Results 91 to 100 of about 1,394 (221)

From Resource Assessment to AEP Correction: Methodological Framework for Comparing HAWT and VAWT Offshore Systems

Journal of Marine Science and Engineering
The rapid expansion of offshore wind energy requires exploring alternative turbine architectures capable of operating efficiently in deep waters. While horizontal-axis wind turbines (HAWTs) dominate the current market, vertical-axis wind turbines (VAWTs)
María Luisa Ruiz-Leo, Isabel C. Gil-García, Ana Fernández-Guillamón   +2 more
doaj   +1 more source

The policy adjacent: How affordable housing generates policy feedback among neighboring residents

American Journal of Political Science, EarlyView.
Abstract While scholars have documented feedback effects among a policy's direct winners and losers, less is known about whether such effects can occur among the indirectly affected—“the policy adjacent.” Using 458 geocoded housing developments built between two nearly identical statewide ballot propositions funding affordable housing in California, we
Michael Hankinson, Asya Magazinnik, Melissa Sands   +2 more
wiley   +1 more source

Dynamics of Vertical Axis Wind Turbines (Darrieus Type)

International Journal of Rotating Machinery, 1995
A computing package that combines finite element methods for evaluating the resonance frequencies and modes of turbine subcomponents (blade, tower and shaft) together with the aerodynamic calculations for forces and moments taking into consideration the ...
A. F. Abdel Azim El-Sayed, C. Hirsch, R. Derdelinckx   +2 more
doaj   +1 more source

Effects of Hold Time on the Elevated Temperature Fatigue Crack Growth Behavior of Alloy 247LC‐DS

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT Creep–fatigue crack growth (CFCG) experiments were performed at 850°C and 950°C on nominally 12.70‐mm‐thick compact‐type specimens of alloy 247LC‐DS, a Ni‐base superalloy. The loading cycles consisted of trapezoidal waveforms with hold times of 2 and 20 min at the maximum force.
Zachary B. Towner, Santosh B. Narasimhachary, Phillip W. Gravett, Richard W. Neu, Christopher L. Muhlstein, Ashok Saxena   +5 more
wiley   +1 more source

Aerodynamic Analysis Models for Vertical-Axis Wind Turbines

International Journal of Rotating Machinery, 1995
This work details the progress made in the development of aerodynamic models for studying Vertical-Axis Wind Turbines (VAWT's) with particular emphasis on the prediction of aerodynamic loads and rotor performance as well as dynamic stall simulations. The
M. T. Brahimi, A. Allet, I. Paraschivoiu   +2 more
doaj   +1 more source

The Comparative Political Economy of the Green Transition: Economic Specializations and Skills Regimes in Europe

Regulation &Governance, EarlyView.
ABSTRACT The green transition is fundamentally transforming contemporary economies and societies. This article investigates how European models of capitalism perform and specialize across the green value chain—conceptualized as innovation, manufacturing, services, and deployment—and how national skill formation systems underpin these specializations ...
Luca Cigna, Donato Di Carlo, Niccolò Durazzi   +2 more
wiley   +1 more source

Effect of hypoxia on muscle activation at equivalent absolute and relative intensity during incremental and constant load exercise to task failure

Experimental Physiology, EarlyView.
Abstract We examined the impact of moderate hypoxia (HYPO) on muscle activation during incremental exercise matched for both absolute and equivalent relative intensity. Fifteen active subjects (10 males, 5 females) completed two ramp incremental test and two step tests in normoxia (NORM; FiO2${F_{{\mathrm{i}}{{\mathrm{O}}_2}}}$ = 0.209) and HYPO (FiO2${
Dania Ibrahim, Youmna Elsayed Hassanein, Nathan E. Townsend   +2 more
wiley   +1 more source

Scour‐Conditioned Seismic Fragility Analysis of Monopile‐Supported Offshore Wind Turbines

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 4, Page 947-967, 10 April 2026.
ABSTRACT Monopile‐supported offshore wind turbines (MS‐OWTs) are increasingly deployed in seismic coastal regions, where they face compound risks from earthquake loading and seabed scour. While past studies have addressed these hazards separately, seismic fragility under evolving scour conditions remains insufficiently understood. This study introduces
Francisco Pinto, Rodrigo Astroza, Felipe Vicencio, Raffaele De Risi   +3 more
wiley   +1 more source

Mapping engineering students' conceptions of responsibility in challenge‐based learning: The agency gap

Journal of Engineering Education, Volume 115, Issue 2, April 2026.
Abstract Background The complexity of engineering practice highlights the need to make students aware of their responsibility as future professionals. However, integrating this concept into the engineering curricula remains a challenge. Purpose The study explores how engineering students conceptualize their responsibilities as future professionals and ...
Diana Adela Martin, Gunter Bombaerts
wiley   +1 more source

Improving Power Generation in Rigid‐Wing Groundgen Airborne Wind Energy Systems Using Feedback Control—A Parametric Study

Wind Energy, Volume 29, Issue 4, April 2026.
ABSTRACT This paper explores different reel‐out strategies in a simulated environment to improve the power generation capability of Kitemill's KM1 prototype. The KM1 is a rigid‐wing groundgen airborne wind energy system that flies in circular loops during its power production phase. Firstly, we investigate the impact of flight and ground winch control.
Duc H. Nguyen, Mark H. Lowenberg, Espen Oland   +2 more
wiley   +1 more source