Abstract: A method in which a transmitting terminal included in an talk-around direct communication (TDC) network transmits data includes: determining a data frame for transmitting the data; requesting to reserve a data transmission segment included in the data frame through a transmission request segment included in the data frame; receiving a response signal transmitted in a transmission response segment included in the data frame; and analyzing the response signal and transmitting the data through the data transmission segment.

Abstract: Provided are an electrolyte for a magnesium secondary battery having improved ion conductivity and stability, and a method for preparing the same. The electrolyte for a magnesium secondary battery shows higher ion conductivity as compared to the electrolyte according to the related art, increases the dissociation degree of a magnesium halide electrolyte salt, and provides stable electrochemical characteristics. In addition, after determining the capacity, output characteristics and cycle life of the magnesium secondary battery including the electrolyte, the battery provides significantly higher discharge capacity after 100 cycles, as compared to the electrolyte according to the related art. Therefore, the electrolyte may be useful for an electrolyte solution of a magnesium secondary battery.

Abstract: A transmitting/receiving apparatus and method for separating multiple broadcast signals in a terrestrial cloud broadcast service are provided. A method of transmitting a terrestrial cloud broadcast signal by a terrestrial cloud broadcast signal transmitting apparatus may include generating the terrestrial cloud broadcast signal based on a frame structure for terrestrial cloud broadcast, the frame structure including a plurality of sub-frames, wherein a first sub-frame of the sub-frames includes two or more preamble symbols and transmitting the generated terrestrial cloud broadcast signal.

Abstract: The invention relates to compounds which are useful as inhibitors of 6-oxopurine phosphoribosyltransferases such as hypoxanthine-guanine-(xanthine) phosphoribosyltransferase (HG(X)PRT).

Abstract: A method and apparatus for audio signal encoding for noise reduction are provided. The method includes: receiving an audio signal and performing modified discrete cosine transformation (MDCT) on the audio signal to convert the audio signal into a long block or a short block; reducing noise included in the audio signal in accordance with the long block or the short block; and performing advanced audio coding (AAC) on the long block or the short block in which noise is reduced.

Abstract: A sensor network management apparatus generates group specification information including requirements corresponding to an externally input service request, and forms a logical sensor network for the service request based on the generated group specification information. USN actuating information relating to USN (ubiquitous sensor network) resources included in the logical sensor network is generated, and USN resources are operated based on the USN actuating information.

Abstract: An optical waveguide for optical interconnection including a polymer sheet comprising a crosslinked product of a prepolymer, the prepolymer prepared by condensation reaction between a first compound represented by the formula Ar—H, where Ar comprises (a) a crosslinkable moiety at one end, (b) a moiety selected from the group consisting of —O—, —S—, —COO—, —CO—, —COS—, —SO2—, and —NH—, and (c) one or two repeating units selected from the group consisting of: where A is carbon or nitrogen, and X is hydrogen or halogen; and a second compound consisting of an aromatic moiety.

Abstract: Provided are a metamaterial structure and a manufacturing method thereof. The metamaterial structure includes a dielectric layer, nanowires penetrating the dielectric layer and arranged in a spacing having negative refraction with respect to an electromagnetic wave incident on the dielectric layer, and coating layers formed between the nanowires and the dielectric layer.

Abstract: The present application relates to a method of generating a downlink frame. The method of generating the downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence and a second scrambling sequence determined by the primary synchronization signal; generating a third scrambling sequence determined by the first short sequence and a fourth scrambling sequence determined by the second short sequence; scrambling the short sequences with the respective scrambling sequences; and mapping the secondary synchronization signal that includes the first short sequence scrambled with the first scrambling sequence, the second short sequence scrambled with the second scrambling sequence and the third scrambling sequence, the second short sequence scrambled with the first scrambling sequence and the first short sequence scrambled by the second scrambling sequence and the fourth scrambling sequence to a frequency domain.

Abstract: The present invention relates to a method for fabricating a LiFePO4 cathode electroactive material for a lithium secondary battery by recycling, and a LiFePO4 cathode electroactive material for a lithium secondary battery, a LiFePO4 cathode, and a lithium secondary battery fabricated thereby. The present invention is characterized in that a cathode scrap is heat treated in air for a cathode electroactive material to be easily dissolved in an acidic solution, and amorphous FePO4 obtained as precipitate is heat treated in an atmosphere of air or hydrogen so as to fabricate crystalline FePO4 or Fe2P2O7. According to the present invention, a cathode scrap may be recycled by using a simple, environmentally friendly, and economical method. Further, a lithium secondary battery fabricated by using a LiFePO4 cathode electroactive material from the cathode scrap is not limited in terms of performance.

Abstract: Disclosed is a cathode active material for a lithium ion secondary battery which includes a lithium manganese borate compound and a manganese oxide. The lithium manganese borate compound contains a larger amount of lithium than conventional lithium manganese borate compounds. Therefore, a larger amount of lithium is deintercalated in a battery including the cathode active material, and as a result, the specific capacity of the battery reaches 100-160 mAh/g, which is much higher than that of conventional lithium ion secondary batteries (<80 mAh/g). Also disclosed is a method for producing the cathode active material.

Abstract: A small area electrostatic aerosol collector combines electrostatic collection of aerosol particles and electrohydrodynamic spraying of fluid so that a sample collected electrostatically can have fluid applied thereto. The fluid may assist with disaggregation and/or desalinization of biological material collected onto a sample substrate. A controller associated with the collector may control an electrostatic charge device and a spraying device such that the charge device and spraying device may operate in alternating fashion, or the charge device and spraying device may operate simultaneously. Further, mechanical systems are provided, for the disaggregation of particulate clusters collected onto a sample substrate.

