Wim Cohen
   HOME
*





Wim Cohen
Jacob Willem "Wim" Cohen (27 August 1923 Leeuwarden – 12 November 2000) was a Dutch mathematician, well known for over hundred scientific publications and several books in queueing theory. Cohen was born in a Jewish family, as the son of Benjamin Cohen and Aaltje Klein. Having acquired an autodidact knowledge of mathematics while in hiding during World War II, Cohen got an Engineer's degree (1949) and Ph.D. degree (1955) in mechanical engineering at Delft University, on a dissertation entitled ''Stress Calculations in Helicoidal Shells and Propeller Blades''. He worked as teletraffic engineer with the ''Telecommunications group'' at Philips (1950–57), at the applied mathematics department at Delft (1957–73) and University of Utrecht (1973-1998). He was buried in Haifa. Books *''The single server queue'' (1969) *''Statistical Power Analysis for the Behavioural Sciences'' (Academic Press, 1969) *''On regenerative processes in queueing theory'' *''Boundary value proble ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Leeuwarden
Leeuwarden (; fy, Ljouwert, longname=yes /; Town Frisian: ''Liwwadden''; Leeuwarder dialect: ''Leewarden'') is a city and municipality in Friesland, Netherlands, with a population of 123,107 (2019). It is the provincial capital and seat of the Provincial Council of Friesland. It is located about 50 km west of Groningen and 110 km north east from the Dutch capital Amsterdam (as the crow flies). The region has been continuously inhabited since the 10th century. It came to be known as Leeuwarden in the early 9th century AD and was granted city privileges in 1435. It is the main economic hub of Friesland, situated in a green and water-rich environment. Leeuwarden is a former royal residence and has a historic city centre, many historically relevant buildings, and a large shopping centre with squares and restaurants. Leeuwarden was awarded the title European Capital of Culture for 2018. The Elfstedentocht (Eleven Cities Tour), an ice skating tour passing the eleven cities of Fri ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Onno J
Onno is a Dutch masculine given name of unclear origin. People with the name include: * Onno Boelee (1945–2003), Dutch-born New Zealand professional wrestler, actor, and stuntman * Onno J. Boxma (born 1952), Dutch mathematician * (born ca. 1943), Dutch ambassador * (1713–1779), Dutch politician, playwright and poet *Onno Hoes (born 1961), Dutch VVD politician * Onno Jacobs (born 1964), Dutch businessman *Onno Klopp (1822–1903), German historian * (1960–2008), Dutch actor * Onno Ruding (born 1939), Dutch banker, executive director of the IMF and Minister of Finance * Onno van de Stolpe (born 1959), Dutch businessman *Onno Tunç (1948–1996), Armenian-Turkish musician born ''Ohannes Tunçboyacıyan'' See also *Dinitrogen dioxide Dinitrogen dioxide is an inorganic compound having molecular formula . Many structural isomers are possible. The covalent bonding pattern O=N–N=O (a non-cyclic dimer of nitric oxide (NO)) is predicted to be the most stable isomer based on ab in ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


1923 Births
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film Music * 19 (band), a Japanese pop music duo Albums * ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD * ''19'', one half of the double album ''63/19'' by Kool A.D. * ''Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * ''XIX'' (EP), a 2019 EP by 1the9 Songs * "19" (song), a 1985 song by British musician Paul Hardcastle. * "Nineteen", a song by Bad4Good from the 1992 album '' Refugee'' * "Nineteen", a song by Karma to Burn from the 2001 album ''Almost Heathen''. * "Nineteen" (song), a 2007 song by American singer Billy Ray Cyrus. * "Nineteen", a song by Tegan and Sara from the 2007 album '' The Con''. * "XIX" (song), a 2014 song by Slipk ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

