Abstract: A picture generation apparatus and a control method thereof are disclosed. An embodiment of the present disclosure provides a picture generation apparatus including a light source; a Spatial Light Modulator (SLM) configured to output an image using light transmitted from the light source; and a control unit configured to control the light source and the SLM based on at least one of illuminance of the surroundings or content of the image.

Abstract: A diffractive light guide plate including a light guide unit; an input diffractive optical element that receives lights output from a light source and diffracts the received lights to be guided on the light guide unit; and two output diffractive optical elements disposed in a predetermined region of the light guide unit and having different linear grating patterns from each other, wherein the two output diffractive optical elements are configured so that each one output diffractive optical element receives the lights from the input diffractive optical element and allows the received lights to be directed to the other output diffractive optical element by diffraction, and so that each one output diffractive optical element receives lights from the other output diffractive optical element and allows the received lights to be output from the light guide unit by diffraction, and the two output diffractive optical elements having different linear grating patterns are alternately arranged in at least one dimension

Abstract: Disclosed are novel compounds of Chemical Formula 1, optical isomers of the compounds, and pharmaceutically acceptable salts of the compounds or the optical isomers. The compounds, isomers, and salts exhibit excellent activity as GLP-1 receptor agonists. In particular, they, as GLP-1 receptor agonists, exhibit excellent glucose tolerance, thus having a great potential to be used as therapeutic agents for metabolic diseases. Moreover, they exhibit excellent pharmacological safety for cardiovascular systems.

Abstract: A brake disc, in which a hat part that is mounted on a hub and a disc part that provides friction surfaces with brake pads are made of different materials and are combined, includes: a plurality of bridges protruding and circumferentially arranged around an edge of the hat part for coupling to the disc part; a plurality of vanes defining a channel for air flow; and a plurality of coupling pillars, which are fixedly in contact with the bridges, respectively, arranged between a pair of disc plates. The coupling pillars are fixedly in contact with both sides of the bridges while exposing front ends of the bridges.

Abstract: A brake disc, in which a hat part that is mounted on a hub and a disc part that provides friction surfaces with brake pads are made of different materials and are combined, includes: a plurality of bridges protruding and circumferentially arranged around an edge of the hat part for coupling to the disc part; a plurality of vanes defining a channel for air flow; and a plurality of coupling pillars, which are fixedly in contact with the bridges, respectively, arranged between a pair of disc plates. The coupling pillars are fixedly in contact with both sides of the bridges while exposing front ends of the bridges.

Abstract: A solid type brake disc includes a hat part that includes a circular body that is fitted on a rotary shaft of a wheel and a plurality of hollow protrusions that are formed around the outer surface of the body and each have an internal space. The solid type brake disc also includes a friction part that includes a ring body that has a center hole and receives the hat part in the center hole and projections that protrude toward the hollow protrusions and are inserted in the internal spaces to be covered with the hollow protrusions.

Abstract: The present invention relates to a method for manufacturing a GaAs semiconductor nanowire in a bottom-up type and, more particularly, to a method for manufacturing a vertically-aligned gallium arsenide semiconductor nanowire array in a large area by applying a voltage and a current from the outside using a metal thin film, which has been made through an economical method of fabricating a mesh-type metal thin film in a large area, as an anode such that holes (h+) are injected into a gallium arsenide substrate, thereby inducing a wet etching process continuously. The obtained vertically-aligned gallium arsenide semiconductor nanowire of a large area can be applied to fabrication of nanoelements, such as a solar cell, a transistor, and a light-emitting diode.

Abstract: Disclosed is a solid-type brake disc including a hat part, which includes a circular main body mounted on a rotation shaft of a wheel, and a plurality of protrusions protruding in a circumferential direction from an outside surface of the main body, and a friction part, which includes a ring body having a through-hole formed in the center thereof for receiving the hat part in the through-hole, and recessed portions protruding from the periphery of the through-hole toward the respective protrusions, the recessed portions being connected to the respective protrusions to enclose the protrusions.

Abstract: A solid type brake disc includes a hat part that includes a circular body that is fitted on a rotary shaft of a wheel and a plurality of hollow protrusions that are formed around the outer surface of the body and each have an internal space. The solid type brake disc also includes a friction part that includes a ring body that has a center hole and receives the hat part in the center hole and projections that protrude toward the hollow protrusions and are inserted in the internal spaces to be covered with the hollow protrusions.

Abstract: Disclosed is a solid-type brake disc including a hat part, which includes a circular main body mounted on a rotation shaft of a wheel, and a plurality of protrusions protruding in a circumferential direction from an outside surface of the main body, and a friction part, which includes a ring body having a through-hole formed in the center thereof for receiving the hat part in the through-hole, and recessed portions protruding from the periphery of the through-hole toward the respective protrusions, the recessed portions being connected to the respective protrusions to enclose the protrusions.

