Abstract: The present disclosure relates to a putrescine-producing microorganism of the genus Corynebacterium, and a method of producing putrescine using the same.

Abstract: Systems and methods for controlling a swarm of mobile robots are disclosed. In one aspect, the robots cover a domain of interest. Each robot receives a density function indicative of at least one area of importance in the domain of interest, and calculates a velocity vector based on the density function and a displace vector relative to an adjacent robot. Each robot moves to the area of importance according to its velocity vector. In some aspects, the robots together perform a sequence of formations. Each robot mimics a trajectory as part of its performance by switching among a plurality of motion modes. Each robot determines its next motion mode based on a displacement vector relative to an adjacent robot.

Abstract: The present disclosure relates to a polypeptide having an acyltransferase activity or a microorganism including the same; a composition for preparing N-acetyl-L-methionine, the composition including the polypeptide or microorganism; and a method of preparing N-acetyl-L-methionine using the polypeptide or microorganism. Further, the present disclosure relates to a polynucleotide encoding the polypeptide and an expression vector including the polynucleotide. Since the microorganism including a novel acyltransferase according to the present disclosure has enhanced acyltransferase activity, this microorganism can be efficiently used for producing N-acetyl-L-methionine by acetylating L-methionine.

Abstract: The present invention relates to a microorganism of the genus Corynebacterium, which has an enhanced activity of aspartate ammonia-lyase and/or aspartate aminotransferase, and thus has an enhanced ability to produce L-arginine, and to a method of producing L-arginine using the microorganism of the genus Corynebacterium.

Abstract: The present invention relates to a steering control apparatus comprising: a sensing unit configured to sense at least one among a vehicle speed, a steering angle, first lateral acceleration, and a steering angle speed; an estimation unit configured to estimate second lateral acceleration on the basis of the vehicle speed and the steering angle; and a controller configured to control a steering device so that a steering torque increases, on the basis of a slip gradient which indicates a difference between the first lateral acceleration and the second lateral acceleration, wherein the controlling of the steering device is released when the steering angle speed is inverted.

Abstract: The present embodiments relate to a system and a method for controlling autonomous steering according to a required torque from a driver assistance system, in which when outputting a driving current by the required torque, a compensation current is output by applying gains according to a car speed, steering angle, steering angle speed, and required torque to a variation in torque by the rotation of a steering wheel, thereby achieving autonomous steering with the smooth rotation of the steering wheel without intermittent interruptions even in high friction between the car and the road depending on road conditions.

Abstract: The present embodiments relate to a system and a method for controlling autonomous steering according to a required torque from a driver assistance system, in which when outputting a driving current by the required torque, a compensation current is output by applying gains according to a car speed, steering angle, steering angle speed, and required torque to a variation in torque by the rotation of a steering wheel, thereby achieving autonomous steering with the smooth rotation of the steering wheel without intermittent interruptions even in high friction between the car and the road depending on road conditions.

Abstract: Systems and methods for controlling a swarm of mobile robots are disclosed. In one aspect, the robots cover a domain main of interest. Each robot receives a density function indicative of at least one area of importance in the domain of interest, and calculates a velocity vector based on the density function and a displace vector relative to an adjacent robot. Each robot moves to the area of importance according to its velocity vector. In some aspects, the robots together perform a sequence of formations. Each robot mimics a trajectory as part of its performance by switching among a plurality of motion modes. Each robot determines its next motion mode based on a displacement vector relative to an adjacent robot.

Abstract: The present invention relates to a steering control apparatus comprising: a sensing unit configured to sense at least one among a vehicle speed, a steering angle, first lateral acceleration, and a steering angle speed; an estimation unit configured to estimate second lateral acceleration on the basis of the vehicle speed and the steering angle; and a controller configured to control a steering device so that a steering torque increases, on the basis of a slip gradient which indicates a difference between the first lateral acceleration and the second lateral acceleration, wherein the controlling of the steering device is released when the steering angle speed is inverted.

Abstract: The present invention relates to a microorganism of the genus Corynebacterium, which has an enhanced activity of aspartate ammonia-lyase and/or aspartate aminotransferase, and thus has an enhanced ability to produce L-arginine, and to a method of producing L-arginine using the microorganism of the genus Corynebacterium.

