Results 111 to 120 of about 4,526 (269)

The hard start phenomena in hypergolic engines. Volume 1: Bibliography [PDF]

open access: yes
A bibliography of reports pertaining to the hard start phenomenon in attitude control rocket engines on Apollo spacecraft is presented. Some of the subjects discussed are; (1) combustion of hydrazine, (2) one dimensional theory of liquid fuel rocket ...
Miron, Y., Perlee, H. E.
core   +1 more source

Pulse detonation engines and components thereof [PDF]

open access: yes, 2009
A pulse detonation engine comprises a primary air inlet; a primary air plenum located in fluid communication with the primary air inlet; a secondary air inlet; a secondary air plenum located in fluid communication with the secondary air inlet, wherein ...
Dean, Anthony John   +3 more
core   +1 more source

Maneuverable Multilegged Locomotion through Anisotropically Arranged Soft Backbones in a Single‐Actuator Modular Miniature Robot

open access: yesAdvanced Intelligent Systems, EarlyView.
A modular eight‐legged robot exploits anisotropically oriented soft I‐beam backbones to transmit vibration from a single unbalanced‐mass actuator, producing frequency‐dependent multimodal gaits. A pseudo‐rigid‐body model enables high‐fidelity MuJoCo simulation, while Bayesian parameter identification and reinforcement learning yield robust control ...
Yiğit Yaman   +4 more
wiley   +1 more source

Impact of an Exhaust Throat on Semi-Idealized Rotating Detonation Engine Performance [PDF]

open access: yes
A computational fluid dynamic (CFD) model of a rotating detonation engine (RDE) is used to examine the impact of an exhaust throat (i.e., a constriction) on performance.
Paxson, Daniel E.
core   +1 more source

Research Progress on Halide Solid‐State Electrolytes: Synthesis, Mechanism, and Modification

open access: yesCarbon Energy, EarlyView.
This review comprehensively summarizes the research progress on halide solid‐state electrolytes, including their classifications, synthesis methods, ion conduction mechanisms, and modification strategies. It also proposes effective modification strategies to address critical issues, such as air stability and interface compatibility.
Weifeng Shen   +20 more
wiley   +1 more source

Continuous Detonation Combustor Operating on a Methane–Oxygen Mixture: Test Fires, Thrust Performance, and Thermal State

open access: yesAerospace
Test fires of a rotating detonation engine (RDE) annular combustor operating on a methane–oxygen mixture were conducted. Compared to the original RDE combustor previously tested, it was modified in terms of changing the layout of the water cooling system,
Sergey M. Frolov   +3 more
doaj   +1 more source

Stabilized detonation for hypersonic propulsion. [PDF]

open access: yesProc Natl Acad Sci U S A, 2021
Rosato DA   +5 more
europepmc   +1 more source

Integrated and closed‐loop biorefinery strategies for efficient waste valorization and biofuel production

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Advancements in biofuel production technologies are essential for reducing global dependence on fossil fuels and addressing their overexploitation. Many valuable components of biomass, such as cellulose, hemicellulose, and lignin, remain underused in traditional biorefineries, which typically rely on a single feedstock to produce a primary ...
Marcos Paulo Patta Granado   +5 more
wiley   +1 more source

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