Results 181 to 190 of about 3,085,452 (343)

DNS and Experimental Assessment of Shark-Denticle-Inspired Anisotropic Porous Substrates for Drag Reduction. [PDF]

Biomimetics (Basel)
Cooper BK, Pinto S, Hong H, Zhang Y, Cattafesta L, Wu W.   +5 more
europepmc   +1 more source

Thin Reinforced Sulfonated Poly(phenylene sulfone) Membranes for Durable Water Electrolysis: Suppressed Swelling and Enhanced Stability Over 2000 Hours

Advanced Energy Materials, EarlyView.
Hydrocarbon membranes have the potential to significantly enhance the efficiency of water electrolyzers. However, their application is often limited by insufficient stability resulting from excessive swelling. This work presents a strategy to achieve efficient, safe and stable operation of a 24 µm thin hydrocarbon membrane by combining a modified ...
Clara Schare, Giorgi Titvinidze, Christian Piesold, Edgar Cruz Ortiz, Nodar Dumbadze, Michael Schuster, Klaus‐Dieter Kreuer, Carolin Klose, Andreas Münchinger   +8 more
wiley   +1 more source

Research on the front face styling design of a ship type based on low drag coefficient. [PDF]

Sci Rep
Sheng G, Ran Y, Lyu J, Wang Z.
europepmc   +1 more source

Relationship Between Knowledge and Compliance With Safety Measures: Evidence From COVID‐19

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT Compliance with health safety protocols is important for protecting public health, particularly in agricultural sectors where disease outbreaks can disrupt production and market access. Despite its economic significance, we know little about what drives protocol compliance.
Nilufer Cetik, Carola Grebitus, Lauren Chenarides   +2 more
wiley   +1 more source

Advancing Direct Alcohol Fuel Cells: Innovations in Composite‐Based Electrocatalysts and Polymer Support Materials for Enhanced Efficiency

Advanced Energy and Sustainability Research, EarlyView.
This graphical abstract emphasizes the working principle and the various essential factors of the direct methanol fuel cell (DMFCs). Additionally, various parameters, such as the nanoparticle's size and shape, the nature of the electrolyte, the type of support materials, and their fabrication process, also play essential roles in the functioning of the
Kirti Mishra, Samarjeet Singh Siwal, Phil Hart, Vijay Kumar Thakur   +3 more
wiley   +1 more source

Geometrically nonlinear high-fidelity aerostructural optimization for highly flexible wings. [PDF]

Struct Multidiscipl Optim
Gray AC, Kennedy GJ, Martins JRRA.
europepmc   +1 more source

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

Advanced Energy and Sustainability Research, EarlyView.
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, Md Mahbubur Rahman, Karib Hassan Khan, Md Nizam Uddin, Dewan Hafiz Nabil   +4 more
wiley   +1 more source

Jumping Kinematics and Performance in Fighting Crickets Velarifictorus micado. [PDF]

Biomimetics (Basel)
Xing Y, Zhang Y, Yan Y, Yang J.
europepmc   +1 more source

Import Wheat Tenders and the Effects of the Russian Invasion

Agribusiness, EarlyView.
ABSTRACT Risk and volatility for many commodities escalated sharply following the Russian invasion of Ukraine, creating numerous uncertainties for trading firms and importers. The purpose of this study is to analyze the bidding behavior in Egyptian wheat import tenders in the pre‐ and post‐invasion periods.
William W. Wilson, Sumadhur Shakya, Isaac Dubovoy   +2 more
wiley   +1 more source

Investigation of a staggered dual-rotor wound field synchronous motor for offshore wind turbine full-scale testing platforms. [PDF]

Sci Rep
Xue Y, Qin S, Qi C, Wang N, Liu C, Zhao W.   +5 more
europepmc   +1 more source