The fundamental difference between smouldering and flaming combustion is that smouldering occurs on the surface of the solid rather than in the gas phase. Smouldering is a surface phenomenon but can propagate to the interior of a porous fuel if it is permeable to flow. The characteristic temperature and heat released during smouldering are low compared to those in the flaming combustion (i.e., ~600 Â°C vs. ~1500 Â°C). Smouldering propagates in a creeping fashion, around 0.1 mm/s, which is about ten times slower than flames spread over a solid.
Quick Answer. A sheep's pluck is the internal organs of a sheep, specifically the liver, lungs and heart. Chefs and home cooks dice these organs and stuff them into a sheep's stomach to prepare the traditional Scottish dish called haggis. Continue Reading.
Editorial Information. Sheep scab is caused by the host-specific mite Psoroptes ovis. Sheep scab can be transmitted by direct contact when sheep are gathered and held tightly together such as during sales or contact with infested scab material on fenceposts or vehicles used for animal transport etc.. Sheep scab mites can survive off the sheep for up to 17 days, survival being longest when the weather is cold and damp. 4. The only treatments that guarantee persistence for longer than 17 days are diazinon (organophosphate) and moxidectin injection.