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Publications Influence

Comments on Nonlinear Wave Equations as Models for Elementary Particles

- G. Derrick
- Physics
- 1 September 1964

It is shown that for a wide class of nonlinear wave equations there exist no stable time‐independent solutions of finite energy. The possibility is considered whether elementary particles might be… Expand

840 29

Crossed gratings: A theory and its applications

- G. Derrick, R. McPhedran, D. Maystre, M. Nevière
- Physics
- 1979

We introduce a rigorous formulation for the problem of the diffraction by a finitely-conducting, bi-periodic surface. The formationon is based on a coordinate transformation which maps the grating… Expand

87 5

The conductivity of lattices of spheres - II. The body centred and face centred cubic lattices

- D. Mckenzie, R. McPhedran, G. Derrick
- Mathematics
- Proceedings of the Royal Society of London. A…
- 21 July 1978

The conductivities of body-centred (b. c. c.) and face-centred (f. c. c.) cubic lattices of spheres of a conducting material in a conducting matrix are calculated by using a method originally devised… Expand

192 5

Theory of Crossed Gratings

- R. McPhedran, G. Derrick, L. Botten
- Materials Science
- 1980

In this chapter we will consider the theoretical analysis and the properties of doubly periodic diffraction gratings (“bigratings”). Our interest in these structures has been stimulated by two… Expand

40 1

Stability of Time‐Dependent Particlelike Solutions in Nonlinear Field Theories. I

- D. Anderson, G. Derrick
- Physics
- 1970

It is shown that particlelike solutions of the form ψ = φ(r)e−iωt to the nonlinear field ∇2ψ−c−2∂2ψ/∂t2=κ2ψ−μ2ψψ*ψ+λψψ*ψψ*ψ can exist for a certain range of the field parameters. The stability of the… Expand

82 1

Diffraction properties of a bandpass grid

- R. Compton, R. McPhedran, G. Derrick, L. Botten
- Materials Science
- 1 September 1983

Abstract We describe a rigorous formulation for the diffraction by perfectly conducting grids of finite thickness with cross-shaped apertures. This formulation is employed to study the use of these… Expand

44

Fetal and maternal plasma electrolytes, blood gases, and pH in dairy cows during late gestation.

- G. Wilson, J. Hunter, G. Derrick, W. M. Aitken, D. Kronfeld
- Chemistry, Medicine
- Journal of dairy science
- 1 July 1977

Sodium, potassium, and chloride were determined in fetal and maternal plasma of six cows between 208 and 269 days of gestation. Blood pH and partial pressures of oxygen and carbon dioxide also were… Expand

11

Diffraction Gratings in the Quasi-static Limit

- J. Bell, G. Derrick, R. McPhedran
- Materials Science
- 1 November 1982

For gratings having an arbitrary symmetric profile, we prove that when the period becomes much finer than the wavelength the grating becomes equivalent to a graded uniaxial layer. We show for one p...

36

Fetal and maternal mineral concentrations in dairy cattle during late pregnancy.

- G. Wilson, J. Hunter, G. Derrick, W. M. Aitken, D. Kronfeld
- Biology, Medicine
- Journal of dairy science
- 1 June 1977

Concentrations of ionic and total calcium, magnesium, and inorganic phosphorus in plasma were determined in bovine fetuses and their mothers within the last month before delivery. Mean fetal… Expand

12

The collection of diffuse light onto an extended absorber

- I. Bassett, G. Derrick
- Physics
- 1978

If light comes from a fixed direction and is to be collected onto an absorbing body which is approximately a point or a straight line, it is well known that a mirror of parabolic profile serves the… Expand

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