Results 71 to 80 of about 2,810 (193)

Flow physics beyond the Betz limit

open access: yes
A pivotal theoretical result of the early 20th century demonstrated that the limit of energy extraction for a wind or tidal stream turbine from an unconstrained flow is 16/27 of the upstream kinetic flux passing through the turbine area, known as the ...
Dehtyriov, Daniel
core   +1 more source

A branch-adaptive framework for multi-timescale wind power forecasting: Optimization via hybrid evolutionary algorithm and physics-informed modeling

open access: yesInternational Journal of Electrical Power & Energy Systems
High-precision multi-timescale wind power forecasting is critical for grid security. However, existing unified architectures often struggle to simultaneously capture high-frequency transients in real-time horizons and long-term dependencies in day-ahead ...
Minan Tang   +6 more
doaj   +1 more source

Factors Influencing the Implementation of Transitional Care for Adolescents With Profound Intellectual and Multiple Disabilities: Experiences of Dutch Healthcare Professionals

open access: yesJournal of Intellectual Disability Research, EarlyView.
ABSTRACT Background The transition from paediatric to adult healthcare is particularly challenging for adolescents with profound intellectual and multiple disabilities (PIMD) and their families. This study aims to identify factors that Dutch healthcare professionals perceived as relevant to successful implementation of transitional care for adolescents
Ilse Ooms   +3 more
wiley   +1 more source

Trade Wars, International Supply Chains, and Business Associations: Historical Evidence from Norway and Portugal

open access: yesJournal of Management Studies, EarlyView.
Abstract This article examines the 1921–1923 trade war between Norway and Portugal as a historical case for exploring business responses to deglobalization and trade disruption. Focusing on the international supply chains (ISCs) of port wine and salted and dried cod, it investigates how business actors contributed to the recoupling of ISCs after a ...
Rolv Petter Amdam   +3 more
wiley   +1 more source

The Analogia Entis for Reformed Theology: Retrieving Calvin's Implicit Metaphysics

open access: yesModern Theology, EarlyView.
Abstract The famous controversy between Emil Brunner and Karl Barth which led to Barth's ‘No!’ was driven by disagreements over how to read John Calvin: Barth and Brunner never agreed on whether Calvin had a doctrine of the analogy of being. This article rekindles the debate.
Silvianne Aspray
wiley   +1 more source

Excitation beyond the monochromatic laser limit: simultaneous 3-D confocal and multiphoton microscopy with a tapered fiber as white-light laser source

open access: yes, 2005
Confocal and multiphoton microscopy are essential tools in modern life sciences. They allow fast and highly resolved imaging of a steadily growing number of fluorescent markers, ranging from fluorescent proteins to quantum dots and other fluorophores ...
Härtig, Wolfgang   +6 more
core   +1 more source

Maximum thermodynamic power coefficient of a wind turbine [PDF]

open access: yes, 2020
According to the centenary Betz-Joukowsky law, the power extracted from a wind turbine inopen flow cannot exceed 16/27 of the wind transported kinetic energy rate.
P. Patrício   +3 more
core   +1 more source

Optimizing Aerodynamic Efficiency of Motionless Paired Airfoil Wind Turbine: A Numerical and Experimental Study

open access: yesEnergies
The motionless wind turbine with opposing paired airfoils offers a compact and noiseless alternative to conventional wind energy systems, but its performance remains well below the Betz limit, limiting urban deployment potential.
Syed Murawat Abbas Naqvi   +6 more
doaj   +1 more source

Depressive symptoms and populism: Evidence from European countries

open access: yesPolitical Psychology, Volume 47, Issue 4, August 2026.
Abstract In recent years, depression has entered the research agenda of political psychology, emerging as a meaningful psychological correlate of diverse political attitudes and behaviors. Surprisingly, however, its link to populism—the political phenomenon that has probably attracted most public and scholarly attention over the past several years—has ...
Nathalie Herren   +3 more
wiley   +1 more source

Facts as a foundation: How people respond to historical atrocities in five countries

open access: yesPolitical Psychology, Volume 47, Issue 4, August 2026.
Abstract Informing people about historical atrocities and injustice is considered critical for sustaining democracies and preventing similar atrocities in the future. Yet, what remains unknown is whether exposure to factual information about ingroups' historical injustices, such as genocide, slavery, or colonial crimes, leads to increased willingness ...
Oguzhan Turkoglu   +3 more
wiley   +1 more source

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