Abstract: Proposed is a heat dissipating device using turbulent flow. In the heat dissipating device, a plurality of block flow paths are formed in parallel inside a block body, a first cap and a second cap are mounted on side surfaces of the respective ends of the block body so as to connect the block flow paths, a working fluid flows into the block flow paths, and the working fluid which has passed through the block flow paths is transferred to the outside. Turbulence generators are mounted inside the block flow paths, and finishing end portions on the respective ends of the turbulence generators are supported by the first cap and the second cap and are positioned inside the block flow paths.

Abstract: The present invention relates to a fusion protein comprising a SARS-CoV-2-derived receptor-binding domain and a nucleocapsid protein, and the use thereof. The fusion protein comprising a coronavirus-derived receptor-binding domain and a nucleocapsid protein is highly applicable to a multivalent vaccine composition having greatly improved in-vivo half-life and remarkably superior efficacy compared to an immunogenic composition comprising only a receptor-binding domain. In particular, the fusion protein can greatly improve the titer of the coronavirus-specific antibody formation and T-cell immune response, and is thus useful for the prevention and treatment of coronaviruses comprising SARS-CoV-2.

Abstract: Proposed is an all-solid-state battery including a self-standing sheet layer positioned on a negative electrode current collector. The all-solid-state battery may include the negative electrode current collector, the self-standing sheet layer positioned on the negative electrode current collector, a solid electrolyte layer positioned on the sheet layer, a positive electrode active material layer positioned on the solid electrolyte layer, and a positive electrode current collector positioned on the positive electrode active material layer. The sheet layer contains carbon nanotubes.

Abstract: The studying system and studying method using virtual card are described. The present invention comprises: (1) a course scheduling feature that divides study courses into a plurality of study sessions considering the learning situations of the user, selects and assigns virtual flash cards to such study sessions, and determines the sequence of such virtual flash cards contained in such study sessions; (2) a session management feature that carries out such study sessions by displaying the front side of the virtual flash cards contained in such study sessions and by allowing the users to enter answers to such virtual flash cards; and (3) an entry management feature that provides an interface for users to enter such answers.