Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Environmental materials"”.
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Evaluation of environmental materials as thermal witness materials
New and complex energetic materials are under development for achieving tunable pyrotechnical events for applications such as neutralization of biological weapons, bunker busters and many others. To guide the development of hybrid materials, the pyrotechnical environment they produce requires …
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Freestyle Bearing: Work, Play, and Synergy in the Practice of Everyday Life Among Mongolian Reindeer Pastoralists
… sensory-rich, versatile manipulation of environmental materials, as well as extensive geographic knowledge and frequent experiences of risk in remote, rugged terrain and powerful meteorological conditions impossible to completely avoid. These lifestyles catalyze the development of …
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Magnetic Characteristics of Carboniferous Continental Depositional Systems: Implications for the Recognition of Depositional Hiatuses
… studies into ancient systems. In cases where environmental materials have been subjected to diagenetic alteration two questions come to mind: 1) What part of the magnetic signal is preserved in the rocks; and 2) can the preserved signal be used to infer/identify magnetic patterns that are …
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An assessment of environmental awareness towards sustainable development among selected grade twelve pupils in Lusaka District
This study was undertaken to assess environmental awareness towards sustainable development among selected grade twelve secondary school pupils in Lusaka District. The study used questionnaires, focus group schedules, and semi-structured interviews to collect data from the field. The main …
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Nuclear warhead monitoring : a study of photon emissions from fission neutron interactions with high explosives as a tool in arms control verification
… of the signal experimentally using surrogate materials to represent the warhead's weapons-grade plutonium and HE. The experiment did not show the expected signals. This motivated a simulation of the mock-up experiment using the radiation transport code MCNP6 to help understand the observed …
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Determination of actinide elements in environmental samples by ICP-MS
… analytes. Comparative analyses of reference materials and natural water samples from Plymouth and Dartmoor demonstrated significant improvement in precision and speed of analysis by using TRU-Spec coupled to ICP-MS compared with alpha spectrometry. Further applications of the TRU-Spec resin …
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Understanding and Controlling Wettability of Carbon Powders for PEM Fuel Cell Applications
… understand and control the wettability of carbon materials for their use in PEMFCs. The droplet impacting (DI) method was first used to study the wettability of conventional, microporous Vulcan® carbon (VC)/Nafion composites, showing that the wettability varies with VC content (from hydrophilic to …