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 “"VOC's"”.
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In vitro Microdialysis Sampling Collection of Volatile Organic Compounds (VOC's), Dodecafluoropentane (DDFP) and Isoflurane
… new analytical method described here shows that VOC’s can be collected with microdialysis sampling technique and thus serves as a starting point for in vivo collections has been found.</p>
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Plasticized lignin-PVC blends for flooring
… to microbial attack, to decrease the amount of VOC's release, and to explore a market for lignin. To evaluate the role of lignin, a series of flooring materials with different proportions of lignin, are obtained, based on the investigation into the use of plasticizers for reducing the degree of …
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The study of volatile organic compounds in urban and indoor air
… of using a unified approach to the study of VOC's. This is achieved by the development of an air sampling method that uses solid phase extraction cartridges. By investigating many aspects of air sampling mechanisms the results show that a simple yet efficient method for the sampling of VOC in …
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[ORIGINS]_Constructing A Spatial Lexicon: A Catalyst For Finding Place_[Locatedness]
… and the locale where this all began, within the VOC's Company Gardens, Cape Town, Southern Africa. Ideas are underpinned through the eyes of semantics, of origins, and through philosophers that look to challenge place, who look to subvert the status quo. The aim is to provide a speculative look …
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Advanced control techniques and sensors for gas engines with NSCR
… Hydrocarbons (THC), Volatile Organic Compounds (VOC's), and formaldehyde (CH2O). This range is difficult to maintain as transients are introduced into the system. Current fuel control technologies utilizing lambda sensor feedback are reported to be unable to sustain these demands for extended …
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Air quality assessment and the use of specific markers to apportion pollutants to source.
… of pyrrole to other volatile organic compounds (VOC's) in ETS. Samples from the field study were used to produce apportionment percentage levels of benzene, toluene, o-xylene and p+m-xylene associated with ETS.In addition the use of tree bark as a atmospheric sink for airborne particulates was …
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Studies on severe acute respiratory syndrome coronavirus type -2 in Northern South Africa
… investigate SARS-CoV-2 variants of concern (VOC) circulating in the population, and determine the prevalence of people infected in the Vhembe and Mopani districts. Thirdly, through WBS, to describe the molecular epidemiology of SARS-CoV-2 and document the respiratory viruses occurring in the …