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Yevgeni Gutnik and Morel Groper
Precise close range underwater electromagnetic navigation and docking.
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Jacopo Guadagnini, Gabriele De Zaiacomo and Michèle Lavagna
This paper focuses on the mission analysis of the return trajectory of a Vertical Landing Reusable Launch Vehicle, both for Return-to-Launch-Site (RTLS) and DownRange Landing (DRL) recovery strategies. The main objective is to assess the mission performa...
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Jiwei Tang, Shumin Pu, Peixi Yu, Weicheng Xie, Yunfei Li and Binxing Hu
A comprehensive simulation model is established to predict the trajectory of a high-altitude zero-pressure balloon flight system with no parachute that is required to carry the load floating at the designated altitude for several hours or less. A series ...
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Egidio D?Amato, Immacolata Notaro, Giulia Panico, Luciano Blasi, Massimiliano Mattei and Alessia Nocerino
In the last decade, the increasing use of NanoSats and CubeSats has made the re-entry capsule an emerging research field needing updates in configuration and technology. In particular, the door to advancements in terms of efficiency and re-usability has ...
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Hongqiang Sun and Shuguang Zhang
Security enhancement and cost reduction have become crucial goals for second-generation reusable launch vehicles (RLV). The thruster is an important actuator for an RLV, and its control normally requires a valve capable of high-frequency operation, which...
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Huadong Li, Yiliang Liu, Daochun Li, Dawei Bie and Zi Kan
The marsupial unmanned aircraft system (UAS) consists of a large parent unmanned aerial vehicle (UAV) and multiple small children UAVs that can be launched and recovered in the air. The employment of marsupial UAS can expand the mission range of small UA...
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Stefano Piacquadio, Dominik Pridöhl, Nils Henkel, Rasmus Bergström, Alessandro Zamprotta, Athanasios Dafnis and Kai-Uwe Schröder
Economic viability of small launch vehicles, i.e., microlaunchers, is impaired by several factors, one of which is a higher dry to wet mass ratio as compared to conventional size launchers. Although reusability may reduce launch cost, it can drive dry an...
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Pennan Chinnasamy, Basant Maheshwari and Sanmugam Prathapar
Groundwater management practices need to take hydrogeology, the agro-climate and demand for groundwater into account. Since agroclimatic zones have already been demarcated by the Government of India, it would aid policy makers to understand the status of...
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Arlindo Leal Boica,Leandro Henrique Mendonça de Oliveira,
ResumoAtualmente a descrição de recursos eletrônicos como vídeos, áudios, imagens e textos são feitos por meio de metadados, que provêem informações sobre seu conteúdo e relacionamentos. O padrão Dublin Core e o RDF são usados para descrever esses recurs...
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