Results 71 to 80 of about 4,152 (225)

3D Polymeric Nanonetworks: From Self‐Assembly to Advanced Fabrication

open access: yesMacromolecular Materials and Engineering, EarlyView.
This review provides the first systematic cross‐method comparison of fabrication techniques for 3D polymeric nanonetworks. It evaluates five key strategies—block copolymer self‐assembly, hyper‐crosslinking, template‐assisted methods, 3D printing, and nanolithography—across critical metrics including resolution, throughput, scalability, and material ...
Carlos G. Cobos   +2 more
wiley   +1 more source

Navigating the Chemical Space of HCN Polymerization and Hydrolysis: Guiding Graph Grammars by Mass Spectrometry Data

open access: yesEntropy, 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

Strain Development During Cure of Partially Pre‐Cured Thermosetting Composites Measured With Distributed Fiber Optic Sensors

open access: yesPolymer Composites, EarlyView.
Schematic representation of the beneficial effect of ply pre‐curing on temperature overshoot, internal strain and warpage during cure of thin and thick thermosetting composites. ABSTRACT Detection of manufacturing‐induced defects in thermosetting composites is crucial to guarantee part quality, safety, and improve manufacturing efficiency.
Francesco Taddei   +3 more
wiley   +1 more source

Prebiotic Competition between Information Variants, With Low Error Catastrophe Risks

open access: yesEntropy, 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

Sustainable Photoinduced Frontal Polymerization of Acrylic Resins Reinforced by Biofillers

open access: yesPolymer Composites, EarlyView.
Top left: Chemical structures of the monomers and initiators used. Top right: Effect of monomer ratios on frontal velocity. Bottom left: Schematic overview of the PIFP process as the reaction front moves within the mold. Bottom right: Application of PIFP for wood repair.
Huseyin Mirac Dizman   +2 more
wiley   +1 more source

A Study on Preventing Thermal Runaway of Contaminated Ammonium Nitrate Prill in Bulk Storage

open access: yesPropellants, Explosives, Pyrotechnics, EarlyView.
Schematic illustration of a contaminated region of ammonium nitrate prill undergoing exothermic decomposition, producing gases containing NOx. The interstitial flow of these heated gases rapidly raises the temperature of ammonium nitrate along the flow path.
Pramith Priyananda   +3 more
wiley   +1 more source

Towards open-ended evolution in self-replicating molecular systems

open access: yesBeilstein Journal of Organic Chemistry, 2017
In this review we discuss systems of self-replicating molecules in the context of the origin of life and the synthesis of de novo life. One of the important aspects of life is the ability to reproduce and evolve continuously.
Herman Duim, Sijbren Otto
doaj   +1 more source

Toxicity of Various Pyrolysis Liquids From Biosolids on Methane Production Yield

open access: yesFrontiers in Energy Research, 2019
Aqueous pyrolysis liquid (APL) is a high-COD byproduct of wastewater biosolids pyrolysis that is comprised of numerous complex organic compounds and ammonia nitrogen (NH3-N). One potential beneficial use of APL is as a co-digestate to produce more biogas
Saba Seyedi   +2 more
doaj   +1 more source

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