Zobrazeno 1 - 10
of 214
pro vyhledávání: '"R. A. Champion"'
Publikováno v:
Applied Animal Behaviour Science. 141:1-8
Grazing semi-natural grasslands may enhance their wildlife faunal diversity and abundance by modifying the plant species composition through exploiting the dietary choices of the domestic livestock, yet diet preferences in these grasslands are often
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::708adf7d7cf32e8a2ff7d49b8ac03dca
https://doi.org/10.1016/j.applanim.2012.07.003
https://doi.org/10.1016/j.applanim.2012.07.003
Publikováno v:
Grass and Forage Science. 67:111-118
There is increased global interest in the environmental impacts of farming, including the need to prevent the contamination of soil, water and air with excessive amounts of nitrogen (N) and phosphorus (P) in grazed systems. Reduction in grazing inten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62cdda07e5476859a86fc31556c0e815
https://doi.org/10.1111/j.1365-2494.2011.00826.x
https://doi.org/10.1111/j.1365-2494.2011.00826.x
Autor:
L. R. Matthews, R. A. Champion
Publikováno v:
Computers and Electronics in Agriculture. 57:115-122
There are few methods for measuring the motivation that livestock have to obtain resources. The objective of this work was to develop and test a prototype automatic system to measure feeding motivation in cattle. The system described arranges for ind
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fb23dc754b3ab12f4cdfc6141848a3b
https://doi.org/10.1016/j.compag.2007.02.008
https://doi.org/10.1016/j.compag.2007.02.008
Publikováno v:
Applied Surface Science. 253:3789-3798
Surface ions generated by electron stimulated desorption from mass spectrometer ion source grids are frequently observed, but often misidentified. For example, in the case of mass 19, the source is often assumed to be surface fluorine, but since the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8eb873834ef5c3904a9177f542a39b5c
https://doi.org/10.1016/j.apsusc.2006.07.093
https://doi.org/10.1016/j.apsusc.2006.07.093
Autor:
R. H. Champion
Publikováno v:
British Journal of Dermatology. 88:201-204
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f7c68433ae83230b929d6997876ad89
https://doi.org/10.1111/j.1365-2133.1973.tb07530.x
https://doi.org/10.1111/j.1365-2133.1973.tb07530.x
Publikováno v:
Applied Animal Behaviour Science. 95:79-87
Electronic animal identification was used to register when sheep moved from one place to another. Non-return gates were used to control the direction of travel of the sheep past electronic identification antennas at the boundary between two areas. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ccd9202bceb9b005b34432a69f8c841d
https://doi.org/10.1016/j.applanim.2005.02.009
https://doi.org/10.1016/j.applanim.2005.02.009
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 22:2056-2060
Typically, the mass spectral peak observed at 19 amu in residual gas analyzers at very high vacuum (VHV) and ultrahigh vacuum (UHV) has been attributed to fluorine. Using Fourier transform mass spectrometry (FTMS), the presence of the hydronium ion H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d6bf723a0065ebf39e18150b9d1ca6f
https://doi.org/10.1116/1.1784827
https://doi.org/10.1116/1.1784827
Publikováno v:
Applied Animal Behaviour Science. 88:61-76
The benefits of including clover in sheep pasture are well known, this study investigates a method to enhance these benefits by facilitating diet selection. Lactating ewes and their twin lambs grazed ryegrass (G; Lolium perenne cultivar ‘Parcour’
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3721e3a92ba5c659f7fbe08b005c127b
https://doi.org/10.1016/j.applanim.2004.02.011
https://doi.org/10.1016/j.applanim.2004.02.011
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 21:1796-1799
This brief report presents mass spectral resolution of H3O+ and F+ at mass 19 in a high vacuum system. Typically, this mass spectral peak observed in residual gas analyzers has always been attributed to fluorine. Using Fourier transform mass spectrom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::059165fc8a2c271112155966f8004beb
https://doi.org/10.1116/1.1590965
https://doi.org/10.1116/1.1590965
Publikováno v:
Surface Science. 538:211-218
The absolute secondary electron and anion emission probabilities for low energy ( − , N 2 + , Ar + , Ne + and He + impacting an oxygen-adsorbed Mg(0 0 0 1) single crystal surface have been measured as a function of oxygen exposure and of incident i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cb82df471647f8f23fdef945dad025c
https://doi.org/10.1016/s0039-6028(03)00740-4
https://doi.org/10.1016/s0039-6028(03)00740-4