Abstract: Disclosed is an automatic transfer switch. According to the exemplary embodiment of the present invention, the automatic transfer switch alternatively supplying power from a commercial power terminal and an emergency power terminal to load terminals by moving a pair of movable contactors, wherein at least one of the pair of movable contactors are integrally formed with the commercial power terminal or the emergency power terminal through a wire made of a flexible material.

Abstract: In general terms, embodiments of the present invention relate to an overvoltage protection circuit. In some embodiments, the overvoltage protection circuit includes: (a) an input receiving node configured to receive an input voltage; (b) an input transmitting node; (c) an input switch formed between the input receiving node and the input transmitting node, and configured to selectively electrically connect the input receiving node to the input transmitting node based on a switch control signal, where the input switch is configured to cut off an electrical connection between the input receiving node and the input transmitting node when the switch control signal is in an inactive state (e.g., a logic low state “L”); and (d) a control signal generation block configured to sense a transmission voltage of the input transmitting node and generate the switch control signal in the inactive state when the transmission voltage rises to a reference voltage or higher.

Abstract: Disclosed is a multiple-input multiple-output (MIMO) system including a transmitting end and a receiving end, wherein the transmitting end includes: a hierarchical codebook in which at least one base codebook is designated as the upper matrix and a child codebook generated based on a chordal distance between respective codewords configuring the base codebook is designated as the lower matrix; a scheduler configured to receive channel state information from the receiving end and select precoding matrices from the hierarchical codebook based on the channel state information; and a precoder configured to apply the precoding matrices selected in the scheduler to data to be transmitted to the receiving end and transmit the selected precoding matrices through a plurality of antennas.

Abstract: A cleaning robot capable of cleaning a water tank in an unmanned manner and an underwater sediment cleaning apparatus and method are provided. The cleaning robot includes a body put into a water tank, a driver supporting the body and moving the body, a suction part arranged in front of the body and sucking contaminated water containing sediment in the water tank, and a tilting part supported by the body to support the suction part and rotating the suction part on an axis corresponding to the direction across the moving direction of the body.

Abstract: A hybrid material including graphene and iron oxide, a method of manufacturing the same, and an apparatus for treating waste water using the same are provided. A hybrid material having magnetic properties and high dispersibility and including graphene and iron oxide may be effectively used for removing a heavy metal in waste water.

Abstract: An magnetic resonance imaging (MRI) device includes at least one amplifier, a control module which controls an operating module of the at least one amplifier, a back-up control module, a determination unit for determining whether the control module is operating normally, and a switching module for performing a switching operation to switch operations of the control module to the at least one back-up control module in the event of abnormal operation of the control module.

Abstract: Disclosed is an automatic transfer switch. According to the exemplary embodiment of the present invention, the automatic transfer switch alternatively supplying power from a commercial power terminal and an emergency power terminal to load terminals by moving a pair of movable contactors, wherein at least one of the pair of movable contactors are integrally formed with the commercial power terminal or the emergency power terminal through a wire made of a flexible material.

Abstract: Methods of forming a superconducting wire are provided. The method may include dissolving a superconducting material in an acid not including fluorine to form a superconducting precursor solution, providing the superconducting precursor solution on a substrate to form a superconducting precursor layer, and controlling an oxygen partial pressure of a processing chamber provided with the substrate and/or a temperature of the substrate in order that the superconducting precursor layer partially have a liquid phase, thereby forming an epitaxial superconducting layer on the substrate.

Abstract: A remote controller (100) and a system and method for remotely controlling a digital TV are disclosed. A memory card (110) is mounted in the remote controller (100), and the remote controller (100) receives video or audio data inputted from the memory card (110) and transmits the received data to a TV body (300). The remote controller (100) receives the video or audio data from the memory card (110) modulates the received data into a wireless signal and transmits the modulated wireless signal, and the TV body (300) receives the wireless signal transmitted from the remote controller (100), demodulates the received wireless signal into the video or audio data and reproduces the demodulated video or audio data. Therefore, the user can remotely control the TV body (300) without personally inserting the memory card (110) into the TV body (300). As a result, the user does not need to move to a place where the TV body (300) is located resulting in convenience in use.

Abstract: A method for generating a hybrid codebook for a Multi-User Multiple-input Multiple-Output (MU-MIMO) system includes the steps of: generating a parent matrix set including a plurality of M×M unitary matrices when the number of transmitter antennas is M; and generating a child matrix set dependent on the parent matrix set by using training vectors included in a random training set and each column for each unitary matrix of the parent matrix set as an initial vector codebook.

