Results 81 to 90 of about 6,488 (253)

Comparison of Presumed PDF Models of Turbulent Flames

open access: yesJournal of Combustion, 2012
Over the past years, the use of a presumed probability density function (PDF) for combustion progress variable or/and mixture fraction has been becoming more and more popular approach to average reaction rates in premixed and partially premixed turbulent
Chen Huang, Andrei N. Lipatnikov
doaj   +1 more source

Performance Evaluation of Compression‐Molded Recycled Mixed Plastic Fractions From Light Packaging

open access: yesPolymer Engineering &Science, EarlyView.
Mixed HDPE/PP bottle‐cap waste was successfully processed through closed‐loop mechanical recycling. The recycled blends maintained stable thermal, rheological, and mechanical performance over multiple cycles, demonstrating the feasibility of valorizing heterogeneous polyolefin waste without advanced polymer separation.
Raquel Ortega   +4 more
wiley   +1 more source

Engineering Phosphorus‐Modified Flame‐Retardant Thermoplastic Polyurethane via Reactive Melt Processing

open access: yesJournal of Polymer Science, EarlyView.
Phosphorus‐modified TPUs are prepared by one‐step, solvent‐free reactive melt processing using phosphate‐ or phosphonate‐containing diols and PEG or PPG soft segments. Fire behavior and mechanical response depend strongly on both chemistries. Peak heat release rate decreases by up to 54%, but reduced tensile strength and V‐2 dripping behavior reveal a ...
Léa Gratier   +4 more
wiley   +1 more source

Design, synthesis and activity evaluation of tetrahydroisoquinoline‐based programmed cell death ligand 1 inhibitors

open access: yesSmart Molecules, EarlyView.
Based on a 3D‐quantitative structure‐activity relationship pharmacophore model, structural optimization of Y6 yielded Y7f. Mechanistic studies revealed that Y7f acted as a programmed death receptor 1/programmed cell death ligand 1 (PD‐L1) interaction inhibitor by inducing PD‐L1 dimerization. Y7f restored T‐cell function.
Menglin Yu   +15 more
wiley   +1 more source

Experimental Study on Laminar Burning Velocity and Flame Instability of Liquefied Petroleum Gas/Dimethyl Ether Blended Gas: Effects of Equivalence Ratio and Blended Ratio

open access: yesSafety Science and Technology, EarlyView.
This study reveals the regulatory effect of LPG addition on laminar burning velocity of DME/air mixtures, and elucidates the governing mechanisms of flame instability under varying initial conditions. ABSTRACT Liquefied petroleum gas/dimethyl ether (LPG/DME) blended gas is a promising clean alternative fuel, characterized by high efficiency and clean ...
Qi Zhang   +12 more
wiley   +1 more source

In situ mapping of iron oxidation in laminar metal fuel flames using X‐ray absorption spectroscopy

open access: yesJournal of Synchrotron Radiation, EarlyView.
For the first time an iron metal flame has been mapped by in situ X‐ray absorption spectroscopy. Strong gradients in oxidation state and phase composition across the metallic core and the flame front were found with FeO peaking at the visible flame front and Fe3O4 forming further beyond.Metal fuels such as iron are promising carbon‐free energy carriers
Lukas Braun   +7 more
wiley   +1 more source

Biocompatibility With Osteogenic Potential of Premixed Bioceramic Cements for Use in Apical Surgery

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT This study investigated the biocompatibility and osteogenic potential of premixed bioceramic cements (PBCs)—CeraPutty, EndoCEM MTA Premixed, Well‐Root PT, and One‐Fil PT Injectable—as alternatives to mineral trioxide aggregate for retrograde filling in endodontic microsurgery.
Yesol Kim   +5 more
wiley   +1 more source

Facilitators, Barriers and Reported Implementation Outcomes of Wide‐Awake Local Anaesthesia No Tourniquet in Hand Surgery Practice: A Systematic Scoping Review

open access: yesANZ Journal of Surgery, EarlyView.
ABSTRACT Background Wide‐Awake Local Anaesthesia No Tourniquet (WALANT) is increasingly being used by hand surgeons. This systematic scoping review aims to identify and collate existing evidence on the reported implementation outcomes, barriers, facilitators and implementation strategies relevant to WALANT in hand surgery practice. Methods A systematic
Freya Roberts   +4 more
wiley   +1 more source

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