Results 11 to 20 of about 1,322,842 (239)

A Study of Rocket Exhaust Particles [PDF]

, 1996
The exhaust -plumes generated by rocket motors are of significant military importance for missile detection, recognition and communication due to their electromagnetic emission and propagation properties. The plume is a high temperature, high velocity
Dennis, C. W.
core   +7 more sources

A Computational Tool for the Design of Hybrid Rockets [PDF]

Aerotecnica Missili & Spazio, 2021
AbstractA computational tool able to perform a fast analysis of hybrid rocket engines is presented, describing briefly the mathematical and physical models used. Validation of the code is also shown: 16 different static firing tests available in the open literature are used to compare measured operational parameters such as chamber pressure, thrust ...
Zolla P. M., Migliorino M. T., Bianchi D., Nasuti F., Pellegrini R. C., Cavallini E.   +5 more
openaire   +3 more sources

Sublimation of ice particles from rocket exhausts in the upper atmosphere [PDF]

, 2003
The process of sublimation of ice particles from a rocket exhaust in the upper atmosphere is examined. Heating by solar radiation and losses of energy by means thermal radiation and sublimation are taken into account in the thermal balance of the ice ...
Kosch, Mike J., Platov, Y. V.
core   +4 more sources

Advances in Hybrid Rocket Technology and Related Analysis Methodologies [PDF]

, 2020
The book is an amazing collection of technical papers dealing with hybrid rockets. Once perceived as a niche technology, for about a decade, hybrid rockets have enjoyed renewed interest from both the propulsion technical community and industry.

core   +1 more source

Beyond Traditional Phenolics: Disulfide Bonds for Performance Enhancement of Aerospace Ablation-Resistant Materials from Processing to Recycling. [PDF]

Adv Sci (Weinh)
The dynamic disulfide bonds facilitated the development of high‐performance aerospace ablation‐resistant materials. At moderate temperature, the dissociation and recombination of disulfide bonds ensured excellent processability, mechanical properties, and recycling ability of phenolic resin; at high temperature, cleavage of disulfide bonds produced ...
Li Y, Hu B, Xing X, Yang H, Zhang Z, Bian C, Bai R, Yue L, Zhang C, Jing X.   +9 more
europepmc   +2 more sources

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, Yu‐Chia Su, Yee‐Ern Or, Chin‐Fu Cheng, John T. Kung   +4 more
wiley   +1 more source

Robust multi-disciplinary design and optimisation of a reusable launch vehicle [PDF]

, 2014
For various technical reasons, no fully reusable launch vehicle has ever been successfully constructed or operated. Nonetheless, a range of reusable hypersonic vehicles is currently being considered as a viable alternative to the expensive but more ...
Edmondo Minisci, Fabrizio Pescetelli, Richard E. Brown, Minisci, Edmondo, Wuilbercq, Romain, Mogavero, Alessandro, Romain Wuilbercq, Pescetelli, Fabrizio, Brown, Richard, Alessandro Mogavero   +9 more
core   +4 more sources

COMBUSTION PROCESSES IN HYBRID ROCKETS

International Journal of Energetic Materials and Chemical Propulsion, 2019
This paper presents the latest results achieved at the Space Propulsion Laboratory of Politecnico di Milano in the area of hybrid propulsion. Focus is put on four specific research topics currently under investigation and strongly linked: (1) solid fuel formulations development; (2) investigation of the burning behavior of liquefying fuel formulations ...
Paravan, Christian, Galfetti, Luciano, Bisin, Riccardo, Piscaglia, Federico   +3 more
openaire   +1 more source

Solid-Fuel Regression Rate for Standard-Flow Hybrid Rocket Motors

Journal of Thermal Science and Technology, 2012
Marxman's diffusion-limited analysis of hybrid rocket combustion has been often used to investigate various combustion problems in hybrid rocket motors.
Takakazu MORITA, Saburo YUASA, Shigeru YAMAGUCHI, Toru SHIMADA   +3 more
doaj   +1 more source

Hybrid Rocket Engine Design Optimization at Politecnico di Torino: A Review

Aerospace, 2021
Optimization of Hybrid Rocket Engines at Politecnico di Torino began in the 1990s. A comprehensive review of the related research activities carried out in the last three decades is here presented.
Lorenzo Casalino, Filippo Masseni, Dario Pastrone   +2 more
doaj   +1 more source