Results 121 to 130 of about 13,168,725 (351)
Measurement of local convective heat transfer coefficients from a smooth and roughened NACA-0012 airfoil: Flight test data [PDF]
Wind tunnels typically have higher free stream turbulence levels than are found in flight. Turbulence intensity was measured to be 0.5 percent in the NASA Lewis Icing Research Tunnel (IRT) with the cloud making sprays off and around 2 percent with cloud ...
Dewitt, Kenneth J. +3 more
core +1 more source
Four-Letter Word Network Update [PDF]
, 1991 A word network is a set of words of a given length in which any two words differing by only one letter in a single position (such as aunt and runt, or hire and hare) are connected by a line.
Gordon, Leonard J.
core +1 more source
Pulsed Electrolysis Prevents Sulfur Poisoning for Sustained Sulfide Valorization
Advanced Materials, EarlyView.Integrating pulsed electrolysis with Sc‐doped NiFe‐LDH enables sustainable sulfide valorization, achieving >500 h stability, 99.8% efficiency. Moreover, this technology produces high‐purity sulfur and sodium formate, boosting profit by 121% to $1,294.7 per tonne of hydrogen.
Zhiyan Hou +5 more
wiley +1 more source
Advanced Materials, EarlyView.This review traces the evolution of lithium‐ion battery separators from passive barriers to multifunctional components central to cell safety and performance. Polymer‐ceramic hybrids, nanofiber architectures, and bio‐derived membranes deliver ionic conductivities above 3 mS cm−1, thermal stability beyond 200 °C, and effective suppression of lithium ...
Karthik Vishweswariah +5 more
wiley +1 more source
Frustrated Lewis pairs on nanoparticles for colloidal catalysis: dream or reality?
Comptes Rendus. ChimieCatalysis by the colloidal suspension of nanoparticles has attracted considerable attention in recent years as it may combine interesting features: (i) the possibility of using inorganic catalysts, such as those of transition metal nanoparticles; (ii ...
Carenco, Sophie
doaj +1 more source
Manipulating the Lewis antigen specificity of the cholesterol-dependent cytolysin lectinolysin
Frontiers in Immunology, 2012 The cholesterol-dependent cytolysins (CDCs) attack cells by punching large holes in their membranes. Lectinolysin from Streptococcus mitis is unique among CDCs due to the presence of an N-terminal lectin domain that enhances the pore-forming activity of ...
Sara eLawrence +8 more
doaj +1 more source
A Scalable Perovskite Platform With Multi‐State Photoresponsivity for In‐Sensor Saliency Detection
Advanced Materials, EarlyView.A scalable in‐sensor computing platform (32 × 32 array) with ultra‐low variability is developed by incorporating ferroelectric copolymers into halide perovskite thin films. These devices achieve 1000 programmable photoresponsivity states and high thermal reliability.
Xuechao Xing +10 more
wiley +1 more source
On the Onsetof Thermal Instability in a Low Prandtl Number Nanofluid Layer in a Porous Medium
Journal of Applied Fluid Mechanics, 2015 Thermal instability in a low Prandtl number nanofluid in a porous medium is investigated by using Galerkin weighted residuals method for free-free boundaries. For porous medium, Brinkman-Darcy modelis applied.
Ramesh Chand, G. C. Rana
doaj
Composition Restoration Enables Recycling of Mixed‐Cation, Mixed‐Halide Perovskites for Solar Cells
Advanced Materials, EarlyView.Compositional drift during processing prevents the direct recycling of mixed‐cation, mixed‐halide perovskites. This work introduces a framework to quantitatively audit and restore recovered materials, enabling closed‐loop recycling with efficiencies comparable to virgin perovskites.
Zhenni Wu +12 more
wiley +1 more source
Ain Shams Engineering JournalHyrdo-thermal performance study in enclosures or cavities is a very promising field of study for industrial components design and implementation. Previous studies have investigated various shapes and conditions, but there is a significant research gap in
Afraz Hussain Majeed +5 more
doaj +1 more source