Zobrazeno 1 - 10
of 1 991
pro vyhledávání: '"R. A. Harrison"'
Publikováno v:
npj Quantum Information, Vol 7, Iss 1, Pp 1-12 (2021)
Abstract We show that highly confined superfluid films are extremely nonlinear mechanical resonators, offering the prospect to realize a mechanical qubit. Specifically, we consider third-sound surface waves, with nonlinearities introduced by the van
Externí odkaz:
https://doaj.org/article/e9cca7171b614162898c7181b37c03f5
Autor:
A. Rowell, J. Brean, D. C. S. Beddows, Z. Shi, A. Kumar, M. Rissanen, M. Dal Maso, P. Mettke, K. Weinhold, M. Merkel, R. M. Harrison
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 10349-10361 (2024)
Air ions are electrically charged particles in air. They are ubiquitous in the natural environment and affect the Earth's radiation budget by accelerating the formation and growth of new aerosol particles. Despite this, few datasets exist exploring t
Externí odkaz:
https://doaj.org/article/5e6eb56082e644cd90cee044f3f49e58
Autor:
A. Rowell, J. Brean, D. C. S. Beddows, T. Petäjä, M. Vörösmarty, I. Salma, J. V. Niemi, H. E. Manninen, D. van Pinxteren, T. Tuch, K. Weinhold, Z. Shi, R. M. Harrison
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 9515-9531 (2024)
Lockdown restrictions in response to the COVID-19 pandemic led to the curtailment of many activities and reduced emissions of primary air pollutants. Here, we applied positive matrix factorisation to particle size distribution (PSD) data from six mon
Externí odkaz:
https://doaj.org/article/5de4342d391c4d99be9620d9711c8dd0
Autor:
M. Paglione, D. C. S. Beddows, A. Jones, T. Lachlan-Cope, M. Rinaldi, S. Decesari, F. Manarini, M. Russo, K. Mansour, R. M. Harrison, A. Mazzanti, E. Tagliavini, M. Dall'Osto
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 6305-6322 (2024)
Antarctica and the Southern Ocean (SO) are the most pristine areas of the globe and represent ideal places to investigate aerosol–climate interactions in an unperturbed atmosphere. In this study, we present submicrometer aerosol (PM1) source apport
Externí odkaz:
https://doaj.org/article/29178e6c817b4aa1a84913fc47ebb84f
Autor:
J. Li, A. C. Lewis, J. R. Hopkins, S. J. Andrews, T. Murrells, N. Passant, B. Richmond, S. Hou, W. J. Bloss, R. M. Harrison, Z. Shi
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 6219-6231 (2024)
Anthropogenic non-methane volatile organic compounds (VOCs) in the United Kingdom have been substantially reduced since 1990, which is, in part, attributed to controls on evaporative and vehicle tailpipe emissions. Over time, other sources with a dif
Externí odkaz:
https://doaj.org/article/d692ae981a244e8eabad25d10039240a
Autor:
R. G. Harrison, J. C. Riddick
Publikováno v:
History of Geo- and Space Sciences, Vol 15, Pp 5-16 (2024)
Atmospheric electricity measurements, principally of the hourly potential gradient (PG), were made continuously at Eskdalemuir Observatory, Scotland (55.314° N, 3.206° W), between 1911 and 1981. Air ion properties were also determined. The sensing
Externí odkaz:
https://doaj.org/article/91eca7c4f2574c88819aebc99f83508c
Autor:
A. O. Williams, J. A. Davies, S. E. Milan, A. P. Rouillard, C. J. Davis, C. H. Perry, R. A. Harrison
Publikováno v:
Annales Geophysicae, Vol 27, Pp 4359-4368 (2009)
Recently, a technique has been developed whereby the radial velocity, Vr, and longitude direction, β, of propagation of an outward-moving solar transient, such as a Coronal Mass Ejection (CME), can be estimated from its track in a time-elongation
Externí odkaz:
https://doaj.org/article/79ca6f4caa484249b90c3de2326ac243
Autor:
N. P. Savani, A. P. Rouillard, J. A. Davies, M. J. Owens, R. J. Forsyth, C. J. Davis, R. A. Harrison
Publikováno v:
Annales Geophysicae, Vol 27, Pp 4349-4358 (2009)
On 15–17 February 2008, a CME with an approximately circular cross section was tracked through successive images obtained by the Heliospheric Imager (HI) instrument onboard the STEREO-A spacecraft. Reasoning that an idealised flux rope is cylind
Externí odkaz:
https://doaj.org/article/211125b823a34c838bc130e2c60625b4
Autor:
R. G. Harrison, K. Schlegel
Publikováno v:
History of Geo- and Space Sciences, Vol 14, Pp 71-75 (2023)
During 4 decades, from 1950 to 1990, atmospheric electricity measurements as well as other environmental measurements were made by Reinhold Reiter at several sites close to Garmisch-Partenkirchen. The quantities determined included the atmospheric po
Externí odkaz:
https://doaj.org/article/e5c1c59bf616416f9df543accfb1284c
Autor:
J. E. Dyson, L. K. Whalley, E. J. Slater, R. Woodward-Massey, C. Ye, J. D. Lee, F. Squires, J. R. Hopkins, R. E. Dunmore, M. Shaw, J. F. Hamilton, A. C. Lewis, S. D. Worrall, A. Bacak, A. Mehra, T. J. Bannan, H. Coe, C. J. Percival, B. Ouyang, C. N. Hewitt, R. L. Jones, L. R. Crilley, L. J. Kramer, W. J. F. Acton, W. J. Bloss, S. Saksakulkrai, J. Xu, Z. Shi, R. M. Harrison, S. Kotthaus, S. Grimmond, Y. Sun, W. Xu, S. Yue, L. Wei, P. Fu, X. Wang, S. R. Arnold, D. E. Heard
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 5679-5697 (2023)
The impact of heterogeneous uptake of HO2 on aerosol surfaces on radical concentrations and the O3 production regime in Beijing in summertime was investigated. The uptake coefficient of HO2 onto aerosol surfaces, γHO2, was calculated for the AIRPRO
Externí odkaz:
https://doaj.org/article/81944c073cea42969e79a063ef590b28