Abstract: The present disclosure relates to organic electroluminescent devices. The organic electroluminescent device according to the present disclosure exhibits improved lifespan characteristics and progressive driving voltage by including at least one deuterated compound(s).

Abstract: The simulation system for predicting heating and cooling loads of a building comprises the collection unit collecting measurement data of a target building from a BEMS, the identification unit identifying indoor and outdoor temperature, humidity, and insolation measured in the building in real time based on RTS method, the correlation derivation unit deriving a correlation between energy usage based on the BEMS measurement data collected by the collection unit and the cooling and heating loads according to indoor and outdoor temperature, humidity, and insolation identified by the identification unit, the simulation unit predicting a change in cooling and heating loads according to a change in at least one of pieces of measurement data based on the correlation derived from the correlation derivation unit to perform a simulation, and the information provision unit providing a simulation result from the simulation unit in a visible form to a user terminal.

Abstract: Provided is a cosmetic composition for anti-aging, which contains a spider web extract, a Pseudoalteromonas extract, a ginseng callus extract and a heptapeptide as active ingredients. The cosmetic composition for anti-aging exhibits superior antioxidant effect and is able to exhibit anti-aging effect by improving skin wrinkles and skin elasticity, enhancing skin-moisturizing ability and improving skin barrier function.