Results 61 to 70 of about 128,960 (311)
Modelling of opposed flame spread over thin electric wires: estimation of flame spread rates and limiting oxygen concentrationsA model of opposed flame spread along thin electric wires is developed to estimate the variation of flame spread rate (Vf) with oxygen concentrations and oxidiser flow velocity. The length of pyrolysis zone (Lpy) and Vf are treated as eigenvalues of the problem, and one-dimensional energy balance equations for the wire core and insulation are ...
Yusuke Konno +2 more
openaire +2 more sources
Colloidal Crack Sintering Lithography for Light‐Induced Patterning of Particle Assemblies
Advanced Functional Materials, EarlyView.Colloidal crack sintering lithography (CCSL) is a microfabrication technique that uses light‐induced photothermal heating to trigger sintering and controlled cracking in polymer colloidal assemblies. Local structural changes generate microchannels and patterns, enabling direct writing of diverse topographic motifs.
Marius Schoettle +2 more
wiley +1 more source
Upward Flame Spread Along A Vertical Solid For Transient Local Heat Release Rate [PDF]
Fire Safety Science, 1994 Theoretical and experimental analysis of turbulent upward flame spread along a vertical solid is presented A conventional flame spread model based on a linearized flame height approximation is generalized to incorporate burnout effects. The model is verified against full-scale flame spread tests using material heat release data obtained from ...
Y. Hasemi +3 more
openaire +1 more source
4D Printing of Self‐Immolative Polymers
Advanced Functional Materials, EarlyView.The integration of self‐immolative polymers (SIPs) into light‐based 3D printed structures is presented as a new “living” 4D printing strategy. By exploiting their metastability and stimuli‐responsiveness, SIP‐containing printed objects can undergo rapid and triggered degrowth under ambient conditions and subsequent regrowth through polymer ...
Johannes Markhart +3 more
wiley +1 more source
Buoyant Effects on the Flammability of Silicone Samples Planned for the Spacecraft Fire Experiment (Saffire) [PDF]
, 2015 Flammability experiments on silicone samples were conducted in anticipation of the Spacecraft Fire Experiment (Saffire). The sample geometry was chosen to match the NASA 6001 Test 1 specification, namely 5 cm wide by 30 cm tall.
Ferkul, Paul V. +3 more
core +2 more sources
Upcycling of Disposable Face Masks into Water‐Resistant and Flame Retardant Foams
Advanced Functional Materials, EarlyView.Disposable mask waste is upcycled into lightweight polypropylene‐based foams with tunable porosity and composite architectures reinforced by ear‐loop fibers. The sustainable solvent‐based process enables upcycling rates of 91% and solvent recovery of >90%.
Jingjing Pan +3 more
wiley +1 more source
Case Studies in Thermal EngineeringIn this paper, the effects of varying material widths on the propagation of discrete fires within diverse confined space conditions are investigated experimentally.
Zhenkun Wu +5 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Degradable Polyphosphoester (PPE) gradient copolymers (GCPs) are synthesized via one‐pot copolymerization. We show that GCPs self‐assemble into nanostructures like polymersomes, effectively mimicking the behavior of traditional BCPs. The gradient strength is key, with softer gradients favoring micelles.
Suna Azhdari +7 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.Coagulative granular hydrogels are composed of packed thrombin‐functionalized microgels that catalyze the conversion of fibrinogen into a secondary fibrin network, filling the interstitial voids. This bio‐inspired approach stabilizes the biomaterial to match the robustness of bulk hydrogels without compromising injectability, mimicking the initial ...
Zhipeng Deng +16 more
wiley +1 more source
Analysis of a numerical method for studying upward flame spread over solid material [PDF]
Компьютерные исследования и моделирование, 2018 Reduction of the fire hazard of polymeric materials is one of the important scientific and technical problems. Since complexity of experimental procedures associated with flame spread, establishing reacting flows theoretical basics turned out to be ...
Artem Andreevich Shaklein +2 more
doaj +1 more source