Abstract: Disclosed is a technique for processing signals received from a radar and, in particular, a technique for tracking a target on the basis of detected target candidate signals. The proposed invention introduces a recurrent neural network with a memory function in order to find a target signal from signals with noise and fake signals mixed therein. This recurrent neural network is trained to have a maximum of Q tracking buffers therein. According to an additional aspect, it is possible to increase tracking accuracy through a serial connection of the recurrent neural network. According to an additional aspect, it is possible to track multiple targets through a parallel connection of the recurrent neural network.

Abstract: An automatic washing apparatus for a heat exchanger is proposed. The automatic washing apparatus is configured to recognize positions of tube holes through a camera, and to automatically wash the tube holes. The automatic washing apparatus is also configured to be able to automatically wash an external bundle and internal tubes of a heat exchanger in accordance with set operation patterns of an external washing module and an internal washing module, and to be able to reuse washing water used for washing a heat exchanger as washing water by reprocessing the washing water.

Abstract: An electronic device is provided.

Abstract: An automatic washing apparatus for a heat exchanger is proposed. The automatic washing apparatus is configured to recognize positions of tube holes through a camera, and to automatically wash the tube holes. The automatic washing apparatus is also configured to be able to automatically wash an external bundle and internal tubes of a heat exchanger in accordance with set operation patterns of an external washing module and an internal washing module, and to be able to reuse washing water used for washing a heat exchanger as washing water by reprocessing the washing water.

Abstract: An electronic device is provided.

Abstract: One-dimensional data obtained by performing a Fourier transform on a digitally converted frequency modulated continuous wave (FMCW) radar signal at every pulse repetition interval is input to a recurrent neural network (RNN) to find the probability of the existence of a target in each range index. The range indices, i.e., bit frequencies are selected based on the probability. In order to reduce the size of the RNN, windowing may be applied. In addition, a speed-index-specific coefficient value may be calculated by accumulating and performing a Fourier transform on the selected bit frequencies in which the target exists over a plurality of pulse repetition intervals. Thus, it is possible to calculate the speed of the target.

Abstract: Two-dimensional data obtained by performing a Fourier transform on a digitally converted FMCW radar signal at every pulse repetition interval over N pulse repetition intervals is input to a convolutional neural network (CNN) to find the probabilities of the existence of a target in range indices. The range indices, i.e., bit frequencies are selected based on the probabilities of the existence of the target. In order to reduce the size of the CNN, windowing is applied to the two-dimensional data. A speed-index-specific coefficient value may be calculated by re-performing a Fourier transform on range data for the selected bit frequencies. Thus, the range and speed of the target may be calculated.

Abstract: An electronic device is provided.

Abstract: According to an embodiment of the present disclosure, an electronic device may comprise a housing including a first surface facing in a first direction and a second surface facing in a second direction opposite the first direction, the housing including a transparent cover that comprises at least part of the first surface, a display disposed between the first surface and the second surface of the housing and configured to display information through the transparent cover to an outside, an illumination part comprising light emitting circuitry disposed at an inner side of an end of the first surface of the housing and configured to emit light to the transparent cover, an optical coupler disposed between the illumination part and the transparent cover and configured to reflect light from the illumination part to the transparent cover, and a biometric sensor disposed under the transparent cover and the display.

Abstract: Disclosed is a technique for processing signals received from a radar and, in particular, a technique for tracking a target on the basis of detected target candidate signals. The proposed invention introduces a recurrent neural network with a memory function in order to find a target signal from signals with noise and fake signals mixed therein. This recurrent neural network is trained to have a maximum of Q tracking buffers therein. According to an additional aspect, it is possible to increase tracking accuracy through a serial connection of the recurrent neural network. According to an additional aspect, it is possible to track multiple targets through a parallel connection of the recurrent neural network.

Abstract: The present invention relates to a functional composition for surface modification. The composition for surface modification, according to the present invention, comprises functional components having functional groups, which can be covalently bound to cysteine residues in proteins of hair, skin, fingernails or toenails, hide, or fiber, to form covalent bonds without damaging the hair, skin, fingernails or toenails, hide, or fiber, thereby remarkably improving the effects of the functional components, thus providing a desired surface modification effect semi-permanently.

