Results 71 to 80 of about 9,673 (305)
Recent Advances in Synthesis and Properties of Nitrated-Pyrazoles Based Energetic Compounds
Molecules, 2020 Nitrated-pyrazole-based energetic compounds have attracted wide publicity in the field of energetic materials (EMs) due to their high heat of formation, high density, tailored thermal stability, and detonation performance.
Shijie Zhang +6 more
doaj +1 more source
Ignition and combustion of metallized propellants [PDF]
The overall objective is the development of a fundamental understanding of the ignition and combustion of aluminum-based slurry (or gel) propellant droplets using a combination of experiment and analysis.
Turns, Stephen R.
core +1 more source
Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space
Advanced Materials, EarlyView.In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz +17 more
wiley +1 more source
Miniature Soft Robot With Magnetically Reprogrammable Surgical Functions
Advanced Materials, EarlyView.Miniature soft robots have great prospects to revolutionize minimally invasive treatments. Here we present a miniature soft robot, which can be reprogrammed to perform five surgical functionalities with six‐degrees‐of‐freedom motions. This soft robot can prospectively make minimally invasive surgery considerably safer and painless, and enable ...
Chelsea Shan Xian Ng +4 more
wiley +1 more source
The Development of a Next-Generation Latticed Resistojet Thruster for CubeSats
AerospaceCubeSat and small satellite resistojet heat exchanger designs are based on conventional concepts that have been used since the 1960s, being primarily limited to helical or twisted tape heat exchangers.
Daniel Turner, Robert Howie, Phil Bland
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Catalytic ignition of hydrogen and oxygen propellants [PDF]
An experimental program was conducted to evaluate the catalytic ignition of gaseous hydrogen and oxygen propellants. Shell 405 granular catalyst and a monolithic sponge catalyst were tested. Mixture ratio, mass flow rate, propellant temperature, and back
Green, James M., Zurawski, Robert L.
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Advanced Materials, EarlyView.SPARC (spatio‐chimeric, plasma‐based, anisotropic, and shear‐responsive construct) that integrates myogenic and vascular microenvironments within a single construct. The dual‐modulus matrix directs aligned myotube formation and endothelial network development, enabling a vascularized muscle implant that seamlessly anastomoses with host tissue and ...
Su Hyun Jung +6 more
wiley +1 more source
Decomposition of H2O2 on Monolithic MnOx/ZrO2 Catalysts for Aerospace Application
Chemical Engineering Transactions, 2015 Hydrogen peroxide is widely recommended in aerospace field for propulsive applications for the high energy density and for its “green” nature due to low toxicity and low environmental impact in comparison with conventional propellants (N2H4, N2O4 ...
L. Micoli, M. Turco
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High energy-density liquid rocket fuel performance [PDF]
A fuel performance database of liquid hydrocarbons and aluminum-hydrocarbon fuels was compiled using engine parametrics from the Space Transportation Engine Program as a baseline. Propellant performance parameters are introduced. General hydrocarbon fuel
Rapp, Douglas C.
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Orbital Electrowetting: From Continuous Droplet Transport to Programmable Microfluidics
Advanced Materials, EarlyView.This work comprehensively summarizes the mechanisms, recent advances, potential applications, and key challenges of orbital electrowetting. It highlights that integrating orbital electrowetting with conventional electrowetting is required to enable complete digital‐microfluidic workflows while simplifying platform architecture.
Jie Tan +7 more
wiley +1 more source