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This digital document is an article from Membrane & Separation Technology News, published by Business Communications Company, Inc. on September 1, 2002. The length of the article is 529 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: PERVAPORATION: Agarose Preferentially Permeates Water.
Publication:Membrane & Separation Technology News (Newsletter)
Date: September 1, 2002
Publisher: Business Communications Company, Inc.
Volume: 20 Issue: 12

Distributed by Thomson Gale.
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This digital document is a journal article from Chemosphere, published by Elsevier in . 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 role of catalyst and the reason for the preferential formation of N"2 in the catalytic oxidation reaction of ammonia in water over a Ru (3wt.%)/TiO"2 catalyst were elucidated. It was verified that the catalyst in the reaction had no direct relevance to the selective formation of N"2, but was responsible only for the oxidation of aqueous ammonia, NH"3(aq), finally giving a molecule of nitrous acid. The preferential production of N"2 was experimentally demonstrated due to the homogeneous aqueous phase reaction of the nitrous acid-dissociated NO"2^- with NH"4^+ ions. Even under the highly oxidizing condition, NO"2^- was much more likely to react with NH"4^+ to form N"2 than being oxidized over the catalyst to NO"3^- as long as NH"4^+ was available in solution. .
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This digital document is a journal article from Journal of Environmental Management, published by Elsevier in . 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 traditional assumption with multi-criteria natural resource management models is that the values of the decision alternatives with respect to one criterion can be assessed independently of the values of the decision alternatives with respect to other criteria. In practice, however, the assumption of independent decision criteria is not always realistic. For example, the importance of the amount of old forests to biodiversity may depend on the amount of dead wood. This paper shows how multi-criteria natural resource management problems can be analysed in a case involving dependent decision criteria. The proposed models are based on pair-wise comparisons of items in the ratio scale and statistical regression analysis of the pair-wise comparisons data. The basic idea behind the dependent models is to ask the decision maker (e.g. forest owner) to assess the decision alternatives or their characteristics simultaneously with respect to dependent decision criteria. The separate models for discrete and continuous cases are given, which enable the number of potential management alternatives to vary from a few to infinite. The models proposed allow a more realistic description of the decision problem in multi-criteria natural resource management. .
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