This section deals with the selection of the best types of reactor and operation for a particular biochemical or biological process. When faced with a design problem such as this, there are two previously fixed factors that must be considered to make a proper selection. These are, first, the scale of operation (production rate) and, second, the kinetics of the reaction involved. Invariably the criterion that is used to make the selection is a monetary one. Design and economics are two sides of the same coin. To be responsible to society as a whole, industries must also pay attention to safety and environmental and ethical problems in making decisions on the overall design of a process. This is much easier said than done. Engineering design and economics are quantitative, whereas social benefits and values are difficult to access. At the present time, the subject matter dealt here is limited to the scientific aspect of the problem that can be expressed clearly in quantities.

Sleeping Sanctuary

Sleeping Sanctuary

Salvation For The Sleep Deprived The Ultimate Guide To Sleeping, Napping, Resting And  Restoring Your Energy. Of the many things that we do just instinctively and do not give much  of a thought to, sleep is probably the most prominent one. Most of us sleep only because we have to. We sleep because we cannot stay awake all 24 hours in the day.

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