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BY GEORGE, prof Gottfried's Got it!!
I don't know how, but Gottfried's done it again, topping his previous masterpieces with this, the third work in a collection of James Joyce analyses. Hey literary world, Roy Gottfried is here, a force to be reckoned with! ... Read more

Book Description
This digital document is a journal article from Chemical Engineering Journal, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
The reaction kinetics of the catalytic combustion of methyl-ethyl ketone (MEK) in diluted air streams over Fe"2O"3 catalyst has been investigated in this work. The kinetic data base has been generated under quasi-differential conditions in a fixed bed reactor with Fe"2O"3 prepared by thermal decomposition and calcined at 600^oC. A series-parallel reaction network is proposed for the catalytic combustion of MEK, and several kinetic models have been tested, ranging from the simple power law model to mechanistic approaches. It has been found that the Langmuir-Hinshelwood mechanism with one type of active site over which adsorption of oxygen, MEK and carbon monoxide takes place, fits the experimental results obtained reasonably well. Moreover, the kinetic parameters so obtained are able to predict the performance of a Fe"2O"3 based catalytic membrane reactor. ... Read more

Book Description
This digital document is a journal article from Environmental Pollution, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
The wild tomato species Lycopersicon pimpinellifolium (currant tomato) was exposed to different O"3 concentration, both in controlled environment fumigation facilities and in open-top chambers, to assess its sensitivity and to verify its potential as a bioindicator plant. Plants appeared particularly sensitive to O"3 at an early stage of growth, responding with typical chlorotic spots within 24h after exposure to a single pulse of 50ppb for 3h, and differentiating peculiar symptoms, such as reddish necrotic stipples, bronzing and extensive necrosis, depending on O"3 concentration. Histo-cytochemical investigations with 3,3'-diaminobenzidine, to localize H"2O"2, and Evans blue, to detect dead cells, suggested that currant tomato sensitivity to O"3 could be due to a deficiency in the anti-oxidant pools. The combination of these stainings proved to be useful, either to predict visible symptoms, early before their appearance, and to validate leaf ozone injury. y. ... Read more