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1 line of principal curvature
line of principal curvature Hauptkrümmungslinie fEnglish-German dictionary of Architecture and Construction > line of principal curvature
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2 curvature
1) изогнутость
2) искривленность
3) кривизна
4) криволинейность
5) закругление
6) искривление
7) изгиб
– center of curvature
– circle of curvature
– constancy of curvature
– curvature centroid
– curvature incline
– curvature line
– curvature of a meridian
– curvature of a parallel
– curvature of the Earth
– radius of curvature
– reversed curvature
– sectional curvature
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3 principal line of curvature
முதன்மை வளைவுக் கோடு -
4 vector
1) вектор || векторный2) матем. матрица-столбец3) аэро пеленг•vector at the origin — вектор, проведённый из начала координат
vector to enter basis — вектор, вводимый в базис
vector to leave basis — вектор, исключаемый из базиса
- almost periodic vector - almost proper vector - antiholomorphic tangent vector - extreme vector - flux vector - magnetic displacement vector - normal curvature vector - normal unit vector - time-similar vector - translation vectorvector with unit length — единичный вектор; орт
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5 index
1) индекс, указатель || вносить в указатель; снабжать указателем2) индекс, показатель || индексировать3) коэффициент4) метка•- index of a subgroup - index of critical point - index of multiple determination - reduced ramification index -
6 meridian
1) меридиан
2) меридианный
3) меридиональный
4) пассажный
5) плоскомеридианный
6) полуденный
– auxiliary meridian
– be drawn out of meridian
– celestial meridian
– central meridian
– curvature of a meridian
– geodetic meridian
– geographic meridian
– initial meridian
– local meridian
– magnetic meridian
– meridian altitude
– meridian arc
– meridian circle
– meridian distance
– meridian instrument
– meridian line
– meridian mark
– meridian of origin
– oberver's meridian
– observer's meridian
– prime meridian
– principal meridian
– scale in meridian
– true meridian
meridian transit telescope — <astr.> труба меридианная
slaving to the earth's meridian — коррекция гирокомпаса азимута
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7 matrix
1) мат. матрица || матричный2) форма, шаблон4) растр5) решётка6) таблица7) геол. материнская порода, основная масса ( породы)8) основа кристаллического вещества; кристаллическая решётка•- absolutely equivalent matrices - adjoint matrices - almost perfect matrix - almost periodic matrix - almost superdiagonal matrix - associative matrix - birth-death coefficient matrix - cocycle matrix - commutative matrix - commute matrices - commuting matrix - complex conjugate matrix - compound matrix - conjunctive matrices - consistently ordered matrix - constituent matrices - deficient matrix - doubly degenerated matrix - doubly stochastic matrix - encoding matrix - essentially positive matrix - magnetic core matrix - matrix of linear transformation - multiplicatively cogredient matrix - multiply degenerate matrix - mutually consistent matrices - nearly triangular matrix - negatively semidefinite matrix - nonnegatively semidefinite matrix - orthogonally similar matrices - positively definite matrix - positively semidefinite matrix - regularly partitioned matrix - strictly upper triangular matrix - strongly equivalent matrices - totally nonnegative matrix - totally positive matrix - totally unimodular matrix - uniformly tapered matrix - vertex incidence matrix - vertically symmetrical matrix - weakly cyclic matrix -
8 transformation
трансформация, трансформирование; превращение; преобразование- completely reducible transformation - convexity preserving transformation - identity transformation - inverted transformation - locally isomorphic transformation - locally linear transformation - locally quadratic transformation - normal transformation of binomial distribution - probability integral transformation - proper birational transformation - recursive transformation - uniform probability transformation - uniformly continuous transformation - uniformly regular transformation - weakly compact transformation - weakly completely continuous transformation - weakly mixing transformation - weakly open transformation - weakly separable transformation -
9 Heaviside, Oliver
[br]b. 18 May 1850 London, Englandd. 2 February 1925 Torquay, Devon, England[br]English physicist who correctly predicted the existence of the ionosphere and its ability to reflect radio waves.[br]Brought up in poor, almost Dickensian, circumstances, at the age of 13 years Heaviside, a nephew by marriage of Sir Charles Wheatstone, went to Camden House Grammar School. There he won a medal for science, but he was forced to leave because his parents could not afford the fees. After a year of private study, he began his working life in Newcastle in 1870 as a telegraph operator for an Anglo-Dutch cable company, but he had to give up after only four years because of increasing deafness. He therefore proceeded to spend his time studying theoretical aspects of electrical transmission and communication, and moved to Devon with his parents in 1889. Because the operation of many electrical circuits involves transient phenomena, he found it necessary to develop what he called operational calculus (which was essentially a form of the Laplace transform calculus) in order to determine the response to sudden voltage and current changes. In 1893 he suggested that the distortion that occurred on long-distance telephone lines could be reduced by adding loading coils at regular intervals, thus creating a matched-transmission line. Between 1893 and 1912 he produced a series of writings on electromagnetic theory, in one of which, anticipating a conclusion of Einstein's special theory of relativity, he put forward the idea that the mass of an electric charge increases with its velocity. When it was found that despite the curvature of the earth it was possible to communicate over very great distances using radio signals in the so-called "short" wavebands, Heaviside suggested the presence of a conducting layer in the ionosphere that reflected the waves back to earth. Since a similar suggestion had been made almost at the same time by Arthur Kennelly of Harvard, this layer became known as the Kennelly-Heaviside layer.[br]Principal Honours and DistinctionsFRS 1891. Institution of Electrical Engineers Faraday Medal 1924. Honorary PhD Gottingen. Honorary Member of the American Association for the Advancement of Science.Bibliography1872. "A method for comparing electro-motive forces", English Mechanic (July).1873. Philosophical Magazine (February) (a paper on the use of the Wheatstone Bridge). 1889, Electromagnetic Waves.1892, Electrical Papers.1893–1912, Electromagnetic Theory.Further ReadingI.Catt (ed.), 1987, Oliver Heaviside, The Man, St Albans: CAM Publishing.P.J.Nahin, 1988, Oliver Heaviside, Sage in Solitude: The Life and Works of an Electrical Genius of the Victorian Age, Institute of Electrical and Electronics Engineers, New York.J.B.Hunt, The Maxwellians, Ithaca: Cornell University Press.See also: Appleton, Sir Edward VictorKF
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