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Dov Levine
Dov I. Levine (דב לוין, born July 19, 1958) is an American-Israeli physicist, known for his research on quasicrystals, soft condensed matter physics (including granular materials, emulsions, and foams), and statistical mechanics out of equilibrium. Education and career The son of a professor of physical chemistry, Dov Levine grew up in New York. He graduated in 1979 with a B.S. from Stony Brook University and in 1986 with a Ph.D. in physics from the University of Pennsylvania. His Ph.D. thesis ''Quasicrystals: A New Class of Ordered Structure'' was supervised by Paul Steinhardt. In 1981, Levine and Steinhardt began developing their theory of a hypothetical new form of matter with icosahedral symmetry (or other forbidden symmetries) that violated the century-old laws of crystallography. The idea, motivated by their study of Penrose tilings ,was to consider atomic arrangements that are quasiperiodic rather than periodic. They introduced the term quasicrystals, short for qu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quasicrystal
A quasiperiodic crystal, or quasicrystal, is a structure that is ordered but not periodic. A quasicrystalline pattern can continuously fill all available space, but it lacks translational symmetry. While crystals, according to the classical crystallographic restriction theorem, can possess only two-, three-, four-, and six-fold rotational symmetries, the Bragg diffraction pattern of quasicrystals shows sharp peaks with other symmetry orders—for instance, five-fold. Aperiodic tilings were discovered by mathematicians in the early 1960s, and, some twenty years later, they were found to apply to the study of natural quasicrystals. The discovery of these aperiodic forms in nature has produced a paradigm shift in the field of crystallography. In crystallography the quasicrystals were predicted in 1981 by a five-fold symmetry study of Alan Lindsay Mackay,—that also brought in 1982, with the crystallographic Fourier transform of a Penrose tiling,Alan L. Mackay, "Crystall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York Academy Of Sciences
The New York Academy of Sciences (originally the Lyceum of Natural History) was founded in January 1817 as the Lyceum of Natural History. It is the fourth oldest scientific society in the United States. An independent, nonprofit organization with more than members in 100 countries, the academy has a mission to advance scientific research and knowledge, support scientific literacy, and promote science-based solutions to global challenges. The academy hosts programs and publishes scholarly scientific content in the life, physical, and social sciences, including several areas of cross-discipline inquiry such as nutrition, artificial intelligence, space exploration, and sustainability. The academy's programs and publications are designed to discuss and disseminate accurate and timely scientific information to its members, the broad scientific community, the media, and the public. The academy also provides professional and educational resources for researchers across all phases of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Israeli Materials Scientists
Israeli may refer to: * Something of, from, or related to the State of Israel * Israelis, citizens or permanent residents of the State of Israel * Modern Hebrew, a language * ''Israeli'' (newspaper), published from 2006 to 2008 * Guni Israeli (born 1984), Israeli basketball player See also * Israelites The Israelites (; , , ) were a group of Semitic-speaking tribes in the ancient Near East who, during the Iron Age, inhabited a part of Canaan. The earliest recorded evidence of a people by the name of Israel appears in the Merneptah Stele o ..., the ancient people of the Land of Israel * List of Israelis {{disambiguation Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Condensed Matter Physicists
Condensation may refer to: * Condensation, the change in matter of a substance to a denser phase * DNA condensation, the process of compacting DNA molecules * Cloud condensation nuclei, airborne particles required for cloud formation * Condensation (aerosol dynamics), a phase transition from gas to liquid * Condensation cloud, observable at large explosions in humid air * Condensation reaction, in chemistry, a chemical reaction between two molecules or moieties * Condensation algorithm, in computer science, a computer vision algorithm * Condensation (graph theory), in mathematics, a directed acyclic graph formed by contracting the strongly connected components of another graph * Dodgson condensation, in mathematics, a method invented by Lewis Carroll for computing the determinants of square matrices * Bose–Einstein condensation, a state of matter of a dilute gas in which quantum effects become apparent on a macroscopic scale * Condensation (psychology) Condensed may refer to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Florida Faculty
