Abstract: An embodiment vehicle headrest device includes a headrest including a pad portion configured to contact and support a sitting passenger's head and a cover portion positioned behind the pad portion, the pad portion being configured to move diagonally, a main frame coupled to a headrest stay and configured to move upwards/downwards along the headrest stay, and a motor module portion connected to the pad portion and the main frame such that, in operation, the motor module portion is configured to move an entirety of the headrest, including the main frame, upwards/downwards or to move only the pad portion diagonally.

Abstract: Disclosed is a headrest device for a vehicle. The headrest device may include a stationary headrest portion coupled to a seatback of the vehicle and formed to extend upwards. The stationary headrest portion may be located at a rear of a head of an occupant. The headrest device may include a movable headrest portion coupled to the stationary headrest portion so as to be slidable in a vertical direction, the movable headrest portion may be located in front of the stationary headrest portion. The headrest device may include an actuator including a first side coupled to the fixed part, and a second side coupled to the movable headrest portion. The actuator may be configured to cause the movable headrest portion to slide in the vertical direction.

Abstract: The present disclosure proposes a haptic interaction-based virtual reality simulator and a method for operating the same, wherein a virtual tactical training environment is implemented through a virtual display device (for example, HMD), and a haptic stimulus is delivered on the basis of the position, direction, and shape of a virtual hand displayed while being synchronized with a haptic interaction glove worn by a tactical trainee inside the virtual tactical training environment, thereby improving the effect of the tactical training.

Abstract: The present disclosure proposes a haptic interaction-based virtual reality simulator and a method for operating the same, wherein a virtual tactical training environment is implemented through a virtual display device (for example, HMD), and a haptic stimulus is delivered on the basis of the position, direction, and shape of a virtual hand displayed while being synchronized with a haptic interaction glove worn by a tactical trainee inside the virtual tactical training environment, thereby improving the effect of the tactical training.

Abstract: Disclosed are an intelligent artillery supporting apparatus and a method of operating the same which can support a movement of a scheduled fire point of impact for each artillery weapon displayed as a result of a scheduled fire simulation for a target area to a new point of impact which an operator desires and automatically calculate and provide new firing data according to the movement of the scheduled fire point of impact, thereby effectively supporting artillery tactics.

Abstract: Disclosed are an intelligent artillery supporting apparatus and a method of operating the same which can support a movement of a scheduled fire point of impact for each artillery weapon displayed as a result of a scheduled fire simulation for a target area to a new point of impact which an operator desires and automatically calculate and provide new firing data according to the movement of the scheduled fire point of impact, thereby effectively supporting artillery tactics.

Abstract: Disclosed are an apparatus and a method for providing realistic education media which enable the most realistic education on not only an image and a sound but also even the minute motion of an expert who is proficient in a high level of technique when the technique is performed by the expert.

Abstract: A display device of a simulation flight vehicle and an operating method thereof. That is, when a vehicle type for training is selected for performing a flight training using a simulation flight vehicle, the measuring instrument information of the selected vehicle type is changed to be the same as that of an actual flight vehicle for display, such that convenience and effectiveness of the flight training can be greatly enhanced.

Abstract: Disclosed is a flight simulation apparatus. According to the flight simulation apparatus of the present disclosure, first left and right rails and second left and right rails slide along a pair of first front and rear rails and a pair of second front and rear rails so that first and second seats can freely move forward and rearward, first and second auxiliary rails are formed to position the first and second seats at various locations in the front-rear direction, and the first and second seats can be stably supported by first and second sliders.

Abstract: Disclosed are an apparatus and a method for providing realistic education media which enable the most realistic education on not only an image and a sound but also even the minute motion of an expert who is proficient in a high level of technique when the technique is performed by the expert.

Abstract: Provided is a boat control system using a joystick, which includes a boat body (10); an outboard unit (20) coupled to a rear portion of the boat body (10); a control device (30) configured to control the outboard unit (20) so that the boat body (10) runs; and a joystick (40) wirelessly connected to the control device (30), the joystick being configured to be gripped and manipulated by a fisherman, wherein the joystick (40) includes a communication unit (41) configured for wireless connection to the control device (30); a control input unit (42) configured to input a control signal to the control device (30); and a locking unit (43) configured to determine whether or not to activate the control input unit (42) or the communication unit (41).

Abstract: In an engine control method for maintaining performance of oxidation catalyst, fuel of a compressed natural gas engine under a lean-burn condition with an air-fuel equivalence ratio less than or equal to 1 is burned. Activation of the oxidation catalyst for purifying an exhaust gas of the engine is determined. Necessity of a regeneration mode for recovering catalytic activation of the oxidation catalyst according to an activation state of the oxidation catalyst and an operating condition of the engine is determined. And, the air-fuel equivalence ratio is increased to a range of from 1.10 to 1.20 when the oxidation catalyst is inactive and an engine speed is lower than a predetermined speed.

Abstract: Disclosed is a flight simulation apparatus. According to the flight simulation apparatus of the present disclosure, first left and right rails and second left and right rails slide along a pair of first front and rear rails and a pair of second front and rear rails so that first and second seats can freely move forward and rearward, first and second auxiliary rails are formed to position the first and second seats at various locations in the front-rear direction, and the first and second seats can be stably supported by first and second sliders.

Abstract: A display device of a simulation flight vehicle and an operating method thereof. That is, when a vehicle type for training is selected for performing a flight training using a simulation flight vehicle, the measuring instrument information of the selected vehicle type is changed to be the same as that of an actual flight vehicle for display, such that convenience and effectiveness of the flight training can be greatly enhanced.

Abstract: The present disclosure relates to an apparatus and a method of post-processing exhaust gas for removing sulfur oxides, and more particularly, relates to an apparatus and a method of post-processing exhaust gas for removing sulfur oxides, in which exhaust gas is produced when fuel is combusted in a diesel internal combustion engine and the exhaust gas is purified by the apparatus for post-processing exhaust gas, and in this case, sulfur oxides (SOx) is produced and stacked in a catalytic device (diesel oxidation catalyst (DOC) and selective catalytic reduction (SCR)) equipped in the apparatus for post-processing exhaust gas during a process of purifying the exhaust gas, and the sulfur oxides is removed.

Abstract: In an engine control method for maintaining performance of oxidation catalyst, fuel of a compressed natural gas engine under a lean-burn condition with an air-fuel equivalence ratio less than or equal to 1 is burned. Activation of the oxidation catalyst for purifying an exhaust gas of the engine is determined. Necessity of a regeneration mode for recovering catalytic activation of the oxidation catalyst according to an activation state of the oxidation catalyst and an operating condition of the engine is determined. And, the air-fuel equivalence ratio is increased to a range of from 1.10 to 1.20 when the oxidation catalyst is inactive and an engine speed is lower than a predetermined speed.