Results 41 to 50 of about 14,137 (299)
Air to ground rocket dispersion minimization [PDF]
Scientific Technical Review, 2018 Dispersion of the impact points of the unguided rockets is a consequence of disturbances, such as thrust misalignments, rocket asymmetry, manufactoring inacuracy, etc.
Mandić Slobodan +3 more
doaj
Studia Historiae Scientiarum, 2022 The interregnum between the death of Galileo and the publication of Newton’s Principia produced great advances in military science and technology.
Paul Wlodkowski
doaj +1 more source
Further Analysis on the Mystery of the Surveyor III Dust Deposits [PDF]
arXiv, 2023 The Apollo 12 lunar module (LM) landing near the Surveyor III spacecraft at the end of 1969 has remained the primary experimental verification of the predicted physics of plume ejecta effects from a rocket engine interacting with the surface of the moon. This was made possible by the return of the Surveyor III camera housing by the Apollo 12 astronauts,
arxiv
Advanced Science, EarlyView.This research presents a novel optimization method for the inverse design of flexible mechanical metamaterials, enhancing traditional strategies by evaluating deformation in subregions. Combining simulated annealing with a genetic algorithm, it improves design efficiency and enables customizable deformation paths.
Xueqing Cao +4 more
wiley +1 more source
Lagrangian Trajectory Modeling of Lunar Dust Particles [PDF]
arXiv, 2023 A mathematical model and software implementation developed to predict trajectories of single lunar dust particles acted on by a high velocity gas flow is discussed. The model uses output from a computation fluid dynamics (CFD) or direct simulation Monte Carlo (DSMC) simulation of a rocket nozzle hot gas jet.
arxiv
Rocket thrust chamber Patent [PDF]
, 1965 Large area-ratio nozzles for rocket motor thrust ...
Baehr, E. F.
core +1 more source
Ti3C2Tx MXene‐Zirconium Diboride Based Ultra‐High Temperature Ceramics
Advanced Science, EarlyView.This study demonstrates the effectiveness of Ti3C2Tx MXenes as additives in ultra‐high‐temperature ceramics (ZrB₂), enhancing densification, reducing oxygen content, and improving mechanical properties. Through surfactant‐free electrostatic self‐assembly and spark plasma sintering, MXenes enabled the formation of a core–shell microstructure, resulting ...
Srinivasa Kartik Nemani +11 more
wiley +1 more source
Rocket nozzle test method Patent [PDF]
, 1970 Method for testing rocket nozzles at high tensile stress ...
Estes, E. G.
core +1 more source
Solvent‐free Electrode Fabrication for Next‐generation Batteries: Inception or an Endgame?
Chemistry – A European Journal, Accepted Article.Solvent‐free electrode fabrication (SEF) is a revolutionary advancement in the field of battery manufacturing, providing a compelling, solvent‐free alternative to conventional slurry‐based processing. SEF offers significant benefits, including reduced energy consumption resulting from the elimination of toxic solvents, solvent recovery steps, a lower ...
Milan K. Sadan, Anupriya K Haridas
wiley +1 more source
Авіаційно-космічна техніка та технологія, 2023 The subject of this study is dual-bell supersonic nozzles of liquid rocket engines. The goal is to design a dual-bell supersonic nozzle that will provide maximum thrust for a liquid rocket engine in the first stage of a launch vehicle by solving an ...
Ivan Dubrovskyi
doaj +1 more source