Abstract: A method for manufacturing a dummy gate in a gate-last process is provided. The method includes: providing a semiconductor substrate; growing a gate oxide layer on the semiconductor substrate; depositing bottom-layer amorphous silicon on the gate oxide layer; depositing an ONO structured hard mask on the bottom-layer amorphous silicon; depositing top-layer amorphous silicon on the ONO structured hard mask; depositing a hard mask layer on the top-layer amorphous silicon; forming photoresist lines having a width ranging from 32 nm to 45 nm on the hard mask layer; and etching the hard mask layer, the top-layer amorphous silicon, the ONO structured hard mask and the bottom-layer amorphous silicon in accordance with the photoresist lines, and removing the photoresist lines, the hard mask layer and the top-layer ?-Si. Correspondingly, a dummy gate in a gate-last process is also provided.

Abstract: The present application relates to a modified rubber masterbatch and preparation method thereof, rubber composition prepared therewith and vulcanized rubber and preparation method thereof. The modified rubber component comprises uncrosslinked rubber and rubber particles having crosslinked structure dispersed therein, wherein the rubber particles having crosslinked structure are synthetic rubber particles and/or natural rubber particles, have an average particle size of 20-500 nm and a gel content of 60% by weight or higher, and wherein the uncrosslinked rubber is styrene-butadiene rubber. The weight ratio of the rubber particles having crosslinked structure to the uncrosslinked rubber is greater than 20:80 and less than or equal to 80:20. The rubber composition comprises a blend of modified rubber component and base rubber, in which the modified rubber masterbatch is present in an amount of 1 to 70 parts by weight, relative to per 100 parts by weight of the base rubber.

Abstract: A transmitting device, a receiving device, an optical communication system, and associated methods are provided. The transmitting device transmits an optical signal containing data, and comprises: an optical tone generator for generating at least one optical tone; at least one encoder for performing advanced coding on at least one data signal respectively, each of the at least one data signal carrying a part of the data; at least one mapper for performing high order modulation on the at least one coded data signal; and an up-converter for up-converting the at least one high-order-modulated data signal into the optical signal to be outputted through the at least optical tone. Thereby, high speed (e.g., over 1-Tb/s) transmission per single channel over a long-haul distance (e.g. over 1000-km) with error-free recovery may be achieved.

Abstract: The method for mounting a ranging arm on a body of a longwall shearer loader characterized by the fact that the shearer's ranging arm (7) is pivotally connected through the eyes (9) and at least one pin (3) with the eyes of the articulated joint (6) located from the side wall side in the bottom part of the shearer's body (5) outside of the chain conveyor (11). The axis of the pin or pins (3) is situated below the axis of the motor (12) of the shearer's ranging arm (7). The hydraulic cylinder (4) is pivotally connected with the eyes (8) of the shearer's ranging arm (7) located between the eyes of the articulated joint (6) with a pin (2), the axis of which is situated above the axis of the motor (12) of the shearer's arm (7). The hydraulic cylinder (4) is pivotally connected with the shearer's body (5) with a pin (1), the axis of which is situated below the axis of the motor (12) of the shearer's arm (7) and below the axis of the feed drive shaft (10).

Abstract: Provided are a compound capable of becoming an organic transparent electrode, etc. One aspect of the present invention relates to an organic transparent electrode, which is configured from an organic molecule having a Brønsted acid functional group, electron-donating properties, and a ?-conjugated plane, characterized by being self-assembled. Another aspect of the present invention relates to the organic transparent electrode characterized in that the Brønsted acid functional group is one member selected from among a carboxylic acid functional group, a sulfonic acid functional group, a phosphonic acid functional group and a thiophosphonic acid functional group.

Abstract: Systems and methods for improved packet throughput using partial packets are provided in which data recovery of partial packets of a plurality of received coded packets is performed across the plurality of received coded packets. The plurality of received coded packets, including the received partial packets, can be buffered in a memory and used in recovering the data for the partial packets. As soon as the total number of received packets (including valid and partial) becomes greater than the generation size, a decoding process can be attempted utilizing the partial packets as part of the redundancy used for data recovery. During the decoding process, the received packets are evaluated across packets instead of on a per-packet basis.

Abstract: Provided are a method and apparatus for encoding and decoding images based on constrained offset compensation and a loop filter. The image decoding apparatus: receives, from an encoder, a first indicator indicating whether a sequence, a picture, a frame, a slice, a coding unit (CU), a prediction unit (PU), and/or a transform unit (TU) supports constrained offset compensation; receives, from the encoder, a second indicator indicating whether constrained sample adaptive offset (SAO) compensation or an adaptive loop filter (ALF) is applied; receives a parameter from the encoder; and applies the SAO compensation or the ALF to pixels of a restored image on the basis of the second indicator and the parameter.

Abstract: A distributed wireless communication system includes multiple access points, each with one or more antennas. The access points do not necessarily have synchronized transmitting and receiving radio frequency oscillators. Approaches to channel estimation between the access points and one or more wireless clients account for the lack of synchronization, and do not necessarily require capabilities at the clients that go beyond required or optional features of standard wireless Ethernet (e.g., 802.11n, 802.11g, or 802.11a), thereby supporting “legacy” clients while supporting high data throughput approaches that provide coherent transmission from the multiple antenna of the access points.