687 Edgar Buckingham became involved with soil physics for 5 yr at the turn of the twentieth century. His general goal was to advance understanding of moisture movement and evaporation from soils to improve irrigation and crop management. Specifi cally, he was interested in elucidating why evaporation from near the soil surface in arid areas during summer months was self-limiting (Buckingham, 1...

Experiments have been carried out in a 0.1 m internal diameter, 1.88 m height vertical Plexiglas column with an antenna type modified air sparger in the gas-liquid distributor section. This arrangement provides uniform mixing of the fluids, ensures the gas entering the fluidizing section as fine bubbles and reduces the pressure drop encountered through a conventional distributor used for the pu...

In the absence of governing equations, dimensional analysis is a robust technique for extracting insights and finding symmetries in physical systems. Given measurement variables parameters, Buckingham Pi theorem provides procedure set dimensionless groups that spans solution space, although this not unique. We propose an automated approach using symmetric self-similar structure available data t...

In physics and engineering, data is represented as attribute-value pairs with corresponding measurement units. Due to the functional model building process in the natural sciences, any functional relationship with measurement units based on a dimensions concept can be written in terms of dimensionless groups. This is guaranteed by the Pi-Theorem of Buckingham which is based on the condition of ...

In the field of case-based reasoning in artificial intelligence, the general derivation of so-called similarity measures is still an unresolved open question. In this work the theoretical framework of dimensional analysis is used to derive appropriate similarity measures for a case-based reasoning technique. For the subclass of all case descriptions in engineering and physics consisting of real...

Miniature and energy efficient propulsion systems hold the key to maturing the technology of swimming microrobots. In this paper, two new methods of propulsion inspired by the motility mechanism of prokaryotic and eukaryotic microorganisms are proposed. Hydrodynamic models for each of the two methods are developed and the optimized design paramteres for each of the two propulsion modes are demo...

In the field of case-based and rule-based reasoning in artificial intelligence, the general formal derivation of so-called similarity measures is still an unresolved open question. In this work the theoretical framework of dimensional analysis is used to derive appropriate similarity measures for a case-based and rule-based reasoning technique. For the subclass of case descriptions in engineeri...

HF level of ab initio calculations with basis-set 6-31G including full counterpoise correction hasbeen applied to compute the AspHis potential with the Ser and HisSer potential with the Asp inAspHisSer trimer. The potential energy surface has a minimum of -16.765 kcal/mol in R1=1.912nm and R2=2.719 nm. The optimum computed curves for two interactions were fitted withintermolecular pair potentia...

Early Days of the Department Education at University Buckingham: A Personal View