Abstract: Provided is an ultra high strength steel sheet having a high yield ratio, and a method for manufacturing same and, more specifically, to a steel sheet having ultra high strength, a high yield ratio and excellent bendability, and a method for manufacturing same.

Abstract: The present disclosure relates to a method of recycling a positive electrode active material and a recycled positive electrode active material prepared by the same. More particularly, the present disclosure relates to a method of recycling a positive electrode active material, the method including step A of fragmenting a waste battery including a positive electrode, a separator, and a negative electrode to form waste battery scraps; step B of removing the negative electrode by jetting compressed air onto the waste battery scraps; and step C of treating the waste battery scraps from which the negative electrode has been removed with a solvent to remove the separator and obtain positive electrode scraps, and a recycled positive electrode active material prepared by the method.

Abstract: Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.

Abstract: Provided is a method for recovering and reusing an active material from a positive electrode scrap.

Abstract: Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP).

Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.

Abstract: A method of recycling a positive electrode active material and a recycled positive electrode active material prepared by the method. The method includes the steps of recovering a positive electrode active material by heat-treating a waste positive electrode comprising a current collector and a positive electrode active material layer coated thereon at 300 to 650° C. in air, washing the recovered positive electrode active material with water containing an ionic solid salt, and adding a lithium precursor to the washed recovered positive electrode active material and performing annealing at 400 to 1,000° C. in air.

Abstract: There is provided a method for collecting and reusing an active material from positive electrode scrap. The method for reusing a positive electrode active material of the present disclosure includes (a) thermally treating positive electrode scrap comprising an active material layer on a current collector in air for thermal decomposition of a binder and a conductive material in the active material layer, to separate the current collector from the active material layer, and collecting an active material in the active material layer, (b-1) washing the active material collected from the step (a) with a lithium compound solution which is basic in an aqueous solution, (b-2) mixing the active material washed from the step (b-1) with a lithium precursor aqueous solution and spray drying, and (c) annealing the active material spray dried from the step (b-2) to obtain a reusable active material.

Abstract: A method for determining an action of a bot automatically playing a champion within a battlefield of League of Legends (LoL), and a computing system for performing same. The computing system comprising: an acquisition module for periodically acquiring observation data observable in the computer game at each predetermined observation unit time while a game is in progress in a battlefield of the computer game; an agent module for, when the acquisition module acquires observation data, determining an action that the bot is to execute, by using the acquired observation data and a predetermined policy network, wherein the policy network is a deep neural network that outputs a probability of each of multiple executable actions that the bot is able to execute; and a learning module for periodically learning the policy network at each predetermined learning unit time while a game is in progress in the battlefield.

Abstract: The present disclosure relates to a method of recycling a positive electrode active material and a recycled positive electrode active material prepared by the same. More particularly, the present disclosure relates to a method of recycling a positive electrode active material, the method including step A of recovering a positive electrode active material by heat-treating a waste positive electrode including a current collector and a positive electrode active material layer coated thereon at 300 to 650° C. in air; step B of precipitating the recovered positive electrode active material in a basic aqueous lithium compound solution for 10 to 40 minutes; step C of removing a supernatant after the precipitation step and obtaining a precipitate; and step D of adding a lithium precursor to the obtained precipitate and performing annealing at 400 to 1,000° C. in air and a recycled positive electrode active material prepared by the method.

Abstract: An active material recovery apparatus includes a heat treatment bath and a screening wall extending along a first axis. The heat treatment bath includes a heating zone and the screening wall includes a cooling zone. The active material recovery apparatus includes an exhaust injection and a degassing system. The heat treatment bath is configured to remove a binder and a conductive material in an active material layer and to perform heat treatment in air on an electrode scrap including the active material layer on a current collector. The screen wall is configured to recover the active material in powder form. The active material recovery apparatus is configured to separately recover the current collector that does not pass through the screening wall. The heat treatment bath includes protrusions in a sawtooth shape on a first cross-section orthogonal to the first axis.

Abstract: A method of recovering an active material from a positive electrode scrap and reusing the active material is provided.

Abstract: A method for reusing a positive electrode active material includes dry-milling a positive electrode scrap comprising an active material layer on a current collector to convert the active material layer into a powdered state and to separate the active material layer from the current collector. The active material layer is a lithium composite transition metal oxide positive material active material layer. The method further includes adding a lithium precursor to a the active material layer. The method further includes thermally treating the active material layer in the powdered state to collect an active material. The method further includes obtaining a reusable active material by washing the collected active material with a basic lithium compound aqueous solution and drying the collected active material.

Abstract: There is provided a method of collecting and reusing an active material from a positive electrode scrap. The method of reusing a positive electrode active material according to the present disclosure includes (a-1) dry-milling a positive electrode scrap comprising an active material layer on a current collector to form the active material layer into a powdered state and separate the current collector, (a-2) thermally treating the active material layer in powder form in air for thermal decomposition of a binder and a conductive material in the active material layer, to collect an active material, (b) washing the active material collected from the step (a-2) with a lithium compound solution which is basic in an aqueous solution and drying, and (c) annealing the active material washed from the step (b) with an addition of a lithium precursor to obtain a reusable active material.

Abstract: An active material recovery apparatus capable of easily recovering an electrode active material from an electrode scrap in its intrinsic shape and a positive electrode active material reuse method using the active material recovery apparatus are provided.

Abstract: There is provided a method for collecting and reusing an active material from positive electrode scrap. The method of reusing a positive electrode active material of the present disclosure includes (a) thermally treating a positive electrode scrap comprising an active material layer comprising nickel, cobalt and manganese on a current collector in air for thermal decomposition of a binder and a conductive material in the active material layer, to separate the current collector from the active material layer, and collecting an active material in the active material layer, (b) washing the active material collected form the step (a) with a lithium compound solution which is basic in an aqueous solution and drying, and (c) annealing the active material washed from the step (b) with an addition of a lithium precursor to obtain a reusable active material.

Abstract: An example device includes a memory configured to store at least one program; a microphone configured to receive a voice; and at least one processor configured to execute the at least one program to control the device to perform operations for sending money to a recipient. The operations include determining a payment intention of a user based on analyzing the received voice input; retrieving contact information from a stored contact list based on the name of the recipient; transmitting the name and the contact information of the recipient to a bank server together with an amount of money specified in the voice input; receiving remittance details from the bank server; and approving the remittance details. The device may analyze the received voice input by using an artificial intelligence (AI) algorithm.

Abstract: There is provided a method for collecting and reusing an active material from positive electrode scrap. The method of reusing a positive electrode active material of the present disclosure includes (a) thermally treating a positive electrode scrap comprising an active material layer on a current collector in air for thermal decomposition of a binder and a conductive material in the active material layer, to separate the current collector from the active material layer, and collecting an active material in the active material layer, (b-1) washing the active material collected from the step (a) with a lithium compound solution which is basic in an aqueous solution, and drying, (b-2) grinding the active material dried from the step (b-1), (b-3) adding a lithium compound to the active material ground from the step (b-2), and (c) annealing the active material having the lithium precursor added thereto, to obtain a reusable active material.

Abstract: A method of recovering an active material from a positive electrode scrap and reusing the active material is provided.