Results 81 to 90 of about 60,392 (293)
Directional Liquid Transport Enabled pH‐Responsive Hierarchical Composite for Enhanced Wound Healing
Advanced Healthcare Materials, EarlyView.A hierarchical composite with a gradient architecture transitioning from hydrophobic to hydrophilic layers integrates diode‐like liquid transport, efficient water absorption, breathability, and mechanical robustness. This device enables a multifunctional therapeutic platform with pH‐responsive dual‐drug release, providing synergistic anti‐inflammatory ...
Baolin Wang +5 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.An advanced microneedle patch integrating niobium carbide nanosheets and curcumin is engineered for diabetic wound healing. The system enables dual ROS scavenging and NIR‐enhanced antimicrobial activity, effectively rebalancing the oxidative microenvironment, promoting macrophage repolarization and angiogenesis, and accelerating full‐thickness wound ...
Zhi Zheng +12 more
wiley +1 more source
Passive propellant system [PDF]
The system utilizes a spherical tank structure A separated into two equal volume compartments by a flat bulkhead B. Each compartment has four similar gallery channel legs located in the principal vehicle axes, ensuring that bulk propellant will contact ...
Hess, D. A. +2 more
core +1 more source
, 1978 A case bonded end burning solid propellant rocket motor is described. A propellant with sufficiently low modulus to avoid chamber buckling on cooling from cure and sufficiently high elongation to sustain the stresses induced without cracking is used. The
Marsh, H. E., Jr., Shafer, J. I.
core +1 more source
Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction
Advanced Healthcare Materials, EarlyView.Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang +4 more
wiley +1 more source
Havacılık ve Uzay Teknolojileri Dergisi, 2020 The script in this paper describes the use of propellant for plasma thrusters based on electrostatic accelerator. The generation and control of plasma is essential for the ion thrusters.
Alexander Norbach
doaj
Register of specialized sources for information on selected fuels and oxidizers [PDF]
Thirty-eight (38) organizations are listed and described that catalog and file information in their data systems on fuel and oxidizers. The fuels include hydrogen, methane and hydrazine-type fuels; the oxidizers include oxygen, fluorine, flox, nitrogen ...
Ludtke, P. R.
core +1 more source
Casting propellant in rocket engine [PDF]
, 1976 A method is described for casting a solid propellant in the casing of a rocket engine having a continuous wall with a single opening which is formed by leaves of a material which melt at a temperature of the propellant and with curved edges concentric to
Froehling, S. C., Roach, J. E.
core +1 more source
Heat removal system for shutdown in nuclear thermal rockets and advanced concepts [PDF]
, 2017 © 2016 by the American Institute of Aeronautics and Astronautics, Inc.It is well-known that a nuclear thermal rocket (NTR) cannot be abruptly shut down. After a power manoeuver, the reactor has contaminated itself with fission products and the decay heat
Arias Montenegro, Francisco Javier +1 more
core +2 more sources
Unveiling the Role of Curvature in Carbon for Improved Energy Release of Ammonium Perchlorate
Advanced Materials, EarlyView.High‐curvature carbon materials identified via machine learning and simulation can enhance the heat release and combustion performance of ammonium perchlorate. ABSTRACT The catalytic role of carbon curvature in the thermal decomposition of ammonium perchlorate (AP) remains largely unexplored. To address this gap, this study employs machine learning and
Dan Liu +8 more
wiley +1 more source