Abstract: The present invention relates to a precast coping lifting system, and more particularly to, a lifting system for lifting precast coping composed of a main segment and a subsegment, characterized in comprising: a hoist crane for installing a horizontal support on the top of the main segment and forming a pair of carriers on the horizontal support; a plurality of clamps for being installed on the top of the horizontal support of the hoist crane, being moved by the carrier of the hoist crane and fixing the subsegment to the top of the horizontal support; and work vehicle for being installed on the horizontal support of the hoist crane and being moved by self power along the horizontal support.

Abstract: The method for constructing precast coping for bridge of the present invention enables to manufacture a segment match-cast manufactured with the top of a pier body; to be applied to small and medium size bridges by introducing transverse tendon force to each segment through tendons after manufacturing a subsegment which is match cast to both sides of the pre-made segment; to be rapidly produced; and to retension tendons when the coping is constructed by using a plurality of segments. Further, the method for constructing precast coping for bridge of the present invention enables to manufacture the method for constructing precast coping for bridge, enabling to obtain stability towards lift by easily lifting the coping, assembled on the ground, through lifting lugs by forming lifting lugs on the top upon manufacturing segments.

Abstract: The present invention relates to a privacy securing film, and more particularly, to a privacy securing film having a louver film, wherein the louver film is manufactured through a process including the steps of i) alternately laminating and thermo-compressing transparent film layers and opaque adhesive ink layers, and ii) cutting the thermo-compressed, laminated film perpendicularly to or at a certain angle with respect to the surface thereof such that the thickness of the louver film is in a range of 2 to 30 times the thickness of the transparent film, and a hard coat layer is provided on at least one outermost face of the privacy securing film. The privacy securing film of the present invention has a simplified structure, can be fabricated through a simple manufacturing process, can significantly reduce the creation of a ghost image, and has excellent radio-shielding effects, as compared with conventional ones.

Abstract: The present invention relates to a bicycle driving apparatus, and more particularly, to a bicycle driving apparatus which enables the forward travel of the bicycle regardless of the forward rotation or reverse rotation of the pedals. The bicycle driving apparatus according to the present invention enables a bicycle to travel in the forward direction not only when a pedal rotates in the forward direction but also when the pedal rotates in the reverse direction.

Abstract: Provided is a method for purifying natural oil comprising: supplying a to-be-treated raw natural oil into a reaction tank which is provided with a layer of a particulate photocatalyst, and which is configured to allow the to-be-treated raw natural oil and oxygen and/or hydrogen to pass through the particulate photocatalyst in the layer; and then, while introducing oxygen and/or hydrogen to the inside of the layer of the particulate photocatalyst, causing the raw natural oil to circulate and to come into contact with the particulate photocatalyst, with a temperature inside the reaction tank kept at 40 to 110° C., to thereby purifying the raw natural oil.

Abstract: A levitation type supporting unit interposed between an object and an installing surface for supporting the object respective to the installing surface. The supporting unit includes lower and upper magnet parts having a lower magnet; the upper magnet part arranged at an upper part of the lower magnet part while having an interval spaced from the lower magnet part, the upper magnet part having a surface facing a surface of the lower magnet, the surfaces having equal polarities; an upper fixing cap being assembled with the upper magnet part to allow elevation; a lower fixing cap connected with the upper fixing cap and is assembled with the lower magnet part; and a fixing part including a connecting part formed on one side, connecting the upper and lower fixing caps while having an interval forming an exposed space between the upper and lower fixing caps, the fixing part preventing the upper magnet part from escaping from an upper position of the lower magnet part.

Abstract: The present invention relates to a user-participating type fitness lecture system and a fitness training method using the same. More specifically, the present invention relates to a user-participating type fitness lecture system that provides direction for correcting a user's posture or motion by comparing the user's motions with user created contents (UCC). When the contents are played back for the user to emulate, correctness of the user's motion is grasped by detecting and comparing motions in the contents with the user's motion photographed through a camera, and providing the user with posture correction information in image or voice formats.

Abstract: The present invention provides a water purification apparatus and method using a pressurized micro-filter preprocessed with a coagulation inclined-plate sedimentation reservoir and a pore-control fiber filter for improvement of a recovery rate, which removes the dissolved organic materials and the turbidity of raw water through a preprocess by a flash mixer, a two-stage coagulation reservoir and an inclined-plate sedimentation reservoir, thereby making it possible to reduce the use of coagulants, the generation of sludge by-products, the inflow load of membranes, and the facility size in comparison with the conventional standard water purification processes.

Abstract: Disclosed is a method for producing botanical oil with no by-produced trans fatty acids comprising the steps of; (1) introducing a raw oil obtained by squeezing plant seeds into a column having activated carbon filled therein from the upper part of the column; (2) allowing the oil to transfer in the column by the action of gravity toward the lower part of the column and allowing the oil to discharge from the column through a filter cloth placed adjacent to the bottom part of the activated carbon layer, wherein the filter cloth has a pore size of 13 to 45 ?m, and (3) introducing the oil discharged from the column into an activated carbon separation device comprising a filter having a pore size of 3-7 ?m, and discharging from said separation device an oil having no activated carbon microparticles by the action of a sucking force.

Abstract: Disclosed is a method for producing botanical oil with no by-produced trans fatty acids comprising the steps of; (1) introducing a raw oil obtained by squeezing plant seeds into a column having activated carbon filled therein from the upper part of the column; (2) allowing the oil to transfer in the column by the action of gravity toward the lower part of the column and allowing the oil to discharge from the column through a filter cloth placed adjacent to the bottom part of the activated carbon layer, wherein the filter cloth has a pore size of 13 to 45 ?m; and (3) introducing the oil discharged from the column into an activated carbon separation device comprising a filter having a pore size of 3-7 ?m, and discharging from said separation device an oil having no activated carbon microparticles by the action of a sucking force.

