Abstract: The present disclosure relates to a compound, and an organic electroluminescent material and an organic electroluminescent device comprising the same. By comprising a compound and/or an organic electroluminescent material according to the present disclosure, an organic electroluminescent device having low driving voltage, and/or high luminous efficiency, and/or long lifespan characteristic, compared to the conventional organic electroluminescent device can be provided.

Abstract: A vehicle body assembly includes a cross member configured to connect side members disposed at two opposite sides of a chassis frame of a vehicle. A battery is fastened to the cross member and the battery is fastened to a reinforcement member provided on a floor panel of a vehicle body and fastened to the cross member of the chassis frame. The battery may be installed in and removed from the vehicle in accordance with a user's needs that change even after the vehicle is manufactured, the battery of the vehicle may be replaced even after the vehicle is manufactured, and structural durability may be realized.

Abstract: The present invention relates to a method of manufacturing a photonic integrated device based on single-step active layer epitaxial growth, and the method includes forming, on a substrate, a reference region having a first bandgap and a region having a bandgap, which is red-shifted relative to the first bandgap, through active layer epitaxial growth, and applying a blue-shift to the substrate to form a region having a second bandgap that is blue-shifted relative to the first bandgap.

Abstract: A light emitting display device includes a substrate including a display area and a non-display area adjacent to the display area; a lower pad electrode on the substrate in the non-display area; a planarization layer overlapping the lower electrode; an upper pad electrode on the lower pad electrode and overlapping at least a portion of the lower planarization layer. The planarization layer includes an opening exposing an upper surface of the lower pad electrode, the lower pad electrode and the upper pad electrode are electrically connected to each other through the opening, the lower planarization layer includes an exposed portion exposing an upper surface of the lower planarization layer, and an overlapping portion overlapping at least a portion of the upper pad electrode, and a height of the upper surface of the exposed portion is lower than a height of an upper surface of the overlapping portion.

Abstract: The present disclosure provides: a compound of a specific chemical structure, having excellent activity with respect to BTK degradation; or a pharmaceutically acceptable salt thereof. The present disclosure also provides a composition comprising the compound or pharmaceutically acceptable salts thereof. The present disclosure also provides are pharmaceutical use for treating or preventing BTK-associated diseases (for example, autoimmune diseases or cancer) of the compound, the salt thereof, and the composition comprising same according to the present disclosure. The present disclosure also provides a method for treating or preventing BTK-associated diseases (for example, autoimmune diseases or cancer), comprising administering, to a subject requiring treatment, an effective amount of the compound, the salt thereof, or the composition comprising same according to the present disclosure.

Abstract: Disclosed is a method for preparing bio-oil, which can be used as bio heavy fuel oil and bio marine oil, from a fatty acid with high acid value.

Abstract: An Internet-of-things (IoT)-based impact pattern analysis system for a smart security window includes: an ultra-small IoT device attached to a security window and detecting an impact; a station processing a signal obtained from the ultra-small IoT device and analyzing an impact pattern; and a user terminal outputting information related to the impact pattern through an interface. The station controller processes 3-axis acceleration data to extract a feature vector and determines an impact pattern by applying a learning model. According to the embodiment of the present disclosure, by automatically determining whether an intrusion occurs by analyzing impact patterns according to various conditions and circumstances, malfunction based on an impact other than an intrusion may be reduced and an unnecessary alarm may be prevented.

Abstract: An Internet-of-things (IoT)-based impact pattern analysis system for a smart security window includes: an ultra-small IoT device attached to a security window and detecting an impact; a station processing a signal obtained from the ultra-small IoT device and analyzing an impact pattern; and a user terminal outputting information related to the impact pattern through an interface. The station controller processes 3-axis acceleration data to extract a feature vector and determines an impact pattern by applying a learning model. According to the embodiment of the present disclosure, by automatically determining whether an intrusion occurs by analyzing impact patterns according to various conditions and circumstances, malfunction based on an impact other than an intrusion may be reduced and an unnecessary alarm may be prevented.

Abstract: Disclosed is a method for preparing fatty acid alkyl ester for bio-diesel fuels by reacting a raw material containing fat with water to prepare fatty acid, and then reacting the prepared fatty acid with alcohol. The method for preparing fatty acid alkyl ester for bio-diesel fuels includes the steps of: preparing fatty acid and glycerin by an hydrolysis reaction of a raw material containing fat and water at the temperature of 200 to 280° C. and the pressure of 30 to 80 bar; carrying out a phase separation of the fatty acid and the glycerin; and carrying out an esterification reaction of the separated fatty acid and alcohol at the temperature of 200 to 350° C. and the pressure of atmospheric pressure to 35 bar.

Abstract: Disclosed is a method for preparing fatty acid alkyl ester for bio-diesel fuels by reacting a raw material containing fat with water to prepare fatty acid, and then reacting the prepared fatty acid with alcohol. The method for preparing fatty acid alkyl ester for bio-diesel fuels includes the steps of: preparing fatty acid and glycerin by an hydrolysis reaction of a raw material containing fat and water at the temperature of 200 to 280° C. and the pressure of 30 to 80 bar; carrying out a phase separation of the fatty acid and the glycerin; and carrying out an esterification reaction of the separated fatty acid and alcohol at the temperature of 200 to 350° C. and the pressure of atmospheric pressure to 35 bar.