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.
Results
Showing 1 to 6 of 6 for “"EVLA"”.
-
EVLA imaging of methanimine and hydrogen cyanide in Arp 220
… 220, taken with the Expanded Very Large Array (EVLA) in A configuration. The 5289.8 MHz \meth\ line was detected in emission toward the western nucleus, but not toward the eastern nucleus. The 6731.9 MHz HCN line was detected in absorption toward the western nucleus, but not toward the eastern …
-
Optimising outcomes in the treatment of lower limb varicose veins
… therapy, especially endovenous laser ablation (EVLA) in the last two decades. This thesis focuses on the optimisation of outcomes in the management of this very common condition.Four studies were performed to evaluate varicose vein treatment modalities and outcomes, investigating key issues such …
-
Minimally invasive treatment of venous insufficiency using endovenous laser ablation
… technique of endovenous laser ablation (EVLA) appeared to have the highest technical efficacy with a good safety record. Objectives Three studies were performed with the aim of perfecting the ablative procedure and evaluating it against the gold standard of conventional surgery. Study 1 …
-
Modification of Large Reflector Antennas for Low Frequency Operation
… are designed for the Expanded Very Large Array (EVLA) to cover the range of 50-250~MHz. A method of moments (MoM) model of an EVLA antenna is developed for this purpose. The new design shows performance comparable to the existing 4 m system on the EVLA in the range of 50-88~MHz, and introduces …
-
Radio Observations of Discs around Young Stellar Objects
… cm and mm wavelengths using e-MERLIN and the EVLA respectively. We study the cold dust in the disc of DG Tau B by looking at its spectral energy distribution (SED). We also analyse the proper motions of DG Tau B and the classical T Tauri star DG Tau A to determine if they are a binary. We fit …
-
Characterization of Radio Emission from Young Stellar Objects
… of 66 young stellar systems with the Disks@EVLA project at 5.8 GHz, 21 GHz, 34 GHz, and 41 GHz. These findings are analyzed in the context of possible emission mechanisms, connecting to the physics that explains what we are detecting. By consulting various models and theories on …