Results 141 to 150 of about 4,936,435 (388)

Hydrogel Thermostat Inspired by Photoprotective Foliage Using Latent and Radiative Heat Control

open access: yesAdvanced Materials, EarlyView.
Guided by Populus alba foliage, this hydrogel latent‐radiative thermostat (LRT) actively balances latent and radiative heat fluxes. An LRT switches solar reflectance, maintains high mid‐IR emissivity, and reversibly evaporates/regenerates water, while titanium oxide (TiO2) nanoparticles toughen the film.
Se‐Yeon Heo   +15 more
wiley   +1 more source

Reentry heat transfer analysis of the space shuttle orbiter [PDF]

open access: yes
A structural performance and resizing finite element thermal analysis computer program was used in the reentry heat transfer analysis of the space shuttle.
Gong, L., Ko, W. L., Quinn, R. D.
core   +1 more source

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

open access: yesAdvanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska   +10 more
wiley   +1 more source

Preliminary results from an experimental investigation of the initial condition effects on a turbulent shear layer [PDF]

open access: yes
A flow facility to create a plane shear layer from a laminar and a turbulent boundary layer was established. The spread rate parameter for these two conditions was accurately determined.
Foss, J. F.
core   +1 more source

Performance Constraints of All‐Perovskite Tandem Solar Cells in Low‐Intensity, Low‐Temperature Environments

open access: yesAdvanced Materials, EarlyView.
All‐perovskite tandem solar cells are evaluated under low‐intensity and low‐temperature (LILT) conditions relevant to space environments. Distinct loss regimes emerge, where weaker entropic mixing causes halide segragation below ≈240 K going along with a strong current imbalance, while poor electron transport in C60 dominates.
Sercan Ozen   +10 more
wiley   +1 more source

Time dependent backward piping erosion 2D modeling with laminar flow transport equations

open access: gold, 2020
Juan Pablo Aguilar-López   +3 more
openalex   +1 more source

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