Abstract: The present application relates to a sweetener including an oligosaccharide having increased acid resistance, a food composition including the same, and a method of increasing acid resistance of an oligosaccharide of an oligosaccharide-containing sweetener including applying allulose to the oligosaccharide.

Abstract: Disclosed is an ionomer for a high-temperature polymer electrolyte membrane fuel cell, which includes a phosphorus (P)-containing functional group having proton conductivity and partially contains fluorine in the main chain thereof.

Abstract: There are provided a method for designing a mechanical apparatus and a device using the same. A method for acquiring shape information of a mechanical apparatus based on target performance information according to an embodiment may include: acquiring a first target performance parameter and a second target performance parameter of the mechanical apparatus; acquiring first shape information by using a first model based on the first target performance parameter and the second target performance parameter; acquiring a first prediction performance parameter by using a second model based on the first shape information; and updating the first model based on at least one of the first target performance parameter, the second target performance parameter or the first prediction performance parameter.

Abstract: The present invention provides a glass wool cutting device. The device includes a cutting section housing that has a cutting section chamber, a feed port that is connected to the cutting section chamber, and a discharge port that is connected to the cutting section chamber. A stationary knife is disposed on the cutting section housing to protrude into the cutting section chamber and a movable cutter that has a rotary support body is disposed in the cutting section chamber and a movable knife is supported on the rotary support body to apply a shearing force to the glass wool together with the stationary knife. Additionally, a cutter actuator provides a driving force to the rotary support body.

Abstract: A polypropylene composite resin composition includes: 30 to 70% by weight of high crystalline block copolymer polypropylene, based on the total weight of the polypropylene composite resin composition; 10 to 20% by weight of a rubber elastomer, based on the total weight of the polypropylene composite resin composition; 10 to 18% by weight of a reinforcing material, based on the total weight of the polypropylene composite resin composition; 2 to 4% by weight of a mercaptosilane coupling agent, based on the total weight of the polypropylene composite resin composition; and 1 to 5% by weight of a slip agent, based on the total weight of the polypropylene composite resin composition.

Abstract: A macromolecular photonic crystal material including an A block and a B block is disclosed. the A block comprises a crystalline polyhedral oligomeric POSS, the macromolecular photonic crystal material represented by the structural formula 1.

Abstract: A polypropylene composite resin composition and an automotive interior part molded using the polypropylene composite resin composition are provided herein. The polypropylene composite resin composition contains: (a) an easily injection moldable polypropylene polymer, (b) a thermoplastic elastomer for improving impact resistance, (c) a platy inorganic filler surface-treated with an organosilane having affinity for a phytoncide, (d) a phytoncide having deodorizing capability and aromaticity, (e) a processing oil preventing pyrolysis of the phytoncide, and (f) a surfactant for improving the compatibility between the base resin and the phytoncide at specific compositional ratios. The automotive interior part molded using the polypropylene composite resin composition disclosed herein provides a pleasant environment for drivers by removing the offensive odor from volatile organic compounds (VOCs), etc. and maintaining the intrinsic scent of the phytoncide for a long time.

Abstract: The present invention provides a glass wool cutting device. The device includes a cutting section housing that has a cutting section chamber, a feed port that is connected to the cutting section chamber, and a discharge port that is connected to the cutting section chamber. A stationary knife is disposed on the cutting section housing to protrude into the cutting section chamber and a movable cutter that has a rotary support body is disposed in the cutting section chamber and a movable knife is supported on the rotary support body to apply a shearing force to the glass wool together with the stationary knife. Additionally, a cutter actuator provides a driving force to the rotary support body.

Abstract: An electronic device includes a biomedical sensor configured to generate a first signal by detecting a biomedical signal, a motion sensor configured to generate a second signal by detecting a motion, and a communication interface configured to provide a secure communication channel with another electronic device, and receive a third signal through the secure communication channel. The electronic device further includes a controller configured to generate a secret key for the secure communication channel, based on the first signal, and determine whether to perform a predetermined function, based on the second signal and the received third signal.

Abstract: A polypropylene composite resin composition includes: 30 to 70% by weight of high crystalline block copolymer polypropylene, based on the total weight of the polypropylene composite resin composition; 10 to 20% by weight of a rubber elastomer, based on the total weight of the polypropylene composite resin composition; 10 to 18% by weight of a reinforcing material, based on the total weight of the polypropylene composite resin composition; 2 to 4% by weight of a mercaptosilane coupling agent, based on the total weight of the polypropylene composite resin composition; and 1 to 5% by weight of a slip agent, based on the total weight of the polypropylene composite resin composition.

Abstract: A macromolecular photonic crystal material including an A block and a B block is disclosed. the A block comprises a crystalline polyhedral oligomeric POSS, the macromolecular photonic crystal material represented by the structural formula 1.

Abstract: A polypropylene complex resin composition for low-temperature injection molding, may include (A) a polypropylene resin; (B) an olefin-based elastomer; (C) an inorganic reinforcing agent; and (D) an additive, wherein (A) the polypropylene resin is a polypropylene mixed resin including: about 100 parts by weight of (A-1) a high-crystalline ethylene-propylene copolymer having an isotactic index of about 98 to 100% and a melt flow index value of about 20 to 50 g/10 min (2.16 kg, 230° C.); and about 5 to 20 parts by weight of (A-2) an ultrahigh fluidity homopolypropylene having a melt flow index value of about 1,000 to 1,800 g/10 min (2.16 kg, 230° C.).

