Abstract: One aspect of the present invention provides a polymer electrolyte membrane including: a porous substrate including a first part including a first polyolefin modified with a halogen-based compound, and a second part including a second polyolefin; and a halogen-based polymer electrolyte impregnated in pores of the porous substrate, wherein in the porous substrate, the first part and the second part constitute a discontinuous phase and a continuous phase, respectively, and a content of the halogen-based compound in the porous substrate is 0.5 to 10 wt %, and a method of manufacturing the same.

Abstract: Systems and methods for identifying a counterpart of a messenger. An example method includes receiving an action signal of a user from the outside by a communication unit. User information related to the user is read from a database. An initial message and a response message including an identification indicator for identifying the user is determined based on the user information. A messenger server is requested to open a conversation channel, in which the user is designated as a counterpart, to transmit the initial message and to output the response message by the communication unit. The response message is received by the communication unit. The identification indicator output in the received response message and specifying a person corresponding to the identification indicator is checked as the counterpart.

Abstract: An apparatus for saturating a buffer material includes a jig for fixing and supporting a buffer material to prevent an increase of a volume of the buffer material. The jig is provided to surround at least a portion of the buffer material. The apparatus further includes a case having a space in which the jig supporting the buffer material is accommodated, a supply unit configured to supply water vapor into the case to adjust a saturation level of the buffer material, and a control unit configured to control the supply unit to stop the supply of water vapor when the saturation level of the buffer material reaches a preset critical saturation level.

Abstract: A method and device for controlling a resonant inductor for implementing ZVS in a push-pull parallel resonant inverter is closed. The present disclosure provides A device comprising: a converter including a full-bridge circuit in which a first switch and a second switch form a first leg and a third switch and a fourth switch form a second leg and configured to convert a DC into an AC by turning on or off the switches; a resonant inductor circuit including a resonant inductor and a resonant switch connected in series and connected between two output nodes of the converter; a transmission coil connected in parallel with the resonant inductor circuit; and a controller configured to convert the DC into the AC by providing a switching timing for turning on or off the switches and control a switching timing of the resonant switch based on switching timings of the switches.

Abstract: A system for performing magnetic field communication is disclosed. According to one embodiment of the present disclosure, a system for performing magnetic field communication may include a first current mode power supply having a voltage and one or more inductors connected thereto; a power amplifier connected to the first current mode power supply; a first matching impedance unit including a first capacitor connected to the power amplifier; and a first magnetic field antenna including a coil and a resistor connected in parallel with the first matching impedance unit.

Abstract: Disclosed herein is to an angle-of-departure measurement technology that receives radio frequency signals transmitted from transmitting antennas and measures angular positions from the transmitting antennas with respect to the receiving antenna. A wireless receiver includes an IQ demodulator configured to perform IQ demodulation on signals received from the receiving antenna, a phase sample value can be calculated from a phase value of a ratio of I and Q signals, and a phase difference value between the plurality of transmitting antennas and the receiving antenna can be estimated from a phase sample value. An angular position of the wireless receiver can be calculated from the estimated phase difference value.

Abstract: The present invention relates to a tandem warhead including a precursor neutralizing an explosive reactive armor, which is an additional armor of tanks, without detonating it and a main warhead configured to destroy a main armor, and more particularly to a non-initiating tandem warhead with a precursor forming powder jet against the explosive reactive armor, the powder jet leaving behind no residue of the precursor jet to maximize the penetration capability of the main warhead jet.

Abstract: The present disclosure relates to a method and apparatus for performing multiple wireless charging. A method or performing wireless charging according to an embodiment of the present disclosure may comprise: identifying one or more receiving coils subject to wireless charging; setting a plurality of transmission frequencies based on a plurality of receiving coils being identified; and transmitting a wireless power transmission signal to the plurality of receiving coils using a plurality of transmitting coils connected to one inverter. Herein, a wireless power transmission signal transmitted from each transmitting coil belonging to the plurality of transmitting coils may be generated by applying the plurality of transmission frequencies in a pre-configured order.

Abstract: The present invention relates to a transformer and, more specifically, to a transformer including a secondary coil portion on which a conductive plate is stacked. A transformer according to one embodiment of the present invention can comprise: a bobbin; a core portion coupled to the bobbin along the outer side of the bobbin; and a plurality of conductive plates inserted into the bobbin and stacked in a thickness direction.

Abstract: The present disclosure is to provide a method of controlling limp home driving of a hybrid vehicle. When the hybrid vehicle enters into a limp home driving mode with a starter generator malfunctioning, a motor control unit performs constant voltage control on counter electromotive force of a motor, so that a constant voltage is supplied to high-voltage components as an input voltage, thereby ensuring that high-voltage components are protected and operable.

