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Wentzel
Wentzel and Wentzell are surnames, and may refer to: Wentzel * Emil Wentzel (c. 1817–1892), timber merchant and politician in South Australia * Gregor Wentzel (1898–1978), German physicist * Stan Wentzel (1917–1991), Major League Baseball player * Sune Wentzel (born 1971), Norwegian frisbeer * Volkmar Wentzel (1915–2006), American photographer Wentzel may also refer to: * Wentzel–Kramers–Brillouin approximation In mathematical physics, the WKB approximation or WKB method is a method for finding approximate solutions to linear differential equations with spatially varying coefficients. It is typically used for a semiclassical calculation in quantum mecha ... Wentzell * Alexander D. Wentzell (born 1937), Russian-American mathematician * Fritz Wentzell (1899–1948), highly decorated German military leader during World War II Wentzell may also refer to: * Freidlin–Wentzell theorem, a statistics tool relating to Brownian motion {{surname, Wentzell German- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volkmar Wentzel
Volkmar Kurt Wentzel (February 8, 1915 – May 10, 2006) was a German American photographer and cinematographer. He worked for nearly 50 years for the National Geographic Society as a darkroom technician and photographer, and his professional and personal work was highly acclaimed.Van Riper, Frank. "A Phenomenal Facsimile." ''Washington Post.'' November 6, 1998. He was one of the first people to take photographs of then-little known country of Nepal, and was noted for documenting the final years of many of the traditional tribal kingdoms of Africa.Sullivan, Patricia. "National Geographic Photographer and Archivist Volkmar Wentzel, 91." ''Washington Post.'' May 13, 2006. Early life Wentzel was born February 8, 1915, in the city of Dresden in what was then the Kingdom of Saxony (now Freestate of Saxony) in Germany. He was one of four boys born to Dr. Fritz Gustav Wentzel (a chemist) and his wife, Verna Jatho Wentzel.Feather, Carl E. "Silver Shadows of Aurora." ''Charleston Gazett ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gregor Wentzel
Gregor Wentzel (17 February 1898 – 12 August 1978) was a German physicist known for development of quantum mechanics. Wentzel, Hendrik Kramers, and Léon Brillouin developed the Wentzel–Kramers–Brillouin approximation in 1926. In his early years, he contributed to X-ray spectroscopy, but then broadened out to make contributions to quantum mechanics, quantum electrodynamics, and meson theory. Life and education Gregor Wentzel was born in Düsseldorf, Germany, as the first of four children of Joseph and Anna Wentzel. He married Anna "Anny" Pohlmann in 1929 and his only child, Donat Wentzel, was born in 1934. The family moved to the USA in 1948 until he and Anny returned to Ascona, Switzerland in 1970. Career Wentzel began his university education in mathematics and physics in 1916, at the University of Freiburg. During 1917 and 1918, he served in the armed forces during World War I. He then resumed his education at Freiburg until 1919, when he went to the University of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stan Wentzel
Stanley Aaron Wentzel (January 13, 1917 – November 28, 1991) was an American professional baseball player. A longtime minor league outfielder and, later, a manager, Wentzel's only stint in Major League Baseball came at the end of the season, when he appeared in four games in centerfield for the Boston Braves. The 28-year-old rookie was a native of Lorane, Pennsylvania. He threw and batted right-handed, stood tall and weighed . Wentzel is one of many ball players who only appeared in the Major Leagues during the World War II period. After batting .321 with the Indianapolis Indians of the top-level American Association — where he was named an All-Star and the league's Most Valuable Player — he was called up by Boston and started four games for the Braves in the last week of the season, all against the New York Giants. He got only four hits in 19 at bats (.211), but had six runs batted in. He also scored three runs. In the field, Wentzel recorded eight putouts with n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freidlin–Wentzell Theorem
In mathematics, the Freidlin–Wentzell theorem (due to Mark Freidlin and Alexander D. Wentzell) is a result in the large deviations theory of stochastic processes. Roughly speaking, the Freidlin–Wentzell theorem gives an estimate for the probability that a (scaled-down) sample path of an Itō diffusion will stray far from the mean path. This statement is made precise using rate functions. The Freidlin–Wentzell theorem generalizes Schilder's theorem for standard Brownian motion. Statement Let ''B'' be a standard Brownian motion on R''d'' starting at the origin, 0 ∈ R''d'', and let ''X''''ε'' be an R''d''-valued Itō diffusion solving an Itō stochastic differential equation of the form :\begin dX_t^\varepsilon = b(X_t^\varepsilon) \, dt + \sqrt \, dB_t, \\ X_0^\varepsilon = 0, \end where the drift vector field ''b'' : R''d'' → R''d'' is uniformly Lipschitz continuous. Then, on the Banach space ''C''0 = ''C''0( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emil Wentzel
