Flip-ops are one of the most power-consuming components of digital circuits. Even when there is no activity at their inputs, the mere triggering of the clock produces a signiicant waste of energy. This paper presents some techniques to reduce power consumption by selectively deactivating the clock when ip-ops do not have to change their value. Several ip-op structures are proposed and criteria ...

Pectic polysaccharides containing apiose, xylose, and uronic acids are excellent candidates for boron fixation. Duckweeds the fastest-growing angiosperms that can absorb diverse metals contaminants from water have high pectin content in their cell walls. Therefore, these plants be considered (B) accumulators. This work aimed to investigate relationship between B assimilation capacity with apios...

Plants provide long-term and sustainable solutions to mitigate particulate matter (PM) pollution in urban environments. We evaluated total, fine, coarse large particle trapping abilities of an equal number common trees (Carica papaya, Citrus limon, Moringa oleifera, Ozoroa paniculosa, Peltophorum africanum, Psidium guajava) herbaceous species (Argemone ochroleuca, Catharanthus roseus, Gomphocar...

The so-called hyperaccumulator plants are capable of storing hundred or thousand times bigger quantities heavy metals than normal plants, which makes hyperaccumulators very useful in fields such as phytoremediation and phytomining. Among these there many serpentinophytes, i.e., that grow exclusively on ultramafic rocks produce soils with a great proportion metals. Even though multiple classific...

In this paper, we consider weighted nonbinary repeat multiple-accumulate (WNRMA) code ensembles obtained from the serial concatenation of a nonbinary rate-1/n repeat code and the cascade of L ≥ 1 accumulators, where each encoder is followed by a nonbinary random weighter. The WNRMA codes are assumed to be iteratively decoded using the turbo principle with maximum a posteriori constituent decode...

We introduce the notion of a dynamic accumulator. An accumulator scheme allows one to hash a large set of inputs into one short value, such that there is a short proof that a given input was incorporated into this value. A dynamic accumulator allows one to dynamically add and delete a value, such that the cost of an add or delete is independent of the number of accumulated values. We provide a ...

This paper considers a network of stochastic evidence accumulators, each represented by a driftdiffusion model accruing evidence towards a decision in continuous time by observing a noisy signal and by exchanging information with other units according to a fixed communication graph. We bring into focus the relationship between the location of each unit in the communication graph and its certain...

Redactable signature schemes (RSS) permit to remove parts from signed documents, while the signature remains valid. Some RSSs for trees allow to redact non-leaves. Then, new edges have to be added to the tree to preserve it’s structure. This alters the position of the nodes’ children and may alter the semantic meaning encoded into the tree’s structure. We propose an extended security model, whe...