Abstract: Disclosed herein is a lighting apparatus capable of uniformly maintaining power consumed by light emitting units even in the case in which various voltages are applied, and increasing power efficiency while minimizing a heating problem by adjusting a reference voltage applied to a connection structure of the light emitting units and a distribution switch according to magnitude of the applied voltage.

Abstract: The purpose of the present invention is to reduce heat generated through a switching IC circuit in order to protect a switching IC circuit by connecting a resistor to an LED unit in which a plurality of LEDs are connected so as to disperse heat in the resistor when a rated voltage or more is inputted. To this end, the LED lighting device comprises: a rectification circuit unit for receiving input power from a power source unit and outputting a rectified power; an LED unit having a plurality of LED channels connected in series and a resistor unit connected to the last end of the LED channels; a current sensing resistor; and a switch circuit unit comprising a plurality of switches, wherein an nth switch is connected to the rear end of an nth LED channel so as to control an operation of the nth LED channel and is controlled by a sum of a current of the nth switch and a current of an (n+1)th switch, which flows through the current sensing resistor.

Abstract: The purpose of the present invention is to reduce heat generated through a switching IC circuit in order to protect a switching IC circuit by connecting a resistor to an LED unit in which a plurality of LEDs are connected so as to disperse heat in the resistor when a rated voltage or more is inputted. To this end, the LED lighting device comprises: a rectification circuit unit for receiving input power from a power source unit and outputting a rectified power; an LED unit having a plurality of LED channels connected in series and a resistor unit connected to the last end of the LED channels; a current sensing resistor; and a switch circuit unit comprising a plurality of switches, wherein an nth switch is connected to the rear end of an nth LED channel so as to control an operation of the nth LED channel and is controlled by a sum of a current of the nth switch and a current of an (n+1)th switch, which flows through the current sensing resistor.

Abstract: A light emitting diode (LED) lighting device includes a circuit for receiving an input power from a power source and outputting a rectified power, an LED unit including a plurality of LED channels connected in series, each LED channel having a front end and a rear end, a current sensing resistor, and a switch circuit unit. The switch circuit unit includes a plurality of switches, and an Nth switch is connected to the rear end of an Nth LED channel so as to control an operation of the nth LED channel, and is controlled by a sum of a current of the Nth switch and a current of an (N+1)th switch, which flows through the current sensing resistor. Forward voltages of the LED channels are unevenly redistributed so as to keep power consumption between the Nth switch and the (N+1)th switch substantially same, and N is a positive integer.

Abstract: The present invention relates to a functional composition for surface modification. The composition for surface modification, according to the present invention, comprises functional components having functional groups, which can be covalently bound to cysteine residues in proteins of hair, skin, fingernails or toenails, hide, or fiber, to form covalent bonds without damaging the hair, skin, fingernails or toenails, hide, or fiber, thereby remarkably improving the effects of the functional components, thus providing a desired surface modification effect semi-permanently.

Abstract: Disclosed herein is a lighting apparatus capable of uniformly maintaining power consumed by light emitting units even in the case in which various voltages are applied, and increasing power efficiency while minimizing a heating problem by adjusting a reference voltage applied to a connection structure of the light emitting units and a distribution switch according to magnitude of the applied voltage.

Abstract: An electronic device is provided.

Abstract: A data transmission terminal according to the present invention comprises: a communication unit which performs communication with a server; a noise collection unit which collects a peripheral noise; a data transmission unit which transmits data to a data reception terminal through an audible frequency band; and a control unit which analyzes the collected noise to generate a noise analysis result and controls the communication unit to transmit the noise analysis result to the server.

Abstract: Disclosed herein is a lighting apparatus capable of uniformly maintaining power consumed by light emitting units even in the case in which various voltages are applied, and increasing power efficiency while minimizing a heating problem by adjusting a reference voltage applied to a connection structure of the light emitting units and a distribution switch according to magnitude of the applied voltage.