This paper proposes the implementation of digit-serial Canonical Signed-Digit (CSD) coefficient FIR filters which can be used as format conversion filters in place of the ones employed for the MPEG2 TM5 (test model 5). A canonical digit representation of signed numbers is used to reduce the complexities in multiply operations. Practical design guidelines of digit-serial CSD FIR filter are provi...

no abstract

Mating crosses in all possible combinations between 15 monoascosporic isolates ofDidymella rabiei (Ascomycotina, Dothideales), derived from diseased chickpea stems collected at a single location in Genesee, Idaho, were prepared on sterile chickpea stem pieces incubated on moist sterile filter papers in glass petri dishes for 5-6 weeks at 10 C or in nylon mesh bags placed on the soil surface out...

BACKGROUND Allelopathy (negative, plant-plant chemical interactions) has been largely studied as an autecological process, often assuming simplistic associations between pairs of isolated species. The growth inhibition of a species in filter paper bioassay enriched with a single chemical is commonly interpreted as evidence of an allelopathic interaction, but for some of these putative examples ...

order to obtain individual clones in a 96-well plate. For filter paper cloning, dilute cells are plated in large 150-mm dishes and grown until colonies contain 20–50 cells. Trypsin-treated bits of sterile filter paper are then placed on well-isolated colonies for several minutes until they detach, and the paper with some attached cells is transferred to a 96-well plate. Further details on cell ...

A new scheme for the implementation of programmable FIR digital filters with 100% operational efficiency is presented in this paper. The term 100% operational efficiency implies that no zero bits have to be inserted between successive in−put data words in order the filter input to be synchronized with the filter output. Both the input data and the filter out−put are in two’s complement LSB−firs...

Methods for verifying ballast water treatments in foreign vessels are needed to protect the Great Lakes from the discharge of live non-native organisms or pathogens. A prototype automated viability test system using fluorescein diacetate (FDA), a membrane permeable fluorogen, to differentiate live from dead bacteria and algae is described. The automated fluorescence intensity detection device (...

This paper gives the digit-serial DSP libraries used to implement the digit-serial DSP architecture for field programmable gate arrays (FPGAs) and compares schematic-based FPGA design with design based on logic synthesis for digit-serial DSP libraries. It describes the design of digit-serial addition/subtraction, multiplication and delay elements and indicates also how digit-serial FIR filter c...