Results 81 to 90 of about 2,410,070 (200)

EAA: Adapting the Segment Anything Model for Perception-driven Astronomical Source Extraction

The Astrophysical Journal Supplement Series
Source extraction is a fundamental task in astronomical data analysis, yet existing methods are often specialized to specific instruments, spectral bands, or imaging conditions, which limits their generalizability.
Han Wang, Tongsu Zhang, Siyang Chen, Guoyi Zhang, Zhihua Shen, Xia Yang, Peter J. Wheatley, Jorge Fernández Fernández, Ioannis Apergis, Matthew R. Burleigh, Don Pollacco, Bin Lin, James A. Blake, Xiaohu Zhang   +13 more
doaj   +1 more source

Photochemical effects of Mars‐like UV irradiation on carboxylic acids in carbonaceous chondrites and expectations for abiotic background organics on Mars

Meteoritics &Planetary Science, EarlyView.
Abstract In the search for life on Mars, understanding the origin of preserved organics is critical. Expected sources include exogenous delivery, endogenous synthesis, and potentially life. Environmental processing by ultraviolet (UV) irradiation can alter these organics, obscuring hallmarks of their origin. To deconvolve these effects, we conducted an
D. K. Buckner, J. C. Aponte, A. C. Schuerger, D. I. Foustoukos, F. Seguin, M. B. Wilhelm, G. Cooper, A. J. Williams   +7 more
wiley   +1 more source

The PHANGS-HST-Hα Survey: Warm Ionized Gas Physics at High Angular Resolution in Nearby Galaxies with the Hubble Space Telescope

The Astronomical Journal
The PHANGS project is assembling a comprehensive, multiwavelength data set of nearby (∼5–20 Mpc), massive star-forming galaxies to enable multiphase, multiscale investigations into the processes that drive star formation and galaxy evolution.
Rupali Chandar, Ashley T. Barnes, David A. Thilker, Miranda Caputo, Matthew R. Floyd, Adam K. Leroy, Leonardo Úbeda, Janice C. Lee, Médéric Boquien, Daniel Maschmann, Francesco Belfiore, Kathryn Kreckel, Simon C. O. Glover, Ralf S. Klessen, Brent Groves, Daniel A. Dale, Eva Schinnerer, Eric Emsellem, Erik Rosolowsky, Frank Bigiel, Guillermo Blanc, Mélanie Chevance, Enrico Congiu, Oleg V. Egorov, Chris Faesi, Kathryn Grasha, Stephen Hannon, Kirsten L. Larson, Laura A. Lopez, Angus Mok, Justus Neumann, Eve Ostriker, Alessandro Razza, Patricia Sánchez-Blázquez, Francesco Santoro, Andreas Schruba, Jiayi Sun, Antonio Usero, E. Watkins, Bradley C. Whitmore, Thomas G. Williams   +40 more
doaj   +1 more source

Methods for substituting onsite ambient ultraviolet radiation measurements for personal exposure studies

Photochemistry and Photobiology, EarlyView.
Three methods for substituting on‐site ambient ultraviolet radiation measurements for personal exposure measurements were investigated. Assuming spatial persistency of measurements from high‐grade instruments delivers lowest uncertainties up to distances of 82 km.
F. Lubitz, S. Helletzgruber, H. Danhel, D. Radmanovac, A. Dzwonek, E. Kitz, P. Weihs, A. W. Schmalwieser   +7 more
wiley   +1 more source

The use of liquid crystal adaptive optics devices in astronomy [PDF]

, 1991
Images obtained from large astronomical telescopes are distorted and blurred by the effects of the atmosphere. In order to compensate for this, an adaptive optics system can be incorporated downstream from the telescope focus.
Love, G.D, Love, Gordon D.
core  

Photooxidation of a reactive azo-dye from the textile industry using UV/H2O2 technology: Process optimization and kinetics

, 2004
The homogeneous advanced oxidation process of UV/H2O2 was utilized to decolourize CI Reactive Red 195A (RR195A) as one of the most used dyes in the textile industry in Queensland.
Keller-Lehmann, Beatrice, Keller-Lehmann, B., Keller, Jurg, Sudarjanto, Gatut, Keller, J., Sudarjanto, G.   +5 more
core   +1 more source

Identifying Suitable Front Contacts for High‐Efficiency Cd(Se,Te) Solar Cells on Space‐Qualified Cover Glass

Progress in Photovoltaics: Research and Applications, Volume 34, Issue 10, Page 1277-1291, October 2026.
Front contact selection governs interfacial stability in CdTe‐based (Cd(Se,Te)) solar cells on ultra‐thin space‐qualified cover glass. Optimized TCO/emitter combinations suppress interdiffusion and deliver up to 16.2% AM0 efficiency with high specific power, demonstrating strong potential for lightweight space photovoltaics.
Aesha P. Patel, Ryan Muzzio, Matthew R. Young, Robert Morrissey, Suresh Chaulagain, B. Edward Sartor, Prabodika N. Kaluarachchi, Christian Velez, Joshua A. Brown, Bishal Shrestha, Joel N. Duenow, Stephen Glynn, Michael J. Heben, Zhaoning Song, Nikolas J. Podraza, Adam B. Phillips, Randy J. Ellingson, Matthew O. Reese   +17 more
wiley   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, Volume 43, Issue 7, Page 4475-4514, October 2026.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

Methodology for assessing the suitability of immature stages of Lepidoptera for nocturnal surveying using ultraviolet flashlights

Ecological Entomology, Volume 51, Issue 5, Page 845-852, October 2026.
Lepidoptera are highly sensitive to changes in their surroundings, making them excellent indicators of ecosystem health; however, surveying adult butterflies of certain species presents challenges. Nocturnal surveying of larvae and pupae using ultraviolet light (UV) is gaining popularity as a simple, inexpensive, and non‐invasive method.
Gareth J. Tilley, Azhanullah Khan, Daniel Treuherz, David Moskowitz, Toni Kasiske, Yann Baillet, Grégory Guicherd, Bastien Louboutin, Evgeny A. Chekhovich, Alan J. A. Stewart   +9 more
wiley   +1 more source

Challenges and Opportunities for Layered Double Perovskite Solar Cells

Solar RRL, Volume 10, Issue 17, 15 September 2026.
Layered lead‐free double perovskites suffer from intrinsic and extrinsic limitations that hinder high photovoltaic performance. This review identifies key challenges, including unfavorable band structures, strong self‐trapping, defect‐induced recombination, processing‐induced inhomogeneity, and device‐level mismatches.
Krishnaiah Mokurala, Marija Mrkonjić, Ceylan Doyranli, Jovana V. Milić, Mohammad Reza Golobostanfard   +4 more
wiley   +1 more source