摘要:
A plate-like container is for containing a two part composition consisting of two components with the components isolated in such a manner that they are not mixed with each other. The two components are preserved in an isolated relation to each other prior to use, and if intended to be used, they are mixed together and then placed into service. The components are jellied by addition of a viscosity modified thereinto.
摘要:
Poly(allylamine salts) of high polymerization degree is obtained in high yield by the polymerization of monoallylamine salt with a specified radical-polymerization initiator having in the molecule an azo group. Various poly(allylamine) derivatives are obtained by reacting said poly(allylamine salt) with acrylic compounds, or formic acid and formaldehyde.
摘要:
A method of testing a successive comparison type analog/digital converter which incorporates a voltage comparator, a register for successive comparison and a digital/analog converter. A reference digital signal is inputted to the incorporated digital/analog comparator to be converted into an analog signal, while a digital signal corresponding to the reference digital signal is inputted to an externally provided reference digital/analog converter to be converted into an analog signal. Both analog signals thus produced are compared with each other through the incorporated voltage comparator to thereby determine conversion accuracy. A successive comparison type analog/digital converter suited for the test includes further a change-over switch for introducing the externally supplied digital signal to the incorporated digital/analog converter and a changeover switch for leading outwardly the output signal from the voltage comparator.
摘要:
A first error amplification circuit amplifies a difference between a predetermined reference voltage and a first detection voltage that corresponds to the output voltage of a DC/DC converter, so as to generate a second voltage. A voltage level judgment circuit generates a third voltage having a discrete level that corresponds to the amplitude of a first voltage. A multiplying/dividing circuit multiplies the first voltage by the second voltage, and divides the resulting product by the third voltage, so as to generate a fourth voltage. A comparator compares the fourth voltage with a second detection voltage that corresponds to a current that flows through a switching transistor included in the DC/DC comparator. A driving circuit turns on the switching transistor for each predetermined period, and turns off the switching transistor according to the output of the comparator every time the second detection voltage becomes higher than the fourth voltage.
摘要:
There is provided a high-purity carbon nanotube, which can be produced with simple purification by causing graphite to be hardly contained in crude soot obtained immediately after being synthesized by arc-discharge, and a method for producing the same. Soot containing carbon nanotubes produced by arc-discharge using an anode which contains amorphous carbon as a main component is heated at a temperature of not lower than 350° C. to be burned and oxidized, immersed in an acid, heated at a temperature, which is not lower than the heating temperature in the previous burning and oxidation and which is not lower than 500° C., to be burned and oxidized, and immersed in an acid again.
摘要:
The present invention is to provide a thermo-valve which can be operated with no unnecessary work to fill fluid easily and without fail into a circuit having the fluid flow therethrough at the time of a high temperature range. The thermo-valve comprises a valve housing 21, and a center guide shaft 27 movable to assume a valve movement limitation position GP1 in which a valve member 31 is retained to a second operation position BP2 to open a specific port, and a valve movement allowance position in which the valve member 31 is allowed to displace, the center guide shaft 27 and the valve housing 21 allowing a bimetal ring 51 to be disposed therebetween, and the bimetal ring being deformed to retain the center guide shaft 27 to the valve movement limitation position GP1 at the initial stage until the temperature of oil in the valve housing 21 firstly reaches the high temperature range, and to release the center guide shaft 27 from the valve movement limitation position GP1 when the temperature of the oil in the valve housing 21 reaches the high temperature range.
摘要:
An optical head device (optical head) for a multi-layered optical recording medium has a focus control mechanism that makes use of astigmatism. The focus control mechanism has a sensor lens that includes a cylindrical lens. The focus control mechanism causes a light beam having passed through the sensor lens to have astigmatism, thereby being focused linearly in the Y direction on a front focal line located closer to the sensor lens and focused linearly in the X direction at a rear focal line located farther therefrom. The optical head also includes a photodetector which is disposed between the front focal line and the rear focal line to detect a focal position from the shape of a light beam. At the position of the front focal line, a shield plate with a window portion is disposed. The window portion has a size so as to allow the focal line to pass therethrough and shield stray light reflected from an unfocused recording layer.
摘要:
A disk device is presented that includes a drive motor which has a rotatable hub fitted with a recording medium and rotates the recording medium, and a disk-shaped clamper attached to the hub to hold the recording medium. The clamper has a center aperture formed on a central axis of rotation of the drive motor and at least one positioning hole eccentric to the central axis of rotation. The clamper is fixed to the hub by a fixing screw driven into the hub through the center aperture. The hub has a support surface opposed to the clamper and an annular engaging groove formed in the support surface to be coaxial with the central axis of rotation and opposed to the positioning hole, the engaging groove being configured to be engaged with a fixing pin which is passed through the positioning hole.
摘要:
According to one embodiment, a wireless tag reader includes a receiver, a memory, a reader, and a transmitter. The receiver configured to receive an instruction from a host. The memory configured to store a dummy identifier, when the receiver received a set instruction for setting the dummy identifier from the host. The reader configured to read information stored in a wireless tag, when the receiver received a read instruction from the host. The transmitter configured to add the dummy identifier to the information, and to transmit the information, to which the dummy identifier is added, to the host.
摘要:
A platen roller is provided for conveying a thermally active adhesive sheet having a recordable surface formed on one side of a sheet-like substrate and a thermally active adhesive layer formed on the other side of the sheet-like substrate. The platen roller comprises a roller portion containing a compound suitable for use as a solid plasticizer in the thermally active adhesive layer of the thermally active adhesive sheet.