increase the corrosion resistance.

Abstract: A battery pack includes battery modules. The battery modules are arranged adjacent to each other in a vehicle anteroposterior direction in such a manner that a longitudinal direction of each battery module corresponds to a vehicle width direction. Bus bars for electrically connecting in series positive and negative electrode terminals of the adjacent battery modules include outer bus bars in an outer part in the vehicle width direction, and inner bus bars in a center part in the vehicle width direction. The outer bus bars are provided so as not to protrude from upper faces of the battery modules thereby to interconnect the electrode terminals of the adjacent battery modules, and the inner bus bars are provided so as to pass above the upper faces of the battery modules thereby to interconnect the electrode terminals of the adjacent battery modules.

Abstract: A battery pack tray includes: a tray body including: a bottom which has a concave-convex portion that includes convex and concave portions which extend in a first direction; and a wall which is upward bent from a periphery of the bottom; reinforcement frames provided along opposed wall portions of the wall in a second direction perpendicular to the first direction; a cross member disposed on an upper surface of the concave-convex portion, and forming a first closed cross-section with the concave-convex portion, both end portions of the cross member being secured to the reinforcement frames; an inner cross member secured to an upper surface of the cross member, both end portions of the inner cross member being secured to the reinforcement frames; and attachment brackets secured to the reinforcement frames.

Abstract: A battery pack includes: a battery; a battery case including: a battery tray which contains the battery; and a battery cover which is mounted on the battery tray; a cooling unit provided in an end part of the battery case in a first direction that is a longitudinal direction of the battery case, and supplying a cooling air into the battery case; an air flow passage provided above the battery and extending along the first direction, in a center part in a second direction perpendicular to the first direction inside the battery case, one end of the air flow passage connected to the cooling unit; and an electric cable arranged between the air flow passage and the battery cover, along the first direction, and supplying an electric power of the battery to a motor.

Abstract: A battery pack includes battery modules. The battery modules are arranged adjacent to each other in a vehicle anteroposterior direction in such a manner that a longitudinal direction of each battery module corresponds to a vehicle width direction. Bus bars for electrically connecting in series positive and negative electrode terminals of the adjacent battery modules include outer bus bars in an outer part in the vehicle width direction, and inner bus bars in a center part in the vehicle width direction. The outer bus bars are provided so as not to protrude from upper faces of the battery modules thereby to interconnect the electrode terminals of the adjacent battery modules, and the inner bus bars are provided so as to pass above the upper faces of the battery modules thereby to interconnect the electrode terminals of the adjacent battery modules.

Abstract: A battery pack tray includes: a tray body including: a bottom which has a concave-convex portion that includes convex and concave portions which extend in a first direction; and a wall which is upward bent from a periphery of the bottom; reinforcement frames provided along opposed wall portions of the wall in a second direction perpendicular to the first direction; a cross member disposed on an upper surface of the concave-convex portion, and forming a first closed cross-section with the concave-convex portion, both end portions of the cross member being secured to the reinforcement frames; an inner cross member secured to an upper surface of the cross member, both end portions of the inner cross member being secured to the reinforcement frames; and attachment brackets secured to the reinforcement frames.

Abstract: It is an object to provide an antenna unit capable of operating in response to a plurality of types of counterpart equipment that operate at different resonance frequencies while enhancing its passing characteristic, as well as providing a portable wireless device equipped with the antenna unit. An antenna unit that performs wireless communication originating from induction coupling includes a loop antenna coiled by a conductor in a planar shape; and a metallic plate that is positioned while displaced from the loop antenna in one direction and that partially encloses a circumference of the loop antenna when viewed from the direction, wherein each of ends of the metallic plate overlaps a portion of the loop antenna when viewed from the direction.

Abstract: An OFDM modulator having a peak factor reduction function. The OFDM modulator has a peak factor reduction unit between an IFFT unit and a guard interval insertion unit thereof. The peak factor reduction unit converts a complex signal X1 outputted from the IFFT unit into a complex signal X2 with a reduced peak factor based on subcarrier map information. The peak factor reduction unit generates a peak factor reduction signal by a linear combination of complex exponential functions that correspond to subcarrier frequencies to be used for wave transmission, as bases. The peak factor reduction signal is derived by repetition of, for example, a weighted least squares method or convolution processing by a fast Fourier transform.

Abstract: An OFDM modulator having a peak factor reduction function. The OFDM modulator has a peak factor reduction unit between an IFFT unit and a guard interval insertion unit thereof. The peak factor reduction unit converts a complex signal X1 outputted from the IFFT unit into a complex signal X2 with a reduced peak factor based on subcarrier map information. The peak factor reduction unit generates a peak factor reduction signal by a linear combination of complex exponential functions that correspond to subcarrier frequencies to be used for wave transmission, as bases. The peak factor reduction signal is derived by repetition of, for example, a weighted least squares method or convolution processing by a fast Fourier transform.

Abstract: Traffic that can be processed at a cell station is increased without reducing communication quality. When a channel is allocated to every time slot constituting a communication frame and radio control section receives a link channel establishment request from a personal station through a control channel allocated to any of the time slots, a control section notifies the personal station through the traffic channel of an allocation message indicating that the time slot allocated to the control channel will be allocated to a traffic channel. The transmission of the control channel is stopped when a predetermined time (a control channel transmission/reception duration) passes after the notification of the allocation message.

Abstract: In a mobile communication system including a plurality of base stations 10 and an MS position administrating station 30 connected to each of the base stations via a communication network, at least one of the base stations detects an arrival angle of a position detection signal from a mobile station and an average received power or propagation distance, and transmits the detected values as position detection parameters to the MS position administrating station, and the MS position administrating station detects the position of the mobile station on the basis of the position detection parameters and map information of an area including the base station.