Abstract: An aircraft assembly system includes a jig; and a position adjuster connected to the jig and configured to adjust a position of the jig, wherein the jig includes a ball stud between the jig and the position adjuster, and the position adjuster includes a socket in which at least a portion of the ball stud is accommodated and in which the ball stud is rotatably fastened.

Abstract: A display panel includes an amorphous silicon gate driver in which a lower voltage than the gate-off voltage output from the gate driver is applied to an adjacent stage as a low voltage transmission signal.

Abstract: An apparatus for preparing lithium sulfide includes a reaction chamber that has a reaction space for generating lithium sulfide and is provided to move a supplied lithium raw material in a predetermined direction; a lithium raw material supply unit provided to continuously supply the lithium raw material to an upstream side of the reaction chamber in the predetermined direction; a hydrogen sulfide supply unit provided to supply hydrogen sulfide to the reaction chamber; a heating unit; a lithium sulfide recovery unit provided on a downstream side of the reaction chamber in the predetermined direction and provided to recover lithium sulfide that is generated by a reaction between the hydrogen sulfide and the lithium raw material in the reaction chamber; an inert gas supply unit provided to supply an inert gas to the upstream side of the reaction chamber in the predetermined direction; and a moisture removal unit.

Abstract: The present invention may provide a respiration adjustment device and a respiration measurement mouthpiece assembly including same, the device comprising: a body part in which an inlet part through which air exhaled by breathing of a user is introduced, an outlet part through which air is discharged and which is coupled to a mouthpiece, and an internal flow path are formed; and a pressure regulator provided in the internal flow path and adjusting the pressure of air through the manipulation of the user. According to the description above, a user can adjust respiratory pressure by himself or herself according to the user's health condition and thus perform a breathing exercise suitable for each individual user. Therefore, the present invention can increase an effect of the breathing exercise.

Abstract: A respiration measurement device includes: a first body which has an air flow path formed therein to allow air generated by respiration of a user to be introduced and moved therethrough, a part of the air flowpath being opened to form an opening; a second body which includes a respiration. measurement unit for measuring the pressure of air moving through the air flow path, is detachably formed at the first body, and is installed to close the opening formed through the first body; and a mouthpiece which is detachably coupled to the inlet side of the air flow path.

Abstract: Provided are a rubber composition for a tire tread having improved braking performance, abrasion performance, and anti-aging performance, and a tire manufactured using this rubber composition. Disclosed is a rubber composition for a tire tread, the composition including 100 parts by weight of raw material rubber, 60 to 130 parts by weight of a reinforcing filler, and 10 to 60 parts by weight of modified natural oil, wherein the modified natural oil includes 50% to 90% by weight of a first natural oil; and 10% to 50% by weight of a second natural oil having a weight average molecular weight that is 2 to 10 times the weight average molecular weight of the first natural oil, with respect to the total weight of the modified natural oil.

Abstract: Provided are a rubber composition for a tire tread having improved braking performance, abrasion performance, and anti-aging performance, and a tire manufactured using this rubber composition. Disclosed is a rubber composition for a tire tread, the composition including 100 parts by weight of raw material rubber, 60 to 130 parts by weight of a reinforcing filler, and 10 to 60 parts by weight of modified natural oil, wherein the modified natural oil includes 50% to 90% by weight of a first natural oil; and 10% to 50% by weight of a second natural oil having a weight average molecular weight that is 2 to 10 times the weight average molecular weight of the first natural oil, with respect to the total weight of the modified natural oil.

Abstract: Disclosed is a carbonation device including: a storage tank storing a carbonation subject solution; a droplet spray unit spraying the carbonation subject solution from the storage tank as droplets; a carbonation reaction tank disposed with the droplet spray unit and filled with a carbonation gas under a predetermined pressure to provide a slurry by a carbonation reaction of the droplet-sprayed carbonation subject solution with the filled carbonation gas; a carbonation gas supply unit supplying the carbonation gas into the carbonation reaction tank to maintain the carbonation gas in the carbonation reaction tank under the predetermined pressure; and a slurry outlet unit ejecting the slurry from the carbonation reaction tank to maintain the slurry formed in the carbonation reaction tank within a predetermined level, and a method of carbonation using the same.

Abstract: A method of extracting lithium from a lithium bearing solution and specifically, economically extracting lithium from a lithium bearing solution comprising the steps of: adding a nucleus particle to a lithium bearing solution; and precipitating the dissolved lithium in the lithium bearing solution as lithium phosphate by adding a phosphorous supplying material to the lithium bearing solution including the nucleus particle is provided.

Abstract: Disclosed is a method of extracting lithium from a solution including lithium. The method of extracting lithium from a solution including lithium includes: separating the solution including lithium into a monovalent ion-containing solution and a solution including ions having more than divalence using a separation membrane having a negative charge on its surface; removing impurities from the monovalent ion-containing solution; and precipitating lithium dissolved in the monovalent ion-containing solution into lithium phosphate by adding a phosphorus-supplying material to the monovalent ion-containing solution.

