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111.
112.
To exploit the parallelism of optics in data processing,a suitable number system and an efficient encoding/decoding scheme for handling the data are very essential.In the field of optical computing and parallel information processing,several number systems like binary,quaternary,octal,hexadecimal,etc.have been used for different arithmetic and algebraic operations.Here,we have proposed an all-optical conversion scheme from its binary to its other 2n radix based form with the help of terahertz optical asymmetric demultiplexer (TOAD) based tree-net architecture. 相似文献
113.
For a non-compact harmonic manifold M, we establish an integral formula for the derivative of a harmonic function on M. As
an application we show that for the harmonic spaces having minimal horospheres, bounded harmonic functions are constant. The
main result of this article states that the harmonic spaces having polynomial volume growth are flat. In other words, if the
volume density function Θ of M has polynomial growth, then M is flat. This partially answers a question of Szabo namely, which
density functions determine the metric of a harmonic manifold. Finally, we give some natural conditions which ensure polynomial
growth of the volume function. 相似文献
114.
X-ray absorption spectroscopy studies of the polycrystalline SrRu0.5Mn0.5O3 have been performed at Ru, Mn-L2,3 edges. The 2p-->t2g related peak at the Ru-L2 edge is more intense than the Ru-L3 edge and a shift of the 2p-->eg related peak by approximately 0.8 eV to higher energy than that of the Ru(IV) compound, SrRuO3 is observed. In combination with a crystal field multiplet calculation approach, a possible anomalous change in the spectral features is explained based on the existence of a redox ionic pair involving Ru(IV)/Ru(v)<-->Mn(III)/Mn(IV). 相似文献
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Kuzmann E. Nath A. Chechersky V. Li S. Wei Y. Chen X. Li J. Homonnay Z. Gál M. Garg V. K. Klencsár Z. Vértes A. 《Hyperfine Interactions》2002,139(1-4):631-639
57Fe transmission Mössbauer spectroscopy and X-ray diffractometry were used to study - and -polymorphs of iron phthalocyanines (FePc) to get information about their oxygenation in connection with controlled pyrolysis of flat layered phthalocyanines initiated by radicals at relatively low temperatures, to form acicular carbide particles encaged in carbon. Mössbauer spectroscopy and XRD revealed that the oxygenation of both - and -polymorphs of FePc was successfully achieved. New Mössbauer spectral components (doublets) appeared upon the oxygenation in both and FePc. This can be attributed to iron microenvironments containing oxygen between the layers of iron phthalocyanines. 相似文献
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