Abstract: In forming an actuator, a large end surface of a tapered roller of a tapered roller bearing is shot with minute particles of silicon carbide having a diameter of 0.5 to 100 ?m and having an angle formed by crushing, and such a surface is scraped concavely at a diameter within a range from 0.5 to 100 ?m to form a large number of concavities having a depth of equal to or greater than 1 ?m at a pitch of equal to or less than 200 ?m. The concavities are non-continuous and isolated from each other, and serve as a lubricant puddle. The concavities are formed by scraping and not by plastic deformation, and thus the surface is not hardened.

Abstract: A boiler is provided with: a boiler body in which the water level inside water pipes when combustion by a burner is stopped is lower than the upper ends of the water pipes; water supply means; control means which controls the water supply means depending on the water level in the boiler body; header water level detection means which detects a water level existing inside an upper header; and a downcast pipe. The control means performs first control for controlling the water supply means so as to lower a boiler body water level when the water level detected by the header water level detection means reaches a header set water level and second control for controlling the water supply means so as to raise the boiler body water level when the amount of drop in the boiler body water level reaches a predetermined amount after the first control.

Abstract: A radio base station (BS2) comprises: a transmitter (1412) that transmits, via a plurality of transmission antennas, a radio signal to a first radio terminal having a plurality of reception antennas; a transmission directivity controller (1422) that controls directional beam, which is formed by the transmission antennas, on the basis of feedback information that is fed back from the first radio terminal; and an information acquiring unit (1421) that acquires control information to be used for directing the null points of the directional beam toward a second radio terminal that receives, as an interference signal, the foregoing radio signal during communication with another radio base station. The transmission directivity controller (1422) directs, based on the feedback information and control information, the directional beam toward the first radio terminal and the foregoing null points toward the second radio terminal.

Abstract: A radio communication system comprises a control device that controls a radio station, which uses a plurality of first transmission antennas to transmit a first radio signal, for which a channel A is used, to a radio terminal, and a radio station, which uses a plurality of second transmission antennas to transmit a second radio signal, for which the channel A is used, to a radio terminal. The radio terminal, if having received the second radio signal, transmits, to the radio station, interference information based on the arrival direction from which the second radio signal comes to the radio terminal. Based on the interference information received by the radio base station, the control device transmits, to the radio station, control information to be used for directing, in the arrival direction, the null point of a directional beam formed by the second transmission antennas.

Abstract: An A/D conversion circuit may include: a delay circuit that includes a plurality of delay units having a first pulse input terminal, a pulse output terminal, and an analog signal input terminal, wherein each first pulse input terminal of the plurality of delay units is connected to one of the pulse output terminals corresponding to the plurality of delay units, and a pulse output signal input to the first pulse input terminal is delayed in accordance with an analog signal input to the analog signal input terminal and output from the pulse output terminal, and one of the plurality of delay units has a second pulse input terminal to which a pulse signal is input from outside; a state variation detection circuit; and an encoding signal latch circuit.

Abstract: The boiler is provided with: a boiler body in which the water level inside water pipes when combustion is stopped is lower than the upper ends of the water pipes; external water level detection means which communicates with upper and lower headers and detects a boiler body external water level; control means which controls the water supply means so as to lower the water level inside the boiler body when the water level detected by the external water level detection means reaches a first set water level; and header water level detection means which detects a water level existing inside the upper header by boiler water being pushed up by air bubbles. The control means controls the water supply means so as to lower the water level inside the boiler body when the water level detected by the header water level detection means reaches a second set water level.

Abstract: A method for manufacturing a single-crystal 4H-SiC substrate includes: preparing a flat 4H-SiC bulk single-crystal substrate; and epitaxially growing a first single-crystal 4H-SiC layer having recesses on the 4H-SiC bulk single-crystal substrate, wherein the first single-crystal 4H-SiC layer has a thickness of X (?m), the recesses have a diameter Y (?m) no smaller than 0.2*X (?m) and no larger than 2*X (?m), and a depth of Z (nm) no smaller than (0.95*X (?m) +0.5 (nm)) and no larger than 10*X (?m).

Abstract: A rotation support device for a pinion shaft is configured such that, together with being able to sufficiently maintain axial rigidity of a rolling bearing on the side opposite from the pinion gear side, it is able to sufficiently reduce the dynamic torque during operation and the starting torque at the start of operation. Together with using a single-row angular contact ball bearing as the rolling bearing on the side opposite from the pinion gear side, the ratio of the radius of curvature Ro of the outer raceway and the diameter Bd of the balls (Ro/Bd) is regulated within the range 0.52<Ro/Bd?0.56, and the contact angle ? is regulated within the range of 35° to 40°.

Abstract: A base station apparatus includes a wireless receiving unit wirelessly receiving identification information on a terminal apparatus located in the vicinity of the base station apparatus; a storage unit storing the identification information received by the wireless receiving unit; a request receiving unit receiving, from a communication apparatus, a start request containing identification information regarding a terminal apparatus to be started; a determination unit determining whether the identification information contained in the start request received by the request receiving unit having been stored in the storage unit; and a distribution unit wirelessly distributing a start instruction to start the terminal apparatus indicated by the identification information upon the determination unit determining the identification information having been stored in the storage unit.

