Superconductors and cryotechnology for future space communication technology-the BOSCH demonstrator experiment

Author(s):  
M. Klauda ◽  
T. Kasser ◽  
C. Neumann ◽  
B. Mayer ◽  
C. Schrempp ◽  
...  
2000 ◽  
Vol 12 (4) ◽  
pp. 394-401 ◽  
Author(s):  
Shinichi Kimura ◽  
◽  
Shigeru Tsuchiya ◽  
Yasufumi Nagai ◽  
Kazuo Nakamura ◽  
...  

Large, precise space antennas are important for space infrastructures. The Communication Research Laboratory (CRL) has developed an assembly-type antenna for future space communication infrastructures and has been studying the techniques that control space robots used to assemble this type of antenna. The first on-board experiments for assembling the developed antenna have been scheduled to take place on Engineering Test Satellite VII (ETS-VII), which was launched in November 1997. The most important concerns in using space robots are safety and reliability. Teleoperation of space robots is very stressful for operators, who work under significant time constraints. This is especially true since space robots cannot be repaired during operation. We tested two teleoperation technologies control techniques designed to reduce the operational load while allowing flexible and dexterous operation during the upcoming ETS-VII experiments. The first is audio feedback. The second is virtual bilateral control. Both techniques were found to significantly improve efficiency and reduce the risks associated with space assembly.


2016 ◽  
Vol 37 (4) ◽  
pp. 250-259 ◽  
Author(s):  
Cara A. Palmer ◽  
Meagan A. Ramsey ◽  
Jennifer N. Morey ◽  
Amy L. Gentzler

Abstract. Research suggests that sharing positive events with others is beneficial for well-being, yet little is known about how positive events are shared with others and who is most likely to share their positive events. The current study expanded on previous research by investigating how positive events are shared and individual differences in how people share these events. Participants (N = 251) reported on their likelihood to share positive events in three ways: capitalizing (sharing with close others), bragging (sharing with someone who may become jealous or upset), and mass-sharing (sharing with many people at once using communication technology) across a range of positive scenarios. Using cluster analysis, five meaningful profiles of sharing patterns emerged. These profiles were associated with gender, Big Five personality traits, narcissism, and empathy. Individuals who tended to brag when they shared their positive events were more likely to be men, reported less agreeableness, less conscientiousness, and less empathy, whereas those who tended to brag and mass-share reported the highest levels of narcissism. These results have important theoretical and practical implications for the growing body of research on sharing positive events.


2012 ◽  
Vol 43 (4) ◽  
pp. 222-231 ◽  
Author(s):  
Nina Hansen ◽  
Tom Postmes ◽  
Nikita van der Vinne ◽  
Wendy van Thiel

This paper studies whether and how information and communication technology (ICT) changes self-construal and cultural values in a developing country. Ethiopian children were given laptops in the context of an ICT for development scheme. We compared children who used laptops (n = 69) with a control group without laptops (n = 76) and a second control group of children whose laptop had broken down (n = 24). Results confirmed that after 1 year of laptop usage, the children’s self-concept had become more independent and children endorsed individualist values more strongly. Interestingly, the impact of laptop usage on cultural values was mediated by self-construal (moderated mediation). Importantly, modernization did not “crowd out” traditional culture: ICT usage was not associated with a reduction in traditional expressions (interdependent self-construal, collectivist values). Theoretical and practical implications are discussed.


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