Results 51 to 60 of about 722,005 (275)

Experimental Study of a Hypergolically Ignited Liquid Bipropellant Rotating Detonation Rocket Engine

, 2020
A liquid bipropellant rotating detonation rocket engine was successfully test fired. The 6.5-in.-diam engine operates on a mixture of rocket-grade hydrogen peroxide and triglyme. Ignition is accomplished hypergolically, with the addition of a promoter to
Kan, Brandon, Anderson, Wesly S., Hartsfield, Carl R., Heister, Stephen D.   +3 more
core   +1 more source

Early Assessment of Asymmetric Vortex Small Rotating Detonation Engine

, 2021
Rotating Detonation Engine (RDE) has all the advantages including high-efficiency and high thrust density without compression stages for the future generation engine.
M. A. Mazlan, M. A. Wahid, A. Dairobi G, Mazlan, M. A., M. H. Azeman, Wahid, M. A., Dairobi G., A., Azeman, M. H.   +7 more
core   +1 more source

Selective Laser Sintering and Graphitization for Mono‐Matrix Unibody Fabrication of Integrated Stereo‐Circuit and Stereo‐Fluidic Wearable Electronics

Advanced Materials, EarlyView.
A novel selective laser sintering and graphitization (SLSG) 3D printing technology enables unibody fabrication of compacted insulating structures and conductive circuits in fluidic‐integrated wearable electronics through adaptive photonic modulation.
Li Zhang, Wing Cheung Mak
wiley   +1 more source

Performance of a Rotating Detonation Rocket Engine with Various Convergent Nozzles and Chamber Lengths

Energies, 2021
A rotating detonation rocket engine (RDRE) with various convergent nozzles and chamber lengths is investigated. Three hundred hot-fire tests are performed using methane and oxygen ranging from equivalence ratio equaling 0.5–2.5 and total propellant flow ...
John W. Bennewitz, Blaine R. Bigler, Mathias C. Ross, Stephen A. Danczyk, William A. Hargus, Richard D. Smith   +5 more
doaj   +1 more source

A Theoretical Review of Rotating Detonation Engines

, 2021
Rotating detonation engines are a novel device for generating thrust from combustion, in a highly efficient, yet mechanically simple form. This chapter presents a detailed literature review of rotating detonation engines. Particular focus is placed on the theoretical aspects and the fundamental operating principles of these engines.
J. Shaw, I, A.C. Kildare, J, J. Evans, M, Chinnici, A, A.M. Sparks, C, N.H. Rubaiyat, S, C. Chin, R, R. Medwell, P   +7 more
openaire   +3 more sources

Thermoplastic Dielectric Coatings for Flexible Electrodynamic Dust Shields: Structural and Functional Performance

Advanced Materials Interfaces, EarlyView.
Thermoplastic attachment is introduced as a scalable surface coating strategy to improve the durability and dielectric reliability of flexible electrodynamic dust shields. By embedding chemically modified reduced graphene oxide (CMrGO) electrodes within thermoplastic laminates, mechanical degradation, abrasion damage, and vacuum‐induced electrical ...
Ide E. Onal, Emily A. Ryan, Luca Scifoni, Thomas M. Orlando, Álvaro Romero‐Calvo, Julie S. Linsey, Meisha L. Shofner   +6 more
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

TacScope: A Miniaturized Vision‐Based Tactile Sensor for Surgical Applications

Advanced Robotics Research, EarlyView.
TacScope is a compact, vision‐based tactile sensor designed for robot‐assisted surgery. By leveraging a curved elastomer surface with pressure‐sensitive particle redistribution, it captures high‐resolution 3D tactile feedback. TacScope enables accurate tumor detection and shape classification beneath soft tissue phantoms, offering a scalable, low‐cost ...
Md Rakibul Islam Prince, Sheeraz Athar, Pokuang Zhou, Yu She   +3 more
wiley   +1 more source

Influence of Gas Species on Combined Gas-Liquid Jets

气体物理, 2023
The excellent atomization of the fuel in the air-breathing rotating detonation engine is extremely important to the detonation combustion. The gas-liquid combined transverse jet is one of the vital fuel injection technologies. Numerical methods were used
Cheng-long YAN, Jia-feng ZHAO, Chen SHU, Wan-yun LI, Wei LIN   +4 more
doaj   +1 more source

A Numerical and Analytical Study of Detonation Diffraction [PDF]

, 2003
An investigation of detonation diffraction through an abrupt area change has been carried out via two-dimensional, parallel simulations. The existence of critical conditions for successful diffraction is closely related to the occurrence of localized re ...
Arienti, Marco
core   +1 more source