FRICTION CHALLENGE IN HYDRAULIC FRACTURING

Friction Challenge in Hydraulic Fracturing

Hydraulic fracturing has become one of the most popular techniques for exploring sustainable energy sources.However, friction is associated with the entire fracturing process, presenting significant challenges for development.Facing the huge friction challenges, this review is elaborated in the following three aspects: (1) the fundamentals of hydra

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Safety evaluation of the food enzyme triacylglycerol lipase from the pregastric tissues of calves, young goats and lambs

Abstract The food enzyme containing triacylglycerol lipase (triacylglycerol acylhydrolase; EC 3.1.1.3) is prepared from the pregastric tissues of calves, young goats and lambs by Caglificio Clerici SpA.The food enzyme is intended to be used in the production of cheese.As no concerns arose from the animal source of the food enzyme, from its Dog Towe

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