Abstract: A bubble-ink jet print head includes: a substrate having ink chambers to store ink and resistance heat emitting bodies to heat ink disposed thereover; and an ink supply passage which penetrates the substrate and which is connected with the ink chambers. The ink supply passage includes: a first trench formed at a first surface of the substrate in a first pattern having a separating distance from at least one of inlets of the ink chambers and connecting portions between the adjacent ink chambers, the first surface of the substrate having the ink chambers disposed thereover, and a second trench formed at a second surface of the substrate in a second pattern, having one of an area equal to and an area smaller than that of the first trench in the range of the first pattern of the first trench, and in communication with the first trench.

Abstract: A heat exchanger for a refrigerator and a method for manufacturing a tube thereof with improved heat exchanger heat transfer efficiency. The heat exchanger for a refrigerator comprising of: a tube to guide a refrigerant; and a plurality of ridges disposed on an inner peripheral surface of the tube, the ridges configured to cause the refrigerant flowing along the tube to form a turbulent flow. The method of manufacturing a tube having a plurality of ridges comprising the steps of: providing a surface of a plate; forming ridges on the surface of the plate; and coupling opposite longitudinal edges of the plate such that the surface of the plate provided with the ridges becomes an inner peripheral surface of the tube.

Abstract: A method and device for selecting a word to be defined in a mobile communication terminal having an electronic dictionary function. The method includes selecting a word in a displayed text document in response to a first input, displaying the selected word in a search window, searching for the displayed word in response to a request to search for the displayed word, displaying information resulting from the search, and terminating display of the information and displaying the text document.

Abstract: The present invention relates to a styrenic thermoplastic resin composition, and more particularly to a styrenic thermoplastic resin composition comprising a non-halogen flame-retardant having superior flame-retarding properties and impact strength. The present invention provides a flame-retarding styrenic thermoplastic resin composition comprising a) 100 weight parts of a base resin comprising i) 10 to 50 weight parts of a rubber-modified styrene-containing graft copolymer, ii) 5 to 20 weight parts of phenol novolac resin, and iii) 20 to 70 weight parts of a styrene-containing copolymer; and b) 5 to 20 weight parts of an aromatic phosphate. In addition, the a) base resin may further comprise iv) 10 to 40 weight parts of a thermoplastic polyurethane resin.

Abstract: A passivation layer is deposited and a photoresist is formed. The photoresist includes first to third portions with decreased thickness, the second portions located on portions of drain electrodes and data lines and the third portions located on portions of gate lines. A mask for forming the photoresist has rectilinear slits with width and distance of about 0.8-2.0 microns on an area corresponding to the second portions. The passivation layer and an underlying semiconductor layer as well as the photoresist are etched to expose portions of the gate insulating layer under the third portions of the photoresist as well as portions of the passivation layer under the second portions of the photoresist. The exposed portions of the passivation layer and the gate insulating layer are removed to expose the drain electrodes, the gate lines and the data lines as well as portions of the semiconductor layer, which are subsequently removed.

Abstract: A cooking apparatus is disclosed. The cooking apparatus includes a housing having a cooking chamber and a heating unit. The heating unit includes a partition plate detachably installed in the chamber, the partition plate partitioning the chamber into sub-chambers, and a heater configured to heat at least one of the sub-chambers.

Abstract: The present invention relates to 1,3-dioxoisoindole derivatives of Formula (1) or pharmaceutically acceptable salts thereof, a preparation method thereof and use thereof as a T-type calcium channel antagonist, based on the fact that 1,3-dioxoisoindole derivatives of Formula (1) show selective antagonistic activity against T-type calcium channel, thus being effective in treating brain diseases, cardiac diseases and neurogenic pains: wherein R1 is a phenyl or a benzyl group, optionally substituted with a moiety selected from the group consisting of a halogen atom, a C1-C6 alkoxy, a C1-C6 alkyl, and a cyano group; R2 is a heterocyclic group selected from the group consisting of piperidinyl, pyrrolidinyl, morpholinyl, and piperazinyl groups, wherein the heterocyclic group is optionally substituted with a C1-C6 alkyl group; and n is 1 or 2.

Abstract: A method and apparatus are provided for detecting a device change in a wireless network environment. The method includes receiving change information of a change device transmitted through a first channel, which is different from a second channel used by a plurality of devices, which form a wireless network, to transmit or receive data; storing the received change information; and reconfiguring the wireless network using the stored change information.

Abstract: The invention relates to an annular nuclear fuel rod. The annular fuel rod includes an outer tube; an inner tube having a diameter smaller than that of the outer tube, and arranged coaxially with the outer tube; a plurality of inner annular pellets loaded between the outer and inner tubes, adjacent to the inner tube; a plurality of outer annular pellets loaded between the outer and inner tubes, adjacent to the outer tube. Preferably, the inner annular pellets are spaced from the outer annular pellets with an intermediate gap. The annular nuclear fuel rod can remove unbalanced heat flux between inner and outer tubes, and furthermore, control the heat flux between the inner and outer tubes.

Abstract: Disclosed herein is a method of designing a query classificaton component for a multilevel DataBase Management System (DBMS). The method includes determining whether a plan tree, which is used for query processing, is input; if the plan tree is input, designing the query classification component to output locations for respective tables, at which data must be referenced in conjunction with the plan tree, and corresponding predicates; and transferring the locations for respective tables and the corresponding predicates to respective storage managers and causing each of the storage managers to process corresponding data.

