**email:** alan@hcibook.com

Publications from when I worked at the National Institute of Agrocultural Engineerting at Silsoe, Bedfordshire (later called Silsoe Research Institute). I was part of the Spray Physics Group and in partcular was involved in mathematical modelling and computer simuation of electrostatically charged sprays. Computation was largely due to a SuperBrain CPM micro [pic1, pic2, inside, @wikipedia] ... and there were loads of brightly painted tractors everywhere

J. A. Marchant and A. J. Dix (1986).

**The torque due to the liquid on a spinning disc atomizer.**

*Journal of Agricultural Engineering Research,* **33**: pp. 273-280.

J. A. Marchant, A. J. Dix and J. M. Wilson (1985).

**The electrostatic charging of spray produced by hydraulic nozzles. Part I. Theoretical Analysis.***Journal of Agricultural Engineering Research,* **31**: pp. 329-344.
DOI:10.1016/0021-8634(85)90109-X

J. R. Lake and A. J. Dix (1985). **Measurement of droplet size with a PMS optical array probe using an X-Y nozzle transporter.***Crop Protection,* **4**(4): pp. 464-472.
DOI:10.1016/0261-2194(85)90051-1

J. A. Marchant, A. J. Dix and J. M. Wilson (1985). **The electrostatic charging of spray produced by hydraulic nozzles. Part II. Measurements.***Journal of Agricultural Engineering Research,* **31**: pp. 345-360.
DOI:10.1016/0021-8634(85)90110-6

A. J. Dix and J. A. Marchant (1984). **A mathematical model of the transport and deposition of charged spray drops.***Journal of Agricultural Engineering Research,* **30**: pp. 91-100.
DOI:10.1016/S0021-8634(84)80010-4

A. J. Dix (1983). **Charged spray drop clouds: A mathematical model.**

DN 1184, National Institute of Agricultural Engineering, Divisional Note.

J. R. Lake, R. Green, M. Tofts and A. J. Dix (1982).

**The effect of an aerofoil on the penetration of charged spray into barley.***Proceedings 1982 British Crop Protection Conference - Weeds,* . pp. 1009-1016.

A. J. Dix (1982). **Program for analysis of cut grass data.**

SN/13/82, National Institute of Agricultural Engineering, Statistical Note.