Abstract: The present disclosure provides a display apparatus. The display apparatus includes a light source; a compensating diffraction optical element which reflects a light incident from the light source; and an off-axis reflection diffraction optical element which reflects a light reflected from the compensating diffraction optical element to the outside, wherein the compensating diffraction optical element reflects the light incident from the light source toward the off-axis reflection diffraction optical element while adjusting the reflection angle of the light incident from the light source so as to compensate for the reflection angle distortion of the light reflected from the off-axis reflection diffraction optical element.

Abstract: Provided is an antibacterial composition including lemongrass oil, lavender oil, and ylang ylang oil.

Abstract: A display device includes a substrate. A light emitting element layer is disposed on the substrate. The light emitting element layer includes a plurality of emission areas. Each of the emission areas comprises a light emitting element emitting light. A thin film encapsulation layer is on the light emitting element layer. The thin film encapsulation layer comprises a first inorganic encapsulation film, a first organic encapsulation film on the first inorganic encapsulation film, and a second inorganic encapsulation film on the first organic encapsulation film. A light control layer includes a first light blocking layer disposed on the thin film encapsulation layer and having a first opening, and a first light transmitting layer disposed on the first light blocking layer. The first light transmitting layer includes an organic layer. A refractive index of the first light transmitting layer is greater than a refractive index of the first organic encapsulation film.

Abstract: Disclosed is a water electrolysis system that improves durability by preventing performance degradation inside a water electrolysis stack. According to the present invention, in order to reduce electrode degradation in a water electrolysis unit cell, which can frequently occur in the starting and stopping stages of a process for producing hydrogen from the water electrolysis system, power of a constant current is supplied to the water electrolysis stack and electrolyte circulating water is heated while being circulated in the water electrolysis stack in the starting stage of the water electrolysis system. Also, when performing a stopping process, power of a constant current is supplied to the water electrolysis stack and electrolyte circulating water is cooled while being circulated in the water electrolysis stack. Accordingly, it is possible to improve durability by preventing performance degradation inside the water electrolysis stack.

Abstract: The inventive concept relates to an eyeball and eyelid protector including an eyeball cover that covers an eyeball, and an eyelid protection part that is bent and extends from one side of the eyeball cover to protect any one of an upper eyelid and a lower eyelid.

Abstract: The inventive concept relates to an eyeball and eyelid protector including an eyeball cover that covers an eyeball, and an eyelid protection part that is bent and extends from one side of the eyeball cover to protect any one of an upper eyelid and a lower eyelid.

Abstract: The present invention relates to an integrated nuclear reactor system including a double containment structure using liquid nitrogen, the nuclear reactor system comprising: a reactor vessel; a reactor core disposed in the reactor vessel; a steam generator disposed in the reactor vessel and located above the reactor core; a first containment vessel surrounding the reactor vessel with a first space interposed therebetween; a second containment vessel surrounding the first containment vessel with a second space interposed therebetween; and a liquid nitrogen supply unit supplying liquid nitrogen into the second space.

Abstract: Disclosed is a water electrolysis system that improves durability by preventing performance degradation inside a water electrolysis stack. According to the present invention, in order to reduce electrode degradation in a water electrolysis unit cell, which can frequently occur in the starting and stopping stages of a process for producing hydrogen from the water electrolysis system, power of a constant current is supplied to the water electrolysis stack and electrolyte circulating water is heated while being circulated in the water electrolysis stack in the starting stage of the water electrolysis system. Also, when performing a stopping process, power of a constant current is supplied to the water electrolysis stack and electrolyte circulating water is cooled while being circulated in the water electrolysis stack. Accordingly, it is possible to improve durability by preventing performance degradation inside the water electrolysis stack.

Abstract: The present invention relates to a composition for diagnosing a Parkinson's disease comprising mesenchymal stromal cells derived from adipose tissue, a method of providing information for diagnosing Parkinson's disease and/or the extent of the disease progression, a biomarker for diagnosing a Parkinson's disease, a method of screening a drug candidate treating Parkinson's disease where the drug candidate is a target of the biomarker, and an immortalized mesenchymal stromal cell from adipose tissue.

Abstract: The present invention relates to a composition for diagnosing a Parkinson's disease comprising mesenchymal stromal cells derived from adipose tissue, a method of providing information for diagnosing Parkinson's disease and/or the extent of the disease progression, a biomarker for diagnosing a Parkinson's disease, a method of screening a drug candidate treating Parkinson's disease where the drug candidate is a target of the biomarker, and an immortalized mesenchymal stromal cell from adipose tissue.

Abstract: The present invention relates to a composition for diagnosing a Parkinson's disease comprising mesenchymal stromal cells derived from adipose tissue, a method of providing information for diagnosing Parkinson's disease and/or the extent of the disease progression, a biomarker for diagnosing a Parkinson's disease, and a method of screening a drug candidate treating Parkinson's disease where the drug candidate is a target of the biomarker.