In 1964, R. R. Rogers proposed a method for estimating vertical air velocity in rainfall which is based on the Marshall–Palmer raindrop size distribution. Many investigators have shown that there are ...
O. E. Walton, Jr., S. R. Reice and R. W. Andrews A laboratory experiment was conducted to test the effects of population density, sediment type and flow rate on the drift of a stonefly. Three types of ...
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