Abstract: Methods, apparatuses, and systems described herein generally relate to a reference signal generation and mapping. For example, a method comprises determining a first set of antenna ports for a demodulation reference signal (DM-RS) transmission; determining, based on the first set, a frequency index associated with four adjacent resource elements, wherein the four adjacent resource elements correspond to two adjacent symbols in a time axis and to two adjacent subcarriers in a frequency axis; generating, based on a first orthogonal cover code and a second orthogonal cover code, a DM-RS associated with the first set of antenna ports; and transmitting, via a mapping to the four adjacent resource elements, the DM-RS associated with the first set of antenna ports.

Abstract: An antenna structure includes an antenna unit including a signal pad and a ground pad spaced apart from the signal pad, and a circuit board electrically connected to the antenna unit. The circuit board includes a connection pad connected to the signal pad and a bonding pad connected to the ground pad. The bonding pad has an area smaller than an area of the ground pad. The antenna structure is connected to an external circuit through the circuit board to provide a multi-band radiation.

Abstract: The present invention relates to a Corynebacterium glutamicum mutant strain having increased L-citrulline productivity, and a method of producing L-citrulline using the same. The Corynebacterium glutamicum mutant strain is capable of producing L-citrulline in high yield and high concentration while inhibiting the production of by-products, because the activity of the protein that is expressed by the NCgl2657 gene therein has been weakened or inactivated.

Abstract: A pore-filled ion exchange polyelectrolyte composite membrane from which the surface ion exchange polyelectrolyte has been removed and a method of manufacturing the same are provided. The ion exchange polyelectrolyte composite membrane exhibits low film resistance and low in-plane-direction swelling degree, and has a smaller film-thickness than a commercial film, and thus, can be used for various purposes. In addition, since the pore-filled ion exchange polyelectrolyte composite membrane is continuously manufactured through a roll-to-roll process, the manufacturing process is simple, and manufacturing costs can be greatly reduced.

Abstract: The present invention relates to an intracellular expression enhancing genetic element, which enhances the intracellular expression of target protein encoded in RNA therapeutics such as mRNA vaccines and RNA medicines. In more detail, the present invention relates to the RNA molecule which has the genetic element capable of enhancing the intracellular expression of target protein encoded in RNA therapeutics delivered into cells; the plasmid used to synthesize the RNA molecule having the genetic element “E3”; the method for synthesizing RNA molecule having the genetic element “E3” using the plasmid and utilizing the synthesized RNA molecule as RNA therapeutics.

Abstract: Disclosed is a method of manufacturing a polyurethane filter foam having excellent air permeability, elasticity, and restoring force. In the method of manufacturing the polyurethane filter foam, the cell size of the filter foam is made regular by controlling the pressure by adjusting the diameter of the foaming head of a foaming machine, rather than adding a cell opener, cell irregularity caused by poor dispersion of the cell opener is alleviated, and air permeability, porosity, and compression set are excellent.

Abstract: The present invention relates to a composition for treating inflammatory diseases comprising germanium telluride nanosheets coated with polyvinylpyrrolidone, and the nanosheets have excellent anti-inflammatory and thus are excellent in treating inflammatory bowel disease and psoriasis.

Abstract: An air purifying apparatus includes an outer inlet which forms a flow path through which external air flows into the air purifying apparatus, an inner inlet which forms a flow path through which internal air flows into the air purifying apparatus, an outer outlet which forms a flow path through which air inside the air purifying apparatus is discharged to the outdoors, a charge part configured to ionize particles in the air flowing into the air purifying apparatus, a heat exchange dust collector configured to perform heat exchange between the air flowing into through the outer inlet and the air flowing into through the inner inlet, collect the ionized particles, and treat air inside the air purifying apparatus, and an inner outlet which forms a flow path through which the treated air is discharged into the indoors.

Abstract: A method and apparatus for controlling a vehicle are disclosed. The method comprises acquiring an acceleration of a front wheel and a rear wheel, determining that the front wheel is passing a bump of a road in response to determining that the acceleration of the front wheel is outside an acceleration range and fluctuates in the range wider than the acceleration range within a first maximum time period, determining that the rear wheel is passing the bump in response to determining that the acceleration of the rear wheel is outside the acceleration range and fluctuates in the range wider than the acceleration range within a second maximum time period, and in response to determining that the front wheel has passed the bump and the rear wheel is passing the bump, controlling a drive unit of the vehicle.

Abstract: An apparatus and method of processing a positioning reference signal are disclosed. In some embodiments, the method includes determining a narrow-band (NB) positioning reference signal (PRS) bitmap indicating a pattern selecting NB PRS subframes, wherein each NB PRS subframe comprises an NB PRS for positioning an NB user equipment (UE), transmitting, to the NB UE, NB PRS configuration information for the NB UE, the NB PRS configuration information comprising the NB PRS bitmap, determining, by a reference cell and based on the NB PRS bitmap, NB PRS subframes of the reference cell, mapping, by the reference cell, a first NB PRS in the NB PRS subframes of the reference cell, and receiving, from the NB UE and in response to the first NB PRS, a reference signal time difference (RSTD) measurement.

