... Three energetic mechanisms are considered: multiple supernova explosions (SNe), a hypernova explosion associated with a gamma ray burst (GRB), and the vertical impact of a high velocity cloud (HVC). ... As a consequence, multiple SNe form rings with a high ring-to-center contrast K < 100 in the HI column density, whereas single hypernova explosions form rings with K < 10. ... Our simulations show (see Fig. 6) that both multiple SNe and single hypernovae may form rings of up to 2 kpc in diameter. ...
... THE 'VON OPEL FLIGHTS' . ... Raab, with his partner Diploma Engineer Kurt Katzenstein would apply to their lightest aeroplane the solid-propellant Sander rockets that had proven themselves so well in Fritz von Opel's rocket cars. ... The von Opel-Sander-Stamer-Lippisch tests were elevated to a full-scale airplane immediately after the model flights ; in effect, this was to be the first manned rocket flight. ... FRITZ VON OPEL at the controls of the Opel Sander Rak. 1 rocket plane. ...
... Soc. 427, 790805 (2012) doi:10.1111/j.1365-2966.2012.21990.x Ages and abundances in large-scale stellar discs of nearby S0 galaxies O. K. Sil'chenko,1,2 I. S. Proshina,1 A. P. Shulga1 and S. E. Koposov 1 2 3 1,3 Sternberg Astronomical Institute of the Lomonosov Moscow State University, Moscow, Russia Isaac Newton Institute of Chile, Moscow Branch, Moscow, Russia Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 OHA Accepted 2012 August 23. ... S0s fading from spirals. ...
... Программа генератор тестов. ... тестов. | ... Файлы тестов (с расширением qml). ... End Sub | ... End | ... require $func_dir.'print_file.pl';#Функция вывода html файла-шаблона | ... require $func_dir.'get_cfg.pl';#Получение имени предмета теста | ... require $func_dir.'first_vivod.pl';#Вывод ссылок на группы тестов/опросов | require $func_dir.'second_vivod.pl';#Вывод ссылок на тесты/опросы в данной категрии | ... require $func_dir.'first_vivod.pl';#Получение и вывод всех ссылок на группы тестов | ...