Abstract: A wearable display device using an augmented reality interface is disclosed. The disclosed device includes: a sensor unit configured to acquire image information; a watch recognition part configured to recognize a watch worn by a user from the acquired image information; an interface image generator part configured to generate a graphic interface image using the recognized watch as a reference and to show the graphic interface image in the acquired image; a control command recognition part configured to recognize a control command using the graphic interface image; and a processor configured to execute the recognized control command. The device provides the advantage of supporting various interface commands without requiring a separate interface device.

Abstract: The present invention relates to a stabilized vitamin C derivative with a peptide molecule linked to vitamin C or a pharmaceutically acceptable salt thereof, a method of preparing the same, and a composition containing the same.

Abstract: A vision-based augmented reality system using an invisible marker indicates an invisible marker on a target object to be tracked, such that it can rapidly and correctly track the target object by detecting the invisible marker. The augmented reality system includes a target object (TO) including an infrared marker (IM) drawn by an invisible infrared light-emitting material; a visible-ray camera (110) for capturing an image of the TO; an infrared-ray camera (120) for capturing an image of the IM included in the TO image; an optical axis converter for allowing the infrared-ray camera (120) and the visible-ray camera (110) to have the same viewing point; an image processing system (140) for rendering a prepared virtual image to the TO image to generate a new image.

Abstract: A method of engine control includes: determining and comparing actual and target supply amounts of EGR gas; sensing an open rate of an EGR valve to control the actual supply amount supplied to an intake line; if the actual supply amount is smaller than the target supply amount and if the EGR-valve open rate is at a maximum, fixing an open rate of a bypass valve installed at a bypass line that bypasses an electrodynamic turbocharger to a minimum open rate; and controlling the EGR-valve open rate in a state in which the bypass-valve open rate is fixed to a minimum open rate. Therefore EGR gas can be more precisely and stably supplied.

Abstract: A method for controlling a robot cleaner includes: detecting a cleaning target space, setting a cleaning region within the detected cleaning space and cleaning the set cleaning region; if the set cleaning region is completely cleaned, moving to a not-yet-cleaned region adjacent to a cleaning completion spot of the cleaning region; and setting a new cleaning region in the not-yet-cleaned region and performing cleaning. Without repeating a cleaning region in the cleaning target space, the robot cleaner can extend its cleaning region, so the cleaning efficiency of the robot cleaner can be improved. Also, the robot cleaner can be smoothly enter a new cleaning target space or released therefrom. In particular, even when the entrance of the new cleaning target space is narrow, the robot cleaner can smoothly enter the new cleaning target space and gets out thereof.

Abstract: A brake negative pressure generating device of a vehicle includes: an electrically-driven supercharger for drawing in, compressing, and supplying outside air; a vacuum chamber connected to an inlet opening of the electrically-driven supercharger and supplying negative pressure for brake force boosting; a negative pressure supply passage for connecting the inlet opening of the electrically-driven supercharger and the vacuum chamber; and a first negative pressure control valve for opening and closing an inlet passage. Accordingly, the electrically-driven supercharger is run to supplement brake negative force if the brake negative force is not sufficient.

Abstract: An apparatus and a method for providing a tactile sensation in cooperation with a display device are disclosed. The disclosed apparatus includes: a display-device communication unit configured to receive information on a virtual image from the display device; a determiner unit configured to determine whether or not a user attempts an interaction with the virtual image by using an image of a user body; and a tactile-sensation provider unit configured to provide a tactile sensation to a preset body part of the user based on a determination result of the determiner unit. The disclosed apparatus can enable the user to interact with a virtual image with verisimilitude.

Abstract: A variable intake manifold apparatus for an internal combustion engine, may include an inlet drawing in outside air and being connected to a main passage, first and second outlets branched from the main passage and fluid-connected to the inlet through the main passage and releasing the outside air drawn through the main passage through the first and second outlets, and a partition dividing the main passage and one of the first and second intake passages.

Abstract: An engine having a variable valve timing device and a variable tumble device, may include the variable valve timing device advancing or delaying a rotation of an intake camshaft or an exhaust camshaft, an intake valve or an exhaust valve configured to be operated by the intake camshaft or the exhaust camshaft respectively to open and close an intake port or an exhaust port, and the variable tumble device that may be disposed on an upstream side of the intake valve in the intake port and changes a flow of a gas being suck to form a tumble in a combustion chamber.

Abstract: The present invention relates to a weight balancer (100) and a pipe joining method that is capable of reducing a load of pipes when arranging and welding the pipes in ships, plants, piping work sites and the like.

