Mitsubishi Heavy Industries Limited

Ebara Corporation

Tsuyoshi Tomita

Takashi Enomoto

Hiroyuki Kato

Akemi Takano

Kiichi Sugimoto

Yosuke Fujitomi

Atsushi Kiya

Masashi Tagomori

Hidenori Takeda

With an image processing device, a presence/absence of a product defect is judged based on detected-image data obtained by a radiographic device that detects radiation that has passed through a product, which is an inspection subject. With the image processing device, a position of a product feature in the detected-image data is identified based on a shape of the product feature indicated by feature data stored in a storage portion in advance, defect candidates are extracted with reference to the identified product feature in the detected-image data, and the presence/absence of a product defect is judged based on characteristic quantities of product defects indicated by a defect characteristic stored in the storage portion in advance and characteristic quantities of the defect candidates.

Defect judging device, radiography system, and defect judging method

A vortex prevention apparatus is combined with a pump, and prevents an air entrained vortex or a submerged vortex from being produced when water in the pump pit is pumped up by a pump. A suction member is disposed in an open water channel and has a suction port. An auxiliary flow-path forming structure is disposed substantially concentrically around the suction member with a gap defined between the auxiliary flow-path forming structure and an outer circumferential surface of the suction member.

Vortex prevention apparatus in pump

Growing community of inventors

Tokyo, Japan

Tsuyoshi Tomita