Abstract: A method of transmitting a Physical Layer Convergence Procedure (PLCP) frame in a Very High Throughput (VHT) Wireless Local Area Network (WLAN) system includes generating a MAC Protocol Data Unit (MPDU) to be transmitted to a destination station (STA), generating a PLCP Protocol Data Unit (PPDU) by adding a PLCP header, including an L-SIG field containing control information for a legacy STA and a VHT-SIG field containing control information for a VHT STA, to the MPDU, and transmitting the PPDU to the destination STA. A constellation applied to some of Orthogonal Frequency Division Multiplex (OFDM) symbols of the VHT-SIG field is obtained by rotating a constellation applied to an OFDM symbol of the L-SIG field.

Abstract: Disclosed herein is a radio frequency filter having a notch structure. The radio frequency filter includes a hollow housing having a plurality of partition walls defining a plurality of cavities and an open surface formed on one side, a cover configured to shield the open surface of the housing, a plurality of resonance elements positioned in the cavities of the housing, a coupling substrate arranged to cross a partition wall between at least two of the plurality of resonance elements, and a tuning screw inserted into the housing through the cover. The partition wall crossed by the coupling substrate includes a support window formed to have a first depth from the open surface, the coupling substrate being arranged through the support window, and a tuning window formed to have a second depth greater than the first depth from the open surface, the tuning screw being inserted into the tuning window.

Abstract: A SLA 3D printer according to the present disclosure includes: a plurality of molding plates; at least one molding plate mover configured to control movement of the plurality of molding plates; at least one resin container in which the plurality of molding plates and photocurable liquid resin are accommodated; a light source configured to cure the liquid resin; and an optical path changer configured to change an optical path, wherein, when one of the plurality of molding plates is being moved by the at least one molding plate mover, the optical path changer changes the optical path so that another molding plate that is not being moved is irradiated with light from the light source.

Abstract: An air conditioning system for a vehicle may include a refrigerant line through which a refrigerant circulates and an evaporator and a condenser are connected to each other; and a first core and a second core for indoor air conditioning, wherein the first core includes a first inlet and a first outlet through which a coolant passing through the evaporator is introduced and discharged, respectively, the second core includes a second inlet and a second outlet through which a coolant passing through the condenser is introduced and discharged, respectively, and the first core and the second core are connected to each other through a connection line, and the connection line is provided with a first valve selectively connecting the first core and the second core through the connection line.

Abstract: A vehicle air conditioning system is provided and includes a heating duct through which internal air and external air are introduced and a cooling duct through which internal air and external air are introduced. A condenser is disposed in the heating duct and an evaporator is disposed in the cooling duct and is connected to the condenser. A phase change material (PCM) stores thermal energy of the internal air passing through the heating and cooling ducts. An internal/external air door controls the mixing of the internal/external air introduced into the heating and cooling ducts, and a PMC door controls the external air introduced through the heating and cooling ducts whether to pass through the PCM.

Abstract: An integrated flexible thermoelectric device includes p-type carbon nanoparticle regions and n-type carbon nanoparticle regions which are alternately and continuously connected to each other. In particular, the p-type carbon nanoparticle regions and the n-type carbon nanoparticle regions are formed on the one carbon nanoparticle paper.

Abstract: An electronic device includes a processor, and a memory. The memory may store instructions that, cause the processor to display a user interface including items, receive a first user utterance while the user interface is displayed, wherein the first user utterance includes a first request for executing a first task by using at least one item, transmit first data related to the first user utterance to an external server, receive a first response from the external server, wherein the first response includes information on a first sequence of states of the electronic device for executing the first task and further includes numbers and locations of the items in the user interface, and execute the first task including an operation of allowing the application program to select the one or the plurality of items based on the numbers or the locations.

Abstract: A cavity-type radio frequency filter is disclosed. the radio frequency filter having a cavity structure including an enclosure, a resonant element, a cover, a frequency tuning screw, and a resilient fixing member. The enclosure has a hollow inside and an open surface on one side to have a cavity. The resonant element is positioned in the hollow of the enclosure. The cover has a screw hole having a preset diameter at a position corresponding to the resonant element, and is configured to seal the open surface of the enclosure. The frequency tuning screw is configured to be screwed into the screw hole of the cover, and it has an upper end formed at least partially with a latching abutment that protrudes outwardly.

Abstract: A heat dissipating coating composition is provided. A heat dissipating coating composition according to an embodiment of the present disclosure includes a coating layer forming component including a main resin. The heat dissipating coating composition also includes a carbon-based filler including 8 to 72 parts by weight with respect to 100 parts by weight of the main resin and a physical property enhancing component for improving heat dissipating and adhering properties. Accordingly, a heat dissipating coating layer having excellent heat dissipating performance can be realized by having not only good heat conductivity but also good heat radiation.

