Abstract: Provided are: a device and method for generating hydrogen from a hydrogen reservoir, whereby it is possible to produce two weight equivalents of the weight equivalent of the hydrogen which can be emitted from ammonia borane-based compounds, in other words a hydrogen storage capacity of 13.0%, in a short time at low temperature; a catalyst used with the same; and a device for using emitted hydrogen.

Abstract: Disclosed herein is a non-glossy rubber modified aromatic vinyl-vinyl cyanide copolymer and a method for continuously preparing the same. The copolymer comprises about 80 to about 93% by weight of an aromatic vinyl-vinyl cyanide copolymer grafted onto about 7 to about 20% by weight of a diene-based rubber, and a dispersed phase of the copolymer has an average rubber particle diameter of about 6 to about 20 ?m and a span of about 1.2 to about 2.8.

Abstract: An image sensor includes a first region of a substrate having photoelectric conversion elements formed therein, and includes a second region of the substrate outside of the first region. The image sensor includes a plurality of lenses, a plurality of embossing structures, and a protective layer. The lenses are formed over the first region. The embossing structures are formed over the second region, and the embossing structures are separated from each-other. The protective layer is formed over the lenses and the embossing structures that prevent crack propagation.

Abstract: Disclosed herein is a catalyst system for selective oligomerization of ethylene, which comprises a P—C—C—P frame-work ligand, which is (R1)(R2)P—(R5)CHCH(R6)—P(R3)(R4), and a chromium-based metal compound. Also disclosed is a method of greatly enhancing the activity and selectivity of oligomerization, such as trimerization or tetramerization, using a ligand having a specific steric arrangement structure.

Abstract: Disclosed are a system and method for controlling a flash memory using a descriptor array, which may maximize a performance of a flash memory based-storage system. The system includes a descriptor array receipt unit for receiving, from a processor, a descriptor array including, at least one descriptor corresponding to at least one operation; and a flash memory control unit for verifying the descriptor included in the descriptor array and executing a flash memory control command included in the verified descriptor, wherein the flash memory control unit executes the flash memory control command independent from the operation of the processor.

Abstract: A system for processing a read request for maximizing host read performance in a flash memory-based storage device is provided. The system for processing the read request solves a bottleneck phenomenon caused by a processor by adding an independent automatic read request processor, different from a conventional system in which a processor of a storage device processes the read request. Also, when processing the read request, a storage device using a write buffer may control a process of merging data of the write buffer and a flash memory and transmitting the data to a host based on a descriptor array, thereby minimizing processor overhead.

Abstract: A weather resistant thermoplastic resin having excellent low gloss characteristics according to the present invention comprises a (meth)acrylic acid alkyl ester-based polymer (A) and an aromatic vinyl-cyanide vinyl based copolymer (B), wherein the (meth)acrylic acid alkyl ester-based polymer (A) forms a network-shaped disperse phase, and the aromatic vinyl-cyanide vinyl based copolymer (B) forms a continuous phase. The thermoplastic resin has excellent low gloss characteristics as well as superior weatherability, impact resistance, thermal resistance, delamination characteristics, and the like.

Abstract: Scanning cycle synchronization of a multicast service in a broadband wireless access system is provided. Multicast group information of a multicast group to which a Mobile Station (MS) belongs is received at the MS from an application server. A scanning cycle pattern and a scan offset of a multicast service corresponding to the multicast group are determined. A scanning cycle of the multicast is set according to the scanning cycle pattern and the scan offset. Scanning and reception of multicast data are performed according to the scanning cycle.

Abstract: This invention relates to a chromium complex compound for selective ethylene oligomerization including a chiral ligand, and to a method of selectively preparing 1-hexene or 1-octene from ethylene using the same.

Abstract: An apparatus and a method for setting a group communication session using a wireless access system are provided. The method includes transmitting, at a transmission side client, a message requesting start/end of group communication to a control Push To Talk (PTT) server, transmitting, at the control PTT server, a session set/end message including a sequence number to a participating PTT server, multicasting, at the participating PTT server, a connect/disconnect request message N times for at least one reception side client, and setting/releasing, at the at least one reception side client, a session for the group communication.

Abstract: The method of manufacturing an image sensor includes providing a semiconductor substrate including a first pixel region, first forming a first pattern on the first pixel region, first performing a reflow of the first pattern to form a sub-micro lens on the first pixel region, second forming a second pattern on the sub-micro lens, and second performing a reflow of the second pattern to form a first micro lens covering the sub-micro lens.

