Results 61 to 70 of about 133,268 (309)

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Ramjet Nozzle Analysis for Transport Aircraft Configuration for Sustained Hypersonic Flight

open access: yesApplied Sciences, 2018
For the past several decades, research dealing with hypersonic flight regimes has been restricted mainly to military applications. Hypersonic transportation could be a possible and affordable solution to travel in the medium term and there is renewed ...
Raman Baidya   +2 more
doaj   +1 more source

Jet Propulsion Laboratory Report SPS-37-33, Vol. IV

open access: yes, 1965
Bimonthly report presenting a review of engineering and scientific work performed, or managed by the Jet Propulsion Laboratory (JPL) for the National Aeronautics and Space Administration during a two-month period. This volume presents material supporting
Jet Propulsion Laboratory (U.S.)
core  

A Dislocation Perspective on Strength and Toughness in Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Detonation Waves on Enhancing Aerospace Propulsion Systems Performances: A Review

open access: yesAerospace
Detonation-based combustion has re-emerged as a promising pathway for enhancing the efficiency and compactness of future aerospace propulsion systems, motivated by the intrinsic pressure-gain characteristics of detonative heat release.
Bogdan-Cătălin Năvligu   +3 more
doaj   +1 more source

Jet Propulsion Laboratory Report SPS-37-44, Vol. IV

open access: yes, 1967
Bimonthly report presenting a review of engineering and scientific work performed, or managed by the Jet Propulsion Laboratory (JPL) for the National Aeronautics and Space Administration during a two-month period. This volume presents material supporting
Jet Propulsion Laboratory (U.S.)
core  

Design and Analysis of Compression–Torsion Coupling Metamaterials Using the Golden Section Method

open access: yesAdvanced Engineering Materials, EarlyView.
A novel compression–torsion metamaterial is engineered using inclined rods and symmetry breaking. To optimize its torsional performance, the golden section method is employed. The mechanical response of the metamaterial is validated through both numerical analysis and experimental validation.
Amirhossein Hassani, Sara Bagherifard
wiley   +1 more source

Jet Propulsion Laboratory Technical Report 32-1265

open access: yes, 1969
Report documenting activities carried out under the cognizance of the Surveyor Project, managed by the Jet Propulsion Laboratory for the National Aeronautics and Space Administration.
Jet Propulsion Laboratory (U.S.)
core   +1 more source

Future Highly Efficient Engines with Solid Oxide Fuel Cell–Gas Turbine Coupling: System Modeling Study and Comparison of Directly and Indirectly Coupled SOFC–GT Systems

open access: yesAerospace
This study investigates hybridization of a solid oxide fuel cell with a gas turbine (SOFC–GT) for application in an ATR 72 regional aircraft. Several challenges hinder its viability, including the low gravimetric power density of SOFC stacks and ...
Pascal Köhler   +4 more
doaj   +1 more source

Jet Propulsion Laboratory Report SPS-37-52, V. 3

open access: yes, 1968
Bimonthly report presenting a review of engineering and scientific work performed, or managed by the Jet Propulsion Laboratory (JPL) for the National Aeronautics and Space Administration during a two-month period (p. iii).
Jet Propulsion Laboratory (U.S.)
core  

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