Abstract: Provided is a method for digital rights management of a compressed file created by compressing one or more original files.

Abstract: Disclosed are a multi-functional resin composite material including (A) a thermoplastic resin, (B) a nickel-coated carbon fiber, (C) a carbon nanotube, and (D) an inorganic material having a volume resistance of about 10?3 ?·m or less and a relative permeability of about 5000 or more, and a molded product fabricated using the same.

Abstract: A computer system includes a DRM client system in which a plurality of DRM clients are installed, comprising: a virtual OS managing unit that separates a kernel of an actual operating system installed in the DRM client system to generate and manage a virtual operating system; a branch process information managing unit that manages branch process information according to a type of a document that a user attempts to read; and an application program branching unit that analyzes the branch process information and executes DRM client agent for managing the DRM client in an actual OS region or a virtual OS region according to the type of a document that the user attempts to read to allow the user to read the document.

Abstract: Disclosed are a multi-functional resin composite material including (A) a thermoplastic resin, (B) a nickel-coated carbon fiber, (C) a carbon nanotube, and (D) an inorganic material having a volume resistance of about 10?3 ?·m or less and a relative permeability of about 5000 or more, and a molded product fabricated using the same.

Abstract: The present invention provides a thermoplastic resin composition comprising (A) a thermoplastic resin, and (B) a carbon nanofiber-metal composite including a plurality of laminated truncated, conic graphenes continuously coated with a metal. The thermoplastic resin composition according to the present invention can have excellent EMI shielding properties.

Abstract: A television (TV) link infrared (IR) demodulation circuit including: a reference voltage setting unit setting a first reference voltage and a second reference voltage, different from each other; and a differential amplifier differentially amplifying the first reference voltage received via a first input terminal and a voltage obtained by coupling an input signal with the second reference voltage, via a second input terminal and demodulating a remote control signal received via the second input terminal into a pulse signal.

Abstract: A thermoplastic elastomer composition comprises (A) about 25 to about 55 parts by weight of a block terpolymer including an aromatic vinyl compound and an alkene compound; (B) about 20 to about 50 parts by weight of a paraffin oil; (C) about 5 to about 15 parts by weight of a polyolefin resin; (D) about 5 to about 20 parts by weight of an inorganic additive; and (E) about 3 to about 15 parts by weight of a polyphenylene ether. The thermoplastic elastomer composition can have excellent physical properties, such as flexibility (or resilience), surface hardness, and restoring force at high temperatures.

Abstract: The present invention provides a thermoplastic resin composition comprising (A) a thermoplastic resin, and (B) a carbon nanofiber-metal composite including a plurality of laminated truncated, conic graphenes continuously coated with a metal. The thermoplastic resin composition according to the present invention can have excellent EMI shielding properties.

Abstract: The present invention provides a polyamide resin composition that can have good whiteness, thermal conductivity and extrusion molding properties, which includes (A) polyamide resin; (B) heat conductive filler; (C) filler; and (D) thermoplastic resin which is miscible with the polyamide resin and has a weight average molecular weight of about 500,000 to about 5,000,000.

Abstract: The present invention provides a resin composition comprising a thermoplastic resin (A), an inorganic compound having a volume resistance of less than about 10?3 ?·m and relative permeability of more than about 5,000 (B) and fiber filler (C). The resin composition of the present invention can have high impact strength and high electrical conductivity, and high electromagnetic interference (EMI) and radio frequency interference (RFI) shielding properties. The resin composition of the present invention can accordingly have multiple functions and can be used for electrical/electronic devices.

Abstract: The present invention relates to a system and method for preventing a DRM client crash using process separate execution in a case where a plurality of DRM clients are used in a single PC. The system for preventing a DRM client crash using process separate execution is characterized by a system for preventing a DRM client crash in a PC in which a plurality of different DRM clients are installed, including: a virtual OS managing unit that separates a kernel of an actual operating system installed in the PC to generate and manage a virtual operating system; a branch process information managing unit that manages branch process information according to the type of a document that a user attempts to read; and an application program branching unit that analyzes the branch process information and executes an application program in a designated OS region according to the type of a document that the user attempts to read to allow the user to read the document.

