Abstract: Provided is a rack for a bicycle or a kick scooter that is a single device allowing either of a bicycle or a kick scooter to be parked. The rack includes a pair of support members formed to extend upward from the ground and disposed to be parallel with and spaced apart from each other, a rotating shaft coupled to the support members, a parking member interposed between the pair of support members and axially coupled to the rotating shaft so as to be rotatable, and a protruding member disposed to be spaced apart from a front of the parking member that faces the bicycle or the kick scooter and having both ends bent toward the parking member to be fixed to the parking member.

Abstract: The present disclosure relates to an antenna apparatus for a base station and an adapter thereof and particularly comprises: an antenna module vertically installed to be spaced forward from a support pole by a predetermined distance so as to have a distancing space therebetween; an RRH installed on the antenna module to be positioned in the distancing space, wherein one of the upper end and the lower end thereof is hinge-coupled to the antenna module and the other of the upper end and the lower end thereof is attached to or detached from a part of the antenna module to enable electrical signal connection or disconnection while being rotated around the hinge; and an adapter for mediating the electrical signal connection and disconnection between the antenna module and the RRH. Therefore, the present disclosure provides advantages of reducing installation time and installation costs.

Abstract: A semiconductor device includes a substrate, a first sheet pattern on the substrate, a gate electrode on the substrate and surrounding the first sheet pattern, a first source/drain pattern and a second source/drain pattern respectively connected to a first end and a second end of the first sheet pattern, a contact blocking pattern on a lower side of the second source/drain pattern, a first source/drain contact extending in a first direction and connected to the first source/drain pattern, and a second source/drain contact connected to the second source/drain pattern and extending in the first direction to contact an upper surface of the contact blocking pattern. A depth from an upper surface of the gate electrode to a lowermost portion of the first source/drain contact may be greater than a depth from the upper surface of the gate electrode to the upper surface of the contact blocking pattern.

Abstract: A panel transfer tray according to an embodiment includes an accommodation part which accommodates a target panel, a protrusion protruding upward direction from an upper edge of the accommodation part, and a first movement prevention member disposed at one side of the accommodation part and disposed adjacent to the protrusion, and the first movement prevention member has a stair shape of which a planar area gradually decreases along the upward direction.

Abstract: The present disclosure relates to a user recognition method and a user recognition apparatus using a two-dimensional (2D) electromyogram (EMG) spectrogram image. The user recognition method using a 2D EMG spectrogram image may include (a) acquiring a one-dimensional EMG signal for a user, (b) converting the acquired one-dimensional EMG signal to a 2D EMG spectrogram image including a temporal feature and a frequency feature, and (c) recognizing the user based on the 2D EMG spectrogram image.

Abstract: The embodiment relates to a data driving device for driving pixels of a display panel. In the data driving device, two adjacent DACs can have different gate loads for the same gray level value so that the fluctuation of the gate load according to the gray level value is reduced.

Abstract: A shoe management apparatus capable of managing various types of shoes and including a cabinet defining an inner space for storing shoes; and a partition dividing the inner space into an upper first compartment and a lower second compartment, formed therein with a fluid path along which air is discharged into the inner space, and variable in length with respect to a front-to-rear direction of the shoe management apparatus.

Abstract: The present disclosure relates to a joint system of a power cable, in which pressure-resistance performance of a boundary area between a power cable and a joint box for connecting power cables is improved.

Abstract: The present specification provides a method of preparing a heterogeneous linear carbonate, including transesterifying an aliphatic alcohol and a symmetric linear carbonate in the presence of a catalyst, wherein the catalyst is a porous type basic ion exchange resin having an exchange capacity of 1 (eq/l-wet resin) or more and 1.5 (eq/l-wet resin) or less. The preparation method of the present specification provides a method of preparing a heterogeneous, symmetric linear carbonate and asymmetric linear carbonate in high yield without a process of reactive distillation.

Abstract: The present invention relates to a method of preparing a heterogeneous linear carbonate, the method including performing a transesterification reaction of dimethyl carbonate (DMC) and ethanol (EtOH) in the presence of a catalyst, wherein the catalyst is one or more selected from the group consisting of lithium methoxide (LME), lithium ethoxide (LEE), sodium methoxide (SME), sodium hydroxide (NaOH), and a mixture thereof, and the catalyst is input in a state of being dissolved in a sulfoxide-based solvent.

