Lg Chem, Ltd

Korea Institute of Energy Research

Electronics and Telecommunications Research Institute

Industry-University Cooperation Foundation Hanyang University

Iucf-hyu

Hyun Jin Lee

Jong Kyu Kim

Sang Nam Lee

Yong Heack Kang

Sung Soo Yoon

No Ma Kim

Je Gwon Lee

Eun Ji Shin

Kee Seong Cho

Myong Jo Ham

Yang Kyoo Han

Hwa Suk Kim

Hwan Ki Yoon

Chang Kyun Yu

Kwan Kyo Chai

Byung Sun Lee

Hyun Soon Shin

Yeon Sik Jung

Gi Dae Choi

Hwan Jo Heo

Hyun Woo Oh

Eon Seok Lee

Sung Jin Moon

Dong Hack Suh

Eung Ha Kim

Jun Yong Hwang

Ga Young Han

Jinseon Kim

Tae Ho Yeam

Soongin Kim

Kyung Mi Lee

Won Jung Kim

Yun Cheol Yang

Seong Heun Cho

Dong Wan Han

Hong Jun Ahn

A conductive resin composition including 100 parts by weight of a base resin (A), which includes a polyester, a polyarylene ether, and an aromatic elastomer; 3 to 12 parts by weight of two or more polyfunctional reaction agents (B); 0.1 to 3 parts by weight of carbon nanotubes (C); 0.1 to 5 parts by weight of carbon nanoplates (D); and 1 to 10 parts by weight of glass powder (E), a method of preparing the conductive resin composition, and a molded article including the conductive resin composition. The conductive resin composition has excellent moisture stability and heat resistance in addition to excellent appearance, rigidity, and conductivity; can minimize the influence of moisture and heat when exposed to external environments; and thus, can be used in exterior parts to replace metal parts used in automobiles.

Conductive resin composition, method of preparing the same, and molded article including the same

A decentralized group signature method for an issuer-anonymized credential system includes (a) an initial system setup operation of defining elements of a group signature method and information that is generated and shared by each group member, (b) an initial group member setup operation, (c) a group member participation operation of adding a new group member to a group, (d) a group signature operation of putting a group signature on a specific message, (e) an operation of verifying the group signature, (f) an operation of removing anonymity from a group signature for a specific group member with agreement of group members, and (g) an operation of revoking a specific group member with agreement of the group members. Exclusive authority of a group manager is distributed to the group members.

Decentralized group signature scheme for credential systems with issuer anonymization

A polyphenylene sulfide resin composition including (a) 25% to 75% by weight of a base resin; (b) 0.1% to 10% by weight of a laser direct structuring (LDS) additive; (c) 0.1% to 5% by weight of a plating seed generation promoter; (d) 10% to 60% by weight of a glass fiber; and (e) 0% to 40% by weight of a mineral filler, based on a total weight of the polyphenylene sulfide resin composition. The base resin includes 95% by weight or more of a polyphenylene sulfide resin based on a total weight of the base resin. A method of preparing the polyphenylene sulfide resin composition, and an injection-molded article manufactured using the polyphenylene sulfide resin composition.

Polyphenylene sulfide resin composition, method of preparing polyphenylene sulfide resin composition, and injection-molded article manufactured using polyphenylene sulfide resin composition

Provided is an hybrid solar heat absorption cooling system comprising: an absorption refrigerator; a solar heat steam generator configured to generate steam using solar heat; a daytime steam supplying unit configured to supply steam generated by the solar heat steam generator during the day as a heat source for the absorption refrigerator; a daytime hot water storage tank configured to store hot water discharged from the absorption refrigerator during the day; a nighttime hot water supplying unit configured to supply hot water stored in the daytime hot water storage tank during the night as a heat source for the absorption refrigerator; a nighttime hot water storage tank configured to store hot water discharged from the absorption refrigerator during the night; and a daytime hot water supplying unit configured to supply hot water stored in the nighttime hot water storage tank during the day to the solar heat steam generator.

Hybrid solar heat absorption cooling system

A solar power generation system according to the present invention comprises heat pipes which are arranged radially on the outer peripheral surface of an absorber to increase heat transfer effectiveness between the absorber and the heat pipes, thereby improving heat transfer efficiency. Also, the solar power generation system has the advantage of operating the system more stably and efficiently even in suddenly changing weather conditions, due to the improved heat transfer efficiency and capability to store heat for a specific amount of time. In addition, when the heat pipes are extrapolated onto the absorber, heat can be transferred more effectively by increasing contact surface area with between the absorber and the heat pipes. Furthermore, heat can be transferred more effectively by increasing the contact surface area by coupling the heat pipes to a heat exchange portion through a block-coupling technique.

