Abstract: A method for determining a sharpness index of a pulse wave signal includes receiving a pulse wave signal; determining a first reference line starting point and a second reference line starting point on the basis of a curvature of the pulse wave signal; determining a first reference line connecting the first reference line starting point and a first reference line ending point by determining the first reference line ending point by applying an intersecting tangent method to the first reference line starting point, and determining a second reference line connecting the second reference line starting point and a second reference line ending point by determining the second reference line ending point by applying the intersecting tangent method to the second reference line starting point; and determining a sharpness index by using a peak point of the pulse wave signal, the first reference line, and the second reference line.

Abstract: The present invention relates to a separation and recovery system and method of hydrogen from a coke oven gas (COG) in a steel industry, and more particularly, to a separation and recovery system and method of hydrogen from a coke oven gas (COG) in a steel industry, the system including a pre-processing unit removing impurities including tar, moisture, oil, hydrogen sulfide, and dusts from the coke oven gas (COG), a membrane separation unit including a polymer separation membrane module to generate a hydrogen concentrated gas stream by membrane-separating the coke oven gas (COG) processed in the pre-processing unit, and an adsorption unit separate and recover the hydrogen by allowing the hydrogen concentrated gas stream to contact an absorbent.

Abstract: Disclosed herein is a system for recovering carbon monoxide from an industrial by-product gas, the system including a supply unit for supplying an industrial by-product gas containing carbon dioxide, nitrogen, carbon monoxide, and hydrogen, a first membrane separation unit including a separation membrane capable of allowing carbon dioxide and hydrogen to permeate, and receiving the industrial by-product gas supplied from the supply unit to allow carbon dioxide and hydrogen to permeate, and a second membrane separation unit including a polymer membrane in which a transition metal is supported, and receiving a gas remaining in the first membrane separation unit to allow carbon monoxide to permeate.

Abstract: The present invention relates to an olefin metathesis reaction catalyst where rhenium (Re) oxide or molybdenum (Mo) oxide is supported, as a catalyst main component, on a surface-modified mesoporous silica or mesoporous alumina support, and a preparation method therefor. The olefin metathesis reaction catalyst of the present invention allows highly efficient metathesis of long-chain unsaturated hydrocarbons having at least eight carbons at a low temperature of 150° C. or lower. The catalyst can be separated readily from reaction solution, regenerated at a low temperature of 400° C. or lower by removing toxins accumulated on it during the metathesis reaction, and used repeatedly in metathesis reaction many times, thereby being made good use in commercial olefin metathesis processes.

Abstract: The present invention relates to an olefin metathesis reaction catalyst where rhenium (Re) oxide or molybdenum (Mo) oxide is supported, as a catalyst main component, on a surface-modified mesoporous silica or mesoporous alumina support, and a preparation method therefor. The olefin metathesis reaction catalyst of the present invention allows highly efficient metathesis of long-chain unsaturated hydrocarbons having at least eight carbons at a low temperature of 150° C. or lower. The catalyst can be separated readily from reaction solution, regenerated at a low temperature of 400° C. or lower by removing toxins accumulated on it during the metathesis reaction, and used repeatedly in metathesis reaction many times, thereby being made good use in commercial olefin metathesis processes.

Abstract: A control apparatus and method for controlling an image display includes at least one reference object for generating a predetermined spectrum signal, a modulation unit for modulating the predetermined spectrum signal with a predetermined method, and a remote controller. The remote controller includes an image sensor for receiving the modulated predetermined spectrum signal and generating a digital signal and a processing unit for receiving the digital signal, demodulating the digital signal, and calculating an image variation of the image of the reference object formed on the digital image.

Abstract: The present invention relates to a wafer level package and a method of manufacturing the same. The wafer level package includes a first substrate including a first region and second regions with grooves around the first region; a semiconductor device positioned in the first region; first sealing members positioned in the grooves; a second substrate including projection units corresponding to the second regions in order to form a cavity corresponding to the first region; and second sealing members which are positioned above the projection units and laminate the first and second substrates to each other by being bonded to the first sealing members, and can prevent the sealing members from flowing to any region except for the sealing regions.

Abstract: A method for manufacturing a crystal device is provided. The method includes providing a package wafer including a plurality of internal and external connection terminals each having top and bottom ends respectively exposed to top and bottom surfaces of the package wafer; forming a height control member on the top end of the internal and external connection terminal and bonding one end of a crystal blank including an excitation electrode on the height control member; placing a bottom surface of a cap wafer having a cavity, which is open downward, on the top surface of the package wafer to which the crystal blank is mounted, and anodically bonding the package wafer with the cap wafer; and cutting the package wafer and the cap wafer in a direction across a bonding line formed by the bonding of the package wafer and the cap wafer to provide a plurality of crystal resonator that are individually separated.