Abstract: An exhaust gas recirculation (EGR) control method includes a valve duty differentiated control including: detecting, by a controller, an engine operation region, a mixer region, and an external factor region as a valve control condition for an EGR valve duty correction variable for controlling an EGR system; applying, by the controller, the EGR valve duty correction variable to an EGR valve duty, which is set by a target air amount to an intake air amount, to calculate a minimum EGR valve duty; and outputting, by the controller, the calculated minimum EGR valve duty to an EGR valve as the EGR valve duty.

Abstract: The present disclosure provides a maintenance supporting server, including: an image receiving unit that receives an image of a military apparatus from a wearable device worn on the body of a maintenance mechanic; an object recognition unit that detects multiple maintenance objects from the image and recognizes at least one component object corresponding to at least one of the detected multiple maintenance objects; a maintenance target object extraction unit that extracts a maintenance target object based on distances between the recognized at least one component object and the respective maintenance objects; and a transmission unit that provides maintenance information of the extracted maintenance target object to the wearable device.

Abstract: The present disclosure provides a server, including: a receiving unit that receives an image of a military apparatus from a wearable device worn on the body of a maintenance mechanic; an object recognition unit that recognizes multiple maintenance objects and at least one component object from the image based on a filter that uses an Euclidean distance between pixels in the image; and a maintenance target object extraction unit that predicts a second maintenance target object to be maintained after the maintenance of a first maintenance target object currently being maintained is completed based on predetermined correlation data between the recognized at least one component object and the respective maintenance objects.

Abstract: A rubbing apparatus having a turning buffer for fabricating a liquid crystal display device is disclosed in the present invention. The turning buffer includes a first support having a first mother substrate mounted thereon, a first turning unit rotating the first support, a second support having a second mother substrate mounted thereon, and a second turning unit rotating the first support, wherein the first and second turning units are separated from one another.

Abstract: A rubbing apparatus having a turning buffer for fabricating a liquid crystal display device is disclosed in the present invention. The turning buffer includes a first support having a first mother substrate mounted thereon, a first turning unit rotating the first support, a second support having a second mother substrate mounted thereon, and a second turning unit rotating the first support, wherein the first and second turning units are separated from one another.