Results 231 to 240 of about 364,659 (283)
Some of the next articles are maybe not open access.
On the Fade Duration Distribution in Nakagami Fading Channels
2007 IEEE International Conference on Communications, 2007During almost fifty years the fade duration distribution (FDD) of random signals has been an open research topic. However, for Nakagami fading channels, and in general for the great majority of non-Gaussian processes, closed form general solutions are still unknown.
A. Fernando Ramos-Alarcón +2 more
openaire +1 more source
The Fading Number of a Multiple-Access Rician Fading Channel
IEEE Transactions on Information Theory, 2009The fading number of a noncoherent two-user Ri-cian fading channel is derived. The fading number is the second term in the high-SNR expansion of the sum-rate capacity of this multiple-access channel. It is shown that the fading number is identical to the fading number of the single-user Rician fading channel that is obtained when the user seeing the ...
Gu-Rong Lin, Stefan M. Moser
openaire +1 more source
Clinical and Experimental Dermatology, 1993
Two English women are described who developed chestnut-brown pigmentation of the distal part of the finger- and thumb-nail plates whilst using 'over the counter' topical hydroquinone depigmenting creams. In both individuals there was marked deepening of the pigmentation during periods of intense sun exposure.
openaire +2 more sources
Two English women are described who developed chestnut-brown pigmentation of the distal part of the finger- and thumb-nail plates whilst using 'over the counter' topical hydroquinone depigmenting creams. In both individuals there was marked deepening of the pigmentation during periods of intense sun exposure.
openaire +2 more sources
The fading of colouring matters
Journal of Applied Chemistry, 1964AbstractAn outline of the causes and nature of fading of organic colouring matters is given. Atmospheric fading, in absence of light, is produced by nitrogen oxides in urban air, especially with blue and violet disperse dyes on some hydrophobic fibres, but sulphur dioxide and ozone can also cause fading.
openaire +1 more source