Results 131 to 140 of about 225,051 (342)

A Termite‐Inspired Alternative to Cement

Advanced Functional Materials, EarlyView.
A termite‐inspired composite of clay, cellulose, and lignin forms a dense fibrous network with concrete‐like strength (32 MPa) and superior elasticity, processed at ambient temperature. Abstract Clay combined with organic materials is used by termites as a strong and durable construction material for their mounds with minimal environmental impact. Here,
Oren Regev, Peter Fratzl, Emeline Raguin, Markus Antonietti   +3 more
wiley   +1 more source

A dwarf galaxy remnant in Canis Major: the fossil of an in-plane accretion onto the Milky Way

, 2003
We present an analysis of the asymmetries in the population of Galactic M-giant stars present in the 2MASS All Sky catalogue. Several large-scale asymmetries are detected, the most significant of which is a strong elliptical-shaped stellar over-density ...
Abadi, Bedin, Bellazzini, Bellazzini, Bellazzini, Bellazzini, Burton, Chiba, Clementini, Dehnen, Dehnen, Dehnen, Dehnen, Ferguson, G. F. Lewis, Gómez-Flechoso, Harris, Helmi, Helmi, Helmi, Ibata, Ibata, Ibata, Ibata, Ibata, Ibata, M. Bellazzini, M. J. Irwin, Majewski, Martin, Mermilliod, N. F. Martin, Newberg, R. A. Ibata, Reylé, Rocha-Pinto, Schlegel, W. Dehnen, White, White, Yanny   +40 more
core   +1 more source

The Gaia–ESO Survey: Carbon Abundance in the Galactic Thin and Thick Disks^* [PDF]

, 2020
M. Franchini, C. Morossi, P. Di Marcantonio, M. Chávez, V. Adibekyan, A. Bayo, T. Bensby, A. Bragaglia, F. Calura, S. Duffau, A. Gonneau, U. Heiter, G. Kordopatis, D. Romano, L. Sbordone, R. Smiljanić, G. Tautvaišienė, M. Van der Swaelmen, E. Delgado Mena, Gerry Gilmore, S. Randich, G. Carraro, A. Hourihane, L. Magrini, L. Morbidelli, S. G. Sousa, C. C. Worley   +26 more
openalex   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

Advanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey, Arjen van den Berg, Sandra Ruiz Gomez, Claire Donnelly, Dirk Grundler, Sam Ladak   +5 more
wiley   +1 more source

The Emergence of the Thick Disk in a CDM Universe II: Colors and Abundance Patterns

, 2005
The recently emerging conviction that thick disks are prevalent in disk galaxies, and their seemingly ubiquitous old ages, means that the formation of the thick disk, perhaps more than any other component, holds the key to unravelling the evolution of ...
Brad K. Gibson, Chris B. Brook, Daisuke Kawata, Edvardsson B., Furhmann K., Gilmore G., Hugo Martel   +6 more
core   +2 more sources

Hercules stream stars and the metal-rich thick disk [PDF]

, 2006
T. Bensby, M. S. Oey, S. Feltzing, B. Gustafsson   +3 more
openalex   +1 more source

Stabilizing Cationic Palladium Single‐Atom Sites on Heteroatom‐Doped Carbon for Selective Hydrogen Peroxide Electrosynthesis

Advanced Functional Materials, EarlyView.
In this research, it is demonstrated that dual nitrogen and sulfur doping in hollow carbon spheres creates a tunable coordination environment that stabilizes cationic Pd single atoms as robust organometallic complexes, enabling high selectivity and stability for electrochemical hydrogen peroxide production under harsh acidic and peroxide‐rich ...
Guilherme V. Fortunato, Alexander Gunnarson, Hannaneh Hosseini, Xiangyu You, Pallabi Bhuyan, Ji Sik Choi, Hyo Sang Jeon, Xingshen Zhao, Julio C. Lourenço, Sumin Lim, Huize Wang, Ana Guilherme Buzanich, Martin Radtke, Paul Paciok, Marcos R.V. Lanza, Ferdi Schüth, Marc Ledendecker   +16 more
wiley   +1 more source

The Age–Velocity Dispersion Relations of the Galactic Disk as Revealed by the LAMOST-Gaia Red Clump Stars

The Astrophysical Journal
Using nearly 230,000 red clump stars selected from LAMOST and Gaia, we conduct a comprehensive analysis of the stellar age–velocity dispersion relations (AVRs) for various disk populations, within 5.0 ≤ R ≤ 15.0 kpc and ∣ Z ∣ ≤ 3.0 kpc.
Weixiang Sun, Han Shen, Biwei Jiang, Xiaowei Liu   +3 more
doaj   +1 more source

Models of disk chemical evolution focusing the pure dynamical radial mixing

EPJ Web of Conferences, 2012
We performed N-body simulations to study the dynamical evolution of a stellar disk inside a Dark Matter (DM) halo. Our results evidence how a standard -radially decreasing- metallicity gradient produces a negative vϕ vs.
Re Fiorentin P., Murante G., Lattanzi M.G., Spagna A., Curir A.   +4 more
doaj   +1 more source

Characterisation of the Galactic thick disk

, 2013
Thick disks appear to be common in external large spiral galaxies and our own Milky Way also hosts one. The existence of a thick disk is possibly directly linked to the formation history of the host galaxy and if its properties is known it can constrain ...
Bensby, Thomas
core   +1 more source