Abstract: A security system includes a backup acquisition unit configured to store given information indicating states of backup data together with backup images generated from the backup data for each backup generation; and a determination unit configured to generate, when a predetermined timing comes, determination information for determining whether there is an abnormality in the stored backup data, based on a predetermined determination rule and the given information for each backup generation, and to output the generated determination information.

Abstract: A security system includes a backup acquisition unit configured to store given information indicating states of backup data together with backup images generated from the backup data for each backup generation; and a determination unit configured to generate, when a predetermined timing comes, determination information for determining whether there is an abnormality in the stored backup data, based on a predetermined determination rule and the given information for each backup generation, and to output the generated determination information.

Abstract: This invention relates to a device for removing fused slags on slabs wherein <-shaped cutters with the front center thereof being the apex are disposed on the front and rear positions of a tool rest being vertically movable with a required spacing and being close to the undersurface of the slab, respectively. At least the rear cutter is biased upwardly by a spring mounted in the lower portion of the tool rest. At the same time the shear point in the rear cutter is made to be somewhat higher than that of the front cutter in order to cut out the fused slags deposited on the undersurface of the slab on a transferring roller table with a prescribed length. If it is arranged in such a way that a water-cooling means for water-cooling the deposited portion of the fused dross is disposed before and behind the above device for removing fused slags on slabs, respectively, to cut off the cured dross, the fused slags can more effectively be removed.

Abstract: Apparatus for removing a torch-cutting slag of a slab, wherein a cutting tool mount vertically and rotatably controllable is transversely racked beneath a conveying roller table for conveying the slab fusion-cut to a predetermined length in a direction perpendicular to the conveying roller table, and cutting tools for cutting the torch-cutting slag of the slab are provided at least at positions symmetrical with each other along the longitudinal outer surfaces of the cutting tool mount. The cutting tools for cutting the torch-cutting slag are constituted by a plurality of cutting tools arranged in succession from the center of the forward portion, i.e., the input side, to opposite sides of the rear portion of the cutting tool mount, the cutting tools are gradually increased in the level of projection from the forward portion to the rear portion on the cutting tool mount and are resiliently supported on the cutting tool mount through springs.

Abstract: In the process of conveying a slab from continuous casting or large ingot casting equipment by means of a conveyance table comprising conveyance rollers, the slab is stopped on the table and raised therefrom and, at the raised position, the slab is divided lengthwise thereof by gas cutting into at least two. The divided slabs are individually transferred to the downstream, where slags formed on the lower end edge of the cut surface of each divided slab are continuously removed.