Abstract: An apparatus and method for implementing SDMA in a multi-user multi-antenna system are provided, in which SDMA users are selected from among total users according to channel state information of the total users, and the number of transmission streams to be allocated to each of the SDMA users is determined by a tree search method.

Abstract: A method of operating a wireless universal serial bus (USB) apparatus and the wireless USB apparatus using the same. The method including: receiving operation state information from a neighboring wireless USB apparatus in a beacon period (BP); the wireless USB apparatus, which is operating as a host in a first cluster by using the operation state information, identifying a distributed reservation protocol (DRP) corresponding to a second cluster; and the wireless USB apparatus, which is operating as the host in the first cluster, participating in the second cluster as a device by transmitting and receiving data in the DRP corresponding to the second cluster. Accordingly, the wireless USB apparatus which operates as a host may participate in a neighboring WUSB cluster as a device.

Abstract: A multiview autostereoscopic display includes: a backlight; a first polarized panel transmitting light having a first polarization; a first polarization switch changing the polarization of incident light; a first anisotropic device array including anisotropic devices sequentially and repeatedly arranged in a horizontal direction, such that light transmitted from neighboring anisotropic devices has perpendicular polarizations; a lenticular lens array having lenticular lens devices, arranged horizontally, which separate incident light into different directions; a second polarized panel transmitting light having a second polarization; a second anisotropic device array having anisotropic devices alternately horizontally arranged, such that the anisotropic devices transmit light having perpendicular polarizations; a second polarized switch changing the polarization of light from the lenticular lens array; a third anisotropic device array having anisotropic devices, alternately vertically arranged, such that the an

Abstract: A backlight unit capable of reducing or effectively preventing a hot spot phenomenon includes a plurality of light sources generating lights, a light guide plate including a portion on which the lights generated from the light sources are incident and converting the lights incident on the portion into a surface-shaped lights and a light path converter converting a traveling direction of the lights incident on the portion of the light guide plate in an area where the lights emitted from the light sources diodes, overlap each other.

Abstract: A small ultra wideband (UWB) antenna designed to have a unidirectional radiation pattern is disclosed. The UWB antenna includes a substrate; a power feeding part, provided on an upper surface of the substrate, for receiving a supply of an external electromagnetic energy; a dipole radiator excited by the electromagnetic energy fed through the power feeding part and radiating electromagnetic waves in one and the other directions of the substrate; and an active loop radiator excited by the electromagnetic energy fed through the power feeding part, respectively enhancing and canceling the electromagnetic fields produced in one or the other directions of the substrate by the dipole radiator.

Abstract: A method of reproducing an audio file includes: reading an extension information of the audio file, the extension information of the audio file being separated but associated with audio data of the audio file; establishing a reproducing mode for reproducing the audio file based on the extension information; obtaining at least a part of the audio file under the established reproducing mode; and determining whether the audio file is reproducible under the established reproducing mode by checking whether the part of the audio file constructs a specific format stream corresponding to the established reproducing mode.

Abstract: Provided is a stack package using an anisotropic conductive film (ACF) for reducing thermal stresses exerted on chip scale packages (CSPs) during the initial manufacture of stack packages from a plurality of CSPs and for facilitating the repair and/or rework of stack packages incorporating CSPs while reducing the likelihood of damage to the CSPs. In the stack package including a plurality of CSPs stacked using an ACF, each CSP will typically include a circuit board, a semiconductor chip mounted on and electrically connected to the circuit board, and solder balls or other conductive structures arranged the semiconductor chip on the peripheral regions of the circuit board. Also provided are methods for the initial production of such stack packages and supplemental methods for the repair and rework of such stack packages.

Abstract: The present invention relates to a pipeline examination apparatus for Direct Current Voltage Gradient (DCVG) and Closed Interval Potential Survey (CIPS) methods. The pipeline examination apparatus of the present invention detects and analyzes at least one electrode signal while supplying an anticorrosive current to a buried pipeline by switching on and off the anticorrosive current at predetermined intervals. The pipeline examination apparatus includes a signal detection unit and a measurement unit. The signal detection unit detects the electrode signal including a DCVG electrode signal and/or a CIPS electrode signal. The measurement unit receives the electrode signal from the signal detection unit and analyzes the electrode signal. The measurement unit includes a measurement method selection unit, a control unit, a storage unit, an analysis unit and a display unit.

Abstract: An electrophoretic display and a method of manufacturing the electrophoretic display are provided. The electrophoretic display includes an lower electrode formed on an under layer, an lower electrode protection layer formed on the lower electrode, an insulating template formed on the lower electrode protection layer and having a plurality of holes of smaller size than the wavelength of visible rays region, a dielectric fluid filling the holes and having a color, a plurality of charged particles suspended in the dielectric fluid filling each of the plurality of holes having a color different from the color of the dielectric fluid, and an upper electrode formed on the insulating template in sequential order. Accordingly, a problem of agglomeration of the charged particles can be solved by the insulating template having holes of smaller size than the wavelength of visible rays region, and thus a reliable electrophoretic display emitting light of one color or natural colors is achieved.

Abstract: A method of fabricating an orientation film for a liquid crystal display device is provided. An orientation film is formed on a substrate. An ion-beam irradiation apparatus having an ion generation element is provided. The substrate is placed on a stage in a vacuum chamber. The angle of the substrate is controlled such that the orientation film has a predetermined angle with respect to an ion beam of the ion-beam irradiation apparatus. An ion beam from the ion-beam irradiation apparatus irradiates a surface of the orientation film. The ion beam has an energy intensity of about 300 eV to about 800 eV and a predetermined dose.