Results 61 to 70 of about 912 (205)
On Efficient "Time Travel" in Gödel Spacetime [PDF]
, 2010 Here, we show that one may "time travel" in Gödel spacetime with less total acceleration than was previously known. This answers a question posed by Malament (1985, 1986, 1987)
Manchak, John Byron, John Byron Manchak
core +1 more source
Computational study of permeability in cardboard coating layers
AIChE Journal, Volume 72, Issue 7, July 2026.Abstract We develop a virtual material structure model based on a combination of tessellations and Gaussian random fields for a coating layer of paperboard used for packaging and designed to facilitate printing on the surface. To fit the model to tomographic image data acquired using combined focused ion beam and scanning electron microscopy (FIB‐SEM),
Sandra Barman +6 more
wiley +1 more source
Beyond Average Hive Performance: Tail Risk Measurement in Italian Apiculture With Honey‐at‐Risk
Environmetrics, Volume 37, Issue 5, July 2026.ABSTRACT This paper provides a framework for measuring honey‐production risk that complements standard mean‐based analyses by explicitly targeting downside tail risk. Using hive‐weight data from a large sample of Italian hives over the period 2021–2024, downside tail risk is quantified through the Honey‐at‐Risk (HaR) metric, defined as the quantile of ...
Alessio Brini +3 more
wiley +1 more source
Role of Volcano‐Tectonic Interactions During Early‐Phase Magma‐Assisted Continental Rifting
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.Abstract We study volcanic‐tectonic interactions during the early phase of rifting in the Natron Rift, a magmatic segment of the East African Rift System. We use the open‐source crustal deformation modeling code, PyLith, to model deflation during the 2007–2008 explosive eruptions and inflation during 2016–2023.
Ntambila Daud +5 more
wiley +1 more source
Homogeneous geodesics in the flag manifold SO(2l+1)/U(l-m)×SO(2m+1)
, 2008 A geodesic curve in a Riemannian homogeneous manifold (M=G/K,g) is called a homogeneous geodesic if it is an orbit of an one-parameter subgroup of the Lie group G.
Arvanitoyeorgos, Andreas
core +1 more source
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract The Maritime Continent (MC) has undergone rapid deforestation in recent decades, altering its land‐atmosphere energy balance. Using idealized Community Earth System Model simulations, we examined heat extremes under progressively increasing deforestation extents, from localized coastal clearing to complete forest removal.
Ting‐Hui Lee +4 more
wiley +1 more source
Low Abundances of Ultramafic Components in the Chang'e‐6 Landing Site Basalt and Ejecta Material
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract The South Pole‐Aitken (SPA) Basin, the Moon's largest impact structure, holds key insights into lunar evolution, prompting the Chang'e‐6 mission to return first samples for ground‐truth verification. Analysis of over 6,000 grains from the Chang'e‐6 soil returned from the SPA Basin reveals a composition dominated by clinopyroxene (26.5–32.9 vol.
Zhenbing She +20 more
wiley +1 more source
ON THE EXISTENCE AND EXAMPLES OF HOMOGENEOUS GEODESICS IN GENERALIZED m-KROPINA SPACE [PDF]
In this paper, we find a necessary and sufficient condition for a non-zero vector to be a geodesic vector in homogeneous generalized m-Kropina space. Further, we prove the existence of at least one homogeneous geodesic.
Piscoran, Laurian-Ioan +3 more
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Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract Wintertime open‐ocean convection is a key process in renewing deep water; however, the processes that promote convection on local scale remain poorly understood. We investigate the role of long‐lived anticyclonic eddies in facilitating deep convection in the Greenland Sea using a new model simulation and observations.
Dong Jian +3 more
wiley +1 more source
, 2011 International audienceThe aim of this survey is to review the results of Phong-Sturm and Berndtsson on the convergence of Bergman geodesics towards geodesic segments in the space of positively curved metrics on an ample line bundle.
Keller, Julien, +5 more
core +1 more source