Abstract: The present invention relates to ferroelectric capacitors, transistors, memory device, and method of manufacturing ferroelectric devices. The ferroelectric capacitor includes a first electrode, a second electrode facing the first electrode, a ferroelectric layer between the first electrode and the second electrode, and an interfacial layer between the ferroelectric layer and the first electrode or between the ferroelectric layer and the second electrode. The ferroelectric layer includes hafnium-based oxide. The interfacial layer includes HfO2.

Abstract: Disclosed is a method and system for international mobile equipment identity (IMEI) verification and unauthorized terminal detection based on contents of control plane messages exchanged in a process of a terminal that accesses a commercial network in a mobile communication network and the method includes constructing a fingerprint database for each terminal using contents of a control plane message generated in a process of a terminal that accesses a commercial network and a response to the control plane message; and verifying IMEI for an arbitrary terminal that accesses the commercial network using the fingerprint database.

Abstract: Disclosed are a distributed learning-based multi-task vision transformer through random patch permutation and a transformation method using the same. The transformation method using the distributed learning-based multi-task vision transformer through random patch permutation may include preparing, using a task non-specific patch embedder, a patch embedding for each client and passing the patch embedding through a permutation module and then transmitting the patch embedding to a server; and storing ; by the server, the received patch embedding and using the patch embedding to update body and tail parts of a vision transformer model.

Abstract: A micro-separator for gas chromatography includes a base substrate having a trench defining a micro-column, and a three-dimensional (3D) porous ceramic-polymer composite disposed in the micro-column and having pores that three-dimensionally connected to each other with periodicity. The 3D porous ceramic-polymer composite includes a ceramic nano-structure, which forms an array of three-dimensionally arranged nano-shells, and a reaction-activating layer combined on a surface of the ceramic nano-structure and including a polymeric reaction-activating material. A thickness of the 3D porous ceramic-polymer composite is 10 ?m to 20 ?m, a column length of the 3D porous ceramic-polymer composite is 30 cm to 70 cm, and a shell thickness of the ceramic nano-structure is 20 nm to 60 nm. The micro-separator may have improved separation performance and durability.

Abstract: A disclosed polymer thin film includes a cationic polymer having a hydrolyzable side chain. The polymer thin film has a surface potential of 1 mV to 50 mV. A hydrolysis efficiency of the cationic polymer is 30% or more after reaction at 50° C. for one hour. The cationic polymer is dissolved to three-dimensionally capture nucleic acids, and releases the nucleic acids through hydrolysis. Thus, nucleic acid capturing-releasing efficiency can be improved.

Abstract: Disclosed is a write method comprising a step in which a storage device determines an execution order between received first and second write commands, and executes the first write command and the second write command according to the determined execution order. The first write command comprises first stream identification information having {first stream ID, first epoch ID}, the second write command comprises second stream identification information having {second stream ID, second epoch ID}, and when the first stream ID and the second stream ID are different from each other, the execution order is determined without using the result of comparison between the first epoch ID and the second epoch ID.

Abstract: Disclosed is a conjugate gradient acceleration apparatus using band matrix compression in depth fusion technology including a band matrix conversion unit configured to convert an adjacency matrix for correcting depth data acquired from data of an image sensor through deep learning based on depth information acquired from a depth sensor into a band matrix using rows of the adjacency matrix as addresses of query points and columns of the adjacency matrix as the nearest neighbors at the query points, a band matrix compression unit configured to mark an index on each band in order to compress the band matrix and to compress data, a memory unit configured to store tile data of the band matrix, and a band matrix calculation unit configured to perform computation of the band matrix and a transposed band matrix or computation of a symmetric band matrix with respect to the band matrix and a vector.

Abstract: A 3D memristor element includes a 3D nano-composite including a resistance-varying part, a first conductor and a second conductor, a first terminal electrically connected to the first conductor, and a second terminal electrically connected to the second conductor. The resistance-varying part includes a plurality of nano-shells, which are three-dimensionally arranged and connected to each other. The first conductor is disposed in the nano-shells and has a 3D network structure thereby forming a 3D interface with the nano-shells. The second conductor three-dimensionally surrounds the resistance-varying part, and is separated from the first conductor by the resistance-varying part.

Abstract: The present disclosure relates to a fine particle-trapping sensor including: a plasmonic hotspot layer formed of a first metal; and a trapping layer formed of a second material. The inventors of the present disclosure have made extensive research efforts to develop a more effective and novel sensor for the real-time and high-sensitivity detection of droplets emitted from the oral cavity. As a result, the inventors have developed an alloy composite nanostructure including a Raman sensor layer, formed of a metal, and a trapping layer formed of a dielectric material, and have found that, when the ratio between the two layers is adjusted, the alloy composite nanostructure effectively traps respiratory droplets rapidly emitted from the oral cavity and detects coronavirus (SARS-CoV-2 lysate) in the respiratory droplets at a concentration of 10 pfu/ml, indicating that the composite nanostructure may be very advantageously used in the field of fine particle trapping.

