Results 131 to 140 of about 65,564 (313)

Auto-ignition of ionic liquid fuels with hydrogen peroxide triggered by copper-containing liquid promoter

Energetic Materials Frontiers
Research into next-generation propellants with green fuel–oxidizer pairs to replace the currently used highly toxic hydrazine–N2O4 system has attracted widespread attention. Ionic liquids (ILs) and hydrogen peroxide have demonstrated their feasibility as
Si-cheng Liao, Tian-lin Liu, Zhi-yu Zhou, Kang-cai Wang, Qing-hua Zhang   +4 more
doaj   +1 more source

Using childhood landscape memories to uncover the dynamics of Anthropocene in African Urbanscapes

People and Nature, EarlyView.
Abstract This perspective provides a reflective account of our personal experiences as African professors and lecturers in diverse fields of environmental sciences encountering the urban Anthropocene. Here, we explain the nature of the unprecedented, potent and hidden changes in our lived environments.
Aliyu Salisu Barau, Halima Abdulkadir Idris, Muhammad Nuraddeen Danjuma, Murtala Uba Mohammed, Abdulaziz Hassan, Amina Sheikh Abdullahi   +5 more
wiley   +1 more source

Lightweight Sheet Molding Compound Composites With Enhanced Mechanical Performance via Cellulose Nanocrystal Reinforcement

Polymer Composites, EarlyView.
Mechanical Property Enhancement and 21% Density Reduction in CNC‐Reinforced Glass Fiber Composites. ABSTRACT The use of cellulose nanocrystals (CNCs) as a sustainable, high‐performance alternative to partially replace calcium carbonate (CaCO3) in polyester sheet molding compound (SMC) composites is investigated.
Kim Anh Pham, Shristi Ghosh, Andrew Geda, Kyriaki Kalaitzidou   +3 more
wiley   +1 more source

Value‐Added Recycling of Beverage Carton Waste Into Thermoplastic Sandwich Structures With Enhanced Energy Absorption and Damping Properties

Polymer Composites, EarlyView.
Preparation of lightweight composite panels from multilayer beverage carton waste. ABSTRACT Beverage carton waste, a multi‐layer composite of cardboard, polymer, and aluminum, presents significant recycling challenges for conventional recovery technologies. This work presents a manufacturing process‐oriented method that allows shredded beverage cartons
Csenge Tóth, Róbert Nagy, Ábris Dávid Virág   +2 more
wiley   +1 more source

Assessment of the Interaction between Ammonium Dinitramide and Isocyanurate Bonding Agents for Application on Technologies of Composite Solid Propellants

Propellants, Explosives, Pyrotechnics, EarlyView.
This work investigates the interaction of two isocyanurate‐based bonding agents with ammonium dinitramide: triallyl isocyanurate and 1,3,5‐tris(2‐hydroxyethyl) isocyanurate, which contain alkene and hydroxyl functional groups in their side chains, respectively.
Jessica O. Silva, Josiane R. C. Silva, Kamila P. Cardoso, Milton F. Diniz, Márcio Y. Nagamachi, Luiz F. A. Ferrão   +5 more
wiley   +1 more source

Evaporation and Ignition of Isolated Fuel Drops in an Oxidizing Environment: Analytical Study Based on Varshavskii’s ‘Diffusion Theory’

Applied Sciences
Varshavskii’s ‘Diffusion Theory’, less investigated due to its limited international visibility, can offer one of the simplest and, on the other hand, high-accuracy methods for evaluating the ignition delay of fossil fuel and biofuel droplets, including ...
Laurencas Raslavičius
doaj   +1 more source

Evaluation of a High‐Performance Monopropellant Formed of Microencapsulated Hydrocarbon Fuels in Combination With Gelled Hydrogen Peroxide in a Strand Burner Setup

Propellants, Explosives, Pyrotechnics, EarlyView.
A high‐performance premixed monopropellant is prepared from hydrocarbon‐filled microcapsules and hydrogen peroxide. This propellant is burned in a strand burner, and the effect of different parameters on the burn rate is evaluated. ABSTRACT A dispersion of hydrocarbon‐fuel‐filled microcapsules in gelled hydrogen peroxide can form a premixed ...
Robin Scholl, Felicitas S. Moll, Dominic Freudenmann, Stefan Schlechtriem   +3 more
wiley   +1 more source

Characterization of Ultrafast Decomposition Dynamics in Nitrate Esters

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Ignition of energetic materials initiates chemical reactions on atomic length scales within femtoseconds, making these reactions difficult to investigate experimentally. The technique of femtosecond time‐resolved mass spectrometry (FTRMS) can capture molecular rearrangement and bond‐breaking events in isolated molecules with sub‐50 femtosecond
Madison K. Minvielle, Erica Britt, Hugo A. López Peña, Katharine Moore Tibbetts   +3 more
wiley   +1 more source

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

Journal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone, Mohammed Anteet, Pawandeep S. Matharu, Yara Almubarak   +3 more
wiley   +1 more source

Strategies for Assessing Post‐Wildfire Geomorphic Resilience in Semiarid Rivers

River Research and Applications, EarlyView.
ABSTRACT We review and summarize diverse components of a catchment that can be monitored after wildfire to assess the geomorphic resilience of the river corridor in semiarid regions. We distinguish upland portions of river catchments from river corridors.
Ellen Wohl, Shayla Triantafillou, Alex Thornton‐Dunwoody, Connor Mertz, Katie Larkin, William Keenan, Steven Griffin, Dylan Davis, Lindsey Blehm   +8 more
wiley   +1 more source