Abstract: Disclosed are a mobile robot and a controlling method thereof. The mobile robot comprises: a case; and a sensor unit having two or more sending portions and two or more receiving portions arranged on an outer surface of the case separately and alternately. The plurality of sending portions and receiving portions are arranged in an alternating manner, thereby having a directivity. Also, since signals received through the receiving portions are judged based on a reference value, an area unallowable to be detected for an obstacle sensing is minimized, which allows an obstacle to be detected more accurately. When the obstacle corresponds to a side wall on the basis of a moving path of the mobile robot, a distance between the side wall and the mobile robot is calculated based on signals received by the receiving portion closest to the side wall. Accordingly, the mobile robot can move with maintaining a constant distance from the side wall.

Abstract: There are provided a device and method for detecting joint parts of a steel strip in an endless hot rolling process.

Abstract: A multispectral imaging method and system is provided. A multispectral imaging method of the present invention includes determining an on-off combination of a plurality of light sources illuminating a scene; illuminating the scene with the light sources according to the on-off combination selected on the basis of a first control signal generated by a microcontroller; capturing an image of the scene by operating a camera on the basis of a second control signal synchronized with the first control signal; determining a plurality of spectral basis functions and weights of the spectral basis functions; and acquiring a continuous spectral reflectance by summing values obtained by multiplying the spectral basis functions and respective weights. The multispectral imaging method of the present invention is practical and efficient in that a continuous spectral reflectance image can be acquired with a minimized number of measurements required for obtaining spectral reflectance.

Abstract: Disclosed is a computer-integrated surgery aid system for minimally invasive surgery and a method for controlling the same. The system includes a surgery planning system for creating three-dimensional information from two-dimensional images obtained by means of biplanar fluoroscopy so that spinal surgery can be planned according to the image information and a scalar-type 6 degree-of-freedom surgery aid robot adapted to be either driven automatically or operated manually.

Abstract: Disclosed herein are an alternating copolymer of phenylene vinylene and biarylene vinylene, a preparation method thereof, and an organic thin film transistor including the same. The organic thin film transistor maintains low off-state leakage current and realizes a high on/off current ratio and high charge mobility because the organic active layer thereof is formed of an alternating copolymer of phenylene vinylene and biarylene vinylene.

Abstract: The present invention relates to a method and system for restoring a transferred mobile service by a mobile transfer service. To this end, the present invention provides a method for restoring a mobile service that releases a mobile transfer state of a first mobile terminal when it is confirmed that a state where the power strength of a common pilot channel received from a second mobile terminal is a previously set threshold value or less is maintained for a previously set threshold time or more. In addition, the present invention provides a method for restoring mobile service that releases a mobile transfer state of the first mobile terminal when it is confirmed that the frequency of a period that is the power threshold value or less of the common pilot channel received from the second mobile terminal exceeds the previously set threshold frequency within the previously set time unit.

Abstract: A robot includes a second bumper that senses an obstacle having such a height that can be passed over. Thus, the robot can pass over the obstacle without avoiding it.

Abstract: Methods of managing a key cache are provided. One method may include determining whether a given key has previously been loaded to a trusted platform module (TPM), loading the given key to the TPM and generating a key cache object corresponding to the given key if the determining step determines the given key has not previously been loaded to the TPM and restoring the given key to the TPM based on the key cache object corresponding to the given key if the given key has previously been loaded. Another method may include extracting a key from a TPM if the TPM does not have sufficient memory to load a new key, the extracted key corresponding to a least frequently used key cache object within the TPM. Another method may include restoring a key to a TPM, the restored key having been previously loaded to and extracted from the TPM.

Abstract: Disclosed herein are an alternating copolymer of phenylene vinylene and biarylene vinylene, a preparation method thereof, and an organic thin film transistor including the same. The organic thin film transistor maintains low off-state leakage current and realizes a high on/off current ratio and high charge mobility because the organic active layer thereof is formed of an alternating copolymer of phenylene vinylene and biarylene vinylene.

Abstract: A vision-based augmented reality system using an invisible marker indicates an invisible marker on a target object to be tracked, such that it can rapidly and correctly track the target object by detecting the invisible marker. The augmented reality system includes a target object including an infrared marker drawn by an invisible infrared light-emitting material; a visible-ray camera for capturing an image of the TO; an infrared-ray camera for capturing an image of the IM included in the TO image; an optical axis converter for allowing the infrared-ray camera and the visible-ray camera to have the same viewing point; an image processing system for rendering a prepared virtual image to the TO image to generate a new image.