Abstract: A data storage device includes one or more nonvolatile memory devices each including a plurality of unit storage spaces; and an address recommending circuit configured to recommend a unit storage space among the plurality of unit storage spaces to process a write request, wherein the address recommending circuit applies feature data to a neural network to recommend the unit storage space, and wherein the feature data is generated based on request information for the write request, a target address corresponding to the write request, an address of data stored in the plurality of unit storage spaces.

Abstract: Embodiments of the present inventive concept provides a water treating device for treating a circulating water including a storage tank configured to store the circulating water, a first filter configured to filter the circulating water discharged by the storage tank, a phosphorus removing device configured to remove phosphorus contained in the circulating water, and an ultraviolet ray irradiation device configured to irradiate an ultraviolet ray to the circulating water.

Abstract: Disclosed herein are an apparatus and method for training a deep neural network. An apparatus for training a deep neural network including N layers, each having multiple neurons, includes an error propagation processing unit configured to, when an error occurs in an N-th layer in response to initiation of training of the deep neural network, determine an error propagation value for an arbitrary layer based on the error occurring in the N-th layer and directly propagate the error propagation value to the arbitrary layer, a weight gradient update processing unit configured to update a forward weight for the arbitrary layer based on a feed-forward value input to the arbitrary layer and the error propagation value in response to the error propagation value, and a feed-forward processing unit configured to, when update of the forward weight is completed, perform a feed-forward operation in the arbitrary layer using the forward weight.

Abstract: A method of reduce the impact of noise on a depth image produced using a Time Of Flight (TOF) camera uses an infrared image produced from one or more phase-specific images captured by the TOF camera to determine whether to move pixels in the depth image from one phase section to another.

Abstract: An amplification apparatus includes an amplifier having an inverting terminal, and a non-inverting terminal connected to a reset voltage node, a first capacitor connected to the inverting terminal, an input voltage being applied to the first capacitor, a second capacitor connected to the inverting terminal and an output terminal of the amplifier, and a duty-cycled resistor, connected in parallel to the second capacitor, including a first resistor. The duty-cycled resistor is configured to connect the first resistor and the inverting terminal and to disconnect the first resistor and the reset voltage node during a first time interval included in a period to complete an on-and-off cycle of the duty-cycled resistor, and disconnect the first resistor and the inverting terminal and to connect the first resistor and the reset voltage node during a second time interval included in the period.

Abstract: A covalent organic framework and a method of preparing the same are disclosed. The covalent organic framework is used to produce an electrode material and includes a repeating unit represented by the following chemical formula: In the formula, A1, A2, and A3 are the same or different, and are independently a monocyclic or polycyclic aromatic ring, and R1 and R2 are the same or different, and are independently selected from hydrogen, a functional group containing at least one nitrogen, phosphorus, or sulfur, an unsubstituted or substituted C1-C6 alkyl group, an unsubstituted or substituted C2-C6 alkenyl group, an unsubstituted or substituted C2-C6 alkynyl group, and an unsubstituted or substituted C1-C6 alkoxy group.

Abstract: An electronic device which includes processing circuitry configured to acquire training data corresponding to multiple antennas, the training data having a label and features, the label including a first channel value for a first time slot, and the features including a plurality of second channel values for a plurality of time slots before the first time slot, train a channel prediction model based on the training data to obtain a trained channel prediction model, and obtain a channel prediction value for a prediction time based on the trained channel prediction model.

Abstract: The present invention relates to a device for converting a frequency of an electromagnetic wave and, more specifically, to a device for converting an original frequency of an electromagnetic wave into a frequency corresponding to a resonator mode by using a time-varying Fabry-Perot resonator including a time-varying reflective surface of which reflectivity changes with time.

Abstract: A SOI wafer is formed by forming a hole array on a surface of a wafer including a semiconductor material, forming a membrane-cavity structure by annealing process on the wafer, forming a buried oxide layer on an inside of the cavity and an outer oxide layer on an outside of the membrane, and forming a device layer by removing the outer oxide layer.

Abstract: The present disclosure relates to a method for providing information for determining lung tumor through inhalation of a fluorescent contrast agent, more particularly to a method of inhaling a small amount of Indocyanine green. The present disclosure does not have the problem of the existing intravenous injection that the administered fluorescent contrast agent is distributed throughout the body. In addition, when comparing the cancer detection efficiency of inhalation administration and intravenous injection, the inhaled fluorescent contrast agent exhibits remarkably higher cancer detection effect than the intravenously injected fluorescent contrast agent.

Abstract: A semiconductor device includes a memory cell array including a plurality of memory cells coupled between a multiplicity of word lines and one or more bit lines; and an operation circuit configured to perform a multiplication and accumulation (MAC) operation with one or more first multi-bit data provided from the one or more bit lines and one or more second multi-bit data, wherein a plurality of memory cells coupled to a bit line store a plurality of bits included in a corresponding one of the one or more first multi-bit data, and wherein the memory cell array sequentially provides the plurality of bits included in the corresponding first multi-bit data to the operation circuit.