8,109 research outputs found
Structure and dynamics in nanoionic materials
Nanomaterials, materials with particle dimensions less than 100 nm, show a range of unusual properties when compared with their bulk counterparts. Atomic transport is one of these properties and nanomaterials have been reported as having exceptionally high diffusion coefficients. In the case of ionic materials the atomic transport is important in a number of technological applications where they are used as solid electrolytes, for example in sensors, batteries and fuel cells. Hence ionic nanomaterials often referred to as nanoionics, can offer the means of producing electrolytes with improved performance. This contribution will examine the mechanisms of atomic transport in nanoionics in two model materials, zirconia and lithium niobate. Since an understanding of these mechanisms is dependent on knowledge of the microstructure of the materials consideration will also be given to the structural characterisation of the materials, with a focus on X-ray absorption spectroscopy. The use of this technique to characterise mesoporous a-Fe2O3 is also discussed
Information technology revolution in the Republic of Korea
노트 : Title: Bytes and Bullets in KoreaChapter 3 title: Information Technology Revolution in the Republic of Kore
A high-gain omnidirectional satellite antenna technique Final report
High gain omnidirectional satellite system design, using planar and circular multiple beam arrays and solid state switchin
Liquid rocket performance computer model with distributed energy release Interim final report, 15 Aug. 1969 - 15 Aug. 1970
Liquid propellant rocket engine performance computer program with distributed energy releas
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