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Persol is an Italian luxury eyewear brand specializing in the manufacturing of sunglasses and optical frames. It is one of the oldest eyewear companies in the world and is owned by the Luxottica group. The name is derived from the Italian per il sole, meaning "for the sun". Formed in 1917 by Giuseppe Ratti, Persol originally catered to pilots ...
An enthalpy–entropy chart, also known as the H–S chart or Mollier diagram, plots the total heat against entropy, [1] describing the enthalpy of a thermodynamic system. [2] A typical chart covers a pressure range of 0.01–1000 bar, and temperatures up to 800 degrees Celsius. [3] It shows enthalpy in terms of internal energy , pressure and ...
The US Navy has used several decompression models from which their published decompression tables and authorized diving computer algorithms have been derived. The original C&R tables used a classic multiple independent parallel compartment model based on the work of J.S.Haldane in England in the early 20th century, using a critical ratio exponential ingassing and outgassing model.
Persol Holdings (rebranded from Temp Holdings) is a Japanese human resource management company, that provides labour hire services to clients. Corporate history [ edit ]
In the Year 2889 ( La Journée d’un journaliste américain en 2889 in French) is an 1889 short story published under the name of Jules Verne, but now believed to be mainly the work of his son Michel Verne, based on his father's ideas. [ 1] The first publication was in English in February 1889, in the American magazine The Forum .
Bessemer process. The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace. The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron. The oxidation also raises the temperature ...
Hall–Héroult process. The Hall–Héroult process is the major industrial process for smelting aluminium. It involves dissolving aluminium oxide (alumina) (obtained most often from bauxite, aluminium 's chief ore, through the Bayer process) in molten cryolite and electrolyzing the molten salt bath, typically in a purpose-built cell.
1988–1990. Paris Saint-Germain B. Corbeil-Essonnes. CA L'Ha -les-Roses. *Club domestic league appearances and goals. Stéphane Persol (born 24 March 1968) is a French former professional footballer who played as a defender.