Abstract: An aerosol generating device includes a housing including an accommodation space in which an aerosol generating article is accommodated and an air flow path through which fluid moves inside the housing, wherein a volume of the air flow path is variable.

Abstract: An apparatus and method for providing road view data corresponding to an inputted location. The apparatus includes a manipulation unit to received user information containing a road view data request signal; a display unit to output image data containing road view data; a camera to capture an image in a specific photographing direction and output the captured image; a sensor unit to output sensing information containing a photographing direction of the camera; and a control unit to detect, at an inputted reference position, road view data corresponding to the photographing direction of the camera output from the sensor unit and output the detected road view data.

Abstract: A furnace for drawing an optical fiber includes a body having an upper and lower openings for supplying a preform and discharging a drawn optical fiber, a heating unit installed in the body for receiving and melting the preform, an atmosphere blocking tube installed to the lower opening for discharging the drawn optical fiber and blocking the optical fiber from the atmosphere, an upper introduction port formed at an upper portion of the body for introducing an inert gas toward the preform and partially discharged outside through a gap between the preform and the upper opening, a central and lower introduction ports formed at central and lower portions for introducing an inert gas into the body, a first flow guiding means for guiding the inert gas introduced through the central introduction port upward and then flowed down along a surface of the preform, and a second flow guiding means for guiding the inert gas introduced through the lower introduction port upward and then discharged outside through the atmosp

Abstract: Disclosed is an optical fiber coating apparatus for preventing generation of bubble in a coating layer of an optical fiber when the optical fiber is coated, which includes a coating unit for allowing an optical fiber to pass through and forming a coating layer on the optical fiber; a base coupled with a lower portion of the coating unit to draw the optical fiber; a cover installed to an upper portion of the coating unit to isolate the coating unit from an external air and having an optical fiber introduction hole; a gas supply line for supplying gas, having smaller kinetic viscosity than the air, into an inner space formed by the cover; and a coating agent discharge line for discharging a coating agent remained in the inner space of the cover. The inner space forms positive pressure circumstance by using the gas having smaller kinetic viscosity than the air.