摘要:
A data recording method and data recoding device to improve operational reliability of NAND flash memory includes calculating an address to record data, extracting information regarding a memory cell corresponding to the calculated address, selecting a data scrambling method based on the information regarding the memory cell, scrambling the data according to the data scrambling method, and recording the scrambled data on the memory cell. The information regarding the memory cell includes a logical block address, a logical page address, a physical block address, a physical page address of the memory cell, and a program/erase cycle of a memory block corresponding to the memory cell.
摘要:
The present invention relates to a thermophilic arabinose isomerase and a method of manufacturing tagatose using the same, and more precisely, a gene encoding arabinose isomerase originating from the thermophile Thermotoga neapolitana DSM 5068, a recombinant expression vector containing the gene, a method of preparing a food grade thermophilic arabinose isomerase from the recombinant GRAS (Generally Recognized As Safe) strain transformed with the said expression vector, and a method of preparing tagatose from galactose using the said enzyme.
摘要:
The present invention relates to a recombinant GRAS (Generally Recognized As Safe) strains expressing thermophilic arabinose isomerase as an active form and method of food grade tagatose by using the same, and more precisely, a gene encoding arabinose isomerase originating from the thermophilic Geobacillus stearothermophilus DSM22 and Geobacillus thermodenitrificans, a recombinant expression vector containing the gene, a recombinant GRAS strains expressing the thermophilic arabinose isomerase as an active form by transformed with the expression vector, and a method of preparing food grade tagatose from galactose by using the same.
摘要:
An apparatus for repairing a semiconductor module including: a heating block comprising a thermal contact surface for contacting a defective semiconductor package mounted on a substrate of the semiconductor module to heat the defective semiconductor package using a conduction method and to melt a solder of the defective semiconductor package, and a vacuum adsorption line for adsorbing the defective semiconductor package and separating the defective semiconductor package from the substrate; and a heater installed in the heating block.
摘要:
An extension pipe for a vacuum cleaner, for providing a sealed channel between a cleaner body and a suction brush and having a joint that includes a bendable part in accordance with a user's desire, comprising a first extension pipe, a second extension pipe pivotably connected to the first extension pipe, and a resilient locking member disposed adjacent the first extension pipe to be resiliently deformed by sliding movement thereof and having a locking protrusion to selectively engage one of a plurality of locking recesses formed in the first extension pipe, thereby selectively restraining pivotal movement of the first and the second extension pipes relative to each other. A joint cover connected to one side of the second extension pipe may pivot together with the second extension pipe to seal the connection joint. In a second embodiment, a release handle is connected to a pair of locking members, each having a locking protrusion to selectively engage one of a plurality of locking recesses.
摘要:
The present invention relates to a thermophilic arabinose isomerase and a method of manufacturing tagatose using the same, and more precisely, a gene encoding arabinose isomerase originating from the thermophile Thermotoga neapolitana DSM 5068, a recombinant expression vector containing the gene, a method of preparing a food grade thermophilic arabinose isomerase from the recombinant GRAS (Generally Recognized As Safe) strain transformed with the said expression vector, and a method of preparing tagatose from galactose using the said enzyme.
摘要:
Provided is a process for continuously producing xylitol in high yield and productivity using a vacuum microfiltration bioreactor containing a fermentation medium for a strain of the genus Candida, which includes: 5 300 g/l of xylose, 1 10 g/l of urea, 1 10 g/l of potassium diphosphate, 0.01 1 g/l of magnesium sulfate, 0.1-10 mg/1 of MnSO404H2O, 0.1 10 mg/1 of CoCl2-6H2O, 0.1 10 mg/1 of NaMoO4-2H2O, 0.1 10 mg/1 of ZnSO4-7H2O, 0.1 10 mg/1 of AlCl3-6H2O, 0.1 10 mg/1 of CuCl2-2H2O, 0.01-5 mg/1 of H3BO3, 1-100 mg/1 of FeSO4 7H2O, 0.1-10 mg/1 of ascorbic acid, 1-100 mg/1 of biotin, 1-100 mg of choline, 1-200 mg/1 of folic acid, 1-100 mg/1 of inositol, 1-100 mg/1 of nicotinic acid, 0.1-10 mg/1 of p-aminobezoic acid, 1-100 mg/1 of pantothernic acid, 0.1-10 mg/1 of pyridoxine, 10-1,000 mg/1 of riboflavin, and 1-100 mg/1 of thiamine.
摘要:
Provided are a novel Candida tropicalis CJ-FID (KCTC 10457BP) derived from honey and a method for producing xylitol using the same. The method includes culturing the Candida tropicalis CJ-FID itself or an alginate-immobilized Candida tropicalis CJ-FID in a fermentation medium containing high concentration xylose and sucrose to obtain xylitol-containing culture, followed by purification with an activated charcoal column and anion column, to finally obtain a powdery xylitol. Therefore, high purity xylitol can be produced with high yield and productivity.
摘要:
The present invention relates to a thermophilic arabinose isomerase and a method of manufacturing tagatose using the same, and more precisely, a gene encoding arabinose isomerase originating from the thermophilic Thermotoga neapolitana DSM 5068, a recombinant expression vector containing the gene, a method of preparing a food grade thermophilic arabinose isomerase from the recombinant GRAS (Generally Recognized As Safe) strain transformed with the said expression vector, and a method of preparing tagatose from galactose using the said enzyme.
摘要:
Provided is a process for continuously producing xylitol in high yield and productivity using a vacuum microfiltration bioreactor containing a fermentation medium for a strain of the genus Candida, which includes: 5 300 g/l of xylose, 1 10 g/l of urea, 1 10 g/l of potassium diphosphate, 0.01 1 g/l of magnesium sulfate, 0.1-10 mg/l of MnSO4.4H2O, 0.1 10 mg/l of CoCl2.6H2O, 0.1 10 mg/l of NaMoO4.2H2O, 0.1 10 mg/l of ZnSO4.7H2O, 0.1 10 mg/l of AlCl3.6H2O, 0.1 10 mg/l of CuCl2.2H2O, 0.01-5 mg/l of H3BO3, 1-100 mg/l of FeSO4 7H2O, 0.1-10 mg/l of ascorbic acid, 1-100 mg/l of biotin, 1-100 mg of choline, 1-200 mg/l of folic acid, 1-100 mg/l of inositol, 1-100 mg/l of nicotinic acid, 0.1-10 mg/l of p-aminobezoic acid, 1-100 mg/l of pantothenic acid, 0.1-10 mg/l of pyridoxine, 10-1,000 mg/l of riboflavin, and 1-100 mg/l of thiamine.