Results 191 to 200 of about 4,612,992 (387)

Do Consumers Value Diversity in Agriculture? A Choice Experiment

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Farm ownership in the US today is racially and ethnically homogeneous. Diverse farmers and ranchers make up less than 10% of all producers, they tend to be less financially stable and have tighter profit margins. In the past few years, both government and industry programs have aimed to increase the participation and profitability of diverse ...
Maria Kalaitzandonakes   +2 more
wiley   +1 more source

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

open access: yesAdvanced 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   +4 more
wiley   +1 more source

Tests on duralumin columns for aircraft construction [PDF]

open access: yes
The following paper is based on the results of tests, upon duralumin columns, contained in two theses presented to the Department of Civil and Sanitary Engineering of the Massachusetts Institute of ...
Lee, John G
core   +1 more source

Advancing Circularity in Battery Systems for Renewable Energy: Technologies, Barriers, and Future Directions

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This article examines strategies to enhance the sustainability of battery systems in renewable energy through circular economy principles. It discusses recycling techniques, modular battery design, second‐life utilization, and regulatory frameworks. Key barriers include inadequate infrastructure and regulatory gaps.
Williams Chibueze Munonye   +5 more
wiley   +1 more source

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