摘要:
A mold with an increased compression strength and a good collapsibility is prepared with a good efficiency by mixing refractory particles with a binder material comprising a caustic alkali-neutralized product of a copolymer containing a carboxyl group and calcium hydroxide, thereby preparing molding materials, filling the molding materials around a pattern, and blowing CO.sub.2 gas into the mold sand, thereby hardening the molding materials. Polyvinyl alcohol, calcium oxide, at least one hydroxide of zinc, aluminum, barium, magnesium, and iron, SBR latex, etc. can be added to the binder material, when desired.
摘要:
In a multiprocessor system with a plurality of Operating Systems (OSs) running thereon, each of the plurality of OSs has a device driver which accesses devices for shared use among the OSs. Each device driver has a task interface part which performs inter-Operating System communication at the Operating System (OS) kernel layer. A first device driver on one of the plurality of OSs includes a device interface part which accesses a device to be operated by a second device driver on a second one of the plurality of OSs. The task interface part of the second device driver receives a device access request from a task running on the second one of the plurality of OSs, adds processing request data to a request queue list of the first device driver, and returns a device access result to the task upon receipt of a notification from the device interface part.
摘要:
Upon receiving debugging program activation instructions sent from a communication port (1), debugging program activation instruction distribution units (61 and 71) distribute the received debugging program activation instructions to execution units designated by these activation instructions. Debugging program activation units (62 and 72) are provided for each execution unit (A and B) and, based on the activation instructions distributed by the activation instruction distribution units (61 and 71), activate debugging programs (63 and 73) on the execution units designated by these activation instructions.
摘要:
There is provided a trace/failure observation system which is capable of comprehensive collection of information that is needed for checking a desired operation in a system or the like where the amount of information to be observed is large, and which allows easy analysis of the desired operation. The system includes, in a system LSI to be subjected to trace/failure observation: an event detecting means for observing behavior of a portion to be observed; a first data reducing means for performing observation data reduction processing so that observation data from the event detecting means has an amount of information processable to a second data reducing means; and the second data reducing means for performing one or more steps of observation data reduction processing.
摘要:
Provided is the access control system for controlling an access on a task basis without modifying a device side to be accessed and without applying a task ID at each access to a device.The access filter system for controlling an access between devices mounted on an electronic device, which comprises the access control unit for applying a unique device key set for each device as a right to access the device on a basis of a task operable on the electronic device and determining whether to allow an access to the device according to whether an access request task which requests an access to the device has the device key.
摘要:
The invention provides a program conversion apparatus which performs parallelization for a multi-thread microprocessor on an intermediate program level. A parallelization apparatus of the program conversion apparatus includes a fork spot determination section, a register allocation section and an instruction reordering section. The fork spot determination section determines a fork spot and a fork system based on a result of a register allocation trial performed by the register allocation section, the number of spots at which memory data dependence is present, and branching probabilities and a data dependence occurrence frequency obtained from a profile information file. The instruction reordering section reorders instructions preceding to and succeeding the FORK instruction in accordance with the determination.
摘要:
A slide structure comprises a roll shaft and a roll bearing. A whole circumference of the roll shaft is made of a sintered ceramics body. A sliding surface of the roll bearing is constructed by inserting a cermet into a carbon-carbon reinforcing graphite member. A continuous hot dipping apparatus has a roll supported and rotated in a molten metal bath. A sliding surface of the roll shaft and the roll bearing employs the slide structure. The corrosion resistivity and the wearing resistivity can be improved and a long service life can be attained. The slide structure comprised of the roll shaft and the roll bearing can be smoothly rotated by decreasing the friction coefficient of the slide structure.
摘要:
A casting method for manufacturing various types of ceramics products having an intricate configuration and a partly diversified wall thickness, such as compressor scroll blade and a screw rotor, by casting a slurry including ceramics, etc. in a mold, includes an arrangement wherein the mold is partly or entirely formed of a flexible gel material which can be melted by heating at a temperature lower than the boiling point of the dispersion medium, whereby the stresses generated when molding the product can be mitigated. Thus, the molding of a product having a high level of dimensional accuracy can be carried out with ease.