https://repository.utm.md/handle/5014/20227 Extended Abstracts of the: The 10th IC|ECCO; October 23-26, 2019 Mon, 20 Apr 2026 10:29:25 GMT 2026-04-20T10:29:25Z https://repository.utm.md/handle/5014/6179 Functional safety and reliability of TUMnanoSAT satellite on-board computer software MARTINIUC, Alexei; SECRIERU, Nicolae The TUM National Space Technologies Center team was selected by the Japan Aerospace Agency (JAXA) and the United Nations Office for Outer Space Affairs (UNOOSA) for the fourth round of the KiboCUBE Program for the launch of the TUMnanoSAT nanosatellite from the International Space Station (ISS) in 2020, with the help of the japanese experimental KiboCUBE module. The National Space Technologies Center of TUM projected the family of TUMnanoSAT’s nanosatellites, according to the international CubeSat standard. In the 2019 year, NCST participated in the fourth round of the KiboCUBE Program with the nanosatellite project from the “TUMnanoSAT” family. The harsh space environment with high levels of radiation and large temperature variations (even on low earth orbits) imposes the implementation of measures and techniques to achieve high level of satellite systems reliability over its full lifetime. Abstract Tue, 01 Jan 2019 00:00:00 GMT https://repository.utm.md/handle/5014/6179 2019-01-01T00:00:00Z https://repository.utm.md/handle/5014/5913 Low dose rate effects in bipolar devices during longterm operation space electronic systems PERSHENKOV, Viacheslav; BAKERENKOV, Alexander; FELITSYN, Vladislav; RODIN, Alexander; TELETS, Vitaliy; BELYAKOV, Vladimir; ZHUKOV, Alexander The maintenance of uninterrupted successful operation space system for navigation and investigation of different astronomic objective (planets, universes, nebulas) demands the development of on-board electronic systems which have possibility for long-term working in radiation ionizing space environments. During impact of the long-term radiation the two kinds low dose rate effects were observed: enhanced [1] and reduced [2] degradation of electrical characteristics of bipolar devices at the same total absorbed dose. It denotes as ELDRS (Enhanced Low Dose Rate Sensitivity) and RLDRS (Reduced Low Dose Rate Sensitivity). In given work the physical mechanisms of these low dose rate effects are considered. This kind of investigation can serve as the base for development of the testing methods for input control of bipolar microelectronic devices for on-board electronic system application. Abstract Tue, 01 Jan 2019 00:00:00 GMT https://repository.utm.md/handle/5014/5913 2019-01-01T00:00:00Z https://repository.utm.md/handle/5014/5911 Aerogalnite as a biomimetic electronic nanomaterial for multifunctional applications TIGINYANU, Ion We report on fabrication of three-dimensional architectures based on GaN microtubular structures (the so-called Aerogalnite or Aero-GaN) with nanoscopic thin walls which exhibit dual hydrophobic-hydrophilic behaviour. The micro-tubular structures are shown to self-organize when interacting with water to mimic the formation and functions of a cell membrane. Self-organization processes result in the formation of stretchable and self-healing waterproof rafts with impressive cargo capabilities (cargo up to 500 times heavier than the floating raft [1]). Along with this, we demonstrate self-propelled liquid marbles with exceptional mechanical robustness which may find applications as bioreactors for scalable in vitro cell growth. The physical properties of the new material based on three-dimensional GaN architectures will be presented in the context of its prospects for biomimetic applications in nano/microfluidics, biomedicine, microrobotics, electronics etc. Abstract Tue, 01 Jan 2019 00:00:00 GMT https://repository.utm.md/handle/5014/5911 2019-01-01T00:00:00Z https://repository.utm.md/handle/5014/5909 Leveraging blockchain technology to assure security of SDN AMEEN, Ali Software-defined networking is a new way of managing how computer networks behave, it gives more ability to manage the network nodes, facilitates policies enforcement, provides more speed in applying configurations on network nodes, it has one point of controlling which is laying in the control plane represented by the controller which is the only brain for the network which provides flexibility and single point of administration but, in the same time this situation from a security point of view this could be a single point of failure so, as restriction of the control in the network by the control plane is a good security feature, it could also open new security challenges and here comes our research secure software-defined networks in order to assure the security of computer networks in general. Abstract Tue, 01 Jan 2019 00:00:00 GMT https://repository.utm.md/handle/5014/5909 2019-01-01T00:00:00Z