Results 91 to 100 of about 237,968 (300)

Modeling General Asymptotic Calabi–Yau Periods

open access: yesFortschritte der Physik, EarlyView.
Abstract In the quest to uncovering the fundamental structures that underlie some of the asymptotic Swampland conjectures the authors initiate the general study of asymptotic period vectors of Calabi–Yau manifolds. The strategy is to exploit the constraints imposed by completeness, symmetry, and positivity, which are formalized in asymptotic Hodge ...
Brice Bastian   +2 more
wiley   +1 more source

Novel Techniques for Void Filling in Glacier Elevation Change Data Sets

open access: yesRemote Sensing, 2020
The increasing availability of digital elevation models (DEMs) facilitates the monitoring of glacier mass balances on local and regional scales. Geodetic glacier mass balances are obtained by differentiating DEMs.
Thorsten Seehaus   +4 more
doaj   +1 more source

On the impact of observation‐error correlations in data assimilation, with application to along‐track altimeter data

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
We study the impact of observation‐error correlations in data assimilation using both a simple idealised system and a more realistic configuration. A spectral analysis of data assimilation in the idealised system allows us to gain insights on the effect of observation‐error correlations, which are then validated using the realistic configuration.
Olivier Goux   +4 more
wiley   +1 more source

Robust Photonic Quantum Gates With A Large Number of Waveguide Segments

open access: yesAdvanced Quantum Technologies, EarlyView.
This study investigates segmented waveguide designs for photonic quantum gates, extending existing composite approaches to a large number of segments. Through numerical simulations, the work analyzes fidelity, power loss, and the effect of noise correlations.
Khen Cohen, Haim Suchowski, Yaron Oz
wiley   +1 more source

Alpine greening deciphered by forest stand and structure dynamics in advancing treelines of the southwestern European Alps

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Multidecadal satellite observations, like those from Landsat, enable the study of vegetation greenness trends at extensive spatial and temporal scales. Alpine ecosystems show significant increases in vegetation greenness, but the ecological processes driving this greening are less understood.
Arthur Bayle   +5 more
wiley   +1 more source

Woody cover and geology as regional‐scale determinants of semi‐arid savanna stability

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Savannas are vital for global biodiversity and carbon storage, yet their responses to climate change and human activity remain uncertain. Using remote sensing time series and Bayesian Linear Models, we show that drought resistance and resilience vary regionally, shaped by complex interactions between geology, woody cover, fire regimes, past climate ...
Liezl Mari Vermeulen   +5 more
wiley   +1 more source

Experimental behavior of shear deficient RC beams strengthened with CFRP strips against reversible cyclic earthquake load

open access: yesStructural Concrete, EarlyView.
Abstract This study aims to prevent sudden and brittle shear failures in reinforced concrete beams, which are frequently caused by deficiencies in shear reinforcement. Following the Kahramanmaraş earthquakes in Turkey on February 6, 2023, inspections revealed that many reinforced concrete beams suffered severe damage due to design errors, high shear ...
Ömer Mercimek   +6 more
wiley   +1 more source

Investigations on the shear load‐bearing behavior of functionally graded concrete beams with mineral hollow spheres

open access: yesStructural Concrete, EarlyView.
Abstract The technology of functionally graded concrete (FGC) enables a significant reduction in the mass of concrete components while maintaining all structural and functional requirements through a targeted design of the interior of components. The present work deals with the principle of meso‐gradation, where spherical mineral hollow bodies are ...
Benedikt Strahm   +2 more
wiley   +1 more source

Multiparametric modeling of infill shear walls with additionally made openings

open access: yesStructural Concrete, EarlyView.
Abstract The paper deals with the implementation of additional openings in reinforced concrete infill shear walls from the point of view of structural analysis. In the introductory part, the current state of knowledge in the methods of analysis of this issue is discussed, and their advantages or shortcomings are pointed out.
Ondřej Šimek, Miloš Zich
wiley   +1 more source

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