Abstract: A method for controlling a Hybrid Automatic Repeat Request (HARQ) of a mobile communication system is provided. The method includes establishing a default Best Effort (BE) connection, transmitting, when a Dynamic Service Addition (DSA) is request for a new service, an Advance Air Interface_Registration-Request (AAI_DSA-REQ) message including HARQ channel mapping information from a base station to a mobile station, and transmitting, when the AAI_DSA-REQ message is received from the base station, an Advance Air Interface_Dynamic Service Addition-Response (AAI_DSA-RSP) message from the mobile station to the base station in order to establish a HARQ channel based on the HARQ channel mapping information.

Abstract: A thermoplastic resin of the present invention is prepared by copolymerizing conjugated diene rubber (A), rubbery aromatic copolymer (B), heat resistant aromatic vinyl compound (C), aromatic vinyl compound (D), unsaturated nitrile compound (E) and cross linking agent (F) and can have excellent heat resistance, impact strength, and low gloss.

Abstract: The present invention provides a thermoplastic resin composition which comprises (A) a (meth)acrylic acid alkyl ester-based polymer forming a network-shaped disperse phase; and (B) an aromatic vinyl-cyanide vinyl based copolymer forming a continuous phase. The thermoplastic resin composition of the present invention can have an excellent low gloss characteristics while maintaining basic physical properties of a weather resistance, impact strength, thermal resistance, and delamination characteristics.

Abstract: The present invention provides a weather resistant thermoplastic resin with low gloss and a method of preparing the same. The thermoplastic resin of the present invention comprises a (meth)acrylic acid alkyl ester-based polymer (A) and a (meth)acrylic acid alkyl ester-based oligomeric prepolymer (B), and an aromatic vinyl-cyanide vinyl based copolymer (C), wherein the (meth)acrylic acid alkyl ester-based polymer (A) and the (meth)acrylic acid alkyl ester-based oligomeric prepolymer (B) form a network-shaped disperse phase and the aromatic vinyl-cyanide vinyl based copolymer (C) forms a continuous phase.

Abstract: Disclosed herein is a low gloss thermoplastic resin composition with a soft touch surface comprising (A) about 10 to about 80% by weight of a soft rubbery aromatic vinyl copolymer resin which comprises rubber particles with a graft ratio of about 40 to about 90% and an average particle diameter of about 6 to about 20 ?m as a dispersed phase; (B) about 4 to about 60% by weight of a rubber-modified aromatic vinyl copolymer resin; and (C) about 5 to about 80% by weight of an aromatic vinyl-vinyl cyanide copolymer resin. The molded article molded from the thermoplastic resin composition can have a soft touch surface as well as excellent low gloss and impact strength.

Abstract: The present invention relates to an arylphenoxy catalyst system producing an ethylene homopolymer or copolymers of ethylene and ?-olefins, and a method of producing an ethylene homopolymer or copolymers of ethylene and ?-olefins having a high molecular weight under a high temperature solution polymerization condition using the same. The catalyst system includes a group IV arylphenoxy-based transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst. In the transition metal catalyst, a cyclopentadiene derivative and arylphenoxide as fixed ligands are located around the group IV transition metal, arylphenoxide is substituted with at least one aryl derivative and is located at the ortho position thereof, and the ligands are not crosslinked to each other. The catalyst includes an environmentally-friendly raw material, synthesis of the catalyst is economical, and thermal stability of the catalyst is excellent.

Abstract: The present invention provides a thermoplastic resin composition that can have excellent heat resistance and impact strength comprising a rubber-modified styrene resin and a copolymer of N-substituted maleimide compound and aromatic vinyl compound.

Abstract: A thermoplastic resin of the present invention is prepared by copolymerizing conjugated diene rubber (A), rubbery aromatic copolymer (B), heat resistant aromatic vinyl compound (C), aromatic vinyl compound (D), unsaturated nitrile compound (E) and cross linking agent (F) and can have excellent heat resistance, impact strength, and low gloss.

Abstract: Disclosed herein is a catalyst system for selective oligomerization of ethylene, which comprises a P—C—C—P frame-work ligand, which is (R1)(R2)P—(R5)CHCH(R6)—P(R3)(R4), and a chromium-based metal compound. Also disclosed is a method of greatly enhancing the activity and selectivity of oligomerization, such as trimerization or tetramerization, using a ligand having a specific steric arrangement structure.