摘要:
The present invention provides a protein having low-substrate-specific amino acid racemase activity; DNA encoding the protein; a recombinant DNA comprising the DNA; a transformant carrying the recombinant DNA; a process for producing the protein by using the transformant; and a process for producing a racemic amino acid which comprises allowing a culture of the transformant or a treated matter thereof as an enzyme source and an amino acid to be present in an aqueous medium to racemize the amino acid in the aqueous medium, and recovering the racemic amino acid from the aqueous medium.
摘要:
A cassette type magnetic recording/reproducing apparatus, such as a tape recorder, is disclosed, in which a magnetic tape accommodated in a tape cassette attached at a tape cassette attachment position within the main body of the apparatus is extracted by a loading mechanism so as to be loaded onto a predetermined tape running passage in the apparatus. According to the invention, the loading operation of the magnetic tape by the loading mechanism is enabled on the condition that it is sensed that a cassette holder for attaching the tape cassette at the tape cassette attachment position is locked at the tape cassette attachment position and that the tape cassette is attached at the tape cassette attachment position, in such a manner that a positive tape loading operation is assured and the magnetic tape as well as various operating units within the main body of the apparatus are protected from damage.
摘要:
Vehicle information such as vehicle speed, engine rotational speed when a vehicle runs are collected and converted into numerical data every constant period of time and these numerical data are written and recorded into a memory module. The memory module has therein a non-volatile memory and is detachably provided to a write unit attached to the vehicle. The data writing and power supply to the memory module from the write unit are executed by the contactless coupling using induction coils.