Abstract: A method is disclosed including: allowing a contract research organization device to generate clinical trial information and transmit the information to a blockchain server; allowing the server to register the information, and assign a first private key and a first public key to a set site device and transmit the assigned keys to the site device in response to a request from the organization device; allowing the server to complete applicant authentication using a second private key assigned to an applicant for a clinical trial; allowing the site device to confirm previous participation information of the applicant; and allowing the site device to perform the clinical trial based on the previous participation information, encrypt a performance result of the clinical trial using the first public key, a second public key corresponding to the second private key, and the second private key, and transmit the encrypted performance result to the server.

Abstract: Provided is an electrode device for analyzing a biomaterial, which includes: an electrode portion having a plurality of electrodes arranged spaced apart from a plate-shaped substrate and a biomaterial input portion formed on the substrate to be electrically connected to at least one of the plurality of electrodes; a housing having an electrode accommodation portion having one side open and accommodating the electrode portion; a printed circuit board fixed to the housing; a connector portion formed on one end portion of the printed circuit board and electrically and detachably coupled to an analysis apparatus; connection pillars electrically connected to the connector portion and having one end portion fixed to the printed circuit board and the other end portion formed to be in pressure contact with the electrode portion, wherein the connection pillars includes an electrically conductive material and is arranged to correspond to the plurality of electrodes; and an input hole penetrating through an upper surfac

Abstract: The present invention relates to a device for treating ballast water using an electrolysis method so as to prevent ship explosions, and to a method for controlling the prevention of ship explosions using same. The device for treating ballast water using an electrolysis method is installed in a ship, wherein the apparatus comprises: a partition wall for separating an explosion danger zone in which a ballast tank is installed, and a safety zone in which the apparatus for treating ballast water is installed; a chlorine-injection tube linearly passing through said partition wall so as to connect the apparatus for treating ballast water to the ballast tank; and a compressor installed in said chlorine-injection tube so as to maintain a positive pressure in said chlorine-injection tube by transferring water into said chlorine-injection tube, even when an operation using the chlorine-injection tube is stopped.