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210 results on '"Beckett, Peter"'

8. Effects of large-scale restoration on understory plant communities in an industrial landscape.

Author

Munford, Kimber E., Humphrey, William, Levasseur, Patrick A., Beckett, Peter, and Watmough, Shaun A.

Subjects
SOIL chronosequences, SOIL horizons, PLANT communities, COPPER in soils, PLANT succession
Abstract

Starting in the mid 1970's, researchers, industry leaders, and residents collaborated on one of the world's largest regreening programs in the industrial region of Sudbury, Canada. The Sudbury Regreening Recipe included the application of crushed dolomitic limestone, nitrogen–phosphorus–potassium fertilizers, grass–legume seed mixtures across 8200 ha, and subsequent tree planting across 25 000 ha of acidic metal-contaminated land. The current study evaluated shifts in understory vegetation diversity and soil geochemistry on a chronosequence of sites treated the same way between 1982 and 2012. Fifty-six plant species were identified across the 24 sites, only four of which were planted in the initial remediation effort. Key factors influencing plant community composition and diversity were related to shifts in soil properties over time: bulk density, LFH layer depth, and mineral soil horizon pH. Plant communities differed with stand age and rocky sites had significantly different plant communities and lower canopy cover than less rocky sites. Mineral soil horizon pH increased with age, reflecting the movement of applied dolomite in soil. Despite high concentrations of total copper and nickel in soil, plant succession patterns were generally similar to those in naturally recovering forests demonstrating the overall success of the restoration program. [ABSTRACT FROM AUTHOR]

Published
2024
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16. Liming of Acid and Metal Contaminated Catchments for the Improvement of Drainage Water Quality

Author

Gunn, John, Sein, Rod, Keller, Bill, Beckett, Peter, Satake, Kenichi, editor, Shindo, Junko, editor, Takamatsu, Takejiro, editor, Nakano, Takanori, editor, Aoki, Shigeru, editor, Fukuyama, Tsutomu, editor, Hatakeyama, Shiro, editor, Ikuta, Kazukamasa, editor, Kawashima, Munetsugu, editor, Kohno, Yoshihisa, editor, Kojima, Satoru, editor, Murano, Kentaro, editor, Okita, Toshiichi, editor, Taoda, Hiroshi, editor, Tsunoda, Kinichi, editor, and Tsurumi, Makoto, editor

Published
2001
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20. Clinical Biochemistry

Author

Simon W. Walker, Geoffrey J. Beckett, Peter Rae, Peter Ashby

Published
2013

24. Contributors

Author

Alves, Lander de Jesus, Amin, Rabab S., Baig, Shams Ali, Balaram, V., Balasundaram, Gowtham, Beckett, Peter, Bocharnikova, E., Carrilho, Elma Neide Vasconcelos Martins, Chen, Qiuwen, Dionisiou, Nina S., El-Khatib, Kamel M., Favas, P.J.C., Fetohi, Amani E., Gerassimidou, Spyridoula, Hahladakis, John N., Hayat, Zafar, Huang, Dandan, Iacovidou, Eleni, Jitto, Ponlakit, Khater, Dena Z., Koptsik, Galina, Koptsik, Sergey, Korotkov, Vladimir, Kumar, Adarsh, Lin, Yuqing, Lo, Shang-Lien, Mahmoud, Ghada Abd-Elmonsef, Maiti, Subodh Kumar, Matichenkov, V., Matsi, Theodora, Nakbanpote, Woranan, Nunes, Fábio Carvalho, Prasad, Majeti Narasimha Vara, Sarkar, S.K., Shih, Kaimin, Soares, Marcio Roberto, Spiers, Graeme, Tyagi, Vinay Kumar, Ullah, Imdad, Xu, Qiyong, Yan, Hanlu, Zhao, Qi, and Zhou, Ying

Published
2024
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30. Sudbury, Canada

Author

Lautenbach, William, primary, Monet, Stephen, additional, Beckett, Peter, additional, and Gunn, John, additional

Published
2007
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31. Problems involving heat transfer with change of phase

Author

Beckett, Peter Michael

Subjects
621.4022, Applied mathematics
Abstract

In Part I, two-dimensional laminar film condensation is investigated on the basis of boundary layer theory. The case of flow past a semi-infinite flat plate, which is aligned parallel to a uniform mainstream with velocity Um*(x)=Uo*, is discussed by means of a perturbation analysis for both small and large rates of cooling at the surface. Predictions, for this similar solution of the boundary layer equations, are compared with exact numerical solutions in the case of steam-water condensation. The perturbation analysis is then extended to non-similar flows and results for steam-water condensation are compared with numerical solutions obtained using the Hartree-Womersley method. The cases Um*(x)=Uo* sin(x/z) and Um*(x)=Uo* (1- 1/8 x/c) are used for comparison. The numerical solutions are also studied to discuss separation in these condensation problems. Part II is devoted to the solidification of a cylindrical bar, initially at fusion temperature, when the outer surface temperature is lowered below fusion. The governing equations are solved numerically to obtain accurate results for the solidification process and. in addition a power series in the non-dimensional time is developed. Terms of this series are found both analytically and numerically. Interest surrounds the radius of convergence of such a series because of the similarity between the movements of the solidification front and the growth of the boundary layer for flow through a cylinder.

Published
1971

40. NOTES AND QUERIES

Author

Skinner, H. D., Beckett, Peter, Thornton, Jack, and Taylor, R. M. S.

Published
1955

50. Book reviews

Author

C.D., Breathnach, C. S., Shaw, K. M., O’Donovan, D. K., Temperley, I. J., Walsh, Anthony, Fennelly, James J., Devlin, J. G., Solomons, Michael, Beckett, Peter G. S., Tomkin, Alexander, and Chambers, P. L.

Published
1970
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