Results 351 to 360 of about 405,081 (406)
Some of the next articles are maybe not open access.
14th International Communication Satellite Systems Conference and Exhibit, 1992
The tested physical and performance characteristics of the ACTS spacecraft are presented with emphasis placed on those for the multibeam antenna, the communications electronics panel, and the bus. Performance measurements for the multibeam antenna agree with predicted parameters, and the electronics panel provides four transponder channels for ...
openaire +2 more sources
The tested physical and performance characteristics of the ACTS spacecraft are presented with emphasis placed on those for the multibeam antenna, the communications electronics panel, and the bus. Performance measurements for the multibeam antenna agree with predicted parameters, and the electronics panel provides four transponder channels for ...
openaire +2 more sources
Planetary and Space Science, 2001
Abstract In June 1999, Dr. Regis Courtin, Associate Editor of PSS, suggested that I write an article for the new section of this journal: “Planetary Pioneers”. I hesitated , but decided to try. One of the reasons for my doubts was my primitive English, so I owe the reader an apology for this in advance.
openaire +2 more sources
Abstract In June 1999, Dr. Regis Courtin, Associate Editor of PSS, suggested that I write an article for the new section of this journal: “Planetary Pioneers”. I hesitated , but decided to try. One of the reasons for my doubts was my primitive English, so I owe the reader an apology for this in advance.
openaire +2 more sources
Nonlinear Energy Sink for Whole-Spacecraft Vibration Reduction
, 2017A nonlinear energy sink (NES) approach is proposed for whole-spacecraft vibration reduction. Frequency sweeping tests are conducted on a scaled whole-spacecraft structure without or with a NES attached.
Yang Kai +5 more
semanticscholar +1 more source
SIMULATION, 1963
Computer simulation of electro/mechanical systems has become so important in our world of technical complexity that to many of us the very word "Simulation" has come to suggest first---if not exclusively---just that; the computer simulation of complex physical systems.
openaire +3 more sources
Computer simulation of electro/mechanical systems has become so important in our world of technical complexity that to many of us the very word "Simulation" has come to suggest first---if not exclusively---just that; the computer simulation of complex physical systems.
openaire +3 more sources
1992
Abstract This chapter suggests that nationality be conferred on space objects, as in the case of ships and aircraft, in order to remove some of the present anomalies. Nationality would denote that the national State enjoys quasi-territorial jurisdiction, including quasi-territorial jurisaction, over any space object bearing its ...
openaire +1 more source
Abstract This chapter suggests that nationality be conferred on space objects, as in the case of ships and aircraft, in order to remove some of the present anomalies. Nationality would denote that the national State enjoys quasi-territorial jurisdiction, including quasi-territorial jurisaction, over any space object bearing its ...
openaire +1 more source
2011
The number of spacecraft used in identifying CMEs, ICMEs and their characteristics are many, varied and can be confusing. In this chapter, a summary of the spacecraft that made significant contributions to our understanding of CMEs is presented. Each are presented in chronological order or launch date, citing dates of launch and completion, instrument ...
openaire +2 more sources
The number of spacecraft used in identifying CMEs, ICMEs and their characteristics are many, varied and can be confusing. In this chapter, a summary of the spacecraft that made significant contributions to our understanding of CMEs is presented. Each are presented in chronological order or launch date, citing dates of launch and completion, instrument ...
openaire +2 more sources
On-orbit service (OOS) of spacecraft: A review of engineering developments
Progress in Aerospace Sciences, 2019Wei-Jie Li +11 more
semanticscholar +1 more source
A test of general relativity using radio links with the Cassini spacecraft
Nature, 2003B. Bertotti, L. Iess, P. Tortora
semanticscholar +1 more source
2011
Vega 1 and Vega 2 (contraction of Venus and Halley in Russian) were two identical spacecraft designed by the USSR in cooperation with European countries to investigate Venus and Comet Halley. Launched from Baikonur by Proton rockets, respectively, on 15 and 21 December 1984, they released modules into Venus’s atmosphere and then flew through Halley’s ...
openaire +6 more sources
Vega 1 and Vega 2 (contraction of Venus and Halley in Russian) were two identical spacecraft designed by the USSR in cooperation with European countries to investigate Venus and Comet Halley. Launched from Baikonur by Proton rockets, respectively, on 15 and 21 December 1984, they released modules into Venus’s atmosphere and then flew through Halley’s ...
openaire +6 more sources
Fixed-Time Attitude Control for Rigid Spacecraft With Actuator Saturation and Faults
IEEE Transactions on Control Systems Technology, 2016Boyan Jiang, Q. Hu, M. Friswell
semanticscholar +1 more source