National Institute of Advanced Industrial Science and Technology

Jfe Steel Corporation

Ishikawajima-harima Jukogyo Kabushiki Kaisha

Funai Electric Advanced Applied Technology Research Institute Inc.

Ishikawajima-harima Kukogto Kabushiki Kaisha

Hidekazu Abe

Tetsuo Shimizu

Yasuhisa Naitoh

Masayo Horikawa

Masatoshi Ono

Shigeo Furuta

Tsuyoshi Takahashi

Takehide Hirata

Naoshi Yamahira

Yoshifumi Nitta

Kazuro Tsuda

Wataru Mizutani

Takashi Kawata

Masao Seki

Hideo Sato

Akira Omori

An abnormality detection method of detecting abnormality of a blast furnace from tuyere images shot by cameras installed in vicinities of a plurality of tuyeres of the blast furnace includes: collecting, in a time-series manner, representative brightness vectors defined by representative brightnesses determined based on brightness values of respective pixels for each of the tuyeres image previously shot by the cameras at a same time; extracting a principal component vector by performing principal component analysis on the representative brightness vectors collected in the time-series manner; calculating, as an evaluation value, a length of a normal line drawn in a direction of the principal component vector from the representative brightness vector collected from the tuyere images shot by the cameras at the same time during an operation; and detecting the abnormality of the blast furnace by comparing the evaluation value with a predetermined threshold.

Abnormality detection method and blast furnace operation method

A switching elementincludes an insulating substrate, a first electrodeprovided on the insulating substrate, a second electrodeprovided on the insulating substrate, and an interelectrode gapprovided between the first electrodeand the second electrode, a distance G between the first electrodeand the second electrodebeing 0 nm&#x3c;G&#x2266;50 nm.

Switching element relying on nanogap electrodes

A non-volatile memory devicecontains: an insulating substrate; a first electrodeprovided on the insulating substrate; a second electrodeprovided on the insulating substrate; and a gapset between the first electrodeand the second electrode, in which a distance G between the first electrodeand the second electrodeis: 0 nm&#x3c;G&#x2266;50 nm.

Nonvolatile memory device with nano gap electrode

A multi-stage particle separator provides a scroll and cylinder configuration in which the scroll establishes a swirling chamber and a first stage of separation and the cylinder establishes a continuing and second stage of separation.

Particle separator

Process and apparatus for calcining finely divided cement raw materials including finely divided combustible materials in a suspension preheater with a calcining furnace. Finely divided calcareous materials are directly charged into the suspension preheater while finely divided argillaceous materials, including combustibles such as oil shale, are charged into a bypass duct for bypassing part of the high temperature gases in the suspension preheater to a calcining zone or calcining furnace. The raw materials charged into the bypass duct are subjected to thermal decomposition, resulting in solids and combustible gases. The combustible gases are separated from the solids and are charged into the calcining zone or calcining furnace while the separated solids are charged into the suspension preheater, mixed with the finely divided calcareous materials, preheated and calcined. Since the finely divided argillaceous materials are mixed with the finely divided calcareous materials, the smooth flow of the cement raw materials in the suspension preheater is ensured.

Process and apparatus for calcining finely divided cement raw materials

Growing community of inventors

Tokyo, Japan

Hidekazu Abe