The main focus of the paper is an extension of the classical Taylor theory of plasticity to include the microscopic conditions for slip transfer at grain boundaries. It is demonstrated that such leads to consideration of the grain boundary character distribution function, in concert with the usual local state distribution function. The primary result is an expression for the generalized Taylor ...

Abstract Grain size distributions are widely used to describe sedimentary geochemistry, depositional environment, and sediment transportation. The objective of this study is analyze grain modern sandy beach sediments in Sri Lanka. Sediment samples ( n = 90) were collected from berm, representing the entire coastline sizes determined by dry-sieving method. Statistical parameters such as mean siz...

Grain-size distribution in deserts is driven by a combination of autogenic controls such as grain abrasion and sorting due to wind transport, allogenic provenance spatial changes wind-direction. Downwind grain-size trends present day sand seas display contrasting results, with some showing broad downwind fining (for example, Namib Hexi) whilst others lack any clear trend Ténére, Australian Sina...

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