Abstract: The present disclosure relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising the specific combination of compounds according to the present disclosure as a plurality of host materials according to the present disclosure, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifetime property compared to the conventional organic electroluminescent devices.

Abstract: The present invention relates to a negative electrode including a current collector and a negative electrode active material layer disposed on the current collector, wherein the negative electrode active material layer includes a negative electrode active material, carbon black, and a binder, wherein the negative electrode active material includes silicon particles, and the binder includes a copolymer containing a unit derived from a poly(vinylalcohol) (PVA) and a unit derived from an ionized and substituted acrylate, the binder being included in the negative electrode active material layer in an amount of 18 wt % to 22 wt %.

Abstract: A deep learning device and system including the same is provided. The deep learning device comprising processing circuitry configured to determine whether a received image is abnormal using an anomaly detection model; merge at least some vectors extracted from the anomaly detection model; input, to a probability approximation model, principal components generated by a principal component analysis (PCA) to detect whether out of distribution (OOD) occurs in data of the received image; store a result of the determinations; and extract at least some the data in which the OOD occurs, as target labeling, using a target labeling extraction model when a rate of the data in which the OOD occurs is greater than or equal to a threshold value, wherein the anomaly detection model determines whether the received image is abnormal using the target labeling.

Abstract: The present disclosure relates to a base station apparatus and a method of operating a base station apparatus capable of improving accuracy of beam steering (steerability) in performing beamforming using an antenna based on multiple input multiple output (MIMO).

Abstract: A negative electrode for a secondary battery, and a method for producing the same, and more particularly, to a negative electrode for a secondary battery used for a negative electrode of a secondary battery, and a method for producing the same. A negative electrode for a secondary battery may include a carbon-based active material; a conductive material; and a silicon-based active material-polymer binder combination including a silicon-based active material, and a polymer binder for suppressing the expansion of the silicon-based active material bonded to a particle surface of the silicon-based active material.

Abstract: A composite negative electrode active material, which includes: a silicon-based core particle; an outer carbon coating layer positioned on a surface of the silicon-based core particle; first single-walled carbon nanotubes in contact with the outer carbon coating layer, wherein the first single-walled carbon nanotubes protrude from the outer carbon coating layer; a conductive structure spaced apart from the outer carbon coating layer, wherein the conductive structure includes at least one second single-walled carbon nanotubes; and a crosslinking material bonded to the first single-walled carbon nanotube and at least one of the second single-walled carbon nanotubes. The at least one of the second single-walled carbon nanotubes is crosslinked with the first single-walled carbon nanotube by the crosslinking material, and wherein the conductive structure and the first single-walled carbon nanotube are connected to each other.

Abstract: A method for manufacturing a secondary battery including: forming an electrode assembly including a negative electrode including a silicon-based active material, a positive electrode facing the negative electrode, and a separator between the negative electrode and the positive electrode; impregnating the electrode assembly by injecting an electrolytic solution into the electrode assembly to form an impregnated electrode assembly; performing activation through first charging/discharging in at least one cycle while pressurizing the impregnated electrode assembly to form an activated electrode assembly; allowing the activated electrode assembly to stand at 40° C. to 80° C. in a state of being charged to a SOC of 70% or more; removing a gas generated from the electrode assembly after allowing the activated electrode assembly to stand; and subjecting the electrode assembly to a second charging/discharging in at least one cycle at 15° C. to 30° C. after the removing of gas generated from the electrode assembly.

Abstract: The present invention provides a battery system including one or more secondary batteries each including a negative electrode including a silicon-based active material, a positive electrode facing the negative electrode, a separator interposed between the negative electrode and the positive electrode, and an electrolyte and a control unit configured to set a driving voltage range for charging and discharging of the secondary batteries, wherein a maximum driving voltage of the secondary battery set by the control unit is in a range of 4.00 V to 4.08 V, and a minimum driving voltage of the secondary battery set by the control unit is in a range of 2.98 V to 3.07 V.

Abstract: Methods and apparatus for transmission of data streams using a multicast packet format based on group identifiers (Group IDs) to deliver data to multiple recipient stations (STAs). Using Group IDs, an access point (AP) assigns multiple STAs to one or more groups, and uniquely assigns each STA to a particular position within the group, such that it can receive a requested data stream. A Group ID management action frame provided by the AP to an individual STA indicates to which group (or groups) the STA is assigned and the STA's position within the group, with which information the STA can determine whether a packet is intended for the STA and which portion of the packet to decode in order to receive requested data streams.

