Zobrazeno 1 - 10
of 15
pro vyhledávání: '"J. H. Howie"'
Autor:
A. R. Holmes, Helen S. Margolis, A. J. Varney, M. T. Williams, A. T. Handford, M. A. Levine, P. J. Hirst, J. D. Silver, M. Roberts, K. A. Nobbs, Ian Williams, D. J. H. Howie, William A. Hallett, S. J. Rose, Paul D. Groves, Ian P. Grant, P E G Baird, R. A. Hunt, William Graham, Justin Wark, W. Studholme, R. O’Neil, D. D. Dietrich
An electron‐beam ion trap (EBIT) has just been completed in the Clarendon Laboratory, Oxford. The design is similar to the devices installed at the Lawrence Livermore National Laboratory. It is intended that the Oxford EBIT will be used for x‐ray
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bd8bf1ec7ecbbe61084ced00dbe5ed5
https://ora.ox.ac.uk/objects/uuid:c0fb2c15-bf18-4208-b82b-8673cde78368
https://ora.ox.ac.uk/objects/uuid:c0fb2c15-bf18-4208-b82b-8673cde78368
Autor:
John Howieson, A.D. Craig, Graeme Sandral, J. H. Howie, P.W. Skinner, E Hall, Clinton Revell, R. Snowball, Ming Pei You, Martin J. Barbetti, B.S. Dear, S.J. Carr, Ramakrishnan M. Nair, G.A. Auricht, D.L. Lloyd, Mike Ewing, G. Crocker, Phillip Nichols, B.C. Pengelly, P. M. Evans, Kevin Foster, S. Hughes, Angelo Loi, Belinda Hackney, Bradley J. Nutt, C. T. de Koning
Publikováno v:
Field Crops Research. 104:10-23
Fifteen years ago subterranean clover (Trifolium subterraneum) and annual medics (Medicago spp.) dominated annual pasture legume sowings in southern Australia, while limited pasture legume options existed for cropping areas of subtropical Australia.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::296a85b146ebd9ea758a8e2c02b03d0c
https://doi.org/10.1016/j.fcr.2007.03.016
https://doi.org/10.1016/j.fcr.2007.03.016
Publikováno v:
Physical Review A. 57:180-188
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::792b508eee412435cd4a14b0f69a72e6
https://doi.org/10.1103/physreva.57.180
https://doi.org/10.1103/physreva.57.180
Publikováno v:
Physical Review Letters. 76:4899-4902
We have observed the 1{ital s}2{ital s}{sup 1}{ital S}{sub 0}-1{ital s}2{ital p}{sup 3}{ital P}{sub 0} transition in {sup 14}N{sup 5+} using Doppler-tuned fast-beam laser spectroscopy. This transition, absolutely forbidden for atoms with zero nuclear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bc60e8a3d7da02281a7c24aa5e512e9
https://doi.org/10.1103/physrevlett.76.4899
https://doi.org/10.1103/physrevlett.76.4899
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 29:927-936
We have used photographic spectroscopy of a beam - foil source to measure the vacuum ultraviolet 1s2s - 1s2p transition wavelengths in helium-like sulphur. The results are A and A, respectively. These measurements, together with our earlier measureme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7c892b4b3da96951669c5d455d4fab1
https://doi.org/10.1088/0953-4075/29/5/007
https://doi.org/10.1088/0953-4075/29/5/007
Autor:
James K. Thompson, Edmund G. Myers, D. J. H. Howie, J. D. Silver, N. R. Claussen, E. P. Gavathas
Publikováno v:
Physical Review Letters. 75:3637-3640
For a large range of {ital Z} the 1{ital s}2{ital s}{sup 1}{ital S}{sub 0}{minus}1{ital s}2{ital p}{sup 3}{ital P}{sub 1} interval in heliumlike ions lies in a wavelength region accessible by infrared lasers. Measurements of this interval will enable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2ab6859e43a24c88252dd2db4f02e36
https://doi.org/10.1103/physrevlett.75.3637
https://doi.org/10.1103/physrevlett.75.3637
Publikováno v:
Physical Review A. 52:1761-1764
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02aeefea9a0a4594e58c474f40018eb6
https://doi.org/10.1103/physreva.52.1761
https://doi.org/10.1103/physreva.52.1761
Publikováno v:
Physical Review A. 49:4390-4397
We have measured the vacuum-ultraviolet 1s2s $^{3}$${\mathit{S}}_{1--}$1s2p $^{3}$${\mathit{P}}_{2,0}$ transition wavelengths in heliumlike silicon by photographic spectroscopy of a beam-foil source. The results are 814.71\ifmmode\pm\else\textpm\fi{}
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1db1fa67696c30d9eb24bb135467e10d
https://doi.org/10.1103/physreva.49.4390
https://doi.org/10.1103/physreva.49.4390
Publikováno v:
AIP Conference Proceedings.
For a large range of Z the intercombination 1s2s 1S0−1s2p 3P1 interval in heliumlike ions is accessible to spectroscopy with infra-red lasers. Using a CO2 laser and a nitrogen ion beam from a Van de Graaff accelerator, together with careful energy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bddc906bd8e270ef4077e9999c69bf36
https://doi.org/10.1063/1.52446
https://doi.org/10.1063/1.52446
Autor:
David M. Peck, J. H. Howie
Publikováno v:
Crop and Pasture Science. 63:866
Sulfonylurea (SU) herbicides are extensively applied to crops in the cereal-livestock zones of southern Australia. In low rainfall areas with alkaline soils, SU residues can persist over summer and can severely affect sown or regenerating medic pastu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f142d9fda8bcc3979d0616360e363f50
https://doi.org/10.1071/cp12130
https://doi.org/10.1071/cp12130