Three types of commonly used commercial treatment processes were investigated for the removal of volatile organic compounds (VOCs) from hazardous waste: thin-film evaporation, steam stripping, and distillation. These Unit operations were evaluated for their potential to control emissions from hazardous waste treatment, storage and disposal facilities (TSDFs) by reducing waste VOC content. One-d...

In the normal mode of operation, the TRIUMF cyclotron accelerates H ions to produce 500 MeV proton beams of 160 A with 4 nsec pulses separated by 43 nsec. A proposed experiment ( ! e conversion) requires a 500 MeV beam with 100-200 nsec pulses separated by 1-2 sec with an average intensity of 200 A. Two methods have been investigated to achieve this time structure. Both incorporate a pulsed ele...

abstract in this study we present successful management of an inflamed branchial cyst by stripping the inner lining thus providing a safe and definitive treatment. we believe that this is the first report of this technique in the literature.

This article focuses on prevention of possible exposure to chemical agents, when opening, entering, and stripping freight containers. The container purging process is investigated using tracer gas measurements and numerical airflow simulations. Three different container ventilation conditions are studied, namely natural, mixed mode, and forced ventilation. The tests conducted allow purging time...

The high mass transport caused by ultrasonic radiation in the preconcentration of trace metal species in anodic stripping voltammetry (ASV), leads to an order of magnitude enhancement in sensitivity. A Nafion-coated mercury thin-film working electrode is placed in a specially designed small-volume sonovoltammetric cell. The preparation and curing procedure for the Nafion film on a glassy carbon...

The electroanalytical technique Absence of Gradients and Nernstian Equilibrium Stripping (AGNES) has been extended by applying stripping chronopotentiometry (SCP) as the re-oxidation stage in the determination of the free concentration of Zn(2+), Cd(2+) and Pb(2+). This new approach, called AGNES-SCP, has been implemented with screen-printed electrodes (SPE) and the standard Hanging Mercury Dro...

Most of the globular clusters in the main body of the Galactic halo were formed almost simultaneously. However, globular cluster formation in dwarf spheroidal galaxies appears to have extended over a significant fraction of a Hubble time. This suggests that the factors which suppressed late-time formation of globulars in the main body of the Galactic halo were not operative in dwarf spheroidal ...