Abstract: An atomic layer etching method using a ligand exchange reaction may include a substrate providing step of putting a substrate with a thin film formed thereon into a reaction chamber, a halogenated thin film forming step of forming a halogenated thin film on a surface of the thin film by infusing a halogenated gas into the reaction chamber, and an etching step of etching the halogenated thin film by infusing a ligand without a metal or metal precursor into the reaction chamber with the substrate with the halogenated thin film.

Abstract: A height adjuster of a seat belt for a vehicle may include a rail bracket configured to be fixedly mounted on a vehicle body so that rail grooves are formed to be continuously connected and the rail grooves are vertically disposed on the rail bracket, a slider configured to be coupled to the rail bracket and moving along a length direction of the rail bracket and having left and right surfaces provided with guide grooves so as to be fitted in edge portions of the rail bracket which are provided with the rail grooves, and a locking mechanism configured to be coupled to the slider so as to elastically slidably move and restrict a movement of the slider at a time of contacting the rail groove and release the restriction of the movement of the slider at a time of being separated from the rail groove.

Abstract: A height adjuster of a seat belt for a vehicle may include a rail bracket configured to be fixedly mounted on a vehicle body so that rail grooves are formed to be continuously connected and the rail grooves are vertically disposed on the rail bracket, a slider configured to be coupled to the rail bracket and moving along a length direction of the rail bracket and having left and right surfaces provided with guide grooves so as to be fitted in edge portions of the rail bracket which are provided with the rail grooves, and a locking mechanism configured to be coupled to the slider so as to elastically slidably move and restrict a movement of the slider at a time of contacting the rail groove and release the restriction of the movement of the slider at a time of being separated from the rail groove.

Abstract: The present invention relates to a composition for preventing or treating a respiratory disease containing an active ingredient in the form of a mixed herbal extract of Cnidii Rhizoma and Polygoni cuspidati Radix, and relates to a production method therefor. The mixed herbal extract of Cnidii Rhizoma and Polygoni cuspidati Radix has an outstanding 5-lipoxygenase suppressing activity, airway constriction suppressing activity, airway inflammation suppressing action, ear-swelling anti-inflammatory effect and antitussive and phlegm-loosening action, and has been confirmed to be useful in preventing or treating respiratory diseases including asthma, chronic obstructive pulmonary disease, acute and chronic bronchitis, allergic rhinitis, cough, expectoration, acute lower respiratory infections (bronchitis and bronchiolitis), and acute upper respiratory infections such an pharyngitis, tonsillitis and laryngitis.