Results 121 to 130 of about 67,013 (310)
Development Status of the L75: A Brazilian Liquid Propellant Rocket Engine
Journal of Aerospace Technology and Management, 2014 This paper provides an overview of the design and development process of the L75 Liquid Propellant Rocket Engine (LPRE). Being developed at Institute of Aeronautics and Space (IAE), it is the first Brazilian open-cycle liquid rocket engine pressurized by
Daniel Soares de Almeida +1 more
doaj
Cryogenic gear technology for an orbital transfer vehicle engine and tester design [PDF]
Technology available for gears used in advanced Orbital Transfer Vehicle rocket engines and the design of a cryogenic adapted tester used for evaluating advanced gears are presented.
Calandra, M., Duncan, G.
core +1 more source
steel research international, EarlyView.The high‐strain‐rate behavior of resistance spot‐welded DP800–DP1000 joints is investigated. Results show that microstructural gradients across BM–HAZ–FZ govern hardness, strain rate sensitivity, and failure modes. While strength increases with strain rate, energy absorption is controlled by ductility, with DP800–DP800 joints showing superior ...
Pankaj Shrivastava, Velaphi Msomi
wiley +1 more source
Linear quadratic servo control of a reusable rocket engine [PDF]
A design method for a servo compensator is developed in the frequency domain using singular values. The method is applied to a reusable rocket engine.
Musgrave, Jeffrey L.
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Embedded Interactions and Selective Disclosure: Network Effects on Conversations aboard Skylab
Symbolic Interaction, EarlyView.How do absent others influence our interactions? We argue in this paper that interactions are embedded within networks formed by chains of specific relationships between known third parties. The anticipation of future interactions with external others conditions our interpretation of the current situation and affects our behavior in the interaction. We
Michael Schultz +2 more
wiley +1 more source
Embedded expert system for space shuttle main engine maintenance [PDF]
The SPARTA Embedded Expert System (SEES) is an intelligent health monitoring system that directs analysis by placing confidence factors on possible engine status and then recommends a course of action to an engineer or engine controller.
Homsley, T. +5 more
core +1 more source
Plastic tubing protects flexible copper hose [PDF]
, 1966 Flexible copper purge and coolant hoses is covered with a high-temperature shrinkable plastic for protection against severe vibration during rocket engine tests.
Mellgren, B. E.
core +1 more source
Space biomedicine‐oriented bioink and biomimetic blood‒brain barrier
VIEW, EarlyView.Bioinks and bioprinting play a pivotal role in the successful delivery of cell models and the fabrication of tissue models for space biomedicine research. This study investigated the effects of hypergravity and vibration on two‐dimensional adherent cells and three‐dimensional embedded cells and provided methods for storing hybrid bioink and high ...
Ranran Yan +3 more
wiley +1 more source
The problem of combustion instability in liquid rocket engines
Challenges and Issues of Modern ScienceThe purpose of this work is to carry out an overview on combustion instability in liquid propellant rocket engines, its classification, the main principles of occurrence as well as ways to prevent the phenomena while designing of the prospective engine.
Samir Vekilov +2 more
doaj
High Voltage, EarlyView.ABSTRACT Data from five rocket‐triggered lightning flashes are adopted to analyse the correlated transient response of buried cables and lightning channel radiations. These five flashes have the same termination point that is right above the buried cables and involve a total of 32 return strokes.
Mi Zhou +9 more
wiley +1 more source