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Darcy-Bénard-Bingham convection
D A S Rees
Aug 31, 2020
The present paper is the first to consider Darcy–Bénard–Bingham convection. A Bingham fluid saturates a horizontal porous layer that is subjected to heating from below. It is shown that this simple extension to the classical...
Darcy-Bénard-Bingham convection
D A S Rees
Aug 31, 2020
The present paper is the first to consider Darcy–Bénard–Bingham convection. A Bingham fluid saturates a horizontal porous layer that is subjected to heating from below. It is shown that this simple extension to the classical...
Bird Evolution
Daniel J Field
Feb 22, 2019
New fossils help pinpoint when some birds started relying on a seed-based diet and reveal that disparate bill shapes evolved repeatedly throughout bird evolutionary history.
Three-dimensional convective planforms for inclined Darcy-Bénard convection.
We investigate the onset of convection in an inclined Darcy-Bénard layer. When such a layer is unbounded in the spanwise direction it is generally known that longitudinal rolls comprise the most unstable planform. On the other...
Pattern selection for Darcy-Bénard convection with local thermal nonequilibrium
A weakly nonlinear analysis is performed on the classical Darcy-Bénard problem to determine the effects of local thermal nonequilibrium on the planform of convection immediately post-onset. It is found that two-dimensional rolls...
The Bird That Flew Backwards
Robin Gow
Jan 01, 0001
The Bird that Flew Backwards examines women poets from literary Modernism in the 1910s and Beat culture in the 1950s. Analyzing these eras in tandem reveals contrasting historical constructions of American womanhood and how...
modernism Beat movement Bohemian Greenwich Village Suffrage women's rights Elise Cowen Mina Loy Diane di Prima American Studies Arts and Humanities Digital Humanities English Language and Literature Feminist, Gender, and Sexuality Studies Lesbian, Gay, Bisexual, and Transgender Studies Other Feminist, Gender, and Sexuality Studies
Published by: Ursinus College
Pattern selection for Darcy-Bénard convection with local thermal nonequilibrium
A weakly nonlinear analysis is performed on the classical Darcy-Bénard problem to determine the effects of local thermal nonequilibrium on the planform of convection immediately post-onset. It is found that two-dimensional rolls...
Three-dimensional convective planforms for inclined Darcy-Bénard convection.
We investigate the onset of convection in an inclined Darcy-Bénard layer. When such a layer is unbounded in the spanwise direction it is generally known that longitudinal rolls comprise the most unstable planform. On the other...
Thomas and Bird Tapped for University's Teaching Awards
Winthrop University
Jan 01, 0001
Marketing Professor Jane Thomas will receive the Kinard Award for teaching. English Professor John Bird will serve as the Thompson Scholar to help teach critical thinking.
Published by: Winthrop University
Simulation-based reconstruction of global bird migration over the past 50,000 years.
Marius Somveille, Martin Wikelski, Robert M Beyer, Ana S L Rodrigues, Andrea Manica, Walter Jetz
Mar 25, 2020
Migration is a widespread response of birds to seasonally varying climates. As seasonality is particularly pronounced during interglacial periods, this raises the question of the significance of bird migration during past...
Published by: Nature Communications
English Professor John Bird Discovers Never-Before-Published Mark Twain Children's Story
Winthrop University
Jan 01, 0001
Called "The Purloining of Prince Oleomargarine," it is the story of a young boy who eats a flower sprouted by a magical seed and gains the ability to talk to animals. Bird said he spotted Twain's notes on the story while...
Published by: Winthrop University
Simulation-based reconstruction of global bird migration over the past 50,000 years.
Marius Somveille, Martin Wikelski, Robert M Beyer, Ana SL Rodrigues, Andrea Manica, Walter Jetz
Mar 30, 2020
Migration is a widespread response of birds to seasonally varying climates. As seasonality is particularly pronounced during interglacial periods, this raises the question of the significance of bird migration during past...
Horizontal cellular oscillations caused by time-periodic resonant thermal forcing in weakly nonlinear Darcy-Bénard convection
The onset of Rayleigh-Bénard convection in a horizontally unbounded saturated porous medium is considered. Particular attention is given to the stability of weakly nonlinear convection between two plane horizontal surfaces...
Riparian reserves help protect forest bird communities in oil palm dominated landscapes
Conversion of forest to oil palm agriculture is a significant and ongoing threat to tropical biodiversity. Despite this, little is known about the value of riparian reserves in oil palm and how these conservation set‐asides...
Horizontal cellular oscillations caused by time-periodic resonant thermal forcing in weakly nonlinear Darcy-Bénard convection
The onset of Rayleigh-Bénard convection in a horizontally unbounded saturated porous medium is considered. Particular attention is given to the stability of weakly nonlinear convection between two plane horizontal surfaces...
