Abstract: The present disclosure provides a polyalkylene carbonate-based resin having excellent thermal stability, thereby having an improved heat shrinkage phenomenon, and a molded article produced using the same. The polyalkylene carbonate-based resin includes 100 parts by weight of a base resin including a polyalkylene carbonate resin and a polylactide resin, and 5 parts by weight to 10 parts by weight of a heat shrinkage prevention agent, wherein the base resin includes the polyalkylene carbonate resin and the polylactide resin in a weight ratio of 6:4 to 4:6, and the heat shrinkage prevention agent is one or more selected from the group consisting of a polyalkyl(meth)acrylate-based resin, a polyalphaolefin-vinyl acetate-based resin, and a polyoxyalkylene-based resin.

Abstract: Provided is a stack molding machine including an upper mold having formed therein a first runner and a first gate serving as a path of a resin material, a first intermediate plate provided under and combined with the upper mold, and having formed therein a first molding connected to the first gate to mold at least a portion on a first substrate placed under the first intermediate plate, a dummy plate provided under and spaced a certain distance apart from the first intermediate plate, a second intermediate plate provided under the dummy plate, and having formed therein a second molding connected to a second gate to mold at least a portion under a second substrate placed under the dummy plate, and a lower mold having formed therein a second runner and the second gate serving as a path of the resin material, and combined with the second intermediate plate.

Abstract: Disclosed is an aerosol-generating device which includes a power converter for supplying an alternating power to an induction coil, and controls switching elements in the power converter to change an operation mode of a power converter based on a temperature profile such that the power converter operates in a full bridge mode in a preheating section and operates in a half bridge mode in a smoking section.

Abstract: Disclosed is an aerosol-generating device which includes a power converter for supplying an alternating power to an induction coil, and controls switching elements in the power converter to change an operation mode of a power converter based on a temperature profile such that the power converter operates in a full bridge mode in a preheating section and operates in a half bridge mode in a smoking section.

Abstract: There is provided a semiconductor memory device comprising: a substrate; a base insulating film on an upper surface of the substrate; a plurality of first conductive patterns on the base insulating film and spaced apart from each other, wherein the plurality of first conductive patterns extend in a first direction; a spacer structure on a side surface of each of the plurality of first conductive patterns; a barrier metal film on a side surface of the spacer structure, wherein the barrier metal film extends through the base insulating film to be electrically connected to the substrate; a filling metal film on the barrier metal film, wherein the filling metal film fills at least a portion of a space between adjacent ones of the plurality of first conductive patterns; and a capacitor structure on the filling metal film, wherein the capacitor structure is electrically connected to the filling metal film.

Abstract: An embodiment vibration motor assembly of a seat includes a vibration motor and an upper housing disposed around the vibration motor to hold and fix the vibration motor, the upper housing configured to be fixed to a pad of the seat, and the upper housing including a holding part disposed at a circumference of a front surface of the upper housing to hold a circumference of the vibration motor and a fixing part protruding from a rear surface of the upper housing to cover and fix a rear surface of the vibration motor.

Abstract: Disclosed are a raw material supply method including vaporizing a raw material in a canister, discharging the vaporized raw material, measuring an inner temperature of the canister, calculating a calculated temperature by using the inner temperature, and compensating a variation of the inner temperature by heating a heating unit disposed on the canister at the calculated temperature and a raw material supply apparatus applied to the method for supplying the raw material. The raw material supply method and apparatus may stably supply the vaporized raw material to a process space.

Abstract: Provided is a mold for a seat pad with a mesh fixed, which can easily fix a mesh to be inserted in a molding process. The mold includes a plurality of mold members overlapping each other and molding a seat pad by foaming a resin injected into a space formed between the mold members, the mold members are formed with a mesh accommodating groove accommodating a mesh, and the mesh is fitted into and fixed to the mesh-accommodating groove.

Abstract: The present invention relates to a thyristor having a vertical structure and a cross-point memory array including the same. The thyristor having a vertical structure according to one embodiment may include a semiconductor core with an insulating film formed on the outer peripheral surface thereof, and a plurality of metal layers formed on the insulating film. In the semiconductor core, at least one layer of a base layer and an emitter layer may be formed on a region corresponding to each of the metal layers based on the charge plasma phenomenon due to the difference in work function with the metal layers.

Abstract: Provided are a die pickup module and a die bonding apparatus including the same. The die pickup module includes a wafer stage for supporting a wafer including dies attached on a dicing tape, a die ejector arranged under the dicing tape and for separating a die to be picked up from the dicing tape, a non-contact picker for picking up the die in a non-contact manner so as not to contact a front surface of the die, a vertical driving unit for moving the non-contact picker in a vertical direction to pick up the die and an inverting driving unit for inverting the non-contact picker to invert a die picked up by the non-contact picker.

