摘要:
Provided is a carbon fiber manufacturing method including a surface treatment step of ejecting an ozone solution in which ozone is dissolved in solvent from a fluid ejecting port toward a carbon fiber bundle and causing the ozone solution to pass between single fibers of the carbon fiber bundle so as to contact surfaces of the single fibers so that the surfaces of carbon fibers are treated by the ozone solution. Also, provided is a carbon fiber subjected to a surface treatment by the carbon fiber manufacturing method.
摘要:
A swine feed containing as additives a spice and 50-500 ppm of vitamin E. A method for producing pork with improved quality by raising swine with such a feed is also disclosed. When swine are raised with the feed of the present invention, it is possible to produce pork which gives less smell, maintains freshness and quality for prolonged periods, generates less drip, and exhibits good moisture retainability. Moreover, the growth rate of the swine is excellent.
摘要:
Provided are: a carbon fiber bundle which has a large value of single-fiber fineness and excellent productivity and which, despite this, contains few interlaced single fibers therein and has excellent spreadability; and precursor fibers which are suitable for use in producing the carbon fiber bundle. The precursor fibers are a carbon-fiber-precursor acrylic fiber bundle which comprises a polyacrylonitrile copolymer comprising 95-99 mol % acrylonitrile units and 1-5 mol % hydroxyalkyl (meth)acrylate units and which has a single-fiber fineness of 1.5-5.0 dtex. In the acrylic fiber bundle, the cross-section of each single fiber which is perpendicular to the fiber axis has a shape that has a roundness of 0.9 or less. The roundness is a value determined using equation (1) where S and L are the cross-sectional area and the circumferential length, respectively, of a single fiber which are obtained by examining, with an SEM, the cross-section of the single fiber which is perpendicular to the fiber axis and analyzing the obtained image. Roundness=4pS/L2 (1)
摘要:
When a test mode signal from a control circuit is activated, an operation of a column related circuit is controlled to continuously apply a voltage stress to complementary internal data lines included in the column related circuit. Specifically, a write driver driving a data line is forcedly kept in an inactive state, a sense amplifier is connected to the internal data lines, a column select operation is prohibited and the internal data lines are forcedly, continuously driven in accordance with the write driver, or a voltage setting circuit is connected to the internal data lines and the voltage stress of the internal data lines is accelerated in accordance with the voltage setting circuit during a test. It is possible to continuously apply the voltage stress between complementary data lines of the internal data lines without the need to repeatedly carry out a data write operation, and it is possible to reduce time required for an inter-complementary data line voltage stress test.
摘要:
A complementary circuit device which cancels a latch-up phenomenon to return to normal operation includes a complementary circuit, a latch-up detection circuit and a reset circuit. The complementary circuit, which is normally started from a prescribed logic state in response to an initial power application of power to the circuit, is susceptible to erroneous restart when the same is resupplied with power immediately after occurrence of a latch-up phenomenon. The latch-up detection circuit detects a latch-up phenomenon occurring in the complementary circuit. The reset circuit resets the complementary circuit to the prescribed logic state in response to an output from the latch-up detection circuit. The complementary circuit is reset again to the prescribed state in a manner similar to the case of initial application of power. The invention facilitates a normal return to operation of a complementary circuit upon cancellation of the latch-up phenomenon.
摘要:
Provided is a carbon fiber manufacturing method including a surface treatment step of ejecting an ozone solution in which ozone is dissolved in solvent from a fluid ejecting port toward a carbon fiber bundle and causing the ozone solution to pass between single fibers of the carbon fiber bundle so as to contact surfaces of the single fibers so that the surfaces of carbon fibers are treated by the ozone solution. Also, provided is a carbon fiber subjected to a surface treatment by the carbon fiber manufacturing method.
摘要:
In a DRAM column decoder, an OR gate receiving a test signal and an output of a column decoder unit circuit is provided corresponding to each column select line. When test signal is at the active "H" level, all column select lines attain the "H" level and all column select gates are rendered conductive, allowing collective writing row by row. A separate circuit for collective writing is not required, so that the layout area is reduced.