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Some algae species are 50% or maybe more lipid oil by weight. This oil can be pressed in the algae and refined into diesel. The process for extracting algal oil, at its most elementary level, is similar to pressing an olive. Up to 75% with the oil could be squeezed from algae which has a simple mechanical press. Hexane may be used as a solvent to increase extraction as much as 95%. Once extracted, the oil is refined through transesterification. A catalyst including sodium hydroxide is when combined alcohol to create biodiesel and glycerol. For a ceramic item which is often used with food say for example a plate or mug ' an epoxy adhesive is usually recommended. Epoxy adhesives are water-tight and therefore are therefore dishwasher friendly and provide a flexible and durable bond. This glue would suit outdoor ceramics too. These adhesives tend to set clear, yet it's always best to check before purchasing. You must also decide whether you'll need a slow setting or instant adhesive. If it can be a tricky or precise fit, fast acting glue may dry too fast. If the ceramic item sits dormant with food, like a chipped porcelain figure ' super glue can be utilized. Super glue resists modest heat and dampness, however, if the item is generally washed it can be advised make fish an epoxy adhesive be utilized instead. Super glue will dry relatively quickly, so make sure that you be aware of exact position essential for the broken piece. However, science and technology are two different social cultures, and the differences between them are obvious. The basic task of science is to know the world and find it, thus increasing the intellectual wealth of mankind. The basic task of technology is to discover the world and invent it to create the material wealth of mankind and enrich the spiritual and cultural life of human society. Science answers questions about "what" and "why"; The technology answers the question "what to do" and "how to do". Therefore, the results of science and technology are different in form. Scientific achievements are generally expressed as concepts, laws, papers and other forms. The technical results are usually in the form of process flow, design drawing, operation method and so on. Scientific products are generally not commercial and technological achievements can be commoditized. Modern technology has a strong utilitarian and commercial color.

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