Abstract: Disclosed is an assembled helical turbine system, which can prevent its assembly/disassembly from being hindered by a rotational force generated during the assembly/disassembly process. The assembled helical turbine system includes a helical turbine formed with a plurality of blades in such a manner as to continuously generate a rotational force under unidirectional or multidirectional fluid flow; a housing assembly for rotatably supporting the helical turbine while surrounding the helical turbine; stoppers formed on a peripheral surface of the housing assembly in such a manner as to protrude to a predetermined height from the peripheral surface; and a housing supporter for supporting the housing assembly in such a manner that the housing assembly can be inserted into and withdrawn from the housing supporter, the housing supporter having catch grooves that are recessed in a shape corresponding to the stoppers so as to fix the stoppers.

Abstract: A power cycling test apparatus includes a sampling circuit, a controlling circuit, and a powering circuit. A first terminal of the sampling circuit is connected to an interface of a computer. A first terminal of the controlling circuit is connected to a second terminal of the sampling circuit. A second terminal of the controlling circuit is connected to a third terminal of the sampling circuit. A first terminal of the powering circuit is connected to a third terminal of the controlling circuit. A second terminal of the powering circuit is connected to an alternating current power supply. A third terminal of the powering circuit is connected to a power supply unit of the computer. The power cycling test apparatus directs the alternating current power supply to supply power to the power supply unit.

Abstract: A display apparatus is provided. The display apparatus includes a display panel; a base chassis which is disposed on a surface of the display panel, includes a first surface having a convex area and a second surface opposite the first surface and having a concave area corresponding to the convex area of the first surface; a driving circuit which is connected to the display panel to operate the display panel; a connection element which attaches the driving circuit to the convex area of the first surface of the base chassis; and a conductor which is attached to the concave area of the second surface of the base chassis.

Abstract: A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal display panel including an upper substrate, a lower substrate, and a liquid crystal layer between the upper substrate and the lower substrate, an upper polarizing plate including a first ?/4 plate positioned on the upper substrate of the liquid crystal display panel, a first linear polarizer positioned on the first ?/4 plate, and a second ?/4 plate displayed on the first linear polarizer, and a lower polarizing plate including a third ?/4 plate positioned on the lower substrate of the liquid crystal display panel and a second linear polarizer positioned on the third ?/4 plate.

Abstract: A plasma display apparatus is provided, the plasma display apparatus including: a display panel; a cable which is connected to an X electrode and a Y electrode of the display panel; and an integrated driving unit which transmits an X driving signal to the X electrode and a Y driving signal to the Y electrode. Therefore, the structure of a driving circuit can be simplified.

Abstract: Disclosed is a dispersant having a multifunctional head, and a phosphor paste composition comprising the dispersant. The dispersant has a multifunctional head that comprises an acidic group, a basic group and an aromatic group, thereby enhancing an affinity for the surface of phosphor particles and improving dispersibility.

Abstract: A waterproof structure for a portable terminal including a flexible printed circuit (FPC) extending outside of a first housing of a pair of housings from inside the first housing and arranged inside of a second housing of the pair of housings. A wiring hole is formed in each housing to provide a path allowing passage of the FPC therethrough. A waterproof member provided in the wiring hole substantially contacts at least inner walls of the housings and an outer circumferential surface of the FPC to prevent movement of the FPC. An outer circumferential surface of the waterproof member substantially contacts a circumference of an inlet of the wiring hole or an inner wall of the wiring hole. The waterproof member is provided between the housing of the portable terminal and the FPC improving a waterproof function and preventing moisture or water from being introduced into the housing of the terminal.

Abstract: A regeneration reactor of a CO2 capture system is disclosed. According to an embodiment of the present invention, in the CO2 capture system comprising a capture reactor selectively adsorbing CO2 by bringing a CO2-containing gas supplied from the outside into contact with a solid adsorbent, and a regeneration reactor separating the adsorbed CO2 from the solid adsorbent adsorbed with the CO2, the regeneration reactor includes a chamber having an inverted truncated cone shape being widened toward an upper part and narrowed toward a lower part, such that a pressure in the regeneration reactor is constantly maintained through the whole part and accordingly, a flow velocity in the chamber can be constantly maintained.

Abstract: A method for transmitting a synchronization channel using multi-antenna is disclosed. In a method for transmitting a synchronization channel for using a synchronization channel as a phase reference when decoding a broadcast channel, the method includes using a pre-decided shift value for each antenna, wherein the shift value is pre-decided with a user equipment, so as to apply circular shifts to sequences of the synchronization channel, and transmitting the sequences having the circular shifts applied thereto from a base station to the user equipment. Herein, space frequency/time block codes (SFBC/STBC) may be applied to the broadcast channel. In performing time/frequency domain synchronization in the synchronization channel, regardless of the number of transmission antennae used by the base station when transmitting signals, the synchronization process may be performed. Also, multi-antenna gain may be obtained when transmitting the synchronization channel.

