Abstract: A locking module of a wire auto-winding device includes a first case having a coupling projection formed thereon; a rotating piece inserted over the coupling projection of the first case in order to be rotated clockwise or counterclockwise; a button member coupled to the rotating piece and being slid in a first direction to rotate the rotating piece by means of a button operation; a stopper member coupled to the rotating piece to be slid in a second direction by means of the rotation of the rotating piece; a resilient spring for pushing and returning one of the button member or the stopper member in the opposite direction; and a second case fastened to the first case to form a component receiving space therein.

Abstract: A multifunctional micro speaker including a frame; a diaphragm having an outer circumferential portion fixed to the frame; a voice coil fixed to a lower surface of the diaphragm; a first suspension having an outer circumferential portion fixed to the frame and having a predetermined elasticity; a yoke fixed to the first suspension; a first permanent magnet fixed to a bottom surface of the yoke; a plate fixed to an upper surface of the first permanent magnet; a second suspension including a supporter and a protrusion, and having a predetermined elasticity, wherein the supporter is spaced apart from the first suspension in a downwards direction and has a first end portion fixed to the frame, and the protrusion protrudes from the supporter towards the first suspension; and a second magnet accommodated in the protrusion and fixed to a lower surface of the second suspension.

Abstract: Provided is an apparatus and method for performing tertiary treatment of sewage based on porous filtering media. The apparatus for performing tertiary treatment of sewage based on porous filtering media includes a reaction tank for receiving effluent wastewater from a primary settling tank; and porous filtering media, which is located in the reaction tank and has a predetermined size of surface area and opening, for settling suspension in the effluent wastewater and removing organic matter and nutritive salts included in the suspension.

Abstract: Provided is an apparatus and method for performing tertiary treatment of sewage based on porous filtering media. The apparatus for performing tertiary treatment of sewage based on porous filtering media includes a reaction tank for receiving effluent wastewater from a primary settling tank; and porous filtering media, which is located in the reaction tank and has a predetermined size of surface area and opening, for settling suspension in the effluent wastewater and removing organic matter and nutritive salts included in the suspension.

Abstract: A method for extracting sodium elements from a glass surface is provided. The method includes extracting sodium elements from the surface of glass by etching the Na containing glass substrate with strong acid. The corrosion of the glass surface can be prevented at low cost, without a change in the characteristics of glass materials. Also, an adhesive strength between glass and metal can be improved. Further, change in the characteristics of a deposited layer due to diffusion of sodium elements can be prevented.

Abstract: An adhesive strength increasing method which does not need a bulky apparatus such as an ion implantation apparatus and prevent the characteristic of a material from being degraded by using a high level current ion of a low level energy, thus increasing an adhesive strength between a metal thin film and a glass substrate. In the present invention, a metal is deposited on a substrate an inert gas or a reactive gas having a predetermined energy is irradiatd to the deposited metal thin film, and then the metal thin film is sealed, thus increasing an adhesive strength between a metal thin film and a glass substrate.

Abstract: An improved thin film deposition apparatus which is capable of easily increasing the temperature of a crucible using low electric power, for thus reducing the maintenance cost of the system, and fabricating a thin film having a constant characteristic by using a lower current density variation based on a distance, for thus increasing the reliability of a thin film device, whereby it is possible to fabricate a more compact product and to more easily maintain the system, which includes a heat shielding cylindrical chamber, a cylindrical chamber located within the heat shielding cylindrical chamber, a crucible section including a crucible and a heat filament arranged at an inner and lower portion of the cylindrical chamber, an ionization section having an anode and an ionization filament arranged in an upper portion inside the cylindrical chamber, and a magnet for enhancing an ionization efficiency, an upper and lower filament support for supporting the heater filament and the ionization filament, an upper and l