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All Outputs (1968)

In-house Preparation of Examination Papers using troff, tbl, and eqn. (1984)
Conference Proceeding
Brailsford, D. F. (1984). In-house Preparation of Examination Papers using troff, tbl, and eqn. In J. J. H. Miller (Ed.),

Starting in December 1982 the University of Nottingham decided to phototypeset almost all of its examination papers `in house' using the troff, tbl and eqn programs running under UNIX. This tutorial lecture highlights the features of the three progra... Read More about In-house Preparation of Examination Papers using troff, tbl, and eqn..

Run-time profiling of Algol 68-R programs using DIDYMUS and SCAMP (1977)
Conference Proceeding
Brailsford, D. F., Foxley, E., Mander, K. C., & Morgan, D. J. (1977). Run-time profiling of Algol 68-R programs using DIDYMUS and SCAMP.

Information concerning the run-time behaviour of programs ("program profiling") can be of the greatest assistance in improving program efficiency. Two software devices have been developed for use on ICL 1900 Series machines to provide such informati... Read More about Run-time profiling of Algol 68-R programs using DIDYMUS and SCAMP.

Algol 68 Dialect Conversion -- a Syntactic Approach (1976)
Conference Proceeding
Brailsford, D. F., & Knott, R. D. (1976). Algol 68 Dialect Conversion -- a Syntactic Approach. In V. Rayward-Smith (Ed.),

A syntax directed package for converting Revised Algol 68 programs into Algol 68-R form, (where possible) is being developed at Nottingham. The package makes use of J.M. Foster's Syntax Improving Device (SID) [1]. The experience gained has underlined... Read More about Algol 68 Dialect Conversion -- a Syntactic Approach.

Floating s- and p-type Gaussian Orbitals (1975)
Journal Article
Brailsford, D. F., Hall, G. G., Hemming, N., & Martin, D. (1975). Floating s- and p-type Gaussian Orbitals. Chemical Physics Letters, 35(4),

The advantages of including a small number of p-type gaussian functions in a floating spherical gaussian orbital calculation are pointed out and illustrated by calculations on molecules which previously have proved to be troublesome. These include mo... Read More about Floating s- and p-type Gaussian Orbitals.

Approximate ab initio calculations and the method of molecular fragments (1975)
Conference Proceeding
Brailsford, D. F. (1975). Approximate ab initio calculations and the method of molecular fragments. In V. R. Saunders, & J. Brown (Eds.),

A two stage approach to performing ab initio calculations on medium and large sized molecules is described. The first step is to perform SCF calculations on small molecules or molecular fragments using the OPIT Program. This employs a small basis set... Read More about Approximate ab initio calculations and the method of molecular fragments.

Fast assembly of fock matrices utilising symmetry properties of the basis set (1973)
Journal Article
Brailsford, D. F., & Hylton, J. (1973). Fast assembly of fock matrices utilising symmetry properties of the basis set. Chemical Physics Letters, 18(4),

A method of assembling the elements of the Fock matrix is described which is a modification of that due to Dacre. Lists of symmetry equivalent one-electron integrals are used as pointers to abbreviate the process of collecting two-electron integrals... Read More about Fast assembly of fock matrices utilising symmetry properties of the basis set.

The OPIT system part I. (1973)
Journal Article
Packer, J. C., & Brailsford, D. F. (1973). The OPIT system part I. Computer Physics Communications, 5,

The OPIT program is briefly described. OPIT is a basis-set-optimising, self-consistent field, molecular orbital program for calculating properties of closed-shell ground states of atoms and molecules. A file handling technique is then put forward whi... Read More about The OPIT system part I..

3-body energy terms in a quartet state of H3 (1971)
Journal Article
Brailsford, D. F., & Ford, B. (1971). 3-body energy terms in a quartet state of H3. Chemical Physics Letters, 12(1),

Calculations of the 3-body energy term in a quartet (4A2 ) state of H3 (equilateral triangle nuclear-configurations) show a minimum in the 3-body energy for a side length of about 1.3 bohrs.