Abstract: The present invention relates to a method for manufacturing a GaAs semiconductor nanowire in a bottom-up type and, more particularly, to a method for manufacturing a vertically-aligned gallium arsenide semiconductor nanowire array in a large area by applying a voltage and a current from the outside using a metal thin film, which has been made through an economical method of fabricating a mesh-type metal thin film in a large area, as an anode such that holes (h+) are injected into a gallium arsenide substrate, thereby inducing a wet etching process continuously. The obtained vertically-aligned gallium arsenide semiconductor nanowire of a large area can be applied to fabrication of nanoelements, such as a solar cell, a transistor, and a light-emitting diode.

Abstract: There is provided an electronic component inspection apparatus. The electronic component inspection apparatus includes a first rotation unit, rotatable based on a first rotating shaft, a plurality of second rotation units rotatably provided in the first rotation unit based on a second rotating shaft, and an inspection unit inspecting characteristics of an electronic component mounted in the second rotation unit.

Abstract: A refrigerator and a drawer opening/closing apparatus for a refrigerator wherein a main drawer and an auxiliary drawer are drawn at the same time or independently, the convenience of use is advantageously improved because it is possible for an user to automatically open the auxiliary drawer without directly opening the auxiliary drawer.

Abstract: A refrigerator of the embodiment includes a cabinet in which a storage chamber is formed; a door that is connected to the cabinet and opens and closes the storage chamber; and a door opening apparatus that is provided in the cabinet and opens the door, wherein the door opening apparatus includes: a push member that contacts a rear surface of the door and pushes the rear surface of the door by a rotation operation and a driver that is connected to the push member and generates power for moving the push member.

Abstract: The present invention relates to a shelf and a refrigerator, and more particularly, to a shelf height re-setting structure which enables convenient setting of a shelf without removing food from the shelf, and a refrigerator having the same. For this, the present invention provides a shelf height re-setting structure including a rail having height adjusting paths repeated in a vertical direction each with a slope and release and setting paths connected between adjacent height adjusting paths, and setting means secured to the shelf so as to be movable along the height adjusting paths and release and setting paths for selecting a height of the shelf, and a refrigerator with the same.

Abstract: A height adjusting apparatus of a shelf for a refrigerator in a refrigerator having the shelf on which objects to be stored are placed and which is movable up or down to a certain height, the apparatus comprising: fixing guides formed in parallel with the movement path of the shelf; and operation levers movable along the fixing guides when the shelf is moved upwardly or downwardly, and restricted in the fixing guides to maintain the shelf at a height that the shelf is moved upwardly or downwardly when the shelf is completely moved upwardly or downwardly.

Abstract: In order to allow a user to conveniently adjust the elevation of the shelf, simplify the structure not to generate noise, stably maintain the selected position of the shelf, and rapidly and considerably adjusting the elevation of the shelf, the present invention discloses an elevation adjustment apparatus for a shelf in a refrigerator comprises a shaft lengthily provided up and down in the inside of the refrigerator; a shelf moved up and down along the shaft; an operating lever hinged to the shelf and having a through hole through which the shaft penetrates; and an elastic member pushing the operating lever to contact the through hole to the shelf and hook them so that the up and down movement of the shelf is selectively restricted.

Abstract: An apparatus and method for image interpolation based on low pass filtering are provided. The apparatus includes an edge direction detector detecting an edge direction for a pixel nearest to a to-be-interpolated pixel among pixels and determining the edge direction of the to-be-interpolated pixel as the detected edge direction, a pixel value calculator calculating pixel values of interpolation points located in a lattice filtering window having a predetermined size by using pixel values of pixels located adjacent to the interpolation points, and a filtering unit performing low pass filtering on the to-be-located pixel according to a low pass filter corresponding to the determined edge direction of the to-be-interpolated pixel, the low pass filter being one of low pass filters corresponding to predetermined vertical, horizontal, left diagonal and right diagonal directions respectively.

Abstract: A hinge according to the present invention includes: a housing; a shaft received in the inside of the housing; a guide member linearly moving along the shaft; and a first elastic member compressed and expanded along the movement of the guide member, wherein any one of the guide member and the housing is formed with a track groove and the other is formed with a guide projection moving the track groove and, the track groove is formed to move the guide projection to different paths according to a forward rotation and a reverse rotation of the shaft.

Abstract: In order to can conveniently operate the elevation of the shelf, move the shelf only by the movement of the shelf without performing the separate work in order to allow the user to move the shelf, and automatically fix the position of the shelf by means of the restoring force of the elastic member after the movement of the shelf is completed, the present invention discloses an elevation adjustment apparatus for a shelf in a refrigerator comprising an engaging guide lengthily formed up and down in the inside of the refrigerator; a shelf movably mounted up and down along the engaging guide; an engaging apparatus rotatably supported on the shelf and re-stricting the downward movement of the shelf by selectively hooking it on any position of the engaging guide by a rotation operation; and a load supporting apparatus supporting the load of the shelf at the position fixing the shelf by the engaging apparatus.