Abstract: The present invention relates to a method of manufacturing a secondary battery comprising the steps of: forming a secondary battery structure comprising an electrode assembly comprising a negative electrode, a positive electrode, and a separator and an electrolyte solution, and activating the secondary battery structure by charging and discharging for at least one cycle while pressing the secondary battery structure at 1.5 MPa to 3.5 MPa, wherein the negative electrode comprises a silicon-based active material.

Abstract: A negative electrode for a lithium secondary battery having excellent dispersibility, adhesion and tensile strength, and a lithium secondary battery including the same. The negative electrode for a lithium secondary battery includes negative electrode active material particles, a conductive material and a binder. The binder includes a copolymer comprising acrylamide monomer-derived repeating units, acrylic acid monomer-derived repeating units, sodium acrylate monomer-derived repeating units and acrylonitrile monomer-derived repeating units. The combined weight of the acrylic acid monomer-derived repeating units and sodium acrylate monomer-derived repeating units in the copolymer is 25 wt % to 35 wt %. The negative electrode active material particles are silicon-based negative electrode active material particles.

Abstract: Disclosed is a negative electrode which includes: a negative electrode current collector; and a negative electrode active material layer on the negative electrode current collector. The negative electrode active material layer includes a silicon-based negative electrode active material, a binder, a conductive material, and single-walled carbon nanotubes. The single-walled carbon nanotubes are present in an amount of 0.001 wt % to 1 wt % in the negative electrode active material layer.

Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials comprising the same, and an organic electroluminescent device. By comprising the organic electroluminescent compound and/or a plurality of host materials comprising the same according to the present disclosure, an organic electroluminescent device having low driving voltage and/or high luminous efficiency and/or long lifespan property can be provided.

Abstract: A battery management apparatus includes a processor configured to collect sensing data of a battery using a sensor, and infrared (IR) communicators located to face a neighboring battery management apparatus of the battery management apparatus. The processor is configured to transmit the collected sensing data to the neighboring battery management apparatus using one of the IR communicators.

Abstract: A negative electrode includes a conductive material for negative electrode, a silicon-based active material, and an aqueous binder, wherein the conductive material for negative electrode includes a first conductive material having a specific surface area of 250 m2/g to 1000 m2/g, a second conductive material having a specific surface area of 55 m2/g to 70 m2/g, and a third conductive material having a specific surface area of 15 m2/g to 20 m2/g. A lithium secondary battery including the negative electrode is also provided.

Abstract: An apparatus for controlling a suspension of a vehicle to improve ride comfort of the vehicle includes: a sensor that measures rainfall around the vehicle, a camera that takes an image of a road surface ahead the vehicle, and a controller that recognizes an obstacle located on the road surface based on the image of the road surface ahead the vehicle. In particular, the controller determines a type of the obstacle depending on the measured rainfall around the vehicle, and controls a damping force of the suspension based on control information corresponding to the determined type of the obstacle when the vehicle passes over the obstacle.

Abstract: An apparatus for controlling a suspension of a vehicle includes: an illuminance sensor that measures illuminance outside the vehicle, a camera that takes an image of a road surface ahead the vehicle, and a controller that recognizes an obstacle located on the road surface based on the image of the road surface ahead the vehicle, determines a type of the obstacle depending on the measured illuminance outside the vehicle, and controls a damping force of the suspension based on control information corresponding to the type of the obstacle when the vehicle passes over the obstacle.

Abstract: An apparatus for controlling a suspension of a vehicle to improve high-speed driving stability of the vehicle includes: a sensor that obtains information about a road surface ahead the vehicle during travel of the vehicle; and a controller that derives a height value of the road surface from the information about the road surface, determines a state of the road surface based on a differential value of the derived height value, predicts vehicle behavior corresponding to the determined state of the road surface, and controls a damping force of the suspension based on the predicted vehicle behavior.

Abstract: Disclosed herein is a technique for bonding chips made of plastic materials by taking advantage of a photothermal effect of a graphene-copper sulfide composite. Using a photothermal adhesive composition containing the composite, microfluidic chips that pass fluids therethrough with neither leakage nor deformation can be effectively fabricated.

Abstract: A method for sensing a closing time of an injector using an artificial neural network may include: sensing, by a controller, a voltage generated by an injector; performing, by the controller, a preprocess to derive an input matrix using variation characteristics of the voltage; and performing, by the controller, a closing time prediction to derive a closing time of the injector by an artificial neural network model including an input layer including the input matrix, a hidden layer, and an output layer.