Abstract: A battery polarity determination circuit includes a battery accommodating unit including a first contact and a second contact to be in contact with respective electrode terminals of a battery, a control device that is connected via a resistor to a voltage lead-out point at which a voltage of the battery is led out and determines a polarity of the battery, a connection switching circuit capable of switching between a first connection state and a second connection state, and a diode having a cathode to be connected to a voltage read-in point at which the resistor and the control device are connected to each other, and an anode to be grounded, wherein the control device determines the polarity of the battery based on a voltage at the voltage read-in point according to the connection state of the connection switching circuit, and a forward voltage of the diode is set so that the voltage at the voltage read-in point is not less than a lower limit value of an absolute maximum rating of the control device.

Abstract: A manufacturing line is managed based on apparatus information indicating states of apparatuses included in the manufacturing line for a target and a completed state of the target.

Abstract: An aid device is provided to an inspection device for judging whether a target object of inspection is normal or not normal based on results obtained by calculating a characteristic quantity of waveform data obtained from the target object of inspection. The aid device provides data for determining an effective characteristic quantity and effective parameters for calculating the effective characteristic quantity for the judging. Given waveform data are divided into frames and a frame profile with a matrix-form data structure is obtained for each frame. A plurality of such frame profiles for same waveform data are obtained, and a profile describing characteristic quantities related to these waveform data is obtained from them. A plurality of such profiles are stored in a memory for different waveform data. A histogram of values at specified common position in the memory is calculated and displayed.

Abstract: A method for preparing a heat exchanger, comprising forming a moisture-permeable film having an air-impermeable function on a single side of a plate-shaped porous member to provide a gas-impermeable member for heat exchange, bonding a spacer corrugated for forming a fluid passage to a side of the gas-impermeable member with the moisture-permeable film formed thereon to provide a plurality of heat exchanger constituent elements, and layering the heat exchanger constituent elements so that the spacer in each of the heat exchanger constituent elements forms a fluid passage in each layer.

Abstract: An electronic parts automatic mounting apparatus wherein a plurality of removing nozzles are disposed on a removing head portion, and a tipped electronic part held on the suitable removing nozzle is recognized by a recognizing means to correct a deviation in position thereof, whereby mounting accuracy of the part on a print substrate is enhanced and the recognition of the tipped electronic part held by the removing nozzle by the recognizing means can be positively carried out.

Abstract: A throttle body adapted to be mounted between an intake pipe and an intake manifold, the throttle body comprising an upstream body connected to the intake pipe and formed with a substantially horizontal suction passage; a downstream body connected to the intake manifold and formed with a downwardly inclined throttle bore, the throttle bore continuously extending from the suction passage on a downstream side thereof; a throttle valve rotatably mounted in the throttle bore of the downstream body; and a fuel injector mounted to the upstream body in such a manner as to inject fuel toward the throttle valve; wherein the fuel injected from the fuel injector collides with the throttle valve to be atomized and distributed in the downstream body, and is supplied to the intake manifold.