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pro vyhledávání: '"D.L. Barnes"'
Akademický článek
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Autor:
R.P. Daanen, A.M. Emond, Jordi Cristobal, B.J. Minsley, Anupma Prakash, Gwen Holdmann, A.K. Liljedahl, Katey Walter-Antony, V.E. Romanovsky, D.L. Barnes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53ea2407fbd2194262c5781227e613a2
https://doi.org/10.14509/29822
https://doi.org/10.14509/29822
Publikováno v:
Mechanics of Materials. 46:123-128
Most materials compress axially in all directions when loaded hydrostatically. Contrary to this, some materials have been discovered that exhibit negative linear compressibility and, as such, expand along a specific axis or plane. This paper analyses
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b3852bf35d95f91fb7ba4814ba02215
https://doi.org/10.1016/j.mechmat.2011.12.007
https://doi.org/10.1016/j.mechmat.2011.12.007
Akademický článek
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K zobrazení výsledku je třeba se přihlásit.
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Publikováno v:
Journal of Power Sources. 173:935-942
Fuel cell power for locomotives combines the environmental benefits of a catenary-electric locomotive with the higher overall energy efficiency and lower infrastructure costs of a diesel-electric. A North American consortium, a public–private partn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0a196e2be31534b398bb8ff8956ae7b
https://doi.org/10.1016/j.jpowsour.2007.08.045
https://doi.org/10.1016/j.jpowsour.2007.08.045
Autor:
D.L. Barnes, C.P. Dempsey
Publikováno v:
Journal of the Grassland Society of Southern Africa. 9:149-157
Spring‐burnt sourveld was stocked with Merino lambs after three different periods of deferment from the time of start of growth in spring. During three seasons, average seasonal livemass gains on veld which was stocked shortly after the start of gr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbe290271c520b8032086f7486262d1e
https://doi.org/10.1080/02566702.1992.9648316
https://doi.org/10.1080/02566702.1992.9648316
Autor:
D.L. Barnes
Publikováno v:
Journal of the Grassland Society of Southern Africa. 9:126-134
Surveys have shown that the grazing value of veld in the south‐eastern Transvaal is well below the estimated potential. Extension efforts aimed at rectifying the situation have been unsuccessful in that most recommendations have not been acceptable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8c8784e06adf85b0bae7132d7eee83f
https://doi.org/10.1080/02566702.1992.9648312
https://doi.org/10.1080/02566702.1992.9648312
Autor:
D.L. Barnes, C.P. Dempsey
Publikováno v:
Journal of the Grassland Society of Southern Africa. 9:83-89
The performance of wether lambs on crownvetch (Coronilla varia L.) pasture was determined for three seasons under five grazing procedures. These included continuous grazing and rotational grazing with a 7‐day period‐of stay and periods‐of‐abs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee7ceced0ab7f1094743890c0867bbe4
https://doi.org/10.1080/02566702.1992.9648304
https://doi.org/10.1080/02566702.1992.9648304
Autor:
R.P. Denny, D.L. Barnes
Publikováno v:
Journal of the Grassland Society of Southern Africa. 8:168-173
Two rotational grazing procedures, a four‐paddock system with a 10‐day period of stay and an eight‐paddock system with a 5‐day period of stay, were compared with continuous grazing on veld. The trial was conducted 40 km south of Bulawayo in Z
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61af06baa77906b7b1831a5d8af4a386
https://doi.org/10.1080/02566702.1991.9648285
https://doi.org/10.1080/02566702.1991.9648285