counter current circulation
21Sargasso Sea — The Sargasso Sea is a region in the middle of the North Atlantic Ocean, surrounded by ocean currents. It is bounded on the west by the Gulf Stream; on the north, by the North Atlantic Current; on the east, by the Canary Current; and on the south …
22North Atlantic Gyre — The five major oceanic gyres. The North Atlantic Gyre, located in the Atlantic Ocean, is one of the five major oceanic gyres, and contains the Sargasso Sea. This gyre is similar to the North Pacific Gyre in the way it traps man made ocean debris… …
23One pound (British coin) — This article is about the circulating one pound coin issued since 1983. For earlier coins worth one pound, see Sovereign (British coin), Broad (British coin), Laurel (English coin), and Unite (English coin). One pound United Kingdom Value 1 pound …
24Evaporator — Within a downstream processing system, several stages are used to further isolate and purify the desired product. The overall structure of the process includes pre treatment, solid liquid separation, concentration, and purification and… …
25Heat exchanger — An interchangeable plate heat exchanger Tubular heat exchan …
26Hawaiian Islands — Mokupuni o Hawai‘i True colour satellite image of the Hawaiian Islands …
27Swimming machine — This article is about the modern exercise and rehabilitation equipment. For the Victorian modesty apparatus, see Bathing machine. A swimming machine is a resistance swimming apparatus, often self contained, enabling the swimmer to swim in place.… …
28PALMÉN — FINLAND (see also List of Individuals) 31.8.1898 Vasa/FI 19.3.1985 Helsinki/FI Erik Herbert Palmén graduated from Helsinki University in 1922 and until 1935 there was an assistant when being appointed professor and director of the Finish Research …
29Dimensionless quantity — In dimensional analysis, a dimensionless quantity or quantity of dimension one is a quantity without an associated physical dimension. It is thus a pure number, and as such always has a dimension of 1.[1] Dimensionless quantities are widely used… …
30Hemodialysis — In medicine, hemodialysis (also haemodialysis) is a method for removing waste products such as potassium and urea, as well as free water from the blood when the kidneys are in renal failure. Hemodialysis is one of three renal replacement… …
