Abstract: The present invention relates to a method for preparing a carbon nanotube fiber aggregate formed of single-wall carbon nanotubes, and the manufacturing efficiency of a carbon nanotube fiber comprising single-wall carbon nanotubes can be improved by controlling the molar ratio of a carbon source and of a reducing gas in a carrier gas.

Abstract: A method of road sign classification utilizing a knowledge graph, including detecting and selecting a representation of a sign across a plurality of frames, outputting a prompt initiating a request for a classification associated with the representation of the sign, classifying one or more images including the sign, querying the knowledge graph to obtain a plurality of road sign classes with at least one same attribute as the sign, and classifying the sign across the plurality of frames in response to a confidence level exceeding a threshold.

Abstract: The present invention relates to a modifier represented by Formula 1, a method of preparing the same, a modified conjugated diene-based polymer having a high modification ratio which includes a modifier-derived functional group, and a method of preparing the polymer.

Abstract: The present disclosure provides systems and methods for providing stowing location recommendation, comprising a memory storing instructions and a processor configured to execute the instructions to receive, from a user device associated with a user, a request for a location recommendation for stowing an inbound product, determine a plurality of locations to recommend within a zone, sample, based on a predetermined rule, a number of locations for stowing the inbound product, and display, via the user device, the sampled number of locations to the user for stowing the inbound product. The processor is also configured to receive, from the user device, a selection of a stowing location among the sampled number of locations and modify a database to assign a location identifier associated with the selected stowing location to the inbound product.

Abstract: The present invention relates to a modifier represented by Formula 1, a method of preparing the same, a modified conjugated diene-based polymer having a high modification ratio which includes a modifier-derived functional group, and a method of preparing the polymer.

Abstract: An apparatus that provides a cooperative shopping service in association with a chat application includes a friend information receiving unit configured to receive, from a host device, information about at least one friend or chat room selected from a list of multiple friends or multiple chat rooms managed by the chat application; an invitation unit configured to transmit an invitation message to a guest device corresponding to the friend or a member of the chat room through the chat application; and a cooperative shopping service providing unit configured to provide, both to the host device and the guest device, a list of products that are capable of being put into a shopping cart of the host device and receive order information about product selected from the list of products by at least one of the host device and the guest device, wherein the list of products provided to the host device and the guest device is generated based on a location of a delivery destination determined by the host device.

Abstract: Provided is an apparatus for assigning identification information to a plurality of slave battery management units. The apparatus assigns different identification information to a plurality of slave battery management units. The apparatus includes: a casing jig configured to at least partially cover the plurality of slave battery management units; a wireless communication unit including a plurality of antennas disposed so as to correspond one-to-one to the plurality of slave battery management units; and a controller configured to control the wireless communication unit so as to transmit a wireless signal including different identification information to the plurality of slave battery management units.

Abstract: Disclosed is a wearable device including a touch screen and a processor configured to display an execution screen of a first application on the touch screen, receive a first input for simultaneously executing the first application and a second application related to the first application, and display a first execution screen corresponding to the execution screen in a first part of the touch screen and a second execution screen among a plurality of execution screens corresponding to the second application in a second part of the touch screen, different from the first part, in response to the first input, wherein the second part surrounds the first part.

Abstract: The invention relates to a method for preparing a (meth)acrylic acid ester-based compound, and according to the preparation method, a (meth)acrylic acid ester-based compound can be prepared with high purity and high yield, by easily introducing an acrylic structure into alcohol using a diamine-based compound and acid anhydride.

Abstract: A smart drilling system includes a terminal configured to map a design space to an actual space and having perforation location information in the design space, a drilling machine including a drill for perforation and configured to perform perforation in the actual space under control of the terminal based on the perforation location information, and a total station configured to acquire location information of a reference point in the actual space for mapping the design space to the actual space and location information of the drilling machine in the actual space, and to transmit the location information of the reference point in the actual space and the location information of the drilling machine to the terminal, wherein the terminal recognizes and displays a perforable region or a perforable point at a current position of the drilling machine.

Abstract: Provided are a battery management system and a battery pack including the same. The battery management system includes a plurality of slave controllers, a plurality of temperature sensors, and a master controller. The plurality of temperature sensors are disposed in a plurality of different regions within the battery pack in a distributed fashion. The master controller is communicably coupled to the plurality of temperature sensors through a wired communication network. The master controller is communicably coupled to the plurality of slave controllers through a wireless communication network. The master controller determines a position of each of the plurality of slave controllers based on a temperature value of each region measured by the plurality of temperature sensors.

