摘要:
A track jump control unit adds an FF signal for repetitive disturbance compensation obtained by a learning control which is used in a track-following control and a final value of an FB control low band component just before a track jump to a track jump signal to move a light spot to an adjacent track, thereby driving a carriage. As a track jump signal, a first kick pulse of a predetermined acceleration and a predetermined time, a second kick pulse which continues at a predetermined acceleration until a detection of a track zero-cross point, and a brake pulse of a predetermined acceleration (deceleration) and a predetermined time are used.
摘要:
A data utilizing system comprises a data processor, a database for holding plural pieces of data made corresponding to a date and a time as a record, and a category definition dictionary for holding the category definition data about the plural pieces of data, corresponding to periods. When an indication to categorize the records held in the database is inputted to the data processor, the data processor reads the relevant category definition data from the category definition dictionary, and fundamental data forming each record in the database are classified per given period into predetermined categories and tabulated.
摘要:
A process for the production of amides utilizing microorganisms is described, which comprises subjecting nitriles having from 2 to 6 carbon atoms to the action of a microorganism belonging to the genus Rhodococcus, and genus Arthrobacter or the genus Microbacterium having an ability to hydrate the nitriles to form the corresponding amides in an aqueous medium.
摘要:
Cells of Pseudomonas bacteria having a high nitrile hydratase activity can be obtained in a high yield by adding to a culture medium cysteine and (or) cystine in the preparation of cells of bacteria having nitrile hydratase activity by cultivating under nitrile hydratase-inducing conditions Pseudomonas bacteria capable of producing nitrile hydratase.
摘要:
A process is described for producing bacteria having a high nitrilase activity comprising incubating bacteria having an ability to produce nitrilase, wherein the improvement comprises using a culture medium containing a water soluble iron compound.
摘要:
The present invention relates to a process for producing acrylamide or methacrylamide utilizing microorganisms having a nitrilase activity. This process involves (1) utilizing highly active novel bacteria belonging to the genus Corynebacterium or the genus Nocardia, (2) conducting the reaction utilizing microorganisms having a nitrilase activity at temperatures as low as the freezing point of the medium to 15.degree. C. so as to conduct the reaction for a long period of time while maintaining a high concentration of acrylamide or methacrylamide, and (3) conducting the reaction according to a newly devised continuous column process to obtain a highly concentrated acrylamide or methacrylamide aqueous solution with economic advantages.
摘要:
An object of the invention is to provide a control apparatus and a control method having a simple constitution, which can stably perform switching of optical path in an optical signal exchanger, while suppressing an influence on a control due to the mechanical resonance of tilt mirrors. To this end, the control apparatus of the optical signal exchanger is constituted such that in an optical signal exchanger of three-dimensional type using one set of MEMS mirror arrays, each having a plurality of tilt mirrors arranged on a plane, each tilt mirror having a reflecting surface an angle of which is controllable, when the angle of the MEMS mirror on the optical path is feedback controlled by detecting power of an optical signal output from a specific position, a resonance component removing section that removes a resonance frequency component included in a control signal is shared corresponding to a pair of driving electrodes arranged in a coaxial direction of the MEMS mirror. As a result, the influence on the feedback control by a resonance action of the MEMS mirror can be reduced, while suppressing an increase in circuit size.
摘要:
A plate fixed to a recording drum is irradiated with a laser beam emitted from an objective lens of a recording head, to generate gas. The recording head has a gas diffusion/suction unit forming an air stream in front of the objective lens. Further, a second suction unit elongated along the rotational axis of the recording drum is arranged between a transport unit supplying the plate to the recording drum and the recording head. Thus, it is possible to prevent the gas not only from contaminating the objective lens but also from diffusing in a housing following rotation of the recording drum. Consequently, an image recorder employing a photosensitive material generating gas in reaction to heat resulting from the laser beam emitted from the recording head can minimize contamination of the recording head, the transport unit etc. arranged in the housing of the apparatus with the gas.
摘要:
The data, as read out from a trunk database, and the read-out data, as processed, are stored in a public database. A setup unit and an operations support unit manage the stored data of the public database and the attribute data of the stored data by a dictionary. In accordance with a demand of a user, an inquiry unit processes and displays the data on the basis of the data stored in the public database and the attribute data.
摘要:
The data, as read out from a trunk database, and the read-out data, as processed, are stored in a public database. A setup unit and an operations support unit manage the stored data of the public database and the attribute data of the stored data by a dictionary. In accordance with a demand of a user, an inquiry unit processes and displays the data on the basis of the data stored in the public database and the attribute data.