Showing papers by "Ian McDonald published in 2011"
Patent•
18 Oct 2011
TL;DR: A client processor including a communications receiver for receiving file fragments for the device, a micro-controller system including a microcontroller and a programmable non-volatile memory system, for building and storing application and data files from the fragments, and executing an application of the device by processing at least one application file and associated data identified by configuration instructions included in at least 1 of the fragments as mentioned in this paper.
Abstract: A client processor including a communications receiver for receiving file fragments for the device, a micro-controller system including a microcontroller and a programmable non-volatile memory system, for building and storing application and data files from the fragments, and executing an application of the device by processing at least one application file and associated data identified by configuration instructions included in at least one of the fragments.
36 citations
01 May 2011
TL;DR: In this paper, a sol-gel process was used to prepare samples of Y 2 O 3 powder that were doped and codoped with Nd3+ and Yb3+ to study the energy transfer between the dopant species.
Abstract: Using a sol-gel process, we prepared samples of Y 2 O 3 powder that were doped and codoped with Nd3+ and Yb3+. Samples were doped with different amounts of the rare earth ions in order to study the energy transfer between the dopant species. It was confirmed that energy transfer can be achieved allowing the Yb3+ ions to be excited using Nd3+ absorption peaks in the UV and visible wavelength regions. Optimum energy transfer occurred in samples doped with 0.5 at% Nd and 2 at% Yb.