Emil August Edward Wentzel (c. 1817 – 23 February 1892) was a timber merchant and politician in the colony of South Australia. Emil emigrated to South Australia on the ''Hermann von Beckerath'' from Bremen, Germany, arriving in December 1847. He worked for a time as surveyor and engineer with the Central Road Board, but in 1852, after numerous complaints and several jobs which cost significantly more than budgeted for, he was dismissed from the service. He thereupon set himself up as a timber merchant on East Terrace, Adelaide, and grew quite wealthy. Emil Wentzel was MHA for Encounter Bay from April 1870 – December 1871. His term in parliament was remarkable for a deputation from his electorate calling for his resignation. He was not a candidate at the subsequent election. He returned to Baden-Baden Baden-Baden () is a spa town in the state of Baden-Württemberg, south-western Germany, at the north-western border of the Black Forest mountain range on the small river ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wentzel–Kramers–Brillouin Approximation
In mathematical physics, the WKB approximation or WKB method is a method for finding approximate solutions to linear differential equations with spatially varying coefficients. It is typically used for a semiclassical calculation in quantum mechanics in which the wavefunction is recast as an exponential function, semiclassically expanded, and then either the amplitude or the phase is taken to be changing slowly. The name is an initialism for Wentzel–Kramers–Brillouin. It is also known as the LG or Liouville–Green method. Other often-used letter combinations include JWKB and WKBJ, where the "J" stands for Jeffreys. Brief history This method is named after physicists Gregor Wentzel, Hendrik Anthony Kramers, and Léon Brillouin, who all developed it in 1926. In 1923, mathematician Harold Jeffreys had developed a general method of approximating solutions to linear, second-order differential equations, a class that includes the Schrödinger equation. The Schrödinger equati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fritz Wentzell
__NOTOC__ Fritz Wentzell (29 April 1899 – 1 April 1948) was a German general (Generalleutnant) in the Wehrmacht during World War II. He was a recipient of the Knight's Cross of the Iron Cross of Nazi Germany. Awards and decorations * Knight's Cross of the Iron Cross on 23 October 1944 as '' Generalmajor'' and chief of the general staff of the 10. ArmeeFellgiebel 2000, p. 359. References Citations Bibliography * * {{DEFAULTSORT:Wentzell, Fritz 1899 births 1948 deaths Military personnel from Kassel Lieutenant generals of the German Army (Wehrmacht) German Army personnel of World War I Recipients of the Gold German Cross Recipients of the Knight's Cross of the Iron Cross Prussian Army personnel German prisoners of war in World War II German Army generals of World War II ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sune Wentzel
Sune Wentzel (born 6 July 1971 in Oslo) is a former Norwegian frisbeer. He has six world titles, and set two world indoor distance records. Sune has several world medals and other international titles. Sune has left a spectacular image of the frisbee A frisbee (pronounced ), also called a flying disc or simply a disc, is a gliding toy or sporting item that is generally made of injection-molded plastic and roughly in diameter with a pronounced lip. It is used recreationally and competitiv ... environment in Norway. Achievements * Overall World Championship Golds (7): 1993, 1997, 1999 * World Championship Gold in Freestyle: 2003 (together with Tom Leitner and Paul Kenny) * World Championship gold in DDC: 1997 (together with Aksel Finborud) * World Championship Gold in SCF: 1999 References External linksProfile at freestyledisc.org {{DEFAULTSORT:Wentzel, Sune 1971 births Living people Norwegian sportsmen Flying disc Sportspeople from Oslo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander D
Alexander is a male given name. The most prominent bearer of the name is Alexander the Great, the king of the Ancient Greek kingdom of Macedonia who created one of the largest empires in ancient history. Variants listed here are Aleksandar, Aleksander and Aleksandr. Related names and diminutives include Iskandar, Alec, Alek, Alex, Alexandre, Aleks, Aleksa and Sander; feminine forms include Alexandra, Alexandria, and Sasha. Etymology The name ''Alexander'' originates from the (; 'defending men' or 'protector of men'). It is a compound of the verb (; 'to ward off, avert, defend') and the noun (, genitive: , ; meaning 'man'). It is an example of the widespread motif of Greek names expressing "battle-prowess", in this case the ability to withstand or push back an enemy battle line. The earliest attested form of the name, is the Mycenaean Greek feminine anthroponym , , (/Alexandra/), written in the Linear B syllabic script. Alaksandu, alternatively called ''Alakasandu'' or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German-language Surnames
German ( ) is a West Germanic language mainly spoken in Central Europe. It is the most widely spoken and official or co-official language in Germany, Austria, Switzerland, Liechtenstein, and the Italian province of South Tyrol. It is also a co-official language of Luxembourg and Belgium, as well as a national language in Namibia. Outside Germany, it is also spoken by German communities in France (Bas-Rhin), Czech Republic ( North Bohemia), Poland ( Upper Silesia), Slovakia ( Bratislava Region), and Hungary ( Sopron). German is most similar to other languages within the West Germanic language branch, including Afrikaans, Dutch, English, the Frisian languages, Low German, Luxembourgish, Scots, and Yiddish. It also contains close similarities in vocabulary to some languages in the North Germanic group, such as Danish, Norwegian, and Swedish. German is the second most widely spoken Germanic language after English, which is also a West Germanic language. German is one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
