Abstract: An exemplary embodiment of the present invention provides a method for anti-wetting metallic surfaces. A metallic object is introduced to an electrochemical solution. A cathode is introduced to the electrochemical solution, and an anode is attached to the metallic object. An electric potential between the cathode and anode is applied, such that selective electrochemical etching of the surface of the metallic object occurs. The selective etching etches grain boundaries at the surface of the metallic object, and the grain boundaries define grain faces.

Abstract: A display device includes a display panel including data lines, scan lines, and pixels connecting with the data lines and the scan lines, a scan driver configured to supply scan signals to the scan lines, a source drive integrated circuit (“IC”) configured to convert digital video data into data voltages and to supply the data voltages to the data lines, and a timing controller configured to transmit the digital video data to the source drive IC and to control driving timing of the scan driver and the source drive IC, in which a transmitter and a receiver of the source drive IC are connected via a pair of transmission lines to a transmitter and a receiver of the timing controller.

Abstract: A pixel array and an organic light emitting display device including the same, can display an image with uniform luminance by compensating for a variation in threshold voltage/mobility of a driving transistor for each pixel and compensating for a change in efficiency due to degradation of an organic light emitting diode. A first pixel among the pixel array includes an organic light emitting diode; a pixel circuit positioned among an anode electrode of the organic light emitting diode, a first scan line and a first data line through which a data signal is supplied to the first pixel, and controlling current flowing in the organic light emitting diode; and a switching element controlling the coupling between a second data line through which a data signal is supplied to a second pixel of the plurality of pixels and the anode electrode of the organic light emitting diode.

Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). An electronic device is provided in a wireless communication system. The device comprises a plurality of antenna sets; a plurality of antenna elements configuring the plurality of antenna sets; an RF transceiver including a plurality of switches for selecting the plurality of antenna elements and a plurality of phase shifters for shifting the phase of a signal transmitted/received through the plurality of antenna elements; and a control unit for determining a beam forming direction and the phase of the signal by simultaneously controlling the plurality of switches and the plurality of phase shifters according to a beambook.

Abstract: When a catechin-free tea water according to the present invention is contained in a cosmetic or pharmaceutical composition, enzymes are inactivated and catechin contained in tea leaves is removed by steaming unprocessed raw tea leaves, thereby preventing the oxidation of tea water. Therefore, a composition containing the tea water according to the present invention can prevent offensive odor generation or discoloration of the composition, thereby enabling the stable use thereof in various industrial fields such as food, cosmetics and medicine. In addition, plenty of skin helpful ingredients, contained in raw tea leaves, can be contained, and thus excellent skin barrier function recovery or skin moisturization effects can be provided.

Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). An apparatus and a method for performing beamforming by using an antenna array in a wireless communication system are provided. The apparatus includes at least one antenna array comprising antenna elements, a control unit configured to determine a number of beams to be formed through the at least one antenna array, and a communication unit configured to adjust paths associated with the antenna elements in order to configure as many antenna subsets as the number of the beams, and to form at least one beam through at least one antenna subset configured from the at least one antenna array.

Abstract: There are disclosed a DC-DC converter and an organic light emitting display including the same. The DC-DC converter includes a first voltage generator that has an inductor and a plurality of transistors, and converts an input voltage into a first voltage and outputs the first voltage to a first output terminal. The DC-DC converter also includes a controller that controls driving of the first voltage generator by supplying a first driving pulse to each transistor of the first voltage generator. In the DC-DC converter, the amplitude of the first driving pulse is adjustable. Accordingly, it is possible to provide a DC-DC converter and an organic light emitting display including the same, which can achieve high power conversion efficiency by change a driving pulse used in a DC-DC converter.

Abstract: The present invention relates to a method and an apparatus for direct current offset calibration of a direct conversion receiver, a Direct Current (DC) offset calibration apparatus of a direct conversion receiver includes a plurality of variable gain amplifiers for amplifying an input signal based on a gain control value, a DC offset monitoring unit for monitoring a DC offset for an output signal of the plurality of variable gain amplifiers, a plurality of variable Digital to Analog Converters (DACs) for controlling a current applied to each of the plurality of variable gain amplifiers according to a current control code, and a DC offset cancellation unit for determining a current control code set which minimizes the DC offset value per preset gain control value, and thus the DC offset can be precisely cancelled without being affected by external factors such as a signal modulation method and heat and performance degradation of the receiver can be prevented.

Abstract: A pixel array and an organic light emitting display device including the same, can display an image with uniform luminance by compensating for a variation in threshold voltage/mobility of a driving transistor for each pixel and compensating for a change in efficiency due to degradation of an organic light emitting diode. A first pixel among the pixel array includes an organic light emitting diode; a pixel circuit positioned among an anode electrode of the organic light emitting diode, a first scan line and a first data line through which a data signal is supplied to the first pixel, and controlling current flowing in the organic light emitting diode; and a switching element controlling the coupling between a second data line through which a data signal is supplied to a second pixel of the plurality of pixels and the anode electrode of the organic light emitting diode.

Abstract: Provided are a polymer and a polymer actuator including the polymer. The polymer is cross-linked by a cross-linking agent. When the polymer is used in the polymer actuator, the polymer actuator shows a high strain and may be stably operated at high temperatures.

