Abstract: More selective and efficient Ni hydrotreating catalysts are those which contain more than about 60% of the Ni content on the peripheral surface of porous supports, such as extruded alumina, which may be obtained by spraying an atomized solution of a Ni compound onto the support and drying it at a temperature in the range of from 200 to 600° C. When used, for example, to remove acetylenic compounds from butadiene streams, higher recovery of the desired butadiene with lower acetylenic content and low heavy polymer deposition is obtained than was possible with prior catalysts.

Abstract: A plasma etching method and apparatus. In the plasma etching apparatus, pluralities of RF power supplies are respectively connected to upper and lower electrode via relevant matching networks to enable generation of various ion densities and ion energies of plasma by individually changing RF powers applied to the upper and lower electrodes through control of the RF power supplies, so that the plasma etching apparatus can perform all processes which includes a process requiring a low ion density and a low ion energy, a process requiring the low ion density and a high ion energy, a process requiring a high ion density and the low ion energy, and a process requiring the high ion density and the high ion energy, thereby realizing various plasma etching processes.

Abstract: An apparatus and method for performing a handover in a broadband wireless communication system is provided. In the broadband wireless communication system, a base station includes: a grouping unit for grouping mobile stations by using information on a movement path of each mobile station and information on a received signal strength of a neighboring base station, thereby constituting at least one group; a controller for modifying hystereses of remaining mobile stations among the mobile stations belonging to the same group, if a predetermined number of mobile stations perform handovers; and a transmitter for transmitting a message including modified hysteresis information to the remaining mobile stations belonging to the group.

Abstract: An apparatus and method for performing sequential scheduling in a multiple-input, multiple-output (MIMO) system is provided. The method includes the steps of: selecting a user which reports the greatest partial feedback information among a plurality of pieces of partial feedback information of all users in an initialization operation, and requesting channel feedback information to the selected user; and broadcasting the channel feedback information of the selected user to remaining unselected users upon receiving the channel feedback information from the selected user. Accordingly, a maximum capacity can be obtained by using only selective channel feedback information without having to feed back channel state information of all users.

Abstract: Provided is a method and apparatus for controlling a user interface (UI) of an electronic device by using a specific region of a virtual plane. In the method, the virtual plane is initialized according to spatial coordinates of two or more images detected by using locations of the images displayed in an image display unit of a first image capture device and an image display unit of a second image capture device. Furthermore, the location of a marker is determined and is indicated by a specific image on the virtual plane. Furthermore, a screen pointer corresponding to the marker is displayed at a position where the marker is located in an image display unit corresponding to the virtual plane. Furthermore, a menu of the electronic device is selected which is pointed to by the screen pointer while moving the marker. Accordingly, a user can conveniently control the UI of the electronic device by performing a simple operation.

Abstract: A plasma display panel includes a pair of substrates having a first substrate where an image is displayed and a second substrate. A barrier rib structure separates the substrates and has discharge cells within the barrier rib structure. Discharge electrode pairs are in the barrier rib structure, at least one of the discharge electrode pairs surrounding a discharge cell. A ferroelectric layer is on surfaces of the barrier rib structure forming the discharge cells. A phosphor layer is in each of the discharge cells.

Abstract: A method for fabricating a supermirror for forming a neutron guide. In the method, a neutron supermirror, which is widely used in the formation of thin films in cold neutron guides and the spectrometer field, is fabricated with nickel thin films and titanium thin films, having varying thickness, using a combination of monochromator structures in which nickel thin films and titanium thin films, having the same thickness, are stacked in the form of periodic structures. According to the method, a combination of monochromator structures having a variety of different thicknesses is formed, such that the amount of the overlap of peaks due to the monochromator structures can be adjusted to increase reflectivity, and some of the monochromator structures can be removed during the fabrication of the supermirror to make it easy to extract monochromatic beams, such that it is easy to fabricate a transmission monochromator, rather than a reflection monochromator.

Abstract: A phase change memory device is manufactured by forming a first insulation layer on a semiconductor substrate having a plurality of phase change cell forming regions; defining a groove by etching the first insulation layer; forming a lower electrode in the groove; recessing the lower electrode; forming a second insulation layer on the recessed lower electrode to fill the groove; etching the second insulation layer and to define a hole for exposing the lower electrode; forming a lower electrode contact in the hole; and forming a phase change layer and an upper electrode on the lower electrode contact. By manufacturing the phase change memory device in this manner, the interface between the lower electrode contact and a phase change layer can be defined in a stable manner, resulting in the uniformity of a programming circuit.

Abstract: A method and system for WiBro network interworking in a wireless terminal. The method includes: setting up, by a relay station for connecting the WLAN terminal with the WiBro network, a connection through an initial process with the WiBro network; performing, by an access router, Internet connection authentication on a user of the WLAN terminal in response to a request for Internet connection from the WLAN terminal; allocating, by the access router, an IP address in response to a request for IP address allocation from the WLAN terminal, and then allocating, by a WiBro radio access station, a unique Connection IDentification (CID) corresponding to a QoS level of the terminal user in response to a request from the relay station; and mapping, by the relay station, the allocated unique CID to the IP address of the WLAN terminal and providing Internet service.

Abstract: A rechargeable lithium battery including a positive electrode including a positive active material, a negative electrode including a negative active material, and a non-aqueous electrolyte including a non-aqueous organic solvent and a lithium salt. The positive electrode has an active-mass density of about 3.7 to 4.1 g/cc, and the non-aqueous electrolyte includes a nitrile-based compound additive, a non-aqueous organic solvent, and a lithium salt.

