Abstract: The present invention relates to a plane heating element which is supplied with power to generate heat. The plane heating element may include a support layer made of ceramic glass, a heat-generating layer which is formed by printing heat-generating paste on the upper surface of the support layer, and an insulating layer which is formed by applying insulating paste on the upper surface of the heat-generating layer. The heat generating paste may be dried and plasticized, and receives predetermined power to generate heat. The insulating paste may be dried and plasticized and may be configured to insulate the and prevent oxidation of the heat-generating layer. The present invention provides a strong adhesion with respect to a glass substrate and makes it possible to increase temperature up to a target level in a short time, and thus can be used as an effective printing method in various electric and electronic product fields.

Abstract: A calibration apparatus and method for supporting a Relay Station (RS) in a multiple antenna communication system are provided. The calibration method in the multiple antenna communication system which supports the RS includes, when a modem stage sends a downlink calibration signal, receiving, at a calibrator, the downlink calibration signal and estimating a downlink path channel, when the calibrator sends an uplink calibration signal, receiving, at the modem stage, the uplink calibration signal and estimating an uplink path channel, determining, at the modem stage, calibration coefficients per path not to generate a phase and amplitude difference with respect to the estimated uplink path channel and the estimated downlink path channel, and applying the calibration coefficients per path to corresponding antennas respectively.

Abstract: A metal nanowire including gold nanoclusters on the surface thereof for binding a target material and a method of binding the target material to the metal nanowire are provided.

Abstract: A base station is capable of performing 4-beamforming using Radio Units (RU), each having two paths in a wireless communication system. The base station includes a Digital Unit (DU), a first RU, and a second RU. The DU performs a mutual conversion function between an information bit line and a digital signal, calculates beamforming coefficients for 4-beamforming, and performs the 4-beamforming using the beamforming coefficients. The first RU has two Radio Frequency (RF) paths, extracts a clock signal from a digital signal from the DU, and provides the clock signal to the second RU. The second RU has two RF paths and operates according to the clock signal provided from the first RU.

Abstract: A structure is provided for protecting a Radio Frequency Remote Head (RRH). The structure includes a solar head and a solar body. An upper side of the solar head is sloped to prevent an inflow of rainwater and has at least one solar panel, and a lower side thereof has at least one round cable hole surrounded by a rubber material. The solar body is situated on a lower end of the solar head and includes a plurality of solar panels, a side of each of which is sloped to prevent an inflow of rainwater and is openable upward. An upper end of the solar body has an air outlet formed to exhaust air, and a lower end thereof has an air inlet formed to receive air. The air outlet and the air inlet each have a plurality of supports arranged at specific intervals and connected by a protection net.

Abstract: The present invention is related to an electrode and a method for preparing the same, and is particularly related to an electrode that has an intricate structure of active material layer, conductive material layer, or mixture layer of active material and conductive material that displays superior electrochemical properties despite being thin, and a method for preparing an electrode using the coating method of SIC.

Abstract: A base station is capable of performing 4-beamforming using Radio Units (RU), each having two paths in a wireless communication system. The base station includes a Digital Unit (DU), a first RU, and a second RU. The DU performs a mutual conversion function between an information bit line and a digital signal, calculates beamforming coefficients for 4-beamforming, and performs the 4-beamforming using the beamforming coefficients. The first RU has two Radio Frequency (RF) paths, extracts a clock signal from a digital signal from the DU, and provides the clock signal to the second RU. The second RU has two RF paths and operates according to the clock signal provided from the first RU.

Abstract: A calibration apparatus and method for supporting a Relay Station (RS) in a multiple antenna communication system are provided. The calibration method in the multiple antenna communication system which supports the RS includes, when a modem stage sends a downlink calibration signal, receiving, at a calibrator, the downlink calibration signal and estimating a downlink path channel, when the calibrator sends an uplink calibration signal, receiving, at the modem stage, the uplink calibration signal and estimating an uplink path channel, determining, at the modem stage, calibration coefficients per path not to generate a phase and amplitude difference with respect to the estimated uplink path channel and the estimated downlink path channel, and applying the calibration coefficients per path to corresponding antennas respectively.

Abstract: Duplex supporting apparatus and method in a base station system which supports a multi-antenna are provided. The duplex supporting apparatus in a base station system which supports K(?1)-ary sectors and M(?1)-ary antennas per sector, includes a plurality of channel cards for generating M-ary data to be sent to the M-ary antennas, exchanging part of the M-ary data with other channel cards, constituting a frame with part of the M-ary data and data received from the other channel cards, and providing the generated frame to a corresponding Radio Frequency (RF) module; and a plurality of RF modules for extracting the M-ary data from a frame of a corresponding channel card among the channel cards, RF-processing the extracted M-ary data, and feeding the processed data to original sectors/antennas.

