摘要:
Clusters of processors are interconnected as an emulation engine such that processors share input and data stacks, and the setup and storing of results are done in parallel, but the output of one evaluation unit is connected to the input of the next evaluation unit. A set of ‘cascade’ connections provides access to the intermediate values. By tapping intermediate values from one processor, and feeding them to the next, a significant emulation speedup is achieved.
摘要:
A method of speeding up computer simulation/emulation of circuit logic designs. The method converts an original circuit logic design (intended for hardware packaging) to a different circuit form before starting computer simulation/emulation. The converted circuit form provides the same simulation/emulation results as would have been obtained with the original logic circuit. The method operates with multi-phase logic designs comprised of gate circuits using multi-phase clocking of the type commonly packaged in semiconductor chips. The method converts such multi-phase logic designs into a single-phase circuit form, which is presented to the computer for simulation/emulation that provides the same results as the multi-phase logic design but at a much faster speed. The method is presented with a multi-phase logic design containing flip-flops as the internal storage circuits. The method effectively retains the storage circuits found in a multi-phase logic design and replicates its logic blocks providing multiple phase outputs. Then the storage circuits are reconnected to the original and replicated logic blocks in a manner that enables a single clock cycle to operate the converted logic design to simulate/emulate the same results in the storage circuits, as if the original multi-phase logic design were being simulated or emulated, but at a much faster speed.
摘要:
An occupant restraint system including a confinement with a collapsed inoperative condition and an expanded operative condition for restraining movement of an occupant of a vehicle during a collision of the vehicle, a fluid supply, and a diffuser for directing gas from the fluid supply into the confinement. The fluid supply includes a pressure vessel having a chamber for housing a gas generating material and an oxidizing gas. The gas generating material is combusted upon the occurrence of the collision of the vehicle to generate gas. The oxidizing gas is pressurized and reacts with the generated gas to augment the combustion process and thereby reduce the toxicity of the generated gas, and is present in a sufficient quantity to cool the generated gas to an acceptable temperature. A shear disk, seals a passage between the chamber in the pressure vessel and the diffuser. This disk is ruptured by a shear piston propelled by the pressure increase occurring upon combustion of the gas generating material.
摘要:
Carbon black with an OAN, measured on the beaded carbon black, of less than 120 ml/100 g. A process for the preparation of the carbon black is described, wherein a salt solution is converted into an aerosol and this is then introduced into the carbon black formation zone. The carbon black can be used in inks, paints, lacquers, printing inks and ink-jet inks, and for coloring plastics.
摘要:
Process for the production of doped metal oxide particles, wherein the doping component is present on the surface in the form of domains, wherein in a first reaction zone, an oxidizable and/or - hydrolysable metal compound as dopant together with an atomization gas is atomised into a flow of metal oxide particles in a carrier gas, wherein the mass flow of the metal oxide particles und - the mass flow of the dopant are selected such that the doped metal oxide particles contain 10 ppm to 10 wt. % of the doping component, where the quantity of dopant to be introduced is calculated as the corresponding oxide, and wherein the temperature in the first reaction zone is - selected such that it is below the boiling temperature of the dopant under the prevailing reaction conditions, and then, in a second reaction zone, the flow from the first - reaction zone and optionally at least as much oxygen and/or steam are - introduced that the quantity of oxygen and/or steam at least suffices completely to convert the dopant, wherein the temperature is from 300 to 2000° C., - preferably 500 to 1000° C., and the reaction mixture is then cooled or allowed to cool and the doped metal oxide particles are separated from the gaseous substances.
摘要:
A software driven emulator in which the stored emulation program for a processor module is compiled to include a code bit or bits in the emulation instruction step sequence that is decoded as main data memory disable command. Thus, once in each emulation program cycle, the memory controller disables the main data memories on the module, and allows the maintenance bus to read or write data to these memories.
摘要:
In an emulation system, the emulation processors are grouped in clusters which are capable of interchanging information between both input memory stacks and data memory stacks associated with each of the processor elements. This capability significantly enhances the performance of emulation engines and, in particular, it provides a mechanism for emulation of memory array elements in computer systems in a more efficient and faster manner.
摘要:
A cutting tool arrangement for a nibbler, wherein a support shaft with a cutting head is arranged for reciprocating movement relatively to a die, has the support shaft including an elongated portion, a narrowing portion and an end portion. The cutting head formed as a sleeve-shaped element surrounds the end portion of the shaft and a lower part of the narrowing portion of the shaft and is soldered thereto to prevent fatigue concentration stresses in a transition zone between the narrowing portion of the shaft and the cutting head.
摘要:
A viscous drive mechanism, especially for an automotive cooling fan, is provided in which the input member is flexibly mounted to the input drive shaft in a manner permitting it to be moved axially under the influence of a thermostatic device to vary the working space gap between the impeller and the output drive member, thereby varying the output speed of the drive according to a given temperature variation.