People From Leeuwarden
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form "people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural form of per ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Utrecht University Faculty
Utrecht ( , , ) is the fourth-largest city and a municipality of the Netherlands, capital and most populous city of the province of Utrecht. It is located in the eastern corner of the Randstad conurbation, in the very centre of mainland Netherlands, about 35 km south east of the capital Amsterdam and 45 km north east of Rotterdam. It has a population of 361,966 as of 1 December 2021. Utrecht's ancient city centre features many buildings and structures, several dating as far back as the High Middle Ages. It has been the religious centre of the Netherlands since the 8th century. It was the most important city in the Netherlands until the Dutch Golden Age, when it was surpassed by Amsterdam as the country's cultural centre and most populous city. Utrecht is home to Utrecht University, the largest university in the Netherlands, as well as several other institutions of higher education. Due to its central position within the country, it is an important hub for both rail and road ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Dutch Jews
The history of the Jews in the Netherlands began largely in the 16th century when they began to settle in Amsterdam and other cities. It has continued to the present. During the occupation of the Netherlands by Nazi Germany in May 1940, the Jewish community was severely persecuted. The area now known as the Netherlands was once part of the Spanish Empire but in 1581, the Northern Dutch provinces declared independence. A principal motive was the wish to practice Protestant Christianity, then forbidden under Spanish rule. Religious tolerance was effectively an important constitutional element of the newly independent state. This inevitably attracted the attention of Jews who were religiously oppressed in different parts of the world. In pursuit of religious freedoms, many Jews migrated to the Netherlands where they flourished. During the Nazi occupation of the Netherlands in World War II, approximately 75 percent of the Jewish population of the Netherlands was murdered in th ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Delft University Of Technology Faculty
Delft () is a city and municipality in the province of South Holland, Netherlands. It is located between Rotterdam, to the southeast, and The Hague, to the northwest. Together with them, it is part of both the Rotterdam–The Hague metropolitan area and the Randstad. Delft is a popular tourist destination in the Netherlands, famous for its historical connections with the reigning House of Orange-Nassau, for its blue pottery, for being home to the painter Jan Vermeer, and for hosting Delft University of Technology (TU Delft). Historically, Delft played a highly influential role in the Dutch Golden Age. In terms of science and technology, thanks to the pioneering contributions of Antonie van Leeuwenhoek and Martinus Beijerinck, Delft can be considered to be the birthplace of microbiology. History Early history The city of Delft came into being beside a canal, the 'Delf', which comes from the word ''delven'', meaning to delve or dig, and this led to the name Delft. At the ele ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Delft University Of Technology Alumni
Delft () is a city and municipality in the province of South Holland, Netherlands. It is located between Rotterdam, to the southeast, and The Hague, to the northwest. Together with them, it is part of both the Rotterdam–The Hague metropolitan area and the Randstad. Delft is a popular tourist destination in the Netherlands, famous for its historical connections with the reigning House of Orange-Nassau, for its blue pottery, for being home to the painter Jan Vermeer, and for hosting Delft University of Technology (TU Delft). Historically, Delft played a highly influential role in the Dutch Golden Age. In terms of science and technology, thanks to the pioneering contributions of Antonie van Leeuwenhoek and Martinus Beijerinck, Delft can be considered to be the birthplace of microbiology. History Early history The city of Delft came into being beside a canal, the 'Delf', which comes from the word ''delven'', meaning to delve or dig, and this led to the name Delft. At th ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Queueing Theorists
Queue areas are places in which people queue (first-come, first-served) for goods or services. Such a group of people is known as a ''queue'' (British usage) or ''line'' ( American usage), and the people are said to be waiting or standing ''in a queue'' or ''in line'', respectively. (In the New York City area, the phrase ''on line'' is often used in place of ''in line''.) Occasionally, both the British and American terms are combined to form the term "queue line". Examples include checking out groceries or other goods that have been collected in a self service shop, in a shop without self-service, at an ATM, at a ticket desk, a city bus, or in a taxi stand. Queueing is a phenomenon in a number of fields, and has been extensively analysed in the study of queueing theory. In economics, queueing is seen as one way to ration scarce goods and services. Types Physical History The first written description of people standing in line is found in an 1837 book, '' The French Revo ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

International Teletraffic Congress
The International Teletraffic Congress (ITC) is the first international conference in networking science and practice. It was created in 1955 by Arne Jensen to initially cater to the emerging need to understand and model traffic in telephone networks using stochastic methodologies, and to bring together researchers with these considerations as a common theme. Up through World War II, teletraffic research was done mainly by engineers and mathematicians working in telephone companies. Most of their work was published in local or company journals. In 1955, however, the field acquired a formal, international, institutional structure, with the organization of the first International Teletraffic Congress (ITC). Over the years, it has broaden its scope to address a wide spectrum ranging from the mathematical theory of traffic processes, stochastic system modelling and analysis, traffic and performance measurements, network management, traffic engineering to network capacity planning and c ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Hollandsche Maatschappij Der Wetenschappen
The Koninklijke Hollandsche Maatschappij der Wetenschappen (Royal Holland Society of Sciences and Humanities), located on the east side of the Spaarne in downtown Haarlem, Netherlands, was established in 1752 and is the oldest society for the sciences in the country. The society has been housed in its present location, called Hodshon Huis, since 1841. Nearby the society is the Teylers Museum, a closely related museum of natural history founded in 1784. In 2002 the society was awarded the predicate "Royal" when it celebrated 250 years of science studies. History of the society and museum The society started as a gentleman's club that met in the Haarlem City Hall to discuss science topics and promote the study of the arts and sciences. They pooled resources to purchase books and specimens for study, which were kept in the town hall until they purchased a building on the Grote Houtstraat (nr. 51, since unrecognizably rebuilt), where the curator of the collection lived. Under the direc ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]