Abstract: A mesh integrated seat pad assembly delivers vibration output from a massage module to the entire seat pad to prevent the vibration from being reduced by the pad. The mesh integrated seat pad assembly includes a pad provided in a seatback supporting the back of a passenger or a seat cushion supporting the hip and the thigh of the passenger to provide additional comfort to the passenger, a mesh mounted on one side surface of the pad, and a massage module installed to be in contact with the mesh.

Abstract: The present disclosure relates to a method for separating an organozinc catalyst from a polyalkylene carbonate polymerization solution, and the method of the present disclosure includes: stirring and aging a polymerization solution including a polyalkylene carbonate resin, an organozinc catalyst, an alkylene oxide and a polymerization solvent; and filtering the polymerization solution after completing the aging.

Abstract: A damper for a vehicle seat includes a vibrating mass member assembly including a vibrating mass member and a fixing member protruding from a side of the vibrating mass member, a guide bush accommodating the fixing member therein, coupled to each of the both sides of the vibrating mass member, and guiding the vibrating mass member to move in all directions, and a mounting bracket having an insertion hole into which the guide bush is inserted and fixedly formed on the vehicle seat. The damper may include an additional fixing member protruding from another side of the vibrating mass member, such that the fixing member and the additional fixing member protrude from both sides of the vibrating mass member.

Abstract: A method of preparing a positive electrode active material for a lithium secondary battery includes mixing a transition metal hydroxide containing transition metals including nickel (Ni), cobalt (Co) and manganese (Mn), a lithium-containing raw material and a doping raw material including at least one doping element selected from the group consisting of Al, Mg, Co, V, Ti, Zr and W and performing a first calcination treatment thereon to prepare a lithium composite transition metal oxide doped with the doping element; and mixing the lithium composite transition metal oxide and a coating raw material including at least one coating element selected from the group consisting of Al, Mg, Co, Ti, Zr and B and performing a second calcination treatment thereon to prepare a positive electrode active material in which a coating layer containing the coating element is formed on the lithium composite transition metal oxide.

Abstract: An apparatus for changing positions of a seat for vehicles includes mechanisms for adjusting the height of the seat for vehicles, adjusting reclining of the seat for vehicles, changing the seat for vehicles into a knee rest posture and changing the seat for vehicles into a relaxed comfort are integrated into one structure. Accordingly, a user selectively implements adjustment of the height of the seat for vehicles, adjustment of reclining of the seat for vehicles, change into the knee rest posture, and change into the relaxed comfort posture, etc., through operation of the switch.

Abstract: An open space type headrest is applied to a vehicle seat in which a covering, which surrounds a foam pad of a volume body positioned on a mounting cover of a flat body coupled to a front surface of an exterior cover formed of a protrusion body, is fixed to the mounting cover, and opening spaces are formed in the exterior cover, the mounting cover, and the foam pad to enlarge front viewing of a rear passenger due to a see-through characteristic of a mesh fabric of the covering.

Abstract: Disclosed is an aerosol-generating device which includes a power converter for supplying an alternating power to an induction coil, and controls switching elements in the power converter to change an operation mode of a power converter based on a temperature profile such that the power converter operates in a full bridge mode in a preheating section and operates in a half bridge mode in a smoking section.

Abstract: An apparatus for analyzing a substance of an object in a non-invasive manner is provided. The apparatus for analyzing a substance of an object includes: a sensor part including an image sensor, and a plurality of light sources disposed around the image sensor; and a processor configured to drive the plurality of light sources to obtain absorbance of each pixel of the image sensor based on an intensity of light received by each pixel, to correct the absorbance of each pixel based on a distance between the plurality of light sources and each pixel, and to analyze a substance of an object based on the corrected absorbance of each pixel.

Abstract: A sealing apparatus is disclosed. In some implementations, the sealing apparatus includes a process chamber having an internal space, a cell loading portion configured to load a plurality of battery cells and enter the internal space of the process chamber, a plurality of sealing units disposed in the internal space of the process chamber, the plurality of sealing units configured to partially seal the battery cells, respectively, and a driving portion configured to move the plurality of sealing units such that the plurality of sealing units come into contact with the plurality of battery cells, respectively.

Abstract: The present disclosure relates to an organic compound including at least one fused hetero aromatic moiety with at least one nitrogen atom linked to a triazine moiety directly or through a linking group and a benzothiazole moiety linked to the triazine moiety, and substituted with at least one of deuterium and a deuterium-substituted group, an organic light emitting diode and an organic light emitting device having the organic compound. The organic light emitting diode and the organic light emitting device where an emissive layer includes the organic compound have beneficial luminous efficiency and luminous lifespan.