Results 71 to 80 of about 42,271 (208)

Sub‐Synchronous Oscillation in Offshore Energy Islands With MMC‐HVDC Links: Mechanism, Analysis and Mitigation

open access: yesIET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper investigates the small‐signal stability of offshore energy islands interconnected by multiple MMC‐HVDC links and reveals a previously unreported sub‐synchronous oscillation (SSO) mechanism caused by multi‐converter coupling through the offshore AC network.
Arash July   +5 more
wiley   +1 more source

The Longitudinal Structure Function at the Third Order

open access: yes, 2004
We compute the complete third-order contributions to the coefficient functions for the longitudinal structure function F_L, thus completing the next-to-next-to-leading order (NNLO) description of unpolarized electromagnetic deep-inelastic scattering in ...
A. Vogt   +40 more
core   +3 more sources

Focused acceleration of cosmic-ray particles in non-uniform magnetic fields [PDF]

open access: yes, 2011
The Fokker–Planck equation for cosmic-ray particles in a spatially varying guide magnetic field in a turbulent plasma is analyzed. An expression is derived for the mean rate of change of particle momentum, caused by the effect of adiabatic focusing in a ...
Litvinenko, Yuri E.   +1 more
core   +1 more source

A Single‐Input Dual‐Output Converter With Adjustable Step‐Up/Step‐Down Voltages for Versatile Applications

open access: yesIET Power Electronics, Volume 19, Issue 1, January/December 2026.
The converter can deliver a wide range of output voltages based on the selected voltage references. The dual output converter (DOC) boosts voltage in the step‐up output port with high gain, enabling connection to microgrids or supporting industrial loads, while the other port supplies low voltage for local loads.
Vahid Abbasi   +2 more
wiley   +1 more source

Understanding Social Entrepreneurs’ Views on Strategies for Ensuring Social Economy Sustainability

open access: yesEconomics and Culture
This study aims to probe the internal consistency of survey questions aligning with priorities outlined in the World Economic Forum Insight Report "Unlocking the Social Economy" within Latvia and Georgia.
Kiladze Lika   +3 more
doaj   +1 more source

Evolution of the Lyman-alpha Halos around High-Redshift Radio Galaxies [PDF]

open access: yes, 2009
We have obtained the first constraints on extended Ly-alpha emission at z ~ 1 in a sample of five radio galaxies. We detect Ly-alpha emission from four of the five galaxies.
Andrew W. Zirm   +27 more
core   +1 more source

Beer Production With Umbu (Spondias tuberosa) Using Conventional and Nonconventional Yeast

open access: yesJournal of Food Science, Volume 91, Issue 1, January 2026.
ABSTRACT This study evaluated the fermentation performance and bioactive properties of beers produced by Pichia kluyveri L131 and commercial Saccharomyces pastorianus, individually and in coculture, in wort enriched with umbu pulp. Fermentation profiles were assessed over 12 days, focusing on yeast population dynamics, carbohydrate consumption, and ...
Diego Pádua de Almeida   +10 more
wiley   +1 more source

The Magnetopause Boundary [PDF]

open access: yes
In this activity students explore in a quantitative way, how the distance to the bowshock balance point depends on the solar wind pressure acting on the Earth's magnetic field.
Sten Odenwald
core  

Transfer Hydrogenation: Advances in Manganese and Nickel Metal Catalysis

open access: yesJournal of Chemistry, Volume 2026, Issue 1, 2026.
Transfer hydrogenation (TH) of ketones, catalyzed by transition–metal complexes, produces alcohols, which are important building blocks in the pharmaceutical and fine chemical industries. For a long time, catalysts based on noble metals such as ruthenium, rhodium, and iridium have dominated the TH of ketones.
James Kamau   +3 more
wiley   +1 more source

Evidence from human and animal studies: Pathological roles of CD8+ T cells in autoimmune peripheral neuropathies

open access: yesFrontiers in Immunology, 2015
Autoimmune peripheral neuropathies such as Guillain Barre Syndrome (GBS) and chronic inflammatory demyelinating polyneuropathy (CIDP) affect millions of people worldwide.
Mu eYang   +7 more
doaj   +1 more source

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