摘要:
Provided is a granular fertilizer coated with a thermosetting resin coating, characterized in that a dissolution rate of the fertilizer is retarded by containing a hydrophobic compound in at least one of the coating portion and the fertilizer portion thereof. The dissolution rate is further retarded than that of a conventional granular coated fertilizer coated with a thermosetting resin.
摘要:
A semiconductor memory device comprises memory cells, a bitline connected to the memory cells, a read circuit including a precharge circuit, and a first transistor connected between the bitline and the read circuit, wherein a first voltage is applied to a gate of the first transistor when the precharge circuit precharges the bitline, and a second voltage which is different from the first voltage is applied to the gate of the first transistor when the read circuit senses a change in a voltage of the bitline.
摘要:
A NAND cell unit includes a plurality of memory cells which are connected in series. An erase operation is effected on all memory cells. Then, a soft-program voltage, which is opposite in polarity to the erase voltage applied in the erase operation, is applied to all memory cells, thereby setting all memory cells out of an over-erased state. Thereafter, a program voltage of 20V is applied to the control gate of any selected one of the memory cells, 0V is applied to the control gates of the two memory cells provided adjacent to the selected memory cell, and 11V is applied to the control gates of the remaining memory cells. Data is thereby programmed into the selected memory cell. The time for which the program voltage is applied to the selected memory cell is adjusted in accordance with the data to be programmed into the selected memory cell. Hence, data "0" can be correctly programmed into the selected memory cell, multi-value data can be read from any selected memory cell at high speed.
摘要:
A thermoplastic resin composition in which 5 to 45 parts by weight of carbon fiber and 0.1 to 10 parts by weight of conductive carbon black are compounded per 100 parts by weight of resin components comprising an aromatic polycarbonate resin and an aromatic polysulfone resin. The thermoplastic resin composition is excellent in heat-resistance and mechanical strength, and heat-resistant IC trays therefrom are useful products which can endure drying of IC at high temperature and are excellent in handling properties.
摘要:
A semiconductor memory device includes memory cells, a bitline connected to the memory cells, a read circuit including a precharge circuit, and a first transistor connected between the bitline and the read circuit, wherein a first voltage is applied to a gate of the first transistor when the precharge circuit precharges the bitline, and a second voltage which is different from the first voltage is applied to the gate of the first transistor when the read circuit senses a change in a voltage of the bitline.
摘要:
A control constant identification system which comprises a command generation section for generating a speed command Vref, a speed control section for determining a torque command Tref by the speed command Vref and actual motor speed Vfb and controlling motor speed, an estimation section for simulating the speed control section according to a model and outputting an estimated torque command Tref', and an identification section for identifying inertia J according to a ratio between a value STref resulting from time integration of the torque command Tref output by the speed control section at a predetermined interval [a, b] and a value STref' resulting from time integration of the torque command Tref' output by the estimation section at the predetermined interval [a, b]. To accurately find the inertia J by executing a small amount of operations, the predetermined interval [a, b] and the speed command Vref are set so that the actual motor speed Vfb and motor speed Vfb' found by the estimation section become the same non-zero values at the time b.
摘要:
Multilayer antireflection coatings are disclosed for grazing incident ultraviolet light having a large angle of incidence. The coatings comprise, from the medium side, layers of high-refractive-index material alternating with layers of low-refractive-index material. Each layer of the high-refractive-index material has the same optical thickness, and each layer of the low-refractive-index material has the same optical thickness. The multilayer antireflection coatings are effective in preventing reflection of p-polarized light, from optical elements coated with such a coating, having a wavelength of 150 nm.ltoreq..lambda..ltoreq.250 nm in a range of angle of incidence of 70.degree..ltoreq..theta..ltoreq.80.degree..
摘要:
Provided is a mechanical-vibration detecting apparatus in which not only adjustment is easy but also mechanical vibration can be taken out with high accuracy, and a vibration-reduction control apparatus by which reduction of mechanical vibration can be achieved. In a motor control apparatus for controlling the torque of a motor, provided are an equivalent rigid body model 103; a proportional operation means 104; a high-pass filter 105; and means for adding a torque signal and an output of the proportional operation means to supply a resulting addition signal to the equivalent rigid body model, and for subtracting an output of the equivalent rigid body model from a velocity signal of the motor control apparatus to supply a resulting difference signal to the proportional operation means and to the high-pass filter so that an output of the high-pass filter is used as a mechanical vibration control signal.
摘要:
The time required for the program verify and erase verify operations can be shortened. The change of threshold values of memory cells can be suppressed even if the write and erase operations are executed repetitively. After the program and erase operations, whether the operations were properly executed can be judged simultaneously for all bit lines basing upon a change, after the pre-charge, of the potential at each bit line, without changing the column address. In the data rewrite oepration, the rewrite operation is not effected for a memory cell with the data once properly written, by changing the data in the data register.
摘要:
A shaped body of hydrogen absorbing alloy prepared by pressing a mixture of a hydrogen absorbing alloy powder A having a first particle-size distribution, a hydrogen absorbing alloy powder B having a second particle-size distribution and a binder C, the powder A being larger than the powder B in mean particle size, the mixture being at least 0.03 to not gerater than 0.50 in the mean particle size ratio r.sub.B /r.sub.A of the powder B to the powder A wherein r.sub.A and r.sub.B are the mean particle sizes of the respective powders A and B. The hydrogen absorbing alloy of the powder B is higher than the hydrogen absorbing alloy of the powder A in the rate of progress of pulverization resulting from absorption and desorption of hydrogen.