Abstract: A method for preparing polyolefin from alpha-olefin with high productivity using an internal circulating fluidized bed polymerization reactor is disclosed. The method for gas-phase polymerization of alpha-olefin comprising the steps of: supplying circulation gas including one or more alpha-olefins and inert gas into a polymerization reactor; polymerizing the alpha-olefin to polyolefin in two separated polymerization areas in the polymerization reactor; and discharging produced polyolefin from the polymerization reactor.

Abstract: A heating cabinet is provided capable of keeping foods warm by use of solar energy. The heating cabinet includes a body member, which has an outer surface formed using transparent material and is configured to form an accommodation space therein, in which an inside of a part surrounding the accommodation space to be filled with heat retaining fluid heated by solar energy such that heat received from solar energy is stored in the heat retaining fluid to keep contents accommodated in the accommodation space warm; and a detachable member which is formed at one side of the body member to allow the body member to be detachable to the window. Foods contained in the heating cabinet are kept warm. When taking foods contained in the heating cabinet, a user takes foods by separating the heating cabinet from the window. Alternatively, a user separates the heating cabinet from the window and takes foods while carrying the separated heating cabinet.

Abstract: An apparatus, system, and method for providing augmented reality (AR) information of a concealed object are disclosed. The method for providing AR information of a concealed object by a terminal connectable to a server via a wired and/or wireless communication network may include acquiring an image of a real environment; defining a reference object included in the acquired image; obtaining image capturing position information about a position of the image and reference object recognition information of the defined reference object; transmitting the obtained image capturing position information and the reference object recognition information to the server; receiving information about concealed objects from the server, the concealed objects being disposed behind the reference object along or about a direction from the image capturing position to the reference object; and outputting the received information about concealed objects.

Abstract: A method for preparing polyolefin from alpha-olefin with high productivity using an internal circulating fluidized bed polymerization reactor is disclosed. The method for gas-phase polymerization of alpha-olefin comprising the steps of: supplying circulation gas including one or more alpha-olefins and inert gas into a polymerization reactor; polymerizing the alpha-olefin to polyolefin in two separated polymerization areas in the polymerization reactor; and discharging produced polyolefin from the polymerization reactor.

Abstract: A method for preparing polyolefin from alpha-olefin with high productivity using an internal circulating fluidized bed polymerization reactor is disclosed. The method for gas-phase polymerization of alpha-olefin comprising the steps of: supplying circulation gas including one or more alpha-olefins and inert gas into a polymerization reactor; polymerizing the alpha-olefin to polyolefin in two separated polymerization areas in the polymerization reactor; and discharging produced polyolefin from the polymerization reactor.

Abstract: A method for preparing polyolefin from alpha-olefin with high productivity using an internal circulating fluidized bed polymerization reactor is disclosed. The method for gas-phase polymerization of alpha-olefin comprising the steps of: supplying circulation gas including one or more alpha-olefins and inert gas into a polymerization reactor; polymerizing the alpha-olefin to polyolefin in two separated polymerization areas in the polymerization reactor; and discharging produced polyolefin from the polymerization reactor.

Abstract: A portable terminal and method for adjusting transmitted sound output to a wireless headset. A portable terminal includes a wireless connection setting unit to establish a connection with a wireless headset and a loopback control unit. The loopback control unit may transmit a test signal within a voice band to the connected wireless headset, receive a sound signal inputted through a microphone of the portable terminal in response to the transmitted test signal, analyze the received sound signal and adjust sound output to be transmitted to the wireless headset. A method for adjusting sound output includes establishing a connection with a wireless headset, transmitting a test signal within a voice band, receiving a sound signal inputted through a microphone of the portable terminal in response to the transmitted test signal, analyzing the sound signal, and adjusting sound output to be transmitted to the wireless headset according to the analysis result.

