Results 1 to 10 of about 461 (188)
Experimental investigation of erosion rate of insulation materials using hybrid rockets
FirePhysChem, 2021 Thermal insulation is essential to protect the exposed surface from high-temperature and high heat flux situations. The selection of suitable insulation materials plays a crucial role in determining rocket performance.
Phaninder Reddy Vaka +2 more
doaj +3 more sources
Challenges of Ablatively Cooled Hybrid Rockets for Satellites or Upper Stages
Aerospace, 2021 Ablative-cooled hybrid rockets could potentially combine a similar versatility of a liquid propulsion system with a much simplified architecture. These characteristics make this kind of propulsion attractive, among others, for applications such as ...
Francesco Barato
doaj +3 more sources
Aerospace, 2021 Hybrid rockets are considered a promising future propulsion alternative for specific applications to solid or liquid rockets. In order to raise their technology readiness level, it is important to perform predictive numerical simulations of their ...
Mario Tindaro Migliorino +2 more
doaj +3 more sources
Neural Networks for Estimating Attitude, Line of Sight, and GNSS Ambiguity Through Onboard Sensor Fusion [PDF]
SensorsAccurate estimation of attitude, line of sight (LOS), and carrier-phase ambiguity is essential for the performance of Guidance, Navigation, and Control (GNC) systems operating under highly dynamic and uncertain conditions.
Raul de Celis, Luis Cadarso
doaj +2 more sources
Characterization and manufacturing of a paraffin wax as fuel for hybrid rockets
Propulsion and Power Research, 2018 The hybrid propulsion performed with paraffin waxes exhibits most attractive capabilities compared to solid or liquid engines, e.g., throttleability and re-ignition, alongside higher regression rates compared to the conventional hydroxyl terminated ...
F. Piscitelli +4 more
doaj +3 more sources
Computational algorithm for hybrid rocket motor preliminary design [PDF]
Kafrelsheikh Journal of Information Sciences, 2021 Hybrid rockets present a compromise between solid and liquid rockets. It has a simpler design than liquid rockets and higher performance than solid rockets. It is constructed from an oxidizer tank followed by a solid fuel grain. Therefore, the combustion
Mohamed Sakr
doaj +1 more source
FirePhysChem, 2021 Human spaceflight, space tourism, and the launch of microsatellites are all expected to grow in the future. In fact, with the recent increase of the satellite market, almost 1000 smallsats per year are foreseen to be launched over the next decade. Hybrid
Yash Pal +4 more
doaj +1 more source
Bridging the Technology Gap: Strategies for Hybrid Rocket Engines
Aerospace, 2023 Hybrid rocket propulsion, first demonstrated by the Russian GIRD-09 rocket in 1933, combines liquid oxidizer and solid fuel for thrust generation. Despite numerous advantages, such as enhanced safety, controllability, and potential environmental benefits,
Christopher Glaser +2 more
doaj +1 more source
A short review of challenges and prospects of boron-laden solid fuels for ramjet applications
FirePhysChem, 2023 This short review article explores the advancement, challenges, and prospects of boron-laden solid fuel for ramjet. The energetic aspect of boron combustion is well known, but the complications associated with its efficient combustion persist and must be
Saugata Mandal +3 more
doaj +1 more source
CD8+ T cell memory is sustained in mice by hepatic stellate cells
Hepatology, EarlyView., 2022 HSC role in memory CD8+ T cell maintenance. Abstract Background and Aims Long‐lasting immunological memory is the ultimate goal of vaccination. Homeostatic maintenance of memory CD8+ cytotoxic T cells (MemCD8TCs) is thought to be mediated by IL‐15/IL‐15R heterodimer (15HD)‐expressing myeloid cells.
Yi‐Ting Chen +4 more
wiley +1 more source