Abstract: Disclosed is a porous structure including water-soluble chitosan; and a carboxymethyl cellulose-based compound, wherein a weight ratio of the water-soluble chitosan and the carboxymethyl cellulose-based compound is from 65:35 to 25:75, and a process for preparing the same.

Abstract: An example uniform resource locator (URL) information providing method includes obtaining a text from a document including location information and identifying the location information, transmitting an original URL corresponding to the identified location information to an external apparatus and receiving a shortened URL corresponding to the original URL, generating an optical recognition code corresponding to the received shortened URL and obtaining information related to a content provided from the original URL from the external apparatus based on the original URL, changing the document based on the shortened URL, the optical recognition code, and the information related to the content provided from the original URL, and generating the changed document as page description language data.

Abstract: Disclosed herein are an apparatus and method for providing 3D spatial data based on spatial random access. The method may include generating multiple groups of frames by grouping 3D spatial data based on an adjacent location in a space, compressing the 3D spatial data for each of the groups of frames, and encapsulating a compressed 3D spatial data bitstream for each of the groups of frames.

Abstract: A method of automatically generating AutoCAD drawings includes: generating a data sheet by using only input data which is necessary for generating drawings of a heat exchanger and obtained from strength calculation data provided by a strength calculation program; loading the data sheet by a loading unit; and generating AutoCAD drawings of the heat exchanger by activating an automatic AutoCAD drawing generation interface by a user's selection, the automatic AutoCAD drawing generation interface being activatable only after the data sheet may be loaded, wherein the input data includes both machine data and thermal data.

Abstract: Disclosed is a technology for transmitting 3D contents composed of point clouds. According to an aspect of the present disclosure, provided is an apparatus for transmitting 3D contents, including: an input configured to receive a point cloud to be converted into a 2D image; a global grid generator configured to create a global grid that determines a size of a 2D image to be converted from the point cloud; a point cloud converter configured to create a V3C bitstream in which the point cloud is converted to a 2D image of a size determined by the global grid based on V-PCC; and a grid information extractor configured to extract size information of the global grid from the V3C bitstream; an encapsulator configured to create ISOBMFF data based on the V3C bitstream and the extracted global grid size information; and a transmitter configured to transmit the ISOBMFF data.

Abstract: A microwave beam-forming antenna may include: a main reflector installed on one surface of an antenna body; an array feed horn installed on a center portion of the main reflector; a sub-reflector disposed to be spaced apart from the array feed horn on the main reflector; and a plurality of waveguide feeds respectively connected to a plurality of horn antennas arranged in the array feed horn.

Abstract: The present invention relates to a vaccine composition for prevention or treatment of chicken pox or Herpes zoster, the vaccine composition comprising a surface protein (gE) of Varicella zoster Virus and especially an aluminum salt as an adjuvant. The vaccine composition according to the present invention employs a protein antigen, thus showing greater outstanding stability than a live vaccine and has an optimized mixture ratio of adjuvants to elicit effective antibody induction, thereby being useful as a vaccine for preventing or treating Varicella zoster Virus-caused chicken pox or Herpes zoster.

Abstract: An array antenna capable of steering a beam in a first communication node of a wireless communication system may comprise: a plurality of single antennas each capable of variably adjusting a beam steering direction; a plurality of beamforming control units each of which is connected to each of the plurality of single antennas to control a beamforming operation of each of the plurality of single antennas; and an array antenna control unit connected to the plurality of beamforming control units to control a beamforming operation of the entire array antenna, wherein the plurality of single antennas are arranged in a cylindrical shape and are installed to face a direction opposite to a central direction of the cylinder shape, and the array antenna is configured to steer a beam to a predetermined area around the first communication node through at least one single antenna among the plurality of single antennas.

Abstract: An antigen variant and a use thereof are disclosed. The antigen variant is a protein, among surface proteins (gE) of the varicella zoster virus, exhibits a high expression level and high immunogenicity, and thus, when the antigen variant is used as a vaccine composition, the vaccine composition has more excellent safety compared to a live virus vaccine, and the antigen variant exhibits a higher expression level in a host cell compared to other antigens. The antigen variant is useful as a vaccine for preventing or treating chicken pox or herpes zoster caused by the varicella zoster virus.

Abstract: A method of automatically generating AutoCAD drawings includes: generating a data sheet by using only input data which is necessary for generating drawings of a heat exchanger and obtained from strength calculation data provided by a strength calculation program; loading the data sheet by a loading unit; and generating AutoCAD drawings of the heat exchanger by activating an automatic AutoCAD drawing generation interface by a user's selection, the automatic AutoCAD drawing generation interface being activatable only after the data sheet may be loaded, wherein the input data includes both machine data and thermal data.

