Zobrazeno 1 - 10
of 72
pro vyhledávání: '"P. G. Langdon"'
Autor:
H. Mackay, G. Plunkett, B. J. L. Jensen, T. J. Aubry, C. Corona, W. M. Kim, M. Toohey, M. Sigl, M. Stoffel, K. J. Anchukaitis, C. Raible, M. S. M. Bolton, J. G. Manning, T. P. Newfield, N. Di Cosmo, F. Ludlow, C. Kostick, Z. Yang, L. Coyle McClung, M. Amesbury, A. Monteath, P. D. M. Hughes, P. G. Langdon, D. Charman, R. Booth, K. L. Davies, A. Blundell, G. T. Swindles
Publikováno v:
Climate of the Past, Vol 18, Pp 1475-1508 (2022)
The 852/3 CE eruption of Mount Churchill, Alaska, was one of the largest first-millennium volcanic events, with a magnitude of 6.7 (VEI 6) and a tephra volume of 39.4–61.9 km3 (95 % confidence). The spatial extent of the ash fallout from this event
Externí odkaz:
https://doaj.org/article/1043321e4a7c4efc910afcd2d9f7d724
Autor:
A. G. Brown, M. Van Hardenbroek, T. Fonville, K. Davies, H. Mackay, E. Murray, K. Head, P. Barratt, F. McCormick, G. F. Ficetola, L. Gielly, A. C. G. Henderson, A. Crone, G. Cavers, P. G. Langdon, N. J. Whitehouse, D. Pirrie, I. G. Alsos
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Abstract Direct evidence of ancient human occupation is typically established through archaeological excavation. Excavations are costly and destructive, and practically impossible in some lake and wetland environments. We present here an alternative
Externí odkaz:
https://doaj.org/article/ec2d7174ce994816b64c63277f7949b8
Autor:
K. L. Davies, R. D. Pancost, M. E. Edwards, K. M. Walter Anthony, P. G. Langdon, L. Chaves Torres
Publikováno v:
Biogeosciences, Vol 13, Iss 8, Pp 2611-2621 (2016)
Cryospheric changes in northern high latitudes are linked to significant greenhouse gas flux to the atmosphere, for example, methane that originates from organic matter decomposition in thermokarst lakes. The set of pathways that link methane product
Externí odkaz:
https://doaj.org/article/68f4b458102640adad8f4d4ece88e3e9
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 3448-3462 (2024)
Advanced structural materials are expected to display significantly improved mechanical properties and this may be achieved, at least in part, by refining the grain size to the submicrometer or the nanocrystalline range. This report provides a detail
Externí odkaz:
https://doaj.org/article/f69f7a4974944cd19241811af9bfa278
Autor:
Madeline B. Searcy, Randolph K. Larsen, Bradley T. Stevens, Yang Zhang, Hongjian Jin, Catherine J. Drummond, Casey G. Langdon, Katherine E. Gadek, Kyna Vuong, Kristin B. Reed, Matthew R. Garcia, Beisi Xu, Darden W. Kimbrough, Grace E. Adkins, Nadhir Djekidel, Shaina N. Porter, Patrick A. Schreiner, Shondra M. Pruett-Miller, Brian J. Abraham, Jerold E. Rehg, Mark E. Hatley
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-23 (2023)
Abstract Fusion-positive rhabdomyosarcoma (FP-RMS) driven by the expression of the PAX3-FOXO1 (P3F) fusion oncoprotein is an aggressive subtype of pediatric rhabdomyosarcoma. FP-RMS histologically resembles developing muscle yet occurs throughout the
Externí odkaz:
https://doaj.org/article/af11c11b372b412d83edd57dfaac71cf
Publikováno v:
Ecological Indicators, Vol 159, Iss , Pp 111656- (2024)
Ecosystem functions in wetlands are increasingly degrading under the multiple stresses of climate change and human disturbances. Traditional wetland bioassessment is usually based on taxonomic approaches but this approach has limitations. To explore
Externí odkaz:
https://doaj.org/article/31903f246d844fbdac5aa354f9743dca
Publikováno v:
Journal of Magnesium and Alloys, Vol 11, Iss 7, Pp 2260-2284 (2023)
Magnesium alloys are of considerable current interest for use as degradable implants due to their unique properties including biodegradability, biocompatibility, low density and adequate mechanical properties. Nevertheless, there is a need to further
Externí odkaz:
https://doaj.org/article/7cbb7668d8054fca8adfb1a7383dd838
Publikováno v:
Metals, Vol 14, Iss 7, p 778 (2024)
An analysis of the processes of plastic deformation and acoustic relaxation in a high-entropy alloy, Al0.5CoCrCuFeNi, was carried out. The following were established: dominant dislocation defects; types of barriers that prevent the movement of disloc
Externí odkaz:
https://doaj.org/article/078678cc538d425dba40e390f728452c
Autor:
Denise C. Machado, Paula Cibely Alves Flausino, Yi Huang, Paulo Roberto Cetlin, Terence G. Langdon, Pedro Henrique R. Pereira
Publikováno v:
Journal of Materials Research and Technology, Vol 24, Iss , Pp 2850-2867 (2023)
Experiments were conducted to assess the effect of processing temperature on the hardness evolution, microstructure and the flow properties of an annealed Al–3Mg alloy processed by high-pressure torsion (HPT) at either 300 or 450 K. The results dem
Externí odkaz:
https://doaj.org/article/3a50be1290794609b7766084a6ff73ca
Publikováno v:
Journal of Materials Research and Technology, Vol 23, Iss , Pp 3362-3423 (2023)
The CoCrFeNiMn multicomponent is one of the most widely and best studied of all high-entropy alloys (HEAs) since its exceptional properties suggest potential uses as a structural material in many industrial applications. In practice, a good balance b
Externí odkaz:
https://doaj.org/article/8ccc8983c66f4425a30b59cfb4c5c4bb