An accumulator based on bilinear pairings was proposed at CT-RSA’05. In this paper, we first demonstrate that the security model proposed by Lan Nguyen does lead to a cryptographic accumulator which is not collision resistant. Second we show that we can provide collision-resistance by updating the adversary model appropriately. Finally, we propose an improvement on Nguyen’s identity escrow sche...

in this note first we define the notions of fuzzy positive implicativehyper bck-ideals of types 1,2,3 and 4. then we prove some theorems whichcharacterize the above notions according to the level subsets. also we obtainthe relationships among these notions, fuzzy (strong, weak, reflexive) hyperbck-ideals and fuzzy positive implicative hyper bck-ideals of types 5,6,7and 8. then, we define the no...

A dynamic universal accumulator is an accumulator that allows one to efficiently compute both membership and nonmembership witnesses in a dynamic way. It was first defined and instantiated by Li et al., based on the Strong RSA problem, building on the dynamic accumulator of Camenisch and Lysyanskaya. We revisit their construction and show that it does not provide efficient witness computation i...

The computational architecture that enables the flexible coupling between otherwise independent eye and hand effector systems is not understood. By using a drift diffusion framework, in which variability of the reaction time (RT) distribution scales with mean RT, we tested the ability of a common stochastic accumulator to explain eye-hand coordination. Using a combination of behavior, computati...

A new architecture for decimating finite impulse response filters is proposed. The architecture is based on using a number of accumulators; each one accumulates a partial sum corresponding to a unique set of D filter coefficients into the filter output, where D is the decimation factor. In the new decimating filter, the accumulated result of an accumulator is passed to another accumulator once ...

The rotary compressor accumulator with pre-charged oil has already been developed and the concept published.[I] Compared to the conventional accumulator, the new accumulator differentiates itself from the conventional one in that the new accumulator is pre-charged with a pre-determined amount of oil. It offers advantages as a conventional accumulator attached to rotary compressor. This paper no...

An accumulator scheme, introduced be Benaloh and de Mare [BdM94] and further studied by Barić and Pfitzmann [BP97], is an algorithm that allows to hash a large set of inputs into one short value, called the accumulator, such that there is a short witness that a given input was incorporated into the accumulator. We put forward the notion of dynamic accumulators, i.e., a method that allows to dyn...

Accumulator models have a relatively long history of application to choice and response time, especially for binary choice. When the number of response options is greater than two, these models usually posit one accumulator per response option. Here, we propose a theoretical framework in which there is one accumulator for every ordered pairwise difference between choices, each quantifying the e...

Cesium (Cs) is a soil contaminant and toxic to the ecosystem, especially plant species. In this study, we have assessed potential of halophyte Sesuvium portulacastrum for its Cs tolerance accumulation. Thirty days old S. plants were subjected different concentrations (0, 5, 10, 25, 50, 150 mg·L−1 Cs) using cesium chloride. The biomass photosynthetic pigments not affected up 25 treatment while s...

The assessment of total hydrocarbon soil (THC) content Rhizophora mangle and Nypa fruticans was investigated. Plant part the studied plants (leaves, root, stem) were collected from forest. In each study area a 20 x 20m plot delineated. Within 10 trees sampled randomly using stratified systematic analyzed sampling method. For analysis, fresh samples insitu with augur weighed placed...