Abstract: Proposed is an air gap adjustment apparatus. The apparatus is for enabling an air gap between the inner surface of a stator and the outer surface of a rotor, which are installed in an inner space of a housing, to be uniform overall. A plurality of fastening holes are formed so as to surround a shaft through hole of an end plate constituting the housing. A fastener, which has passed through a bearing housing of a bearing, is fastened to each fastening hole so as to mount the bearing to the end plate. An adjusting member body of an adjusting member, which has passed through the bearing housing, is positioned in an adjusting member seating part which is formed at the entrance of each fastening hole. The adjusting member rotates about the adjusting member body so that a head part may adjust the position of the bearing.

Abstract: A MOS capacitor may include: an isolation layer formed in a substrate and defining an active region; a first electrode formed in the active region, and including an impurity region spaced from the isolation layer; and a second electrode formed over the substrate overlapping the impurity region, and including a gate having a plurality of gate patterns adjacent to each other with a gap therebetween.

Abstract: A MOS capacitor may include: an isolation layer formed in a substrate and defining an active region; a first electrode formed in the active region, and including an impurity region spaced from the isolation layer; and a second electrode formed over the substrate overlapping the impurity region, and including a gate having a plurality of gate patterns adjacent to each other with a gap therebetween.

Abstract: A method for preparing metal compound nanoparticles, comprising treating a uniform dispersion of at least one metal precursor in an organic solvent with a supercritical carbon dioxide fluid to attain a homogeneous mixture, which is subjected to a solvothermal reaction under a supercritical CO2 condition, makes it easy to prepare nanoparticles of a metal oxide, a doped metal compound, or a metal complex having various shapes.

Abstract: A method for preparing metal compound nanoparticles, comprising treating a uniform dispersion of at least one metal precursor in an organic solvent with a supercritical carbon dioxide fluid to attain a homogeneous mixture, which is subjected to a solvothermal reaction under a subcritical CO2 condition, makes it easy to prepare nanoparticles of a metal oxide, a doped metal compound, or a metal complex having various shapes.