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". Universities typically offer both undergraduate and postgraduate programs. The first universities in Europe were established by Catholic Church monks. The University of Bologna (), Italy, which was founded in 1088, is the first university in the sense of: *being a high degree-awarding institute. *using the word ''universitas'' (which was coined at its foundation). *having independence from the ecclesiastic schools and issuing secular as well as non-secular degrees (with teaching conducted by both clergy and non-clergy): grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hild ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stony Brook University Alumni , a Lithuanian family name
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Stony may refer to: Places * Stony Brook (other) * Stony Creek (other) * Stony Lake (other) * Stony River (other) * Stony Island (other) * Stony Point (other) * Stony Mountain (Missouri) * Stony Down, a hill and an area of forested countryside in the county of Dorset, England * Stony Pass, a mountain pass in the San Juan Mountains of southwest Colorado Other uses * Stony (rapper) (born 1995), Icelandic actor and rapper * Stony Awards, also known as "the Stonys", recognizing the "highest and stoniest" movies and TV shows of the year * Stony Stratford, or "Stony", part of Milton Keynes See also * Stoney (other) * Stonys Stonys is the masculine form of a Lithuanian family name. Its feminine forms are: Stonienė (married woman or widow) and Stonytė (unmarried woman). The surname may refer to: * Audrius Stonys, Lithuanian film director * Modestas Stonys, Lithuania ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1958 Births
Events January * January 1 – The European Economic Community (EEC) comes into being. * January 3 – The West Indies Federation is formed. * January 4 ** Edmund Hillary's Commonwealth Trans-Antarctic Expedition completes the third overland journey to the South Pole, the first to use powered vehicles. ** Sputnik 1 (launched on October 4, 1957) falls to Earth from its orbit, and burns up. * January 13 – Battle of Edchera: The Moroccan Army of Liberation ambushes a Spanish patrol. * January 27 – A Soviet-American executive agreement on cultural, educational and scientific exchanges, also known as the " Lacy–Zarubin Agreement", is signed in Washington, D.C. * January 31 – The first successful American satellite, Explorer 1, is launched into orbit. February * February 1 – Egypt and Syria unite, to form the United Arab Republic. * February 6 – Seven Manchester United footballers are among the 21 people killed in the Munich air disaster in West Germany, on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biham–Middleton–Levine Traffic Model
The Biham–Middleton–Levine traffic model is a self-organizing cellular automaton traffic flow model. It consists of a number of cars represented by points on a lattice with a random starting position, where each car may be one of two types: those that only move downwards (shown as blue in this article), and those that only move towards the right (shown as red in this article). The two types of cars take turns to move. During each turn, all the cars for the corresponding type advance by one step if they are not blocked by another car. It may be considered the two-dimensional analogue of the simpler Rule 184 model. It is possibly the simplest system exhibiting phase transitions and self-organization. History The Biham–Middleton–Levine traffic model was first formulated by Ofer Biham, A. Alan Middleton, and Dov Levine in 1992. Biham ''et al'' found that as the density of traffic increased, the steady-state flow of traffic suddenly went from smooth flow to a complete jam. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudin–Shapiro Sequence
In mathematics, the Rudin–Shapiro sequence, also known as the Golay–Rudin–Shapiro sequence, is an infinite 2- automatic sequence named after Marcel Golay, Walter Rudin, and Harold S. Shapiro, who independently investigated its properties. Definition Each term of the Rudin–Shapiro sequence is either 1 or -1. If the binary expansion of n is given by :n = \sum_ \epsilon_k(n) 2^k, then let :u_n = \sum_ \epsilon_k(n)\epsilon_(n). (So u_n is the number of times the block 11 appears in the binary expansion of n.) The Rudin–Shapiro sequence (r_n)_ is then defined by :r_n = (-1)^. Thus r_n = 1 if u_n is even and r_n = -1 if u_n is odd. The sequence u_n is known as the complete Rudin–Shapiro sequence, and starting at n = 0, its first few terms are: :0, 0, 0, 1, 0, 0, 1, 2, 0, 0, 0, 1, 1, 1, 2, 3, ... and the corresponding terms r_n of the Rudin–Shapiro sequence are: :+1, +1, +1, −1, +1, +1, −1, +1, +1, +1, +1, −1, −1, −1, +1, −1, . ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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