Abstract: Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same that can improve cycle-life characteristics and storage characteristics at a high temperature by improving structural safety characteristics and electrochemical characteristics, by forming an overlayer comprising an oxide glass phase on the surface of the positive active material, and a lithium secondary battery comprising the positive active material.

Abstract: This invention relates to complex lithium metal oxides, which are cathode active materials of a lithium or lithium ion secondary battery with enhanced cycle life and safety, and a process for preparation thereof. The core particles are complex lithium metal oxides capable of absorbing, storing and emitting lithium ions, and a coating layer comprised of amorphous complex lithium cobalt oxides that are formed on the surface of the core particle, which is structurally stable and inactive with electrolytes. Because the amorphous complex lithium cobalt oxides are inactive with electrolytes, the oxides stabilize the surface structure of the complex lithium metal oxide and improve on high temperature storage properties, as well as safety and cycle life.

Abstract: Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same that can improve cycle-life characteristics and storage characteristics at a high temperature by improving structural safety characteristics and electrochemical characteristics, by forming an overlayer comprising an oxide glass phase on the surface of the positive active material, and a lithium secondary battery comprising the positive active material.

Abstract: Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same, in particular a positive active material and preparation method of the same that can improve cycle-life characteristics at a high temperature and room temperature, and storage characteristics at a high temperature. The present invention has the effect of providing a positive active material and preparation method of the same that can improve cycle-life characteristics at room temperature and at a high temperature, and storage characteristics at a high temperature, by coating the surface of the lithium manganese spinel oxide particles with a lithium metal complex oxide.

Abstract: The present invention is related to an electrode and a method for preparing the same, and is particularly related to an electrode that has an intricate structure of active material layer, conductive material layer, or mixture layer of active material and conductive material that displays superior electrochemical properties despite being thin, and a method for preparing an electrode using the coating method of SIC.

Abstract: The present invention relates to a method for preparing a lithium manganese complex oxide Li1+xMn2?xO4 (0?x?0.12) used as a cathode active material of a lithium or lithium ion secondary battery. The present invention provides a method for preparing a manganese compound comprising the step of simultaneously applying a mechanical force and heat energy to a manganese compound to remove defects present in particles of the manganese compound and to control the aggregation of particles and the shape of the aggregated particles, a method for preparing a lithium manganese complex oxide with a spinel structure using the manganese compound prepared by the above method as a raw material, and a lithium or lithium ion secondary battery using the lithium manganese complex oxide with a spinel structure prepared by the above method as a cathode active material.

Abstract: This invention relates to complex lithium metal oxides, which are cathode active materials of a lithium or lithium ion secondary battery with enhanced cycle life and safety, and a process for preparation thereof. The core particles are complex lithium metal oxides capable of absorbing, storing and emitting lithium ions, and a coating layer comprised of amorphous complex lithium cobalt oxides that are formed on the surface of the core particle, which is structurally stable and inactive with electrolytes. Because the amorphous complex lithium cobalt oxides are inactive with electrolytes, the oxides stabilize the surface structure of the complex lithium metal oxide and improve on high temperature storage properties, as well as safety and cycle life.

Abstract: The present invention relates to an anode material for a battery and a preparation method thereof, and particularly to surface-treated carbon that has a large capacity and superior room temperature and high temperature cycle life properties, and that comprises a carbon core and a coating layer containing a fluorine-type organometal salt, and thus can be used as an anode material for a battery; and a preparation method thereof. A lithium or lithium ion secondary battery comprising the surface-treated carbon as an anode material has improved high temperature cycle life properties and stability.

Abstract: Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same that can improve cycle-life characteristics and storage characteristics at a high temperature by improving structural safety characteristics and electrochemical characteristics, by forming an overlayer comprising an oxide glass phase on the surface of the positive active material, and a lithium secondary battery comprising the positive active material.

Abstract: Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same, in particular a positive active material and preparation method of the same that can improve cycle-life characteristics at a high temperature and room temperature, and storage characteristics at a high temperature.

Abstract: An asynchronous transfer mode (ATM) switching system includes a cell switching assembly having at least one switch port for transferring an ATM cell, and a subscriber board having a plurality of subscriber ports. A cell processing apparatus for use in the ATM switching system includes a look-up memory for storing control information for determining whether to copy an ATM cell from the switch port, and a cell copy controller for copying the ATM cell from the switch port and transferring ATM cells copied to the subscriber ports according to the control information stored in the look-up memory. If the ATM cell is a point-to-point communication cell, the ATM switching system translates the header included in the cell according to control information and transfers the ATM cell having the translated header to at least one of the subscriber ports.