Abstract: An image communication system capable of appropriately determining an encoding parameter is provided. In the image communication system according to one embodiment, based on a result of image recognition for a target frame, a region of interest in the target frame is determined. Single or plural reference frames input and stored after a target frame are referred to in chronological order, and the region of interest in the reference frame(s) is predicted. Based on the predicted region of interest predicted in the reference frame(s), the encoding parameter for a new input frame to be encoded is determined.

Abstract: A method for producing a hot-rolled steel sheet which enables predicting a temperature history of unevenness of the end face of a coil includes: measuring a surface temperature of hot-rolled strip-shaped steel; calculating a temperature history in a natural cooling state after coiling, assuming that the strip-shaped steel has been coiled without unevenness on an end face, based on the surface temperature measured in the measurement step; actually coiling the strip-shaped steel after the measurement step; scanning with a displacement meter, an end face of a coil formed in the coiling step, and deriving a size of the unevenness of the end face over a radius of the coil; and predicting a temperature history of the unevenness in a natural cooling state using: the temperature history calculated in the first calculation step; and the size of the unevenness derived in the derivation step.

Abstract: A compressor includes: a compressor body that suctions and compresses a gas to be compressed; heat exchangers that circulate a cooled target inside the heat exchangers to cool the cooled target; a fan that is driven by a fan motor and that sends a cooling gas to the heat exchangers to remove heat; a temperature sensor that detects an initial cooling gas temperature that is a temperature of the cooling gas not having been subject to heat removing for the heat exchangers; and a control unit that is capable of setting an upper limit frequency that is an upper limit for controlling a rotational frequency of the fan motor. The control unit sets the upper limit frequency to a rotational frequency equal to or lower than a frequency at which current at an acceptable current level is supplied to the fan motor, at each of the initial cooling gas temperatures detected by the temperature sensor.

Abstract: A planar light-emitting illumination device includes: a light-emitting unit (41) that includes: a mounting substrate (41b) on which a light-emitting semiconductor element (41a) is mounted; and an input terminal (61a) conductive to the light-emitting semiconductor element (41a); and a housing (45) that holds a plurality of the light-emitting units (41) and includes a plurality of output terminals (61b) through which power from an external power supply is supplied to the light-emitting units (41), where the light-emitting unit (41) and the housing (45) are removably fixed by a connection unit that connects the input terminal (61a) and the output terminal (61b).