摘要:
A technique for preventing unauthorized operations in a microprocessor system provided for inhibiting access to a memory by checking specific addresses and codes, includes storing main programs and predetermined specific codes in a first memory, the execution of the specific codes by a user being prohibited; storing user programs in a second memory; respectively writing and reading the main and user programs to and from the first and second memories with a CPU; receiving address information over an address bus into a first check circuit, connected between the CPU and the first and second memories; activating a first check signal in the first check circuit to inhibit access to the first memory when an access instruction to a predetermined prohibited address is supplied by the CPU; receiving data information including instruction codes over a data bus into a second check circuit, connected between the CPU and the first and second memories; activating a second check signal in the second check circuit when instruction codes of the user program are the specific codes; receiving the first and second check signals into an inhibit circuit; and inhibiting access to the first and second memories according to the first and second check signals.
摘要:
A desk-top type infrared radiation moisture measuring apparatus is of a type in which the moisture in a specimen is exposed to a measurement light easily absorbed into water and to at least one reference light not noticeably absorbed into water and calculation is performed to determine the moisture in the specimen on the basis of both the measurement light and the reference light, reflected from the specimen. The apparatus comprises a turntable on which the specimen is placed and which is exposed to both the measurement light and the reference light from above at a portion away from the center thereof, and a drive source for driving the turntable into rotation. The measurement is carried out while the turntable is being rotated.
摘要:
A method for manufacturing a fused cast refractory article including the steps of pouring a molten refractory material into a cavity of a mold including a casting sand held by a negative pressure applied through the sand and against a thermoplastic film which surrounds the mold cavity, casting and cooling off the refractory material, wherein the negative pressure is maintained after the casting. The mold includes an upper mold portion including a frame, a casting sand, and a thermoplastic film; a bottom mold portion including a frame, a casting sand and a thermoplastic film; and a cavity defined by the thermoplastic film between the upper and bottom mold portion and having an inlet opening.
摘要:
An X-ray control device is held in a constant position relative to an X-ray tube and an X-ray detector, while the X-ray tube is moved toward or away from the rotational scanning axis at which an object to be examined is located. The X-ray control device allows selection of a spot size and a tube voltage of the X-ray tube. The X-ray control device is controlled in synchronism with a shift mechanism. When the X-ray tube is close to the object, a smaller spot and a higher tube voltage than those when the X-ray tube is separated from the object are selected.
摘要:
A composition for the removal of nickel-platinum alloy metal, said composition being characterised by including 3-55 mass % of at least one kind selected from the group consisting of hydrochloric acid, hydrobromic acid, and nitric acid, 0.5-20 mass % of a chelating agent other than oxalic acid, 0.1-4 mass % of an anionic surfactant, and water; and also characterised by not including fluorine-containing compounds or hydrogen peroxide, and having a pH of 1 or less. Nickel-platinum alloy metal can be selectively removed without damaging silicon substrate material.
摘要:
An etching solution for titanium-based metals, tungsten-based metals, titanium/tungsten-based metals or their nitrides. The etching solution contains 10-40 mass % hydrogen peroxide, 0.1-15 mass % of an organic acid salt, and water.
摘要:
An activated carbon material having a BET specific surface area of 10 to 1,000 m2/g as measured by means of a nitrogen adsorption method, and the ratio of the height of the D peak (1,360 cm−1) of a Raman spectrum of the activated carbon material to that of the G peak (1,580 cm−1) of the Raman spectrum is 0.8 to 1.2. When the activated carbon material of the present invention is used as a polarizable electrode material of an electric double layer capacitor, high capacitance per electrode is attained without application of excessive voltage.
摘要:
A movable object maneuver method wherein a destination point is set; wherein a thrust value is calculated in real time which minimizes or maximizes a performance index associated with one or more state variables and thrust required for a movable object to reach the destination point and which takes into account non-linear conditions inherent to the movable object; and wherein the movable object is moved based on the calculated thrust value.
摘要:
A spring to ensure default opening is constituted by a single piano wire where a return spring with a larger coil diameter and a default spring with a smaller coil diameter are connected via a connection arm formed with a spring hook. The spring with a smaller coil diameter is inserted in the spring with a larger coil diameter thereby the springs are overlapped in an axial direction as a duplex-winding spring structure. Further, a magnetic sensor is provided in a position inside the both spring with a larger coil diameter and spring with a smaller coil diameter.
摘要:
The invention provides a throttle valve control apparatus provided with a throttle sensor which is in trouble at a low possibility and has a long service life, whereby an accurate output of a throttle opening degree can be obtained. The throttle valve control apparatus of an internal combustion engine has a throttle opening degree sensor constituted by an non-contact sensor using hole elements.