Abstract: An exemplary fan assembly includes a fan and a snap-on cover. The fan includes a bracket and an impeller disposed in the bracket. The cover includes a base body, a number of first clasps extending outwardly from a first side of the base body, a number of retaining clasps extending outwardly from an opposite second side of the base body, and an operation portion connecting the retaining clasps. The base body is disposed on the bracket, the first clasps clasp a first side of the bracket, the retaining portions clasp an opposite second side of the bracket, and the operation portion presses the bracket.

Abstract: The present invention relates to a method of purifying olefin, the method comprising removing a small amount of acetylenic compounds contained in olefin by using pyrrolidinium-based or piperidinium-based ionic liquid mixtures comprising copper (I) halide. According to the method of the present invention, copper (I) halide is stabilized by pyrrolidinium-based or piperidinium-based ionic liquids, suppressing the oxidation of Cu(I) into Cu(II), whereby the capacity of removing acetylenic compounds can be maintained for a long time and the selective removal rate of acetylenic compounds to olefin can be significantly improved. In addition, since the ionic liquid mixtures comprising copper (I) halide used in the method of the present invention can be applied to both absorption and extraction processes, it can effectively remove acetylenic compounds from olefin in a more simple and economical way compared to the existing adsorption and membrane separation processes.

Abstract: A transmitting system, a receiving system, a method of processing broadcast signals and a method of receiving broadcast signals are disclosed.

Abstract: A magnetic recording head comprises a write pole tip adjacent to an air bearing surface and a return pole. In addition, a near field transducer is positioned adjacent the write pole in order to produce near field radiation to heat a portion of a recording medium to facilitate switching by the magnetic write pole. The near field transducer is a reverse optical near field transducer with internal bevel structures that enhance the magnetic write field intensity.

Abstract: Techniques are provided for receiving uplink transmissions at a plurality of antennas at a base station from a plurality of client stations. Uplink spatial transmissions are analyzed to produce a plurality of direction of arrival (DOA) components associated with the plurality of client stations. The DOA components associated with the plurality of client stations are compared and two or more client stations are selected to participate in an uplink collaborative spatial multiplexing transmission session based on dissimilarities of their DOA components.

Abstract: A dielectrophoresis (DEP) apparatus including a concentration gradient generating unit, a method of separating a target material in a sample solution using the DEP apparatus, and a method of screening the optimum condition for separating a target material are provided.

Abstract: A PMI combination ratio (PCR) being used for generating a uplink precoding matrix W is transmitted by a base station to a mobile station. Using the PCR, a PMI maximizing transmission performance and PMIMin minimizing interference to a neighboring base station are combined into the uplink precoding matrix W. Overall operations of a system can be simplified and the load of calculation for generating the uplink precoding matrix W in the mobile station can be reduced, because the PCR is provided by the base station.

Abstract: A die detachment apparatus for partially delaminating a die from an adhesive tape on which it is mounted comprises a cover having a support surface that is operative to support the adhesive tape, the support surface including a set of cover holes. A movable pin chuck is positioned below the support surface and includes a set of pin holes that are arranged coaxially with the cover holes. The movable pin chuck is configured for detachably inserting a set of pins in a first desired configuration on some of the pin holes, and the pins are also operable to be relocated on the pin chuck to form another desired configuration. The pins are operative to protrude from the cover by passing through the cover holes to contact and lift the die.

Abstract: A plasma display apparatus is provided to reduce electromagnetic interference (EMI) emission, the plasma display apparatus including: a display panel; a plurality of conductive sheets of which first surfaces are connected to a rear surface of a lower panel; and a base chassis which is connected to second surfaces of the plurality of conductive sheets through a plurality of conductive substances. Therefore, emission of EMI generated while the plasma display panel is operating can be effectively reduced.

Abstract: A fuel electrode material including a metal oxide having a perovskite type crystalline structure and represented by Formula 1: A1-xA?xB1-yB?yO3??Formula 1 wherein A and A? are different from each other and A and A? each independently include at least one element selected from the group consisting of strontium (Sr), yttrium (Y), samarium (Sm), lanthanum (La), and calcium (Ca); B includes at least one element selected from the group consisting of titanium (Ti), manganese (Mn), cobalt (Co), iron (Fe), and nickel (Ni); B? is different from B and includes at least one transition metal; x is about 0.001 to about 0.08; and y is about 0.001 to about 0.5.

Abstract: A method and system for encrypting data in a wireless communication system are provided. The system includes a first node for generating a first encryption key using a plurality of encryption key parameters when performing authentication with a second node, for changing a second parameter among the plurality of encryption key parameters to generate a second encryption key being identical to the first encryption key, if a first parameter among the plurality of encryption key parameters is changed during re-authentication between the first node and the second node, for generating the second encryption key using the changed first parameter and the changed second parameter, and for encrypting data to be transmitted to the second node using the second encryption key.