Spiral /3-hairpin

Fig. 5. Thermal vaporization sources (a) hairpin (b) spiral (c) basket (d) boat and (e) canoe, which ate all resistively heated sources and (f) focused...

Tank Coils Pipe tank coils are made in a wide variety of configurations, depending upon the application and shape of the vessel. Helical and spiral coils are most commonly shop-fabricated, while the hairpin pattern is generally field-fabricated. The helical coils are used principally in process tanks and pressure vessels when large areas... 

Thus, the secondary structure of a protein has the geometry of an a-helix or a /3-fold with an elementary unit (i.e. a tm-n of a spiral, or a hairpin ) which includes some three to ten monomers of the chain. 

Based on different mechanical construction, the common types of heat exchanger used in industry are doublepipe or multi-tube hairpin, shell and tube, air cooler, plate and frame, and spiral. Only the tirst three types of heat exchanger will be discussed in this chapter. 

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