Abstract: Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The terminal includes a transceiver, and a processor. The processor is configured to receive an Aggregate-MAC Protocol Data Unit (A-MPDU) from an originator using the transceiver, and when receiving all MPDUs included in the A-MPDU, transmit to the originator a block ACK (BA) frame signaling that all MPDUs included in the A-MPDU are received without a bitmap indicating whether each MPDU included in the A-MPDU is received.

Abstract: A launch pad system includes a fuel vent port provided in a launch vehicle, a launch pad fuel tank provided outside the launch vehicle to store fuel, a fuel recovery line connecting the fuel vent port and the launch pad fuel tank such that the fuel is transferred therethrough, and a fuel transfer unit provided on the fuel recovery line to transfer the fuel, wherein the fuel may be recovered from the launch vehicle to the launch pad fuel tank.

Abstract: Provided is a method for artificially and efficiently inducing ectopic embryogenesis without fertilization in a seed plant. The present method includes introducing and expressing, in a seed plant, nucleic acid that includes a base sequence that codes a protein having an embryogenesis induction function.

Abstract: Provided are a tag, interrogator, and system for performing position measurement based on backscatter in a millimeter-wave band. In detail, provided is a tag including a planar Van Atta array antenna, a frequency-shift keying (FSK) modulator connected to the planar Van Atta array antenna, and at least one bias circuit connected to the FSK modulator, wherein the FSK modulator is configured to, based on an interrogation signal being received by the planar Van Atta array antenna, modulate the interrogation signal based on a control signal supplied through the at least one bias circuit, and output the modulated interrogation signal in a direction from which the interrogation signal is received, through the planar Van Atta array antenna.

Abstract: Disclosed herein are a high-speed synchronization apparatus and method based on a blockchain unit file. The high-speed synchronization apparatus includes memory configured to store at least one program, a database including unit files having a uniform size in which blocks are to be sequentially stored, and a processor configured to execute the program, wherein the program is configured to perform comparing a size of a block owned by a relevant peer node with a size of a block in use in a blockchain framework, wherein the size of the block owned by the relevant peer node is represented by a peer block size and the size of the block in use is represented by a channel block size, and when the peer block size is less than the channel block size, acquiring blocks from a peer node that owns a block having the channel block size and synchronizing the blocks.

Abstract: A porous transport layer is disclosed. The porous transport layer includes a base layer containing a titanium family element, a first coating layer disposed on one surface of the base layer and containing iridium (Ir), and a second coating layer disposed on the other surface of the base layer, and containing at least one of platinum (Pt), gold (Au), and silver (Ag), and a method for preparing the same.

Abstract: The present invention relates to a method for acquiring location information of an observation buoy reflecting influence of an ocean current and a method for assessing damage risk relating to spilled oil dispersion of a sunken ship by using same location information. At least one small observation buoy is floated on a target sea area, and a relay buoy collects location information from the observation buoy and predicts ocean current distribution of the target sea area on the basis of the collected information; and the predicted ocean current distribution is applied to a step of predicting spilled oil dispersion in a surrounding sea area so that damage risk relating to spilled oil dispersion of a sunken ship is precisely assessable.

Abstract: The present disclosure provides a modular excavator, including a plurality of assembly modules that are detachably connected, the plurality of assembly modules including: a frame turntable base module; a track beam assembly module connected to the frame turntable base module; a track module connected to the track beam assembly module; a slewing drive module connected to the frame turntable base module; a power assembly module connected to the frame turntable base module; a counterweight module connected to the power assembly module; a cab module connected to the frame turntable base module; a fuel tank module connected to the frame turntable base module; a boom assembly module connected to the frame turntable base module; a bucket arm assembly module connected to the boom assembly module; and a work tool module connected to the bucket arm assembly module.

Abstract: In accordance with one aspect of the present disclosure, there is provided an apparatus for detecting rain using a wire mesh sensor including: a wire mesh which is configured to include a plurality of transmitters and a plurality of receivers; and a fixing part for fixing the wire mesh; wherein the plurality of transmitters supply electricity to the wire mesh, and wherein, in response to rain being positioned between a specific transmitter among the plurality of transmitters and a specific receiver among the plurality of receivers, the specific receiver is configured to receive the electricity from the specific transmitter and then transmit the electricity to a measuring part, to thereby allow the measuring part to measure conductivity. This hemispherical apparatus can detect rain accurately by making the incident angles of the rain to be vertical regardless of the directions of the rain.

Abstract: Presented are methods of assessing the teratogenicity of agents by measuring the degradation of SALL4, and related compounds with reduced teratogenicity. Provided herein is a method for assessing the teratogenicity of an agent comprising: contacting an agent with SALL4; and measuring levels of SALL4, wherein the agent is teratogenic if SALL4 levels are substantially reduced in the presence of the agent relative to in the absence of the agent.

Abstract: A method for decoding a 360-degree image includes: receiving a bitstream obtained by encoding a 360-degree image; generating a prediction image by making reference to syntax information obtained from the received bitstream; combining the generated prediction image with a residual image obtained by dequantizing and inverse-transforming the bitstream, so as to obtain a decoded image; and reconstructing the decoded image into a 360-degree image according to a projection format. Here, generating the prediction image includes: checking, from the syntax information, prediction mode accuracy for a current block to be decoded; determining whether the checked prediction mode accuracy corresponds to most probable mode (MPM) information obtained from the syntax information; and when the checked prediction mode accuracy does not correspond to the MPM information, reconfiguring the MPM information according to the prediction mode accuracy for the current block.

