摘要:
A heating apparatus for chemical vapor deposition equipment which is capable of providing a uniform temperature distribution, even for a wafer having a large surface area. The heating apparatus may include upper and lower reflection plates, with a heater located between the reflection plates. The apparatus may also include a barrier plate to help provide a uniform heat distribution and to minimize dust generation and metallic pollution on a wafer. The apparatus may also include a heater cover for covering the upper portions of the first reflection plate, the heater and the barrier plate, and the sides thereof. The upper reflection plate, which is installed above the heater cover, may be integrally formed with a gas spraying means.
摘要:
A drum shell for enhancing the sound and tone qualities of a drum is provided. The drum shell has an outer band, an inner band, and an aerated core interposed therebetween. In one aspect, the core defines a plurality of spaces each providing a sound tube for vibrating air contained within the spaces.
摘要:
An apparatus for inspecting a surface of a cylindrical body includes an arranging unit configured to arrange a plurality of cylindrical bodies at regular intervals; and a circular conveyor configured to rotate while keeping in contact with the arranging unit, receive the arranged cylindrical bodies in order and move the received cylindrical bodies in a circumferential direction. Further, the apparatus includes a plurality of clamp units configured to be arranged around a circumstance of the circular conveyor at predetermined intervals, receive the cylindrical bodies in order; and a photographing unit configured to photograph surfaces of the clamped cylindrical bodies in order. Furthermore, the apparatus includes a control unit configured to analyze the surface of each of the cylindrical bodies and determine whether the surface is defective or not.
摘要:
An apparatus for inspecting a surface of a cylindrical body includes an arranging unit configured to arrange a plurality of cylindrical bodies at regular intervals; and a circular conveyor configured to rotate while keeping in contact with the arranging unit, receive the arranged cylindrical bodies in order and move the received cylindrical bodies in a circumferential direction. Further, the apparatus includes a plurality of clamp units configured to be arranged around a circumstance of the circular conveyor at predetermined intervals, receive the cylindrical bodies in order; and a photographing unit configured to photograph surfaces of the clamped cylindrical bodies in order. Furthermore, the apparatus includes a control unit configured to analyze the surface of each of the cylindrical bodies and determine whether the surface is defective or not.
摘要:
The present invention relates to cells or plants that can produce polylactate or its copolymers and to a method for preparing polylactate or its copolymers using the same. More specifically, cells or plants with the ability to produce polylactate or hydroxyalkanoate-lactate copolymers comprise both a gene encoding an enzyme that converts lactate into lactyl-CoA and a gene encoding polyhydroxyalkanoate (PHA) synthase which uses lactyl-CoA as a substrate. Also described is a method for preparing polylactate or hydroxyalkanoate-lactate copolymers which comprises culturing the cells in a medium containing lactate or lactate and various hydroxyalkanoates or culturing the plants. Effective preparation of hydroxyalkanoate-lactate copolymer which comprises various hydroxyalkanoates as well as polylactate, using the cells or the plants, is disclosed.
摘要:
Various embodiments include methods and apparatuses for forming and using pixels for image sensors. In one embodiment, an image sensor is disclosed. The image sensor includes an optically sensitive material; a plurality of electrodes proximate the optically sensitive material, including at least a first electrode, a second electrode and a third electrode; and a charge store. The first electrode is coupled to the charge store, and the first electrode and the second electrode are configured to provide a bias to the optically sensitive material to direct photocarriers to the charge store. Other methods and apparatuses are disclosed.
摘要:
A mutant capable of producing 1,4-butanediol and a method of preparing 1,4-butanediol using the same are provided. The mutant microorganism is prepared by introducing and amplifying genes encoding enzymes converting succinate into 4-hydroxybutyrate and 4-hydroxybutyrate into 1,4-butanediol in a microorganism capable of producing succinate. The method includes culturing the mutant in a medium containing carbohydrate and obtaining 1,4-butanediol from the culture. Thus, 1,4-butanediol, which is essential in chemical industry, can be prepared in a biological process.
摘要:
A novel alpha-1 antitrypsin variant, a method of preparing the same, and use thereof are provided. The alpha-1 antitrypsin variant has excellent stability in the body and maintains an inhibitory effect on elastase activities because the blood half-life (t1/2) and the area under blood drug concentration vs. time curve (AUC) are remarkably increased by adding an N-glycosylation site in animal cells through amino acid mutation between 1st and 25th positions of the N-terminus of alpha-1 antitrypsin. Therefore, the alpha-1 antitrypsin variant can be useful in preventing or treating alpha-1 antitrypsin deficiency.
摘要:
A backlight assembly includes a light source unit, at least one block driving unit, a controller unit and a noise removing circuit. The light source unit includes a plurality of dimming blocks generating light. The block driving unit drives the dimming blocks. The controller unit controls the block driving unit. The noise removing circuit is connected to the block driving unit and the controller unit to prevent noise from being applied to a reset terminal of the block driving unit.