Abstract: An image sensor and a method for manufacturing the same that includes readout circuitry, an electrical junction region, an interconnection, an image sensing device, and an infrared filter. The readout circuitry and the electrical junction region are formed in a first substrate and are electrically connected to each other. The interconnection is formed over the electrical junction region and the image sensing device is formed over the interconnection. The infrared filter is formed on the image sensing device and includes a plurality of thin films.

Abstract: A laterally double-diffused metal oxide semiconductor (LDMOS) and a method for fabrication thereof includes a well region formed in a semiconductor substrate having an active region defined by device isolation layers, a body region formed over the well region, a drain region spaced from the body region at a constant interval and formed above the well region, a source region and a source contact region formed in the body region in structural communication with the source region, a drift region having a trench formed therein formed in the well region between the body region and the drain region, and a gate formed over the semiconductor substrate which partially overlaps the source region and the drift region.

Abstract: A method for fabricating a light emitting diode lamp in a simplified procedure, and a high-output LED, that has a simple structure and can exhibit improvement in heat release property, fabricated by using the method which includes the steps of coating an insulating layer on a substrate and etching the insulating layer using a mask pack, coating a conductive metal layer on the insulating layer, forming an electrode pattern and a recess, on which an LED chip is mounted, on the metal layer using the mask pack, attaching the LED chip to the top of the recess, connecting a wire to the electrode pattern, and mounting a reflector having a vertical opening hole around the LED chip on the substrate to reflect light emitted from the LED chip in all directions, and molding the top of the substrate from a transparent resin to cover the LED chip, the electrode pattern and the reflector.

Abstract: An improvement to a fishing pole is disclosed, the improvement including a multi-flex segment that separates a resilient rod of the fishing pole into lower and upper portions. Both the upper and lower portions are interconnected through the multi-flex segment. A rigid retractable sleeve is positionable in either a disengaged position away from the multi-flex segment or in an engaged position over the multi-flex segment. In the disengaged position, the sleeve is positioned so that it covers part of the lower section of the rod, but none of the multi-flex segment, thereby allowing the multi-flex segment to flex more freely during casting, for example. In its engaged position, however, the sleeve is positioned to cover the multi-flex segment completely, interconnecting in a rigid fashion the upper portion of the rod to the lower portion of the rod.

Abstract: A weight interchangeable golf putter is provided having a T shaped head. The head has a main body constituting the main weight and a striking face. From the trailing edge of the top surface a center tail extends rearward to form the T shape of putter plane. At the sides of the tail there are formed end fins with their free ends opened rearward to better guide the putter head through the air during the stroking address. The top of the back weight extends to near midway of the length of the tail and merges with the bottom of the tail. The back weight has a bottom surface in flush with the corresponding bottom of the main body and terminates with an end wall tapered gradually toward the main body to avoid hitting the ground when strokes are made. Three cylindrical bores are formed facing the same backward direction in the common 90-degree angle from the rear wall to receive different metal screws.

Abstract: Embodiments of methods and apparatus for compensating writing power in an optical disc device can compensate selected (e.g., OPC) writing power. When a writing operation is temporarily suspended (e.g., buffer under-run) during the writing operation, writing power is compensated in real time on the basis of the ? value detected from read RF signals for most recently recorded data and comparisons to selected writing power (e.g., optimum ? value stored therein through OPC).

Abstract: An apparatus for manufacturing a laminated steel sheet by treating surfaces of a base steel sheet so that the adhesive strength between a base steel sheet and lamination sheets is increased. The apparatus comprises an uncoiler for unwinding a coiled base steel sheet followed by a cleaner for cleaning the surfaces of the base steel sheet. The cleaner comprises an acid pickling unit for pickling the surfaces of a hot rolled steel sheet with acid pickling water when the base steel sheet is the hot rolled steel sheet, an alkali cleaning unit for cleaning the surfaces of a galvanized steel sheet with alkali cleaning water when the base steel sheet is the galvanized steel sheet, and a rinsing unit. The acid pickling unit and the alkali cleaning unit are selectively used on the basis of kinds of the base steel sheet supplied from the uncoiler.

