Soret Band

	Soret Band Soret may refer to: Persons * Charles Soret (1854–1904), a chemist, and son of Jacques-Louis Soret *Thermophoresis, also known (particularly in liquid mixtures) as the Soret effect, named for him Frédéric Soret (1795–1865), a physicist and numismatist * Jacques-Louis Soret (1827–1890), a chemist, and father of Charles Soret *the Soret peak, a spectroscopic phenomenon named for him Julien Soret, French governor of Senegal (1837–1839) * Nicolas Soret, 17th-century playwright Locations Fontaine-la-Soret Fontaine-la-Soret () is a former commune in the Eure department in the Normandy region in northern France. On 1 January 2017, it was merged into the new commune Nassandres sur Risle. [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Charles Soret Charles Soret (born 23 September 1854, Geneva, Switzerland; died 4 April 1904) was a Swiss physicist and chemist. He is known for his work on thermodiffusion (the so-called ''Soret effect''). Life Charles Soret was the son of Jacques-Louis Soret, professor of physical medicine at University of Geneva, and Clémentine Odier. In 1872, Charles graduated from an art college in Geneva and, two years later, he added a degree in mathematics. In addition, he also attended lectures in physics and other sciences. He continued studies in mathematics at the Sorbonne, where he received his MA in 1876. He believed that a good physicist is first of all a good mathematician; therefore, only afterwards he focused on physics in which he obtained a master's degree two years later. Soon, he was offered a place in the Department of crystallography and mineralogy at the University of Geneva. There, in 1879, he became a lecturer and a full professor in 1881. In 1879, he published his first discussi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Thermophoresis Thermophoresis (also thermomigration, thermodiffusion, the Soret effect, or the Ludwig–Soret effect) is a phenomenon observed in mixtures of mobile particles where the different particle types exhibit different responses to the force of a temperature gradient. This phenomenon tends to move light molecules to hot regions and heavy molecules to cold regions. The term ''thermophoresis'' most often applies to aerosol mixtures whose mean free path \lambda is comparable to its characteristic length scale L, but may also commonly refer to the phenomenon in all phases of matter. The term ''Soret effect'' normally applies to liquid mixtures, which behave according to different, less well-understood mechanisms than gaseous mixtures. Thermophoresis may not apply to thermomigration in solids, especially multi-phase alloys. Thermophoretic force The phenomenon is observed at the scale of one millimeter or less. An example that may be observed by the naked eye with good lighting is when the hot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Frédéric Soret Frédéric Soret (12 May 1795 in Saint Petersburg – 18 December 1865 at Plainpalais in Geneva) was a Swiss private scholar in physics and Oriental numismatics. Biography The Soret family originates from Geneva. Frédéric Soret was born in Saint Petersburg, where his father served as artist at the imperial court. In his youth the family returned to Geneva. There he studied physics. Between 1822 and 1836 Frédéric Soret served as princely tutor in the Grand Dukedome of Saxe-Weimar-Eisenach. He took care for the education of the later Grand Duke Carl Alexander, a son of the Maria Pavlovna and heir apparent. During his time in Weimar, he was a close acquaintance to Johann Wolfgang von Goethe. Soret translated several of Goethe's books about natural sciences into French. After Soret's return to Geneva in 1836, he turned his attention to Islamic numismatics. The initial interest might have aroused by a coin hoard of the 9th century containing North-African dirhams of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Jacques-Louis Soret Jacques-Louis Soret (30 June 1827 – 13 May 1890) was a Swiss chemist and spectroscopist. He studied both spectroscopy and electrolysis. He held the chairs of chemistry (1873-1887) and medical physics (1887-1890) at the University of Geneva. Soret determined the chemical composition and density of ozone and the conditions for its production. He described it correctly as being composed of three oxygen atoms bound together. Soret also developed optical instruments. He climbed Mont Blanc, where he was the first scientist to make actinometric measurements of solar radiation. These observations were published in the ''Philosophical Magazine'' in 1867. In 1878, he and Marc Delafontaine were the first to spectroscopically observe the element later named holmium, which they identified simply as an "earth X" derived from "erbia". Independently, Per Teodor Cleve separated it chemically from thulium and erbium in 1879. All three researchers are given credit for the element's dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Soret Peak In spectroscopy, a Soret peak or Soret band is an intense peak in the blue wavelength region of the visible spectrum. The peak is named after its discoverer, Jacques-Louis Soret. The term is commonly used in absorption spectroscopy, corresponding to a wavelength of maximum absorption (electromagnetic radiation) ranging around 400 nm in the blue region. Examples The Soret band arises primarily due to an electron dipole movement that allows π-π* transitions; most common in porphyrin compounds. Most analytical studies of porphyrincontaining moiety can be done using ultraviolet–visible spectroscopy and exciting wavelength at the respective Soret band wavelength. For example, the "Soret peak" is used to describe the absorption of vividly-pigmented heme-containing moieties, such as various cytochromes. For example, the cytochromes P450, a diverse class of monooxygenase enzymes, exhibit a Soret peak at 450 nm in their reduced form when saturated with carbon monoxide. This i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	List Of Colonial Governors Of Senegal See also * Timeline of Saint-Louis, Senegal References Rulers.org: SenegalLucie Gallistel Colvin. Historical Dictionary of Senegal. Scarecrow Press/ Metuchen. NJ–London (1981) pp. 81–98 (Table 10). {{Former French colonies Senegal Senegal,; Wolof: ''Senegaal''; Pulaar: 𞤅𞤫𞤲𞤫𞤺𞤢𞥄𞤤𞤭 (Senegaali); Arabic: السنغال ''As-Sinighal'') officially the Republic of Senegal,; Wolof: ''Réewum Senegaal''; Pulaar : 𞤈𞤫𞤲𞤣𞤢𞥄𞤲𞤣𞤭 � ... French West Africa Colonial heads ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Nicolas Soret Nicolas Soret (end of the 16th century in Reims – begin of the 17th century) was a French catholic priest, poet and playwright A playwright or dramatist is a person who writes plays. Etymology The word "play" is from Middle English pleye, from Old English plæġ, pleġa, plæġa ("play, exercise; sport, game; drama, applause"). The word "wright" is an archaic English .... In 1606, he published ''La Ceciliade, ou le Martyre sanglant de sainte Cecile, patronne des musiciens, choirs set in music by Abraham Blondet'', Paris, Rezé, 1606. On 9 May 1624, he had ''L'Élection divine de Saint Nicolas à l'archevêché de Myre avec un sommaire de sa vie'' presented at Reims. Bibliography * Abbé Jean-Baptiste-Joseph Boulliot, ''Biographie ardennaise'' ou ''Histoire des Ardennais qui se sont fait remarquer par leurs écrits, leurs actions, leurs vertus ou leurs erreurs'', Paris, 1830, vol.2, p. 388-38 * Collectif, ''Biographie universelle, ancienne et moderne'', Paris, au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]