Abstract: A pixel array and an organic light emitting display device including the same, can display an image with uniform luminance by compensating for a variation in threshold voltage/mobility of a driving transistor for each pixel and compensating for a change in efficiency due to degradation of an organic light emitting diode. A first pixel among the pixel array includes an organic light emitting diode; a pixel circuit positioned among an anode electrode of the organic light emitting diode, a first scan line and a first data line through which a data signal is supplied to the first pixel, and controlling current flowing in the organic light emitting diode; and a switching element controlling the coupling between a second data line through which a data signal is supplied to a second pixel of the plurality of pixels and the anode electrode of the organic light emitting diode.

Abstract: A turbine wheel for a turbine charger includes a hub and a set of wheel blades configured to be arranged around the hub. A wheel blade has a section structure of an air-foil which has a pressure side and a suction side. The turbine wheel is capable of remarkably increasing an output of a vehicle engine by increasing a rotation power of the turbine wheel to increase a compression rate of sucked air.

Abstract: A reducing agent pyrolysis system for a selective catalytic reduction apparatus includes an elbow duct that is installed on an exhaust duct at a front end of a reactor, allows exhaust gas to flow into the elbow duct, and allows the inflow exhaust gas to be discharged toward the reactor. An inner pipe unit is disposed in the elbow duct, and allows a part of the exhaust gas to flow into and be discharged from the inner pipe unit. A heating device is installed in the inner pipe unit, and heats the exhaust gas flowing into the inner pipe unit. A nozzle is installed in the inner pipe unit, is disposed at a rear end of the heating device based on a flow of the exhaust gas, and injects a reducing agent into the inner pipe unit.

Abstract: An information sharing method that includes receiving additional information about content on a webpage, inputting the additional information into a message including a Uniform Resource Identifier (URI) of the webpage, specifying a destination of the message including the URI of the webpage and the additional information, and transmitting the message to the destination.

Abstract: Disclosed are a canister type thruster for implementing smooth upward/downward movement and improving productivity and an installation method thereof The canister type thruster includes a guide module for guiding upward/downward movement of a canister. The guide module includes a guide unit that is installed on an inner surface of a trunk so as to support a rack installed on an outer surface of the canister in parallel with a lifting direction to guide the upward/downward movement of the canister; a sliding pad that relieves an impact or a friction applied to the guide unit; and a support protrusion that is provided between the guide unit and the sliding pad to support the sliding pad.

Abstract: An electronic device for beamforming and a method thereof in a wireless communication system are provided. The electronic device includes a plurality of antennas. The electronic device also includes a plurality of transmitter and receiver switches connected to the antennas and configured to select a plurality of transmission paths and a plurality of reception paths. The electronic device further includes a plurality of first Phase Shifters (P/Ss) configured to shift a phase of Radio Frequency (RF) signals received via the antennas and the transmitter and receiver switches. The electronic device includes a combiner configured to combine the phase-shifted RF signals to one RF signal. The electronic device also includes a quadrature signal generator configured to generate a quadrature signal. The electronic device further includes a down-mixer configured to convert the quadrature signal and the combined RF signal to a first baseband signal and configured to output the first baseband signal to a modem.

Abstract: Alignment systems employing actuators provide relative displacement between lid assemblies of process chambers and substrates, and related methods are disclosed. A process chamber includes chamber walls defining a process volume in which a substrate may be placed and the walls support a lid assembly of the process chamber. The lid assembly contains at least one of an energy source and a process gas dispenser. Moreover, an alignment system may include at least one each of a bracket, an interface member, and an actuator. By attaching the bracket to the chamber wall and securing the interface member to the lid assembly, the actuator may communicate with the bracket and the interface member to provide relative displacement between the chamber wall and the lid assembly. In this manner, the lid assembly may be positioned relative to the substrate to improve process uniformity across the substrate within the process chamber.

Abstract: Apparatus and method for displaying information as a background of a user interface. In order to display the information as the background of a user interface, information such as user interest information may be received from a user. Based on the received information, contents may be retrieved. Then, the background of the user interface may be formed with at least one image. Each image of the at least one image may represent a respective one of the retrieved contents. The user interface having the background formed with the at least one image may be displayed.

Abstract: Disclosed herein are a method and an apparatus for creating an avatar. The method for creating an avatar according to an exemplary embodiment of the present invention includes receiving information on an appearance of an object to be created into an avatar; generating avatar appearance type metadata using the information on the appearance; creating the avatar using the avatar appearance type metadata, wherein the avatar appearance type metadata include at least one of skin information, hair information, nails information, and teeth information. The exemplary embodiments of the present invention can create the avatar capable of facilitating the differentiation with another avatar while more approximating the reality, by adding more detailed data in addition to the data for the existing appearance so as to generate the avatar.

Abstract: The present invention relates to a haptic feedback screen using a piezoelectric polymer. The present invention provides a haptic feedback screen using a piezoelectric polymer, which comprises: a piezoelectric polymer layer made of a transparent piezoelectric polymer material; an upper electrode and a lower electrode disposed on an upper surface of and under a lower surface of the piezoelectric polymer layer, respectively, the upper electrode and the lower electrode being made of a transparent material; a transparent cover disposed on the upper electrode; and a transparent substrate disposed under the lower electrode, wherein the piezoelectric polymer layer generates vibration in a touch area by a power applied between the upper electrode and the lower electrode when a touch occurs on the transparent cover. The present invention can implement an overall or partial haptic feedback function by applying a transparent piezoelectric polymer material to a touch screen.