Results 91 to 100 of about 148,659 (287)

A new survey of cool supergiants in the Magellanic Clouds [PDF]

, 2015
In this study, we conduct a pilot program aimed at the red supergiant population of the Magellanic Clouds. We intend to extend the current known sample to the unexplored low end of the brightness distribution of these stars, building a more ...
Dorda, Ricardo, González-Fernández, Carlos, Marco, Amparo, Negueruela, Ignacio   +3 more
core   +3 more sources

Built‐In Interfacial Electric Field in Hydroxyl‐Terminated MXene/COF Heterostructures for Enhanced Solid‐State Supercapacitors

Advanced Functional Materials, EarlyView.
Hydroxyl‐terminated MXene is integrated with a redox‐active covalent organic framework through electrostatic self‐assembly followed by hydrothermal treatment to construct MXene/COF heterostructures with a built‐in interfacial electric field. Termination‐controlled interfacial electronic modulation induces charge redistribution and favorable band ...
Cheru Fekadu Molla, Birhanu Bayissa Gicha, Boka Fikadu Banti, Indra Memdi Khoris, Jaebeom Lee   +4 more
wiley   +1 more source

Observations of ULIRGs with the IRS on Spitzer [PDF]

, 2009
Ultraluminous Infrared Galaxies (ULIRGs), those systems with L_(IR) ≥ 10^(12)L_⊙, have the power output of quasars, yet (re-)emit the vast majority of their energy in the far-infrared part of the spectrum.
Armus, L.
core  

Infrared Spectral Energy Distributions of Seyfert Galaxies: Spitzer Space Telescope Observations of the 12 micron Sample of Active Galaxies [PDF]

, 2008
The mid-far-infrared spectral energy distributions (SEDs) of 83 active galaxies, mostly Seyfert galaxies, selected from the extended 12 micron sample are presented.
A. Robinson, A. Yzaguirre, Alexander, Alexander, Allington-Smith, Alloin, Alonso-Herrero, Antonucci, Aretxaga, Baum, C. L. Buchanan, C. P. O'Dea, Clavel, Clavel, Coziol, D. J. Axon, de Grijp, Dewangan, Fazio, Feldmeier, Gallimore, Giannuzzo, González Delgado, González Delgado, Hao, Hao, Heckman, Ho, Houck, Hunt, Hunt, Inglis, J. F. Gallimore, J. Jakoboski, Kemper, Kester, Kewley, Kollatschny, Kollatschny, Levenson, M. Elitzur, M. Elvis, M. J. Stevenosky, Madore, Makovoz, Makovoz, Marshall, Moran, Moustakas, Nagar, Nenkova, Nenkova, Nenkova, Ossenkopf, Osterbrock, Peterson, Phillips, Regan, Rieke, Risaliti, Risaliti, Rush, S. A. Baum, Sirocky, Smith, Spinoglio, Spoon, Sturm, Sturm, Taylor, Tran, Tran, Tully, Winkler, Winkler, Wu, Young   +76 more
core   +4 more sources

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

Advanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim, Gayoung Seo, Seong Yeon Park, Juwon Jang, Yunho Ahn, Samiksha Mukesh Jain, Samrat Das Adhikari, Harumi Correa‐Leiva, Ignacio Utreras‐Asenjo, Oscar A. Douglas‐Gallardo, Carina Pareja‐Rivera, Kayoung Cho, Byeongsung Kim, Jhonatan Rodriguez‐Pereira, Eunseo Choi, JaeHong Park, Jin Ho Bang, Danilo H. Jara‐Quinteros, Sixto Giménez, Seog Joon Yoon, Andrés F. Gualdrón‐Reyes, Iván Mora‐Seró   +21 more
wiley   +1 more source

Infrared spectroscopic diagnostics for Active Galactic Nuclei

, 2007
Infrared spectroscopy in the mid- and far-infrared provides powerful diagnostics for studying the emission regions in active galaxies. The large variety of ionic fine structure lines can probe gas conditions in a variety of physical conditions, from ...
Spinoglio, Luigi
core   +1 more source

Soil Classification Via Mid-infrared Spectroscopy [PDF]

, 2008
The need for rapid and inexpensive techniques for soil characterization has led to the investigation of modern technologies, and in particular those based on reflectance spectroscopy. While near-infrared has been traditionally used, midinfrared in the 400-4000 cm-1 range is becoming increasingly common due to the specificity of the absorbance bands in ...
openaire   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

Quantum Cascade Laser Frequency Combs

Nanophotonics, 2016
It was recently demonstrated that broadband quantum cascade lasers can operate as frequency combs. As such, they operate under direct electrical pumping at both mid-infrared and THz frequencies, making them very attractive for dual-comb spectroscopy ...
Faist Jérôme, Villares Gustavo, Scalari Giacomo, Rösch Markus, Bonzon Christopher, Hugi Andreas, Beck Mattias   +6 more
doaj   +1 more source

Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review

Advanced Healthcare Materials, EarlyView.
Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro, Mario González‐Quintas, Mónica Fernández‐Arias, Jesús del Val, Félix Quintero, Rafael Comesaña, Fernando Lusquiños, Julian R. Jones, Juan Pou   +8 more
wiley   +1 more source