Results 151 to 160 of about 3,556 (304)

Laplace‐Pressure‐Stabilized Rutile Solid‐Solution Catalysts for Acidic Water Oxidation: Enabling DSA‐Inspired Compositions

Advanced Materials, EarlyView.
The miscibility of foreign elements in rutile‐type IrO2 and SnO2 is greatly enhanced under high Laplace pressure, where their crystal size is reduced to the nanoscale. This enhancement leads to the successful synthesis of DSA‐composition solid‐solution nanocatalysts with notable durability during the acidic OER in water electrolysis.
Chang Hyun Park, Juneseo Ahn, Dongho Kim, Hyeonsoo Wi, Ki Hyun Park, Jun Seop Kim, Sangmyeong Lee, Sung‐Yoon Chung   +7 more
wiley   +1 more source

Advancing Lithium–Oxygen Batteries: Pioneering Cathode Catalyst Innovation and Artificial Intelligence‐Driven Design Paradigms

Advanced Materials, EarlyView.
This review summarizes the principles and challenges of nonaqueous lithium‐oxygen batteries and recent advances in cathode catalysts, including carbon‐based materials, metals, oxides, sulfides, nitrides, carbides, and redox mediators. It highlights emerging design strategies and artificial intelligence‐driven approaches, emphasizing data‐assisted ...
Yuqing Yao, Chongyang Hao, Karol Viviana Mejia‐Centeno, Malik Dilshad Khan, Shang Wang, Longqiu Li, Yanhong Tian, Andreu Cabot, Qing Sun   +8 more
wiley   +1 more source

The Binary Fraction of Stars in the Dwarf Galaxy Ursa Minor via Dark Energy Spectroscopic Instrument

International audienceWe utilize multi-epoch line-of-sight velocity measurements from the Milky Way Survey of the Dark Energy Spectroscopic Instrument to estimate the binary fraction for member stars in the dwarf spheroidal galaxy Ursa Minor. Our dataset
Dey, Arjun, Myers, Adam D, Ahlen, Steven, Zou, Hu, Jimenez, Jorge, Poppett, Claire, Najita, Joan, Han, Jesse, Claybaugh, Todd, Meisner, Aaron, Qiu, Tian, Koposov, Sergey, Weaver, Benjamin Alan, Lamman, Claire, Allende Prieto, Carlos, Sprayberry, David, Tarlé, Gregory, Li, Songting, Brooks, David, Rockosi, Constance, Landriau, Martin, Wang, Wenting, Gontcho A. Gontcho, Satya, Han, Jiaxin, Rossi, Graziano, Miquel, Ramon, Kisner, Theodore, Pérez-Ràfols, Ignasi, Gaztañaga, Enrique, Silber, Joseph Harry, Percival, Will, Gaensicke, Boris, Nadathur, Seshadri, Font-Ribera, Andreu, Schlegel, David, Zhou, Rongpu, Prada, Francisco, Sandford, Nathan R, Gutierrez, Gaston, de la Macorra, Axel, Sanchez, Eusebio, Le Guillou, Laurent, Aguilar, Jessica Nicole, Joyce, Dick, Bianchi, Davide, Doel, Peter, Forero-Romero, Jaime E, Li, Ting S   +47 more
core   +2 more sources

