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  • M Mattsson, B Herrmann, David, B Loubet, Riedo, M R Theobald +10 others
  • 2008
The Open University's repository of research publications and other research outputs Temporal variability in bioassays of the stomatal ammonia compensation point in relation to plant and soil nitrogen parameters in intensively managed grassland Journal Article (2009). Temporal variability in bioassays of the stomatal ammonia compensation point in relation(More)
  • M Mattsson, B Herrmann, M David, B Loubet, M Riedo, M R Theobald +4 others
  • 2008
The exchange of ammonia between crop canopies and the atmosphere depends on a range of plant parameters and climatic conditions but little is known about effects of management factors. We have here investigated the ammonia exchange potential of a grass sward dominated by Lolium perenne in response to cutting and fertilization.
  • R Valdiviez, N Patterson, J Ledford, D Bruhn, R Lafave, F Martinez +3 others
  • 2000
The 6.7-MeV, 100-mA proton beam being produced in the Low Energy Demonstration Accelerator (LEDA) RFQ will be injected into a 52-magnet lattice in order to study the formation of beam halo [1]. The LEDA RFQ beam has a rms size of 1 mm. At nine longitudinal locations along the lattice an assembly that incorporates both a wire scanner and a halo-scraper(More)
  • D Bruhn, K R Albert, T N Mikkelsen, D Bruhn, P Ambus
  • 2016
(2013). UV-induced carbon monoxide emission from living vegetation. Biogeosciences Discussions, 10(6) pp. 9373–9388. For guidance on citations see FAQs. Copyright and Moral Rights for the articles on this site are retained by the individual authors and/or other copyright owners. For more information on Open Research Online's data policy on reuse of(More)
To understand what governs the patterns of net ecosystem exchange of CO₂, an understanding of factors influencing the component fluxes, ecosystem respiration and gross primary production is needed. In the present paper, we introduce an alternative method for estimating daytime ecosystem respiration based on whole ecosystem fluxes from a linear regression of(More)
This paper deals with the problem of non-linear droplet oscillations, whereas eeects of liquid viscosity are of our special interest. In the experimental part nite amplitude, axial-symmetric oscillations of small liquid droplets in a gaseous environment are studied. Experimental results are compared with available theoretical models. It was found that for a(More)
Plants are a major atmospheric source of volatile organic compounds (VOCs). These secondary metabolic products protect plants from high-temperature stress, mediate in plant-plant and plant-insect communication, and affect our climate globally. The main challenges in plant foliar VOC research are accurate sampling, the inherent reactivity of some VOC(More)
  • D Bruhn, K R Albert, T N Mikkelsen, D Bruhn
  • 2013
(2013). UV-induced carbon monoxide emission from living vegetation. Biogeosciences Discussions, 10(6) pp. 9373–9388. For guidance on citations see FAQs. Copyright and Moral Rights for the articles on this site are retained by the individual authors and/or other copyright owners. For more information on Open Research Online's data policy on reuse of(More)
Different endodontic post systems--Permador metal posts, GT posts, Para posts, and Erlangen posts--have been compared with each other in a study. After casting a Pd-Ag-Sn-In-alloy to the posts, these experimental post-retained cores were fixed with zinc phosphate cement in the prepared root canals of extracted premolars and subjected to fatigue tests. With(More)
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