Abstract: An image correction method according to an aspect of the present disclosure includes receiving an input of selecting one of a first method for correcting a shape of an image projected from a projector onto a projection surface and a second method that is a method for correcting the shape of the image and is different from the first method, outputting a signal for causing the projector to project a first pattern image when the first method is selected, generating first correction data for correcting the shape of the image using the first method based on a first captured image that is acquired by imaging the projection surface and includes the projection surface and a first projection image appearing on the projection surface by projecting the first pattern image, outputting a signal for causing the projector to project a second pattern image different from the first pattern image when the second method is selected, and generating second correction data for correcting the shape of the image using the second met

Abstract: When issuance of a passport is examined within each of the passport transaction apparatuses and the passport center, each of the passport transaction apparatuses orchestrates the passport center so as to determine whether the passport is to be issued or not using data for passport transaction inputted by the applicant. When issuance of the passport is permitted, an image of the applicant is acquired at each of the passport transaction apparatuses, and a passport with the image and contents of description for a passport is issued on the spot. Thus the process for passport transaction can be made faster and also a workload to an applicant can be reduced.

Abstract: A new effective bacterial infection-preventive agent for fish and shellfish larvae is provided. This agent contains a protease inhibitor such as ovomacroglobulin, .alpha. 2-macroglobulin or an analog thereof.

Abstract: Brake operating system for use in electrically driven vehicles having an electric brake and a pneumatic brake. Both the electric and pneumatic brakes are respectively operated by their respective operating apparatus different from and independent of each other when a brake pedal is depressed. The operating apparatus of the electric brake comprises a rheostat and a mechanism for mechanically operating the rheostat by depression of the brake pedal, while that of the pneumatic brake comprises a compressed air, pneumatic circuit divided into two lines independent of each other so as to respectively introduce the compressed air into two pairs of power clusters which are respectively connected to respective brakes for front and rear wheels, and a pair of brake valves respectively provided in the pneumatic circuit lines and simultaneously operated by depression of the brake pedal.

Abstract: A brake drum arrangement for use in a braking system wherein a wheel brake is disposed outside a tire, comprises a brake drum having inner end face thereof fixedly secured to the outer end face of a wheel hub, the outer peripheral surface of the brake drum being flush with that of the wheel hub, an annular rim stopper adapted to be mounted on the outer peripheral surface of the brake drum, and a plurality of wheel clamps adapted to be fixedly secured to the outer side face of the brake drum for retaining the rim stopper. The arrangement further comprises a plurality of spacers, each being disposed between the brake drum and each wheel clamp.

Abstract: A stopper device for a vessel of a dump truck comprises a wire rope connected to the rear end portion of the vessel and having a ring formed at the free end thereof. A retaining member projects from a rear axle tube and is adapted to be engageable with and disengageable from the ring, whereby the weight of the stopper is significantly reduced and the vessel can be easily held at a rearwardly tilted position when required.

Abstract: Metal ions are effectively eliminated from aqueous solutions containing the ame by treating the solution with a metal sequestering agent which is a condensation product of a higher alkyl halide with a polyamine.