Results 131 to 140 of about 260,518 (341)
Journal of Combinatorial Theory, Series A, 1996 AbstractWe have determined all exponents of (n, k, L)-systems ofk⩽12 except for essentially two cases, which are related to the Steiner systemsS(11, 5, 4) andS(12, 6, 5). This requires several new constructions. Also some refinements of the previous methods are necessary to get suitable upper bounds.
Peter Frankl +2 more
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Toughness of Confined Auxetic Foams
Advanced Engineering Materials, EarlyView.Auxetic (negative Poisson's ratio) materials offer benefits such as impact mitigation, thermal insulation, vibration damping, and reduced shear strain, although their fracture mechanics are largely unexplored. This study investigates damage initiation and propagation in confined re‐entrant auxetic foams from polyurethane via experimental ...
Adrianos E. F. Athanasiadis +3 more
wiley +1 more source
Industry R&D needs in hydrogen safety
Applications in Energy and Combustion ScienceHydrogen's unique physicochemical and combustion properties make it stand out among fuels as new hydrogen production technologies, means of transportation, and consumers emerge.
Harri Kytömaa +6 more
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Sir Thomas Browne, knight; doctor of physick; anti-cromwellian loyalist; witch-finder; amateur exponent of christian doctrine; conservative opponent of scientific innovation; and iconoclastic critic of the errors of the “learned Vulgar,” with their “authorities” [PDF]
, 1905 John R. Knott
openalex +1 more source
Advanced Functional Materials, EarlyView.In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund +6 more
wiley +1 more source
Obesity PillarsBackground: The fixed-dose extended-release combination of naltrexone/bupropion (NB-ER) is indicated to treat overweight and obesity in adults as an adjunct to a reduced-calorie diet and increased physical activity.
Michael Kyle +13 more
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On the exponent of a primitive digraph
Linear Algebra and its Applications, 1985 AbstractWe characterize the equality case of the upper bound γ(D) ⪕ n + s(n − 2) for the exponent of a primitive digraph in the case s ⪖ 2, where n is the number of the vertices of the digraph D and s is the length of the shortest elementary circuit of D. We also answer a question about the equality case when s = 1.
openaire +2 more sources
Nano‐Patterned CuO Nanowire Nanogap Hydrogen Gas Sensor with Voids
Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.Sub‐5‐ppb hydrogen (H2) detection and sub‐10‐s response and recovery times are achieved based on nano‐patterned polycrystalline CuO nanowires nanogap gas sensors with voids using electron‐beam lithography and unique annealing processes. Pre‐H2 annealing, void‐generating oxidation, and downscaled nanogap electrodes are key to improving the sensing ...
Muqing Zhao +4 more
wiley +1 more source
Comparison of the Passive Behavior of NiTi and CoNiCrMo in Simulated Physiological Solutions
Corrosion and Materials DegradationBiomedical alloys in general, except for the biodegradable type, exhibit passive behavior in neutral chloride solutions. Two commonly used biomedical alloys are nitinol (NiTi) and Co-35Ni-20Cr-10Mo (CoNiCrMo).
Bruce G. Pound
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Evaluation of a rapid biosensor tool for measuring PAH availability in petroleum-impacted sediment
Environmental Advances, 2021 Decades of research have shown that the concentration of freely dissolved PAH (Cfree) in sediment correlates with PAH bioavailability and toxicity to aquatic organisms.
Jason Conder +6 more
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