Abstract: A high-voltage battery control apparatus includes a plurality of high-voltage battery controllers configured to respectively monitor states of a plurality of high-voltage batteries included in one high-voltage battery pack depending on a predetermined period for monitoring the high-voltage battery pack, wherein the high-voltage battery controllers are configured to transition state of the plurality of high-voltage battery controllers together to an end state when a high-voltage battery controller among the high-voltage battery controllers, which has completed a monitoring operation, first waits until all monitoring operations of the high-voltage battery controllers that have not yet completed monitoring operations are completed and then all the monitoring operations of the high-voltage battery controllers are completed.

Abstract: A method of controlling tolerance to drought stress in a plant includes regulating expression of a gene encoding Oryza sativa branched-chain amino acid aminotransferase 2 (OsBCAT2) protein derived from rice in a plant cell. A genome-edited rice plant having enhanced tolerance to drought stress is prepared by carrying out genome editing by introducing guide RNA specific to target nucleotide sequence in a gene encoding OsBCAT2 protein, and endonuclease protein to a rice plant cell, and regenerating a plant from the genome-edited rice plant cell.

Abstract: Disclosed are a spinning dope for an aramid and carbon-nanotube composite fiber and a method of manufacturing an aramid and carbon-nanotube composite fiber using the same.

Abstract: A laundry dryer includes: a cabinet, a drum rotatably disposed inside the cabinet and configured to receive hot air and steam, a steam unit disposed inside the cabinet and configured to generate the steam, a storage tank configured to detachably couple to an inside of the cabinet and receive water to be supplied to the steam unit, a tank accommodating the storage tank, and a floater placed inside the storage tank and configured to move in a vertical direction according to a volume of water in the storage tank. The floater includes a body portion having a first outer surface and a second outer surface, a third outer surface and a fourth outer surface, and a fifth outer surface and a sixth outer surface, where the first outer surface defines an upper surface of the floater and the second outer surface defines a lower surface of the floater.

Abstract: An organic light emitting diode display device includes a substrate having an active area and a non-active area, a light emitting diode in the active area, a sealing layer over the light emitting diode, at least one lens pattern over the sealing layer, the at least one lens pattern having a convex shape, and a passivation layer in the active area and the non-active area, the passivation layer covering the at least one lens pattern and having a first open portion exposing a first pad area.

Abstract: A secondary battery includes: a can having an accommodation space therein; an electrode assembly accommodated in the accommodation space in the can; and a cap assembly sealed with the can. The can has a beading part recessed into a side wall of the can at a region below where the cap assembly is accommodated, and the beading part has an acute angle with respect to the side wall of the can.

Abstract: A mounting jig for manufacturing a tiling display device can include a supporting member, a plurality of jig magnets fixed to the supporting member, a hinge structure configured to rotate the plurality of jig magnets, and a guard rail configured to rotate in response to a rotation of the plurality of jig magnets, to reduce damage caused during detachment or attachment. The tiling display device includes a plurality of display devices disposed in the form of tiles. Each of the plurality of display devices includes a plurality of display elements, a plurality of circuits, a plurality of lines and a plurality of parts. The plurality of display elements can be a light emitting diode (LED) or a micro-LED including an n-type semiconductor layer, a p-type semiconductor layer, and a light emitting layer.

Abstract: An apparatus for manufacturing a secondary battery includes: an index table configured to receive a secondary battery cell, the secondary battery cell including an electrode assembly, a can accommodating the electrode assembly, and an electrode tab between the electrode assembly and the can to electrically connect the electrode assembly to the can; a laser scanner configured to irradiate laser onto an outer surface of the can to weld the electrode tab to the can; and a controller configured to variably control the laser scanner according to an operation of the index table.

Abstract: A method includes receiving, at a mobile device, resource pool configuration information, the resource pool configuration information comprising a bitmap to determine the resource pool and determining, for a period having a plurality of consecutive subframes, a first subset of subframes by excluding, from the plurality of consecutive subframes, subframes in which a sidelink synchronization signal (SLSS) resource is configured and subframes other than uplink subframes. The method also includes determining, for the period, a second subset of subframes by excluding, from the first subset of subframes, one or more subframes, wherein a quantity of the second subset of subframes corresponds to an integer multiple of a length of the bitmap, and determining, based on a plurality of repetitions of the bitmap, the resource pool for a sidelink transmission from the second subset of subframes.

Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure or by comprising a specific combination of compounds according to the present disclosure as a plurality of host materials, it is possible to produce an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.