Abstract: An optical film for a display device, includes: a first refractive layer having an upper surface and a lower surface including first projections and second projections extending away from the lower surface in a first direction, the second projections having different heights than the first projections, the first projections having lateral sides with different angles of inclination that decrease in the first direction; and a second refractive layer disposed directly on the upper surface of the first refractive layer, the second refractive layer having a refractive index different from that of the first refractive layer.

Abstract: The present invention relates to a colorimetric biosensor, preparation method thereof, and antibiotic susceptibility testing method using the same, and more specifically, in the present invention, it is possible to prepare a colorimetric biosensor comprising a porous hydrogel structure including polydiacetylene and a hydrogel polymer (alginate, PEG-DA, etc.); and a microbial nutrient source, and it may be applied to a colorimetric biosensor for detecting microorganisms or a method for testing antibiotic susceptibility of microorganisms for allowing in real-time measurement and exhibiting excellent sensitivity using the colorimetric biosensor.

Abstract: Provided are a sharing terminal management method and a sharing terminal management apparatus. In response to an Internet access request packet, a sharing terminal management server collects terminal environment information and stores as many pieces of terminal environment information as the number of terminals permitted for each line in a permitted list via a process of transmitting a response packet for the Internet access request packet, and determines whether to transmit an Internet blocking notification, based on whether newly collected terminal environment information exists in the permitted list.

Abstract: Provided are a sharing terminal management method and a sharing terminal management apparatus. In response to an Internet access request packet, a sharing terminal management server collects terminal environment information and stores as many pieces of terminal environment information as the number of terminals permitted for each line in a permitted list via a process of transmitting a response packet for the Internet access request packet, and determines whether to transmit an Internet blocking notification, based on whether newly collected terminal environment information exists in the permitted list.

Abstract: The present invention relates to a system and method for authenticating, monitoring, and managing all terminals connected to a wireless/wired network to use Internet. A shared terminal management system comprises a management server, a charging server, a central server, a central authentication G/W server, and a proxy server, and assigns a terminal identification value for every terminal that uses Internet, authenticates terminals by reading and analyzing the assigned terminal identification value, monitors and manages shared terminals used as being connected to one line to classify lines into a basic line and an additional line, and charges for the additional line. The shared terminal identification system for identifying and managing terminals connected to one Internet line comprises a subscriber line authentication unit, a packet collecting unit, a first packet analyzing unit, an element packet transmission unit, a data management unit and a terminal determining unit.

Abstract: The present invention relates to a system and method for authenticating, monitoring, and managing all terminals connected to a wireless/wired network to use Internet. A shared terminal management system comprises a management server, a charging server, a central server, a central authentication G/W server, and a proxy server, and assigns a terminal identification value for every terminal that uses Internet, authenticates terminals by reading and analyzing the assigned terminal identification value, monitors and manages shared terminals used as being connected to one line to classify lines into a basic line and an additional line, and charges for the additional line. The shared terminal identification system for identifying and managing terminals connected to one Internet line comprises a subscriber line authentication unit, a packet collecting unit, a first packet analyzing unit, an element packet transmission unit, a data management unit and a terminal determining unit.