Frenkel yakov ilich (2 Ergebnisse)

Hardcover. Zustand: Good. 247, [1], pages, plus slip at back. Footnotes. Illustrations. Mathematical Formulae. Cover has wear and soiling. Corners bumped. Name and date in pencil on fep. Black and white photograph of Volgograd Cathedral laid in. From an essay by A. I. Akhiezer in honor of Frenkel's centenary: "At the end of 1938. the phenomenon of nuclear fission was discovered in uranium. The very next year, Yakov Il'ich presented the theory of fission of heavy nuclei. He set out from the idea that fission should be treated as a consequence of the vibrations of a charged drop. A little later, Bohr and Wheeler used the same idea as the basis of their theory of nuclear fission. The quantitative theory was developed by Yakov Il'ich for small vibrations of a drop while fission is associated with large vibrations. Nevertheless, Yakov Il'ich was able to explain correctly the mechanism and main features of fission. It should be added that small vibrations of a drop are significant in themselves since they form the basis of the modern theory of collective excitations of atomic nuclei.A perusal of his "Principles of the Theory of Atomic Nuclei" or "Introduction to the Theory of Metals" is really gratifying because of the richness and profundity of his ideas, the clarity of "good" physics in which these books abound, and the mastery of presentation." Yakov Il'ich Frenkel (10 February 1894 - 23 January 1952) was a Soviet physicist renowned for his works in the field of condensed matter physics. He is also known as Jacov Frenkel.He was born in a Jewish family in Rostov on Don on 10 February 1894. He entered St. Petersburg University in 1910. Frenkel graduated from the university in 3 years and remained there to prepare for a professorship. In 1912 he finished his first work in physics on the earth's magnetic field and atmospheric electricity. This work attracted Abram Ioffe's attention and later turned into collaboration.From 1921 till the end of his life, Frenkel worked at the Physico-Technical Institute. Beginning in 1922, Frenkel published a book virtually every year. He was the author of the first theoretical course in the Soviet Union. For his distinguished scientific service, he was elected a corresponding member of the USSR Academy of Sciences in 1929. He served as a visiting professor at the University of Minnesota in the United States for a short period of time in around 1930.When conducting research on the molecular theory of condensed state, he introduced the notion of the hole. The Frenkel defect became firmly fixed in the physics of solids and liquids. In the 1930s, his research was supplemented with works on the theory of plastic deformation. His theory, now known as the Frenkel-Kontorova-Tomlinson model, is important in the study of dislocations.He contributed to semiconductor and insulator physics by proposing a theory, which is now commonly known as the Poole-Frenkel effect, in 1938. "Poole" refers to H. H. Poole (Horace Hewitt Poole, 1886-1962), Ireland. Poole reported experimental results on the conduction in insulators and found an empirical relationship between conductivity and electrical field. Frenkel later developed a microscopic model, similar to the Schottky effect, to explain Poole's results more accurately.In 1947, his Kinetic Theory of Liquids was awarded the First Grade State Prize. However, even at that time there existed the first hint of a change in the socialism policy; and the first gust of cold wind reached Frenkel soon after the anniversary. The ensuing political persecution affected not only Frenkel, but also many other prominent scientists. Frenkel's work was criticized for not contributing to the construction of the society of great socialism. His contributions in quantum mechanics and the theory of relativity were labeled as servility to Western science. His publications in the Western journals were unpatriotic. Several of his best books were published in German and English before they became available in Russian. To his a.…

Birkhäuser Verlag, Basel und Stuttgart 1996. 8vo. VIII + 323 pages. Illustrated in b/w. Orig. boards. With an inscription on the fly leaf. * The inscription says: "To Prof. A. Bohr with kind regards from the author V. Frenkel, S. Pb. 20 VI '96". Yakov Frenkel was one of Soviet's leading physicists renowned for his work with condensed matter physics.…