In this research, the performance and kinetics of an iron/manganese oxide catalyst in a fixed-bed reactor by Fischer-Tropsch Synthesis is studied. The range of operating conditions are; P = 1 – 12 bar, T = 513 - 553 K, H2/CO ratio = 1 - 2 and GHSV = 4200 – 7000 ((〖cm〗^3 (STP))/h/g_cat). The effect of these independent variables, on Fischer-Tropsch product were performed by using a statistical m...

in this work, response surface methodology (rsm) and artificial neural network (ann) were used to predict the decolorization efficiency of reactive red 33 (rr 33) by o3/uv process in a bubble column reactor. the effects of four independent variables including time (20-60 min), superficial gas velocity (0.06-0.18 cm/s), initial concentration of dye (50-150 ppm) and ph (3-11) were investigated us...

in this study, modeling and optimization of coagulation and flocculation processes in cod removal of galvanized wastewater treatment plant of mobarakeh steel complex (msc) were studied. experiments of this study were designed using response surface method which is one of the most efficient methods in experimental design. the variables assessed in this study, are four factors including ph, input...

In most of the sheet forming processes, production of the parts with minimum thickness variation and low required force is important. In this research, minimization of the sheet thinning and forming force in the hydraulic deep drawing process has been studied. Firstly, the process is simulated using the finite element method (FEM) and simulation model is verified using the experimental results....

This paper deals with a tool developed to support training and education in the field of security and safety in work areas, plants, or industrial environments. The tool comprises the dashboards enabling administrators and users to simulate risks and accidents to be ready for interventions in case of occurrence. Based on a computational model of risks, able to identify the causes and the signs w...

Vowel Spaces within and across Language Communities Andrew R. Plummer, Lucie Ménard , Benjamin Munson, Mary E. Beckman Dept. of Linguistics, The Ohio State University, Columbus, OH, USA département de linguistique, Université du Québec à Montréal, Montréal, Canada Dept. of Speech-Language-Hearing Sciences, University of Minnesota, Minneapolis, MN, USA {plummer,mbeckman}@ling.ohio-state.edu, men...

Models for mixtures of ingredients are typically tted by Schee e's canonical model forms. An alternative representation is discussed which ooers attractive symmetries, compact notation and homogeneous model functions. It is based on the Kronecker algebra of vectors and matrices, used successfully in previous response surface work. These alternative polynomials are contrasted with those of Schee...

The property of synergy and its detection are discussed. A response surface is said to possess synergy if it is monotone in each argument and its level curves are convex. Detecting this property is particularly useful in the study of combination drug therapies where the goal is enhanced response or diminished side effect. One way to detect synergy is to fit a surface with linear level curves un...