Abstract: In the present invention, a chemical-vapor-deposition silicon carbide (SIC) bulk having an improved etching characteristic includes silicon carbide (SIC) manufactured by a chemical vapor deposition method using MTS (methyltrichlorosilane), hydrogen (H2), and nitrogen (N2) gases. The SIC manufactured by the chemical vapor deposition method is ?-SiC (3C-SiC), and 6H-SiC is present in the SIC manufactured by the chemical vapor deposition method. Five peaks having a reference code of 03-065-0360 and a peak having a reference code of 00-049-1428 are confirmed to be present from XRD analysis of the silicon carbide bulk, and a nitrogen concentration value is 4.0×1018 atoms/cm3 or more at a depth of 1,500 nm or more from the surface of the bulk, which is a metastable layer.

Abstract: In the present invention, a chemical-vapor-deposition silicon carbide (SIC) bulk having an improved etching characteristic includes silicon carbide (SIC) manufactured by a chemical vapor deposition method using MTS (methyltrichlorosilane), hydrogen (H2), and nitrogen (N2) gases. The SIC manufactured by the chemical vapor deposition method is ?-SiC (3C-SiC), and 6H-SiC is present in the SIC manufactured by the chemical vapor deposition method. Five peaks having a reference code of 03-065-0360 and a peak having a reference code of 00-049-1428 are confirmed to be present from XRD analysis of the silicon carbide bulk, and a nitrogen concentration value is 4.0×1018 atoms/cm3 or more at a depth of 1,500 nm or more from the surface of the bulk, which is a metastable layer.

Abstract: A pseudo satellite navigation signal repeating device includes a communication interface configured to collect orbit information of navigation satellites from a global navigation satellite information server through a network, a controller configured to calculate pseudo ranges from associated navigation satellites based on associated orbit information of the associated navigation satellites among orbit information of all the navigation satellites, a signal generator configured to generate global navigation satellite baseband digital signals of the associated navigation satellites based on the pseudo ranges, a signal converter configured to convert the navigation signals into analog baseband or intermediate frequency band signals, and a modulator configured to modulate the analog baseband or intermediate frequency band signals using a wireless carrier signal.

Abstract: The present invention relates to a system and method of remediating heavy metal-contaminated soil using dry disintegration in a particle size-selective manner. The system for remediating contaminated soil comprises: a pretreatment unit for pretreating the contaminated soil to control the water content and the size of the soil; a disintegration unit for disintegrating the pretreated soil into individual particles; a particle separation unit for separating the disintegrated particles a standard particle size; a heavy metal removal unit for peeling off the surface of the separated soil particles larger than the standard particle size using a surface friction force and an impact force to remove heavy metals in dry condition; and a separation and collection unit for separating and collecting the peeled-off surface from the soil particles.

Abstract: The present invention relates to a system and method of remediating heavy metal-contaminated soil using dry disintegration in a particle size-selective manner. The system for remediating contaminated soil comprises: a pretreatment unit for pretreating the contaminated soil to control the water content and the size of the soil; a disintegration unit for disintegrating the pretreated soil into individual particles; a particle separation unit for separating the disintegrated particles a standard particle size; a heavy metal removal unit for peeling off the surface of the separated soil particles larger than the standard particle size using a surface friction force and an impact force to remove heavy metals in dry condition; and a separation and collection unit for separating and collecting the peeled-off surface from the soil particles.

Abstract: A liquid crystal spraying apparatus is provided. In the apparatus, a liquid crystal vessel stores liquid crystal. A liquid crystal nozzle sprays the stored liquid crystal in the form of fine particles. A liquid crystal supplier supplies the stored liquid crystal to the liquid crystal nozzle. A gas supplier supplies gas causing the supplied liquid crystal to be sprayed in the form of fine particles. A gas tank supplies the gas to the gas supplier.

Abstract: A liquid crystal display (LCD) device compensates the resistance value for differing line lengths by forming resistance compensation holes in gate and data link lines, and obtains a constant current flowing in the gate and data lines, and includes an active region including a plurality of gate and data lines crossing each other to define a plurality of pixel regions, and a thin film transistor and a pixel electrode formed in each pixel region; gate link lines and a data link lines respectively extending from the gate lines and the data lines in the periphery of the active region; first resistance compensation holes in the gate link lines to compensate a resistance value of the gate link lines having different lengths; second resistance compensation holes in the data link lines to compensate a resistance value of the data link lines having different lengths; a gate pad at an end of the gate link lines; and a data pad at an end of the data link lines.

Abstract: Disclosed is a toner composition for an inorganic black matrix used for a color filter that is an important part of TFT-LCD by dispersing the fine particles of an inorganic pigment such as carbon black powder in a block copolymer solution having a high molecular weight and containing a pigment affinity group, and a preparation method thereof. It is the recent trend of the worldwide market to use a toner composition prepared by the pigment dispersion method in the manufacture of the organic black matrix. Thus the present invention provides a toner composition necessary to the manufacture of an organic black matrix and its preparation method using the pigment dispersion method, which involves mixing a block copolymer solution having a high molecular weight and containing a specific pigment affinity group, a inorganic pigment having electrical properties such as conductivity and optical density, a solvent and a dispersion adjuvant and applying optimized dispersion-mixing and dispersion equipment.

Abstract: Disclosed is a toner composition for an inorganic black matrix used for a color filter that is an important part of TFT-LCD by dispersing the fine particles of an inorganic pigment such as carbon black powder in a block copolymer solution having a high molecular weight and containing a pigment affinity group, and a preparation method thereof. It is the recent trend of the worldwide market to use a toner composition prepared by the pigment dispersion method in the manufacture of the organic black matrix. Thus the present invention provides a toner composition necessary to the manufacture of an organic black matrix and its preparation method using the pigment dispersion method, which involves mixing a block copolymer solution having a high molecular weight and containing a specific pigment affinity group, a inorganic pigment having electrical properties such as conductivity and optical density, a solvent and a dispersion adjuvant and applying optimized dispersion-mixing and dispersion equipment.