Abstract: Proposed is a large displacement precision positioning adjustment apparatus including a mirror at an upper end, a fixed plate at a lower portion, linear driving parts including a linear driver performing a large displacement fine operation and a movement supporting part including a guide guiding a movement direction and a fixing part fixing the driver. The linear driver includes a first rotation driving part performing a large displacement movement, a third rotation driving part, a second rotation driving part performing a fine movement, and a moving shaft. The linear driving part includes an upper end connection part connecting an upper end of the linear driving part to the mirror, and a lower end connection part connecting a lower end of the linear driving part and the fixed plate, a first controller controlling a position of the linear driving part, and a second controller controlling a position of the mirror.

Abstract: A lithium secondary battery and a manufacturing method thereof, wherein the lithium secondary battery includes a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and an electrolyte, wherein the positive electrode includes a lithium iron phosphate-based compound having an amorphous-content index (AI) of 0.28 or less, preferably 0.20 to 0.28, and more preferably 0.20 to 0.27, as defined by the disclosed Equation (1).

Abstract: The present invention relates to a method of improving the corrosion resistance of a metal substrate surface using an oxygen reduction catalyst, which may improve the corrosion resistance of the metal substrate surface by coating the metal substrate surface with the oxygen reduction catalyst so that the metal substrate surface is changed to a passive state through the action of the oxygen reduction catalyst in an environment in which a stable oxide layer is not spontaneously formed on the metal substrate surface. The present invention has an advantage in that it can dramatically improve the corrosion resistance of the metal substrate under a corrosive environment by allowing a recoverable oxide layer to be formed on the metal substrate surface through the action of the oxygen reduction catalyst, applied to the surface, even in an environment in which an oxide layer is not spontaneously formed on the metal substrate.

Abstract: Disclosed are a separator module for fuel cells which may reduce pressure loss and improve flow distribution in a separator, and a unit cell for fuel cells including the separator module. The separator module includes a separator main body including a pair of manifold parts formed at both ends of the separator main body and having a plurality of manifolds, a main body reaction part formed between the pair of manifold parts such that reaction gas flows in the main body reaction part, and a pair of main body diffusion parts formed between the main body reaction part and the pair of manifold parts such that the reaction gas is diffused in the main body diffusion parts, and a porous body disposed on one surface of the separator main body in a region corresponding to the main body reaction part and the pair of main body diffusion parts.

Abstract: Disclosed herein are an apparatus and method for providing game maps. The apparatus for providing game maps includes memory configured to store maps for the play of a blast mission game, and a controller configured to provide a map including varied game play environment information for each round of the blast mission game.

Abstract: Disclosed herein are an apparatus and method for providing game replays. The apparatus for providing game replays includes: storage configured to store a game log for each game round of a game match including a plurality of game rounds that are performed sequentially; a controller configured to run the game round by providing a game screen of a three-dimensional game space to a plurality of players participating in the game match and also receiving control commands for characters from the plurality of players, and to, when the game round ends, generate a replay image showing changes in the location of a character corresponding to each of the plurality of players on a two-dimensional plan view of the three-dimensional game space based on the game log of the game round; and an input/output interface configured to provide the replay image to the plurality of players.

Abstract: In accordance with one aspect of the present disclosure, there is provided a steel material for a tailor-welded blank, including 0.04 to 0.06 wt % of carbon (C), 1.2 to 1.5 wt % of manganese (Mn), 0.01 to 0.10 wt % of titanium (Ti), 0.01 to 0.10 wt % of niobium (Nb), and the balance of iron (Fe) and inevitable impurities; having a tensile strength (TS) of 550 MPa or greater, a yield strength (YS) of 300 MPa or greater, and an elongation (EL) of 20% or greater; and having a dual-phase structure of ferrite and martensite.

Abstract: In accordance with one aspect of the present disclosure, there is provided a steel material for a tailor-welded blank, including 0.04 to 0.06 wt % of carbon (C), 1.2 to 1.5 wt % of manganese (Mn), 0.01 to 0.10 wt % of titanium (Ti), 0.01 to 0.10 wt % of niobium (Nb), and the balance of iron (Fe) and inevitable impurities; having a tensile strength (TS) of 550 MPa or greater, a yield strength (YS) of 300 MPa or greater, and an elongation (EL) of 20% or greater; and having a dual-phase structure of ferrite and martensite.

Abstract: The present invention relates to a method of improving the corrosion resistance of a metal substrate surface using an oxygen reduction catalyst, which may improve the corrosion resistance of the metal substrate surface by coating the metal substrate surface with the oxygen reduction catalyst so that the metal substrate surface is changed to a passive state through the action of the oxygen reduction catalyst in an environment in which a stable oxide layer is not spontaneously formed on the metal substrate surface. The present invention has an advantage in that it can dramatically improve the corrosion resistance of the metal substrate under a corrosive environment by allowing a recoverable oxide layer to be formed on the metal substrate surface through the action of the oxygen reduction catalyst, applied to the surface, even in an environment in which an oxide layer is not spontaneously formed on the metal substrate.

Abstract: An apparatus for manufacturing a gas diffusion layer for fuel cells includes: a conveyer transferring a base sheet for a macroporous layer of the gas diffusion layer in one direction before water repellent coating; a nozzle disposed around the conveyer to coat the transferring base sheet with a water repellent in a fiber type or desired pattern; and a nozzle transfer unit combined with an upper end of the nozzle to transfer the nozzle along a desired trajectory.