Abstract: An improvement to a fishing pole is disclosed, the improvement including a flexible segment that separates a resilient rod of the fishing pole into lower and upper portions. Both the upper and lower portions are interconnected through the flexible segment. A rigid retractable sleeve is positionable in either a disengaged position away from the flexible segment or in an engaged position over the flexible segment. In the disengaged position, the sleeve is positioned so that it covers part of the lower section of the rod, but none of the flexible segment, thereby allowing the flexible segment to flex more freely during casting, for example. In its engaged position, however, the sleeve is positioned to cover the flexible segment completely, interconnecting in a rigid fashion the upper portion of the rod to the lower portion of the rod. As Such, the upper portion pivotably fixed with respect to the lower portion, and is thereby made more characteristic of a conventional fishing pole.

Abstract: A ball wipe container is disclosed that comprises a cylindrical housing body that holds a plurality of ball wipes. A belt clip is formed on one side of the housing. A top opening is formed on a top surface of the housing body that allows access to the ball wipes therein. A lid is attached to the housing body in such a way as to, in a closed position, cover the top opening. Preferably, the lid further includes a ball marker post so that the lid may also be used as a ball marker. In such an embodiment, the housing body further includes a lid retainer point formed through the housing body adjacent to the top opening that receives and frictionally retains the ball marker post of the lid.

Abstract: The present invention relates to methods and microorganisms for producing L-threonine. In particular, the present invention relates to the production of L-threonine using microorganisms, and Escherichia coli strains in particular, which require L-methionine for growth and are L-isoleucine-leaky, are resistant to ?-methylserine, diaminosuccinic acid, L-glutamic acid, L-threonine, medium containing 60% of L-threonine fermentation mother liquid, azetidine and dehydroproline, and which are susceptible to fluoropyruvate.

Abstract: Disclosed are a functional high-strength adhesive sheet using a nonwoven fabric, which is widely applied, a system and a method for manufacturing the adhesive sheet, and a functional high-strength steel plate attached with the adhesive sheet. The functional high-strength adhesive sheet comprises a polyethylene layer, a nonwoven fabric in which the polyethylene is pressed to its one surface, and a functional polyethylene layer pressed to the other surface of the nonwoven fabric.

Abstract: Disclosed herein is an apparatus for manufacturing a laminated steel sheet which is capable of optimally treating surfaces of a base steel sheet so that the adhesive strength between a base steel sheet and lamination sheets attached to the surfaces of the base steel sheet is increased. The apparatus comprises an uncoiler for unwinding a coiled base steel sheet and supplying the uncoiled base steel sheet, followed by a cleaner for cleaning the surfaces of the base steel sheet. The cleaner comprises an acid pickling unit for pickling the surfaces of a hot rolled steel sheet with acid pickling water when the base steel sheet is the hot rolled steel sheet, an alkali cleaning unit for cleaning the surfaces of a galvanized steel sheet with alkali cleaning water when the base steel sheet is the galvanized steel sheet, and a rinsing unit for rinsing the base steel sheet with rinsing water.

Abstract: Disclosed is a high-power ballast inexpensively applicable to a fluorescent lamp of the 28-Watt class without any increase in the number of constituent elements used or any complexity in the manufacturing process. The high-power ballast includes a rectifier circuit for rectifying a low-frequency AC voltage to convert it into a direct current DC voltage, a power factor compensation circuit for compensating a power factor for the voltage outputted from the rectifier circuit, thereby boosting the level of the output voltage, the power factor compensation circuit including an active type power factor driver, and an inverter circuit for converting the DC voltage, outputted from the power factor compensation circuit, into a desired high-frequency AC voltage. The inverter circuit includes an inverter, a resonator circuit connected to the inverter, and a high-power piezoelectric transformer having an input terminal connected to the resonator circuit and an output terminal connected to the fluorescent lamp.