Abstract: In the present disclosure, a dehydrogenation catalyst in which cobalt in the form of single atom is supported on an inorganic oxide (specifically, silica) support in which an alkali metal in the form of single atom is fixed by alkali metal pretreatment and a method for producing the same, and a method for producing olefins by dehydrogenating corresponding paraffins, specifically light paraffins in the presence of the dehydrogenation catalyst are described.

Abstract: An optical device for realizing augmented reality comprises a lens comprising a first surface and side surfaces, a display device disposed on a first side surface among the side surfaces of the lens and displaying a first image in a first area and a second image in a second area, a first reflector disposed in the lens and reflecting the first image incident on the first side surface of the lens to the first surface, a second reflector disposed in the lens and reflecting the second image incident on the first side surface of the lens to the first surface, a first condenser disposed between the lens and the first area of the display device and focusing the first image on the first reflector, and a second condenser disposed between the lens and the second area of the display device and focusing the second image on the second reflector.

Abstract: A method for manufacturing a lower case of a battery module includes an extrusion molding operation in which a metal material is extruded to mold a cooling plate member and a sidewall member of a battery module; a forging operation in which an internal surface of the cooling plate member is pressed with a punch, having an edge of a lower end provided vertically to form an accommodation groove; and a forming operation in which an embossed piece, protruding to an external surface of the cooling plate member by forming the accommodation groove, is removed.

Abstract: In the present disclosure, a heterogeneous nickel-based oligomerization catalyst in which nickel in the form of single atom is loaded on an Al-mesoporous silicate support by ion exchange and a method for producing the same, and a method for oligomerizing light olefins, specifically C4 olefins using the catalyst are described.

Abstract: Disclosed herein a user interface device includes a levitating knob configured to detect an input by a user's manipulation; a knob holder configured to be held when the levitating knob does not levitate; a lifting driver provided below the knob holder so that the levitating knob rises from the knob holder and levitates; and an anti-separation section disposed to be spaced apart from the levitating knob by a predetermined distance so that the raised levitating knob does not deviate from an upper side of the knob holder; and wherein the levitating knob is provided with a first magnet, the lift driver is provided with a second magnet arranged to face the first magnet, the second magnet having the same pole as the first magnet on facing surface thereagainst, the lift driver is configured to levitate or hold the levitating knob by driving up or down the second magnet.

Abstract: A coil component includes a body having one surface, and one end surface and the other end surface connected to the one surface and opposing each other; a coil portion including lead-out patterns within the body; slit portions respectively disposed in an edge portion between the one end surface and the one surface of the body and an edge portion between the other end surface and the one surface of the body to expose the lead-out patterns; external electrodes disposed to be spaced apart from each other on the one surface and respectively extending to the slit portions to be connected to the lead-out patterns; and surface insulating layers, respectively disposed on the one end surface and the other end surface of the body. The surface insulating layers include a first insulating thin film including silicon dioxide (SiO2), and a second insulating thin film including aluminum oxide (Al2O3).

Abstract: In one example, a semiconductor device can comprise a substrate, a device stack, first and second internal interconnects, and an encapsulant. The substrate can comprise a first and second substrate sides opposite each other, a substrate outer sidewall between the first substrate side and the second substrate side, and a substrate inner sidewall defining a cavity between the first substrate side and the second substrate side. The device stack can be in the cavity and can comprise a first electronic device, and a second electronic device stacked on the first electronic device. The first internal interconnect can be coupled to the substrate and the device stack. The encapsulant can cover the substrate inner sidewall and the device stack and can fill the cavity. Other examples and related methods are disclosed herein.

Abstract: In the present disclosure, a heterogeneous nickel-based oligomerization catalyst in which nickel in the form of single atom is loaded on an Al-mesoporous silicate support by ion exchange and a method for producing the same, and a method for oligomerizing light olefins, specifically C4 olefins using the catalyst are described.

Abstract: Disclosed is a wireless power transmission system including a microstrip patch antenna. More particularly, a microstrip patch antenna according to an embodiment of the present disclosure includes a substrate, a patch disposed on the substrate, and a plurality of protrusions with a conical shape disposed on the patch.

Abstract: Disclosed is a wireless power transmission system including a microstrip patch antenna. More particularly, a microstrip patch antenna according to an embodiment of the present disclosure includes a substrate, a patch disposed on the substrate, and a plurality of protrusions with a conical shape disposed on the patch.

Abstract: A high frequency circuit includes a first electronic device, a second electronic device, and a graphene interconnection unit, where at least one of a trench and a via is defined under the graphene interconnection unit.

Abstract: A high frequency circuit includes a first electronic device, a second electronic device, and a graphene interconnection unit including graphene and which connects the first and second electronic devices, where an interlayer distance of the graphene is greater than or equal to about 0.34 nanometer.

Abstract: A high frequency circuit includes a first electronic device, a second electronic device, and a graphene interconnection unit, where at least one of a trench and a via is defined under the graphene interconnection unit.