منابع مشابه
Fading and Silver Mirroring in a Dry Plate Glass Negative
Dry plate glass negatives are important part of the cultural, historical and visual heritage in history of Iran. Structural changes due to factors affected them over time, can cause deterioration in the image. Identifying deteriorations in dry plate glass negatives can help to provide better solutions in preserving them. The investigation of sample by Fourier transform infrared spectroscopy ...
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Ensembles of randomized decision trees, usually referred to as random forests, are widely used for classification and regression tasks in machine learning and statistics. Random forests achieve competitive predictive performance and are computationally efficient to train and test, making them excellent candidates for real-world prediction tasks. The most popular random forest variants (such as ...
متن کاملFading Models
In this paper fading models are considered. In particular we divide the models into three classes by separating the received signal in three scale of spatial variation such as fast fading, slow fading (shadowing) and path loss. Moreover, several models for small scale fading are considered such as Rayleigh, Ricean, Nakagami and Weibull distributions. Slow fading is also investigated as well as ...
متن کاملMultipath & Fading
In radar processing, multipath causes ghost targets to appear, deceiving the radar receiver. These ghosts are particularly bothersome since they move and behave like the normal targets (which they echo), and so the receiver has difficulty in isolating the correct target echo. These problems can be overcome by incorporating a ground map of the radar's surroundings and eliminating all echoes whic...
متن کاملInfluence of Meteorological Factors on Date Bunch Fading Disorder
Date bunch fading disorder (DBFD) has been one of the major issues facing date palm growers in recent decades. This order has caused high and non-compensable losses to date palm product. Despite numerous studies, predominantly focusing on the causes and mitigation methods of this disorder, no precise influencing factors have been established and practices which can completely control it are not...
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ژورنال
عنوان ژورنال: Nature Climate Change
سال: 2009
ISSN: 1758-678X,1758-6798
DOI: 10.1038/climate.2009.8