Abstract: More selective and efficient Ni hydrotreating catalysts are those which contain more than about 60% of the Ni content on the peripheral surface of porous supports, such as extruded alumina, which may be obtained by spraying an atomized solution of a Ni compound onto the support and drying it at a temperature in the range of from 200 to 600° C. When used, for example, to remove acetylenic compounds from butadiene streams, higher recovery of the desired butadiene with lower acetylenic content and low heavy polymer deposition is obtained than was possible with prior catalysts.

Abstract: A liquid crystal display includes a light guide plate guiding incident light, a first point light source assembly including first point light source elements providing the light to the light guide plate and a first support substrate having the first point light source elements, the first point light source assembly being disposed at one side of the light guide plate, a second point light source assembly including second point light source elements providing the light to the light guide plate and a second support substrate having the second point light source elements, the second point light source assembly being disposed at the other side of the light guide plate, a liquid crystal panel assembly disposed on the light guide plate and displaying image information, and a lower container accommodating the light guide plate, first and second point light source assemblies, and liquid crystal panel assembly, wherein the first support substrate is larger in area than the second support substrate.

Abstract: Provided is a method of preparing hydrogen using an amino acid. The method of preparing hydrogen using an amino acid includes: (a) mixing a metal borohydride and a zwitterionic material; (b) adding a solvent thereto to dissolve the mixture; and (c) generating hydrogen from the solution. The provided method of preparing hydrogen using an amino acid can reduce manufacturing costs, reduce a heating value of hydrogen during hydrolysis, increase a hydrogen generation rate, and allow a hydrogen generating apparatus to be small in size.

Abstract: Provided is a dynamic rate-limiting method and apparatus used in a switch for switching packets from input ports to output ports, the method including: (a) adding traffic bandwidth values set in advance in active subscribers that are using the switch from among subscribers connected to the switch; (b) comparing the added value with a range between a maximum bandwidth and a minimum bandwidth that are set in the switch; and (c) according to a result of comparing, when the added values is smaller than the minimum bandwidth or larger than the maximum bandwidth set in the switch, increasing or decreasing the traffic bandwidths of the active subscribers set in advance so that the added value is within the range between the maximum bandwidth and minimum bandwidth. Accordingly, it is possible to automatically control the traffic bandwidths of subscribers that are currently using the switch.

Abstract: An intelligent vehicle meter includes an associative processing unit and a signal processing unit connecting to various modules to process related signals. Through a measurement module and an accelerometer module physiological conditions of an exerciser and exercise intensity can be obtained to generate a control signal to be sent to a control module. Hence a corresponding control measure can be made immediately by the control module according to exerciser's conditions to actively change use intensity of the exercise equipment to enable the exerciser to do exercise under the optimal condition to protect the health and safety of the exerciser.

Abstract: A liquid crystal display panel includes a first substrate, a second substrate facing the first substrate, and a liquid crystal layer interposed therebetween. The second substrate includes gate lines, data lines crossing the gate lines to define sub-pixel regions, a thin film transistor connected to a gate line and a data line, an organic passivation layer, a pixel electrode connected to the thin film transistor, a repair portion where the pixel electrode overlaps with a previous gate line, and a repair hole formed in the repair portion to penetrate the organic passivation layer. The pixel electrode is arranged in the repair hole. A method for repairing a defective pixel includes connecting a gate extending portion of the previous gate line to the pixel electrode in the repair portion using a laser, and cutting the defective pixel's drain electrode connected to the pixel electrode.

Abstract: A turbofan integrally formed with a shroud and a method of manufacturing the same. The turbofan includes a rotating plate rotated by a driving motor, a plurality of blades having first ends connected to an outer peripheral portion of a front surface of the rotating plate while being arranged in a radial pattern, a shroud having an annular shape and being integrally formed with second ends of the blades, in which the shroud has an inner diameter equal to or larger than a diameter of the rotating plate, and an auxiliary rotating plate having a diameter larger than the diameter of the rotating plate and being fixed to the rotating plate. Since the inner diameter of the shroud is equal to or larger than the rotating plate, the turbofan is integrally formed with the shroud by a mold.

Abstract: An LGA connector (100) includes a housing (2) and a number of contacts (1) received in the housing. Each contact has a base plate (10), a connecting portion (9) extending from a side of the base plate and a resilient contacting portion (93) projecting from the connecting portion. An elastic plate (11) extends from the base plate and has a spring arm (120) disposed at one side thereof. A curved receiving space (130) is formed between the spring arm and the elastic plate. The contact has a board terminal (12) extending from a lower end of the elastic plate for connecting to a printed circuit board.

Abstract: Disclosed is a three-dimensional image forming screen in which, on the basis of a screen substrate having functions of scattering and transmission, polarizing lines for separating and transmitting left and right images from projectors are formed at one surface of the screen substrate and curved surface lines are formed at the other surface of the screen substrate to have the same direction and size as those of the polarizing lines. With this configuration, scattering and transmission of light, separation, transmission, and combination of left and right images, and expansion of the separated images are performed by the single screen, so as to achieve a wide viewing angle of the screen and to allow a viewer to watch a three-dimensional image having a high vividness without assistance of polarizing glasses. When being coupled with a rotating rod that is rotated by a motor, the three-dimensional image forming screen takes the form of a roll-up screen.

Abstract: A phase change memory device includes a semiconductor substrate having a plurality of phase change cell regions; a lower electrode formed in each of the phase change cell regions on the semiconductor substrate; an insulation layer formed on the semiconductor substrate to cover the lower electrode and defined with a contact hole which exposes the lower electrode; a heater formed in the contact hole; a conductive pattern formed on the insulation layer to be spaced apart from the heater; a phase change layer formed on the heater, the conductive pattern, and portions of the insulation layer between the heater and the conductive pattern; and an upper electrode formed on the phase change layer. This phase change memory device allows the phase change layer to be stably formed and prevents the phase change layer from lifting.