Abstract: A ball bearing includes an inner ring having a raceway surface, an outer ring having a raceway surface, a plurality of rolling elements rollably disposed between the raceway surface of the inner ring and the raceway surfaces of the outer ring, and a resin cage configured to retain the plurality of rolling elements between the inner ring and the outer ring. The cage is a crown type cage having an annular base portion and a plurality of pockets formed in an axial end face of the annular base portion, in which the pockets retain the rolling elements. An axial distance between an axial position of a center of gravity of the cage and a curvature center of a spherical or cylindrical inner surface of each of the pockets is 0.6 or more times a radius of curvature of the inner surface. A hybrid vehicle transmission has this ball bearing.

Abstract: A magnetic single-component developer includes a spherical toner containing at least a magnetic powder and not containing a release agent in a binder resin, and a nonspherical toner containing at least a magnetic powder and a release agent in a binder resin. According to measurements taken from a scanning electron microscope image taken from 100 toner particles in the magnetic single-component developer, the spherical toner has a circularity of 0.980 or more, the nonspherical toner has a circularity of 0.960 or less, and a particle number ratio (A)/(B) of the number (A) of particles of the spherical toner to the number (B) of particles of the nonspherical toner is 3/7 or more and 5/5 or less.

Abstract: A radio base station 100 judges a receiving state of a radio signal in conformity with the orthogonal frequency division multiplexing scheme, and changes a symbol string configuration of a symbol string defined by a size in a frequency axis direction and in a time axis direction, on the basis of the judged receiving state.

Abstract: A magnetic toner for electrostatic latent image development includes toner particles containing toner core particle containing at least a binder resin and a magnetic powder, and a shell layer coating the toner core particle. In the toner, in the case where the surfaces of the shell layers are observed using a scanning electron microscope, the magnetic powder is not observed, and approximately spherical particles derived from the resin fine particles are not observed on the surfaces of the shell layers for toner particles having a particle diameter in a specific range. In the toner, in the case where the cross-sectional surfaces of the toner particles are observed using a transmission electron microscope, cracks approximately perpendicular to surfaces of the toner core particles are observed inside the shell layers.

Abstract: A toner for electrostatic latent image development, containing toner particles composed of toner core particle containing at least a binder resin and a shell layer coating the toner core particle. Average circularities D4 to D7 of toner particles within predetermined particle diameter ranges are each no less than 0.960, the difference (Dmax?Dmin) between a maximum value Dmax among D4 to D7 and a minimum value Dmin among D4 to D7 is no greater than 0.015. The shell layer is smoothened to a predetermined level. And, cracks in a direction approximately perpendicular to a surface of the toner core particles are observable inside the shell layer when cross-section of the toner particle is observed using a transmission electron microscope.

Abstract: A toner for electrostatic latent image development is comprised toner particles containing toner core particle containing at least a binder resin and a shell layer coating the toner core particle. The shell layer is smoothened to a predetermined level. And, when cross-sections of the toner particles are observed using a transmission electron microscope, cracks approximately perpendicular to surfaces of the toner core particles are observable inside the shell layer.

Abstract: A toner for electrostatic latent image development is comprised toner particles containing toner core particle containing at least a binder resin and a shell layer coating the toner core particle. The shell layer is smoothened to a predetermined level. The average particle diameter of the resin fine particles is from 45 nm to 300 nm. And, when cross-sections of the toner particles are observed using a transmission electron microscope, cracks approximately perpendicular to surfaces of the toner core particles are observable inside the shell layer.

Abstract: A toner for magnetic single-component development, which contains at least a binder resin which is a polyester resin, magnetic powder, and a charge control resin, wherein the ratio (%) of the area of the charge control resin present on the surface of the toner particles with respect to the area of the toner particles on an electron microscope image is made to be in a predetermined range corresponding to the particle diameter of the toner particles.

Abstract: A ball bearing includes an inner ring having a raceway surface, an outer ring having a raceway surface, a plurality of rolling elements rollably disposed between the raceway surface of the inner ring and the raceway surfaces of the outer ring, and a resin cage configured to retain the plurality of rolling elements between the inner ring and the outer ring. The cage is a crown type cage having an annular base portion and a plurality of pockets formed in an axial end face of the annular base portion, in which the pockets retain the rolling elements. An axial distance between an axial position of a center of gravity of the cage and a curvature center of a spherical or cylindrical inner surface of each of the pockets is 0.6 or more times a radius of curvature of the inner surface. A hybrid vehicle transmission has this ball bearing.

Abstract: An A/D conversion circuit and a solid-state imaging device are able to reduce current consumption, and two input terminals of a NAND element included in a latch circuit receive a corresponding one of a plurality of clock signals and an enable signal. The enable signal is not input to the NAND element before an end timing of A/D conversion, and is input to the NAND element at the end timing of the A/D conversion and at a timing at which latching is performed. The latch circuit latches no clock signal when the enable signal is not input.

Abstract: A magnetic single-component developer includes a spherical toner containing at least a magnetic powder and not containing a release agent in a binder resin, and a nonspherical toner containing at least a magnetic powder and a release agent in a binder resin. According to measurements taken from a scanning electron microscope image taken from 100 toner particles in the magnetic single-component developer, the spherical toner has a circularity of 0.980 or more, the nonspherical toner has a circularity of 0.960 or less, and a particle number ratio (A)/(B) of the number (A) of particles of the spherical toner to the number (B) of particles of the nonspherical toner is 3/7 or more and 5/5 or less.