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Petri Toivanen, Pekka Janhunen, Jarmo Kivekäs and Meri Mäkelä
A new method of producing robust multi-wire tethers for Coulomb drag applications was developed. The multi-wire structure required for redundancy against the micrometeoroid flux of the space environment is realised through the method of wire twist bondin...
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Farouk Smith and Jieun Bae
This paper presents the design and development of a sub-joule micro-Pulsed Plasma Thruster (µPPT) as a possible low-cost propulsion solution for Pocket-Cubes, used to increase its reliability, capability, and lifetime. It is shown that the µPPT successfu...
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Dillon O?Reilly, Georg Herdrich, Felix Schäfer, Christoph Montag, Simon P. Worden, Peter Meaney and Darren F. Kavanagh
Pulsed plasma thrusters (PPT) have demonstrated enormous potential since the 1960s. One major shortcoming is their low thrust efficiency, typically <30%. Most of these losses are due to joule heating, while some can be attributed to poor efficiency of th...
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Mónica Echeverry-Rendón, Luisa F. Berrio, Sara M. Robledo, Jorge A. Calderón, Juan G. Castaño and Felix Echeverría
Magnesium (Mg) has been explored during the last few decades in the biomedical industry as a biodegradable implant. However, mechanical properties and corrosion resistance are still big concerns for clinical use. Therefore, this study proposes a suitable...
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Roberto Montanari, Alex Lanzutti, Maria Richetta, Javokhir Tursunbaev, Emanuele Vaglio, Alessandra Varone and Claudio Verona
Austenitic stainless steels produced by laser powder bed fusion (L-PBF) are quite interesting materials owing to their specific microstructure consisting of dendrite walls built of dislocations pinned by many nano-oxides that involves significant strengt...
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Jinhyoung Park, Hanchul Cho and Yong-Seok Lee
Energy harvesting, especially for powering low-power internet-of-things (IoT) devices, is gaining attention in recent years. Triboelectric nanogenerators have been studied to improve the output by applying a structure that can concentrate electrons on th...
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Syamsiah Syam, Chun-Wei Chang, Wen-Chien Lan, Keng-Liang Ou, Bai-Hung Huang, Yu-Yeong Lin, Takashi Saito, Hsin-Yu Tsai, Yen-Chun Chuo, Tzu-Sen Yang, Chung-Ming Liu and Ping-Jen Hou
This study aimed to investigate the effect of combining an innovative bioceramic a-calcium sulfate hemihydrate (a-CSH, CaSO4·0.5H2O) bone graft and platelet-rich plasma (PRP) to accelerate bone healing and regeneration in a rabbit model. The bone graft m...
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Lubo? Podlucký, Andrej Vincze, Sona Kovácová, Juraj Chlpík, Jaroslav Kovác and Franti?ek Uherek
In this paper, the analysis of silicon oxynitride (SiON) films, deposited utilizing the plasma enhanced chemical vapor deposition (PECVD) process, for optical waveguides on silicon wafers is presented. The impact of N2O flow rate on various SiON film pro...
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Aiming Bu, Yongfu Zhang, Yan Xiang, Yunjie Yang, Weiwei Chen, Huanwu Cheng and Lu Wang
This manuscript reported the synthesis of Al2O3 coating onto quartz fiber fabric by plasma electrolysis spray for enhanced thermal conductivity and stability. The nano- and micro-sized clusters were partially observed on the coating, while most coating w...
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Oleksandr Paliukh,Petro Kyrychok,Ruslan Trishchuk,Maxym Korobka,Yevhenii Dziadyk
Pág. 80 - 90
An experimentally determined list of the required and sufficient technological operations to produce semi-hard book covers has been proposed, with the calculated contour and structural design, which implies strict tolerances in the deviations from a rect...
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