Abstract: A fuel cell system and a method of controlling the system are provided. The fuel cell system includes: a fuel cell having a plurality of cells to generate power through a reaction between hydrogen supplied to an anode space and oxygen supplied to a cathode space; a power storage device to be charged with power generated by the fuel cell or discharged to supply power; and a controller. The controller recirculates hydrogen, diffused from the anode space to the cathode space, into the anode space by supplying power charged in the power storage device to the fuel cell when the power generation of the fuel cell is stopped. The controller is configured to control whether to supply the power to the fuel cell based on a pressure measured in the anode space and voltages of the cells that constitute the fuel cell.

Abstract: Provided is a marker composition for predicting the prognosis of cancer and a method for predicting the prognosis of cancer using same and, more particularly, to a marker composition for predicting the prognosis of cancer comprising an agent for measuring an expression level of mRNA or protein thereof of at least one gene selected from the group consisting of ESR1, BEST1, ACTA2, HIPK2, IGSF9, ASCC2, JUN, PPP2R5A, SMAD3, CREBBP, EP300, and DDX5, to a method for predicting the prognosis of cancer using same, and to a method for providing information for determining a strategy for treating cancer.

Abstract: An electric wire connector having fire-extinguishing function includes: a protective holder (100) comprising a conductor cap (120) and an insulator gap (140), wherein the conductor cap (120) accommodates a conductor part 12 of an electric wire connection part (10), wherein the insulator cap (140) wherein the insulator cap (140) has an inner diameter larger than an inner diameter of the conductor cap (120) and accommodates an insulator part (14) of the connection part (10); a metal tube (200) installed within the conductor cap (120) and press-fits in the conductor part (12); and a fire-extinguishing module (300) installed in the insulator cap (140) and having a fire-extinguishing tunnel (302), wherein the fire-extinguishing tunnel (302) is provided in the insulator cap (140), wherein the insulator part (14) is inserted in the fire-extinguishing tunnel, wherein the fire-extinguishing powder is ejected in response to a heat of a fire.

Abstract: The objective of the present invention is to provide an accommodation ladder fixing device, which more firmly and safely fixes, to an exterior wall of a ship, an accommodation ladder temporally provided so as to allow pilots to safely board and disembark the ship. That is, the present invention comprises: a housing (10), which has a fixing plate (13) formed at the rear end thereof to be mounted on the accommodation ladder (100), has a fixing box (11), of which the front side is opened, formed on the fixing plate (13), and has hinge shafts (15) formed at both sides of a through-hole (14) of the fixing box (11); an attachment/detachment means (20), which has a movable block (21) insertively provided so as to be movable forward and rearward to/from the fixing box (11), and a magnetic member (22) attached/detached to/from the exterior wall of a hull (200) and provided at the front end of the movable block.

Abstract: The objective of the present invention is to provide an accommodation ladder fixing device, which more firmly and safely fixes, to an exterior wall of a ship, an accommodation ladder temporally provided so as to allow pilots to safely board and disembark the ship.

Abstract: The present invention relates to a reversible permeability measuring device for measuring magnetic characteristics and magnetic flux change in a specimen, as one of a plurality of non-destructive methods for evaluating mechanical properties. The reversible permeability measuring device of the present invention directly measures a magnetic field change induced at the surface of the specimen through the use of a magnetic potentiometer and a flux meter, thereby accurately evaluating the deterioration of materials.

Abstract: The present invention relates to a reversible permeability measuring device for measuring magnetic characteristics and magnetic flux change in a specimen, as one of a plurality of non-destructive methods for evaluating mechanical properties. The reversible permeability measuring device of the present invention directly measures a magnetic field change induced at the surface of the specimen through the use of a magnetic potentiometer and a flux meter, thereby accurately evaluating the deterioration of materials.