Using web-based tools for teaching statistical concepts and experimentation skills
This paper describes a number of generally accessible web-based tools the authors developed over the last couple of years and used in several statistics courses, ranging from the introductory statistics course to a specialized design of experiments course. The first set of tools (VESTAC) illustrates statistical concepts, the second one (VIRTEX) consists of virtual experiments. We discuss some of our experiences with regard to the development and maintenance of these tools and their use in ex cathedra teaching sessions, in guided practice sessions and in student projects. Finally we discuss a third type of tools: distance experiments.
Comparison of Different Forms of Sequential Designs for a Low and High Dimensional Case
REFERENCES [1] Box, G. E. P. (1957). Evolutionary Operation: A Method for Increasing Industrial Productivity. Journal of the Royal Statistical Society. Series C (Applied Statistics), 6, pp. 81-101. [2] Darius, P., Schrevens, E., van der Knaap, H., Portier, K., Massonnet, G., Lievens, L., Duchateau, L. & Thas, O. (2003). Using webbased tools for teaching statistical concepts and experimentation skills. Proceedings of Statistics and the Internet Conference, , . [3] Myers, R. H., Montgomery, D. C. & Anderson-Cook, C.M. (2009). Response surface methodology: Process and product optimization using designed experiments. Wiley. [4] Siebertz, K., van Bebber, D. & Hochkirchen, T. (2010). Statische Versuchsplanung. : Springer. [5] Walters, F. H., Lloyd, R. J., Morgan, S. L. & Deming, S.N. (1991). Sequential Simplex Optimization: A Technique for Improving Quality and Productivity in Research, Development, and Manufacturing. : CRC. Results and Discussion Materials and Methods
Correlations for mass transfer between fluidized spheres and a liquid
Abstract Data on mass transfer between the solid particles and the liquid in a fluidized bed have been analyzed. After a convenient selection, various correlations have been derived. They show that for a given fluidized system, the Sherwood number is independent on the Reynolds number.