Jason J. Miller

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Captive breeding is a commonly used strategy for species conservation. One risk of captive breeding is domestication selection--selection for traits that are advantageous in captivity but deleterious in the wild. Domestication selection is of particular concern for species that are bred in captivity for many generations and that have a high potential to(More)
This paper presents the effects of structural composite material loading on a broadband LPDA. The proposed antenna operates from 350–750 MHz and has a unique bi-layer design where the two antenna trace layers are disposed of on two separate fiberglass composite skin surfaces. The effects of the presence of a tubular structural member on the antenna(More)
A broadband high-gain bi-layer log-periodic dipole array (LPDA) is introduced for conformal load bearing antenna structures (CLASs) applications. Under the proposed scheme, the two layers of the LPDA are printed on two separate thin dielectric substrates which are substantially separated from each other. A meander line geometry is adapted to achieve size(More)
PURPOSE To describe fat graft hypertrophy after autologous fat transfer. METHODS Case report. RESULTS Noticeable hypertrophy of autologous fat grafts at approximately 10-year follow-up. CONCLUSIONS This case report demonstrates the unpredictable nature of autologous fat grafting. Clinicians should be aware of this potential complication of fat(More)
Current treatments for gait pathologies associated with neuromuscular disorders may employ a passive, rigid brace. While these provide certain benefits, they can also cause muscle atrophy. In this study, we examined NiTi shape memory alloy (SMA) wires that were annealed into springs to develop an active, soft orthotic (ASO) for the knee. Actively controlled(More)
A conformal pixelated pattern reconfigurable Yagi-Uda array is proposed. The array operates at around 2.5 GHz and can steer the beam in the 45 and -45 degree directions with the help of RF switches and a metal reflector placed 1 inch below the array surface.
The study and design of an aperture coupled MEMS reconfigurable pixel patch antenna is proposed for operation under the CLAS concept. By activating and deactivating certain sections of a pixelated area the antenna is reconfigured in three frequency bands within 1-2 GHz. Simulation results show that the antenna bandwidth ranges from 5% to 25% and the peak(More)
The experimental and simulation studies of an aperture coupled reconfigurable pixelated patch antenna for CLAS applications is presented. The antenna active dimensions are reconfigured to attain a wide swath of bandwidths within the 1-2 GHz frequency range. Simulated return loss bandwidths are between 8%-26% while measured bandwidths are between 6%-24% when(More)
The simulated studies showing the effect of DC bias lines on an aperture coupled reconfigurable pixelated patch antenna for CLAS applications is presented. The simulations show significant deterioration in S11 and gain for all operating modes when copper bias wires are introduced. A solution utilizing very high sheet resistance bias lines in place of copper(More)