Abstract: An armrest apparatus for a vehicle includes: a lower arm located on a side surface of a seat and configured to rotate with respect to the seat by power of a lower arm motor; and an upper arm extending along a lengthwise direction of the lower arm and configured to rotate with respect to the lower arm by power of an upper arm motor.

Abstract: The present disclosure relates to a series of preparation methods including extraction, separation, purification, and commercialization of ferulic acid, which is a highly functional material from corn brans (a by-product of grain), and more specifically, to a preparation method wherein ferulic acid is extracted from corn brans (a by-product of grain) in high yield by a novel method, and the extracted ferulic acid is separated and purified in high yield and high purity by an economical method, followed by commercialization.

Abstract: Provided is a novel compound derived from allulose and a composition comprising the same and having acid resistance.

Abstract: A method for transmitting uplink signals comprises multiplexing data and first type control information to output multiplexed signals; mapping the multiplexed signals to a resource region matrix; mapping second type control information to the resource region matrix to overwrite some of the multiplexed signals mapped to specific positions of the resource region matrix corresponding to symbols which are near symbols used for reference signals; and transmitting an output sequence of the resource region matrix to the base station. The second type control information comprises at least one of an ACK/NACK information and a rank indicator (RI), and the first type control information comprises control information other than the rank indicator (RI) and the ACK/NACK information.

Abstract: The present invention relates to a cavity filter and, in particular, provides an advantage of preventing performance deterioration of an antenna device by efficiently absorbing an assembly tolerance which may occur due to assembly design and preventing an interruption of an electrical flow, by comprising: an RF signal connecting part provided to be spaced apart at a predetermined distance from an external member having an electrode pad formed on one surface thereof; a terminal part which electrically connects the electrode pad of the external member to the RF signal connecting part, while absorbing an assembly tolerance existing within the predetermined distance and simultaneously preventing an interruption of an electrical flow between the electrode pad and the RF signal connecting part; a dielectric body which is inserted into a terminal insertion hole so as to surround the outside of the terminal part; and an elastic member which has a portion of the edge supported by the dielectric body and which elastica

Abstract: Discussed is an apparatus for manufacturing a unit cell of a battery, the apparatus including: a center electrode reel from which a center electrode is unwound; an upper separator reel from which an upper separator laminated on a top surface of the center electrode is unwound; a lower separator reel from which a lower separator laminated on a bottom surface of the center electrode is unwound; and a magnetic force generation part disposed above or below a first laminate to apply magnetic force to the first laminate, the first laminate including the lower separator, the center electrode, and the upper separator that are sequentially laminated.

Abstract: A method of acquiring information on a resource region for transmitting PHICH and a method of receiving PDCCH using the same are disclosed. The resource region for transmitting the PHICH can be specified by first information corresponding to the per-sub frame PHICH number and second information corresponding to a duration of the PHICH within the subframe. The first Information can be specified into a form resulting from multiplying a predetermined basic number by a specific constant. And, the specific constant can be transmitted via PBCH. Moreover, the second information can be acquired from the PBCH as well.

Abstract: An acoustic resonator includes: an upper electrode including a first active region disposed on an upper portion of a piezoelectric layer, and a first extended region extended from the first active region; a lower electrode including a second active region disposed on a lower portion of the piezoelectric layer, and a second extended region extended from the second active region; a first metal layer including a first resistance reduction region disposed on the first extended region; and a second metal layer including a second resistance reduction region disposed on the second extended region. The first metal layer includes a first conductive link region extended from the first resistance reduction region. The second metal layer includes a second conductive link region extended from the second resistance reduction region. The first and second conductive link regions correspond to respective portions of a side boundary of the first and second active regions.

Abstract: A method for manufacturing a high-strength steel bar can include the steps of: reheating a steel slab at a temperature ranging from 1000° C. to 1100° C., the steel slab including a certain amount of carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), chromium (Cr), copper (Cu), nickel (Ni), molybdenum (Mo), aluminum (Al), vanadium (V), nitrogen (N), antimony (Sb), tin (Sn), and iron (Fe) and other inevitable impurities, The method can further include finish hot-rolling the reheated steel slab at a temperature of 850° C. to 1000° C., and cooling the hot-rolled steel to a martensite transformation start temperature (Ms (° C.)) through a tempcore process.

Abstract: The present application relates to a method for producing D-psicose, the method comprising the steps of: putting a composition containing a D-psicose borate complex into a chromatography comprising divalent cations; and separating the composition containing the D-psicose borate complex into a D-psicose-containing fraction (i) and a borate-containing fraction (ii).