Abstract: Provided herein is a method of preparing a heterogeneous linear carbonate, including: performing a transesterification reaction of dimethyl carbonate (DMC) and ethanol (EtOH) in the presence of a catalyst; and filtering a composite obtained by the transesterification reaction through a filter.

Abstract: The present invention provides a method of preparing a heterogeneous linear carbonate, the method including transesterifying an aliphatic alcohol and a symmetric linear carbonate in the presence of a catalyst, wherein the catalyst is an acidic ion exchange resin, and a mass ratio of the aliphatic alcohol and the symmetric linear carbonate (aliphatic alcohol:symmetric linear carbonate) is 1:10 or more and 50:1 or less. The preparation method of the present specification provides a method of preparing a heterogeneous, symmetric linear carbonate and asymmetric linear carbonate in high yield without a process of reactive distillation, and is economical because a product and a catalyst can be easily separated.

Abstract: The present invention is directed to providing a method of preparing a heterogeneous linear carbonate, including: performing a transesterification reaction of dimethyl carbonate (DMC) and ethanol (EtOH) in the presence of a catalyst, wherein the catalyst is an amine-based compound having a boiling point of 150° C. or more.

Abstract: An opening/closing module according to the present invention comprises a middle door part having a curved shape that is located at an entrance of a sterilization module to separate, from the outside, the sterilization module that provides a sterilization space for accommodating a hand truck, and selectively opens/closes the entrance of the sterilization module by including a sliding part.

Abstract: A sterilizer according to the present invention comprises: a temperature-raising module for heating a carriage introduced thereinto; a sterilization module for sterilizing the carriage transferred from the temperature-raising module; a cooling module for cooling the carriage transferred from the sterilization module; and an opening-closing module connected to the temperature-raising module, the sterilization module, or the cooling module, to selectively open or close at least one module, and the sterilizer independently heat-treats a space separated by the opening-closing module.

Abstract: A sterilization module according to the present invention comprises: a sterilization housing that has an inner space capable of accommodating a cart; a sterilization heat treatment machine for heat-treating the cart accommodated in the inner space of the sterilization; a connection part that is provided in the inner space of the sterilization housing and moves the cart forward; and a rotation part that rotates the cart with respect to a cart rotary shaft, which is a predetermined rotary shaft, while gripping the cart.

Abstract: The present disclosure relates to a power cable joint system capable of minimizing expansion, deformation or damage of a metal sheath restoration layer, which is formed of a material such as lead sheath, due to internal expansion due to heat generated in an intermediate connection part of the power cable joint system.

Abstract: An embodiment can provide a motor comprising: a shaft; a rotor coupled to the shaft; a stator disposed between the shaft and the rotor; a bearing disposed between the shaft and the stator; and a base plate, wherein: the rotor includes a yoke coupled to the shaft; the base plate includes a body, a first partition protruding from the body, and a second partition extending from the first partition; the first partition is disposed between the bearing and the stator; a portion of the second partition is disposed to be overlapped with the first partition; and the first partition is in contact with the lateral surface of an outer ring of the bearing and the second partition is in contact with the one surface of the outer ring of the bearing.

Abstract: The present invention relates to a hydrogel composition for tissue regeneration, and a support prepared using same. More specifically, the present invention comprises anionic polysaccharides, aminated hyaluronic acid, and collagen. The hydrogel composition comprising the ingredients, and a support prepared using same can quickly form a three-dimensional structure through spontaneous cross-linking without the addition of a common cross-linking agent in which an epoxide group or an amine group is at a single end or both ends thereof, thereby providing a structure capable of soft tissue transplants.

Abstract: A semiconductor chip includes a first semiconductor device and a second semiconductor device stacked over the first semiconductor device. The second semiconductor device is electrically connected to the first semiconductor device via a plurality of through electrodes. In a test mode, the first semiconductor device is configured to drive a first pattern of logic levels and a second pattern of logic levels through the plurality of through electrodes, configured to compare logic levels of a plurality of test data generated by the first and second patterns from the first and second semiconductor devices to generate a detection signal indicating that the plurality of through electrodes operated normally or abnormally.