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Petch Osathanugrah
Petch may refer to: * Henry Petch, partner of Perkins, Bacon & Petch * Howard Petch (born 1925), Canadian academic administrator * Ivan Petch (born 1939), former Australian politician * Karen Petch, English broadcaster and news presenter * Mark Petch, founder of Mark Petch Motorsport * N. J. Petch, co-discoverer of the Hall-Petch relationship * Tom Petch Thomas Petch (born Hornsea, Yorkshire, 11 March 1870; died King's Lynn, Norfolk, 24 December 1948) was a prolific English mycologist and plant pathologist best remembered for his work on the interaction between fungi and insects. Biography ... (1870–1948), English mycologist * Rattana Petch-Aporn (born 1982), Thai footballer {{surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perkins, Bacon & Petch
Messrs. Perkins, Bacon & Co was a printer of books, bank notes and postage stamps, most notable for printing the Penny Black, the world's first adhesive postage stamps, in 1840. {{Infobox , above = Details on the mode of preventing the forgery of bank notes , subheader = , subheader2 = , data1 = England’s currency was being forged at an alarming rate. The smaller bills were even being forged by people with little skill. They made this a crime punishable by death, but this did nothing to stop the forgery. England had the Royal Society create several reports on the problems, starting about 1818. They looked worldwide at currencies and really liked the American inventor Jacob Perkins’ bills for Massachusetts. The new USA «National Bank» chose Perkins plates to print the new national currency in the USA. In England, Charles Heath even gave a speech about him to the Royal Society. Jacob Perkins not only invented soft steel plates that could be hardened after being engraved, h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Howard Petch
Howard Earle Petch, (12 May 1925 – 26 November 2018) was a Canadian academic administrator. Petch was the President of the University of Waterloo and the University of Victoria. He received a Bachelor of Science, honours in physics and chemistry from McMaster University in 1949. He received his Ph.D. in physics from the University of British Columbia in 1952. He joined the department of physics at McMaster University in 1954. From 1958 to 1961 he was the chairman of the department of metallurgical engineering and was the Director of Research from 1961 to 1963. From 1963 to 1967, he was the Principal of Hamilton College. In 1967, he became the Vice-President (academic) and a Professor of physics at the University of Waterloo. From 1969 to 1970, he was the President pro tem of the University of Waterloo. In 1975, he became President and Vice-Chancellor of the University of Victoria. He also was a Professor of physics. He retired in 1990. In 1990, he was awarded the Order of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ivan Petch
Ivan () is a Slavic male given name, connected with the variant of the Greek name (English: John) from Hebrew meaning 'God is gracious'. It is associated worldwide with Slavic countries. The earliest person known to bear the name was Bulgarian tsar Ivan Vladislav. It is very popular in Russia, Ukraine, Croatia, Serbia, Bosnia and Herzegovina, Slovenia, Bulgaria, Belarus, North Macedonia, and Montenegro and has also become more popular in Romance-speaking countries since the 20th century. Etymology Ivan is the common Slavic Latin spelling, while Cyrillic spelling is two-fold: in Bulgarian, Russian, Macedonian, Serbian and Montenegrin it is Иван, while in Belarusian and Ukrainian it is Іван. The Old Church Slavonic (or Old Cyrillic) spelling is . It is the Slavic relative of the Latin name , corresponding to English ''John''. This Slavic version of the name originates from New Testament Greek (''Iōánnēs'') rather than from the Latin . The Greek name is in tur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karen Petch
Karen Armstrong (19 June 1969 – 21 June 2019), known professionally as Karen Petch, was an English broadcaster and journalist, best known for her work with ITV Yorkshire. Petch was a presenter for 96.9 Viking FM in Hull before moving to Leeds to become a continuity announcer for Yorkshire Television during the 1990s. Whilst working in continuity, Petch also worked as a relief in-vision announcer on Tyne Tees Television. She later switched from YTV's Presentation department to the newsroom, as a reporter and presenter for the regional news programme ''Calendar'', fronting many of the short ''Calendar News'' bulletins, including the opt-out service for the East of the region. She was also a presenter for short-lived digital lifestyle channel Wellbeing in 2001. Petch died in June 2019 at the age of 50 after a battle with breast cancer Breast cancer is cancer that develops from breast tissue. Signs of breast cancer may include a lump in the breast, a change in breast shape, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark Petch Motorsport
Mark Petch Motorsport was a motor racing team that competed in Australian and New Zealand motorsport. History Mark Petch Motorsport was formed in 1985 by former New Zealand National Championship winner Mark Petch who by 1985 had become a wealthy designer and manufacturer of industrial seals. Autoquip A was imported from Belgium and debuted at the 1985 with and former Works |
Hall-Petch Relationship
In materials science, grain-boundary strengthening (or Hall–Petch strengthening) is a method of strengthening materials by changing their average crystallite (grain) size. It is based on the observation that grain boundaries are insurmountable borders for dislocations and that the number of dislocations within a grain has an effect on how stress builds up in the adjacent grain, which will eventually activate dislocation sources and thus enabling deformation in the neighbouring grain as well. So, by changing grain size, one can influence the number of dislocations piled up at the grain boundary and yield strength. For example, heat treatment after plastic deformation and changing the rate of solidification are ways to alter grain size.W.D. Callister. Fundamentals of Materials Science and Engineering, 2nd ed. Wiley & Sons. pp. 252. Theory In grain-boundary strengthening, the grain boundaries act as pinning points impeding further dislocation propagation. Since the lattice st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tom Petch
Thomas Petch (born Hornsea, Yorkshire, 11 March 1870; died King's Lynn, Norfolk, 24 December 1948) was a prolific English mycologist and plant pathologist best remembered for his work on the interaction between fungi and insects. Biography Petch was educated at the choir school of Holy Trinity at Hull, and taught at the King's Lynn Grammar School and Leyton Technical Institute while preparing for external degrees at the University of London. Petch had an early interest in natural history, but Charles Plowright, a doctor and mycologist in King's Lynn, encouraged him to study fungi. Through a friendship with George Massee of the Royal Botanical Gardens Petch was appointed Mycologist to the Government of Ceylon in 1905. He returned to England briefly to marry Edith Mary Plowright (b. 1875), Charles' daughter, in 1908. Petch held this position until 1924. After a leave to visit England, he returned to Ceylon as the founding director of the Tea Research Institute. In 1928 he re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
