Results 161 to 170 of about 946 (264)

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 Construction of Phosphorus‐Containing Crosslinked Urethane Network Combined With Ammonium Polyphosphate via Reactive Blending for Enhancing Flame Retardancy and Anti‐Dripping Performance of Polylactic Acid Composites

open access: yesSafety Science and Technology, EarlyView.
By in situ reaction blending, DOPO‐HQ and THEIC were added to PLA with MDI to construct a phosphorus containing polyurethane network, which significantly improved the flame retardant and anti‐dripping properties of polylactic acid composites. ABSTRACT Polylactic acid (PLA) is highly flammable and prone to severe melt dripping during combustion, which ...
Chiyuan Chen   +4 more
wiley   +1 more source

“It's Not Equality, …It's Not Humanizing:” Content‐Area Teachers' Tensions Between CCR Curriculum and Linguistically Responsive Professional Development

open access: yesTESOL Quarterly, EarlyView.
Abstract This qualitative study explores how secondary content‐area teachers of emergent bilingual (EB) students navigate tensions between linguistically responsive professional development (PD) and the implementation of state‐mandated College and Career Readiness (CCR) curricula in south Texas.
Caryn Calisi   +8 more
wiley   +1 more source

A Bioregional Approach to Teaching Sustainability and Resilience Online

open access: yesNew Directions for Teaching and Learning, EarlyView.
ABSTRACT This chapter describes how the first graduate program in resilient and sustainable communities has evolved over the past decade, maintaining its bioregional approach to distance learning while adapting the curriculum to meet new challenges in the age of climate change.
Laird Christensen
wiley   +1 more source

Recent progress on the development of hydrogel‐based microneedles for transdermal drug delivery

open access: yesVIEW, EarlyView.
This study provides a comprehensive and up‐to‐date analysis of recent progress in HMN technology, covering fundamental transdermal delivery mechanisms and design principles, biomaterials used in HMN fabrication, drug loading and release strategies, and emerging therapeutic applications.
Mohammad Muhtasim Ittisaf   +5 more
wiley   +1 more source

Impact of Selected Metal Oxides on the Thermodynamics of Solid Rocket Propellant Combustion. [PDF]

open access: yesMolecules
Janowska K   +6 more
europepmc   +1 more source

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