Abstract: Disclosed is a method of preparing PCL patch tissue regeneration scaffold comprising preparing solution by adding polycaprolactone (PCL) and an acid to an organic solvent; preparing an electrospinning solution by adding a growth factor to the solution and stirring; and collecting nanofibers arranged in a spindle shape on a collector by connecting the electrospinning solution prepared to a syringe pump and operating the electrospinning device.

Abstract: A mask cleaning apparatus includes: a mask holding unit configured to hold a mask; a light source unit configured to irradiate light onto the mask to remove a deposition material accumulated on a surface of the mask; and a material collecting unit configured to collect the deposition material removed from the mask, wherein the material collecting unit includes: a plurality of collecting cases corresponding to kinds of the deposition material; a rotating plate having a suction hole; and a plate driving unit configured to rotate the rotating plate to connect the suction hole to at least one of the collecting cases. Based on the irradiated light, different organic deposition materials may be collected for reuse.

Abstract: A method of generating Acknowledgement/Negative Acknowledgement (ACK/NACK) information by a user equipment (UE) in a wireless communication system is discussed. The method includes receiving, by the UE from a base station (BS), a plurality of codewords through a plurality of downlink frequency bands related to a plurality of downlink carriers, wherein the UE is configured with a 1-codeword mode or a 2-codeword mode for each of the plurality of downlink frequency bands independently, and wherein a number of supported codewords is one for the 1-codeword mode or two for the 2-codeword mode; determining, by the UE, a total number of ACK/NACK bits, wherein the total number of ACK/NACK bits is determined based on a total number of the plurality of downlink carriers and the number of supported codewords; and generating, by the UE, a sequence of the ACK/NACK bits based on the total number of the ACK/NACK bits.

Abstract: The present invention relates to a method for transmitting, by a base station, a downlink signal using a plurality of transmission antennas comprises the steps of: applying a precoding matrix indicated by the PMI, received from a terminal, in a codebook to a plurality of layers, and transmitting the precoded signal to the terminal through a plurality of transmission antennas. Among precoding matrices included in the codebook, a precoding matrix for even number transmission layers can be a 2×2 matrix containing four matrices (W1s), the matrix (W1) having rows of a number of transmission antennas and columns of half the number of transmission layers, the first and second columns of the first row in the 2×2 matrix being multiplied by 1, the first column of the second row being multiplied by coefficient “a” of a phase, and the first column of the second row being multiplied by “?a”.

Abstract: A user interface capable of controlling various functions in a vehicle is disclosed. The vehicle control method using a smart key includes an integrated operation unit detecting attachment of the smart key through a smart key detector disposed in a predetermined attachment area inside a vehicle, the integrated operation unit transmitting information on a controlled function corresponding to a vehicle state to the smart key, outputting a first user interface corresponding to the information on the controlled function on a first display of the smart key, transmitting information on a result of operation from the smart key to the integrated operation unit when an operation unit provided in the smart key is operated, and the integrated operation unit controlling the controlled function based on the information on the result. The smart key is fixed in the attachment area using magnetic force.

Abstract: Disclosed is an SNS analysis server. The SNS analysis server includes at least one processor for analyzing SNS activity of a user by using information about an SNS account of the user and information including an evaluation application form of the user, and determining an evaluation score for the user based on the analyzed SNS activity of the user to provide the determined evaluation score. Accordingly, non-target customers who do not have credit assessments may get additional opportunities for loans, and job applicants may get additional employment opportunities based on social assessments. Business operators may hire employees who are more suited to vocational aptitude, block black consumers in advance, and perform marketing by analyzing a marketing target to better understand propensities and needs of customers.

Abstract: An in-vehicle control apparatus using a smart key provided with a display and a method for controlling the same are provided. The method includes sensing, by an integrated apparatus, at least one of a vehicle state, an attachment state of the smart key, and a detachment state of the smart key, the smart key including a magnet, and adjusting a magnetic force of at least one electromagnet provided in a smart key recognizer disposed in a predetermined attachment region inside the vehicle based on a plurality of levels and a result of the sensing. The levels include at least a first level occurring before driving and a second level occurring during driving, and a magnetic force corresponding to the second level is greater than a magnetic force corresponding to the first level.

Abstract: Provided are an apparatus and method for linearly approximating a deep neural network (DNN) model which is a non-linear function. In general, a DNN model shows good performance in generation or classification tasks. However, the DNN fundamentally has non-linear characteristics, and therefore it is difficult to interpret how a result from inputs given to a black box model has been derived. To solve this problem, linear approximation of a DNN is proposed. The method for linearly approximating a DNN model includes 1) converting a neuron constituting a DNN into a polynomial, and 2) classifying the obtained polynomial as a polynomial of input signals and a polynomial of weights.

Abstract: A method of testing a display panel including a pixel coupled to first, second, and third power lines, a data line, scan lines, an emission control line, and a test line, the method includes: applying a first power supply voltage to the first power line; applying a test voltage having a turn-on voltage level to the second power line; applying a scan signal having a turn-on voltage level sequentially to the scan lines and an emission control signal having a turn-on voltage level to the emission control line; applying a gate signal to the test line to turn on a test transistor coupled between two electrode of a light emitting element included in the pixel; measuring a sensing voltage output through the data line; and determining whether the pixel is defective, based on a voltage level of the measured sensing voltage.

Abstract: A method of generating Acknowledgement/Negative Acknowledgement (ACK/NACK) information by a user equipment (UE) in a wireless communication system is discussed. The method includes receiving, by the UE from a base station (BS), a plurality of codewords through a plurality of downlink frequency bands related to a plurality of downlink carriers, wherein the UE is configured with a 1-codeword mode or a 2-codeword mode for each of the plurality of downlink frequency bands independently, and wherein a number of supported codewords is one for the 1-codeword mode or two for the 2-codeword mode; determining, by the UE, a total number of ACK/NACK bits, wherein the total number of ACK/NACK bits is determined based on a total number of the plurality of downlink carriers and the number of supported codewords; and generating, by the UE, a sequence of the ACK/NACK bits based on the total number of the ACK/NACK bits.

