摘要:
Apparatus for cultivating aerobic microorganisms is provided which comprises cell multiplying compartment and cell ripening compartment. The invention also provides a cultivation process using the same apparatus. The invention improves oxygen transfer rate and utilization of oxygen, thus enabling cultivation at a higher concentration of microorganisms as compared with any conventional process.
摘要:
A broth containing yeast cells is continuously or intermittently removed from a fermentor. Then, yeast cells are separated from the filtrate using a cell separator, or further washed with water. Then, the yeast cells so obtained are recycled to the fermentor, whereby yeasts are cultivated at a high cell concentration of from 6% to about 20% based on dry weight. As discussed herein, by removing the filtrate from the cultivation system, there is no accumulation of metabolites and salts prohibiting the cultivation of yeasts, and further the growth of miscellaneous microorganisms which interfere with yeast cell growth, is surprisingly suppressed.
摘要:
A process of an interesterification reaction of fats, wherein a fatty acid moiety of a glyceride is substituted by other fatty acid moiety, and the reaction is accelerated by a catalyst and is continued constantly at a high rate for a long time. The process uses a dry cell for a catalyst. The dry cell is prepared from a lipase-containing microorganism by cultivating it to increase a lipase content and drying it to control water content.
摘要:
A table saw has a circular saw table, a miter table and a supplementary table to form a working table, on the front and rear sides of which two guide rails are disposed slidably with respect to the working table. The miter table has a miter fence thereon whose pivot points are provided at two separate positions.
摘要:
The present invention is directed to a copolymer containing a 3-hydroxybutyrate (3HB) unit and a 3-hydroxyhexanoate (3HHx) unit, a three-component copolymer containing at least a 3-hydroxybutyrate (3HB) unit and a 3-hydroxyhexanoate (3HHx) unit, and a four-component copolymer containing at least a 3-hydroxybutyrate (3HB) unit and a 3-hydroxyhexanoate (3HHx) unit. The use of a microorganism of the genus Aeromonas according to the present invention makes it possible to produce a wide variety of plastic materials ranging from rigid plastics to elastic plastics by selecting copolymer components and adjusting their composition.
摘要:
A variable cutting-angle circular saw device includes a base; a rotary table 2 rotatably disposed in the central portion of the base; a bracket liftably attached to a hinge; a motor, a speed reducer, a circular saw, an outer cover, and a safety cover, all being fixed to the bracket; a fence fixed in a rearward position of the base; a clamp fixed at left- and right-hand positions of the device so as to allow a workpiece to be clamped for cutting the workpiece. A sawdust-guiding frame piece is suspended from a lower end of a rear portion of the cover so as to smoothly block a gap between the lower end of the rear portion of the outer cover and an upper surface of a curved portion in the central portion of the fence, guiding the sawdust blowing up via the blow-up port, to the inner side of the rear end of the outer cover. A sawdust accommodating chamber below the rotary table is closed at the bottom and has a substantially arcuate bag-like shape, and communication with the cover via a port at the rear thereof.
摘要:
A work retainer device for a scroll-saw in which a work retainer is mounted on an arm cover of an upper arm. Two brackets are formed at both distal ends of the arm cover to embrace the upper arm from both sides. Upright portions of a work retainer holding member are overlapped with the brackets. The brackets and the upright portions of the work retainer holding member are fastened to each other by a fastening unit including a screw rod which passes laterally through at least one of the overlapped portions of the bracket and the upright portions of the work retainer holding member. A longitudinal hole is formed in the upright portions of the work retainer holding member. The work retainer is fixed to a lower portion of the work retainer holding member.
摘要:
A table saw has a circular saw table, a miter table and a supplementary table to form a working table, on the front and rear sides of which two guide rails are disposed slidably with respect to the working table. The miter table has a miter fence thereon whose pivot points are provided at two separate positions.
摘要:
A circular saw device having a variable cut-off angle includes a rotary table provided on a base, and a rotatable circular saw mounted on the rotary table to be movable upwardly and downwardly. A locator is provided on the base and has a curved front central portion concave backwards so that the locator does not interfere with the saw. The locator is movable between a first and a second position depending upon the cross-sectional size of the workpiece to be cut by the saw. The locator is placed in a first position when the workpiece has a small cross-sectional size and in a second position when the workpiece has a large cross-sectional size. Fitted members are provided in the bottom of the locator and are irremovably fitted in guide holes of the base so that the members are slidable in the holes to move the locator from the first to the second position. Pins are provided in the locator and are removably fitted in the small holes of the base to place the locator in the first or the second position.
摘要:
A table saw has a circular saw table, a miter table and a supplementary table to form a working table, on the front and rear sides of which two guide rails are disposed slidably with respect to the working table. The miter table has a miter fence thereon whose pivot points are provided at two separate positions.