摘要:
A method is disclosed for purifying aluminum nitride produced by carbothermal reaction of aluminum oxide, carbon and nitrogen. Precursor pellets including aluminum oxide and carbon are exposed to nitrogen under conditions sufficient to carbothermally produce aluminum oxide, thereby producing aluminum nitride pellets having surface portions relatively rich in thermal conductivity-lowering and color-causing impurities compared to core portions of the aluminum nitride pellets. Significant amounts of the surface portions are thereafter removed to thereby significantly increase the purity of the aluminum nitride pellets.
摘要:
By supplying gaseous nitrogen throughout a discrete aliquot of a preferably pelletized mixture of aluminum oxide, carbon and, optionally, calcium oxide during the carbothermal reduction thereof to aluminum nitride and continuously removing gaseous reaction products therefrom, a high quality aluminum nitride is produced. One means of supplying gaseous nitrogen to the mixture of solid reactants is a perforated tray having a hollowed-out bottom. Gaseous nitrogen supplied to the hollowed-out portion flows through the perforations and throughout solid reactants contained in the tray. The carbon may be alternatively supplied, in whole or in part, as a gaseous reactant.
摘要:
A reactor for carbothermal reduction is disclosed. By supplying gaseous nitrogen throughout a discrete aliquot of a preferably pelletized mixture of aluminum oxide, carbon and, optionally, calcium oxide during the carbothermal reduction thereof to aluminum nitride and continuously removing gaseous reaction products therefrom, a high quality aluminum nitride is produced. One means of supplying gaseous nitrogen to the mixture of solid reactants is a perforated tray having a hollowed-out bottom. Gaseous nitrogen supplied to the hollowed-out portion flows through the perforations and throughout solid reactants contained in the tray. The carbon may be alternatively supplied, in whole or in part, as a gaseous reactant.
摘要:
The present invention provides in a method of treating starch, comprising the steps of (1) contacting starch with water to form a slurry and (2) mechanically removing said water from said starch slurry; the improvement comprising incorporating a dewatering composition comprising a dioctyl sulfosuccinate salt and a water miscible polyol into said starch slurry in an amount effective to decrease the water content of the resulting starch cake upon conclusion of the mechanical dewatering step.
摘要:
Systems and methods for history based pipelined branch prediction. In one example, access to prediction information to predict a plurality of branches within an instruction block is initiated in a same clock cycle of the computer processor as a fetch of the instruction block. The prediction information may be available to the predictor not later than a clock cycle of the computer processor in which the plurality of branches are decoded.
摘要:
Methods for processing more securely. Embodiments provide effective and efficient mechanisms for reducing APIC interference with accesses to SMRAM, where enhanced SMM code implementing these mechanisms effectively reduces APIC attacks and increases the security of proprietary, confidential or otherwise secure data stored in SMRAM.
摘要:
Systems and methods for history based pipelined branch prediction. In one embodiment, access to prediction information to predict a plurality of branches within an instruction block is initiated in a same clock cycle of the computer processor as a fetch of the instruction block. The prediction information may be available to the predictor not later than a clock cycle of the computer processor in which the plurality of branches are decoded.
摘要:
Systems and methods for history based pipelined branch prediction. In one embodiment, access to prediction information to predict a plurality of branches within an instruction block is initiated in a same clock cycle of the computer processor as a fetch of the instruction block. The prediction information may be available to the predictor not later than a clock cycle of the computer processor in which the plurality of branches are decoded.
摘要:
A translating software emulator designed for converting code from a legacy system to a target system and fully preserving the synchronous exception state while still allowing for full and aggressive optimization in the translation. A user application is translated to a target system using full optimization techniques. The translation may be done dynamically by an emulator emulating the legacy system on the target system, or the translation may be a static translation or a compilation, fully generating a new executable program operable on the target system. The invention recovers from the exception properly by restoring the target machine state to the machine state expected by the legacy system. This recovery is done by using an exception delivery mechanism to restore the machine state of the target system before executing the exception handling code. The restoration of the machine state is done by executing a recovery block generated by the translation that modifies the machine state to match the legacy machine state.
摘要:
A translating software emulator designed for converting code from a legacy system to a target system and fully preserving the synchronous exception state while still allowing for full and aggressive optimization in the translation. A user application is translated to a target system using full optimization techniques. The translation may be done dynamically by an emulator emulating the legacy system on the target system, or the translation may be a static translation or a compilation, fully generating a new executable program operable on the target system. The invention recovers from the exception properly by restoring the target machine state to the machine state expected by the legacy system. This recovery is done by using an exception delivery mechanism to restore the machine state of the target system before executing the exception handling code. The restoration of the machine state is done by executing a recovery block generated by the translation that modifies the machine state to match the legacy machine state.