Abstract: The present invention relates to a method of preparing a polymer, which includes: adding a first reaction solution including an aqueous solvent and a monomer mixture including an alkyl-substituted aromatic vinyl-based monomer, an alkyl-unsubstituted aromatic vinyl-based monomer, and a vinyl cyanide-based monomer to a reactor and initiating polymerization; and performing polymerization by continuously adding an alkyl-substituted aromatic vinyl-based monomer to the reactor, wherein the first reaction solution satisfies Expression 1 (see the description of the invention).

Abstract: Embodiments relate to a Brillouin distributed optical fiber sensor including a first light source to output a first light having a modulated intensity at a preset frequency, an optical modulation unit to generate Brillouin probe light and Brillouin pump light using the first light and apply the Brillouin probe light and the Brillouin pump light to one end and the other end of a test optical fiber, respectively, a second light source to apply a second light with a frequency that is different from a frequency of the first light to one end of the test optical fiber in a direction opposite to the Brillouin pump light, and an optical detection unit to detect Brillouin scattered light generated by interaction between the Brillouin pump light and the Brillouin probe light in the test optical fiber.

Abstract: Provided is a polymer production method including: batch-adding a reaction solution including a monomer mixture including a maleimide-based monomer, a vinyl aromatic monomer, and a vinyl cyanide-based monomer and an aqueous solvent to a reactor and initiating polymerization; and carrying out the polymerization while continuously adding the maleimide-based monomer and the aqueous solvent to the reactor, wherein the reaction solution satisfies the above Formula 1.

Abstract: A battery pack includes a cell unit stack in which a plurality of cell units are stacked; a pack case accommodating the cell unit stack in an internal space; and a side wall located at an end of the cell unit stack in the internal space of the pack case and configured to support the pack case. The plurality of cell units are stacked in at least one direction within the cell unit stack, and the cell unit includes one or more pouch-type battery cells and a cell cover configured to at least partially surround the pouch-type battery cells.

Abstract: Provided is a battery pack and a vehicle including the same. The battery pack includes a plurality of pouch-type battery cells, a pack case having an inner space in which the plurality of pouch-type battery cells are accommodated, and a cell cover at least partially surrounding and supporting at least some of the plurality of pouch-type battery cells. The cell cover includes a first cover portion covering one side surface of at least one of the plurality of battery cells, a second cover portion covering the other side surface of at least one of the plurality of battery cells, and a third cover portion connecting the first cover portion to the second cover portion and covering an upper end portion of the at least one battery cell. A first venting hole through which gas or flame is discharged is formed in at least one portion of the third cover portion.

Abstract: A battery pack includes a plurality of pouch-type battery cells; a pack case accommodating the pouch-type battery cells in the internal space; and a cell cover. The cell cover includes two unit covers at least partially spaced apart, provided to at least partially surround at least some of the pouch-type battery cells among the plurality of pouch-type battery cells in the internal space of the pack case. The cell cover is configured to allow venting gas to be discharged into the separation space between the two unit covers, thereby ensuring excellent safety when a thermal event occurs. Moreover, the present application discloses a battery module and a vehicle including the same.

Abstract: An embodiment relates to an ultrasonic probe device for an endoscopy device, the ultrasonic probe device being coupled to a leading end of a tube of an endoscopy device to generate ultrasonography information. According to the embodiment, the ultrasonic probe device for an endoscopy device includes a tube mounting part mounted at a leading end of a tube of an endoscopy device, and an ultrasonic module coupled to the tube mounting part and configured to generate ultrasonography information.

Abstract: A cell assembly according to the present disclosure includes a cell stack including one pouch-type battery cell or two or more pouch-type battery cells stacked; and a cell cover covering two side portions of the cell stack along a widthwise direction of the cell stack and a top portion of the cell stack, wherein the cell cover is configured to adjust a width of the cell cover according to a width of the cell stack.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit position information regarding a position of the UE and camera information captured by the UE. The UE may receive a radio frequency (RF) map, wherein the RF map is associated with the position information. The UE may transmit information indicating an update to the RF map. Numerous other aspects are described.

Abstract: A battery pack of the present disclosure includes a plurality of pouch-type battery cells; a pack case accommodating the plurality of pouch-type battery cells in an inner space; and a cell cover configured to partially surround the outer side of at least one pouch-type battery cell among the plurality of pouch-type battery cells to form an opening, wherein the pack case includes a flame-retardant portion on the side where the opening is located.

Abstract: Techniques for sharing perception information between a first device and a second device are disclosed. In some embodiments, the first device may be a user equipment (UE), and the second device may be a wearable device (e.g., smart glasses). An example method of sharing perception information may include obtaining one or more measurements indicative of a motion or a position of the first device; obtaining one or more measurements indicative of a motion or a position of the second device; and receiving perception information responsive to a verification that a condition relating to the first device and the second device is established, the verification of the condition being based on the one or more measurements indicative of the motion or the position of the first device and the one or more measurements indicative of the motion or the position of the second device.

