IntroductIon Polyphenols are a large family of metabolic compounds that occur naturally in a wide variety of plant foods. Recently, polyphenols have attracted a great deal of attention due to their roles as natural antioxidants. Antioxidants are believed to provide a protective effect against oxidative damage diseases such as cancer, coronary heart disease, and stroke. It has been estimated tha...

Automation of grinding of metalcastings is desirable for many reasons. The major reasons are dangerous working conditions, low productivity, and inconsistency in human operations. As an approach to the automating grinding process, a gantrydriven grinding machine is proposed to manipulate an industrial hand grinder and control the grinding force applied to the work piece. To increase the materia...

Starch was isolated from dehydrated Horse Chestnut slices dried at temperature of 50, 60, 70, 80 and 90°C and rehydrated chips (dried at 50 and 60°C) at rehydration temperature of 25 and 40°C. Optimization was done on the basis of starch yield. The highest yield was found in the sample dried at 50°C. Physicochemical properties of optimized starch were determined. Color values indicate that the ...

Students find logic hard. In particular, they seem to find it hard to translate natural language sentences into their corresponding representations in logic. As an enabling step towards determining why this is the case, this paper presents the public release of a corpus of over 4.5 million translations of natural language (nl) sentences into first-order logic (fol), provided by 55,000 students ...

Pressure vessels are critical components in internal combustion engines as they withstand high pressures of oil, air, steam or other fluids. Failure a pressure vessel can result loss containment, personal injury, equipment damage and, severe cases, even explosions. Therefore, it is crucial to carry out periodic and rigorous inspections these an engine overhaul ensure their integrity safety. Thi...