Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Willibald Riedler"'
Autor:
S. Kastner-Puschl, Willibald Riedler, Michael Schmidt, Otto Koudelka, Harald Schlemmer, Johannes Ebert
Publikováno v:
Acta Astronautica. 55:255-259
≪ In the framework of ESA's ARTES-5 program the Institute of Applied Systems Technology (Joanneum Research) in cooperation with the Department of Communications and Wave Propagation has developed a novel meshed satellite communications system which
Autor:
Michael Schmidt, Willibald Riedler, Harald Schlemmer, Johannes Ebert, Otto Koudelka, Wolfgang Kogler, Wilfried Gappmair, S. Kastner-Puschl
Publikováno v:
Acta Astronautica. 53:455-464
Due to the exponential growth of the Internet, the protocol suite of the Internet has become dominant. In the past, satellite communications systems used proprietary protocols. More recently, satellite multimedia architectures have been based on ATM
Publikováno v:
e & i Elektrotechnik und Informationstechnik. 116:286-288
Autor:
Willibald Riedler
Publikováno v:
Advances in Space Research. 3:103-110
Scientific ballooning as well as the use of balloons for operational projects, deserves and indeed enjoys a high degree of attention in developing countries. Balloon projects are in most cases relatively inexpensive and - besides the scientific merit
Autor:
Klaus Torkar, N.A. Leonov, A. A. Martinson, S.B. Lyakhov, Martin Friedrich, Willibald Riedler, G. G. Managadze
Publikováno v:
Advances in Space Research. 8:193-196
Direct and indirect potential measurements of a very high flying sounding rocket, which carried a powerful electron accelerator are reported. The observed payload potential during the pulses does not always follow the accelerator voltage. Observation
Autor:
T. G. Adeishvily, L. S. Novikov, I.I. Slyusarenko, N.A. Leonov, Martin Friedrich, Willibald Riedler, R.I. Moisya, G. G. Managadze, S.B. Lyakhov, T.I. Gagua, A. A. Martinson, R. Z. Sagdeev, Yu.A. Romanovsky
Publikováno v:
Advances in Space Research. 1:129-140
This paper describes two rocket experiments “Aelita” with high power lithium plasma injection. The results of onboard magnetometer, massspectrometer, photometer, plasma, corpuscular and ground radar measurements are given. Dynamics and structure
Publikováno v:
Advances in Space Research. 8:111-114
Suprathermal electrons precipitated in response to SEPAC electron accelerator activity on board Spacelab 1 have been observed by a channeltron electron spectrometer covering the energy range from 0.1 to 12.5 keV. Three series of beams of 1 to 5 secon
Publikováno v:
Planetary and Space Science. 25:823-831
Measurements by balloon-borne instruments, data from the satellites Explorer 41 and 43 and riometer recordings were used to investigate the influence of magnetospheric processes on the precipitation of energetic solar protons related to the occurrenc
Autor:
Arne Pedersen, Leonid Lazutin, Willibald Riedler, Göran Marklund, R. J. Pellinen, T. V. Kozelova, J.P. Treilhou, V.G. Petrov, I.Z. Zhulin
Publikováno v:
Advances in Space Research. 5:163-169
Measurements of the electric field in the ionosphere and the equatorial plane during the pre-onset and actives phases of a substorm (March 4, 1979) are compared. Correlations and disagrements between the measurements are considered. The preliminary c
Autor:
A. N. Laliashvili, O.A. Povalyaev, S.B. Lyakhov, Willibald Riedler, A.D. Maiorov, Martin Friedrich, A. I. Chmil, L. Yu. Kochmarev, A. Kiraga, G. G. Managadze, E. G. Shustin, N.A. Leonov, Z. Kloss, Z. Kravchic
Publikováno v:
Planetary and Space Science. 30:347-357
Laboratory results of beam plasma discharge (BPD) (dimensions several metres) in a homogeneous atmosphere and a jet of neutral gas are presented. The beam was obtained by an electron gun of the same type as used in rocket experiments. The BPD paramet