Abstract: A flexible wheel may include a flexible tire section which is deformable in a radial direction from a circumference thereof, and an anti-bending guide section coupled with the flexible tire section. The anti-bending guide section is connected to a driving shaft, and the flexible tire section and the anti-bending guide section are concentric. The flexible tire section includes a ring-shaped outer layer, one or more inner layers, and a plurality of spokes. In addition, the anti-bending guide section includes a plurality of plates, a hub, and a plurality of guides.

Abstract: A method for monitoring a downlink control channel, is performed by a user equipment (UE) configured with multiple carriers and includes receiving information on carrier index, determining a plurality of UE-specific search spaces for monitoring the downlink control channel, and monitoring the downlink control channel within the plurality of UE-specific search spaces, wherein location of each of the plurality of the UE-specific search spaces is determined based on the carrier index.

Abstract: A display device includes a light-emitting diode including a first conductivity-type semiconductor, an active layer, and a second conductivity-type semiconductor; a first voltage line to which a first voltage is applied; a second voltage line to which a second voltage is applied; a first transistor including a source electrode electrically connected to the first voltage line and a drain electrode electrically connected to a first electrode of the light-emitting diode and to the first conductivity-type semiconductor; a second transistor including a drain electrode electrically connected to a gate electrode of the first transistor and a source electrode electrically connected to a data line to apply a data signal; a capacitor electrically connected to the gate electrode of the first transistor and the first electrode; and a third transistor including a source electrode electrically connected to the second voltage line and a drain electrode electrically connected to the first electrode.

Abstract: A wireless power transmitter is provided. The wireless power transmitter includes a power source configured to provide direct current (DC) power, an inverter configured to receive the DC power from the power source, invert the DC power into alternating current (AC) power, and output the AC power, a coil configured to generate a magnetic field based on an input of the AC power, a sensor configured to measure a voltage of the AC power output from the inverter and a current of the AC power output from the inverter, and at least one processor configured to identify an external voltage applied to a load of an electronic device based on the voltage of the AC power and the current of the AC power, wherein the electronic device is configured to be wirelessly charged using the magnetic field.

Abstract: A method for transmitting control information via a PUCCH in a wireless communication system and an apparatus for performing the method are provided, the method including joint-coding a plurality of pieces of control information to obtain a single code word; obtaining a first modulated symbol sequence from the single code word; obtaining a plurality of second modulated symbol sequences corresponding to each slot in the PUCCH from the first modulated symbol sequence; cyclically shifting the plurality of second modulated symbol sequences in a time domain to obtain a plurality of third modulated symbol sequences; performing a Discrete Fourier Transform (DFT) precoding process on the plurality of third modulated symbol sequences to obtain a plurality of complex symbol sequences in a frequency domain; and transmitting the plurality of complex symbol sequences via the PUCCH.

Abstract: A method for recommending music content is provided. The method includes obtaining account information about an account of a service which provides music content, obtaining content information associated with properties of music content consumed in response to the account information and usability information about a manner which uses the music content in response to the account information, based on the account information, estimating a music age corresponding to the account information, based on the account information, the content information, and the usability information, and recommending music content based on the music age.

Abstract: A user interface capable of controlling various functions of a vehicle is disclosed. More particularly, an in-vehicle function control apparatus using a detachable knob and a method of controlling the same are disclosed. A method of controlling a vehicle function using a detachable knob includes an integrated operation unit detecting an attachment position of the detachable knob among a plurality of attachment positions in a vehicle, transmitting information on a result of the operation from the detachable knob to the integrated operation unit when an operation unit provided in the detachable knob is operated, and the integrated operation unit controlling a controlled function corresponding to the attachment position of the detachable knob based on the information on the result. The detachable knob is fixed at any one of the plurality of attachment positions using magnetic force.

Abstract: A user interface capable of controlling various functions in a vehicle is disclosed. The vehicle control method using a smart key includes an integrated operation unit detecting attachment of the smart key through a smart key detector disposed in a predetermined attachment area inside a vehicle, the integrated operation unit transmitting information on a controlled function corresponding to a vehicle state to the smart key, outputting a first user interface corresponding to the information on the controlled function on a first display of the smart key, transmitting information on a result of operation from the smart key to the integrated operation unit when an operation unit provided in the smart key is operated, and the integrated operation unit controlling the controlled function based on the information on the result. The smart key is fixed in the attachment area using magnetic force.

Abstract: Provided is an apparatus and method for reducing the number of deep neural network model parameters, the apparatus including a memory in which a program for DNN model parameter reduction is stored, and a processor configured to execute the program, wherein the processor represents hidden layers of the model of the DNN using a full-rank decomposed matrix, uses training that is employed with a sparsity constraint for converting a diagonal matrix value to zero, and determines a rank of each of the hidden layers of the model of the DNN according to a degree of the sparsity constraint.

Abstract: A vehicle control apparatus and method use a smart key provided with a display. The vehicle control method includes: an integrated manipulation unit detecting attachment of the smart key through a smart key detector disposed in a predetermined attachment area inside a vehicle; the integrated manipulation unit transmitting information on a target control function corresponding to a vehicle state to the smart key; outputting a first user interface corresponding to the information on the target control function on a first display of the smart key; transmitting information on a result of manipulation from the smart key to the integrated manipulation unit when an operating portion provided in the smart key is operated; and the integrated manipulation unit controlling the target control function based on the information on the result.