Abstract: A polycarbonate resin including a unit of Chemical Formula 1, a method for preparing the same, a polycarbonate resin composition including the same, and a molded article including the polycarbonate resin composition are described: wherein all the variables are described herein.

Abstract: A resin including a unit represented by Chemical Formula 1, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition is described: wherein all the variables are described herein.

Abstract: The present disclosure provides a waveguide display apparatus. The waveguide waveguide display apparatus of the present disclosure is a waveguide display apparatus for correcting curved surface reflection distortion, the waveguide display apparatus including a waveguide for guiding light inputted from the outside; a first diffractive optical element disposed at the waveguide, and diffracting the light inputted from the outside to the inside of the waveguide; and a second diffractive optical element disposed at the waveguide, and diffracting the light guided by the waveguide to output a plurality of diffracted lights in a direction of a curved surface reflector located outside, wherein the second diffractive optical element has a structure of a diffraction grating corresponding to a curvature of the curved surface reflector such that the diffracted lights are reflected at different locations of the curved surface reflector in directions parallel to each other.

Abstract: A refrigerant cycle pressure control system includes: a heat exchanger cooling boil-off gas received from a storage tank; a refrigerant cycle including a refrigerant circulation line, a refrigerant compressor, and an expander; an inventory tank storing the refrigerant to be charged to the refrigerant cycle; a refrigerant supply line connecting the inventory tank to an upstream side of the refrigerant compressor to replenish the refrigerant cycle with the refrigerant; a refrigerant discharge line connecting a downstream side of the refrigerant compressor to the inventory tank to discharge the refrigerant from the refrigerant cycle to the inventory tank; and a pressure regulation line branched off of the refrigerant discharge line. The refrigerant cycle is depressurized by discharging the refrigerant from the refrigerant cycle through the refrigerant discharge line or the pressure regulation line.

Abstract: According to an embodiment of the present disclosure, a content container is provided. The content container may include: a container part configured to accommodate a liquid content; an upper cap that is detachably coupled to the container part and includes a first accommodation part configured to accommodate a solid content and a pressing part moved by being pressed; and a lower cap that is inserted into the container part, and includes an accommodation tube forming a second accommodation part and a plurality of communication holes formed in the outside of the accommodation tube to communicate with the container part, wherein, by pressing the upper cap, the solid content is moved from the first accommodation part to the second accommodation part.

Abstract: Disclosed is a hot-stamping component, which includes a base steel plate; and a plated layer on the base steel plate and including a first layer, a second layer, and an intermetallic compound portion having an island shape in the second layer, wherein the first layer and the second layer are sequentially stacked, and an area fraction of the intermetallic compound portion with respect to the second layer is an amount of 20% to 60%.

Abstract: A container includes a container portion having a storage space in which contents are stored, a spout coupled to the container portion and through which the contents in the container portion are discharged, and a nozzle configured to discharge the contents in fixed amounts, wherein the contents enter the nozzle from the head portion, and the spout and the nozzle are integrally formed.

Abstract: An embodiment of the present invention provides a cosmetic material impregnation member configured to be impregnated with a cosmetic material, which is applied to a cosmetic applicator when used, and a method for manufacturing the same. The member may comprise: an upper fabric layer woven to have a first mesh structure; a lower fabric layer woven to have a second mesh structure; and a support layer which includes a plurality of fiber yarns woven to connect the upper fabric layer and the lower fabric layer and forms an impregnation space for the cosmetic material between the upper fabric layer and the lower fabric layer.

Abstract: A container is provided according to an embodiment of the present disclosure. The container may include a container part in which an accommodation space configured to accommodate contents is formed, a middle body configured to communicate with the accommodation space and coupled to the container part to surround at least a portion of the container part, an inner cover rotatably connected to the middle body to open or close the accommodation space, and an outer cover rotatably connected to the middle body to open or close the middle body.

Abstract: A content container includes: a container unit for accommodating content; a discharge unit provided in the upper end of the container unit and having a lower discharge hole formed therein, through which the content is discharged; and an application unit including an elastic material, wherein the application unit is provided in the upper end of the discharge unit, has an upper discharge hole formed therein, the upper discharge hole being in communication with the lower discharge hole, and applies the content discharged through the upper discharge hole on the skin of a user.

Abstract: Provided is a method and apparatus for providing a subscription notification service. A method of providing a subscription notification service includes extracting data on a subscription notification of which a date is approaching, requesting a transmission of a notification message corresponding to the subscription notification data, generating a to-buy list including order information of at least one first product, and providing the generated to-buy list to a terminal of a user transmitting a purchase request.