Abstract: The present invention relates to a carbon nanotube fiber and methods for preparing the same. In one embodiment, a method for preparing a carbon nanotube fiber comprises reacting a carbon source in the presence of a catalyst and a catalytic activator to form carbon nanotube aggregates, contacting the carbon nanotube aggregates with graphene oxide, and forming the carbon nanotube aggregates in contact with the graphene oxide into a carbon nanotube fiber.

Abstract: A data annotation system for a machine-learning system includes a computing system configured to execute a machine-learning algorithm for generating data annotations of input data. The computing system is further configured to execute an interface for communicating results and predictions of the machine-learning algorithm to non-expert workers for review. The interface communicates with the non-expert worker using visualization and natural language to elicit feedback to improve performance of the machine-learning algorithm.

Abstract: A storage maintains raw image data including video having a sequence of frames, and annotations of the frames that indicate aspects of objects identified in the respective frames. A processor determines, for annotation of key frames of the raw image data, a task type for key frames and an agent type for key frames, receives annotations of objects identified in the key frames of the raw image data according to the key frame task type and key frame agent type, selects to review the key frames based on a confidence level of the annotations of the key frames, determines, for annotation of intermediate frames of the raw image data, a task type for intermediate frames and an agent type for intermediate frames, and receives annotations of objects identified in the intermediate frames of the raw image data according to the intermediate frame task type and intermediate frame agent type.

Abstract: The present disclosure provides systems and methods for stowing products, comprising a memory storing instructions and a processor configured to execute the instructions to receive a tote identifier associated with a tote containing at least one product for stowing, predict, based on the tote identifier, a location for stowing the product, and provide a location recommendation for stowing the product based on the predicted location. The processor is configured to receive a product identifier, a location identifier, and a quantity of the product to be stowed. The processor is configured to modify a database to assign the location identifier and the quantity to the product identifier, receive a notification of a stowing error associated with the tote identifier, modify the database to assign the stowing error to the tote identifier, and automatically report the stowing error.

Abstract: The present invention provides a catalyst electrode for oxygen evolution comprising an electrode current collector comprising a carbon fiber fabric, a nanowire layer comprising a metal oxide-based porous nanowire grown radially from the surface of the carbon fiber, and a porous carbon coating layer disposed around the outer surface of the nanowire, thereby maximizing the specific surface area and increasing the electron transfer rate, and thus exhibiting an excellent catalytic activity for oxygen evolution reaction, and a preparation method thereof.

Abstract: The bioenvironmental simulation device according to an embodiment of the present invention includes at least one mounting unit on which cells to be measured are placed, a rotational force application unit configured to rotate the mounting unit so as to apply a rotational force to the cells to be measured placed on the mounting unit, and a culture liquid flow device through which a culture liquid flows across the mounting unit, wherein the culture liquid flows by the culture liquid flow device so as to apply a shear force to the cells to be measured.

Abstract: A battery management apparatus includes a master BMS and a plurality of slave BMSs connected to the master BMS by means of communication. The master BMS includes a master controller configured to generate operation order information of the plurality of slave BMSs based on state-of-charge information of each of a plurality of battery modules respectively connected to the plurality of slave BMSs.

Abstract: The present disclosure provides systems and methods for stowing products, comprising a memory storing instructions and a processor configured to execute the instructions to receive a tote identifier associated with a tote containing at least one product for stowing, predict, based on the tote identifier, a location for stowing the product, and provide a location recommendation for stowing the product based on the predicted location. The processor is configured to receive a product identifier, a location identifier, and a quantity of the product to be stowed. The processor is configured to modify a database to assign the location identifier and the quantity to the product identifier, receive a notification of a stowing error associated with the tote identifier, modify the database to assign the stowing error to the tote identifier, and automatically report the stowing error.

Abstract: The present disclosure relates to a preparation method of an acrylic ester compound. The preparation method of an acrylic ester compound according to the present disclosure enables the use of acrylic anhydride as a reactant instead of acryloyl chloride, which is difficult to handle, by using an alkane diamine as a catalyst. Therefore, not only can the reaction be carried out at a low temperature, but also conversion to an acrylic ester compound and a yield of the acrylic ester compound can be improved.