Results 281 to 290 of about 9,034,394 (372)
King and Cochrane: The technological treadmill and racial inequity in US agriculture
Abstract Between 1920 and 1969, the number of Black farmers in the US decreased from 14% of all operators to 4%. Using Martin Luther King Jr.'s critique of agricultural policy and Willard Cochrane's theory of the technological treadmill, we explore how racial discrimination was linked to policies that led to structural change in US agriculture.
Jared Hutchins, Jacopo De Marinis
wiley +1 more source
Amphibious Generator via Mechanical Coupling for Versatile Energy Harvesting
An amphibious hybrid triboelectric nanogenerator–electromagnetic generator (TENG–EMG) efficiently harvests energy from wind and water. By integrating TENG and EMG units with a gear‐assisted mechanism, it enhances power output and powers small electronic devices.
Chi Zhang+7 more
wiley +1 more source
Vocal risk mapping in classical singers: an analysis of the self-perception of voice quality, vocal fatigue, and singing voice handicap. [PDF]
Gomes D, Moreti F, Behlau M.
europepmc +1 more source
Progress of Aqueous Rechargeable Zn–CO2 Batteries with a Focus on Cathode Bifunctional Catalysts
Aqueous rechargeable Zn–CO2 batteries are emerging as a promising technology for sustainable energy storage and carbon dioxide (CO2) utilization, owing to their high safety, theoretical capacity, and product diversity. Despite their significant theoretical potential, the application of Zn–CO2 batteries is hindered due to several challenges, including ...
Peng Chen+3 more
wiley +1 more source
The rising demand for efficient energy systems has spotlighted 2D mesoporous carbon materials due to their high surface area, tunable porosity, and electrical conductivity. This article explores synthesis methods (template‐assisted, chemical vapor deposition), fabrication techniques (electrospinning, freeze‐drying), and applications in batteries ...
Pariksha Bishnoi+5 more
wiley +1 more source