Abstract: Disclosed herein are a dehydrogenation catalyst having single-atom cobalt loaded onto a silica support that has undergone pretreatment including a thermal treatment and a high-temperature aqueous treatment (reaction), a preparation method therefor, and a method for producing olefins by dehydrogenating corresponding paraffins, particularly light paraffins in the presence of the dehydrogenation catalyst.

Abstract: In the present disclosure, a dehydrogenation catalyst in which cobalt in the form of single atom is supported on an inorganic oxide (specifically, silica) support in which an alkali metal in the form of single atom is fixed by alkali metal pretreatment and a method for producing the same, and a method for producing olefins by dehydrogenating corresponding paraffins, specifically light paraffins in the presence of the dehydrogenation catalyst are described.

Abstract: A camera calibration method includes obtaining a plurality of images of surroundings of a vehicle captured by a plurality of cameras, setting a region of interest (ROI) in each of the images, detecting one or more feature points of the set ROIs, matching a first feature point of a first ROI and a second feature point of a second ROI based on the detected feature points, calculating a first bird-view coordinate of the first feature point and a second bird-view coordinate of the second feature point, and calibrating the cameras by adjusting an extrinsic parameter of each of the cameras based on an error between the first bird-view coordinate and the second bird-view coordinate.

Abstract: Provided is a method of producing naphtha from mixed plastic, the method including the following steps: (a) subjecting the mixed plastic to thermal pyrolysis; (b) separating a product produced in the thermal pyrolysis into first oil having a boiling point of lower than 150° C. and second oil having a boiling point higher than that of the first oil; and (c) subjecting the second oil to catalytic pyrolysis.

Abstract: A vehicle camera calibration apparatus and method are provided. The vehicle camera calibration apparatus includes a camera module configured to acquire an image representing a road from a plurality of cameras installed in a vehicle, an input/output module configured to receive, as an input, the acquired image from the camera module, or output a corrected image, a lane detection module configured to detect a lane and extract a feature point of the lane from an image received from the input/output module, and a camera correction module configured to estimate a new external parameter using a lane equation and a lane width based on initial camera information and external parameter information in the image received from the input/output module, and to correct the image.

Abstract: In the present disclosure, a composite oxide catalyst capable of effectively suppressing side reactions at the time of dehydrogenation of C4 hydrocarbons having single bonds or one double bond and a process for preparing butadiene, in particular 1,3-butadiene, with a high selectivity and a high yield using the same are described.

Abstract: Disclosed herein are a dehydrogenation catalyst having single-atom cobalt loaded on a silica-based, shaped support, a preparation method therefor, and a method for preparing an olefin by dehydrogenating a corresponding paraffin, particularly light paraffin in the presence of the dehydrogenation catalyst.

Abstract: The present invention relates to a system for intermediating a used bicycle trade-in between a seller and a buyer, comprising a bicycle verifying part including a non-destructive testing or NDT module for verifying inside of a frame of a bicycle provided by the seller.

Abstract: A spine-correcting orthopedic foam roller for improving metabolism, includes: a spinous process accommodation groove for accommodating spinous processes of the spine; a transversus process stimulating part extending from the spinous process accommodation groove and protruding from a portion thereof corresponding to transversus processes of the spine; and a junctional process accommodation groove extending from the transversus process stimulating part in an axial direction and accommodating junctional processes, which are the ends of the transversus processes at which transverse costal facets are formed.

Abstract: The present invention relates to a system for intermediating a used bicycle trade-in between a seller and a buyer, comprising a bicycle verifying part including a non-destructive testing or NDT module for verifying inside of a frame of a bicycle provided by the seller.

Abstract: A semiconductor device includes a source structure, a bit line, a stacked structure between the source structure and the bit line, a source contact structure penetrating the stacked structure and electrically coupled to the source structure, and a protective pattern interposed between the source contact structure and the source structure and having a varying thickness depending on an area of the protective pattern.

Abstract: A camera calibration method includes obtaining a plurality of images of surroundings of a vehicle captured by a plurality of cameras, setting a region of interest (ROI) in each of the images, detecting one or more feature points of the set ROIs, matching a first feature point of a first ROI and a second feature point of a second ROI based on the detected feature points, calculating a first bird-view coordinate of the first feature point and a second bird-view coordinate of the second feature point, and calibrating the cameras by adjusting an extrinsic parameter of each of the cameras based on an error between the first bird-view coordinate and the second bird-view coordinate.

Abstract: The present invention relates to a method by which a movable object that is within a wireless network and capable of communicating with other movable objects uses the relative distance and azimuth angle information of the movable objects to estimate its self-location, as well as to the movable object capable of estimating its self-location. A self-location estimation method according to an embodiment of the present invention can be a method used by a movable object within a wireless network environment that enables communication between movable objects and can include: receiving the location information of a counterpart movable object from the counterpart movable object; measuring the relative distance and relative azimuth angle of the counterpart movable object; and deriving the current location information of the movable object by using the received location information of the counterpart movable object and the measured relative distance and relative azimuth angle.

Abstract: Disclosed herein is a drive device of an electrode channel for strengthening core muscles of an abdominal region, which can improve circulation of body fluid in a body cavity of the abdominal region and activate muscle membrane tissues inside/outside the abdominal cavity. The drive device includes a wearable instrument worn by a user over an abdominal region, a plurality of electrode channels formed by an electrode pair of a positive-terminal strip and a negative-terminal strip provided on the wearable instrument and contacting a body of the user, and a frequency supply unit for generating and selectively applying Russian current having a middle frequency and interference-wave current between the positive-terminal strip and the negative-terminal strip. Control is performed such that Russian current and interference-wave current are selectively applied to a positive-terminal strip of one of the plurality of electrode channels and a negative-terminal strip of another electrode channel.

Abstract: Disclosed is a functional pillow for manipulation therapy, the functional pillow comprising: an occipital region accommodating portion which accommodates and supports an occipital region; a cervical vertebrae support portion which extends from the occipital region accommodating portion and supports cervical vertebrae; and a fourth ventricle expanding protrusion which protrudes from the occipital region accommodating portion.

Abstract: Disclosed herein is a drive device of an electrode channel for strengthening core muscles of an abdominal region, which can improve circulation of body fluid in a body cavity of the abdominal region and activate muscle membrane tissues inside/outside the abdominal cavity. The drive device includes a wearable instrument worn by a user over an abdominal region, a plurality of electrode channels formed by an electrode pair of a positive-terminal strip and a negative-terminal strip provided on the wearable instrument and contacting a body of the user, and a frequency supply unit for generating and selectively applying Russian current having a middle frequency and interference-wave current between the positive-terminal strip and the negative-terminal strip. Control is performed such that Russian current and interference-wave current are selectively applied to a positive-terminal strip of one of the plurality of electrode channels and a negative-terminal strip of another electrode channel.

Abstract: In a method of forming an electrode structure for a photovoltaic cell, a transparent conductive layer is formed on a semiconductor layer of amorphous silicon material doped with dopants of a first conductive type. Then, a preliminary metal pattern is formed on the transparent conductive layer by performing an ink jet process using glass frit-free nano metal ink. After forming a metal paste layer using a conductive paste through a screen printing process to cover the preliminary metal pattern, the preliminary metal pattern and the metal paste layer are fired to transform the preliminary metal pattern and the metal paste layer into a first and a second metal pattern to define a metal electrode formed on the transparent metal layer.

Abstract: The present invention relates to a system for intermediating a used bicycle trade-in between a seller and a buyer, comprising a bicycle verifying part including a non-destructive testing or NDT module for verifying inside of a frame of a bicycle provided by the seller.