Abstract: According to at least one example embodiment, a substrate treating apparatus includes a substrate support structure including a spin head, the substrate support structure configured to support a substrate, and rotate the substrate, at least one treating liquid recovery container configured to recover at least one substrate treating liquid, and a discharging device including a first nozzle and a second nozzle, the first nozzle configured to discharge a chemical onto the substrate, and the second nozzle configured to discharge deionized water onto the substrate, wherein the first nozzle includes a surface pattern configured to provide roughness on an inner surface of the first nozzle.

Abstract: Provided is a method for preparing an oligomer including: supplying a monomer stream and a solvent stream to a reactor to perform an oligomerization reaction to prepare a reaction product; supplying a discharge stream from the reactor including the reaction product to a separation device and supplying a lower discharge stream from the separation device to a settling tank; adding an organic flocculant to the settling tank to settle and remove a polymer and supplying the lower discharge stream from the separation device from which the polymer is removed to a high boiling point separation column; and removing a high boiling point material from the lower portion in the high boiling point separation column and supplying an upper discharge stream including an oligomer to a solvent separation column.

Abstract: A strain sensor may have a conductive elastic yarn including a first fiber having a predetermined length and a shape of a fiber yarn and a second fiber having electrical conductivity and a sheet shape. The strain sensor may have a pair of wiring members electrically connected to both ends of the conductive elastic yarn. The conductive elastic yarn, with the second fiber wrapped around the first fiber, is twisted in a coil shape.

Abstract: An integrated circuit may include a first active region and a second active region, and the first and second active regions may extend on a substrate in a first horizontal direction in parallel to each other and have different conductivity types from each other. A first gate line may extend in a second horizontal direction crossing the first horizontal direction, and may form a first transistor with the first active region. The first transistor may include a gate to which a first input signal is applied. The first gate line may include a first partial gate line that overlaps the first active region in a perpendicular direction and that has an end on a region between the first and second active regions.

Abstract: Provided is a method of producing an oligomer, the method including: supplying a monomer stream and a solvent stream to a reactor to perform an oligomerization reaction to produce a reaction product; supplying a discharge stream of the reactor to a separation device, and supplying an upper discharge stream of the separation device including an unreacted monomer to the reactor and supplying a lower discharge stream of the separation device to a settling tank; settling a polymer in the settling tank and removing the polymer, and supplying the lower discharge stream of the separation device from which the polymer is removed to a high-boiling point separation column; removing a high-boiling point material from a lower discharge stream of the high-boiling point separation column and supplying an upper discharge stream of the high-boiling point separation column including an oligomer to a solvent separation column; and separating a solvent and the oligomer in the solvent separation column.

Abstract: A portable computer operates by an operating system (OS) corresponding to a predetermined language, and includes a keypad unit which includes a plurality of input keys and has a key array corresponding to a plurality of languages, a system unit which operates according to at least one key value, and a control unit which determines the language according to which the OS operates, and controls the system unit to operate according to the key value corresponding to an input key which is selected according to the key array corresponding to the language.

Abstract: A transmit antenna switching apparatus and method in a MIMO system are provided. The transmit antenna switching method includes determining modulation orders of users by using reception strengths of user signals with respect to each antenna; summing the determined modulation orders for each antenna; and determining an antenna having the greatest sum of the modulation orders as a transmit antenna. Accordingly, downlink performance can be remarkably improved by transmitting downlink frames through an optimal transmit antenna in accordance with channel environment.

Abstract: The present general inventive concept relates to a portable computer including a computer main body, a display main body coupled with the computer main body, a main board provided in the computer main body, a keyboard provided in the computer main body and disposed in parallel with the main board without overlapping with the main board, and an auxiliary memory provided in the computer main body and disposed in parallel with the main board and the keyboard without overlapping with the main board and the keyboard. Thus, the present general inventive concept provides a portable computer having an improved structure to minimize its thickness.

Abstract: A portable computer operates by an operating system (OS) corresponding to a predetermined language, and includes a keypad unit which includes a plurality of input keys and has a key array corresponding to a plurality of languages, a system unit which operates according to at least one key value, and a control unit which determines the language according to which the OS operates, and controls the system unit to operate according to the key value corresponding to an input key which is selected according to the key array corresponding to the language.

Abstract: A downlink channel scheduling method and apparatus for obtaining optimal system performance in a downlink of a wireless communication system using an orthogonal frequency division multiplexing (OFDM) scheme are provided. Terminals compute a plurality of channel capacities and search for a channel with a maximum capacity. The terminals send, to a base station (BS), feedback information including a channel number and a capacity value of the channel with the maximum capacity. The BS performs a first channel allocation process for allocating a channel with an optimal capacity to each terminal on the basis of the feedback information. The BS performs a second channel allocation process for allocating an adjacent channel to a corresponding terminal using the window bit when the terminal is not allocated a channel in the first channel allocation process.

Abstract: A computer system include an operation performing unit which performs at least one operation, a manipulation information producing unit which senses user's manipulation to produce direction information and motion amount information corresponding to an amount of motion in a direction corresponding to the direction information, a mode selection unit which inputs user's selection about a manipulation mode, and a controller which controls the operation performing unit based on the direction information which is produced by the manipulation information producing unit, or controls the operation performing unit based on the direction information and the motion amount information, according to the user's selection inputted through the mode selection unit.

Abstract: A transmit antenna switching apparatus and method in a MIMO system are provided. The transmit antenna switching method includes determining modulation orders of users by using reception strengths of user signals with respect to each antenna; summing the determined modulation orders for each antenna; and determining an antenna having the greatest sum of the modulation orders as a transmit antenna. Accordingly, downlink performance can be remarkably improved by transmitting downlink frames through an optimal transmit antenna in accordance with channel environment.

Abstract: The present general inventive concept relates to a portable computer including a computer main body, a display main body coupled with the computer main body, a main board provided in the computer main body, a keyboard provided in the computer main body and disposed in parallel with the main board without overlapping with the main board, and an auxiliary memory provided in the computer main body and disposed in parallel with the main board and the keyboard without overlapping with the main board and the keyboard. Thus, the present general inventive concept provides a portable computer having an improved structure to minimize its thickness.

Abstract: A downlink channel scheduling method and apparatus for obtaining optimal system performance in a downlink of a wireless communication system using an orthogonal frequency division multiplexing (OFDM) scheme are provided. Terminals compute a plurality of channel capacities and search for a channel with a maximum capacity. The terminals send, to a base station (BS), feedback information including a channel number and a capacity value of the channel with the maximum capacity. The BS performs a first channel allocation process for allocating a channel with an optimal capacity to each terminal on the basis of the feedback information. The BS performs a second channel allocation process for allocating an adjacent channel to a corresponding terminal using the window bit when the terminal is not allocated a channel in the first channel allocation process.

Abstract: A portable computer including a power switch, a power supply receiving electric power from one of a battery and an adapter; a system board mounted with a central processing unit and a plurality of hardware components, a microcomputer controlling the electric power from the power supply to be supplied to the system board when the power switch is on, and a battery power indicating part being operated by driving power of the microcomputer. The microcomputer detects remaining power of the battery according to whether the power switch is on when the electric power is supplied from the battery, and controls the battery power indicating part to indicate low power of the battery and the system board to not be turned on when the remaining power of the battery is lower than a predetermined voltage level.