Mortality cost of sex-specific parasitism in wild bird populations
Jose O. Valdebenito, András Liker, Naerhulan Halimubieke, Jordi Figuerola, Tamas Szekely
Dec 02, 2020
Sex-specific mortality is frequent in animals although the causes of different male versus female mortalities remain poorly understood. Parasitism is ubiquitous in nature with widespread detrimental effects to hosts, making...
Molecular exploration of fossil eggshell uncovers hidden lineage of giant extinct bird.
Alicia Grealy, Gifford H Miller, Matthew J Phillips, Simon J Clarke, Marilyn Fogel, Diana Patalwala, Paul Rigby, Alysia Hubbard, Beatrice Demarchi, Matthew Collins, Meaghan Mackie, Jorune Sakalauskaite, Josefin Stiller, Julia A Clarke, Lucas J Legendre, Kristina Douglass, James Hansford, James Haile, Michael Bunce
Mar 31, 2023
The systematics of Madagascar's extinct elephant birds remains controversial due to large gaps in the fossil record and poor biomolecular preservation of skeletal specimens. Here, a molecular analysis of 1000-year-old fossil...
Published by: Nature Communications
Mortality cost of sex-specific parasitism in wild bird populations
Jose O. Valdebenito, András Liker, Naerhulan Halimubieke, Jordi Figuerola, Tamas Szekely
Dec 02, 2020
Sex-specific mortality is frequent in animals although the causes of different male versus female mortalities remain poorly understood. Parasitism is ubiquitous in nature with widespread detrimental effects to hosts, making...
On the maintenance of bird song dialects
Many bird species, especially song birds but also for instance some
hummingbirds and parrots, have noted dialects. By this we mean that locally a particular song is sung by the majority of the birds, but that neighbouring...
hummingbirds and parrots, have noted dialects. By this we mean that locally a particular song is sung by the majority of the birds, but that neighbouring...
Hexagonal Cell Formation in Darcy–Bénard Convection with Viscous Dissipation and Form Drag
Recent interest in the effects of viscous dissipation on convective flows in porous media has centred almost exclusively on forced convection flows. In this paper, we investigate the manner in which it affects the onset and...
On the maintenance of bird song dialects
Many bird species, especially song birds but also for instance some
hummingbirds and parrots, have noted dialects. By this we mean that locally a particular song is sung by the majority of the birds, but that neighbouring...
hummingbirds and parrots, have noted dialects. By this we mean that locally a particular song is sung by the majority of the birds, but that neighbouring...
Lead ammunition residues in a hunted Australian grassland bird, the stubble quail (Coturnix pectoralis)
Jordan O Hampton, Heath Dunstan, Simon D Toop, Jason S Flesch, Alessandro Andreotti, Deborah J Pain
May 22, 2022
Scavenging and predatory wildlife can ingest lead (Pb) from lead-based ammunition and become poisoned when feeding on shot game animals. Humans can similarly be exposed to ammunition-derived lead when consuming wild-shot game...
Hexagonal Cell Formation in Darcy–Bénard Convection with Viscous Dissipation and Form Drag
Recent interest in the effects of viscous dissipation on convective flows in porous media has centred almost exclusively on forced convection flows. In this paper, we investigate the manner in which it affects the onset and...
On the stability of the isoflux Darcy–Bénard problem with a generalised basic state
The scope of this study is to determine the conditions for the onset of the instability in a horizontal porous layer subject to isoflux boundary conditions and with an infinitely wide single–cell basic flow. When the...
Hadley flow Natural convection porous medium Pseudo-spectral method Rayleigh number Stability analysis /dk/atira/pure/subjectarea/asjc/3100/3104 name=Condensed Matter Physics /dk/atira/pure/subjectarea/asjc/2200/2210 name=Mechanical Engineering /dk/atira/pure/subjectarea/asjc/1500/1507 name=Fluid Flow and Transfer Processes
On the stability of the isoflux Darcy–Bénard problem with a generalised basic state
The scope of this study is to determine the conditions for the onset of the instability in a horizontal porous layer subject to isoflux boundary conditions and with an infinitely wide single–cell basic flow. When the...
Hadley flow Natural convection porous medium Pseudo-spectral method Rayleigh number Stability analysis /dk/atira/pure/subjectarea/asjc/3100/3104 name=Condensed Matter Physics /dk/atira/pure/subjectarea/asjc/2200/2210 name=Mechanical Engineering /dk/atira/pure/subjectarea/asjc/1500/1507 name=Fluid Flow and Transfer Processes
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