Probabilistic data structures are so popular in membership queries, network applications, and so on. Bloom Filter and Cuckoo Filter are two popular space efficient models that incorporate in set membership checking part of many important protocols. They are compact representation of data that use hash functions to randomize a set of items. Being able to store more elements while keeping a reaso...

In this paper we proposed an efficient structure for sampling rate conversion by rational factor of L/M, where L is upsampling factor and M is downsampling factor. In this method, the coefficient symmetry of the linear phase filter is used. In this way, the number of required multiplications per output sample is reduced. For implementation we use linear phase FIR filter. The symmetric FIR filte...

Pasture runoff can contribute to elevated concentrations of nutrients, solids, and bacteria in downstream waters. The objective of this study was to determine the effects of vegetative filter strip (VFS) length on concentrations and transport of nitrogen, phosphorus, solids and fecal coliform in runoff from plots treated with cattle manure. Three plots with dimensions of 2.4 × 30.5 m were used....

This paper presents an efficient architecture for FIR filter using multi hierarchy pipelining. By choosing inner clock frequency several times more than the input sampling frequency multiply and accumulate components can be shared and hence the area and delay are optimized. An N tap FIR filter can be divided into N/M groups and two hierarchies of pipelining stages are inserted between N/M group...

The feature selection allows to choose P features among M (P < M) and thus to reduce the representation space. This process gets more and more useful because of the databases size increases. Therefore we propose a method based on preferences aggregation. It is an hybrid method that lies filter and wrapper approaches.

Recently a method in FIR filter design using cosine modulation was proposed. Given a prototype M -th band lowpass filter with cutoff frequency at π M , one can obtain a new filter with comparable frequency characteristics with rational cutoff frequency. In this paper, we extend the theory to the case of arbitrary cutoff frequency. The resulting method is corresponding to finding the equivalent ...

The feature selection allows to choose P features among M (P<M) and thus to reduce the representation space of data. This process is increasingly useful because of the databases size increase. Therefore we propose a method based on preferences aggregation. It is an hybrid method between filter and wrapper approaches.

ROSE, ROBERT E. (Massachusetts Department of Public Health, Amherst), AND WARREN LITSKY. Enrichment procedure for use with the membrane filter for isolation and enumeration of fecal streptococci in water. Appl. Microbiol. 13:106-108. 1965.-By the use of PYC enrichment medium, the recovery of fecal streptococci from river water has been increased more than twofold over that of M-Enterococcus Aga...

A new simplified method for particle size estimation of radioactive aerosols was proposed for air monitoring. It does not need any new instruments but a traditional aerosol sampling device with a multistage filter system. The method is based on the particle size dependency of penetration for air filter. Decontamination factor data measured in each filter stage is inversed to a size distribution...