Abstract: The present invention relates to pyranochromenylphenol derivatives having different efficacies depending on the direction of optical activity and a pharmaceutical composition including the same, and in the pyranochromenylphenol derivatives, an R-enantiomer has excellent anti-diabetic efficacy by suppressing a rise in blood sugar and an S-enantiomer has excellent anti-obesity efficacy by suppressing an increase in body weight.

Abstract: Disclosed herein is an apparatus for detecting a passenger and wearing seat belt based on an image, which includes an image detector configured to detect an image of an interior of a vehicle, which is captured using a camera, a controller configured to analyze the image of the interior of the vehicle, which is captured through the image detector, and determine whether a passenger is present and whether the passenger wears a seat belt, and an information output part configured to output a warning or an alarm according to discrimination of the passenger from an object, which is determined by the controller, the presence or absence of the passenger, and whether the passenger wears the seat belt.

Abstract: The present invention relates to a carbon dioxide absorbent used for absorbing carbon dioxide, a carbon dioxide absorbent composition used for producing the carbon dioxide absorbent, and a solid raw material for a carbon dioxide absorbent included in the carbon dioxide absorbent.

Abstract: The present disclosure relates to a display device and a method for driving the same which can improve color unevenness in a low-grayscale (low-luminance) area and improve color accuracy and grayscale expression, and an image processor of a display device according to an embodiment identifies a low-grayscale area less than a threshold value according to an input maximum luminance and applies a grayscale reproduction mask thereto to reproduce a luminance of the low-grayscale area as a combination of the threshold value and a minimum value.

Abstract: Disclosed herein is a separate chamber type epi-growth apparatus including a reaction chamber having a growth space, a substrate mounting unit disposed in the growth space and allowing a substrate to be mounted thereon, a metal oxide treating unit treating a metal oxide in a space independent from the growth space so that metal ions and oxygen ions generated from the metal oxide are supplied to the substrate, an arsenic supply unit installed to face the substrate and supplying arsenic ions to the substrate, an oxygen radical supply unit installed to face the substrate, dissociating oxygen molecules in a gaseous state, and supplying oxygen radicals to the substrate, and a vacuum control unit independently controlling a vacuum state of the reaction chamber and the metal oxide treating unit.

Abstract: Disclosed herein is an apparatus for growing a single crystal metal-oxide epi wafer, including a reaction chamber having an internal space, a substrate mounting unit disposed in the internal space and allowing a substrate to be mounted thereon, a metal-oxide treating unit treating a metal-oxide to supply metal ions and oxygen ions generated from the metal-oxide to the substrate, and an arsenic supply unit installed to face the substrate and supplying arsenic ions to the substrate, wherein the metal-oxide treating unit includes a mount disposed to face the substrate in the internal space and allowing a zinc oxide plate which is the metal-oxide to be installed thereon, and an electron beam irradiator irradiating the zinc oxide plate with an electron beam in a direct manner to cause zinc ions and oxygen ions evaporated from the zinc oxide plate to move toward the substrate.

Abstract: A metal-oxide electron-beam evaporation source including a variable temperature control device according to the present invention includes: a crucible configured to store a deposition material which is formed of a metal oxide and over which an electron beam is directly scanned; N heating units provided in an outer portion of the crucible, dividing the crucible into N regions, and provided for N regions, respectively; and a control unit configured to control the N heating units so that a temperature of an upper region of the crucible is maintained to be higher than that of a lower region of the crucible to reduce a temperature difference between a region over which the electron beam is scanned and a region over which the electron beam is not scanned.

Abstract: The present disclosure relates to a display device and a method for driving the same which can improve color unevenness in a low-grayscale (low-luminance) area and improve color accuracy and grayscale expression, and an image processor of a display device according to an embodiment identifies a low-grayscale area less than a threshold value according to an input maximum luminance and applies a grayscale reproduction mask thereto to reproduce a luminance of the low-grayscale area as a combination of the threshold value and a minimum value.

Abstract: In at least one embodiment, a display device includes a panel including a display area in which a plurality of pixels is arranged. An optical module is superposed on the display area. The display area has a low-resolution area having a polygonal shape and superposed on the optical module and a high-resolution area neighboring the low-resolution area, unit pixels having the same size as those of the high-resolution area are arranged in a lower pixel density than that of the high-resolution area and transmission areas are disposed adjacent to the unit pixels in the low-resolution area, and unit pixels and transmission areas are arranged in different forms in a boundary area of the high-resolution area neighboring the low-resolution area according to slopes of the boundary area.

