In this study, the kinetics for reaction of tert-butanol esterification with acetic acid in presence Dowex 50Wx8 catalyst was investigated. The kinetic experiments were conducted 1000 milliliter vessel at temperatures ranged from 50 - 80 oC, loading 25-50 g/L, and molar ratios to 1/3 – 3/1. rate found increase increasing temperature loading. It also conversion increases as ratio alcohol Non-ide...

The behaviour of energetic solids subjected to simple shear loading is modelled to predict ignition. The model is transient, one dimensional and includes effects of thermal diffusion, plastic work and exothermic reaction with one-step irreversible Arrhenius kinetics. A common power-law constitutive model for shear stress which accounts for strain hardening, strain-rate hardening and thermal sof...

Cofactors are intimately involved in steroid-regulated gene expression. Two critical questions are (1) the steps at which cofactors exert their biological activities and (2) the nature of that activity. Here we show that a new mathematical theory of steroid hormone action can be used to deduce the kinetic properties and reaction sequence position for the functioning of any two cofactors relativ...