摘要:
An apparatus for fabricating an ingot according to the embodiment comprises a crucible for receiving a raw material, wherein the raw material comprises first powder and second powders having grain sizes different from each other. A method for providing a raw material according to the embodiment comprises preparing a crucible including a central area and an edge area which surrounds the central area; filling a first powder in the central area; and filling a second powder in the edge area, the second powder having a grain size different from a grain size of the first powder.
摘要:
A vertical memory device includes a substrate having a cell array region and a connection region positioned on an exterior of the cell array region. Gate electrode layers are stacked on the cell array region and the connection region of the substrate, forming a stepped structure in the connection region. Channel structures are disposed in the cell array region, extending in a direction perpendicular to an upper surface of the substrate, while passing through the gate electrode layers. Dummy channel structures are disposed in the connection region, extending in the same direction as the channel structures, while passing through the gate electrode layers forming the stepped structure. First semiconductor patterns are disposed below the channel structures, and second semiconductor patterns are disposed below the dummy channel structures. The first and second semiconductor patterns include polycrystalline semiconductor materials.
摘要:
Disclosed is an apparatus for fabricating an ingot, and a method of fabricating the ingot. The apparatus includes a crucible to receive a raw material, and a holder to fix a seed positioned on the raw material. The holder fixes a plurality of seeds.
摘要:
An electronic shelf label system is provided. There is provided a method in which an electronic shelf label periodically transmits its remaining battery capacity to a server in a electronic shelf label system according to the present invention, and the server converts the battery level into a remaining battery life (time) and provides the same, so that a manager can check the remaining battery life in a management mode of the server and a terminal, and easily manage an electronic shelf label using a battery.
摘要:
Example embodiment is provided to a method for manufacturing a semiconductor device, including forming a hard mask layer on a buried bit line and forming a storage node contact hole by using the selectivity between an interlayer insulating layer and the hard mask layer, thereby forming a contact hole using a mask of a line pattern instead of a hole pattern. Accordingly, a mask for the contact hole can be easily fabricated and the contact area can be maximized, thereby reducing the contact resistance.
摘要:
The present disclosure relates to a composition for treating anxiety disorder, particularly to a pharmaceutical composition comprising N-acetyl-L-cysteine or its derivatives for treating anxiety disorder such as post traumatic stress disorder or phobia. In accordance with the present disclosure, N-acetyl-L-cysteine can block the renewal of fear memories for a sustained period of time when it was administered during or after an exposure therapy to treat post traumatic stress disorder or phobia.
摘要:
A multi-standby portable terminal reduces interference of the transmitting antenna by skewing electromagnetic waves of others antennas. The terminal includes: a plurality of communication modules for transmitting and receiving RF signals of different frequency bands to and from the plurality of RF communication networks; and a controller for controlling the plurality of communication modules so as to be coupled to an RF communication network selected by a user, via a communication module corresponding to the selected RF communication network. The controller performs a control operation such that the communication module corresponding to the selected RF communication network radiates electromagnetic waves corresponding to a frequency band of the selected RF communication network, and remaining communication modules radiate electromagnetic waves of frequency bands that differ from those of respective corresponding RF communication networks.
摘要:
The present disclosure relates to a composition for treating anxiety disorder, particularly to a pharmaceutical composition comprising N-acetyl-L-cysteine or its derivatives for treating anxiety disorder such as post traumatic stress disorder or phobia. In accordance with the present disclosure, N-acetyl-L-cysteine can block the renewal of fear memories for a sustained period of time when it was administered during or after an exposure therapy to treat post traumatic stress disorder or phobia.
摘要:
A system and a method for controlling transport rate of real time streaming service between a streaming server and a streaming client connected via a predetermined network. In transmitting multimedia contents to the streaming client, the streaming server controls the transport rate by compensating as much as accumulatively added average value a difference between a buffer level reported from the streaming client and a required buffer level. Furthermore, in order to prevent an initial reproduction delay, the streaming server controls by a maximum transport rate allowed by the network. By which, an overflow or an under-run of buffer occurring when streaming service is given for a long time can be prevented, and a time delay can be minimized from a time of streaming start point to a time of reproduction in actual screen or sound.