Abstract: An active metamaterial array of the present disclosure includes: a substrate; a plurality of metamaterial structures disposed on the substrate and spaced apart from each other; a conductivity variable material layer formed between each of the plurality of the metamaterial structures so as to selectively connect the metamaterial structures; an electrolyte material layer formed on the metamaterial structures and the conductivity variable material layer; and a gate electrode disposed at one end of the substrate so as to be in contact with one region of the electrolyte material layer, and when an external voltage is applied to the gate electrode, the gate electrode changes the conductivity of the conductivity variable material layer by controlling the migration of ions contained in the electrolyte material layer.

Abstract: The present invention relates to a harmonic gear device in which a first similarity curve obtained by similarly transforming a reference curve representing a moving locus of an external tooth with respect to an internal tooth in a non-deflected state and a second similarity curve generated by similarly transforming the first similarity curve are used as a criterion for generating a tooth profile, wherein the present invention may provide the harmonic gear device that enlarges a first curve represented by a moving locus of positive deflection located above the apex of the reference curve among the moving loci of positive deflection of the external teeth on the basis of the reference curve to approximate an approximate reference point arranged on the second similarity curve to create a second curve, and uses the second curve as the top of the tooth profile of the external tooth.

Abstract: Disclosed are a pressure sensor for sensing pressure in a vertical direction, a strain sensor for sensing tension in a horizontal direction, and a method for manufacturing the sensors. The disclosed pressure sensor includes a plurality of pressure sensor units stacked in multiple layers, and at least one of a pressure elastic modulus and an amount of conductive particles per unit area of each of the plurality of pressure sensor units is different from each other.

Abstract: The present disclosure provides a method for processing data by an edge node including: receiving a data request from an application; confirming whether first data corresponding to the data request is included in a content storage of the edge node; confirming whether there is second data having a correlation with the first data which is equal to or higher than a predetermined threshold value based on a previously stored mapping table when the first data is not included in the content storage of the edge node; and transmitting the second data to the application when there is the second data having the correlation with the first data which is equal to or higher than the threshold value.

Abstract: According to embodiments, in an interrupt request processing device including one or more peripheral devices, one or more processor interfaces, and one or more processors, when an interrupt request (IRQ) is generated, the peripheral device generates a packet and transmit the packet to the processor interface via an on-chip network, the processor interface receives and decodes the packet to transmit the IRQ signal to the processor, and receives an interrupt vector generated from the processor to transmit an initial instruction corresponding to an activated interrupt request may transmit to the processor, and the processor outputs the interrupt vector in response to the IRQ signal and executes a corresponding interrupt service routine (ISR).

Abstract: A method of operating a repeater comprises selecting some of adaptive filter coefficients among a plurality of adaptive filter coefficients of an adaptive filter used for interference cancellation, based on the size of a coefficient, generating a predicted interference signal using the selected adaptive filter coefficients and generating an interference-canceled communication signal from a received signal using the generated predicted interference signal.

Abstract: Provided are a synchronization signal detection method performed by a receiver including a processor and a memory, the synchronization signal detection method comprises calculating a PSS correlation value for a primary synchronization signal (PSS) included in a received signal, detecting a frequency offset for the PSS and a timing offset for sampling timing of the received signal and detecting the PSS based on the PSS correlation value, the frequency offset, and the timing offset.

Abstract: Provided is a method for bypassing an analysis evasion technique, which includes: loading a dummy DEX file; parsing a dummy method containing a dummy code from the dummy DEX file; a bypass point identifying step of determining whether a function to be currently called is a bypass target function to which the analysis evasion technique is applied; a branch target point changing step of changing information according to the determination result so that the dummy code is executed instead of the call target function; and a dummy code executing step of transmitting the dummy code to a framework of the application, so that a modulated framework is executed with a bypass code.

Abstract: A battery diagnosis apparatus determines whether a battery may be reused and includes a data obtaining device configured to output a perturbation signal, a signal regulating device configured to generate a current by applying the perturbation signal to a battery and performing feedback of a current signal output from the battery, and a noise canceling device configured to cancel noises of the current signal and a voltage signal received from the battery. The data obtaining device outputs the perturbation signal while changing a frequency, obtains an impedance spectrum based on the noise-canceled current signal and voltage signal for each frequency, and determines whether to reuse the battery based on the obtained impedance spectrum.

Abstract: Provided is a contactless vertical transfer device using a linear motor. The contactless vertical transfer device using a linear motor includes: a transfer unit for picking up an article; and a linear motor located on a side portion of the transfer unit to move the transfer unit, wherein the linear motor comprises at least one driving unit that is located on a side portion of the transfer unit and provided with a mover which a coil is wound; and a rail unit that is located apart from the mover by a predetermined distance in a lateral direction and provided with a plurality of magnet portions disposed in a transfer direction of the transfer unit. The transfer unit is moved along the rail unit by a thrust force of the mover and the magnet portion.

