Abstract: A roller for supporting a material according to an embodiment of the present invention includes: a rotation shaft; a pipe having a space in which the rotation shaft is inserted; a deforming part that is connected to the rotation shaft and the pipe to deform the pipe; and a support part that is installed at the pipe to support the material. The deforming part includes: a thread portion provided on the rotation shaft; a nut part screwed to the thread portion; an inclined part that is disposed at an inner surface of the pipe and that is pressed by the nut part according to rotation of the rotation shaft; and a driving source that is connected to the rotation shaft to rotate the rotation shaft.

Abstract: An antenna module according to an embodiment of the present invention comprises: a substrate that includes a ground portion and a dielectric portion; a first antenna that has a length corresponding to a first frequency band and is located on one side of a first edge of the substrate; a second antenna that has a length corresponding to a second frequency band and is located on one side of a second edge of the substrate; and a stub that is located on the one side of the first edge or the one side of the second edge so as to be between the first antenna and the second antenna. The stub is spaced a first distance from the first antenna and spaced a second distance from the second antenna, wherein the first distance and the second distance are set on the basis of a first wavelength band and a second wavelength band which correspond to the first frequency band and the second frequency band.

Abstract: Provided is a wastewater purification method, the method including: supplying a first mixed stream, in which an acid component and wastewater including water, a nitrile-based monomer, and ammonia are mixed, to a first column; recovering the nitrile-based monomer from an upper discharge stream from the first column; supplying a second mixed stream, in which a lower discharge stream from the first column and a base component are mixed, to a second column; and recovering the ammonia from an upper discharge stream from the second column and separating purified wastewater.

Abstract: A method for manufacturing a pouch-type secondary battery according to an embodiment of the present invention may include: a first sealing operation of fusing a lead film, which is attached to an electrode lead of an electrode assembly, to a sealing portion of a pouch in which the electrode assembly is accommodated; and a second sealing operation of sealing the sealing portion of the pouch. The first sealing operation may include: a heating process of irradiating with a laser beam a region which is present in the sealing portion of the pouch and corresponds to the lead film, thereby heating the lead film and melting a resin layer of the region; and a bonding process of compressing the region, thereby bonding the lead film and the melted resin layer.

Abstract: A pre-folding apparatus for a pouch-type battery includes: a main frame, a rib, a pusher support portion, and a pusher. The main frame includes a pair of columns and a horizontal bar configured to connect upper portions of the columns. The rib installed to be fixed across the pair of columns under the horizontal bar has a forming protrusion whose upper end is flat. The pusher support portion disposed above the rib includes a linear driving portion configured to move the pusher support portion in a vertical direction along the columns. Finally, the pusher installed at the pusher support portion is aligned with the forming protrusion.

Abstract: A sealing unit includes a sealing part configured to seal an electrode stack formed by alternately stacking electrodes and separators and a body part extending from the sealing part, wherein a sealing groove that is recessed inward is formed in the sealing part, and the sealing part includes a bottom surface forming the bottom of the sealing groove, a first inclined surface that is an inclined surface extending to be inclined upward from the bottom surface, and a second inclined surface that is an inclined surface extending to be inclined downward from the bottom surface.

Abstract: A device for folding a pouch having first and second cup parts, first and second circumferential parts formed flat along circumferences thereof, respectively, includes: lower and upper nests on which the first and second cup parts are seated; first and second guides fixed to the lower and upper nests and having first and second protrusions protruding upwardly therefrom, the first and second protrusions in close contact with each other forming a support protrusion; and a pressing part allowing a connection part of the first and second circumferential parts to be in close contact with the support protrusion when the first and the second cup parts are seated on the lower and the upper nests, respectively, wherein when the pressing part causes the connection part and the support protrusion to be in contact, the upper nest rotates so that the second cup part is folded onto the first cup part.

Abstract: The present invention relates to a pouch-shaped secondary battery sealing apparatus and a pouch-shaped secondary battery manufacturing method capable of radiating an infrared laser to a sealed portion in an overlapping state, whereby it is possible to increase sealing force, to prevent occurrence of wrinkles, and to reduce sealing time when forming a sealed portion of a pouch-shaped secondary battery case.

Abstract: Disclosed herein is a method for acquiring and processing a medical image, comprising obtaining the first to n-th sectional images of the first to n-th regions through non-sequential sectional-image acquisition starting from one of the first to n-th regions and sequentially arranging the obtained first to n-th sectional images.

Abstract: Disclosed herein is a method for acquiring and processing a medical image, comprising obtaining the first to n-th sectional images of the first to n-th regions through non-sequential sectional-image acquisition starting from one of the first to n-th regions and sequentially arranging the obtained first to n-th sectional images.