cover type of on–farm storages has an important role in reducing the freezing damage and respiration of beet roots in the pile. this experiment was conducted in 2006 in karaj region in order to evaluate the effects of cover types of storage on the mass and sugar losses of both topped and untopped beets. the experimental design was a split plot factorial in rcbd with three replications. the main...

The diameters of many domes on Venus imaged by the Magellan synthetic aperture radar (aAR) are an order of magnitude larger than terrestrial subaerial domes; however, surveys of the seafloor using sonar imaging systems such as GLORIA (Geological Long Range Inclined Asdic) and SeaBEAM have revealed flat-topped volcanic features with similar diameters, volumes and slope angles. Suggested analogie...

The effects of aberration on the Bit-Error-Rate (BER) and reliability of free- space optical (FSO) communication links are investigated. Based on aberrated divergent rectangular partially coherent flat-topped beam formula on the receiver plane and considering the atmosphere losses due to absorption and scattering, numerical values for Power In Bucket (PIB), Signal to Noise Ratio (SNR) and BER a...