The type of high luminosity, storage ring collider being studied by SLAC for a tau-charm factory will require high energy, low emittance sources of positrons and electrons suitable for filling the rings. Ideally, the fill time should be much shorter than the luminosity life-time of the rings. For the purpose of estimating the characteristics of the injection system, the maximum fill time is tak...

Highly efficient preconcentration is a crucial prerequisite to the identification of important protein biomarkers with extremely low abundance in target biofluids. In this work, poly(dimethylsiloxane) microchips integrated with 10 nm polycarbonate nanopore membranes were utilized as high-speed protein accumulators. Double-sided injection control of electrokinetic fluid flow in the sample channe...

The approximate number system (ANS) allows people to quickly but inaccurately enumerate large sets without counting. One popular account of the ANS is known as the accumulator model. This model posits that the ANS acts analogously to a graduated cylinder to which one "cup" is added for each item in the set, with set numerosity read from the "height" of the cylinder. Under this model, one would ...

1. ATP sulphurylases were partially purified (20-40-fold) from leaf tissue of Astragalus bisulcatus, Astragalus racemosus (selenium-accumulator species) and Astragalus hamosus and Astragalus sinicus (non-accumulator species). Activity was measured by sulphate-dependent PP(i)-ATP exchange. The enzymes were separated from pyrophosphatase and adenosine triphosphatase activities. The properties of ...

Text classification involves deciding whether or not a document is about a given topic. It is an important problem in machine learning, because automated text classifiers have enormous potential for application in information retrieval systems. It is also an interesting problem for cognitive science, because it involves real world human decision making with complicated stimuli. This paper devel...

The aluminum (Al) cation Al(3) (+) is highly rhizotoxic and is a major stress factor to plants on acid soils, which cover large areas of tropical and boreal regions. Many woody plant species are native to acid soils and are well adapted to high Al(3) (+) conditions. In tropical regions, both woody Al accumulator and non-Al accumulator plants occur, whereas in boreal regions woody plants are non...

Processing an image in the RGB color space, with a set of RGB values for each pixel is not the most efficient method. To speed up some processing steps many video compression and communication techniques use luminance/chrominance color spaces, such as YCrCb, making a mechanism for converting between formats necessary. Therefore, techniques which efficiently implement this conversion are desired...

the present sought to draw a comparison between model predictive control performance and two other controllers named simple pi and selective pi in controlling large-scale natural gas transport networks. a nonlinear dynamic model of representative gas pipeline was derived from pipeline governing rules and simulated in simulink® environment of matlab®. control schemes were designed to provide a s...

Most of all the algorithms in signal processing involve DA for computing the inner product of two vectors consisting of most of the computational workload. Because of which the DA is widely used in the signal processing algorithms. Using the adders and multipliers the evaluation of the inner product is done. Using DA these multipliers can be replaced for obtaining better performance by reducing...