Abstract: The present invention relates to a method of manufacturing lithium hydroxide and a method of manufacturing lithium carbonate using the same. The method of manufacturing lithium hydroxide includes: preparation of a lithium phosphate aqueous solution including lithium phosphate particles; addition of a phosphate anion precipitation agent to the lithium phosphate aqueous solution; and precipitating a sparingly soluble phosphate compound through a reaction of cations of the phosphate anion precipitation agent with anions of the lithium phosphate.

Abstract: Disclosed is a one coat painting composition comprising a base including a polyester resin in an amount of about 15 to 45 wt %, a first acrylic resin in an amount of about 15 to 25 wt %, and a second acrylic resin in an amount of about 35 to 65 wt % and a coating method thereof. The composition makes it possible to maintain and improve a high gloss finish of a high gloss injection molded substrate through a single primary coating on the substrate and satisfies environment resistant properties of exterior parts, such as adhesiveness, weather resistance, and scratch resistance, and, thus, is widely suitable for use on exterior plastic parts of automobiles.

Abstract: Disclosed is a method of extracting lithium from a solution including lithium. The method of extracting lithium from a solution including lithium includes: separating the solution including lithium into a monovalent ion-containing solution and a solution including ions having more than divalence using a separation membrane having a negative charge on its surface; removing impurities from the monovalent ion-containing solution; and precipitating lithium dissolved in the monovalent ion-containing solution into lithium phosphate by adding a phosphorus-supplying material to the monovalent ion-containing solution.

Abstract: Disclosed is a one coat painting composition comprising a base including a polyester resin in an amount of about 15 to 45 wt %, a first acrylic resin in an amount of about 15 to 25 wt %, and a second acrylic resin in an amount of about 35 to 65 wt % and a coating method thereof. The composition makes it possible to maintain and improve a high gloss finish of a high gloss injection molded substrate through a single primary coating on the substrate and satisfies environment resistant properties of exterior parts, such as adhesiveness, weather resistance, and scratch resistance, and, thus, is widely suitable for use on exterior plastic parts of automobiles.

Abstract: The present invention relates to a method of manufacturing lithium hydroxide and a method of manufacturing lithium carbonate using the same. The method of manufacturing lithium hydroxide includes: preparation of a lithium phosphate aqueous solution including lithium phosphate particles; addition of a phosphate anion precipitation agent to the lithium phosphate aqueous solution; and precipitating a sparingly soluble phosphate compound through a reaction of cations of the phosphate anion precipitation agent with anions of the lithium phosphate.

Abstract: Disclosed is a carbonation device including: a storage tank storing a carbonation subject solution; a droplet spray unit spraying the carbonation subject solution from the storage tank as droplets; a carbonation reaction tank disposed with the droplet spray unit and filled with a carbonation gas under a predetermined pressure to provide a slurry by a carbonation reaction of the droplet-sprayed carbonation subject solution with the filled carbonation gas; a carbonation gas supply unit supplying the carbonation gas into the carbonation reaction tank to maintain the carbonation gas in the carbonation reaction tank under the predetermined pressure; and a slurry outlet unit ejecting the slurry from the carbonation reaction tank to maintain the slurry formed in the carbonation reaction tank within a predetermined level, and a method of carbonation using the same.

Abstract: The present invention relates to a method of extracting lithium with high purity from a lithium bearing solution by electrolysis. More specifically, the present invention provides a method of economical extraction of lithium from the lithium bearing solution by adding a phosphorous supplying material to the solution to prepare a lithium phosphate aqueous solution subject to electrolysis.

Abstract: A method of extracting lithium from a lithium bearing solution and specifically, economically extracting lithium from a lithium bearing solution comprising the steps of: adding a nucleus particle to a lithium bearing solution; and precipitating the dissolved lithium in the lithium bearing solution as lithium phosphate by adding a phosphorous supplying material to the lithium bearing solution including the nucleus particle is provided.

Abstract: The present invention relates to a method of economical extraction of magnesium, boron and calcium, while minimizing the loss of lithium, from a lithium bearing solution. More specifically, the present invention provides a method for economical extraction of magnesium, boron, and calcium, while minimizing the loss of lithium, from a lithium bearing solution comprising the steps of: (a) adding an alkali in the lithium bearing solution to precipitate magnesium hydroxide; (b) absorbing boron ions on the surface of the magnesium hydroxide by adjusting the pH to about 8.5 to about 10.5; and (c) simultaneously extracting magnesium and boron by filtering the magnesium hydroxide absorbed with the boron ions from the lithium bearing solution.

Abstract: The present invention relates to a method of extracting lithium from a lithium bearing solution. More specifically, the present invention provides a method of economical extraction of lithium from a lithium bearing solution by adding a phosphorous supplying material to the solution to precipitate lithium phosphate from the dissolved lithium.