Abstract: Provided is a battery pack configured to ensure structural stability even when a thermal event occurs and a vehicle including the battery pack. A battery pack according to an aspect of the present disclosure includes battery cells stacked along a left-right direction including electrode leads extending along a front-back direction, a pack case in which the battery cells are accommodated, and a partition wall extending along the left-right direction between the pack case and the battery cells The partition wall is closed in the front-back direction and being open in the left-right direction.

Abstract: A battery cell block includes a plurality of cell units including one or more pouch-type battery cells and a cell cover configured to surround the one or more pouch-type battery cells, the plurality of cell units being stacked in at least one direction, and a fixing member configured to fix a stacked state of the plurality of cell units by surrounding a stack of the plurality of cell units. A battery pack including the battery cell block, and a vehicle including the same, are also provided.

Abstract: A battery cell assembly is provided. The battery cell assembly includes at least one pouch-type battery cell including an electrode lead, a cell cover surrounding the at least one pouch-type battery cell and having a front open end or a rear open end, a bus bar connected to the electrode lead of the at least one pouch-type battery cell, a bus bar frame supporting the bus bar and covering the front open end or the rear open end of the cell cover where the electrode lead is located, and a flame blocking member including a mesh net formed of a material with high rigidity and high heat resistance coupled to a body of the bus bar.

Abstract: A battery pack including a plurality of cell units stacked in a first direction, each cell unit including a cell stack including one battery cell or a plurality of battery cells stacked and a cell cover accommodating the cell stack; and a pack case comprising a pack tray on which the plurality of cell units are seated and a pack cover covering the plurality of cell units and coupled to the pack tray, wherein the cell cover has a top open portion and the pack cover has a fire extinguishing material input zone to feed a fire extinguishing material into the cell cover through the top open portion of the cell cover, and wherein at least a portion of the fire extinguishing material input zone is configured to be heat-melted so that the fire extinguishing material is fed into the cell cover.

Abstract: The present invention relates to a method for producing a copolymer, the method for producing a copolymer including: step (S10) for adding aromatic vinyl-based monomers substituted with alkyl groups and vinyl cyan-based monomers to perform polymerization in the presence of a polymerization initiator, wherein the vinyl cyan-based monomers are collectively added before initiation of the polymerization in step (S10), monomer droplets are continuously divisionally added during the polymerization in step (S10), and the monomer droplets contain part or all of the aromatic vinyl-based monomers substituted with alkyl groups, and relates to a copolymer produced therefrom, and a thermoplastic resin composition including the same.

Abstract: A battery pack including a plurality of pouch-type battery cells having a plurality of electrode leads; a pack case accommodating the plurality of pouch-type battery cells in an inner space; a cell cover configured to surround a portion of at least one of the plurality of pouch-type battery cells; a bus bar assembly configured to connect to an electrode lead of at least one of the plurality of pouch-type battery cells surrounded by the cell cover; and an end cover coupled to one side of the bus bar assembly.

Abstract: Provided is a method of operating a central control device for generating a transmission signal to be transmitted to a plurality of user equipment through a plurality of base stations, the method including calculating a transmission power coefficient and a codebook parameter, such that a minimum value of a data rate of each of the plurality of user equipment is maximized, and a transmission power of the plurality of base stations is less than or equal to a transmission power limit and satisfies a fronthaul capacity limit, generating, by the central control device, a transmission signal based on the transmission power coefficient, and transmitting, by the central control device, the transmission signal to the plurality of base stations through a fronthaul.

Abstract: The present disclosure relates to a method of preparing a polymer, which includes: adding an alkyl-substituted aromatic vinyl-based monomer and a vinyl cyanide-based monomer to a reactor and initiating polymerization; and performing polymerization while continuously adding an alkyl-substituted aromatic vinyl-based monomer and a multifunctional initiator to the reactor, wherein the continuous addition of the alkyl-substituted aromatic vinyl-based monomer and the multifunctional initiator is initiated when a polymerization conversion rate is 10 to 30%, and the continuous addition of the alkyl-substituted aromatic vinyl-based monomer and the multifunctional initiator is terminated when a polymerization conversion rate is 70 to 80%.

Abstract: Provided is a super-heat-resistant alloy consisting of aluminum (Al): 4.0 wt % to 5.2 wt %, cobalt (Co): 1.0 wt % to 10.0 wt %, chromium (Cr): 5.0 wt % to 8.0 wt %, molybdenum (Mo): 0.5 wt % to 2.0 wt %, tantalum (Ta): 7.0 wt % to 10.0 wt %, titanium (Ti): 0 wt %<Ti?1.5 wt %, tungsten (W): 7.0 wt % to 10.5 wt %, and nickel (Ni): balance, and not containing rhenium (Re).