|
Kerckhoff
Kerckhoff or Kerckhoffs is a Dutch and Low German toponymic surname meaning "church yard" (modern Dutch ''kerkhof''). An ancestor may have lived near or worked in the church yard, or have come from a number of villages and hamlets named ''Kerkhove'' or ''Kerkhoven''.Marine Laboratory'' is owned and operated by the California Institute of Technology (Caltech). It is located 101 Dahlia Street, in the Corona del Mar district of Newport Beach, in Orange County, California. History T ..., southern California marine station owned and operated by Caltech named after him See also * Kirchhoff, German cognate surname References {{surname, Kerckhoff Dutch-language surnames Low German surnames Toponymic surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kerckhoffs' Principle
Kerckhoffs's principle (also called Kerckhoffs's desideratum, assumption, axiom, doctrine or law) of cryptography was stated by Dutch-born cryptographer Auguste Kerckhoffs in the 19th century. The principle holds that a cryptosystem should be secure, even if everything about the system, except the key, is public knowledge. This concept is widely embraced by cryptographers, in contrast to security through obscurity, which is not. Kerckhoffs's principle was phrased by American mathematician Claude Shannon as "the enemy knows the system", i.e., "one ought to design systems under the assumption that the enemy will immediately gain full familiarity with them". In that form, it is called Shannon's maxim. Another formulation by American researcher and professor Steven M. Bellovin is: In other words — design your system assuming that your opponents know it in detail. (A former official at NSA's National Computer Security Center told me that the standard assumption there was that s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auguste Kerckhoffs
Auguste Kerckhoffs (19 January 1835 – 9 August 1903) was a Dutch linguistics, linguist and cryptographer in the late 19th century. Biography Kerckhoffs was born in Nuth, the Netherlands, as Jean Guillaume Auguste Victor François Hubert Kerckhoffs, son of Jean Guillaume Kerckhoffs, mayor of the village of Nuth, and Jeanette Elisabeth Lintjens. Kerckhoffs studied at the University of Liège. After a period of teaching in schools in the Netherlands and France, he became a professor of German language at the HEC Paris, École des Hautes Études Commerciales (Paris) and the Lycée Arago (Paris), École Arago. Principles He is best known today for his two part paper published in 1883 in ''Le Journal des Sciences Militaires'' (''Journal of Military Science'') entitled ''La Cryptographie Militaire'' (''Military Cryptography''). These articles surveyed the then state-of-the-art in military cryptography, and made a plea for considerable improvements in French practice. They al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Kerckhoffs
Joseph Romain Louis Kerckhoffs ( Nuth, 3 September 1789 – Mechelen, 10 October 1867) was a Dutch physician. He was a physician in Napoleon's army and after 1815 chief physician of the Dutch military hospitals. Numerous publications have been published by him to promote (military) medicine and combat quackery. Biography Kerckhoffs was born in Grijzegrubben, Nuth, as the son of Joannes Franciscus Carolus Kerckhoffs, alderman, mayor and surgeon in Nuth. After being homeschooled by the Jesuit /home teacher Ceurvorst, he left for Heidelberg at the age of 16 to study law at the insistence of his parents, but Kerckhoffs chose to study medicine instead, obtaining his doctorate in 1811. On 23 January 1814 Kerckhoffs married Gregorine Chapuis in Maastricht, with whom he had a son in 1817: Eugène. In the 1810s and 1820s he served in the French and Dutch armies. He lived the last years of his life with his son in Mechelen, where he died in 1867 at the age of 78. Career as an army doctor Af ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steven Kerckhoff
Steven Paul Kerckhoff (born 1952) is a professor of mathematics at Stanford University, who works on hyperbolic 3-manifolds and Teichmüller spaces. He received his Ph.D. in mathematics from Princeton University in 1978, under the direction of William Thurston. Among his most famous results is his resolution of the Nielsen realization problem, a 1932 conjecture by Jakob Nielsen. Along with William J. Floyd, he wrote large parts of Thurston's influential Princeton lecture notes, and he is well known for his work (some of which is joint with Craig Hodgson) in exploring and clarifying Thurston's hyperbolic Dehn surgery. Kerckhoff is one of four academics from Stanford University, along with Gunnar Carlsson, Ralph Cohen, and R. James Milgram, who were instrumental in developing the controversial California Mathematics Academic Content Standards for the State Board of Education. Selected publications * * Kerckhoff, Steven P.; Thurston, William P., ''Noncontinuity of the action o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kerckhoff Dam
Kerckhoff Dam is a concrete arch dam on the San Joaquin River in Fresno County, California, about southwest of Big Creek. The tall dam is a run-of-the-river facility impounding of water and is the primary feature of Pacific Gas and Electric's Kerckhoff hydroelectric project. The dam and its reservoir provide water for the Kerckhoff Powerhouses No. 1 and No. 2. Powerhouse No. 1 has three Francis turbines producing a maximum of 38 megawatts (MW) and Powerhouse No. 2 has a single Francis turbine rated at 155 MW for a total project capacity of 193 MW. An annual 579.1 million KWh of electricity are generated here. Completed in 1920, the dam and Powerhouse No. 1 were the first to utilize the San Joaquin River for hydroelectricity. The second powerhouse was added in 1983. The dam, named for William GeorgKerckhoff was part of the "Big Creek Hydroelectric Project", the largest construction project in the world in 1910.https://www.tribstar.com/features/history/historical-perspective-th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sylvia Kerckhoff