Abstract: A polymer composition includes a rubber modified vinyl resin, a polyphenylene ether resin, a cyclic alkyl phosphate compound, and an aromatic phosphate ester. In some embodiments, the cyclic alkyl phosphate compound is able to impart good flame retardancy to the composition and thermal resistance to the polymer composition.

Abstract: A method of preparing a styrene polymer-silica nanocomposite is disclosed. One embodiment of the method includes polymerizing about 100 parts by weight of a monomer mixture including about 50 to about 80% by weight of an aromatic monomer an about 20 to about 50% by weight of a vinyl cyanide monomer with about 0.5 to about 30 parts by weight of a colloidal silica dispersed in a first organic solvent.

Abstract: Provided is a method for digital rights management of a compressed file created by compressing one or more original files.

Abstract: A polymer composition includes a rubber modified aromatic vinyl resin and a cyclic alkyl phosphate compound. In some embodiments, the cyclic alkyl phosphate compound is able to impart good flame retardancy to the composition, while maintaining a good balance of the other physical and mechanical properties of the resin including Vicat Softening Temperature and impact strength.

Abstract: A polymer composition includes a substantially transparent, rubber modified aromatic vinyl resin and a cyclic alkyl phosphate compound. In some embodiments, the cyclic alkyl phosphate compound is able to impart good flame retardancy, while maintaining a good balance of the other physical and mechanical properties of the resin including the transparency and impact strength of the resin.

Abstract: The present invention provides a resin composition comprising a thermoplastic resin (A), an inorganic compound having a volume resistance of less than about 10?3 ?·m and relative permeability of more than about 5,000 (B) and fiber filler (C). The resin composition of the present invention can have high impact strength and high electrical conductivity, and high electromagnetic interference (EMI) and radio frequency interference (RFI) shielding properties. The resin composition of the present invention can accordingly have multiple functions and can be used for electrical/electronic devices.

Abstract: A thermoplastic elastomer composition comprises (A) about 25 to about 55 parts by weight of a block terpolymer including an aromatic vinyl compound and an alkene compound; (B) about 20 to about 50 parts by weight of a paraffin oil; (C) about 5 to about 15 parts by weight of a polyolefin resin; (D) about 5 to about 20 parts by weight of an inorganic additive; and (E) about 3 to about 15 parts by weight of a polyphenylene ether. The thermoplastic elastomer composition can have excellent physical properties, such as flexibility (or resilience), surface hardness, and restoring force at high temperatures.

Abstract: The flameproof resin composition according to the present invention (A) 100 parts by weight of a rubber modified polystyrene resin containing (a1) 20 to 100% by weight of graft copolymer prepared by graft-polymerizing 5 to 65% by weight of a rubber polymer, 30 to 95% by weight of an aromatic vinyl monomer, 0 to 20% by weight of a monomer copolymerizable with said aromatic vinyl monomer and 0 to 15% by weight of a monomer for providing good processability and heat resistance; and (a2) 0 to 80% by weight of copolymer prepared by polymerizing 60 to 90% by weight of an aromatic vinyl monomer, 10 to 40% by weight of a monomer copolymerizable with said aromatic vinyl monomer and 0 to 30% by weight of a monomer for providing good processability and heat resistance; and (B) 15 to 40 parts by weight of a ring-shaped alkyl phosphonic acid compound.

Abstract: A method of preparing a styrene polymer-silica nanocomposite is disclosed. One embodiment of the method includes polymerizing about 100 parts by weight of a monomer mixture including about 50 to about 80% by weight of an aromatic monomer and about 20 to about 50% by weight of a vinyl cyanide monomer with about 0.5 to about 30 parts by weight of a colloidal silica dispersed in a first organic solvent.