22 Result(s)

Article

Electron Backscatter Diffraction: An Important Tool for Analyses of Structure–Property Relationships in Thin-Film Solar Cells

The present work gives an overview of the application of electron backscatter diffraction (EBSD) in the field of thin-film solar cells, which consist of stacks of polycrystalline layers on various rigid or fle...

D. Abou-Ras, J. Kavalakkatt, M. Nichterwitz, N. Schäfer, S. Harndt, A. J. Wilkinson… in JOM (2013)

Article

Nanoindentation study of slip transfer phenomenon at grain boundaries

Nanoindentation was undertaken near grain boundaries to increase understanding of their individual contributions to the material’s macroscopic mechanical properties. Prior work with nanoindentation in body-cen...

T. B. Britton, D. Randman, A. J. Wilkinson in Journal of Materials Research (2009)

Article

Low-temperature fracture mechanisms in a spheroidised reactor pressure vessel steel

The micromechanisms of fracture of a spheroidised A533B reactor pressure vessel steel over the temperature range of −190°C to + 60°C were investigated by performing uniaxial tensile tests on double-notched cyl...

A. Kumar, S. G. Roberts, A. J. Wilkinson in International Journal of Fracture (2007)

Article

Characterization of Nitride Thin Films by Electron Backscatter Diffraction and Electron Channeling Contrast Imaging

In this paper we describe the use of electron backscatter diffraction (EBSD) map** and electron channeling contrast imaging—in the scanning electron microscope—to study tilt, atomic steps and dislocations in...

C. Trager-Cowan, F. Sweeney, A. J. Wilkinson… in MRS Online Proceedings Library (2005)

Article

A Multiple Slip Plane Model for Crack-Tip Plasticity

A single slip plane dislocation dynamics based model for the brittle to ductile transition has been extended to have multiple slip planes around the crack-tip. The crack-tip plastic behaviour is studied for a ...

S. J. Noronha, S. G. Roberts, A. J. Wilkinson in MRS Online Proceedings Library (1999)

Chapter and Conference Paper

Towards deconvoluting the interaction of the Bacillus subtilis sporulation proteins SinR and SinI using tryptophan analogue incorporated proteins

Sporulation in Bacillus subtilis is used as the strategy of last resort for survival of the organism and it is a very tightly controlled developmental process. One of the control checkpoints that must be overcome...

D. J. Scott, S. Leejeerajumnean, J. A. Brannigan… in Analytical Ultracentrifugation V (1999)

Article

Microstructural Studies of Tl₂Ba₂Ca₂Cu₃O_x Thin Films on LaAlO₃ and MgO Substrates.

Tl₂Ba₂Ca₂Cu₃O_x thin films have been fabricated on (001) LaAlO₃ and (001) MgO substrates. Films grown on LaAlO₃ have T_c=112K and R_S(80K, 10GHz)=0.2mΩ, while films on MgO have T_c=117K and R_s(80K, 10GHz)=0.7mΩ. The ...

A.P. Bramley, A.J. Wilkinson, A.P Jenkins, C.R.M. Grovenor in Journal of Superconductivity (1998)

Chapter and Conference Paper

The Design and Control of a Novel Robot Structure with Differential Drive Units

A novel robot has been designed and constructed as part of a project to develop water hydraulic systems. A planar five-bar mechanism is driven through two co-axial shafts to position the end effector anywhere ...

P. M. Taylor, J. C. Kieffer, A. J. Wilkinson… in Theory and Practice of Robots and Manipula… (1995)

Article

Irish Society of Gastroenterology

J. Coleman, D. Bouchier Hayes, M. A. Daw, R. O’More… in Irish Journal of Medical Science (1993)

Chapter

A low cost robot based integrated manufacturing system for the garment industry

As the rest of the world becomes more competitive so the garment manufacturing industry in the UK suffers from the effects of low cost imports. High levels of employment and high wage figures in the UK and a n...

I. Gibson, P. Bowden, P. M. Taylor, A. J. Wilkinson in Robotic Systems (1992)

Chapter

Statistical Process Control in Pressure Die-Casting

This paper describes one aspect of work which is being carried out under a Teaching Company Scheme between the the two organisations named above, partially funded by SERC. After describing the die-casting proc...

A. J. Wilkinson, J. A. Scott, G. E. Wilson… in Proceedings of the Twenty-Ninth Internatio… (1992)

Chapter and Conference Paper

Complete Garment Assembly Using Robots

This paper describes the evolution of the problem of robotic based fabric handling as seen by the Robotics Research Unit at Hull University. The third phase of the associated project, following success in ply ...

I. Gibson, P. M. Taylor, A. J. Wilkinson, G. S. Palmer… in Expert Systems and Robotics (1991)

Chapter

Integration of A Flexible Workcell for Garment Assembly

Hull University Robotics Research Unit is currently researching into the problems involved in realising a flexible, automated garment assembly workstation. A demonstration rig, incorporating a number of roboti...

P. M. Taylor, A. J. Wilkinson, M. Gunner… in Proceedings of the Twenty-eighth Internati… (1990)

Chapter

Probing the Mechanism of Enzyme Action Through Specific Amino Acid Substitutions

The technique of site-directed mutagenesis mediated by specific oligonucleotides is a rapid, simple and powerful tool with which to study the roles played by particular amino acid side chains in proteins. The ...

A. J. Wilkinson in Metabolism and Enzymology of Nucleic Acids (1988)

Chapter

Tool Condition Monitoring Using Multi-Component Force Measurements

Automatic in-process detection of the condition of the cutting tool is an important capability required in unmanned machining. This paper describes the use of multi-component force measurements for the purpose...

R. Mackinnon, G. E. Wilson, A. J. Wilkinson in Proceedings of the Twenty-Sixth Internatio… (1986)

Chapter

Constraints on Adaptive Control in Unmanned Machining

The objective of constraint-type adaptive control systems is to remove metal as fast as possible. This means that, for the most part, the system will be working against a limit such as a maximum cutting force ...

R. Mackinno, G. E. Wilson, A. J. Wilkinson in Proceedings of the Twenty-Fifth Internatio… (1985)

Chapter

A Force Transducer for a Turret Lathe

This paper considers the design, implementation and testing of a multi-component force transducer for a turret lathe. The system developed, using a dynamometer and strain gauges, permits measurement of the thr...

R. Mackinnon, G. E. Wilson, A. J. Wilkinson in Proceedings of the Twenty-Fourth Internati… (1984)