Solar power generation system

A solar power generation system according to the present invention comprises a heat pipe arranged so as to come into close contact with an absorption module, for absorbing heat from the absorption module and directly transferring heat to a heat conversion electricity generator, and thereby has the advantages of rendering the system compact by simplifying a heat transfer structure and more effectively transferring heat by increasing contact surface area with the absorption module. Also, ample heat storage space is secured by forming the heat pipe to have a larger volume (heat capacity) than an absorption heat pipe in the absorption module so that an ample heat source can be provided by the heat conversion electricity generator, even during weather conditions when solar radiation can fluctuate suddenly, thereby allowing more stable and efficient operation of the system.

The present invention relates to a method for forming a metal nanowire or a metal nanomesh. More particularly, the present invention relates to a method for forming a metal nanowire or a metal nanomesh capable of forming a variety of metal nanowires or metal nanomeshes in a desired shape by a simplified method. The method for forming a metal nanowire or a metal nanomesh includes the steps of forming a block copolymer thin film on a substrate, in which the block copolymer thin film includes specific hard segments and soft segments containing one or more polymer repeating units selected from the group consisting of a poly(meth)acrylate-based repeating unit, a polyalkylene oxide-based repeating unit, a polyvinylpyridine-based repeating unit, a polystyrene-based repeating unit, a polydiene-based repeating unit and a polylactone-based repeating unit; conducting orientation of the hard segments and soft segments in a lamellar or cylindrical form in the block copolymer thin film; selectively removing the soft segments; adsorbing a metal precursor onto the hard segments; and removing the hard segments.

Method for forming metal nanowire or metal nanomesh

The present invention relates to a dual-passage open-type solar heat absorber having a porous plate array, and more particularly, to a dual-passage open-type solar heat absorber which is formed in a form of a rectangular-shaped container in order to increase a contact area with collected sunlight and easily extend in a lateral direction or in a form of a circular-shaped container which is advantageous when a pressure is applied thereto, and which includes a main body formed in a formed of a rectangular or circular-shaped container by using a three-layered tube to form a dual passage therein so that heat is prevented from being lost through an outer wall.

Double flow channel open-type solar heat absorber having porous plate arrangement

The present invention relates to a method for forming a silicon oxide nanopattern, in which the method can be used to easily form a nanodot or nanohole-type nanopattern, and a metal nanopattern formed by using the same can be properly applied to a next-generation magnetic recording medium for storage information, etc., a method for forming a metal nanopattern, and a magnetic recording medium for information storage using the same. The method for forming a silicon oxide nanopattern includes the steps of forming a block copolymer thin film including specific hard segments and soft segments containing a (meth)acrylate-based repeating unit on silicon oxide of a substrate; conducting orientation of the thin film; selectively removing the soft segments from the block copolymer thin film; and conducting reactive ion etching of silicon oxide using the block copolymer thin film from which the soft segments are removed, as a mask to form a silicon oxide nanodot or nanohole pattern.

Method for forming silicon oxide and metal nanopattern's, and magnetic recording medium for information storage using the same

The present invention relates to a light-sensitive compound, a polymer formed by using the compound, and a production method of the compound and polymer. More particularly, the present invention relates to a unit compound that exhibits light-sensitivity with respect to three different wavelengths, a polymer having light-sensitive, which is polymerized by using the unit compound as a monomer, and a production method of the compound and polymer. The light-sensitive compound and the polymer according to the present invention may be usefully applied to an optical film.

Light-sensitive compound, polymer polymerized with light-sensitive compound and preparation method thereof

Provided are a method and system for providing a multicast service in a next-generation network (NGN), which can improve the quality-of-service (QoS) of broadcast services by separating a routing path calculation function and a resource allocation function during the setting of a multicast broadcast channel and enabling a resource control server to perform centralized resource control. In the method and system for providing a multicast service in an NGN, a multicast router calculates a routing path, and a number of multicast routers on the calculated routing path issue a request for resources for a desired multimedia broadcast channel, and a resource control server allocates resources to the multicast routers on the calculated routing path.

Method and system for providing multicast service in next-generation network

Provided is an access mediator system for mediating convergence services of communication and broadcasting using a non-communicative appliance. The access mediator system includes: a non-communicative appliance access interface unit performing an interface function so as to converge a non-communicative appliance comprising an interface supporting image and voice multimedia data but not including a communication function; a broadband convergence network access interface unit performing an interface function so as to access a broadband convergence network connected to various service provider servers via wire and wireless interfaces; and a main processor accessing a selected service provider server via the broadband convergence network access interface unit to mediate the selected service provider server and the non-communicative appliance.

System for mediating convergence services of communication and broadcasting using non-communicative appliance

Growing community of inventors

Daejeon, South Korea

Hyun Jin Lee