Zobrazeno 1 - 10
of 54
pro vyhledávání: '"R. P. Skelton"'
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 57 (2024)
To learn more about the properties of the Vela Supercluster (VSCL), located behind the Milky Way at cz ∼ 18,000 km s ^−1 , we determine the K _s -band luminosity function (LF) of VC04, the richest known galaxy cluster in the VSCL, and two other V
Externí odkaz:
https://doaj.org/article/65d69358d8bd4aa6833dcc752b91e3a5
Autor:
P. I. Palmer, S. O'Doherty, G. Allen, K. Bower, H. Bösch, M. P. Chipperfield, S. Connors, S. Dhomse, L. Feng, D. P. Finch, M. W. Gallagher, E. Gloor, S. Gonzi, N. R. P. Harris, C. Helfter, N. Humpage, B. Kerridge, D. Knappett, R. L. Jones, M. Le Breton, M. F. Lunt, A. J. Manning, S. Matthiesen, J. B. A. Muller, N. Mullinger, E. Nemitz, S. O'Shea, R. J. Parker, C. J. Percival, J. Pitt, S. N. Riddick, M. Rigby, H. Sembhi, R. Siddans, R. L. Skelton, P. Smith, H. Sonderfeld, K. Stanley, A. R. Stavert, A. Wenger, E. White, C. Wilson, D. Young
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 11753-11777 (2018)
We describe the motivation, design, and execution of the Greenhouse gAs Uk and Global Emissions (GAUGE) project. The overarching scientific objective of GAUGE was to use atmospheric data to estimate the magnitude, distribution, and uncertainty of
Externí odkaz:
https://doaj.org/article/f1805441b4004b3880f9272339a445a6
Autor:
S. N. Riddick, S. Connors, A. D. Robinson, A. J. Manning, P. S. D. Jones, D. Lowry, E. Nisbet, R. L. Skelton, G. Allen, J. Pitt, N. R. P. Harris
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Pp 7839-7851 (2017)
High methane (CH4) mixing ratios (up to 4 ppm) have occurred sporadically at our measurement site in Haddenham, Cambridgeshire, since July 2012. Isotopic measurements and back trajectories show that the source is the Waterbeach Waste Management Pa
Externí odkaz:
https://doaj.org/article/803abc4fe2a54b07bc1171dd274e0ccf
Autor:
R. P. Skelton
Publikováno v:
Materials at High Temperatures. 38:426-451
Ductilities generated after four types of creep test are compared: (i) constant load, (ii) constant stress (calculated); (iii) constant stress (from direct observation of the minimum section) and (...
Autor:
R. P. Skelton
Publikováno v:
Materials at High Temperatures. 34:121-133
It is shown that the assumption of unit (negative) slope in the well known Monkman–Grant plot of time to failure against minimum creep rate is too restrictive. By acknowledging observed slopes in the range 0.8–1, a ductility–strain-rate relatio
Autor:
R. P. Skelton
Publikováno v:
Materials at High Temperatures. 33:120-136
Strain-controlled (low-cycle fatigue type) experiments were performed on 12 different high temperature alloys (ferritic, austenitic, superalloys, single-crystal material, a directionally solidified alloy and two titanium alloys) in the range 550–95
Autor:
R. P. Skelton
Publikováno v:
Materials at High Temperatures. 32:323-339
Given total endurances of low cycle fatigue specimens, several empirical formulae enable an estimate to be made of ‘initiation’ cycles to a specific crack depth in a zone ranging from 20 to 400 μm from the surface. For greater depths, the cyclic
Autor:
R. P. Skelton
Publikováno v:
Materials at High Temperatures. 30:241-260
Reversed-load (low-cycle-fatigue type) experiments were carried out on 13 different high temperature alloys (ferritic, austenitic and superalloys, single crystal materials, a directionally solidified alloy and two titanium alloys) in the range 400–
Autor:
R. P. Skelton
Publikováno v:
Materials at High Temperatures. 30:183-201
This paper attempts to link the energies to failure involved in low-cycle fatigue at elevated temperature with those involved in forward creep. These energy levels are connected by a suitable sliding strain-rate scale. The principle is then applied t
Autor:
R. P. Skelton
Publikováno v:
Materials at High Temperatures. 30:99-116
This paper considers the likely strain concentration effects generated in the shoulder/gauge intersection region of typical specimens employed in low cycle fatigue tests at high temperatures. The starting point is taken as the well known elastic stre