摘要:
Provided are a microorganism capable of producing L-threonine and having an inactivated tyrR gene, a method of producing the same and a method of producing L-threonine using the microorganism. The microorganism can be used to produce L-threonine in high yield.
摘要:
Provided are a microorganism capable of producing L-threonine and having an inactivated galR gene, a method of producing the same and a method of producing L-threonine using the microorganism. The microorganism can be used to produce L-threonine in high yield.
摘要:
The present invention relates to a method for producing lactic acid with high concentration and high yield using Lactobacillus paracasei CJLA0310 KCCM-10542 that is separated and identified from Kimchi. Lactic acid is a very important organic acid with a wide range of applications including food additive such as food preservative, condiment or acidifier, and industrial fields such as cosmetics, chemistry, metals, electronics, fabrics, dyeing textiles, and pharmaceutical industries. Particularly, lactic acid is an essential ingredient of polylactic acid, one of biodegradable plastics to replace recalcitrant non-biodegradable plastics which are main causes of environmental contamination.
摘要:
An L-threonine-producing Escherichia coli strain and a method for producing the same are provided. The Escherchia coli strain contains chromosomal DNA with inactivated metJ gene. Therefore, expression repression of threonine biosynthesis genes by a metJ gene product is prevented, thereby producing a high concentration of threonine. Further, a high concentration of L-threonine can be produced in high yield using the method.
摘要:
Carrier module including a carrier module body for seating a semiconductor device on an underside thereof, having a pass through hole from an upper part to the underside the semiconductor device is seated thereon, a housing over the carrier module body, a supplementary housing fitted in a lower part of the housing to be movable in up/down directions, for elastic contact with the carrier module body by a first elastic member fitted inside of the housing, a vacuum tube in the supplementary housing so as to be in communication with the pass through hole in the carrier module body, at least one pair of latches in a lower part of the carrier module body to move apart or close in an outer or inner side, for holding or releasing the semiconductor device seated on the carrier module body, a latch button fitted in an upper part of the carrier module body so as to be movable in up/down directions, and coupled to the latch with a connection pin for moving in up/down directions by an external force, to making the latch to move, and a second elastic member for elastic supporting of the latch buttons on the carrier module body, thereby, when the semiconductor device is brought into contact with the test socket, and tested, holding the semiconductor device with a vacuum formed through the pass through hole in the carrier module body and the vacuum tube in a state the latch releases the semiconductor device.
摘要:
The present invention relates to novel thiourea derivatives as a modulator for vanilloid receptor (VR) and the pharmaceutical compositions containing the same. As diseases associated with the activity of vanilloid receptor, pain acute pain, chronic pain, neuropathic pain, post-operative pain, migraine, arthralgia, neuropathies, nerve injury, diabetic neuropathy, neurodegeneration, neurotic skin disorder, stroke, urinary bladder hypersensitiveness, irritable bowel syndrome, a respiratory disorder such as asthma or chronic obstructive pulmonary disease, irritation of skin, eye or mucous membrane, fervescence, stomach-duodenal ulcer, inflammatory bowel disease and inflammatory diseases can be enumerated. The present invention provides a pharmaceutical composition for prevention or treatment of these diseases.
摘要:
Disclosed is a method of depositing thin films, in which the thin films are continuously deposited into one chamber and 1-6 wafers are loaded into the chamber. In the method, a process gap between a shower head or a gas injection unit and a substrate is capable of being controlled. The method comprises (a) loading at least one substrate into the chamber, (b) depositing the Ti thin film onto the substrate, adjusted so that a first process gap is maintained, (c) moving a wafer block so that the first process gap is changed into a second process gap in order to control the process gap of the substrate upon which the Ti thin film is deposited, (d) depositing the TiN thin film onto the substrate, moved to set the second process gap, and (e) unloading the substrate upon which the Ti/TiN thin films are deposited. If it is possible to continuously deposit Ti/TiN thin films on 1-6 substrates in one chamber, it is possible to set only one chamber among 4 chambers in a PM period, thereby an operating ratio of a cluster tool can be significantly improved. When Ti/TiN is continuously deposited in one chamber, the time needed to move a substrate from a Ti chamber to a TiN chamber is reduced, thus treatment efficiency of the substrate per unit time is significantly increased.
摘要:
A handler for testing semiconductor devices is disclosed which is capable of simplifying the process carried out in an exchanging station, namely, the process of loading/unloading semiconductor devices in/from test trays, and greatly increasing the number of simultaneously testable semiconductor devices. The handler includes a loading station, an unloading station, test trays, an exchanging station comprising a horizontal moving unit for horizontally moving a selected one of the test trays by a predetermined pitch at a working place, a test station in which at least one test board having a plurality of test sockets to be electrically connected with semiconductor devices is mounted, the test station performing a test while connecting the semiconductor devices in one of the test trays, which is fed from the exchanging station to the test station, to the test sockets, device transfer units for transfer the semiconductor devices between the loading station and the exchanging station and between the exchanging station and the unloading station, respectively, and a tray transfer unit for transfer the test trays between the exchanging station and the test station.
摘要:
Provided is a phase change memory device including: a phase change memory unit comprising a phase change layer pattern; a laser beam focusing unit locally focusing a laser beam on the phase change layer pattern of the phase change memory unit; and a semiconductor laser unit generating and emitting the laser beam towards the laser beam focusing unit. Thus set or reset operations in the phase change memory device uses laser beams locally applied, thereby reducing the consumption power and preventing destruction or change in information stored in neighboring cell during the operations of unit cell.
摘要:
An image sensing device includes a gate dielectric layer formed on a substrate and a transfer gate formed on the gate dielectric layer. A masking layer is formed on the transfer gate, the masking layer having a width smaller than a width of the transfer gate, such that a portion of the transfer gate protrudes laterally from under the masking layer. A photodiode is formed in the substrate to be self-aligned with the masking layer and to extending laterally under the transfer gate, that is, to overlap the transfer gate. Because of the overlap of the photodiode with the transfer gate, offset between the photodiode and the transfer gate is eliminated, such that an image lag phenomenon is eliminated.