Abstract: The present disclosure relates to a method for non-oxidative direct conversion of methane. Specifically, in the method, a methane/hydrogen gas is introduced into an Inconel 600 reactor at a superficial velocity of 100 to 200 cm·min?1 and a catalyst is not externally introduced into the reactor. Under the conditions, a non-oxidative direct methane conversion reaction is performed in the Inconel 600 reactor. The method maximizes the reaction rate, minimizes coke formation, and increases the yields of C2 hydrocarbon compounds and aromatic compounds.

Abstract: A gripper assembly for charging and discharging a secondary battery is provided. The gripper assembly includes a gripper body part configured to press an electrode lead of the secondary battery, a contact member coupled to one side of the gripper body, the contact member being configured to be pressed on a surface of the electrode lead, a safety block part located in the gripper body part, the safety block having a shape that is transformed when heat is transferred from the secondary battery to release a pressed state of the electrode lead by the gripper body part, and a heat conducting part configured to connect the secondary battery and the safety block part. A secondary battery charging and discharging including the gripper assembly is also provided.

Abstract: The present disclosure relates to a method for vaccination management including at least: transmitting, by a medical institution device, a vaccination certificate issuance request, an identity certification verifiable credential (VC) for a user, a vaccination agency VC for a medical institution, and a digital signature of the medical institution, to a trusted institution server; verifying, by the trusted institution server, the vaccination agency VC based on a digital signature of a VC issuer included in the vaccination agency VC and the identifier of the trusted institution stored in a public distributed ledger; determining, by the trusted institution server, whether there is an authority for the vaccination certificate issuance request based on the vaccination agency VC and a medical institution database stored in the trusted institution server; and issuing, by the trusted institution server, a vaccination certification VC.

Abstract: An adhesive film and a display member including the same are disclosed. The adhesive film is formed of an adhesive composition including: a copolymer of a monomer mixture including a hydroxyl group-containing (meth)acrylate and a comonomer; and nanoparticles. The adhesive film has a creep at ?20° C. of about 50 ?m to about 100 ?m and a gel fraction of about 50% to about 75%.

Abstract: A device and a method for digital print image-connecting continuous printing according to an embodiment of the present invention comprise: an un-winder roll for un-winding printing fabric; a re-winder roll for winding the printing fabric on which printing has been completed; a printing engine provided between the un-winder roll and the re-winder roll, and including a blanket rotating while being in contact with a photo imaging plate and a print roller rotating while being in contact with the blanket; and a fabric direction switching mechanism for switching a transfer direction of the printing fabric passing between the blanket and the print roller into a forward direction or a reverse direction, wherein the printing engine prints a first divided image including a first overlapping area on a first fabric of the printing fabric when the transfer direction is the forward direction, locates only the first overlapping area printed on the first fabric under a second fabric of the printing fabric when the transfer d

Abstract: There are provided a memory system and an operating method thereof. A memory system includes: a plurality of storage regions, each including a plurality of memory cells; and a controller configured to provide a plurality of read retry sets, determine an applying order of the plurality of read retry sets based on characteristics of a read error occurred in a first storage region among the plurality of storage regions, and apply at least one of the read retry sets, based on the applying order, for a read retry operation performed on the first storage region.

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: The present invention relates to an apparatus and method for controlling automatic color calibration of a video wall by smoothly displaying an entire video on the video wall and improving user visibility. The automatic color calibration apparatus comprises a control unit configured to output the number of the plurality of video boards constituting the video wall to the display unit and store the number in a storage unit according to operation signals from the user input unit, and perform automatic color calibration for the plurality of video boards.

Abstract: The present disclosure relates to a copper-based catalyst for reverse water gas reaction including a gas-permeable amorphous shell formed by strong metal-support interaction. The inventors of the present disclosure synthesized a copper-ceria solid solution and then adjusted the surface defect sites of the solid solution, thereby producing a catalyst including enhanced surface defect sites and having a gas-permeable amorphous shell structure formed on each copper particle. When the catalyst production method according to the present disclosure is used, it is possible to synthesize a catalyst including a structure consisting only of very small Cu particles encapsulated by surface shells and Cu sites incorporated into the CeO2 lattice structure. When the synthesized catalyst is used in the RWGS reaction, it exhibits excellent low-temperature activity, high activity and durability, compared to conventional precious metal catalysts.

Abstract: A fastening apparatus includes: a plurality of fastening tools; a first movement mechanism configured to rotate the plurality of fastening tools in a circumferential direction; a second movement mechanism configured to rectilinearly move the plurality of fastening tools in a radial direction; and a third movement mechanism configured to rectilinearly move the plurality of fastening tools in a vertical direction. In particular, the first movement mechanism includes a closed-curve guide unit having a closed-curve shape and configured to define a route along which the plurality of fastening tools rotates in the circumferential direction.

