Abstract: Disclosed is a random access method and device. A terminal generates a random number for a random access, and compares the random number and a setting value. When the random number is included in the setting value, the terminal transmits a preamble for a random access to a base station and attempts a random access.

Abstract: A base station infers a random access failure rate depending on a random access collision of terminals performing random access and controls a random access opportunity of a terminal that fails the random access by using the random access failure rate of each terminal. Also, information for the controlled random access opportunity is transmitted to the terminal that fails the random access.

Abstract: There are provided methods for manufacturing a semiconductor device including providing a substrate including a metal layer including an oxidized surface layer in a heat treatment chamber, generating hydrogen radicals within the heat treatment chamber and reducing the oxidized surface layer of the metal layer using the hydrogen radicals.

Abstract: Disclosed are a photosensitive resin composition including a composite dye that includes a red fluorescent dye re-emitting light at a 400 to 800 nm fluorescent wavelength; and a metal complex dye including at least one metal ion selected from Mg, Ni, Co, Zn, Cr, Pt, and Pd, and a color filter using the same.

Abstract: A variable display device includes a display panel; a joint plate installed at a rear surface of the display panel and including a plurality of plates each configured to be rotated by a hinge; and a driving system installed at a rear surface of the joint plate and rotating the plurality of plates with respect to a normal direction to the joint plate, wherein the display panel is variably driven in a flat mode having a flat surface or a curved mode having a curved surface by the joint plate and the driving system.

Abstract: A display apparatus including a glass plate detachably mounted to facilitate after-sales service (A/S) for repair or replacement of the glass plate and reduce A/S time is provided. The display apparatus includes a display which displays an image; a glass detachably mounted on the front surface of the display; and a pivotable holder provided at the glass to detachably mount the glass to the display.

Abstract: A lever type connector includes a housing capable of accommodating a terminal in an outlet; and levers connected onto both sides of the housing, respectively so as to pivot in a detachable direction of the terminal. In the housing, fixation protrusions, connected with the levers, are formed on both sides of the housing, respectively, and the respective fixation protrusions have different shapes.

Abstract: A variable display device includes a display panel; a joint plate installed at a rear surface of the display panel and including a plurality of plates each configured to be rotated by a hinge; and a driving system installed at a rear surface of the joint plate and rotating the plurality of plates with respect to a normal direction to the joint plate, wherein the display panel is variably driven in a flat mode having a flat surface or a curved mode having a curved surface by the joint plate and the driving system.

Abstract: The present invention relates to a otitis media diagnosis system using terahertz electromagnetic waves, which can diagnose otitis media using terahertz electromagnetic waves in a non-invasive manner, and which can accurately diagnose otitis media by acquiring images on the tympanic cavity using terahertz electromagnetic waves with excellent transmittance, and which can quickly and accurately divide exudative otitis media and suppurative otitis media using terahertz electromagnetic waves that are sensitive to moisture, and which is safe to a body using terahertz electromagnetic waves. The otitis media diagnosis system includes a terahertz probe including a generating unit for radiating terahertz electromagnetic waves from the outside of an ear toward a tympanic cavity and a detection unit for detecting the reflected terahertz electromagnetic waves reflected from the tympanic cavity.

Abstract: Provided herein is a line type lighting apparatus comprising: a line type lighting module having a power connecting plug formed on at least one surface of the module; and a track housing including a plurality of frames which are provided with accommodating space to which the lighting module may be coupled and which are connected in a longitudinal direction, a power plug for supplying power arranged in a position corresponding to the connecting plug of the lighting module in a longitudinal direction within the accommodating space, an insulating member which surrounds the power plug, and an opening groove which is formed on a surface facing the connecting plug of the lighting module in a longitudinal direction and which exposes the power plug, wherein the track housing includes an insertion groove which is formed at an end of at least one frame of one pair of frames adjacent to each other and which exposes the power plug, and a connecting piece configured to be inserted into the insertion groove and to electric

Abstract: A waterproofing agent composition comprises 100 parts by weight of the pine resin, 20 to 70 parts by weight of an expanded styrene resin, 1 to 10 parts by weight of a vinyl-based resin and 100 to 750 parts by weight of an organic solvent. The waterproofing agent composition is a liquid and exhibits superior adhesion to various materials, thus providing proofing characteristics, humidity resistance and permeability resistance to surfaces of various materials water. In addition, the waterproofing agent composition may provide heat insulation characteristics along with waterproofing characteristics, humidity resistance and permeability resistance to subjects or bases, thus being used for various purposes.

