Results 71 to 80 of about 260,301 (310)

Designing Defect Structure and Interfacial Strain in an Epitaxial VN Bilayer Film by Tailoring N Concentration

Advanced Materials Interfaces, EarlyView.
The N concentration in an epitaxial VN bilayer is tailored from overstoichiometric V0.49N0.51 to understoichiometric V0.56N0.44. Based on ab initio, diffraction, and microscopy data, the overstoichiometric V0.49N0.51 layer contains V vacancies, N Frenkel pairs, and a high density of dislocations.
Marcus Hans, Damian M. Holzapfel, Zhuo Chen, Soheil Karimi Aghda, Michal Fečík, Daniel Primetzhofer, Zaoli Zhang, Jochen M. Schneider   +7 more
wiley   +1 more source

Structure and evolution of rotationally and tidally distorted stars

, 2009
This paper aims to study the configuration of two components caused by rotational and tidal distortions in the model of a binary system. The potentials of the two distorted components can be approximated to 2nd-degree harmonics.
Burša, Burša, Cantiello, Chan, Chandrasekhar, Charbonnel, Charbonnel, Charboyer, De Loore, Decressin, Denissenkov, Eggleton, Eggleton, Eggleton, Endal, Endal, Frankowski, H. F. Song, Han, Heger, Heger, Hilditch, Hofmeister, Huang, Huang, Huang, Huang, Jackson, Kippenhahn, Kippenhahn, Kopal, Kopal, Kähler, Landin, Langer, Langer, Langer, Langer, Li, Li, Li, Maeder, Maeder, Maeder, Maeder, Maeder, Mardirossian, Meynet, Meynet, Petrovic, Petrovic, Pinsonneault, Renvoizé, Rieutord, Soker, Talon, Tout, Van Hamme, Vanbeveren, von Zeipel, Y. Lu, Yoon, Z. Zhong, Zahn, Zahn, Zahn, Zahn, Zahn, Zickgraf   +68 more
core   +1 more source

High‐Transmission Mid‐Infrared Bandpass Filters using Hybrid Metal‐Dielectric Metasurfaces for CO2 Sensing

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This article presents a hybrid metal‐dielectric metasurface in transmission mode for mid‐infrared (MIR) spectroscopy. Composed of germanium on aluminium cylinders atop a calcium fluoride substrate, the metasurface achieves 80% transmission efficiency at λ = 2.6 µm with a narrow full‐width‐half‐maximum of 0.4 µm.
Amr Soliman, C Williams, Richard Hopper, Florin Udrea, Haider Butt, Timothy D. Wilkinson   +5 more
wiley   +1 more source

Could dementia be detected from UK primary care patients’ records by simple automated methods earlier than by the treating physician? A retrospective case-control study [version 1; peer review: 2 approved]

Wellcome Open Research, 2020
Background: Timely diagnosis of dementia is a policy priority in the United Kingdom (UK). Primary care physicians receive incentives to diagnose dementia; however, 33% of patients are still not receiving a diagnosis.
Elizabeth Ford, Johannes Starlinger, Philip Rooney, Seb Oliver, Sube Banerjee, Harm van Marwijk, Jackie Cassell   +6 more
doaj   +1 more source

A Dual‐Emissive DNA‐Templated Silver Nanocluster with Near‐Infrared I and II Emission

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This study presents a dual‐emissive DNA‐stabilized silver nanocluster with a nanosecond‐lived NIR‐I emission band and a microsecond‐lived NIR‐II emission band. Mass spectrometry establishes that the nanocluster has molecular formula (DNA)2[Ag17]11+. DNA sequence variations reveal critical nucleobases for stabilization, and modifications at the DNA 5 ...
Anna Gonzàlez‐Rosell, Vanessa Rück, Mikkel B. Liisberg, Cecilia Cerretani, Villads R. M. Nielsen, Tom Vosch, Stacy M. Copp   +6 more
wiley   +1 more source

