Abstract: A method of inspecting defects of a transparent substrate may include: illuminating a transparent substrate; calculating an incidence angle range of light so that a first region where the light meets a first surface of the transparent substrate and a second region where light meets a second surface being opposite the first surface of the transparent substrate do not overlap each other; adjusting an incidence angle according to the incidence angle range; adjusting a position of a first detector so that a first field-of-view of the first detector covers the first region and does not cover the second region; adjusting a position of a second detector so that a second field-of-view of the second detector covers the second region and does not cover the first region; and obtaining a first image of the first region and a second image of the second region from the first and second detector, respectively.

Abstract: A method of inspecting defects on a transparent substrate may include: selecting a gradient of an illumination optical system so that light incident on the transparent substrate has a first angle; selecting a gradient of a detection optical system so that an optical axis of the detection optical system located over the transparent substrate has a second angle, which is equal to or less than the first angle; adjusting a position of at least one of the illumination optical system, the transparent substrate, and the detection optical system so that a field-of-view of the detection optical system covers a first region where the light meets a first surface of the transparent substrate and does not cover a second region where light meets a second surface of the transparent substrate, the second surface being opposite to the first surface; illuminating the transparent substrate; and detecting light scattered from the transparent substrate.

Abstract: A method of inspecting defects of a transparent substrate may include: illuminating a transparent substrate; calculating an incidence angle range of light so that a first region where the light meets a first surface of the transparent substrate and a second region where light meets a second surface being opposite the first surface of the transparent substrate do not overlap each other; adjusting an incidence angle according to the incidence angle range; adjusting a position of a first detector so that a first field-of-view of the first detector covers the first region and does not cover the second region; adjusting a position of a second detector so that a second field-of-view of the second detector covers the second region and does not cover the first region; and obtaining a first image of the first region and a second image of the second region from the first and second detector, respectively.

Abstract: The present invention provides a device for enhancing fuel efficiency, the device including: a first casing in which first and second rotating pulverizers are disposed at both ends of a first injection hole at the center of the first casing and a fuel inlet is disposed on a first side of the first casing; a connection part which is disposed on a second side of the first casing and in which a second injection hole is formed in the center of the connection part; a second casing which is disposed on a second side of the connection part and in which a fuel outlet is disposed on a second, discharge hole side of the second casing; and a fuel guide means which is disposed inside the second casing and which includes first, second, third, and fourth guide tubes and first and second rotating guide tubes.

Abstract: The present invention relates to an apparatus and method for generating a bidirectional chirp signal by using a phase accumulation polynomial, and the apparatus for generating a bidirectional chirp signal according to an embodiment may include an extraction unit extracting time interval information from the output of a frequency accumulator, a polynomial handling unit applying the phase accumulation polynomial to the extracted time interval information to generate a polynomial output value, and a bidirectional chirp signal output unit outputting a bidirectional chirp signal on the basis of the generated polynomial output value.

Abstract: The present invention relates to an apparatus and method for generating a bidirectional chirp signal by using a phase accumulation polynomial, and the apparatus for generating a bidirectional chirp signal according to an embodiment may include an extraction unit extracting time interval information from the output of a frequency accumulator, a polynomial handling unit applying the phase accumulation polynomial to the extracted time interval information to generate a polynomial output value, and a bidirectional chirp signal output unit outputting a bidirectional chirp signal on the basis of the generated polynomial output value.

Abstract: Provided are a polyurethane resin composition for a hollow fiber membrane potting agent, and a hollow fiber membrane module, and more particularly, a polyurethane resin composition for a hollow fiber membrane potting agent, which includes a polyurethane resin and a hydrophilic additive to have excellent resistance to internal/external pressure, and also to have excellent sealing performance, antifouling property, etc., and a hollow fiber membrane module including a cured product thereof.

Abstract: Disclosed is a tilting type chair. The chair includes: a seat on which a user is seated; a back support configured to support a back portion of the user seated on the seat; and a tilting section interposed between the back support and the seat to couple the seat to the back support. When the user applies a load to bend the back support backward, the tilting section moves the seat upward in proportion to the load applied by the user, and when the load applied to the back support by the user is removed, the tilting section moves the seat downward in proportion to the removed load. As a result, a more comfortable seating feeling may be provided to the user seated on the seat of the chair. In addition, the tilting may be limited as needed by the user. Thus, the chair may further improve the user's convenience.

Abstract: The present invention relates to an air diffuser including an air diffusing pipe in which at least two pore groups including two or more pores are formed, and a membrane bioreactor including the same.

Abstract: Disclosed is a tilting type chair. The chair includes: a seat on which a user is seated; a back support configured to support a back portion of the user seated on the seat; and a tilting section interposed between the back support and the seat to couple the seat to the back support. When the user applies a load to bend the back support backward, the tilting section moves the seat upward in proportion to the load applied by the user, and when the load applied to the back support by the user is removed, the tilting section moves the seat downward in proportion to the removed load. As a result, a more comfortable seating feeling may be provided to the user seated on the seat of the chair. In addition, the tilting may be limited as needed by the user. Thus, the chair may further improve the user's convenience.

