Abstract: It is related to a manufacturing method of negative electrode active material for lithium secondary battery, comprising: preparing an artificial graphite; forming a coating layer covering the artificial graphite by mixing the artificial graphite and a liquid coating material; and carbonizing the artificial graphite on which the coating layer is formed; wherein, the liquid coating material has a viscosity of 300 to 25000 mPa s at 35° C.; a negative electrode active material according to the method; and a lithium secondary battery including the same.

Abstract: A present disclosure is related to a method of manufacturing a negative electrode active material for lithium secondary battery: preparing a primary particle by grinding a carbon source containing 10 to 25 wt % volatile matter; heating and kneading the primary particle to assemble them into a secondary particle; and graphitizing the secondary particle; wherein, the step of assembling the secondary particle is the step of heating and kneading only the primary particle without adding a binder. In addition, it is provided a negative electrode active material for a lithium secondary battery has a retention of 80% discharge capacity of 20 cycles or more.

Abstract: The present disclosure relates to a manufacturing method of a negative active material for a battery, a negative active material manufactured therefrom, and a lithium secondary battery including the negative electrode, including: the steps of coating a base material for a negative active material with a coating material; and heating the obtained coating product; wherein, the coating material is graphitizable carbon, the softening point is 50° C. or less, and the coating material is included so that the residual carbon amount is 1 to 5 parts by weight with respect to 100 parts by weight of the base material for the negative active material.

Abstract: According to an embodiment, a method of simulating a three-dimensional (3D) padded garment includes generating a second pattern corresponding to a first pattern that is a two-dimensional (2D) pattern, generating an intermediate pattern positioned between the first pattern and the second pattern to which a pressure value is applied, wherein the intermediate pattern comprises a collision value, and generating the 3D padded garment based on at least one of the first pattern, the second pattern, and the intermediate pattern.

Abstract: The present disclosure relates to a method of manufacturing an anode active material for a lithium secondary battery, the method including: mixing earth graphite and pitch coke with each other; preparing a raw material by adding and mixing a binder to the mixture; performing heat treatment on the raw material; graphitizing the heat-treated mixture to obtain a core part; immersing the core part in a hard carbon coating solution; and drying the coating solution in which the core part is immersed to obtain an anode active material.

Abstract: The present disclosure relates to a method and device for generating an answer to a multiple-choice question, and an object of the present disclosure is to improve accuracy of answer generation by predicting an incorrect answer as well as a correct answer through a plurality of networks. In order to achieve the above object, the present disclosure provides a device for detecting an incorrect answer based on a text, a question, and a plurality of options corresponding to a multiple-choice question, including: a first network that predicts a correct answer by calculating a correct answer probability corresponding to each of the plurality of options, a second network that predicts an incorrect answer by calculating an incorrect answer probability corresponding to each of the plurality of options, and a third network that selects a final prediction based on the correct answer probability of the first network and the incorrect answer probability of the second network.

Abstract: The present invention relates to a negative electrode active material of a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery using the same. An embodiment of the present invention provides a negative electrode active material for a lithium secondary battery, including a graphite material including secondary particles, wherein the secondary particles are an assembly of a plurality of primary particles, the primary particles include green coke, and a ratio ((D90?D10)/D50) of a difference between a particle diameter D90 and a particle diameter D10 with respect to a particle diameter D50 of the secondary particles is 1.0 to 1.32.

Abstract: Disclosed is a handheld device having motion sensing, graphics processing, and wireless communication capabilities. The handheld device is configured to detect a user command through motion, translate the user command to a TV command, and transmit the TV command wirelessly. The handheld device may further include voice recognition capability. The handheld device may be further configured to obtain and store electronic program guide (EPG).

Abstract: The present invention relates to a light emitting diode with metal piles and one or more passivation layers and a method for making the diode including a first steps of performing mesa etching respectively on a first semiconductor layer and a second semiconductor layer belonging to stacked layers formed on a substrate in sequence! a second step of forming a reflector layer on the mesa-etched upper and side face! a third step of contacting one or more first electrodes with the first semiconductor layer and one or more second electrodes through the reflector layer with the second semiconductor layer; a fourth step of forming a first passivation layer on the reflector layer and the contacted electrodes; and a fifth step of connecting the first electrodes to a first bonding pad through one or more first electrode lines, bring one ends of vertical extensions having the shape of a metal pile into contact with one or more second electrodes, and connecting the other ends of the vertical extensions to a second bonding

Abstract: In a reinforced self-standing earth retaining structure using an arching effect, a soldier pile integrally formed with a soldier pile insertion portion in a vertical direction in a flange at one end of the soldier pile in which a lagging is inserted is installed at a width B to be perpendicular to the ground. A sheet panel protruding portion is inserted in and connected to the soldier pile insertion portion. A sheet panel protruding portion is serially inserted in a sheet panel insertion portion. A compression support plate protruding portion is inserted in and coupled to the sheet panel insertion portion. A relationship between a length L of a group of serial sheet panels and the width B between two groups of serial sheet panels is 0.5?L/B?3.0 in a range of an internal friction angle of earth ?=10˜34° and a range of an adhesive power C=0.0˜5.0 ton/m2 so that a back earth pressure is not applied to the front lagging due to the arching effect.

Abstract: Provided is a method of transmitting/receiving data in a sensor node for reducing overhearing of sensor nodes, and a sensor network which implements the method. A sender node having transmission data from among a plurality of nodes which perform a low power listening (LPL) operation in an asynchronous manner at predetermined time intervals, generates a long preamble including short preambles, each having information including a destination address of the transmission data, a remainder of the long preamble, and a length of the transmission data, and sequentially transmits the second preamble and the transmission data. A receiver node from among the plurality of nodes determines whether a valid signal is sensed during an active state in the LPL operation. If it is determined that the valid signal is sensed, the receiver node receives the short preamble transmitted from the sender node.