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Search: WFRF:(Kim Ramasamy) > (2016)

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  • Ramasamy, Madhumidha, et al. (author)
  • Influence of Microstructure and Surface Activation of Dual-Phase Membrane Ce0.8Gd0.2O2−δ–FeCo2O4 on Oxygen Permeation
  • 2016
  • In: Journal of The American Ceramic Society. - : Wiley. - 0002-7820 .- 1551-2916. ; 99:1, s. 349-355
  • Journal article (peer-reviewed)abstract
    • Dual-phase oxygen transport membranes are fast-growing research interest for application in oxyfuel combustion process. One such potential candidate is CGO-FCO (60 wt% Ce0.8Gd0.2O2−δ–40 wt% FeCo2O4) identified to provide good oxygen permeation flux with substantial stability in harsh atmosphere. Dense CGO-FCO membranes of 1 mm thickness were fabricated by sintering dry pellets pressed from powders synthesized by one-pot method (modified Pechini process) at 1200°C for 10 h. Microstructure analysis indicates presence of a third orthorhombic perovskite phase in the sintered composite. It was also identified that the spinel phase tends to form an oxygen deficient phase at the grain boundary of spinel and CGO phases. Surface exchange limitation of the membranes was overcome by La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) porous layer coating over the composite. The oxygen permeation flux of the CGO-FCO screen printed with a porous layer of 10 μm thick LSCF is 0.11 mL/cm2 per minute at 850°C with argon as sweep and air as feed gas at the rates of 50 and 250 mL/min.
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  • Rodrigues, Ian A., et al. (author)
  • Defining a Minimum Set of Standardized Patient-centered Outcome Measures for Macular Degeneration
  • 2016
  • In: American Journal of Ophthalmology. - : Elsevier BV. - 0002-9394 .- 1879-1891. ; 168, s. 1-12
  • Journal article (peer-reviewed)abstract
    • PURPOSE: To define a minimum set of outcome measures for tracking, comparing, and improving macular degeneration care.DESIGN: Recommendations from a working group of international experts in macular degeneration outcomes registry development and patient advocates, facilitated by the International Consortium for Health Outcomes Measurement (ICHOM).METHODS: Modified Delphi technique, supported by structured teleconferences, followed by online surveys to drive consensus decisions. Potential outcomes were identified through literature review of outcomes collected in existing registries and reported in major clinical trials. Outcomes were refined by the working group and selected based on impact on patients, relationship to good clinical care, and feasibility of measurement in routine clinical practice.
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