Abstract: The present disclosure relates to an apparatus for mixing a resin composition for manufacturing a polishing pad including: a raw material mixer preparing a mixed raw material including a prepolymer and a foaming agent; a filter connected to the raw material mixer for filtering the mixed raw material; and a pad composition mixer connected to the filter to prepare a curable mixture including the mixed raw material after being filtered and a curing agent, wherein the raw material mixer includes a plurality of rotators having different rotation speeds.

Abstract: An adhesive film for a polishing pad including a plurality of through holes extended from a top surface to a bottom surface of the adhesive film, wherein a volume fraction of the plurality of through holes is 3% to 20% based on a total volume of the adhesive film, is disclosed.

Abstract: A method for transmitting signals using a high frequency based integrated circuit beamforming antenna is disclosed. The method may comprise transferring an output signal of a radio frequency (RF) module to an RF transceiving unit; transferring an output signal of the RF transceiving unit to a signal converting unit including a feeding pillar; and transferring a wave signal from the signal converting unit to a traveling wave antenna unit, and the feeding pillar may convert the output signal of the RF transceiving unit to the wave signal.

Abstract: A brake system may include a first hydraulic line; a second hydraulic line; a third hydraulic line; a fourth hydraulic line; a third switch valve; a fourth switch valve; a fifth hydraulic line; a sixth hydraulic line. The brake control unit can suppress a Vapor Lock even in a frequency brake operation in the section in which the downhill traveling from the highland to the flat is continued.

Abstract: An array antenna capable of steering a beam in a first communication node of a wireless communication system may comprise: a plurality of single antennas each capable of variably adjusting a beam steering direction; a plurality of beamforming control units each of which is connected to each of the plurality of single antennas to control a beamforming operation of each of the plurality of single antennas; and an array antenna control unit connected to the plurality of beamforming control units to control a beamforming operation of the entire array antenna, wherein the plurality of single antennas are arranged in a cylindrical shape and are installed to face a direction opposite to a central direction of the cylinder shape, and the array antenna is configured to steer a beam to a predetermined area around the first communication node through at least one single antenna among the plurality of single antennas.

Abstract: An image forming apparatus which obtains an installation file of an application from the outside when the installation file is not obtainable from the image forming apparatus during backup, and an operating method of the image forming apparatus, are provided. The image forming apparatus includes a memory, a communication interface, and at least one processor. The at least one processor determines whether an installation file of an application to be backed up is obtainable from the memory, obtains, when the installation file of the application to be backed up is not obtainable from the memory, the installation file of the application to be backed up from an external storage device or a server via the communication interface, and generates a backup file based on the obtained installation file.

Abstract: A direct current-to-direct current (DC-DC) converter providing multiple operation modes includes a buck power stage configured to lower an input voltage, a boost power stage configured to increase the input voltage, and a multi-mode controller configured to control the buck power stage and the boost power stage, wherein the multi-mode controller is configured to generate a signal to control the buck power stage and the boost power stage according to the input voltage and an output voltage, and control the buck power stage and the boost power stage using the signal.

Abstract: A system and method in which non-professionals can easily make the scope and detailed items of a project are disclosed. The system and method allow a home or building owner, who is not a professional in construction, to do a new construction and/or an addition to existing structure, remodeling, installation, replacement, and repair of a house or building.

Abstract: Disclosed is a tilting structure of a mobility device, the tilting structure including: a base frame; a tilting bar coupled to the base frame to be able to rotate in two side directions on a rotational center fixed to the base frame; front wheels having a rotary shaft fixed to steering knuckles vertically extending; first connection links each having a first end rotatably coupled to the steering knuckle and a second end rotatably coupled to the base frame; second connection links each having a first end rotatably coupled to the steering knuckle at a position spaced over or under the coupling position of the first connection link and a second end rotatably coupled at a position spaced apart from the rotational center of the tilting bar; and shock-absorbing members each having a first end fixed to the base frame and a second end connected to the steering knuckle, the first connection link, or the second connection link.

Abstract: According to various embodiments, an electronic device comprises a temperature sensor, a display, and a processor configured to operate by using a clock speed selected from among a plurality of clock speeds, wherein the processor may be configured to: execute a designated application by using one selected from among the plurality of clock speeds; check an external temperature by using the temperature sensor for at least some time during the execution of the designated application; when the external temperature falls to within a range of a first designated temperature, execute the designated application by using one selected from among the plurality of clock speeds according to a designated clock governor; and when the external temperature falls to within a range of a second designated temperature that is lower than the first designated temperature, execute the designated application by using one selected from among the plurality of clock speeds, except for some higher clock speeds, according to the designated