R.A. Williams

ORCID: 0000-0002-4049-9710
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About
Contact & Profiles
Research Areas
  • Electrical and Bioimpedance Tomography
  • Mineral Processing and Grinding
  • Minerals Flotation and Separation Techniques
  • Flow Measurement and Analysis
  • Cyclone Separators and Fluid Dynamics
  • Geophysical and Geoelectrical Methods
  • Granular flow and fluidized beds
  • Electrostatics and Colloid Interactions
  • Pickering emulsions and particle stabilization
  • Aerosol Filtration and Electrostatic Precipitation
  • Fault Detection and Control Systems
  • Innovative Microfluidic and Catalytic Techniques Innovation
  • Microfluidic and Bio-sensing Technologies
  • Fluid Dynamics and Mixing
  • Electrohydrodynamics and Fluid Dynamics
  • Particle Dynamics in Fluid Flows
  • Vehicle Dynamics and Control Systems
  • Coagulation and Flocculation Studies
  • Non-Destructive Testing Techniques
  • Heat and Mass Transfer in Porous Media
  • Metal Extraction and Bioleaching
  • Lattice Boltzmann Simulation Studies
  • Vibration Control and Rheological Fluids
  • Surfactants and Colloidal Systems
  • Material Dynamics and Properties

CARE USA
2024-2025

Southeastern Louisiana University
2024

Prairie View A&M University
2024

Heriot-Watt University
2016-2024

University of Leeds
2006-2022

Veolia (France)
2022

Heriot-Watt University Malaysia
2020

Cranfield University
2020

Naval Postgraduate School
2019

Utah State University
2019

10.1016/j.ijheatmasstransfer.2005.07.009 article EN International Journal of Heat and Mass Transfer 2005-09-28

10.1016/0892-6875(92)90134-u article EN Minerals Engineering 1992-09-01

The article demonstrates the implementation of a model-based vehicle estimator, which can be used for combined estimation states and parameters. estimator is realised using dual extended Kalman filter (DEKF) technique, makes use two filters running in parallel, thus 'splitting' state parameter problems. Note that problems cannot entirely separated due to their inherent interdependencies. This technique provides several advantages, such as possibility switch off once sufficiently good set...

10.1080/00423110500385949 article EN Vehicle System Dynamics 2005-12-27

10.1016/s0032-5910(01)00268-6 article EN Powder Technology 2001-10-01

10.1205/026387698525694 article EN Process Safety and Environmental Protection 1998-11-01

Recent developments in the design and application of tomographic sensors for measurements industrial processes are reviewed. The principal sensing methods their relative performance summarized. Industrial scale applications, future prospects limitations technology discussed.

10.1088/0957-0233/7/3/002 article EN Measurement Science and Technology 1996-03-01

Automotive suspension design is a compromise brought about by the conflicting demands of ride and handling. The past few years have seen introduction increasingly sophisticated, electronically controlled, components into automotive suspensions which redefine boundaries compromise. paper has been written in two parts. This first part reviews compromises are required conventional passive suspension. It then goes on to show how those can be changed inclusion active components. second discusses...

10.1243/0954407971526551 article EN Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering 1997-06-01

10.1016/0892-6875(93)90012-c article EN Minerals Engineering 1993-07-01

This paper presents the development of a new electrical impedance tomography system for online measurement two-phase flows with axial velocities up to 10 ms/sup -1/. The is designed in modular fashion and can consist several data acquisition modules computing modules. module includes voltage controlled current source direct-current-restoration circuit, an equal-width pulse synthesizer unit synchronized digital demodulation unit. A concept switching scheme developed enhance ac coupling speed....

10.1109/jsen.2005.843904 article EN IEEE Sensors Journal 2005-04-01

10.1016/0009-2509(93)81042-t article EN Chemical Engineering Science 1993-01-01

Mathematical models of soil nonlinearity in common use and recently developed nonlinear codes are compared to investigate the range their predictions. We consider equivalent linear formulations with without frequency-dependent moduli damping ratios for total effective stress. Average velocity profiles 150 m depth midrange National Earthquake Hazards Reduction Program site classifications (B, BC, C, D, E) top 30 used compare response a wide conditions from rock soft soil. Nonlinear using...

10.1785/012003256 article EN Bulletin of the Seismological Society of America 2004-10-01

Drilling is a complex three dimensional cutting process yet it possible to simulate the action of two flute twist drill with models provided consideration given influence feed velocity on geometry at point. Two chip formation and an indentation model are developed From these equations derived for prediction total torque thrust conditions, geometry, empirical factor which related work material. Computed values shown compare favorably those obtained from drilling tests 0.45 percent C steel....

10.1115/1.3438497 article EN Journal of Engineering for Industry 1974-11-01

A new concept of nanoporous metal organic framework particles stabilising emulsions was investigated. The copper benzenetricarboxylate MOF adsorbed at the oil/water interface play an exceptional role in both oil-in-water and water-in-oil emulsions.

10.1039/c3cc43689f article EN cc-by-nc Chemical Communications 2013-01-01
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