Abstract:
PURPOSE: A method for selectively extracting the web page information using structure analysis is provided to extract the specific information selectively by analyzing a structure of a web page provided from an information providing web site. CONSTITUTION: After collecting the web page from the information providing web site and searching a layout structure pattern of the collected web page, the unnecessary information is eliminated by performing the structure filtering to the web page as using the information for the layout structure pattern(306). A table structure of the filtered web page is analyzed and a template pattern having the most similar structure with the analyzed table structure is searched from the stored template patterns(310). The specific information is extracted from the filtered page by using the information of the searched template pattern(312).
Abstract:
PURPOSE: A wave stabilization apparatus of a multichannel laser source and a method and an optical comb generator and an injection locking apparatus are provided to stabilize one among modes of the optical comb generator phase-locked to a constant frequency period to an absolute frequency and make laser sources of all channels simultaneously corresponded to an ITU-T(International Telecommunication Union-Telecommunication sect) grid, thereby no existing a change of frequency. CONSTITUTION: A wave stabilization apparatus stabilizes an absolute frequency in an optical comb generator(120). An optical feedback to a laser source obtained from the optical comb generator(120) is performed by using a circulator(150). Thereafter, the laser source is passed through a multiplexer(140) inversely, divided into individual wavelengths and injected and locked to a multichannel laser source.
Abstract:
PURPOSE: A door opening and closing in all directions is provided to prevent the breakage of a doorknob, to use for a building effectively and to prevent an intrusion. CONSTITUTION: The door opening and closing in all directions comprises locking devices(A,A1,B,B1) projected out to the right/left and upper/lower sides of a door, and unlocking devices formed on each locking devices(A,A1,B,B1). The locking devices(A,A1,B,B1) contain long levers(11,12) having vertical elasticity by a spring(10) and a cam(20) to unlock the locking devices by rotating the cam(20) on a shaft(30).
Abstract:
입력광신호에대해유도라만산란을일으켜신호대 잡음비성능을향상시킨라만광섬유증폭기및 그사용방법에관해개시하고있다. 본발명의기본적인특징은광섬유증폭기에입력된신호의잡음출력을유도라만산란에의해다른장파장대로전환하여신호대 잡음비(SNR)를줄이는것이다. 본발명에의하면, 라만광섬유증폭기에서증폭되는신호의 SNR값을획기적으로향상시킬수 있다. 따라서, 이를사용하면장거리광전송에서도신호강도가낮은데이터를원활하게수신할수 있다.
Abstract:
PURPOSE: An apparatus and method for impregnating glass fiber, carbon fiber and shirt fiber capable of controlling the impregnating rate of resin by passing the combined fibers impregnated and coated with a resin liquid through a dice having a specified diameter are provided, which have an effect on strengthening a binding force of fibers and improving the quality. CONSTITUTION: This impregnating apparatus comprises a bobbin for winding combined fibers of glass fiber, carbon fiber and short fiber, a solvent impregnating part, a dice for controlling the liquid amount of an impregnated solvent, an impregnating part, a dice for controlling a resin liquid on the external and internal surface of fibers, a dice for controlling the amount of impregnated resin, a drying furnace and a winding bobbin. The impregnating method comprises passing combined fibers through a solvent liquid, removing air present between short fiber and controlling an impregnating rate.