3,172 research outputs found
Seleção de linhagens precoces e tardias de amendoim rasteiro na Zona da Mata norte do estado de Pernambuco.
Exponential Distributions in a Mechanical Model for Earthquakes
We study statistical distributions in a mechanical model for an earthquake
fault introduced by Burridge and Knopoff [R. Burridge and L. Knopoff, {\sl
Bull. Seismol. Soc. Am.} {\bf 57}, 341 (1967)]. Our investigations on the size
(moment), time duration and number of blocks involved in an event show that
exponential distributions are found in a given range of the paramenter space.
This occurs when the two kinds of springs present in the model have the same,
or approximately the same, value for the elastic constants. Exponential
distributions have also been seen recently in an experimental system to model
earthquake-like dynamics [M. A. Rubio and J. Galeano, {\sl Phys. Rev. E} {\bf
50}, 1000 (1994)].Comment: 11 pages, uuencoded (submitted to Phys. Rev. E
Elaboração e aceitação sensorial de estruturado misto obtido a partir de polpas de taperebá e goiaba.
Desenvolvimento do lírio-da-caatinga [(Zephyranthes sylvatica (Mart.) Baker (Alliaceae s.l.)].
Caracterização, colheita, conservação e embalagem de méis de abelhas indígenas sem ferrão.
bitstream/item/129066/1/Livro-Meis-ASF.pd
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