Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Siegfried Auer"'
Publikováno v:
Key Engineering Materials. 711:950-957
In the paper two existing roads in Austria were examined on the focus of alkali silica reaction of concrete. The two roads have different ages. One is more than 50 years old one is round about 20 years old. The exposition was ordinary highway and cou
Autor:
Siegfried Auer
Publikováno v:
International Journal of Impact Engineering. 21:89-95
Silica (SiO 2 ) aerogel samples with densities of 0.008, 0.05, and 0.13 g/cm 3 were exposed to iron microparticles having speeds of ν = 3–83 km/s. Negative and positive charge carriers from the impact ionization were separated by an electric field
Autor:
Siegfried Auer
Publikováno v:
International Astronomical Union Colloquium. 150:251-254
A VELOCITY/TRAJECTORY cosmic dust sensor of the CHARGE-SENSING type was tested at the Heidelberg dust accelerator facility, using micronsized particles. The full-scale (0.4m x 0.4m x 0.3m) model displayed capabilities for providing accuracies to 0.1%
Autor:
Zoltán Sternovsky, Siegfried Auer, Keith Drake, Eberhard Grün, Mihály Horányi, Huy Le, Ralf Srama, Jianfeng Xie, Vladimir Yu. Nosenko, Padma K. Shukla, Markus H. Thoma, Hubertus M. Thomas
Publikováno v:
AIP Conference Proceedings.
In‐situ cosmic dust instruments and measurements played a critical role in the emergence of the field of dusty plasmas. The major breakthroughs included the discovery of β‐meteoroids, interstellar dust particles within the solar system, Jovian s
Autor:
Siegfried Auer
Publikováno v:
Astronomy and Astrophysics Library ISBN: 9783642626470
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff839afedcf481b495233060070ec6f9
https://doi.org/10.1007/978-3-642-56428-4_9
https://doi.org/10.1007/978-3-642-56428-4_9
Autor:
Siegfried Auer
Publikováno v:
Review of Scientific Instruments. 46:127-135
Two new methods are described to measure velocities and angles of incidence of charged cosmic dust particles with precisions of about 1% and 1 deg, respectively. Both methods employ four one-dimensional position-sensitive detectors in series. The fir
Autor:
Otto E. Berg, Siegfried Auer
Publikováno v:
Review of Scientific Instruments. 46:1530-1534
Iron microparticles were fired onto a capacitor‐type microparticle detector which responded to an impact with a spark discharge. Ion currents were extracted from the spark and analyzed in a time‐of‐flight mass spectrometer. The mass spectra sho
Publikováno v:
Science. 186:650-652
Autor:
Siegfried Auer
Publikováno v:
AIAA Journal. 9:516-518
Publikováno v:
Geophysical Research Letters. 1:289-290
A three-axis cosmic dust experiment placed on the lunar surface by the Apollo 17 crew is registering impact parameters of cosmic dust and lunar ejecta. A total of 1117 events have been recorded in eight months of data. Preliminary conclusions on the