Results 61 to 70 of about 1,003 (174)

On the Influence of Mineral Dust on Glacial Albedo at Nevado Huascarán (Cordillera Blanca, Peru)

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract In addition to warming and hydrological changes, glacier retreat is influenced by mineral dust and other light absorbing impurities. However, very little is known about the presence of mineral dust in the tropical Andes, making it difficult to model the radiative impact of dust on glacial surfaces.
Austin M. Weber, Emilie Beaudon, M. Roxana Sierra‐Hernández, Mary Davis, Don Kenny, Tal Y. Shutkin, Lonnie G. Thompson   +6 more
wiley   +1 more source

Numerical simulation of microstructural damage and tensile strength of snow [PDF]

Geophysical Research Letters, 2014
This contribution uses finite‐element analysis to simulate microstructural failure processes and the tensile strength of snow. The 3‐D structure of snow was imaged by microtomography. Modeling procedures used the elastic properties of ice with bond fracture assumptions as inputs.
Hagenmuller, P., Theile, T.C., Schneebeli, M.   +2 more
openaire   +3 more sources

Microporous Microgel Assemblies Facilitating the Recruitment and Osteogenic Differentiation of Progenitor Cells for Bone Regeneration

Advanced Functional Materials, Volume 36, Issue 31, 16 April 2026.
There is a significant need for biomaterials with well‐defined stability and bioactivity to support tissue regeneration. In this study, we developed a tunable microgel platform that enables the decoupling of stiffness from porosity, thereby promoting bone regeneration.
Silvia Pravato, Haishuo Guan, Bianca M. Carrara, Mira Jacobs, Matteo Monticelli, Lukas Moser, Thomas Moragues, Andrew J. deMello, Tomaso Zambelli, Martin Ehrbar   +9 more
wiley   +1 more source

Effect of Surface‐Lubricant Compatibility on Bubble Formation in Lubricant‐Infused Surfaces

Advanced Materials Interfaces, Volume 13, Issue 8, 21 April 2026.
Lubricant‐infused surfaces reduce drag partly through bubbles that form when lubricant depletes. Using laser‐textured steel infused with silicone oil, we show that microbubble nucleation occurs even on surfaces fully wetted by the lubricant, regardless of chemistry.
Leo James, Isaac J. Gresham, Georg Schnell, Hermann Seitz, Chiara Neto   +4 more
wiley   +1 more source

Ice Spheres as Model Snow: Tumbling, Sintering, and Mechanical Tests

Frontiers in Earth Science, 2019
The snow microstructure is crucial for the mechanical behavior of snow, but is usually simplified in numerical models. In Discrete Element Models (DEM), often used in snow mechanics, the microstructure is typically represented by sphere assemblies.
Carolin Willibald, Sophia Scheuber, Henning Löwe, Jürg Dual, Martin Schneebeli   +4 more
doaj   +1 more source

Microorganisms Associated With Dust on Alpine Snow

Frontiers in Earth Science, 2020
We investigated snow microstructure and microbial composition from snow samples collected from western Colorado, a region that experiences frequent dust-on-snow deposition events.
Zoe R. Courville, Ross M. Lieblappen, Ross M. Lieblappen, Alison K. Thurston, Robyn A. Barbato, John M. Fegyveresi, John M. Fegyveresi, Lauren B. Farnsworth, Jeff Derry, R. M. Jones, Stacey J. Doherty, Shelby A. Rosten   +11 more
doaj   +1 more source

Combining the Pitcher and Lotus Plant: Supericephobic and Superhydrophobic Silicone Films

Advanced Science, Volume 13, Issue 23, 23 April 2026.
Based on bench‐top nanomolding of polydimethylsiloxane (PDMS) with optimized silicone oil content, we developed hierarchically structured silicone films by essentially combining the properties of the lotus and pitcher plant; particularly we are able to achieve water contact angle as high as 171° and ice adhesion strength as low as 11.5 kPa (i.e ...
Cliff L. W. Ng, Joshua Ham, Sanpreet Kaur, Clayton W. Schultz, Hua‐Zhong Yu   +4 more
wiley   +1 more source

Measurement of snow density and microstructure using computed tomography [PDF]

Journal of Glaciology, 2002
AbstractIn the past, two-dimensional images of internal snow structure have been obtained through plane surface sections or thin sections. These techniques are time-consuming and necessarily destroy the snow specimen. Computed tomography (CT) allows similar images to be obtained, but in a more efficient and non-destructive manner.
Chris C. Lundy, Michael Q. Edens, Robert L. Brown   +2 more
openaire   +1 more source

Microstructure-based modelling of snow mechanics: experimental evaluation of the cone penetration test [PDF]

The Cryosphere
Snow is a complex porous material presenting a variety of microstructural patterns. This microstructure largely controls the mechanical properties of snow, although the relation between the micro and macro properties remains to be better understood ...
C. Herny, C. Herny, P. Hagenmuller, G. Chambon, I. Peinke, J. Roulle   +5 more
doaj   +1 more source

Fluorescently Labeled Gradient Hydrogels Reveal Matrix‐Dependent Cell Responses to Substrate Stiffness

Small, Volume 22, Issue 20, 7 April 2026.
This work demonstrates a new thermophoretic strategy to fabricate fluorescently labeled stiffness gradient hydrogels, enabling contactless stiffness characterization. Fibroblasts cultured on gradient GelMA and Gellan gum hydrogels revealed distinct cell morphology and migration behavior.
Shin Wei Chong, Li Liu, Daryan Kempe, Yingqi Zhang, Kourosh Kalantar‐Zadeh, Marcela M. M. Bilek, Lining Arnold Ju, Maté Biro, Daniele Vigolo   +8 more
wiley   +1 more source