Results 121 to 130 of about 36,017 (247)

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira   +4 more
wiley   +1 more source

Aeronautical Engineering: A special bibliography, supplement 60 [PDF]

open access: yes
This bibliography lists 284 reports, articles, and other documents introduced into the NASA scientific and technical information system in July ...

core   +1 more source

Cobalt-base alloy [PDF]

open access: yes, 1973
A microstructurally stable, high strength cobalt based alloy for use at elevated temperatures to 2125 F was developed. The alloys are particularly directed for use in stators and other low stress components in advanced gas ...
Dreshfield, R. L.   +2 more
core   +1 more source

Review of Memristors for In‐Memory Computing and Spiking Neural Networks

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 3, March 2026.
Memristors uniquely enable energy‐efficient, brain‐inspired computing by acting as both memory and synaptic elements. This review highlights their physical mechanisms, integration in crossbar arrays, and role in spiking neural networks. Key challenges, including variability, relaxation, and stochastic switching, are discussed, alongside emerging ...
Mostafa Shooshtari   +2 more
wiley   +1 more source

Synergistic Flame Retardancy of MXene and Poly(p-Phenylene Oxide) on High-Performance Recycling Waste Rubber Modified Polystyrene Composites

open access: yesBioResources
The development of high-performance polystyrene composites modified with recycling waste tire rubbers composed of natural and synthetic rubber mixture is highly desirable for a sustainable society.
Aoxue Tian, Jinlong Zhang, Yong Wang
doaj  

Ferrographic and spectrographic analysis of oil sampled before and after failure of a jet engine [PDF]

open access: yes
An experimental gas turbine engine was destroyed as a result of the combustion of its titanium components. Several engine oil samples (before and after the failure) were analyzed with a Ferrograph as well as plasma, atomic absorption, and emission ...
Jones, W. R., Jr.
core   +1 more source

Metal‐Organic Framework‐Based Materials for Zinc‐Halogen (Br2, I2) Batteries: Mechanisms and Performance

open access: yesCarbon Neutralization, Volume 5, Issue 2, March 2026.
This article provides a comprehensive strategic analysis of MOFs for the zinc‐halide batteries, how MOF architectures address critical challenges, specifically the “shuttle effect” and “sluggish kinetics” by physically confining polyhalides and enhancing electrocatalytic activity.
Muhammad Saad Bhatti   +8 more
wiley   +1 more source

Comparative Analysis of Biodiesel Produced from Blends of Palm Kernel Shell and Cocoa Pods Oils with Conventional Diesel Fuel: Characterizations, FTIR, GC-MS, XRD and SEM Analysis of the Nano Catalyst

open access: yesABUAD Journal of Engineering Research and Development
The uncertainty of predicting the conditions of bio oils for the production of quality biofuels and reusability of catalyst, saving cost of production and time, make characterization of the oils/catalyst imperative.
Bassey Nkanang   +4 more
doaj   +1 more source

Methods of Visually Determining the Air Flow Around Airplanes [PDF]

open access: yes
This report describes methods used by the National Advisory Committee for Aeronautics to study visually the air flow around airplanes. The use of streamers, oil and exhaust gas streaks, lampblack and kerosene, powdered materials, and kerosene smoke is ...
Gough, Melvin N, Johnson, Ernest
core   +1 more source

Molecular Communication Is the Internet of Brain Missing Key: A Comprehensive Overview of Background Technologies and the Generic Framework

open access: yesEngineering Reports, Volume 8, Issue 3, March 2026.
A novel three‐layer architecture is proposed for cell‐to‐cell communication, integrating molecular, nano‐electronic, and digital components. It enables bio‐integrated applications such as remote emotional touching, consensual telepathy, and autonomous drug delivery. Molecular Communication (MC) is utilized with advanced implants, modulation techniques,
Saeed Banaeian Far   +2 more
wiley   +1 more source

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