Abstract: Disclosed is a wristwatch type smart terminal. The wristwatch type smart terminal includes a display and a band for accommodating the display, and implements a wide display for displaying information and enabling a user to watch a movie or DMB, and enables the display to be accommodated in the wrist band such that the display can be worn on the wrist of the user when stored, thereby enabling the wristwatch type smart terminal to be conveniently used and carried. Furthermore, the wristwatch type smart terminal enables the display to slide or rotate on the fixing band as an axis according to the convenience, use, and purpose of the user so as to simply adjust the use position and angle, thereby preventing inconvenience of use even when the wrist type smart terminal is used in a limited space such as on the wrist.

Abstract: A folding articulating missile fin having a sliding block detent mechanism and a guided missile. The folding articulating missile fin includes a sliding block detent mechanism composed of the sliding block elastically supported by a spring and sliding in a guide groove of a lower fin, a hinge pin allowing an upper fin and a lower fin to be unfolded, and a pair of upper and lower stop rings retaining opposite ends of the hinge pin, in which when the upper fin that has been unfolded is fully folded, the upper fin keeps folded in contact with the sliding block, and when the upper fin having been folded is unfolded, the upper fin remain unfolded and in contact with the sliding block. Accordingly, the structure related to the spring is simplified, and since a sliding-type mechanism is used, the folding fin can be quickly assembled.

Abstract: Disclosed is a wristwatch type smart terminal. The wristwatch type smart terminal includes a display and a band for accommodating the display, and implements a wide display for displaying information and enabling a user to watch a movie or DMB, and enables the display to be accommodated in the wrist band such that the display can be worn on the wrist of the user when stored, thereby enabling the wristwatch type smart terminal to be conveniently used and carried. Furthermore, the wristwatch type smart terminal enables the display to slide or rotate on the fixing band as an axis according to the convenience, use, and purpose of the user so as to simply adjust the use position and angle, thereby preventing inconvenience of use even when the wrist type smart terminal is used in a limited space such as on the wrist.

Abstract: Provided is a polyhedral-shaped radiation counter which measures a radiation level of a radioactive material, in which sensor modules configured to measure the radiation level are disposed at vertexes of a polyhedral shape, respectively, and the sensor modules are connected to each other by rod-shaped frame members disposed in edge positions of the polyhedral shape and face parts of the polyhedral shape form an open space.

Abstract: A thin-layer chromatography type radiation detector includes a plurality of light-emitting members configured to generate visible light due to radiation, each of the light-emitting members including a scintillator having a surface filled with a reflector for reflecting the visible light, and are arranged in parallel to one another in a width direction, light sensors respectively coupled to one end portions of the plurality of light-emitting members and configured to measure a current generated due to the visible light generated by the plurality of light-emitting members, and an output port configured to sequentially output values of the current measured by the light sensors as digital signals.

Abstract: Provided is a polyhedral-shaped radiation counter which measures a radiation level of a radioactive material, in which sensor modules configured to measure the radiation level are disposed at vertexes of a polyhedral shape, respectively, and the sensor modules are connected to each other by rod-shaped frame members disposed in edge positions of the polyhedral shape and face parts of the polyhedral shape form an open space.

Abstract: A photolithography process and its enabling photomask that is suitable for fabricating large substrates. The photomask is comprised of a transparent substrate, a pattern on that transparent substrate, a plurality of main mask keys on side edges of the transparent substrate, and a plurality of auxiliary mask keys, each spaced apart from a corresponding main mask key. To expose a substrate, the photomask is sequentially aligned with plate keys on the substrate using the main mask keys and then the auxiliary mask keys. Alternatively, the substrate includes a plurality of main plate keys and auxiliary plate keys and the photomask includes a plurality of mask keys. To expose the substrate, the photomask is sequentially aligned with the main plate keys and then the auxiliary plate keys by using the mask keys.

Abstract: A photolithography process and its enabling photomask that is suitable for fabricating large substrates. The photomask is comprised of a transparent substrate, a pattern on that transparent substrate, a plurality of main mask keys on side edges of the transparent substrate, and a plurality of auxiliary mask keys, each spaced apart from a corresponding main mask key. To expose a substrate, the photomask is sequentially aligned with plate keys on the substrate using the main mask keys and then the auxiliary mask keys. Alternatively, the substrate includes a plurality of main plate keys and auxiliary plate keys and the photomask includes a plurality of mask keys. To expose the substrate, the photomask is sequentially aligned with the main plate keys and then the auxiliary plate keys by using the mask keys.

Abstract: An erythromycin A 9-O-benzodithiol oxime intermediate represented by the following formula (III) useful for synthesis of clarthromycin and crystalline solvate thereof: Wherein, Y1 and Y2 are independently a hydrogen atoms or trimethylsilyl groups. And, a process for the preparation of clarithromycin using the erythromycin A 9-O-benzodithiol oxime intermediate as described in the specification.

Abstract: A photolithography process and its enabling photomask that is suitable for fabricating large substrates. The photomask is comprised of a transparent substrate, a pattern on that transparent substrate, a plurality of main mask keys on side edges of the transparent substrate, and a plurality of auxiliary mask keys, each spaced apart from a corresponding main mask key. To expose a substrate, the photomask is sequentially aligned with plate keys on the substrate using the main mask keys and then the auxiliary mask keys. Alternatively, the substrate includes a plurality of main plate keys and auxiliary plate keys and the photomask includes a plurality of mask keys. To expose the substrate, the photomask is sequentially aligned with the main plate keys and then the auxiliary plate keys by using the mask keys.

Abstract: A photolithography process and its enabling photomask that is suitable for fabricating large substrates. The photomask is comprised of a transparent substrate, a pattern on that transparent substrate, a plurality of main mask keys on side edges of the transparent substrate, and a plurality of auxiliary mask keys, each spaced apart from a corresponding main mask key. To expose a substrate, the photomask is sequentially aligned with plate keys on the substrate using the main mask keys and then the auxiliary mask keys. Alternatively, the substrate includes a plurality of main plate keys and auxiliary plate keys and the photomask includes a plurality of mask keys. To expose the substrate, the photomask is sequentially aligned with the main plate keys and then the auxiliary plate keys by using the mask keys.