Abstract: There is provided a method of decoding an image, the method comprising: decoding information for motion information prediction of a current block from a bitstream, predicting motion information of the current block based on the information, refining motion information of the current block by using the decoded information and the predicted motion information of the current block and reconstructing the current block based on the refined motion information of the current block.

Abstract: The present invention relates to a preparation method of a P-type high-resistance and ultra-high-resistance Czochralski monocrystalline silicon substrate. According to the present invention, an oxygen concentration in a silicon wafer is controlled to match with a resistivity, so as to realize that a conductive type of the silicon substrate does not change after a device is manufactured, and that the silicon substrate has a high resistivity. The oxygen concentration and the resistivity in silicon crystal can be adjusted separately or together; and operation is flexible, and a yield of a high-resistance silicon crystal is greatly improved.

Abstract: A time slot allocation processing method includes: a node device determining a time delay, in the node device, from a certain input port time slot to another port time slot, wherein the node device is a node device on an end-to-end channel; and the node device determining that the time delay is used for the establishment of end-to-end channel time slot allocation. A time delay sent by each node device is received, and end-to-end channel time slot allocation is performed according to each time delay. By using the present application, a time delay caused by time slot allocation can be reduced in a channel, thereby decreasing an end-to-end channel time delay.

Abstract: A water quality detection device including a detection tank, a sensor, the cleaner and a processor is provided. The sensor is disposed on the detection tank and is configured to sense a to-be-detected liquid within the detection tank. The cleaner is configured to clean the sensor. The processor is electrically connected to the sensor and the cleaner and is configured to: execute an initialization procedure, which includes driving the sensor to sense the to-be-detected liquid to obtain a number of initial sensing values and calculating a threshold value according to the initial sensing values; drive the sensor to sense the to-be-detected liquid to obtain a sensing value of the to-be-detected liquid, and determine whether the sensing value of the to-be-detected liquid reaches the threshold value; drive the cleaner to operate when the sensing value of the to-be-detected liquid reaches the threshold value.

Abstract: A transistor structure includes a substrate, a source electrode, a drain electrode, a protective layer and a gate electrode. The source electrode and the drain electrode are provided on the substrate. The protective layer is provided on the substrate. The protective layer is provided between the source electrode and the drain electrode. The protective layer includes a SiNx layer and a SiOx layer. The SiOx layer is provided on the substrate, the SiNx layer is provided on the SiOx layer, and a through hole of the protective layer is formed to extend through the SiNx layer and the SiOx layer. The gate electrode is provided in the through hole, and the gate electrode is separated from at least part of the SiOx layer so as to form an air gap therebetween.

Abstract: The present disclosure relates to an antibody binding specifically to CD55 or an antigen-binding fragment thereof; and a composition for preventing, treating and/or diagnosing cancer containing the same. The antibody of the present disclosure may be used as an effective therapeutic composition for various CD55-mediated diseases since it shows high binding ability and inhibitory effect for the CD55 protein which promotes tumor growth by inhibiting the complement immune mechanism. In addition, the antibody of the present disclosure may be usefully used as an effective therapeutic adjuvant that fundamentally removes drug resistance and remarkably improves therapeutic responsiveness in various diseases in which resistance to therapeutic agents with CDC (complement-dependent cytotoxicity) as a mechanism of action has been induced due to overexpression of CD55.

Abstract: A processing element includes an analog operation circuit configured to receive input data from an input buffer and to generate one or more output currents associated with a multiplication operation of the input data and weights based on a bit-precision of stored weights, one or more analog-to-digital converters (ADCs) each configured to convert the one or more output currents into one or more digital codes, and a digital operation circuit configured to perform an addition operation using the one or more digital codes based on the bit-precision of the weight and to perform a summation operation on a resultant value of the addition operation based on a bit-precision of the input data.

Abstract: A landmark identification and marking system for a panoramic image is provided. The system includes a storage device and a back-end processor. The storage device stores an initial panoramic image, attitude information, motion tracking information, and a landmark list. The back-end processor performs steps of: adjusting a visual angle of the initial panoramic image to a designated angle according to a difference value between the visual angle and the designated angle; providing the adjusted initial panoramic image to a front-end processor for calculating and generating a panoramic image integrated with landmark objects in the virtual space.

Abstract: A method for preparing hydrogen from ammonia by using pressure swing adsorption (PSA) is provided. The method for preparing hydrogen from ammonia, of the present invention, comprises the steps of: generating hydrogen and nitrogen from ammonia gas through a high-temperature reaction by using a catalyst; performing purification by selectively adsorbing unreacted ammonia gas from a gas containing unreacted ammonia and low-purity hydrogen and nitrogen, which are supplied through the high-temperature reaction and cooled; and performing purification by separating high-purity hydrogen from the gas consisting of low-purity hydrogen and nitrogen, wherein purification is carried out by using a carbon molecular sieve (CMS) adsorbent so as to desorb the unreacted ammonia gas through PSA.