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- Choularton, T. W., et al.
(author)
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The Great Dun Fell Cloud Experiment 1993 : An overview
- 1997
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In: Atmospheric Environment. - 1352-2310. ; 31:16, s. 2393-2405
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Journal article (peer-reviewed)abstract
- The 1993 Ground-based Cloud Experiment on Great Dun Fell used a wide range of measurements of trace gases, aerosol particles and cloud droplets at five sites to study their sources and sinks especially those in cloud. These measurements have been interpreted using a variety of models. The conclusions add to our knowledge of air pollution, acidification of the atmosphere and the ground, eutrophication and climate change. The experiment is designed to use the hill cap cloud as a flow-through reactor, and was conducted in varying levels of pollution typical of much of the rural temperate continental northern hemisphere in spring-time.
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- Hourahine, B., et al.
(author)
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Optically active hydrogen dimers in silicon
- 1999
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In: Physica. B, Condensed matter. - 0921-4526 .- 1873-2135. ; 273-274, s. 176-179
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Journal article (peer-reviewed)abstract
- First-principles calculations are used to explore the structure and properties of several defects which are prominent luminescent centers in Si. The trigonal defects B41 and B711, which are known to contain two hydrogen atoms in equivalent and inequivalent sites, respectively, are attributed to a hexavacancy containing two H atoms in different configurations. It is suggested that the J luminescence centers arises from a stable hexavacancy without hydrogen atoms
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