Abstract: An electronic device inspection apparatus of the present application comprises an inspection table for positioning and holding an electrode disposed on a semiconductor device , a contact element that is formed of a shape memory alloy in a long and thin plate shape and has a base part fixed to the inspection table and a variable part formed in a shape of a spiral at a first temperature and being developed from the spiral at a second temperature; and a measurement circuitry for measuring the semiconductor device by conducting a current to flow into the electrode via the contact element. The axis of the spiral of the variable part is parallel to the electrode face of the positioned electrode and a contact region is formed along a longitudinal direction between the variable part and the positioned electrode at the second temperature.

Abstract: The present invention provides a method for imparting unique identifiers that do not overlap each other to individual position spaces in the case of latitude and longitude information or even in the case of height information also included in addition thereto. A longitude line passing through the coordinate origin is divided by the length of one side of a unit grid, and a latitude value inside unit grids is calculated. An accumulated error is calculated in a case where latitude values inside the unit grids are accumulated for one round in a longitude line direction of a celestial body, and an error per unit grid is calculated based on the calculated accumulated error. The number of unit grids included in one block in the longitude line direction is specified so that a reference error per block is equal to or smaller than one thousandth of the accumulated error, and thus a reference latitude is set.

Abstract: Provided are a path selection assistance device, a path selection assistance method, and a computer program, for displaying, in a recognizable manner, paths that a user can select from a current position to a destination to enable the user to select a path, by which the user can reliably reach the destination, according to the user's values. Information indicating the paths that the user can select is displayed. Position information on the current position of the user and the current position(s) of one or more targets is acquired and position information on a block which is a closed region surrounded by paths that the user can travel is acquired. Blocks existing between the current position of the user and the current position(s) of one or more targets are extracted and the display mode of the blocks thus extracted is updated to display them.

Abstract: Provided are a path selection assistance device, a path selection assistance method, and a computer program, for displaying, in a recognizable manner, paths that a user can select from a current position to a destination to enable the user to select a path, by which the user can reliably reach the destination, according to the user's values. Information indicating the paths that the user can select is displayed. Position information on the current position of the user and the current position(s) of one or more targets is acquired and position information on a block which is a closed region surrounded by paths that the user can travel is acquired. Blocks existing between the current position of the user and the current position(s) of one or more targets are extracted and the display mode of the blocks thus extracted is updated to display them.

Abstract: An object of the present invention is to provide a myocardial progenitor cell that is specifically induced to differentiate into a cardiomyocyte, and a method for preparing the myocardial progenitor cell. A method for preparing a CD82-positive cell includes, in sequence, a step (a) of obtaining stem cells, a step (b) of subjecting the stem cells to induction treatment of differentiation into cardiovascular cells, and a step (c) of separating, from the stem cells having been subjected to the induction treatment of differentiation in the step (b), a CD82-positive cell being negative for at least one cell surface marker selected from CD73, CD44, CD105, CD121a, CD18, and CD120a. This method enables preparation of a CD82-positive cell for use as a myocardial progenitor cell.

Abstract: An object of the present invention is to provide a myocardial progenitor cell that is specifically induced to differentiate into a cardiomyocyte, and a method for preparing the myocardial progenitor cell. A method for preparing a CD82-positive cell includes, in sequence, a step (a) of obtaining stem cells, a step (b) of subjecting the stem cells to induction treatment of differentiation into cardiovascular cells, and a step (c) of separating, from the stem cells having been subjected to the induction treatment of differentiation in the step (b), a CD82-positive cell being negative for at least one cell surface marker selected from CD73, CD44, CD105, CD121a, CD18, and CD120a. This method enables preparation of a CD82-positive cell for use as a myocardial progenitor cell.

