Zobrazeno 1 - 10
of 59
pro vyhledávání: '"M. J. BUCKINGHAM"'
Autor:
R. A. Preston, M. E. Costa, M. J. Buckingham, John Reynolds, D. L. Jauncey, M. W. Sinclair, David Blair, R. H. Ferris, Anastasios Tzioumis
Publikováno v:
Review of Scientific Instruments. 66:995-999
Groundstation antennas located in Western Australia have been used as elements in the Southern Hemisphere very long baseline interferometry (VLBI) experiment. These commercial antennas of 27.5 and 15 m diameter provide a very economical improvement t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::940e12ebcd6e2e6f7e512557786f828d
https://doi.org/10.1063/1.1145634
https://doi.org/10.1063/1.1145634
Publikováno v:
Exploration Geophysics. 25:25-30
We report here two new applications of the Poisson relation useful when a joint magnetic and gravity gradient survey has been made. In the first, an apparent susceptibility contrast to density contrast ratio map (which we call the "pseudo-lithology"
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f012513e3f7a74753b0fcd346369f40
https://doi.org/10.1071/eg994025
https://doi.org/10.1071/eg994025
Autor:
M. J. Buckingham, P. Hong, S.K. Jones, Andre N. Luiten, P. J. Turner, Anthony Mann, M. E. Costa, David Blair, A.J. Giles, A.C. Young
Publikováno v:
Measurement Science and Technology. 3:718-722
The authors present a sapphire oscillator with a long hold-time cryostat and helium recovery system to overcome the inherent difficulty of using this liquid-helium-cooled frequency standard at a remote site. The oscillator has been used as a frequenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3cc01ce57f1e49c078fa1cca0d3867d
https://doi.org/10.1088/0957-0233/3/8/006
https://doi.org/10.1088/0957-0233/3/8/006
Publikováno v:
Journal of Physics D: Applied Physics. 25:1105-1109
Residual paramagnetic impurities in a sapphire monocrystal multi-mode resonator can provide a means of temperature compensation so that the effect of temperature fluctuations on the frequency of an ultra-stable cryogenic microwave oscillator can be r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bec3c6a56182e9d912aa0c0353992bb0
https://doi.org/10.1088/0022-3727/25/7/012
https://doi.org/10.1088/0022-3727/25/7/012
Autor:
M. J. Buckingham, F. J. van Kann, R. Matthews, C. Edwards, M. H. Dransfield, P. J. Turner, Anthony Mann
Publikováno v:
Exploration Geophysics. 22:107-110
Gravity gradiometers have the potential to provide gravity measurements from a moving vehicle, thus allowing airborne gravity surveys. In order to achieve this potential, exacting sensitivity and bandwidth requirements must be met by the instrument a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13e9761a073e05e60f362ec64c17b12b
https://doi.org/10.1071/eg991107
https://doi.org/10.1071/eg991107
Autor:
M. J. Buckingham
There are four long term goals, as follows, in descending order of priority. 1) Characterize fully, from a physics-based model, the inter-relationships that exist between the geo-acoustic properties (i.e., compressional-wave speed and attenuation, sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdfecf1c1a6d02bd8166abf7632b5457
https://doi.org/10.21236/ada612628
https://doi.org/10.21236/ada612628
Publikováno v:
Proceedings of the 43rd Annual Symposium on Frequency Control.
By combining the high mechanical rigidity and low loss tangent of cryogenic sapphire with the excellent shielding and low loss properties of a superconducting cavity, the authors have developed a microwave resonator with both high electrical quality
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::007b3ebb679a18d35ec6edf09a0ef69e
https://doi.org/10.1109/freq.1989.68841
https://doi.org/10.1109/freq.1989.68841
Publikováno v:
Proceedings of the 1992 IEEE Frequency Control Symposium.
Measurements of the properties of cryogenic sapphire resonators with various concentrations of paramagnetic ions are reported, and a new way of achieving self-compensation of temperature fluctuations for such resonators mounted inside conducting shie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47fae2b2e2d4fec8c36ece431a6b3172
https://doi.org/10.1109/freq.1992.270018
https://doi.org/10.1109/freq.1992.270018
Autor:
M J Buckingham
The long term objective is to characterize the wave properties of marine sediments, both experimentally and theoretically, in the frequency band between 100 Hz and 100 kHz.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0afbe0044f2c7e2a452a94a7068e6e41
https://doi.org/10.21236/ada625591
https://doi.org/10.21236/ada625591