Abstract: The present invention relates to pyranochromenylphenol derivatives having different efficacies depending on the direction of optical activity and a pharmaceutical composition including the same, and in the pyranochromenylphenol derivatives, an R-enantiomer has excellent anti-diabetic efficacy by suppressing a rise in blood sugar and an S-enantiomer has excellent anti-obesity efficacy by suppressing an increase in body weight.

Abstract: The present invention relates to a method for synthesizing a 3-phenyl-2,3,4,8,9,10-hexahydropyrano[2,3-f]chromene derivative and an optical isomer thereof, and an intermediate Compound which may be used for the synthesis method, and when the method and the intermediate Compound are used, the 3-phenyl-2,3,4,8,9,10-hexahydropyrano[2,3-f]chromene derivative and the optical isomer thereof may be effectively synthesized.

Abstract: The present invention relates to a method for synthesizing a 3-phenyl-2,8-dihydropyrano[2,3-f]chromene derivative, which may be usefully used for synthesizing a pyranochromenyl phenol derivative, and when the derivative is used, the 3-phenyl-2,3,4,8,9,10-hexahydropyrano[2,3-f]chromene derivative may be effectively prepared.

Abstract: According to an aspect of the present invention, there is provided a method for controlling a flow of advertising contents on the basis of a video chat, the method including measuring a positive response level of at least one talker among two or more talkers about an advertising content being provided to the two or more talkers on the basis of information on interaction among the two or more talkers participating in a video chat, and dynamically controlling a flow of advertising contents to be provided to the at least one talker on the basis of the positive response level.

Abstract: The present disclosure relates to a display device and a method for driving the same which can improve color unevenness in a low-grayscale (low-luminance) area and improve color accuracy and grayscale expression, and an image processor of a display device according to an embodiment identifies a low-grayscale area less than a threshold value according to an input maximum luminance and applies a grayscale reproduction mask thereto to reproduce a luminance of the low-grayscale area as a combination of the threshold value and a minimum value.

Abstract: A terminal device is provided. The terminal device includes a communication interface unit configured to receive image data of an application installed in another terminal device that is streamed from the another terminal device, a display unit configured to display the image data, a control unit configured to receive an installation file associated with the application through the communication interface unit while the image data is being displayed, and to execute the received installation file when authentication of the installation file is completed, and a storage unit configured to allow the application to be installed therein according to execution of the installation file.

Abstract: According to an aspect of the present invention, there is provided a method for estimating an emotion about an advertising content on the basis of a video chat, the method including providing an advertising content to at least one talker participating in the video chat, estimating an emotion of the at least one talker about the advertising content on the basis of at least one of a facial expression and chat contents of the at least one talker, and verifying whether the estimated emotion relates to the advertising content on the basis of gaze information of the at least one talker.

Abstract: A method of wirelessly connecting a first device to a target device is provided. The method includes searching for at least one device located in an orientation region of the first device, when a first input signal is received, determining the target device based on a direction that the first device is oriented, performing a wireless connection with the target device, and determining whether to maintain the wireless connection with the target device, when a second input signal is received.

Abstract: A method for a multilateral communication service includes acquiring at least one of a first video taken in a device of a first user, a first voice recorded in the device of the first user, and a first text message entered in the device of the first user; and specifying a plurality of display areas respectively assigned to a plurality of users participating in a conversation, and dynamically providing at least one of the first video, the first voice, and the first text message to a first display area assigned to the first user. When the first video or text message is dynamically provided, the first video or text message is dynamically displayed in the first display area, and when the first text message is dynamically displayed in the first display area, only a text message most recently entered by the first user is displayed in the first display area.

Abstract: The present invention relates to a method for synthesizing a 3-phenyl-2,3,4,8,9,10-hexahydropyrano[2,3-f]chromene derivative and an optical isomer thereof, and an intermediate Compound which may be used for the synthesis method, and when the method and the intermediate Compound are used, the 3-phenyl-2,3,4,8,9,10-hexahydropyrano[2,3-f]chromene derivative and the optical isomer thereof may be effectively synthesized.

Abstract: Disclosed herein is an apparatus for detecting a passenger and wearing seat belt based on an image, which includes an image detector configured to detect an image of an interior of a vehicle, which is captured using a camera, a controller configured to analyze the image of the interior of the vehicle, which is captured through the image detector, and determine whether a passenger is present and whether the passenger wears a seat belt, and an information output part configured to output a warning or an alarm according to discrimination of the passenger from an object, which is determined by the controller, the presence or absence of the passenger, and whether the passenger wears the seat belt.