NGTS-EB-8: A Double-lined Eclipsing M+M Binary Discovered by Citizen Scientists

The Astronomical Journal
We report the identification and characterization of a new binary system composed of two near-equal mass M-dwarfs. The binary NGTS-EB-8 was identified as a planet candidate in data from the Next Generation Transit Survey (NGTS) by citizen scientists ...
Sean M. O’Brien, Megan E. Schwamb, Christopher A. Watson, Louise D. Nielsen, Edward M. Bryant, Sarah L. Casewell, Matthew R. Burleigh, Lucy Fortson, Samuel Gill, Chris J. Lintott, Katlyn L. Hobbs, Ioannis Apergis, Daniel Bayliss, Jorge Fernández Fernández, Maximilian N. Günther, Faith Hawthorn, James S. Jenkins, Alicia Kendall, James McCormac, Ernst J. W. de Mooij, Toby Rodel, Suman Saha, Laura Trouille, Richard G. West, Peter J. Wheatley, Marius Constantin Agafitei, Deniz Rüzgar Apaydın, Elisabeth Baeten, Bruce Baller, Jeff Carabott, Sallyann Chesson, Sebastián Alejandro Freigeiro, Virgilio Gonano, Matthias Hanke, Pete Hermes, Avery Hildebrand, John S. Langley, See Min Lim, Leo Ryan McCarthy, Graham Mitchell, Ken O’Neill, Charles R. Pearson, Nolan Reket, Jeanne Riethmiller, Juergen Saeftel, Arttu Sainio, Charlie Steiner, Amanda Strickland, Christopher Tanner, Ivan A. Terentev, Ernest Jude P. Tiu, Sergey Y. Tumanov, Marciniak Urszula, Pia Vahlenkamp, Femke de Vroome, Paweł Wantuch, Timothy Woodruff   +56 more
doaj   +1 more source

Measurement of the Spectroscopic Binary Star Mizar with the Interferometer [PDF]

Proceedings of the National Academy of Sciences, 1925
openaire   +2 more sources

Carbon-enhanced metal-poor stars: effects of binary evolution at low metallicity

, 2006
Recent spectroscopic surveys have revealed a large number of extremely metal-poor stars in the Galactic halo. Many of these stars are being subjected to detailed spectroscopic analysis, and a surprisingly large fraction, about 25 %, turn out to be carbon-
Pols, O.R., Lamers, Henny J.G.L.M., Astrophysics, Izzard, R.G., Dep Natuurkunde, Sub Astrophysics begr 1/1/14   +5 more
core  

An abundance analysis of the single-lined spectroscopic binaries with barium stars-like orbital elements: II. The spectroscopic data [PDF]

, 1999
High-resolution spectroscopic observations are presented for 19 single-lined binaries (giants and dwarfs) with orbital elements and mass functions similar to those of barium stars, two radial velocity non-variable barium stars, and two standards.
Galazutdinov G., Musaev F., Alksnis O., Bikmaev I., Začs L.   +4 more
core  

Ultra‐High‐Throughput Discovery of Multifunctional Polyphenolic Coatings on Droplet Microarrays

Advanced Materials, EarlyView.
An ultra‐high‐throughput (UHT) combinatorial strategy enables the miniaturized synthesis and screening of ≈30 000 polyamine‐polyphenolic (PaPp) coatings using droplet microarrays (DMA). This approach reveals hundreds of previously unknown fluorescent, redox‐active, and antibacterial materials, including multifunctional, cell‐compatible surfaces ...
Vania Tanda Widyaya, Joaquín E. Urrutia Gómez, Paul Reuß, Alexander Welle, Rolf A. Gattung, Jana Mayer, Peter Krolla, Markus Reischl, Pascal Friederich, Anna A. Popova, Thomas Schwartz, Pavel A. Levkin   +11 more
wiley   +1 more source

Three-dimensional Orbit and Dynamical Masses of GJ 105 AC

The Astrophysical Journal
The precision of stellar models is higher than the precision at which we are able to measure the masses of most stars, with the notable exception of binaries where we can determine dynamical masses of the component stars.
Cayla M. Dedrick, Jason T. Wright, Jason D. Eastman, Cullen H. Blake, Samson A. Johnson, Peter Plavchan, John Asher Johnson, David H. Sliski, Maurice L. Wilson, Robert A. Wittenmyer, Thomas Barclay, Jonathan Horner, Stephen R. Kane, Sharon X. Wang   +13 more
doaj   +1 more source

Spectroscopic Analyses of subluminous B stars in binaries [PDF]

Proceedings of International Symposium on Nuclear Astrophysics - Nuclei in the Cosmos - IX — PoS(NIC-IX), 2010
Stephan Geier, C. Karl, H. Edelmann, Ulrich Heber, R. Napiwotzki   +4 more
openaire   +1 more source