Results 121 to 130 of about 16,494 (299)

Existence and non-existence of half-geodesics on S2

open access: yes, 2016
In this paper we study half-geodesics, those closed geodesics that minimize on any subinterval of length l(γ)/2. For each nonnegative integer n, we construct Riemannian manifolds diffeomorphic to S2 admitting exactly n half-geodesics.
Ian Adelstein
core  

An Elasto–Plastic Hydro–Mechanical Model for Analyzing the Swelling Behavior of Heterogeneous Clay–Sulfate Rocks

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Swelling of clay‐sulfate rocks is a concern in geotechnical engineering that can damage infrastructure. In the historic town of Staufen in southwest Germany, geothermal drilling into a swellable anhydrite‐bearing clay formation resulted in water inflow and subsequent swelling, triggering ground heave and damage to more than 250 houses.
Reza Mahmoudi Kouhi   +4 more
wiley   +1 more source

Home and away: allometry and climate drive morphology of European rabbits in their native and introduced range

open access: yesOikos, EarlyView.
Climatic conditions shape phenotypic evolution by driving adaptations that optimise organismal function. Invasive species provide valuable systems to study these processes, as they often encounter novel climatic conditions in their introduced ranges. The European rabbit Oryctolagus cuniculus, native to the Iberian Peninsula, has established populations
Rishab Pillai   +11 more
wiley   +1 more source

Rewilding's technological experiments: Virtual reality and scalable narratives of rewilding in the Scottish highlands

open access: yesPeople and Nature, EarlyView.
Abstract Depictions of rewilded landscapes reveal the underlying principles shaping the future of rewilding. This paper analyses a virtual reality (VR) model of a rewilding project in the Scottish Highlands that is advertised as a vision of a rewilded nature in 50 to 100 years' time.
Nick Sidwell
wiley   +1 more source

Main‐chain polyfullerenes: Taking fullerene to the next dimension

open access: yesPolymer International, EarlyView.
This short review appraises main‐chain polyfullerenes. Their slow development over 30 years has suddenly boomed with a rapid growth due to exciting developments in solar energy. Abstract This mini‐review gives an overview of the development, chemistry, properties and applications of main‐chain polyfullerenes.
Marco Antônio GB Gomes   +4 more
wiley   +1 more source

"Corrigendum: Dense array EEG source estimation in neocortical epilepsy."

open access: yesFrontiers in Neurology, 2013
Madoka eYamazaki   +6 more
doaj   +1 more source

The Long Trajectory of Rubber Physics: 3500+ Years and Counting

open access: yesJournal of Polymer Science, EarlyView.
Natural rubber's trajectory is traced from Mesoamerican use of Castilla elastica through vulcanization and the pneumatic tire to macromolecular physics and modern solid‐state refrigeration. Illustrations of C. elastica and an H. brasiliensis plantation frame the historical progression from indigenous material, then industrial crop and on to advanced ...
Gregory B. McKenna
wiley   +1 more source

Geodesics in Sub-Riemannian Geometry

open access: yes
This thesis investigates the fundamental ideas and comparative structure of Riemannian and sub- Riemannian geodesics, the curves that locally minimise length.
Fazil, Adnan
core   +1 more source

No Passing Zone (Redux): Horizon Chasing in Evaporating Black Holes via Ingoing Vaidya Coordinates

open access: yesReports in Advances of Physical Sciences
This analysis extends our previous work [R. J. Beery, ‘The Heretical Physicist: Revisiting Einstein’s Objection to the Event Horizon, Rep. Adv. Phys. Sci.
Rhoderick J. Beery
doaj   +1 more source

Geodesics in Margulis spacetimes

open access: yes, 2011
Let M³ be a Margulis spacetime whose associated complete hyperbolic surface 62 has a compact convex core. Generalizing the correspondence between closed geodesics on M³ and closed geodesics on 62, we establish an orbit equivalence between recurrent ...
Labourie, François   +4 more
core   +1 more source

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