Nec Corporation

Mitsubishi Hitachi Power Systems, Ltd.

Shintaro Matsumoto

Hajime Ishikawa

Shunsuke Akimoto

Kousuke Ishida

Shinji Oominato

Masami Sakaguchi

Daigo Watanabe

Masaaki Fujita

Takumi Tokiyoshi

Yuichi Kanemaki

Fumitoshi Sakata

Hiroyuki Ohyama

Yasuharu Chuman

Takuya Fukahori

Ichiro Ohtsu

A field management apparatusis provided with a learning model generation unitthat generates a learning modelto learn feature amounts of the image of the phenomenon that results from the fault in the field equipment, an image acquisition unitthat acquires an aerial image of a target region, an image specification unitthat applies the aerial image to the learning modeland specifies an image of the phenomenon that results from the fault in the field equipment in the aerial image, and a fault location specification unitthat specifies a fault location of the field equipment in the target region, based on the image of the phenomenon that results from the fault in the field equipment.

Field management apparatus, field management method, and computer readable recording medium

A vegetation index calculation apparatus () is provided with a learning model generation unit () that generates a learning model, by using an image of a crop targeted for calculation of a vegetation index and an image of plants other than the crop to learn a feature amount of the image of the crop, an image acquisition unit () that acquires an aerial image of a target region where the crop is being grown, a specification unit () that applies the aerial image acquired by the image acquisition unit () to the learning model generated by the learning model generation unit (), and specifies the image of the crop in the aerial image acquired by the image acquisition unit (), and a vegetation index calculation unit () that calculates the vegetation index of the crop, using the image of the crop specified by the specification unit ().

Vegetation index calculation apparatus, vegetation index calculation method, and computer readable recording medium

A vegetation index calculation apparatus () is provided with a specification unit () that collates height distribution data indicating a distribution of the height of plants that exist in a target region with predicted height data of a crop targeted for calculation of a vegetation index, and specifies a region where the crop exists within the target region, and a vegetation index calculation unit () that calculates the vegetation index of the crop that exists in the region specified by the specification unit ().

A method of extending a life expectancy of a high-temperature piping, includes removing a heat insulation material which covers the piping having a high creep rupture risk, and lowering an outer surface temperature of piping, wherein a width of an exposed portion obtained is twice or more a distance from a peeled-off end portion of the exposed portion to a portion where a compressive stress is asymptotical to 0 after a change in stress between a tensile stress and the compressive stress occurring in the piping due to the removal of the heat insulation material is made from the tensile stress to the compressive stress, and the distance is calculated based on the following formulae, &#x3b2;x=5, here, &#x3bd; is a Poisson's ratio, a is an average radius of the piping, and h is a plate thickness of the piping.

Method of extending life expectancy of high-temperature piping and life expectancy extension structure of high-temperature piping

Growing community of inventors

Tokyo, Japan

Shintaro Matsumoto