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Articles 31 - 33 of 33
Full-Text Articles in Engineering
Practical Determination Of Efficiency Of Electrostatic Precipitators, João F. Gomes
Practical Determination Of Efficiency Of Electrostatic Precipitators, João F. Gomes
João F Gomes
Electrostatic precipitators are one of the most efficient particulate pollution control equipments used mainly for the treatment of gaseous effluents at high flow rates. Consequently electrostatic precipitators are widely used in thermal power plants, cement plants and pulp mills. Apart from a high efficiency other advantages are related with the fact that this type of equipment has a considerable low payback time in industrial plants where the particulate recovered from the gases has commercial value and can be recycled within the industrial process itself or even sold to other industrial companies. Where sulphate (Kraft) pulp mills are concerned an electrostatic …
Confirmation Of Conjugation Processes During Tnt Metabolism By Axenic Plant Roots, R. Bhadra, D. G. Wayment, J. B. Hughes, Jacqueline V. Shanks
Confirmation Of Conjugation Processes During Tnt Metabolism By Axenic Plant Roots, R. Bhadra, D. G. Wayment, J. B. Hughes, Jacqueline V. Shanks
Jacqueline V. Shanks
This paper examines processes in plants for the formation of fate products of TNT beyond its aminated reduction products, 2-amino-4,6-dinitrotoluene and 4-amino-2,6- dinitrotoluene. TNT metabolites were isolated and characterized in combination with temporal analyses of product profiles and 14C distribution, in microbe-free, axenic root cultures of Catharanthus roseus. Four unique TNTderived compounds were isolated. Using evidence from 1H NMR, mass spectroscopy, HPLC, acid hydrolysis, and enzymatic hydrolysis with â-glucuronidase and â-glucosidase, they were established as conjugates formed by reactions of the amine groups of 2-amino-4,6-dinitrotoluene and 4-amino-2,6-dinitrotoluene. From the mass spectral evidence, at least a six-carbon unit from the plant …
Practical Hints For The Layout And Construction Of 10,000 M3 Circular Dams, Terry Babbington, J S. Addison
Practical Hints For The Layout And Construction Of 10,000 M3 Circular Dams, Terry Babbington, J S. Addison
Bulletins 4000 -
These notes and illustrations have been compiled to assist earthmovers in the construction of circular excavated earth tank dams, with pipe inlets. Construction techniques tend to evolve over time, so the methods described in this publication will not be definitive, but, they may improve efficiency of construction in the interim. Although the example used in these notes refers to 10,000 m3 dams, the construction techniques, using a bulldozer, described here equally apply to dams of any volume of similar design. Only dimensions will vary. earthmovers using a scarper together with a bulldozer should be able to extract useful information from …