Results 171 to 180 of about 279,096 (357)

Comparison of blade loads of fixed and free yawing wind turbine [PDF]

open access: yes
The self regulating composite bearingless wind turbine utilizes an automatic pitch control concept and a completely unrestrained yawing degree of freedom.
Bielawa, R. L., Cheney, M. C.
core   +1 more source

A Fully Solar‐Driven Microprocessor‐Regulated Portable Cathodic Protection Device Incorporating a Highly Active Noble‐Metal‐Free Anode for Efficient Green Metal Protection

open access: yesEcoEnergy, EarlyView.
A fully solar‐driven portable device was fabricated for efficient green outdoor cathodic protection via integrating functional modules in a weather‐proof housing, which captured sunlight and stored the converted electric energy for real‐time tracking and modulating metal potential.
Guangyao Nie   +5 more
wiley   +1 more source

Experimental data and theoretical analysis of an operating 100 kW wind turbine [PDF]

open access: yes
Experimental test data are correlated with analyses of turbine loads and complete system behavior of the ERDA-NASA 100 kW Mod-0 wind turbine generator over a broad range of steady state conditions, as well as during transient conditions.
Anderson, W. D.   +3 more
core   +1 more source

The diel niche of brown bears: constraints on adaptive capacity in human‐modified landscapes

open access: yesEcography, EarlyView.
Diel activity rhythms, representing the behavioral pattern of the sleep–wake cycle, may be adjusted by wildlife in response to changes in environmental conditions. An increase in nocturnality is typically recognized as an adaptive strategy to segregate from humans and mitigate heat stress. Numerous studies have investigated spatial patterns and habitat
Aurora Donatelli   +12 more
wiley   +1 more source

A 100 kW experimental wind turbine: Simulation of starting, overspeed, and shutdown characteristics [PDF]

open access: yes
The ERDA/NASA 100 kW experimental wind turbine is modeled on a digital computer in order to study the performance of a wind turbine under operating conditions. Simulation studies of starting, overspeed, and shutdown performance were made.
Gilbert, L. J.
core   +1 more source

Recent Developments in Materials Design for Advanced Supercapacitors

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Recent advancements in supercapacitor materials are reviewed to realize high‐power energy storage applications. The developments in material design for improved performance of advanced supercapacitors can provide a promising route for energy storage solutions.
Abhisikta Bhaduri   +2 more
wiley   +1 more source

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