Abstract: According to embodiments, in an interrupt request processing device including one or more peripheral devices, one or more processor interfaces, and one or more processors, when an interrupt request (IRQ) is generated, the peripheral device generates a packet and transmit the packet to the processor interface via an on-chip network, the processor interface receives and decodes the packet to transmit the IRQ signal to the processor, and receives an interrupt vector generated from the processor to transmit an initial instruction corresponding to an activated interrupt request may transmit to the processor, and the processor outputs the interrupt vector in response to the IRQ signal and executes a corresponding interrupt service routine (ISR).

Abstract: A method of operating a repeater comprises selecting some of adaptive filter coefficients among a plurality of adaptive filter coefficients of an adaptive filter used for interference cancellation, based on the size of a coefficient, generating a predicted interference signal using the selected adaptive filter coefficients and generating an interference-canceled communication signal from a received signal using the generated predicted interference signal.

Abstract: An anomaly detection method includes searching for one principal component axis by analyzing a normal data set collected in time series from a plurality of IoT devices by using a principal component analysis technique, setting a center point of the principal component, receiving a currently measured measurement data set from the plurality of IoT devices, acquiring a linear transformation data set having a plurality of projection points as elements by projecting a plurality of measurement data which is each element in the measurement data set onto the principal component axis, calculating a Mahalanobis distance between the projection point and the central point, and detecting whether or not data of the IoT devices is abnormal by comparing the Mahalanobis distance calculated for each element with a threshold.

Abstract: Disclosed are a method for changing a game parameter and a client for performing same. The client comprises: a processor for executing a game program; and a transceiver for communicating with a blockchain node of a blockchain network storing a first blockchain, wherein the processor may authenticate a user account and perform a first event of the game program accessed by the user account, the transceiver may transmit, to the blockchain node, a completion signal of the first event including information about the client when the first event is completed and receive, from the blockchain node, a request signal for generating a second event, the processor may generate the second event on the basis of the request signal for generating the second event, and the transceiver may transmit, to the blockchain node, information about the second event.

Abstract: A terminal device for generating user behavior data, a method for generating user behavior data, and a recording medium are provided. The disclosed terminal device may include a memory unit storing instructions readable by a computer; and a processor unit implemented to execute the instructions, where the processor unit may compute a probability distribution model for achieving the intentions of a user by using raw data related to time-dependent actions of the user and may generate user behavior data by using the probability distribution model, with the user behavior data comprising time series data in which multiple actions composing the intentions of the user are aligned in order.

Abstract: The present invention relates to a composition for electroless platinum plating and an electroless platinum plating method using the same, wherein it is possible to easily and safely produce a uniformly dispersed platinum thin film without expensive additional equipment by performing electroless platinum plating with a composition for electroless platinum plating containing an alcohol, an aqueous solution of a platinum chloride compound, and an aqueous solution of a basic compound.

Abstract: A pressure sensor having unevenness and a manufacturing method therefor are disclosed. The disclosed pressure sensor senses pressure in a vertical direction and includes a first pressure sensor unit and a second pressure sensor unit, wherein the first pressure sensor unit and the second pressure sensor unit are stacked, and unevenness is formed on the upper surface of the first pressure sensor unit and on the lower surface of the second pressure sensor unit.

Abstract: A method for object position estimation based on a magnetic field using an underwater sensor network, includes: step of receiving a magnetic field signal that is emitted from an underwater moving object using an underwater sensor network which is configured with a plurality of magnetic field sensors in the water; step of extracting an induced magnetic field signal by removing a geomagnetic field and a noise signal from the received magnetic field signal; step of determining whether or not the moving object enters the underwater sensor network using the induced magnetic field signal; and step of estimating a position of the object using position information of the plurality of sensors that sense the object if it is determined that the object enters the underwater sensor network.

Abstract: Provided are a method of judgment for in or out, and a recording medium and an apparatus for performing the same. The method performed by the apparatus for judging whether an object landed inside or outside of a line, includes: capturing a sport environment image provided with the line according to a preset rule, wherein the sport environment image includes an audio signal and an image signal; separating the audio signal and the image signal included in the sport environment image; detecting the line by analyzing the image signal; detecting a landing point-in-time of the object by analyzing each of the audio signal and the image signal; and judging whether the object landed inside or outside of the line by comparing the line with a location of the object at the landing point-in-time of the object.

Abstract: Provided is a hybrid trusted execution environment based android security framework, an android device equipped with the same and a method of executing a trusted service in the android device. The hybrid trusted execution environment based android security framework includes a hardware resource that comprises a rich execution environment (REE) where an android operating system (OS) runs, and a secure container which implements a virtualized trusted execution environment (VTEE) that processes a security task in the rich execution environment (REE) when an application running on the rich execution environment requests the security task.