Abstract: A vertical take-off and landing aircraft using a hybrid electric propulsion system includes an engine, a generator that produces electric power using power supplied by the engine, and a battery that stores the produced electric power. A motor receives the electric power stored in the battery and electric power produced by the generator but not stored in the battery and provides the power to a thrust generating apparatus. A controller selects either silence mode or normal mode, and determines the amount of electric power stored in the battery and the amount of electric power not stored in the battery from the electric power supplied to the motor. In the silence mode, the controller supplies only the electric power stored in the battery and controls a duration by adjusting output power of motor. In the normal mode, the controller supplies electric power not stored in the battery.

Abstract: A vertical take-off and landing aircraft using a hybrid electric propulsion system includes an engine, a generator that produces electric power using power supplied by the engine, and a battery that stores the produced electric power. A motor receives the electric power stored in the battery and electric power produced by the generator but not stored in the battery and provides the power to a thrust generating apparatus. A controller selects either silence mode or normal mode, and determines the amount of electric power stored in the battery and the amount of electric power not stored in the battery from the electric power supplied to the motor. In the silence mode, the controller supplies only the electric power stored in the battery and controls a duration by adjusting output power of motor. In the normal mode, the controller supplies electric power not stored in the battery.

Abstract: A vertical take-off and landing aircraft using a hybrid electric propulsion system includes an engine, a generator that produces electric power using power supplied by the engine, and a battery that stores the produced electric power. A motor receives the electric power stored in the battery and electric power produced by the generator but not stored in the battery and provides the power to a thrust generating apparatus. A controller selects either silence mode or normal mode, and determines the amount of electric power stored in the battery and the amount of electric power not stored in the battery from the electric power supplied to the motor. In the silence mode, the controller supplies only the electric power stored in the battery and controls a duration by adjusting output power of motor. In the normal mode, the controller supplies electric power not stored in the battery.

Abstract: A vertical take-off and landing aircraft using a hybrid electric propulsion system includes an engine, a generator that produces electric power using power supplied by the engine, and a battery that stores the produced electric power. A motor receives the electric power stored in the battery and electric power produced by the generator but not stored in the battery and provides the power to a thrust generating apparatus. A controller selects either silence mode or normal mode, and determines the amount of electric power stored in the battery and the amount of electric power not stored in the battery from the electric power supplied to the motor. In the silence mode, the controller supplies only the electric power stored in the battery and controls a duration by adjusting output power of motor. In the normal mode, the controller supplies electric power not stored in the battery.

Abstract: A polypropylene composite resin composition and an automotive interior part molded using the polypropylene composite resin composition are provided herein. The polypropylene composite resin composition contains: (a) an easily injection moldable polypropylene polymer, (b) a thermoplastic elastomer for improving impact resistance, (c) a platy inorganic filler surface-treated with an organosilane having affinity for a phytoncide, (d) a phytoncide having deodorizing capability and aromaticity, (e) a processing oil preventing pyrolysis of the phytoncide, and (f) a surfactant for improving the compatibility between the base resin and the phytoncide at specific compositional ratios. The automotive interior part molded using the polypropylene composite resin composition disclosed herein provides a pleasant environment for drivers by removing the offensive odor from volatile organic compounds (VOCs), etc. and maintaining the intrinsic scent of the phytoncide for a long time.

Abstract: A vertical take-off and landing aircraft using a hybrid electric propulsion system includes an engine, a generator that produces electric power using power supplied by the engine, and a battery that stores the produced electric power. A motor receives the electric power stored in the battery and electric power produced by the generator but not stored in the battery and provides the power to a thrust generating apparatus. A controller selects either silence mode or normal mode, and determines the amount of electric power stored in the battery and the amount of electric power not stored in the battery from the electric power supplied to the motor. In the silence mode, the controller supplies only the electric power stored in the battery and controls a duration by adjusting output power of motor. In the normal mode, the controller supplies electric power not stored in the battery.

Abstract: An electronic device includes a biomedical sensor configured to generate a first signal by detecting a biomedical signal, a motion sensor configured to generate a second signal by detecting a motion, and a communication interface configured to provide a secure communication channel with another electronic device, and receive a third signal through the secure communication channel. The electronic device further includes a controller configured to generate a secret key for the secure communication channel, based on the first signal, and determine whether to perform a predetermined function, based on the second signal and the received third signal.

Abstract: A vertical take-off and landing aircraft using a hybrid electric propulsion system includes an engine, a generator that produces electric power using power supplied by the engine, and a battery that stores the produced electric power. A motor receives the electric power stored in the battery and electric power produced by the generator but not stored in the battery and provides the power to a thrust generating apparatus. A controller selects either silence mode or normal mode, and determines the amount of electric power stored in the battery and the amount of electric power not stored in the battery from the electric power supplied to the motor. In the silence mode, the controller supplies only the electric power stored in the battery and controls a duration by adjusting output power of motor. In the normal mode, the controller supplies electric power not stored in the battery.