Results 51 to 60 of about 25,535 (312)

The First Evidence of a Host Star Metallicity Cutoff in the Formation of Super-Earth Planets [PDF]

Planet formation is expected to be severely limited in disks of low metallicity, owing to both the small solid mass reservoir and the low-opacity accelerating the disk gas dissipation.
Wang, Ji, Bhure, Sakhee, Zink, Jon, Hopkins, Philip F. H, Fernandes, Rachel B., Lee, Eve J., Boley, Kiersten M., Christiansen, Jessie L., Bergsten, Galen J., Hardegree-Ullman, Kevin   +9 more
core   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Cold-mode accretion : driving the fundamental mass-metallicity relation at z ∼ 2

, 2016
We investigate the star formation rate (SFR) dependence on the stellar mass and gas-phase metallicity relation at z = 2 with MOSFIRE/Keck as part of the ZFIRE survey. We have identified 117 galaxies (1.98 10M(circle dot) yr(-1)) SFRs. At fixed mass, low
Tran, Kim-Vy H, Cowley, M., Glazebrook, Karl, Tomczak, A., Cowley, Michael, Spitler, Lee, Allen, R., Straatman, Caroline, Kacprzak, Glenn G., Allen, Rebecca J., Tran, K., Alcorn, .L., Kacprzak, G., Tomczak, Adam, Glazebrook, .K., Yuan, Tiantian, Yuan, T., Tran, Kim-Vy H., Nanayakkara, T., Kacprzak, Glenn G, Voort, F., Labbé, I.F.L., Spitler, L., Alcorn, Leo, Straatman, C.M.S., van de Voort, Freeke, Labbe, Ivo, Allen, Rebecca J, Nanayakkara, Themiya   +28 more
core   +1 more source

Chemical and kinematical evolution in nearby dwarf spheroidal galaxies [PDF]

, 2006
Dwarf spheroidal (dSph) galaxies are the least massive and luminous objects known to exist. These galaxies are often considered as the fossil building blocks of massive systems predicted by some cosmological models.
Koch, Andreas
core   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

Advanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

Metallic hydrogen [PDF]

Journal of Physics: Condensed Matter, 2018
Abstract Hydrogen is the simplest and most abundant element in the Universe. There are two pathways for creating metallic hydrogen under high pressures. Over 80 years ago Wigner and Huntington predicted that if solid molecular hydrogen was sufficiently compressed in the T   =
Ranga Dias, Isaac Silvera
openaire   +2 more sources

Composition‐Tuned Enhancement of the Anomalous Nernst Effect in FeCo–Pt Thin Films on Rigid and Flexible Substrates

Advanced Engineering Materials, EarlyView.
Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi, Hiroyuki Awano, Kenji Tanabe   +2 more
wiley   +1 more source

Properties and Occurrence Rates for Kepler Exoplanet Candidates as a Function of Host Star Metallicity from the DR25 Catalog [PDF]

, 2018
Correlations between the occurrence rate of exoplanets and their host star properties provide important clues about the planet formation processes. We studied the dependence of the observed properties of exoplanets (radius, mass, and orbital period) as a
Henning, Thomas, Mathew, Blesson, Mathew, B., Narang, Mayank, Henning, T., Mordasini, Christoph, Manoj, P., Mordasini, C., Narang, M., Banyal, Ravinder K., Furlan, E., Sivarani, T., Banyal, R.   +12 more
core   +1 more source

First‐Principles Design of Room Temperature Ferromagnetic Metallic Rare‐Earth Zintl Compounds AB2C2 (A = Ce, Pr, Nd; B = Li; C = Sb) for Next‐Generation Spintronic and Magneto‐Electronic Applications

ChemistryOpen
A comprehensive density functional theory (DFT) study investigates the structural, electronic, and magnetic properties of rare‐earth Zintl compounds AB2C2 (A = Ce, Pr, Nd; B = Li; C = Sb).
Hayat Ullah, Maria Jilani, Ashfaq Ahmad, Asif Mahmood, Sadia Yasin, Uzma Hameed, Akif Safeen, Basit Ali   +7 more
doaj   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source