Abstract: A small modular reactor cooling device and cooling method are provided. A small modular reactor cooling device includes: a reactor vessel in which a coolant circulates along a flow path structure; and a coolant storage unit provided inside the reactor vessel and charged with the coolant inside based on the circulating flow, wherein the coolant storage unit is in contact with a core melted material through the coolant charged therein when the core melted material is generated in the reactor vessel in the event of a serious accident and performs a cooling treatment on the core melted material to prevent the core melted material from leaking out to the outside.

Abstract: There are provided a small nuclear reactor cooling system and cooling method. The small nuclear reactor cooling system includes: a cooling unit in which a small nuclear reactor is positioned and which performs cooling processing corresponding to a severe accident in the cooling system when the severe accident occurs in the small nuclear reactor, wherein the cooling unit provides a 1st cooling fluid so as to perform the cooling processing in response to heat generated by the severe accident.

Abstract: A small modular reactor apparatus and an operation method thereof are provided. A small modular reactor apparatus includes a body unit including a reactor core therein; and an opening and closing unit that is provided to be mounted and detachable from the body unit to open and close an interior of the body unit, wherein the opening and closing unit is provided to be mounted and detachable based on seating downward inside the body unit, and a plurality of In-core instrument (ICI) modules for state measurement of a small modular reactor are inserted and mounted in the opening and closing unit.

Abstract: Provided is a ventricular assist device cannula, and more particularly, a ventricular assist device cannula with electrodes. An exemplary embodiment of the present invention provides a ventricular assist device cannula with electrodes, including: a connecting tube connecting an incision of a body tissue and a ventricular assist device so that blood can flow; and electrodes connected with the connecting tube and contacting the incision of the body tissue to transfer an electric signal to the body tissue.