Abstract: Disclosed are steering control apparatus and a steering control method which are capable of determining a turning state of a vehicle, and controlling a steering control signal so that the vehicle maintains a normal turning state, thereby improving safety of the vehicle.

Abstract: Disclosed are steering control apparatus and a steering control method which are capable of determining a turning state of a vehicle, and controlling a steering control signal so that the vehicle maintains a normal turning state, thereby improving safety of the vehicle.

Abstract: The present invention provides a tool path forming method in a milling processing system, the method including: (A) a shape offset step; (B) a virtual wall forming step; (C) an interference region forming and shape revising step; (D) a closed shape forming step; (E) a cutting surface forming step; (F) tool path forming steps; (G) an unprocessed region detecting step; and (H) an uncut region tool path forming step.

Abstract: A roll-to-roll printing system includes driven rolls to apply a feeding force to a flexible substrate so that the flexible substrate is fed from an unwinder to a rewinder, nip rolls respectively disposed above two opposite end portions of each of the driven rolls to pressurize two opposite side portions of the flexible substrate, nip roll driving motors connected to the nip rolls to rotate the nip rolls, and a control unit to receive information regarding change of torque values of the nip roll driving motors and control tension of the flexible substrate based on the information.

Abstract: A printing plate cleaning apparatus may include a cleaning chamber configured to receive a printing plate to be cleaned, a nozzle supporter in the cleaning chamber, and/or a unified nozzle unit that includes a cleaning nozzle unit and a rinsing nozzle unit unified as a body and attached to the nozzle supporter. The cleaning nozzle unit may include a cleaner nozzle configured to inject cleaner to the printing plate and/or a first suction nozzle suctioning waste. The rinsing nozzle unit may include a rinsing liquid nozzle configured to inject rinsing liquid to the printing plate and/or a second suction nozzle suctioning the waste. A printing plate cleaning apparatus may include the cleaning chamber, a cleaning nozzle unit in the cleaning chamber, and/or a rinsing nozzle unit in the cleaning chamber. The cleaning and rinsing nozzle units may be configured to move together with each other in the cleaning chamber.

Abstract: A method of coating an electrolyte layer on a substrate includes forming a hydrophobic layer on an upper surface of the substrate that has a coating area, forming a hydrophilic region having a shape surrounding an outside of the coating area, and forming the electrolyte layer to cover the hydrophobic layer and the hydrophilic region.

Abstract: A printing plate cleaning apparatus may include a cleaning chamber configured to receive a printing plate to be cleaned, a nozzle supporter in the cleaning chamber, and/or a unified nozzle unit that includes a cleaning nozzle unit and a rinsing nozzle unit unified as a body and attached to the nozzle supporter. The cleaning nozzle unit may include a cleaner nozzle configured to inject cleaner to the printing plate and/or a first suction nozzle suctioning waste. The rinsing nozzle unit may include a rinsing liquid nozzle configured to inject rinsing liquid to the printing plate and/or a second suction nozzle suctioning the waste. A printing plate cleaning apparatus may include the cleaning chamber, a cleaning nozzle unit in the cleaning chamber, and/or a rinsing nozzle unit in the cleaning chamber. The cleaning and rinsing nozzle units may be configured to move together with each other in the cleaning chamber.

Abstract: A roll-to-roll printing system includes driven rolls to apply a feeding force to a flexible substrate so that the flexible substrate is fed from an unwinder to a rewinder, nip rolls respectively disposed above two opposite end portions of each of the driven rolls to pressurize two opposite side portions of the flexible substrate, nip roll driving motors connected to the nip rolls to rotate the nip rolls, and a control unit to receive information regarding change of torque values of the nip roll driving motors and control tension of the flexible substrate based on the information.

Abstract: The present invention provides a tool path forming method in a milling processing system, the method including: (A) a shape offset step; (B) a virtual wall forming step; (C) an interference region forming and shape revising step; (D) a closed shape forming step; (E) a cutting surface forming step; (F) tool path forming steps; (G) an unprocessed region detecting step; and (H) an uncut region tool path forming step.