Abstract: Provided is a bioresorbable stent including a stent substrate including a bioresorbable polymer and a contrast medium containing an iodine component, coated on the stent substrate. Since the stent according to the present invention is absorbed in and removed from the human body after a predetermined time, it has excellent biodegradability since it has improved radiopacity by iodine contrast medium coating, it has a high radiography contrast and is very efficient even when a procedure is performed with real time radiography, and since it has low foreshortening and high flexibility, radial force, and re-coil, it may be useful for insertion into a blood vessel having a small diameter, an acute occlusive lesion, an imminent occlusive lesion, and the like.

Abstract: Disclosed are a DRAM device capable of storing charges for a long time and an operating method thereof. According to an embodiment, a DRAM device includes a channel region formed on a substrate, a gate insulating film region formed on the channel region, a floating gate region formed on the gate insulating film region, a transition layer region formed on the floating gate region, and a control gate region formed on the transition layer region and generating a potential difference with the floating gate region in response to a fact that a potential that is not less than a reference potential is applied and releasing at least one charge stored in the floating gate region or storing the at least one charge into the floating gate region, by generating a transition current due to the potential difference.

Abstract: A mask cleaning apparatus includes: a mask holding unit configured to hold a mask; a light source unit configured to irradiate light onto the mask to remove a deposition material accumulated on a surface of the mask; and a material collecting unit configured to collect the deposition material removed from the mask, wherein the material collecting unit includes: a plurality of collecting cases corresponding to kinds of the deposition material; a rotating plate having a suction hole; and a plate driving unit configured to rotate the rotating plate to connect the suction hole to at least one of the collecting cases. Based on the irradiated light, different organic deposition materials may be collected for reuse.

Abstract: A mask cleaning apparatus includes: a mask holding unit configured to hold a mask; a light source unit configured to irradiate light onto the mask to remove a deposition material accumulated on a surface of the mask; and a material collecting unit configured to collect the deposition material removed from the mask, wherein the material collecting unit includes: a plurality of collecting cases corresponding to kinds of the deposition material; a rotating plate having a suction hole; and a plate driving unit configured to rotate the rotating plate to connect the suction hole to at least one of the collecting cases. Based on the irradiated light, different organic deposition materials may be collected for reuse.

Abstract: An electronic device, a case, and a case mounting structure of the electronic device are provided. The electronic device includes a body and a cover for rotating based on a hinge portion in the body and opening and closing at a specified angle. The case includes a mounting portion for receiving at least part of an electronic device and a pressing projection for protruding outwards from the mounting portion and opening the cover in the electronic device by pressing at least part of the cover of the mounted electronic device. When the electronic device is mounting in the mounting portion and one side of the hinge portion is pressed by the pressing projection, the cover is opened at a specified angle and power of the electronic device is shut off.

Abstract: An electronic device, a case, and a case mounting structure of the electronic device are provided. The electronic device includes a body and a cover for rotating based on a hinge portion in the body and opening and closing at a specified angle. The case includes a mounting portion for receiving at least part of an electronic device and a pressing projection for protruding outwards from the mounting portion and opening the cover in the electronic device by pressing at least part of the cover of the mounted electronic device.

Abstract: Provided are an image processing device, the operating speed of which is increased by reducing mirror bounce, a photographing apparatus having the same, and a photographing method. The image processing device includes a mirror disposed to revolve with respect to a shaft, a first guide unit disposed in a path of revolution of the mirror to lessen vibration of the mirror when the mirror revolves, and a first elastic unit applying predetermined elastic force onto the first guide unit while being engaged with the first guide unit.