Abstract: The present disclosure provides a novel compound represented by the following Chemical Formula 1 and an organic light emitting device including the same: wherein R1 to R8 are described herein.

Abstract: Disclosed is a transmissive wavelength tunable hyperspectral filter using layered twisted liquid crystal thin film, wherein the transmissive wavelength tunable hyperspectral filter is formed by laminating two or more layered twisted liquid crystal thin films having different broadband reflection bandgaps, wherein each of the layered twisted liquid crystal thin films includes a twisted liquid crystal layer including a plurality of unit liquid crystal molecules, and formed by arranging twisted liquid crystal complexes defining a preset cone angle along the helical axis with respect to the helical axis, and includes a pseudo-layer formed by arranging a plurality of twisted liquid crystal layers in a lengthwise direction of the helical axis at a preset inter-layer pitch (P).

Abstract: The present disclosure provides a novel compound represented by the following Chemical Formula 1, and an organic light emitting device including the same: wherein R1, R2, and n1 are described herein.

Abstract: The present disclosure provides a novel compound represented by the following Chemical Formula 1, and an organic light emitting device including the same: wherein A1 to A4, X, Y, and n are described herein.

Abstract: The present disclosure provides a novel compound represented by the following Chemical Formula 1, and an organic light emitting device including the same: wherein A1 to A4, X, Y, n1 and n2 are described herein.

Abstract: Disclosed is an amplification circuit, which includes a first amplifier that receives an external signal and performs first band pass filtering on the external signal to output a first filter signal, and a second amplifier that receives the first filter signal and performs second band pass filtering on the first filter signal to output a second filter signal, and a frequency pass bandwidth of the second band pass filtering is narrower than a frequency pass bandwidth of the first band pass filtering.

Abstract: A display device includes a display area, a peripheral area disposed outside the display area, and a sealing area disposed outside the peripheral area, a first base substrate, a second base substrate facing the first base substrate, a color filter layer disposed under the first base substrate, a bank layer disposed under the color filter layer, and a sealing member disposed between the bank layer and the second base substrate in the sealing area. The bank layer includes bank patterns defining an opening disposed at least in the sealing area, and the sealing member fills the opening. Each of the bank patterns includes a first surface adjacent to the color filter layer and a second surface opposite to the first surface and adjacent to the sealing member. A width of the second surface is greater than a width of the first surface.

Abstract: The present disclosure provides a novel compound represented by the following Chemical Formula 1, and an organic light emitting device including the same: wherein A1 to A4, X, Y and n are described herein.

Abstract: A hybrid communication device, an operation method thereof, and a communication system including the same are provided. The hybrid communication device includes a contact unit that includes an antenna for receiving a first communication signal and an electrode for receiving a second signal, a switch controller that includes a first switch and a second switch and controls the first switch and the second switch based on a change in capacitance of the electrode, and a signal processing unit that receives at least one of the first communication signal and the second communication signal from the contact unit via the first switch and processes the received signal. The first switch is connected to the contact unit, and the signal processing unit is connected to the first switch.

Abstract: A three-dimensional semiconductor memory device may include a first stack block including first stacks arranged in a first direction on a substrate, a second stack block including second stacks arranged in the first direction on the substrate, and a separation structure provided on the substrate between the first stack block and the second stack block. The separation structure may include first mold layers and second mold layers, which are stacked in a vertical direction perpendicular to a top surface of the substrate.

Abstract: Electrochemical cells for the production of hydrogen from liquid fuels and methods of operating the cells to produce hydrogen and electricity are provided. The electrochemical cells are solid state cells that incorporate a thermochemical conversion catalyst and a hydrogen oxidation catalyst into the anode and utilize solid acid electrolytes. This cell design integrates thermally driven chemical conversion of a starting fuel with electrochemical removal of hydrogen from the conversion reaction zone.

Abstract: Embodiments of the invention are directed to a device (10) for retaining an object in a disinfection apparatus. The device includes at least one support member (12) for contact engagement with one or more contact surfaces of the object. The at least one support member is formed from a material that allows a disinfection media to reach the one or more contact surfaces of the object such that the one or more contact surfaces are disinfected during a disinfection process.

Abstract: A solid oxide fuel cell according to this invention can provide a solid oxide fuel cell with improved performance, by loading an alkali-based promoter in an anode.

Abstract: The present disclosure relates to a payment system and method using a real-name account of a seller, the system and method being expanded from universal payment gateway (PG) platforms to the over the top (OTT) platform market and, more specifically, a payment system and method in which a payment exclusive account (hereinafter, payment account) opened in the real-name of a seller is used by default so that, in non-face-to-face electronic commerce, transactions may be conducted in real-time through live broadcasts between a plurality of unspecified sellers and a plurality of unspecified buyers at home and abroad, thereby enabling convenient, speedy, and safe processing with reduced processing costs.

Abstract: An ultrasonic probe, a method of operating the same, and a mounting device are provided. The ultrasonic probe includes a main body configured to transmit and receive ultrasound, a heat storage including a phase-change material configured to store heat being generated by the main body, and a display configured to display an amount of the stored heat.

Abstract: A shot sleeve for use in a die cast assembly has a shot sleeve body extending along an axis and having a bore for receiving a plunger. An insert is secured at a shot end of the shot sleeve body. A die cast assembly is also disclosed.

Abstract: A shot sleeve for a die casting machine includes a shot sleeve body with a pour opening that extends to a spaced apart inner and outer diameters. The shot sleeve body is a first material. A liner is secured to the shot sleeve body beneath the pour opening. The liner is a second material. The shot sleeve body and the liner together provide a plunger surface defining a cavity that is configured to receive a molten shot of material.

Abstract: A plunger assembly for a die casting machine shot sleeve includes a plunger body that has an outer diameter. The plunger includes a head that provides a wall. A piston ring is arranged on the plunger body adjacent to the wall. A nut is secured to the outer diameter and urges the piston ring toward the wall to retain the piston ring securely on the plunger body.

Abstract: A male button for a snap button is provided that can have an enhanced appearance and that can obtain an advertising effect and a decoration effect while representing a luxurious appearance and that can prevent foreign substances from being entered therein. The male button for a snap button includes: a main body having a surface portion and a press fixing portion having closed front surfaces in order to form a receiving space within a fitting protrusion and a concave peripheral portion protruded in a cylindrical shape; a deformation prevention device received at the receiving space of the main body; a snap having a coupling rod and fixed to the press fixing portion of the main body; and a snap fixing plate inserted and fixed to the coupling rod of the snap.

Abstract: A male button for a snap button is provided that can have an enhanced appearance and that can obtain an advertising effect and a decoration effect while representing a luxurious appearance and that can prevent foreign substances from being entered therein. The male button for a snap button includes: a main body 110 having a surface portion 114 and a press fixing portion 115 having closed front surfaces in order to form a receiving space 113 within a fitting protrusion 111 and a concave peripheral portion 112 protruded in a cylindrical shape; a deformation prevention device 120 received at the receiving space 113 of the main body 110; a snap 130 having a coupling rod 131 and fixed to the press fixing portion 115 of the main body 110; and a snap fixing plate 140 inserted and fixed to the coupling rod 131 of the snap 130.