Measuring CMB Polarization with BOOMERANG

, 2003
BOOMERANG is a balloon-borne telescope designed for long duration (LDB) flights around Antarctica. The second LDB Flight of BOOMERANG took place in January 2003. The primary goal of this flight was to measure the polarization of the CMB.
A Balbi, A Boscaleri, A de Oliveira-Costa, A Iacoangeli, A Melchiorri, A.E Lange, A.H Jaffe, B.P Crill, C MacTavish, C.B Netterfield, C.R Contaldi, Crill, D Pogosyan, E Hivon, E Pascale, E Torbet, F Nati, F Piacentini, G De Gasperis, G De Troia, G di Stefano, G Polenta, G Romeo, Hinshaw, J Borrill, J.E Ruhl, J.J Bock, J.R Bond, Jones, K Ganga, Kogut, Kovac, M Tegmark, Masi, Masi, Mason, N Vittorio, P Cabella, P de Bernardis, P Natoli, P.A.R Ade, P.D Mauskopf, S Masi, S Prunet, S Ricciardi, T Montroy, T.S Kisner, V.V Hristov, W.C Jones, Zaldarriaga   +49 more
core   +1 more source

Strong Proton‐Phonon Coupling Drives Fast Ion Transport in Perovskites

Advanced Science, EarlyView.
Experimental and computational phonon analysis of ABO3‐type proton conductor BaSnO3 shows that substitution on the B‐site with yttrium forms an imaginary phonon mode which is instrumental for the function as proton conductor. This overcompensates the adverse proton trapping effect of the yttrium.
Alexey Rulev, Nobumoto Nagasawa, Hongxin Wang, Vladimir Pomjakushin, Martin Kunz, Yoshitaka Yoda, Stephen P. Cramer, Qianli Chen, Artur Braun   +8 more
wiley   +1 more source

Imperfection in Semiconductors Leading to High Performance Devices

Advanced Science, EarlyView.
Crystalline perfection is typically pursued in semiconductors to enhance device performance. However, through modeling and experimental work, we show that defects can be strategically employed in a specific detection regime to increase sensitivity to extreme values. GaN diodes are demonstrated to effectively detect high‐energy proton beams at fluxes as
Jean‐Yves Duboz, Matilde Siviero, Lucas Lesourd, Eric Frayssinet, Sebastien Chenot, Petter Hofverberg, Sullivan Marafico, Marie Vidal, Maxime Hugues   +8 more
wiley   +1 more source

Metal‐Mediated Nitrogen Doping of Carbon Supports Boosts Hydrogen Production from Ammonia

Angewandte Chemie, EarlyView.
A virtuous catalytic cycle is established as the carbon support simultaneously tunes electron density and stores atomic nitrogen formed via Ru–N species during ammonia decomposition, resulting in self‐enhancing catalysis. Abstract Ammonia is an attractive hydrogen carrier, yet its practical use is limited by the need for efficient catalytic ...
Thomas J. Liddy, Benjamin J. Young, Emerson C. Kohlrausch, Andreas Weilhard, Gazi N. Aliev, Yifan Chen, Manfred E. Schuster, Mohsen Danaie, Luke L. Keenan, Donato Decarolis, Diego Gianolio, Siqi Wang, Mingming Zhu, Graham J. Hutchings, David M. Grant, Wolfgang Theis, Tien‐Lin Lee, David A. Duncan, Alberto Roldan, Andrei N. Khlobystov, Jesum Alves Fernandes   +20 more
wiley   +2 more sources

Galactic cosmic ray spectral measurements with the DAMPE space mission [PDF]

EPJ Web of Conferences
The space-based DAMPE (DArk Matter Particle Explorer) detector has been taking data since its successful launch in December 2015. Its main scientific goals include the indirect search for dark matter signatures in the cosmic electron and gamma-ray ...
Cagnoli Irene, De Mitri Ivan
doaj   +1 more source