Symmetry properties of one- and two- electron molecular integrals (1971)
Journal Article
Brailsford, D. F., & Hall, G. G. (1971). Symmetry properties of one- and two- electron molecular integrals. International Journal of Quantum Chemistry, V,

The maximum numbers of distinct one- and two-electron integrals that arise in calculating the electronic energy of a molecule are discussed. It is shown that these may be calculated easily using the character table of the symmetry group of the set of... Read More about Symmetry properties of one- and two- electron molecular integrals.

Electric field strengths and ion trajectories in sharp-edge field ionization sources (1970)
Journal Article
Brailsford, D. F. (1970). Electric field strengths and ion trajectories in sharp-edge field ionization sources. Journal of Physics D: Applied Physics, 3,

On the presumption that a sharp edge may be represented by a hyperbola, a conformal transformation method is used to derive electric field equations for a sharp edge suspended above a flat plate. A further transformation is then introduced to give el... Read More about Electric field strengths and ion trajectories in sharp-edge field ionization sources.

Calculated ionization potentials of the linear alkanes (1970)
Journal Article
Brailsford, D. F., & Ford, B. (1970). Calculated ionization potentials of the linear alkanes. Molecular Physics, 18(5),

The equivalent orbital (EO) method is investigated and used for predicting outer and inner ionization potentials of the linear alkanes. The calculated ionization potentials are in good agreement with those observed in photoelectron spectra provided t... Read More about Calculated ionization potentials of the linear alkanes.

Experimental investigation of the use of sharp edges for the production of positive ions in field-ionization mass spectrometry (1968)
Journal Article
Blenkinsop, P., Job, B., Brailsford, D. F., Cross, C., & Robertson, A. (1968). Experimental investigation of the use of sharp edges for the production of positive ions in field-ionization mass spectrometry. International journal of mass spectrometry and ion processes, 1(6), 421-434. https://doi.org/10.1016/0020-7381%2868%2985019-3

Various commercial razor blades have been tested for field ionization performance and compared with edges prepared electrochemically from platinum and tungsten foils. The results are correlated with data obtained from electron micrographs of the vari... Read More about Experimental investigation of the use of sharp edges for the production of positive ions in field-ionization mass spectrometry.

Calculation of electric field strengths at a sharp edge (1968)
Journal Article
Brailsford, D. F., & Robertson, A. J. B. (1968). Calculation of electric field strengths at a sharp edge

Sharp edges were first used for field ionisation mass spectrometry by Beckey. Although Cross and Robertson found that etched metal foils were more effective than razor blades for field ionisation, blades are very convenient for determination of field... Read More about Calculation of electric field strengths at a sharp edge.

Developing immersive experience at Caistor Roman Town: Final report on AHRC Next Generation of Immersive Experiences Project (2018)
Report
Bowden, W., Brundell, P., Harlow, N., Martin-Jones, A., & Mullen, A. (2018). Developing immersive experience at Caistor Roman Town: Final report on AHRC Next Generation of Immersive Experiences Project (2018). Nottingham: Arts and Humanities Research Council

This case study documents the approach taken to developing and evaluating a mobile app for the Roman town at Venta Icenorum and includes a qualitative summary of the AR technique and evaluation of its effectiveness, for use by other researchers under... Read More about Developing immersive experience at Caistor Roman Town: Final report on AHRC Next Generation of Immersive Experiences Project (2018).

Privacy Preserving Corpus Linguistics: Investigating the Trajectories of Public Health Messaging Online
Report
McClaughlin, E., Nichele, E., Adolphs, S., Barnard, P., Clos, J., Knight, D., …Lang, A. (2022). Privacy Preserving Corpus Linguistics: Investigating the Trajectories of Public Health Messaging Online. University of Nottingham: AHRC/UKRI

The Coronavirus Discourses project supports public health partners Public Health Wales, Public Health England, and NHS Education for Scotland in addressing key challenges that the coronavirus pandemic presents in terms of understanding the flow and i... Read More about Privacy Preserving Corpus Linguistics: Investigating the Trajectories of Public Health Messaging Online.