Abstract: A supply control system for a tank utilized in a semiconductor manufacturing process is disclosed.

Abstract: Disclosed is an airbag device which varies and deploys a shape of an airbag cushion according to an attitude of a seat and a posture of a passenger to safely protect the passenger. In particular, the airbag device includes: a first tether of which one end is connected to an airbag housing, a second tether which includes a first portion connected between the other end of the first tether and a front surface of the airbag cushion, and a second portion connected between the other end of the first tether and the airbag housing to have a margin length, and a tether cutter provided to cut the first tether and configured to perform one deployment mode of a first deployment mode and a second deployment mode according to whether first tether is cut.

Abstract: The present disclosure relates to a method for non-oxidative direct conversion of methane. Specifically, in the method, a methane/hydrogen gas is introduced into an Inconel 600 reactor at a superficial velocity of 100 to 200 cm·min?1 and a catalyst is not externally introduced into the reactor. Under the conditions, a non-oxidative direct methane conversion reaction is performed in the Inconel 600 reactor. The method maximizes the reaction rate, minimizes coke formation, and increases the yields of C2 hydrocarbon compounds and aromatic compounds.

Abstract: The present invention relates to a method for manufacturing a high-purity nickel/cobalt mixed solution for cathode materials by using a two-circuit process, and particularly to a method for manufacturing a high-purity Ni/Co mixed solution for cathode materials by using a two circuit process that adopts a two-circuit process to extract cobalt and nickel in a simultaneous manner and prepare a Ni/Co mixed solution, thereby reducing the investment cost for the manufacturing process and downsizing mixer-settler facilities to maximize the efficiency of site utilization. The present invention skips the crystallization process by using the two-circuit process, so it is possible to solve the problem of increasing the unit product cost due to the additional process cost, prevent an increase in the consumption of the adjuster solution in each mixer-setter tank for pH adjustment and the process costs, and realize eco-friendly effects, such as cutting down the production of the process wastewater.

Abstract: Provided is a duct which is installed adjacent to a wall-type air conditioner to pass through a pipe connected to the air conditioner, which includes a base housing installed on a wall surface adjacent to the air conditioner, a horizontal partition wall disposed at the front side of the base housing to divide the inside of the duct into an upper space and a lower space, an upper housing covering the upper space, a translucent reservoir detachably mounted on a lower portion of the horizontal partition wall in response to the lower space and collecting condensed water generated from the air conditioner through an inlet formed in the horizontal partition wall, and a pump module installed in the upper space to discharge the condensed water collected in the reservoir. The reservoir is positioned below the upper housing and the horizontal partition wall to be always exposed to the outside.

Abstract: A fastening apparatus includes: a plurality of fastening tools; a first movement mechanism configured to rotate the plurality of fastening tools in a circumferential direction; a second movement mechanism configured to rectilinearly move the plurality of fastening tools in a radial direction; and a third movement mechanism configured to rectilinearly move the plurality of fastening tools in a vertical direction. In particular, the first movement mechanism includes a closed-curve guide unit having a closed-curve shape and configured to define a route along which the plurality of fastening tools rotates in the circumferential direction.

Abstract: Disclosed is an airbag device which varies and deploys a shape of an airbag cushion according to an attitude of a seat and a posture of a passenger to safely protect the passenger. In particular, the airbag device includes: a first tether of which one end is connected to an airbag housing, a second tether which includes a first portion connected between the other end of the first tether and a front surface of the airbag cushion, and a second portion connected between the other end of the first tether and the airbag housing to have a margin length, and a tether cutter provided to cut the first tether and configured to perform one deployment mode of a first deployment mode and a second deployment mode according to whether first tether is cut.

Abstract: A blockchain system is disclosed. A blockchain system according to one embodiment includes a plurality of nodes for communicating with each other through a distribution network and communicating with a blockchain client device outside the blockchain system, wherein each of the plurality of nodes can be configured to process transactions occurring in the blockchain system, collect vote items included in the transactions and including an account address corresponding to any one of the plurality of nodes, and elect, as a block generator, at least one of the plurality of nodes on the basis of the collected vote items. Other various embodiments identified through the specification are possible.

Abstract: An airbag apparatus includes an airbag cushion including a sub-vent hole, an opening/closing panel temporarily attached to the airbag cushion, and a tether including one end portion fixed to the airbag cushion and the other end portion fixed to the opening/closing panel, in which tension applied to the tether by a force for inflating the airbag cushion allows the tether to pull the opening/closing panel toward the sub-vent hole to close the sub-vent hole, and additional tension applied to the tether by an additional force loaded onto the airbag cushion allows the tether to additionally pull the opening/closing panel and separate the opening/closing panel in a detachably attached state from the airbag cushion to open the sub-vent hole.

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.