A plasma based electron beam source apparatus is described which creates a plasma with two distinct density regions separated by a transition which is shorter than the plasma skin depth kp −1 of either region. This sharp density modulation is achieved by using a perforated stainless steel screen to filter half of a diffusing plasma column. A simple physical model predicts that the length of the...

Nuclear proteins modified by mono or poly ADP-ribosylation were selectively isolated and purified by covalent chromatography on a dihydroxyboryl polyacrylamide bead column that specifically interacts with cis-diol-containing compounds. From rat liver nuclei that had been incubated with NAD+, histones and some nonhistone proteins were extracted with 0.25 M HCl. Approximately 60% of the ADP-ribos...

The purpose of this article is to give a bijective proof for Stanley’s hook-content formula [15, Theorem 15.3] for a certain plane partition generating function. In order to be able to state the formula we have to recall some basic notions from partition theory. A partition is a sequence = ( 1; 2; : : : ; r) with 1 2 r > 0, for some r. The Ferrers diagram of is an array of cells with r leftjust...

The enzymatic reaction of soybean oil (SBO) triacylglycerides (TAGs) with ethyl ferulate (EF) produces the product feruloylated acylglycerols, alled SoyScreenTM as well as by-product fatty acid ethyl esters (FAEEs). Both the unreacted EF as well as the by-product FAEEs must be removed rom the mixture before the feruloylated acylglycerols can be used as natural sunscreens and/or antioxidants. Th...

We present a novel technique that couples isotachophoresis (ITP) with affinity chromatography (AC) to achieve rapid, selective purification with high column utilization. ITP simultaneously preconcentrates an analyte and purifies it, based on differences in mobility of sample components, excluding species that may foul or compete with the target at the affinity substrate. ITP preconcentration ac...

Content Based Image Retrieval (CBIR) is the application of computer vision techniques used to retrieve digital images from a large database. In this paper we have used the concept of sectorization of the plane formed form DCT transformed image. We have proposed an approach which involves augmentation of zero and highest row components of column-wise DCT transformed image for generating the feat...

An ad hoc network can be set up by a number of units without the need of any permanent infrastructure. Two units establish a communication link, if the channel quality is sufficiently high. As not all pairs of units can establish direct links, the traffic between two units may have to be relayed through other units. This is known as the multi-hop functionality. In military command and control s...

In this brief, we present a fast algorithm for computing length-q × 2 discrete Fourier transforms (DFT). The algorithm divides a DFT of size-N = q × 2 decimation in frequency into one length-N/2 DFT and two length-N/4 DFTs. The length-N/2 sub-DFT is recursively decomposed decimation in frequency, and the two size-N/4 sub-DFTs are transformed into two dimension and the terms with the same rotati...

The presence of dense submerged vegetation alters mixing characteristics in open channel flows as they cause differential velocities inside and above canopies. prediction models for longitudinal the canopies often use drag coefficient to represent canopy, which limits usability when canopy properties are not fully understood. Here, attempts were made present a methodology can be used deriving d...

Evaluation of the Removal Efficiency of Perfluoroalkyl Substances in Drinking Water Sophie Englund Per-and polyfluoroalkyl substances (PFASs) are chemicals that have been used for over 50 years. They are both hydrophobic and hydrophilic, which make them useful in a wide range of products, both in the domestic and industrial market. Recently, the global attention on PFASs has increased due to th...