Abstract: In accordance with one aspect of the present disclosure, there is provided a steel material for a tailor-welded blank, including 0.04 to 0.06 wt % of carbon (C), 1.2 to 1.5 wt % of manganese (Mn), 0.01 to 0.10 wt % of titanium (Ti), 0.01 to 0.10 wt % of niobium (Nb), and the balance of iron (Fe) and inevitable impurities; having a tensile strength (TS) of 550 MPa or greater, a yield strength (YS) of 300 MPa or greater, and an elongation (EL) of 20% or greater; and having a dual-phase structure of ferrite and martensite.

Abstract: In accordance with one aspect of the present disclosure, there is provided a steel material for a tailor-welded blank, including 0.04 to 0.06 wt % of carbon (C), 1.2 to 1.5 wt % of manganese (Mn), 0.01 to 0.10 wt % of titanium (Ti), 0.01 to 0.10 wt % of niobium (Nb), and the balance of iron (Fe) and inevitable impurities; having a tensile strength (TS) of 550 MPa or greater, a yield strength (YS) of 300 MPa or greater, and an elongation (EL) of 20% or greater; and having a dual-phase structure of ferrite and martensite.

Abstract: Disclosed herein is a fuel cell stack with improved manufacturing performance. The fuel cell stack includes: a separator that comprises a diffusion part, as being provided with a diffusion channel, configured to distribute reaction gas and cooling water and a reaction part, as being continuously formed from the diffusion part and provided with a reaction channel that has a height greater than that of the diffusion channel, configured to move reaction gas distributed from the diffusion part and generate electrons by a chemical reaction; and a gas diffusion layer configured to contact the separator at the diffusion part and the reaction part.

Abstract: The present invention relates to a method for touch control in a mobile real-time simulation game. Particularly, the present invention relates to a touch control method which can provide a function selected among predetermined functions according to the interval from when a touch has been input to when the next touch is input and the pattern type of input touch. A method for touch control in a simulation game performed using multiple units according to one aspect of the present invention may comprises: a first step for displaying the simulation game through a display unit; a second step for inputting a touch having a first pattern on at least a partial area of the display unit; a third step for inputting a touch having a predetermined function, using the interval between when the touch having the first pattern is input and when the touch having the second pattern is input and the pattern type of the input touch having the first pattern and the input touch having the second pattern.

Abstract: A separator for a fuel cell allows air to bypass a diffusion part, which is frequently exposed to air, and thus flow directly to a reaction surface, which can reduce deterioration of a polymer electrolyte membrane. The separator includes a separator main body having a diffusion part formed thereon that is configured to allow air to be diffused and supplied from an air inlet manifold to the reaction surface; and a gasket line formed on the separator main body and surrounding the air inlet manifold and the reaction surface to maintain airtightness. The separator main body or the gasket line includes a bypass flow path formed thereon so as to allow air supplied from the air inlet manifold to flow directly to the reaction surface without passing through the diffusion part.

Abstract: A separator for a fuel cell and a unit cell of a fuel cell are disclosed. The separator for the fuel cell includes a separation plate having a coupling protrusion that protrudes from an edge thereof, and a porous body having a coupling hole into which the coupling protrusion is fixedly inserted, so that the porous body is coupled to a plane of the separation plate. The porous body defining a path in which reactive gases flow.

Abstract: There is disclosed a multi-wavelength endoscopic system for imaging an observation site labeled with a plurality of fluorescent materials having different colors. The system includes an imaging unit configured to acquire image data by polarizing incident light reflected from the observation site in a first direction and a second direction perpendicular to the first direction, dividing a spectrum region of the incident light polarized in the first direction and the second direction into a plurality of spectrum channels and measuring the intensity of light for each of the spectrum channel. The system further includes a computing unit configured to store a single fluorescence spectrum extracted from sample image data obtained by single-treating the observation site with each of the fluorescent materials and configured to separate and output the image data obtained in the imaging unit using the single fluorescence spectrum so that each of the fluorescent materials is displayed separately.

Abstract: A separator for a fuel cell includes a plurality of channels formed in a reaction surface in the direction of gravity in order to permit reaction gas and generated water to flow therethrough. The fuel cell includes a membrane electrode assembly (MEA) and a gas diffusion layer (GDL). The channels have a wave shape in the reaction surface, and each of the channels includes curved portions and straight portions that are arranged alternately.

Abstract: Disclosed herein is a fuel cell stack with improved manufacturing performance. The fuel cell stack includes: a separator that comprises a diffusion part, as being provided with a diffusion channel, configured to distribute reaction gas and cooling water and a reaction part, as being continuously formed from the diffusion part and provided with a reaction channel that has a height greater than that of the diffusion channel, configured to move reaction gas distributed from the diffusion part and generate electrons by a chemical reaction; and a gas diffusion layer configured to contact the separator at the diffusion part and the reaction part.

Abstract: A separator for a fuel cell allows air to bypass a diffusion part, which is frequently exposed to air, and thus flow directly to a reaction surface, which can reduce deterioration of a polymer electrolyte membrane. The separator includes a separator main body having a diffusion part formed thereon that is configured to allow air to be diffused and supplied from an air inlet manifold to the reaction surface; and a gasket line formed on the separator main body and surrounding the air inlet manifold and the reaction surface to maintain airtightness. The separator main body or the gasket line includes a bypass flow path formed thereon so as to allow air supplied from the air inlet manifold to flow directly to the reaction surface without passing through the diffusion part.