Results 111 to 120 of about 2,868 (215)

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

Bio‐to‐Robot Transfer of Fish Sensorimotor Dynamics via Interpretable Model

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 3, March 2026.
This study demonstrates how a biologically interpretable model trained on real‐fish muscle activity can accurately predict the motion of a robotic fish. By linking real‐fish sensorimotor dynamics with robotic fish, the work offers a transparent, data‐efficient framework for transferring biological intelligence to bioinspired robotic systems.
Waqar Hussain Afridi   +6 more
wiley   +1 more source

Microstructural and Nanomechanical Characterization of CrCoAlHf/YSZ Multilayer Coatings Deposited by DC/RF Magnetron Sputtering

open access: yesInternational Journal of Ceramic Engineering &Science, Volume 8, Issue 2, March 2026.
A dense Cr/CoAlHf/YSZ multilayer coating was successfully deposited on Inconel 718 by DC/RF magnetron sputtering at 300°C. The coating exhibits nanocrystalline stability, strong interlayer adhesion, enhanced hardness, and excellent chemical integrity, making it suitable for advanced high‐temperature aerospace applications.
Syed Faizan Altaf   +2 more
wiley   +1 more source

Modelling and simulation of hydrogen production via natural gas plasma pyrolysis

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 3, Page 1174-1189, March 2026.
Methane pyrolysis simulation model. Abstract Plasma pyrolysis is a cutting‐edge technology that produces hydrogen and solid carbon from methane without emitting carbon dioxide. In this study, we developed a process simulation model in Aspen HYSYS to analyze the behaviour of this technology at the commercial scale.
Muhammad Badrul Islam Chowdhury   +2 more
wiley   +1 more source

The Effects of Nitrate on Brown Fat Fraction and Activation in Older Adults With Type 2 Diabetes: A Randomised, Double‐Blind and Placebo‐Controlled Crossover Trial

open access: yesEuropean Journal of Sport Science, Volume 26, Issue 3, March 2026.
ABSTRACT Type 2 diabetes mellitus (T2DM) is a metabolic disease characterised by chronic hyperglycaemia, whereas obesity is a major risk factor which increases morbidity and mortality. Treatments that alter white adipose tissue to express a metabolically active brown adipose phenotype in rats may offer adjunct treatment in people with T2DM.
Rebecca A. Neal   +13 more
wiley   +1 more source

Heat Transfer Optimization in New Polygonal Collectors Influence of Thermophysics Characteristic of Nanoparticles Using Response Surface Methodology

open access: yesEngineering Reports, Volume 8, Issue 3, March 2026.
Hybrid investigation of the novel parabolic trough collector influence of turbulent nanofluid flow. 3D Optimization solutions using response surface methodology. Computational fluid dynamics simulations for performance assessments of parabolic trough solar collectors.
Samaneh Baharloui   +2 more
wiley   +1 more source

Numerical Investigation of Transonic Axial Compressor Rotor With Leading‐Edge Tubercles

open access: yesEngineering Reports, Volume 8, Issue 3, March 2026.
Amplitude, wavelength, and span‐wise location of the leading‐edge tubercles on a transonic NASA Rotor 37 compressor are numerically optimized. An increase in efficiency by 0.52% compared to the corresponding baseline rotor is observed. The location of the shockwave moves downstream of the rotor with 1.91% higher pressure.
Muhammad Hamza   +6 more
wiley   +1 more source

Stability Criteria of Reversible Pump Turbines

open access: yes, 2014
The objective in this Master's Thesis was to verify the stability criteria for a centrifugal pump. Operation of an unstable pump may lead to either exponential or oscillatory unstable behavior of both pressure and volume flow of the water in the conduit system. This is of course unwanted, and fulfilling the stability criteria is desirable.
openaire   +1 more source

MODELING OF HYDRO-PNEUMATIC ENERGY STORAGE USING PUMP TURBINES

open access: yes, 2011
Modelling of a hydro-pneumatic energy storage system is the main aim of this paper. The project aims to model a prototype that uses a rotodynamic multi-stage pump-turbine to displace a virtual liquid piston for air compression. A dynamic model of the storage system is developed using the block diagram methodology.
Ortego, Egoï   +4 more
openaire   +6 more sources

Simulation and Experimental Investigation of Low‐Speed Centrifugal Pump Coupled With Vertical Ultra‐Low‐Head Turbine for Small‐Scale Irrigation

open access: yesEngineering Reports, Volume 8, Issue 3, March 2026.
From the reviews, a new concept of a low‐speed centrifugal pump (LSCP) driven by a vertical ultra‐low‐head hydro turbine (VULHT) was designed and tested on simulation and physical setup. It was performed with a 1.8 m delivery head, concluding as inefficient. For ultra‐low‐head conditions, different than centrifugal action is recommended.
Raj Kumar Chaulagain   +4 more
wiley   +1 more source

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