Abstract: An apparatus and method for efficiently operating a fast feedback channel in a wireless communication system are provided. A method for operating a feedback channel in a Base Station (BS) of a wireless communication system includes identifying feedback information types of one or more feedback channels intended to be deallocated among a plurality of existing allocated feedback channels for a Mobile Station (MS), activating a bit corresponding to the identified feedback information type in a ‘deallocation bitmap’ field within a DownLink (DL) control signal, and transmitting the DL control signal to the MS. Among the feedback information types of the plurality of existing allocated feedback channels, the feedback information type having the smallest value corresponds to the highest priority bit among bits within the ‘deallocation bitmap’ field.

Abstract: A method and an apparatus for transmitting/receiving a reference signal in a mobile communication system are provided. The method of a base station includes determining a cell identifier of a plurality of segments included in the base station, determining a resource allocated to the plurality of segments using the cell identifier in a preconfigured Location Based Service (LBS) zone, and transmitting a reference location beacon signal via the determined resource. The plurality of segments is allocated the same resource, and transmits the same signal. Therefore, accuracy of location estimation may be guaranteed.

Abstract: A method and apparatus for transmitting/receiving a reference signal for positioning in a wireless communication system are provided. In the method, a BS locates a PA preamble in a second frame among frames constituting each of multiple superframes, locates a SA preamble in first symbols of first and third frames among the frames constituting each of the multiple superframes, determines multiple consecutive first superframes belonging to an LBS zone from among the multiple superframes, includes a reference signal for LBS in a first symbol of a first subframe of a last frame among frames constituting each of the first superframes, includes data in a first symbol of a first subframe of a last frame among frames constituting each of second superframes that correspond to the multiple superframes excluding the first superframes when the data is to be transmitted, and communicates with an MS by using the first and second superframes.

Abstract: A spangle-free, hot-dip galvanized steel sheet, and a method and device for manufacturing the same. The hot-dip galvanized steel sheet is characterized in that a solidified zinc crystal of hot-dip galvanized layer has an average crystalline texture particle diameter of 10 to 88 ?m and there is no solidification traces of dendrites upon observing under a microscope at a magnification of 100×. The method comprises dipping a steel sheet in a bath of a zinc-coating solution containing 0.13 to 0.3% by weight of aluminum; air-wiping the steel sheet to remove an excess of the coating solution; spraying water or an aqueous solution on the air-wiped steel sheet, using a steel sheet temperature in the range of a hot-dip galvanization temperature to 419 ° C. as a spray initiation temperature and using a steel sheet temperature in the range of 417 ° C. to 415 ° C.

Abstract: A method of implementing the location includes determining the base stations participating in the location and parameters required in the location via the signaling interaction between a mobile station and a serving base station. Afterwards, the mobile station and the base stations participating in the location perform the location measuring according to the determined parameters required in the location; at last, performing the location calculation according to the measuring result of location measuring.

Abstract: The present invention relates to a fuse for a semiconductor device, and discloses the technique capable of preventing fuse damage, which might occur during a fuse blowing step, with reducing area of the fuse occupying the semiconductor device. The present invention includes a common source region, wherein a plurality of fuses are radially arranged about the common source region, and a fuse box wall is formed outside the fuses.

Abstract: A mobile device has a touch sensitive surface such as a touch screen. In a touch-based zooming control method, the mobile device displays target data of a selected content on a screen. While the target data is displayed, the mobile device activates a zoom mode in response to a given gesture or input event. Then, the mobile device receives a touch-based gesture input which starts from a specific point on the target data, and executes a zooming function such as a zoom-in and a zoom-out in response to the received gesture input. Particularly, a continuous zooming control in various zooming rates is possible based on a single touch gesture. A toggling-based zooming control is also possible. A bitmap image is used for a rapid real-time display of the target data.

Abstract: A phase change memory device includes a silicon substrate having a phase change cell region. A plurality of phase change cell are formed in the phase change region of the silicon substrate. A contact comprising a first contact and a second contact is formed on each of the phase change cells. A plurality of bit lines are electrically connected to the contacts. A contact plug is formed on the silicon substrate in a region outside of the phase change cell region, and a word line is formed over the silicon substrate and is connected to the contact plug.

Abstract: A layout of a semiconductor device is disclosed, which forms one transistor in one active region to reduce the number of occurrences of a bridge encountered between neighboring layers, thereby improving characteristics of the semiconductor device. Specifically, the landing plug connected to the bit line contact is reduced in size, so that a process margin of word lines is increased to increase a channel length, thereby reducing the number of occurrences of a bridge encountered between the landing plug and the word line.

Abstract: The present invention relates to a highly resilient (lactide/glycolide)/?-caprolactone copolymer with good shape recovery force, flexibility, and biodegradability and a use of such copolymer for the repair of articular cartilage defects. The highly resilient (lactide/glycolide)/?-caprolactone copolymer of the present invention is capable of rapidly and efficiently inducing cartilage regeneration, can be easily deformed and almost completely restored to its original form after deformation. Further, the highly resilient copolymer of the present invention can be safely and conveniently transplanted to a patient by using an arthroscope without causing economic, physical, and mental burden. Thus, the highly resilient copolymer of the present invention can be effectively used as a polymer scaffold for the repair of cartilage defects.

