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 3 of 3 for “"Equivalency Factors"”.
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Evaluation of asphalt stabilized layer equivalency factors for use in airfield flexible pavement design
… In a 1970s era update to the CBR procedure, equivalency factors were developed to allow incorporation of stabilized layers into the airfield pavement structure. The equivalency factor is a ratio which identifies the required stabilized material layer thickness needed to replace a specified …
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Assessing the Effects of Chronic Neonicotinoid Insecticide Exposure on Aquatic Insects using Multiple Experimental Approaches
… I calculated acute (lethality) 14-day toxic equivalency factors (TEFs) for imidacloprid, clothianidin and thiamethoxam as 1.00, 1.05 and 0.14, respectively, and chronic (emergence inhibition) 40-day TEFs as 1.00, 1.62 and 0.11, respectively. To expand upon these single-species laboratory …
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Compound Events and Exposure Science: Characterizing Mixtures and Assessing Cumulative Risks Using Participatory Research Methods
… between contaminants, the use of Toxic Equivalency Factors (TEFs) is essential for evaluating the combined toxicity of as different compounds within the same chemical class exhibit varying degrees of toxicity. The fourth study used co-created community science data to investigates …