Results 91 to 100 of about 5,372 (258)
A recursive microfluidic platform to explore the emergence of chemical evolution
Beilstein Journal of Organic Chemistry, 2017 We propose that a chemically agnostic approach to explore the origin of life, using an automated recursive platform based on droplet microfluidics, could be used to induce artificial chemical evolution by iterations of growth, speciation, selection, and ...
David Doran +4 more
doaj +1 more source
Multifidelity Thermochemical–Mechanical Modeling of Pultruded Hollow Composite Profiles
Journal of Manufacturing Science and Engineering, EarlyView.ABSTRACT Pultrusion of hollow composite profiles with fast‐curing polyurethane (PU) resin requires simultaneous control of heat transfer, cure kinetics, viscosity evolution, and pulling resistance, making empirical process optimization costly and uncertain.
Jacob Harris +7 more
wiley +1 more source
Materials and Corrosion, EarlyView.Hydrogen‐enhanced SCC of WAAM Inconel 625 in 3.5 wt.% NaCl solution. Hydrogen charging reduces passive film stability (lower corrosion potential) and promotes pitting at Laves phase/matrix interfaces. Stress corrosion cracks propagate along Laves‐rich regions, leading to quasi‐cleavage brittle fracture.
Xu Zhang +5 more
wiley +1 more source
, 2005 Solid-state autocatalysis leading to oscillatory behaviour in GeOH and SiOH formation is demonstrated in optical fibres processed at 500o C. The results confirm the proposed view that hydrogen accelerates change in processed optical fibres principally ...
Sørensen, Henrik Rokkjær +2 more
core
Acid‐Promoted Polarity Switch Enables Efficient Radical Polymerization of Vinyl Ethyl Sulfide
Macromolecular Rapid Communications, EarlyView.Acid‐induced polarity switching activates electron‐rich vinyl ethyl sulfide toward radical formation and enables efficient free‐radical propagation, and polymers with monomodal molecular‐weight distributions using either strong or weak acids. ABSTRACT Herein, we report a new concept for the polymerization of electron‐rich vinyl sulfides based on an ...
Dulce M. Sánchez‐Cerrillo +1 more
wiley +1 more source
Entropy, 2013 Polymers of hydrogen cyanide and their hydrolysis products constitute a plausible, but still poorly understood proposal for early prebiotic chemistry on Earth.
Peter F. Stadler +5 more
doaj +1 more source
, 2016 An asymmetric autocatalysis reaction was initiated by a finite single-wall carbon nanotube molecule with helical chirality. The asymmetric induction was initiated by the chiral environment arising from the planar chirality of the tubular polyaromatic ...
Hiroyuki Isobe (1433551) +5 more
core +1 more source
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT The present work is devoted to establishing existence results and examining the stability properties of solutions associated with a generalized Brusselator reaction–diffusion system in both the classical and fractional‐order settings. The corresponding ODE and PDE formulations are considered to establish the global existence of solutions in ...
Fadia Haouam +3 more
wiley +1 more source
Prebiotic Competition between Information Variants, With Low Error Catastrophe Risks
Entropy, 2015 During competition for resources in primitive networks increased fitness of an information variant does not necessarily equate with successful elimination of its competitors.
Radu Popa, Vily Marius Cimpoiasu
doaj +1 more source
Polymer Composites, EarlyView.Two‐step compatibiization of aramid fibers with PVC via Plasma Activation and surface reaction. ABSTRACT This study investigated the application of a two‐step compatibilization procedure to aramid fiber–polyvinyl chloride (PVC) composites. Aramid fibers were subjected to high radio frequency power air plasma treatment and incorporated into the PVC ...
Adekunle Lawrence Omoniyi +3 more
wiley +1 more source