Abstract: A method for manufacturing a printed circuit board, in which an oxidant capable of polymerizing conductive polymers is selectively marked on a board using imprinting, and the monomer of a conductive polymer is filled in the selected pattern and polymerized, to provide a conductive polymer wiring pattern. With the method for manufacturing a printed circuit board, a printed circuit board can be given finer wiring widths to allow a highly integrated, highly efficient printed circuit board. Thus, a printed circuit board (PCB) or a flexible printed circuit boards (FPCB) can be manufactured that is applicable to industrial, clerical, and domestic electric electronic products, by forming conductive polymer wiring using imprinting.

Abstract: The present invention provides a network-based location measurement method using a pCELL database, comprising the steps of establishing a pCELL database in which a location measurement service target area is divided into lattices each having a predetermined size; continuously determining whether a request for location measurement occurs by a service subscriber; and, when the request for location measurement is generated, comparing fundamental information received from a mobile terminal with the pCELL database, determining a matching pCELL, and reporting the pCELL to the service requester. Furthermore, the present invention is constructed to periodically update a initially established pCELL database using the results of A-GPS-based location measurement and reflect variation in BTSs within a mobile communication network to the pCELL database, thereby always maintaining the optimal database.

Abstract: Disclosed are a nanocrater catalyst in metal nanoparticles with a nanocrater form of hole structure in center of the catalyst which is useful for manufacturing nano-sized materials and/or articles with desired structure and characteristics, a preparation method thereof including a plasma etching and chemical etching process (“PTCE process”), and nano-sized materials and/or articles manufactured by using the nanocrater catalyst in metal nanoparticles.

Abstract: A fan includes a main plate and at least one or more blades connected to the main plate. At least a portion of a boundary portion between the main plate and a pressure surface of the blade is provided as a curved boundary portion such that the blade and the main plate are connected to each other at a curvature.

Abstract: A semiconductor memory apparatus includes: a first data counting unit configured to count respective programming levels of a plurality of input data and output a plurality of first data counting codes having a code value corresponding to the number of respective programming levels; a data read unit configured to sense data stored in a memory block having the plurality of input data programmed therein, based on a voltage level of a plurality of read bias signals, and output the sensed result as a plurality of output data; a second data counting unit configured to count respective programming levels of the plurality of output data and output a plurality of second data counting codes having a code value corresponding to the number of respective programming levels; a read bias control unit configured to compare the plurality of first data counting codes with the plurality of second data counting codes and output a bias control code having a code value corresponding to the comparison result; and a read bias genera

Abstract: Provided is a hot-dip galvanized steel sheet having excellent plating qualities, plating adhesion and spot weldability, in which an alloy phase is formed at the interface between a base steel sheet and a galvanized layer, and a manufacturing method thereof.

Abstract: TiO2-xNx (0.01?x?0.2) nanotubes and a method for preparing the same are disclosed. More particularly, TiO2-xNx (0.01?x?0.2) nanotubes doped with nitrogen atoms by treating TiO2 nanotubes through nitrogen plasma to partially substitute oxygen portion of TiO2 nanotube with nitrogen, and a method for preparing the same are disclosed. The TiO2-xNx (0.01?x?0.2) nanotube of the present invention is prepared by doping nitrogen on a TiO2 nanotube to control an electronic structure and reduce a band gap of the TiO2 nanotube, so that the prepared TiO2-xNx (0.01?x?0.2) nanotube exhibits improved conductivity and extended light absorption range from a UV ray area up to a visible light area, thus having more enhanced applicable performance in optical and/or electrochemical aspects.

Abstract: Disclosed are a nanocrater catalyst in metal nanoparticles with a nanocrater form of hole structure in center of the catalyst which is useful for manufacturing nano-sized materials and/or articles with desired structure and characteristics, a preparation method thereof including a plasma etching and chemical etching process (“PTCE process”), and nano-sized materials and/or articles manufactured by using the nanocrater catalyst in metal nanoparticles.

Abstract: An apparatus and method for charging of a battery in a portable terminal. The apparatus includes a charge management unit and a controller. The charge management unit determines a predefined charge threshold value and a battery voltage, compares the battery voltage with the threshold value, and determines if the battery voltage is suitable for normal operation of the portable terminal. If it is determined by the charge management unit that the battery voltage is not suitable for normal operation, the controller sends a power supply request to an external device.

Abstract: An air conditioner is disclosed which includes a case including an external air inlet opening formed in a side of the case, a heat exchanger provided in the case, and a guide part which guides external air which enters the case through the external air inlet opening into an interior of the heat exchanger.