Abstract: A method for forming a stair-step structure in a substrate is provided. An organic mask is formed over the substrate. A hardmask with a top layer and sidewall layer is formed over the organic mask. The sidewall layer of the hard mask is removed while leaving the top layer of the hardmask. The organic mask is trimmed. The substrate is etched. The forming the hardmask, removing the sidewall layer, trimming the organic mask, and etching the substrate are repeated a plurality of times.

Abstract: In a method of a vertical memory device, insulation layers and sacrificial layers are alternately and repeatedly formed on a substrate. A hole is formed through the insulation layers and the sacrificial layers that expose a top surface of the substrate. Then, an interior portion of the hole may be enlarged. A semiconductor pattern is formed to partially fill the enlarged portion of the hole. A blocking layer, a charge storage layer and a tunnel insulation layer may be formed on a sidewall of the hole and the semiconductor pattern. Then, the tunnel insulation layer, the charge storage layer and the blocking layer are partially removed to expose a top surface of the semiconductor pattern. A channel is formed on the exposed top surface of the semiconductor pattern and the tunnel insulation layer. The sacrificial layers are replaced with gate electrodes.

Abstract: A lever type connector includes a housing capable of accommodating a terminal in an outlet; and levers connected onto both sides of the housing, respectively so as to pivot in a detachable direction of the terminal. In the housing, fixation protrusions, connected with the levers, are formed on both sides of the housing, respectively, and the respective fixation protrusions have different shapes.

Abstract: The invention relates to a polypeptide having one or more substitution at a position corresponding to position 339 or 376 of SEQ ID NO: 59, wherein the polypeptide is a member of the Major Facilitator Superfamily (MFS). In an embodiment, the substitution is at position corresponding to 376 and wherein the amino acid at that position is replaced by an amino acid that has a van der Waals volume of 80 to 138 ?3 and a side chain hydrophobicity of 10 to 100 ?tR.

Abstract: Methods for flow control in a network are disclosed. In a dual connectivity network environment where a master base station and a secondary base station exist, an operation method of a master base station may comprise transmitting a data frame including a plurality of data packets to a secondary base station; receiving, from the secondary base station, a delivery status frame requesting retransmission of error data packet among the plurality of data packets; and retransmitting the error data packet indicated by the delivery status frame to the secondary base station. Therefore, network performance can be enhanced.

Abstract: A frame conversion apparatus for converting a CAN frame into an Ethernet frame and a frame conversion method thereof, configured to efficiently convert CAN frame data into Ethernet frame data, to achieve high-speed and high-volume transmission.

Abstract: There are provided methods for manufacturing a semiconductor device including providing a substrate including a metal layer including an oxidized surface layer in a heat treatment chamber, generating hydrogen radicals within the heat treatment chamber and reducing the oxidized surface layer of the metal layer using the hydrogen radicals.

Abstract: A method for forming a stair-step structure in a substrate is provided. An organic mask is formed over the substrate. A hardmask with a top layer and sidewall layer is formed over the organic mask. The sidewall layer of the hard mask is removed while leaving the top layer of the hardmask. The organic mask is trimmed. The substrate is etched. The forming the hardmask, removing the sidewall layer, trimming the organic mask, and etching the substrate are repeated a plurality of times.

Abstract: Provided is a positive photosensitive resin composition that includes (A) a polybenzoxazole precursor including a first polybenzoxazole precursor including a repeating unit represented by Chemical Formula 1 and a repeating unit represented by Chemical Formula 2, and having a thermally polymerizable functional group at least one terminal end; (B) a photosensitive diazoquinone compound; (C) a silane compound; (D) a phenol compound; and (E) a solvent. A photosensitive resin film fabricated using the positive photosensitive resin composition is provided.