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 “"Wide-bore"”.
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Comparison of packed and wide-bore, open-tubular gas chromatographic columns
Wide-bore, fused-silica capillary columns can be an excellent replacement for packed columns in many cases. They can provide higher surface inertness and thermal stability, as well as higher efficiency or speed of analysis. Wide-bore, open-tubular (WBOT) columns with thick films have higher sample …
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Comprehensive MRI Safety Assessment: Impact of Strain-Relief Loop Position, Lateral Movement, and Varying Field Strengths on RF-Induced Heating of Medical Implants
… movement on RF heating in AIMDs and PIMDs within wide-bore 3T MRI machines. Medical devices are typically labeled with the assumption that patients are centered laterally, but wide-bore systems allow lateral movement, which may alter labeling. Lastly, the dissertation examines the RF-induced …
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An investigation of the effects of nasogastric tubes on the young, normal swallowing mechanism
… addition, the differential effects of fine and wide-bore nasogastric tubes on swallowing function, were targeted for investigation. Only young, normal subjects were studied, to eliminate age-related swallowing changes (Robbins et al., 1992). The method of videofluoroscopy was used to determine …
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Optimization of capillary GC/FTIR for complex sample analysis
… was found to be unmatched by packed columns or wide bore glass capillaries. A consequence of using more narrow bore columns, however, is lower sample capacity and less IR detectability. Two 6 cm light pipes and a more narrow 40 cm lightpipe were compared with respect to both optical throughput …
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A Hydrodynamic Method for Measuring Aqueous Nanoparticle Surface Interactions
… The analytical methods developed utilize and a wide-bore hydrodynamic chromatography to induce a partial hydrodynamic separation between nanoparticles and dissolved solutes. Then, using deconvolution techniques, two separate elution profiles for the nanoparticle and organic solute can be …
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Mesophilic fermentative hydrogen production from sewage biosolids
… these challenges, a novel reactor design using wide bore tubing and computer controlled pumping equipment was successfully used to construct a working continuously fed bio-reactor. A combination of heat treatment at 70°C for one hour and pre-treatment with a commercially available food …
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Source identification of trichloroacetic acid with preparative capillary gas chromatography and accelerator mass spectrometry
… appropriate dimensions. In the first dimension a wide-bore high-capacity thick film capillary coated with a non-polar stationary phase was used. For further removal of by-products the fraction containing the analyte was cryogenically collected, and the final purity refinement was effected on a …