Abstract: A method of waterproof and floor construction by using thixotropic urethane and fabric sheet includes the steps of applying a primer on a base concrete surface to form a primer layer; disposing waterproof fiber sheets on the primer layer with an interval in the range of 5 to 10 mm and connecting the intervals with tapes to form a fiber sheet layer; applying thixotropic urethane having viscosity in the range of 900,000 to 1,000,000 CP onto the fiber sheet layer; and spraying super high speed hardening type resin onto the thixotropic urethane to form a coating layer.

Abstract: The present invention relates to peptide derivatives, wherein glutathione-like peptides are connected to benzoic acid derivatives, and a cosmetic composition comprising the same. The peptide derivatives according to the present invention have excellent tyrosinase inhibition and anti-oxidative activities to show excellent skin whitening effect, biocompatibility without skin stimulation, and stability during long-term storage. Therefore, they can be effectively used for a cosmetic composition for skin whitening.

Abstract: Disclosed is a method for producing botanical oil with no by-produced trans fatty acids comprising the steps of; (1) introducing a raw oil obtained by squeezing plant seeds into a column having activated carbon filled therein from the upper part of the column; (2) allowing the oil to transfer in the column by the action of gravity toward the lower part of the column and allowing the oil to discharge from the column through a filter cloth placed adjacent to the bottom part of the activated carbon layer, wherein the filter cloth has a pore size of 13 to 45 ?m; and (3) introducing the oil discharged from the column into an activated carbon separation device comprising a filter having a pore size of 3-7 ?m, and discharging from said separation device an oil having no activated carbon microparticles by the action of a sucking force.

Abstract: The present invention relates to a privacy securing film, and more particularly, to a privacy securing film having a louver film, wherein the louver film is manufactured through a process including the steps of i) alternately laminating and thermo-compressing transparent film layers and opaque adhesive ink layers, and ii) cutting the thermo-compressed, laminated film perpendicularly to or at a certain angle with respect to the surface thereof such that the thickness of the louver film is in a range of 2 to 30 times the thickness of the transparent film, and a hard coat layer is provided on at least one outermost face of the privacy securing film. The privacy securing film of the present invention has a simplified structure, can be fabricated through a simple manufacturing process, can significantly reduce the creation of a ghost image, and has excellent radio-shielding effects, as compared with conventional ones.

Abstract: Disclosed is a system, which grants identification code to sentence structures of electronic teaching material contents, includes the following units. The identification code production unit distinguishes each syllable of electronic teaching material content's selected sentence structure according to type of language, and produces peculiar identification code using the first phoneme or syllable of each syllable. The identification code grant unit grants identification code to metadata of file which stores electronic teaching material contents of above.

Abstract: A navigation apparatus includes a map data storage for storing a map data, a picture frame image storage for storing one or more images, a mode-based setting storage for storing mode-based settings required in operating the navigation apparatus in a drive guide mode, a picture frame mode or a combination mode, and a control unit for, based on the mode-based settings, providing a drive guide information using the map data in the drive guide mode, providing drive guide information by use of the map data in the drive guide mode, providing a picture frame image by using the images in the picture frame mode and providing the picture frame image and the drive guide information in the combination mode, the drive guide information being displayed over the picture frame image.

Abstract: The present invention discloses a control technology for brushless DC motor, in which firstly it is to build or import a motor running parameters' database, then detect the signals always running and the signals closely relevant to the rotor's rotating state such as the voltage and the current, and process these signals and figure out the signals about the rotor's position. Wherein these detected signals should be filtered before being used, and the best filter is the low-pass filter to cut out the high frequency components, and the cut-off frequency of the low-pass filter are determined by the motor running voltage U and PWM signal width when the motor is running at no load, finally determine if the motor is working properly by means of the motor running parameters stored in the database in advance, that is to determine if the detected value is identical with the one predicted from the database.

Abstract: The invention relates to a multicasting relay method to secure a significantly increased number of simultaneous multicasting connectors under an identical network environment (B-RAS, NAS or the like) with no addition of service device under a modem environment utilizing xDSL and PSTN and a recording medium readably by a computer recorded with programs, the method comprising the steps of: prompting a contents providing server to induce the first xDSL connector terminal to an xDSL server (B-RAS) (step 1); broadcasting a multicasting broadcasting data to the xDSL connector server in real time (step 2); discriminating whether a relevant xDSL ser§ice device supports the multicasting (step 3); broadcasting the multicasting broadcasting data to the first xDSL connector terminal in real time and prompting the xDSL service device to receive the broadcasting data at a multicasting address (step 4); and relaying multicasting data to the second xDSL connector terminal from the xDSL service device of the relevant xDSL ser

Abstract: Disclosed is a levitation type supporting unit interposed between an object to be supported and an installing surface so as to support the object respective to the installing surface.

Abstract: The present invention relates to a method and structure for reinforcing a corrugated steel plate structure. The present invention provides a method of reinforcing a corrugated steel plate structure using a liner provided on one surface of a corrugated steel plate, the reinforcing method using the liner comprising: an anchor bolt installing step of forming an anchor bolt insert hole in the surface of the corrugated steel plate and installing an anchor bolt in the anchor bolt insert hole such that the upper end of the anchor bolt protrudes from the surface of the corrugated steel plate to a predetermined height; a reinforcing bar installing step of fastening a reinforcing bar to the anchor bolt using a wire; a mold installing step of mounting a mold to the anchor bolt using a nut such that the reinforcing bar is covered with the mold; a concrete placing step of placing concrete inside the mold; and a mold removing step of removing the mold after the placed concrete has been cured.