Abstract: Disclosed is a piston (16) that is capable of not only suppressing the occurrence of knocking but also reducing cooling loss in an internal combustion engine in which a tumble flow is formed in a cylinder. The piston for the internal combustion engine in which the tumble flow is formed in the cylinder includes a non-adiabatic region (50) that is a region on a piston upper surface (35) brought into contact with the tumble flow during an intake stroke and has no insulating layer. The piston also includes an adiabatic region (52) that is a region on at least a part of the piston upper surface excluding the non-adiabatic region and has an insulating layer.

Abstract: A six-blade biaxial rotary positive-displacement pump includes a casing formed with a suction port and a discharge port, a pair of rotors accommodated in the casing and having rotor shafts rotatably mounted on housings fixed to opposed ends of the casing, respectively. Each rotor is formed with six blades extending radially equiangularly about the rotor shaft. Each blade is formed so as to have a constant thickness in a rotational direction of each rotor. Each blade has an apex and a valley, and a distance between the apex and the valley is set so as to range from three to five times larger than the thickness of each blade.

Abstract: Disclosed is a piston (16) that is capable of not only suppressing the occurrence of knocking but also reducing cooling loss in an internal combustion engine in which a tumble flow is formed in a cylinder. The piston for the internal combustion engine in which the tumble flow is formed in the cylinder includes a non-adiabatic region (50) that is a region on a piston upper surface (35) brought into contact with the tumble flow during an intake stroke and has no insulating layer. The piston also includes an adiabatic region (52) that is a region on at least a part of the piston upper surface excluding the non-adiabatic region and has an insulating layer.

Abstract: A microscopic bubble generating apparatus includes a Roots-type pump including a pair of multi-lobed Roots rotors housed in a pump casing, and a drive motor rotating the rotors, a suction pipe connected to a suction port of the pump casing, a discharge pipe connected to a discharge port of the pump casing, and a conduit communicating with the suction pipe and having an air inlet and a collision member with which sucked water is caused to collide. The pump is operated to suck water through the suction pipe and to cause the water mixed with air sucked through the air inlet to collide with the collision member so that a number of bubbles are generated. The bubbles are refined by a compressing action of the pump to be rendered microscopic. The water containing the microscopic bubbles is released from the discharge pipe into water in a septic tank or river.

Abstract: A six-blade biaxial rotary positive-displacement pump includes a casing formed with a suction port and a discharge port, a pair of rotors accommodated in the casing and having rotor shafts rotatably mounted on housings fixed to opposed ends of the casing, respectively. Each rotor is formed with six blades extending radially equiangularly about the rotor shaft. Each blade is formed so as to have a constant thickness in a rotational direction of each rotor. Each blade has an apex and a valley, and a distance between the apex and the valley is set so as to range from three to five times larger than the thickness of each blade.

Abstract: A microscopic bubble generating apparatus includes a Roots-type pump including a pair of multi-lobed Roots rotors housed in a pump casing, and a drive motor rotating the rotors, a suction pipe connected to a suction port of the pump casing, a discharge pipe connected to a discharge port of the pump casing, and a conduit communicating with the suction pipe and having an air inlet and a collision member with which sucked water is caused to collide. The pump is operated to suck water through the suction pipe and to cause the water mixed with air sucked through the air inlet to collide with the collision member so that a number of bubbles are generated. The bubbles are refined by a compressing action of the pump to be rendered microscopic. The water containing the microscopic bubbles is released from the discharge pipe into water in a septic tank or river.

Abstract: A dust collector includes a collection unit including a suction pipe and a Roots blower outwardly discharging the air having passed through the collection unit. The collection unit further includes a rotational shaft rotatably mounted in a housing of the case and disposed so as to face an interior of the case, a rotary filter mounted on the shaft and including a cylindrical porous core and a filter material attached to an outer circumference of the core and having a number of folds made of nonwoven cloth with a mesh into a continuous zigzag shape, an air blower nozzle blowing on an outer surface of the rotary filter pressure air produced by drive of the blower in a reverse direction thereby to clean the filter, and a recovery bag accommodating the dust or the like removed from the rotary filer during cleaning by the air blower nozzle.