tert-Butyl methyl ether (TBME) has been effectively used as a reagent for esterification of carboxylic acids. By varying amounts of sulfuric acid, a remarkable regioselectivity in esterification Nike Air Max Tn 2013 has been demonstrated. Additionally, under the present reaction conditions, one-pot esterification and Ritter reaction are achieved in almost quantitative yield.
This paper presents a state-of-the-art review of the use of expert systems in land-use planning in general and site selection in particular. It focuses on the theoretical discussion of different types of computer-based systems (i.e. expert systems, decision support systems, integrated systems) and tries to assess Nike Air Force Canada Edition
the usefulness of each system for the urban planner.
A theory for flame spread above a solid fuel is presented. The special case is considered whereby the oxidation is an exothermic surface reaction. The spreading rate is predicted as a function of the thermochemical properties, fuel-bed thickness, and convective velocity. Also, the theory predicts temperature, mass fraction, and heat flux as a function of position.
Dewatering of fuel peat by mechanical pressing can be greatly improved by treating the peat with lime and then running it through a freeze-thaw cycle. Results are presented for different concentrations of lime and different types of treatment.