Abstract: A bone growth stimulator includes a first screw fastened to the metaphysis portion and having a channel penetrating between a front end and a rear end, a second screw fastened to the metaphysis portion while being disposed in parallel to the first screw and having a channel penetrating between a front end and a rear end, a first rod pin having one side passing through a human tissue that surrounds the long bone and being inserted into the channel of the first screw, and another side exposed to the outside of the human tissue, a second rod pin having one side passing through a human tissue that surrounds the long bone and being inserted into the channel of the second screw, and another side exposed to the outside of the human tissue, and a pressing unit for applying a force in a direction for spacing the first rod pin apart from the second rod pin.

Abstract: The present disclosure relates to a separator and a method of manufacturing the separator. The separator includes a porous support and a hydrophilic polymer applied to the surface of the porous support through a solution including the hydrophilic polymer and a solvent, and satisfies the following Equation: 0.015?(C*D)/(A*B)?0.65, where A is a thickness (?m) of the porous support, B is an air permeability (Gurley, seconds/100 ml) of the porous support, C is a porosity (% by volume) of the porous support, and D is a content (% by weight) of the hydrophilic polymer in the solution.

Abstract: According to one embodiment of the present disclosure, there is provided a copper foil including a copper film including 99.9 wt % or more of copper, wherein the copper foil has a first weight retention rate of 0.1% or less, and a second weight retention rate of 0.3% or less.

Abstract: According to one embodiment of the present disclosure, there is provided a copper foil including a copper film including 99.9 wt % or more of copper, wherein the copper film has an A-value in a range of 1.1 to 1.6. “A” is calculated by Equation 1 below, A = P / Q [ Equation ? 1 ] wherein “P” in Equation 1 is a peak intensity at 1650 cm?1 of the copper film, “Q” in Equation 1 is a peak intensity at 1460 cm?1 of the copper film, and the peak intensity is measured by Fourier-transform infrared spectroscopy (FT-IR).

Abstract: According to one embodiment of the present disclosure, there is provided a copper foil including a copper film including 99.9 wt % or more of copper, wherein the copper foil has a room temperature MIT 1 of 280 or more, a high-temperature MIT 1 of 130 or more, a room temperature MIT 2 of 14 or more, and a high-temperature MIT 2 of 25 or more. The room temperature MIT 1 refers to an MIT number when a bending radius (R) is 0.38 mm at room temperature, the high-temperature MIT 1 refers to an MIT number when a bending radius (R) is 0.38 mm after heat treatment at 190° C. for one hour, the room temperature MIT 2 refers to an MIT number when a bending radius (R) is 0.1 mm at room temperature, and the high-temperature MIT 2 refers to an MIT number when a bending radius (R) is 0.1 mm after heat treatment at 190° C. for one hour.

Abstract: According to one embodiment of the present disclosure, there is provided a copper foil including a copper film including 99.9 wt % or more of copper, wherein the copper foil has a first stress factor in a range of 2.8 to 3.2, a second stress factor in a range of 2.5 to 3.0, and a third stress factor in a range of 3.5 to 4.5, and a method for manufacturing the copper foil.

Abstract: According to one embodiment of the present disclosure, there is provided a copper foil including a copper film including 99.9 wt % or more of copper, wherein the copper film has a room temperature loss factor of 0.05 or less, wherein the room temperature loss factor is calculated by Equation 1 below, room temperature loss factor=room temperature loss modulus/room temperature storage modulus.

Abstract: According to one embodiment of the present disclosure, there is provided a copper foil including a copper film including 99.9 wt % or more of copper, and a protective layer formed on the copper film, wherein the copper foil has a room temperature puncture strength in a range of 5.0 N to 7.0 N, and a high-temperature puncture strength in a range of 8.0 N to 12.5 N. At this time, the high-temperature puncture strength is a puncture strength measured after heat treatment at 190° C. for one hour.

Abstract: According one embodiment of the present disclosure, there is provided a copper foil including a copper film including 99.9 wt % or more of copper, and a protective layer formed on the copper film, wherein the copper foil has a tensile strength index of 3.0 kgf/mm2 or less, and an elongation index of 2.1% or less.

Abstract: According to one embodiment of the present disclosure, there is provided a copper foil including a copper film having 99.9 wt % or more of copper, wherein the copper foil has a color difference coefficient in a range of 0.38 to 0.7 based on the Lab color system.