Abstract: A phase change memory device includes a semiconductor substrate having an active region. An insulation layer is formed on the semiconductor substrate grooves and holes are defined in the insulation layer, with the holes being defined under the grooves to expose portions of the active region. Cell switching are elements formed in the holes and lower portions of the grooves and a phase change layer formed in upper portions of the grooves over the cell switching elements and on portions of the insulation layer adjacent to the grooves such that the phase change layer has a pore structure. Top electrodes are formed on the phase change layer.

Abstract: The present invention relates to a cell aggregate-hydrogel-polymer scaffold complex useful for cartilage regeneration which has a structure in which cell aggregates of differentiated chondrocytes are evenly dispersed in a hydrogel matrix, and the resulting hydrogel matrix is immobilized onto the surface of a polymer scaffold while filling up the pores thereof. Since the cell aggregate-hydrogel-polymer scaffold complex according to the present invention can efficiently induce the regeneration of cartilage tissue similar to natural cartilage and retain high mechanical strength, flexibility, and uniform morphology during the cartilage regeneration, it can be effectively used as a cartilage therapeutic agent for the repair of cartilage defects and injuries.

Abstract: An apparatus and method for operating a fast feedback channel in a broadband wireless communication system are provided. The method includes generating and transmitting a feedback signal through a fast feedback channel of a first mode, determining to switch a mode of the fast feedback channel from the first mode to a second mode, transmitting a signal for requesting the mode switching of the fast feedback channel through the fast feedback channel, and generating and transmitting a feedback signal through a fast feedback channel of the second mode.

Abstract: An apparatus and method for transmitting and receiving information through a fast feedback channel in a broadband wireless communications system are provided. The apparatus includes a generator for generating a quasi-orthogonal signal stream corresponding to a codeword to be fed back, a plurality of mappers for mapping the quasi-orthogonal signal stream to a plurality of bundles in the fast feedback channel by using different mapping patterns, and a transmitter for transmitting the quasi-orthogonal signal stream mapped to the plurality of bundles.

Abstract: The present invention relates to a method for immobilization of a biologically active polypeptide using maltose binding protein (MBP) and a biologically active solid substrate on which a biologically active polypeptide is immobilized by the above method. More particularly, the present invention relates to a method for immobilization of a biologically active polypeptide comprising the following steps; 1) preparing a fusion protein by linking a biologically active polypeptide to carboxyl terminal of maltose binding protein (MBP); and 2) immobilizing the fusion protein on the hydrophobic surface by physical adsorption of amino terminal containing hydrophobic domain exposed on the surface of maltose binding protein on the hydrophobic surface of a solid substrate, and a biologically active solid substrate on which a biologically active polypeptide is immobilized by the said method.

Abstract: A phase change memory device includes a silicon substrate having a phase change cell region. A plurality of phase change cell are formed in the phase change region of the silicon substrate. A contact comprising a first contact and a second contact is formed on each of the phase change cells. A plurality of bit lines are electrically connected to the contacts. A contact plug is formed on the silicon substrate in a region outside of the phase change cell region, and a word line is formed over the silicon substrate and is connected to the contact plug.

Abstract: Embodiments of the present invention may provide a method of preparing biodegradable polyester polymer materials both in a filament type and a sheet type using a compressed gas. The method of the present invention comprises the following steps: 1) preparing biodegradable polyester polymers through a solution-state polymerization process of a cyclic monomer using a compressed gas as a reaction solvent in the presence of a catalyst; 2) performing a flash-spinning process of the biodegradable polyester polymers prepared above to form a polymer material in a filament type; and 3) performing a calendering process of the polymer material in a filament type prepared above to form a polymer material in a point-bonded sheet type.

Abstract: Disclosed herein are a tube-type porous scaffold having a double-layered structure for use as an artificial vascular graft and a preparation method thereof.

Abstract: A spangle-free, hot-dip galvanized steel sheet, and a method and device for manufacturing the same. The hot-dip galvanized steel sheet is characterized in that a solidified zinc crystal of hot-dip galvanized layer has an average crystalline texture particle diameter of 10 to 88 ?m and there is no solidification traces of dendrites upon observing under a microscope at a magnification of 100×. The method comprises dipping a steel sheet in a bath of a zinc-coating solution containing 0.13 to 0.3% by weight of aluminum; air-wiping the steel sheet to remove an excess of the coating solution; spraying water or an aqueous solution on the air-wiped steel sheet, using a steel sheet temperature in the range of a hot-dip galvanization temperature to 419° C. as a spray initiation temperature and using a steel sheet temperature in the range of 417° C. to 415° C.

Abstract: A webpage presentation method for a mobile phone having a limited screen size is provided for efficiently presenting webpages. A webpage presentation of the present invention includes presenting a preset number of webpages including a current and previously visited webpages on a display screen in response to a zoom-out command input during a web browsing session, thereby facilitating search for interested information and improving usability of web browsing function of a handheld device.