Abstract: A siloxane based coating composition having excellent dyeability, abrasion resistance, glossiness and transparency, a preparation method thereof, and an optical lens coated by the coating composition are suggested. The siloxane based coating composition includes organo silane compound, inorganic oxide (H-index filler), solvent and a dyeing improving material. The dyeing improving material adopts nitric acid, hydrochloric acid, phosphoric acid, sodium nitrate, potassium nitrate, silver nitrate, or the like. The siloxane based coating composition shows excellent dyeability owing to the dyeing improving material, excellent abrasion resistance owing to the organo silane compound, and excellent glossiness and transparency, so it may be applied as a coating film on a surface of a plastic lens such as optical lens, industrial safety lens and leisure-purpose goggle that require high transparency.

Abstract: A dielectric multilayer structure of a microelectronic device, in which a leakage current characteristic and a dielectric constant are improved, is provided in an embodiment. The dielectric multilayer structure includes a lower dielectric layer, which is made of amorphous silicate (M1-xSixOy) or amorphous silicate nitride (M1-xSixOyNz), and an upper dielectric layer which is formed on top of the lower dielectric layer and which is made of amorphous metal oxide (M?Oy) or amorphous metal oxynitride (M?OyNz).

Abstract: A gate structure includes a gate insulation layer pattern, a gate electrode, a first spacer and a protecting layer pattern. The gate insulation layer pattern is on a substrate. The gate electrode is on the gate insulation layer pattern, the gate electrode including a lower portion having a first width, a central portion having a second width smaller than the first width and an upper portion having a third width. The first spacer is on a lower sidewall of the gate electrode. The protecting layer pattern is on a central sidewall of the gate electrode.

Abstract: A method of making a semiconductor device is disclosed. A mask if formed over a first and a second region of a semiconductor body, and a vertical diffusion barrier is formed in a region between the first and second regions. A mask is then formed over the second region and the first region is left unmasked. The semiconductor body is exposed to a dopant, so that the first region is doped and the second region is blocked from the dopant by the mask and by the vertical diffusion barrier.

Abstract: A siloxane based coating composition having excellent dyeability, abrasion resistance, glossiness and transparency, a preparation method thereof, and an optical lens coated by the coating composition are suggested. The siloxane based coating composition includes organo silane compound, inorganic oxide (H-index filler), solvent and a dyeing improving material. The dyeing improving material adopts nitric acid, hydrochloric acid, phosphoric acid, sodium nitrate, potassium nitrate, silver nitrate, or the like. The siloxane based coating composition shows excellent dyeability owing to the dyeing improving material, excellent abrasion resistance owing to the organo silane compound, and excellent glossiness and transparency, so it may be applied as a coating film on a surface of a plastic lens such as optical lens, industrial safety lens and leisure-purpose goggle that require high transparency.

Abstract: A small portable power pack includes a fuel/air supply for mixing fuel, which is supplied from outside, with outside air, thereby providing mixed gas; a uniflow scavenging micro-engine for receiving mixed gas from the fuel/air supply and igniting mixed gas to explode; a control panel for operating and controlling the uniflow scavenging micro-engine; a capacitor battery for powering the control panel and the uniflow scavenging micro-engine. The portable power pack is easily carried and used without the restriction of spaces and sites.

Abstract: There are provided methods of fabricating a metal silicate layer on a semiconductor substrate using an atomic layer deposition technique. The methods include performing a metal silicate layer formation cycle at least one time in order to form a metal silicate layer having a desired thickness. The metal silicate layer formation cycle includes an operation of repeatedly performing a metal oxide layer formation cycle K times and an operation of repeatedly performing a silicon oxide layer formation cycle Q times. K and Q are integers ranging from 1 to 10 respectively. The metal oxide layer formation cycle includes the steps of supplying a metal source gas to a reactor containing the substrate, exhausting the metal source gas remaining in a reactor to clean the inside of the reactor, and then supplying an oxide gas into the reactor.

Abstract: A dielectric multilayer structure of a microelectronic device, in which a leakage current characteristic and a dielectric constant are improved, is provided in an embodiment. The dielectric multilayer structure includes a lower dielectric layer, which is made of amorphous silicate (M1-xSixOy) or amorphous silicate nitride (M1-xSixOyNz), and an upper dielectric layer which is formed on top of the lower dielectric layer and which is made of amorphous metal oxide (M'Oy) or amorphous metal oxynitride (M'OyNz).

Abstract: A gate structure includes a gate insulation layer pattern, a gate electrode, a first spacer and a protecting layer pattern. The gate insulation layer pattern is on a substrate. The gate electrode is on the gate insulation layer pattern, the gate electrode including a lower portion having a first width, a central portion having a second width smaller than the first width and an upper portion having a third width. The first spacer is on a lower sidewall of the gate electrode. The protecting layer pattern is on a central sidewall of the gate electrode.

Abstract: A dielectric multilayer structure of a microelectronic device, in which a leakage current characteristic and a dielectric constant are improved, is provided in an embodiment. The dielectric multilayer structure includes a lower dielectric layer, which is made of amorphous silicate (M1-xSixOy) or amorphous silicate nitride (M1-xSixOyNz), and an upper dielectric layer which is formed on top of the lower dielectric layer and which is made of amorphous metal oxide (M?Oy) or amorphous metal oxynitride (M?OyNz).