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Game theoretic analysis of space debris removal dilemma

The increase of space debris means that active space debris removal is becoming more relevant. An active debris removal mission would have a positive effect (or risk reduction) for all satellites in the same orbital band. This leads to a dilemma: each space agency has an incentive to delay its actions and wait for others to respond. We model this scenario as a non-cooperative game between self-interested agents in which the agents are space agencies.

UK

15R01

University of Liverpool
Reliable TT&C during superior solar conjunctions

The purpose of this study was to define the a communication subsystem architecture (including both ground and space segments, as well as operational methods) that allows robust RF TT&C links during superior solar conjunction phases. The defined architecture shall ensure robust and reliable links in scintillation regimes (i.e. at low SEP angles) where TT&C links are nowadays degraded, leading to occasional link interruptions. Similarly, the defined architecture shall ensure that at even higher scintillation regimes (i.e.

Italy

13-028-a

University of Bologna
High efficiency 150 K Joule-Thomson cryocooler with an ejector

There is an increasing need for ever smaller pulse-tube coolers. These coolers have the characteristics necessary for space applications because the absence of moving parts in the cold finger makes them extremely reliable and any induced vibrations are typically smaller and easier to control.

But these types of cooler are less efficient and have a lower power density. Typically, this is resolved by increasing their drive frequency, to reduce amplitudes and displacements, which means that the coolers are smaller

Netherlands

TRP-NP-4000114493

UNIVERSITY OF TWENTE
Development of graphene based THz and X-ray radiation detectors - parallel 2

Previous research has already demonstrated that graphene field effect transistors can be operated at incredibly high bandwidths, demonstrating 25+GHz with a theoretical limit of up to 500GHz for visible photodetection. Ultrafast photodetection has also been demonstrated on the 10s of femtosecond scale via the photothermoelectric effect for visible photodetection.

France

13-045-b

University of Leicester
Impact Risk in LEO as a result of the Increase of Nano and Micro-Satellites

Low Earth orbit (LEO) is experiencing a renaissance thanks to increasing commercialisation of space. The opportunities provided by small satellites are enabling diminutive companies and startups, in particular, to make a significant impact on the space economy. Small satellites have played a vital role in this revolution and they have a unique ability to bring around new products and services at short timescales and for relatively low-cost.

UK

15/706

University of Southampton
ASSESSMENT OF PHYSICAL EXERCISE BENEFITS ON BRAIN HEALTH FOR LONG-DURATION SPACEFLIGHT

Poor sleep on the ISS remains one of the major factors, which affect negatively the performance and psychological resilience of astronauts. The development of novel effective countermeasures for sleep loss, performance decrements and psychological deficits during space missions is needed.

UK

15R02

University of Oxford
Coastal Ocean Process Caractherisation in Indonesia

This Pilot Study aimed at improving the information on the state of the Indonesian marine environment that is gained by combining satellite data, maps of particularly vulnerable coastal areas and model simulations.

Germany

14-A-2-b

University of Hamburg
Crowd4Sat: Crowdsourcing for Observations from Satellites

The Crowd4Sat project explored a range of crowdsourcing methodologies and technologies, from opportunistic sourcing ­ the ability to extract relevant data from unrelated activities ­ to participatory sourcing, where citizens and authorities explicitly participate in the data collection. The crowdsourced data and information collected ranged from real time pollution data from cars (via the The Floow's technologies who have hundreds of thousands of users on four continents), to crowdsourced geotagged images from sites like Panoramio, Flicker and Twitter, to social media messages (e.g.

UK

13-038-b

University of Sheffield

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