In this paper we analyze the power consumption of SRAM memories and demonstrate that the full functional pre-charge activity is not necessary during test because of the predictable addressing sequence. We exploit this observation in order to minimize power dissipation during test by eliminating the unnecessary power consumption associated with the pre-charge activity. This is achieved through a...

Despite recent advances, battery life continues to be a limiting factor in mobile multimedia systems. Significant energy savings can be achieved by adapting systems at runtime to match the execution requirements of different tasks. This paper introduces an on-line dynamic voltage/frequency scaling (DVS) feedback technique that reduces voltage and frequency to match the playback rate. A PI contr...

Fault tolerance techniques have been traditionally used for specific applications such as space, avionic, or nuclear where the reliability is of utmost importance. Moreover, nowadays the reliability of nanoscale CMOS processes is reduced, and the power optimization goes beyond the standard worst-case boundaries. As a consequence, fault tolerance became the important factor also for the main str...

A technique to reduce the power consumption of the issue logic of superscalar processors is presented. We have evaluated the power consumption of diierent parts of the architecture through a detailed cycle-by-cycle simulation. The results show that one of the principal power consumption's factor in a superscalar processor is the hardware devoted to extract parallelism from applications. We prop...

Glutamate in neurons is an important excitatory neurotransmitter, but it also is a key metabolite. We investigated how glutamate in a neural tissue is protected from catabolism. Flux analysis using (13)C-labeled fuels revealed that retinas use activities of the malate aspartate shuttle to protect >98% of their glutamate from oxidation in mitochondria. Isolation of glutamate from the oxidative p...

This paper proposes three wake-up approaches to reduce the battery power consumption for a mobile multimedia handset. These approaches switch the system into the sleep mode when the memory queue for the arriving packets is empty. Depending on the approaches, various wake-up mechanisms are considered. The threshold approach switches on the system when the number of packets in the memory queue is...

Introduction Reducing power consumption in embedded products that use FPGAs is increasingly important, particularly for battery-powered applications or to reduce heat or cost. You can use parallel algorithms to exploit the parallel architecture of FPGA devices to accomplish more work per clock cycle, allowing you to lower the clock frequency. High-level development tools such as SOPC Builder an...

1. Kidney-cortex slices incubated with pyruvate formed glucose and lactate in relatively large and approximately equimolar quantities. The formation of these products involves two exclusively cytoplasmic NADH(2)-requiring reductions, catalysed by lactate dehydrogenase and triose phosphate dehydrogenase. From the rates of glucose and lactate formation it can be calculated that over 1000mu-moles ...