Sylvia Kerckhoff (born 1928) is an American politician who served as the mayor of Durham, North Carolina, from 1993 to 1997. Early life and education Kerckhoff was born in Toledo, Ohio, in 1928. She graduated from the University of Wisconsin–Madison in 1950 with a degree in psychology and later went to Duke University, from which she graduated in 1960 with a Master of Arts in history and education. Career Kerckhoff became Durham's first female mayor after defeating incumbent Harry Rodenhizer in the 1993 Durham mayoral election. She was reelected the 1995 Durham mayoral election. See also *List of first women mayors According to Anne Hidalgo, Mónica Fein, Célestine Ketcha Courtès and Ada Colau of The World Organization of United Cities and Local Governments (UCLG) in 2017, in an article titled "Women mayors are ready to stand up and be counted," 18th and ... References 1928 births Living people Mayors of Durham, North Carolina University of Wisconsin–Madiso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kerckhoff Marine Lab
The William G. Kerckhoffbr>Marine Laboratory'' is owned and operated by the California Institute of Technology (Caltech). It is located 101 Dahlia Street, in the Corona del Mar district of Newport Beach, in Orange County, California. History The marine laboratory was established by biologist Thomas Hunt Morgan in 1928 to replicate the facilities at the Stazione Zoologica in Naples, Italy. Caltech made the decision to purchase the facility in 1929. It is one of the oldest marine laboratories on the West Coast of the United States. From 1962 until his death in 2002, Dr. Wheeler J. North conducted numerous studies on the ecology of the California kelp forests while based at this laboratory. During the 1990s and 2000s investigators included members of the Eric Davidson lab working on various marine biology related projects. The current Director of the Kerckhoff Marine Lab is Prof. Victoria J. Orphan, who maintains an activresearch programthere. See also * Marine biology *Marine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Kerckhoff
Hermann Walter Kerckhoff (December 27, 1937 – April 29, 2023) was a slalom canoeist who competed in the early 1970s. He finished 37th in the K-1 event at the 1972 Summer Olympics in Munich. Born in Berlin Berlin ( , ) is the capital and largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's most populous city, according to population within city limits. One of Germany's sixteen constitue ..., Germany, Kerckhoff immigrated to Canada in 1955. Along with his wife, he created Canada's first whitewater paddling school, Madawaska Kanu Centre, and OWL Rafting. His daughter, Claudia, is a 10-time Canadian slalom champion. See also * List of German Canadians References * 1937 births 2023 deaths Canoeists from Berlin Canadian male canoeists Canoeists at the 1972 Summer Olympics Olympic canoeists for Canada German emigrants to Canada {{Canada-canoe-bio-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kerkhof
Kerkhof is a Dutch toponymic surname meaning "church garden”, Pronounced Kerik-hof. Largely a historically Catholic name in the Netherlands. Alternative spellings include: Kerekhoff, Kerkhoff, Van Kerkhof. An ancestor may have lived near or worked in the church yard, or have come from a number of villages and hamlets named ''Kerkhove'' or ''Kerkhoven''. at the Database of Surnames in the Netherlands Among variant forms of the surname are (s), ''Kerkhoff(s)'', Kerkhove(n), and ''Van (de) Kerkhof(f)''. Notable people with the surnam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dutch-language Surnames
Dutch ( ) is a West Germanic language spoken by about 25 million people as a first language and 5 million as a second language. It is the third most widely spoken Germanic language, after its close relatives German and English. ''Afrikaans'' is a separate but somewhat mutually intelligible daughter languageAfrikaans is a daughter language of Dutch; see , , , , , . Afrikaans was historically called Cape Dutch; see , , , , , . Afrikaans is rooted in 17th-century dialects of Dutch; see , , , . Afrikaans is variously described as a creole, a partially creolised language, or a deviant variety of Dutch; see . spoken, to some degree, by at least 16 million people, mainly in South Africa and Namibia, evolving from the Cape Dutch dialects of Southern Africa. The dialects used in Belgium (including Flemish) and in Suriname, meanwhile, are all guided by the Dutch Language Union. In Europe, most of the population of the Netherlands (where it is the only official language spoken countryw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kirchhoff
Kirchhoff, Kirchoff or Kirchhoffer is a German surname. Notable people with the surname include: * Adolf Kirchhoff (1826–1908), German classical scholar and epigrapher * Alfred Kirchhoff (1838–1907), German geographer and naturalist * Alphonse Kirchhoffer (1873–1913), French Olympic fencer * Charles William Henry Kirchhoff (1853-1916), American editor and metals expert * Detlef Kirchhoff (born 1967), German rower * Fritz Kirchhoff (1901–1953), German screenwriter, film producer and director * Gustav Kirchhoff (1824–1887), German physicist — Kirchhoff's laws in electricity, spectroscopy, thermochemistry * Gottlieb Kirchhoff (1764–1833), German chemist * Jan Kirchhoff (born 1990), German footballer * Mary Kirchoff (born 1959), American fantasy novelist * Paul Kirchhoff (1900–1972), German anthropologist and ethnologist of pre-Columbian Mesoamerican cultures * Robert Kirchhoff (born 1962), Slovak film director * Ulrich Kirchhoff (born 1967), German show jumper See als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dutch Language
Dutch ( ) is a West Germanic language spoken by about 25 million people as a first language and 5 million as a second language. It is the third most widely spoken Germanic language, after its close relatives German and English. ''Afrikaans'' is a separate but somewhat mutually intelligible daughter languageAfrikaans is a daughter language of Dutch; see , , , , , . Afrikaans was historically called Cape Dutch; see , , , , , . Afrikaans is rooted in 17th-century dialects of Dutch; see , , , . Afrikaans is variously described as a creole, a partially creolised language, or a deviant variety of Dutch; see . spoken, to some degree, by at least 16 million people, mainly in South Africa and Namibia, evolving from the Cape Dutch dialects of Southern Africa. The dialects used in Belgium (including Flemish) and in Suriname, meanwhile, are all guided by the Dutch Language Union. In Europe, most of the population of the Netherlands (where it is the only official language spoken country ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
