Results 141 to 150 of about 364,262 (268)

Lyα Emission from K and M Dwarfs: Intrinsic Profiles, Variability, and Flux in the Habitable Zone

The Astrophysical Journal
Lyman-alpha (Ly α ) is the most prominent ultraviolet (UV) emission line in low-mass stars, playing a crucial role in exoplanet atmospheric photochemistry, heating, and escape.
Sarah Peacock, Travis S. Barman, R. O. Parke Loyd, Adam C. Schneider, Allison Youngblood, Kenneth G. Carpenter, Evgenya L. Shkolnik   +6 more
doaj   +1 more source

Machine‐Learning‐Enhanced Printed Vertical Magnetoresistive Sensors for Transparent, Flexible, Multimodal Interactive Magnetoelectronics

Advanced Science, Volume 13, Issue 50, 7 September 2026.
This study presents printed magnetoresistive sensors with a vertically aligned architecture that enables high optical transparency and mechanical flexibility. By integrating deep learning for the analysis of complex spatiotemporal signal patterns, the system further achieves intelligent multimodal interaction capabilities.
Rui Xu, Guannan Mu, Oleksandr V. Pylypovskyi, Qihao Zhang, Rico Illing, René Hübner, Ran He, Andreas Knüpfer, Sebastian Lehmann, Olha Bezsmertna, Kornelius Nielsch, Denys Makarov   +11 more
wiley   +1 more source

Improved Astrophysical and Computational Oscillator Strengths for Ultraviolet P ii Lines

The Astrophysical Journal
Abundance measurements for the volatile element phosphorus are important for measuring the metallicity in interstellar and circumgalactic gas, where their accuracies are limited by uncertainties in the oscillator strengths.
Frances H. Cashman, Romas Kisielius, Varsha P. Kulkarni, Rasa Karpuškienė, Fatima Elkhatib   +4 more
doaj   +1 more source

Neuromorphic Deep‐Ultraviolet Signal Processing Using a‐Ga2O3

Advanced Electronic Materials, Volume 12, Issue 17, 7 September 2026.
Amorphous gallium oxide (a‐Ga2O3) metal‐semiconductor‐metal photodetectors exhibit paired‐pulse facilitation arising from charge trapping. Four‐bit UVC binary sequences are encoded into separable conductance states. An RC equivalent circuit model of the device is deployed in single‐ and composite multi‐node reservoir computers, achieving ∼95% accuracy ...
Sidhant Sharma, Arthur Robert, Florian Wilke, Martin W. Allen, Valentina Baccetti, Jim G. Partridge, Hiep N. Tran   +6 more
wiley   +1 more source

Defects Induced Instability of Perovskite Solar Cells

Advanced Energy and Sustainability Research, Volume 7, Issue 9, September 2026.
Defect passivation and grain‐size engineering in perovskite films are achieved through precursor additives, antisolvent additives, interfacial modification, light treatment, surface polishing, and temperature treatment. The synergistic effects suppress defect states and enhance film quality, providing insights into effective strategies for improving ...
Davoud Dastan, Fariba Tajabadi, Mohammad Sajedi Alvar, Mustafa Kareem, Amirhossein Rahimi, Mahboubeh Hadadian, Mohammad Hatamvand, Zhicheng Shi, Yingxin Chen, Lin Tao, Antonio Abate, Xi‐Tao Yin, Hanieh Helli, Mohammad Khaja Nazeeruddin   +13 more
wiley   +1 more source

Education and Understanding of Astronomy through Total Solar Eclipses

, 2003
A total solar eclipse has a great impact on ppeople, and hence there are very old historic records in China, Mesopotamia, etc. The impact still does not change in present times, and inspires wonder in us. The spectacular and magnificent event at a total
Takahashi, Noritsugu, Iizuka, Yuto, Hiei, Eijiro   +2 more
core  

Synergistic Engineering of Oxygen Vacancies and Topological Surface States in Bi2Te3/TiO2‐X Heterostructures for Highly Efficient Photothermal‐Driven CO2 Photoreduction

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
Integrating the topological insulator Bi2Te3 with oxygen‐deficient TiO2‐X creates a synergistic platform for full‐spectrum CO2 reduction, achieving high‐selectivity C2+ production via enhanced photothermal catalysis and tailored charge dynamics.
Bingke Zhang, Chenchen Zhao, Jing Qiao, Changcun Li, Yang Wang, Xingshuo Liu, Dongbo Wang, Gang Liu, Zhao Qian, Rajeev Ahuja, Jinzhong Wang, Degang Zhao   +11 more
wiley   +1 more source

The Olive Oil Mill as Circular Hub

European Journal of Lipid Science and Technology, Volume 128, Issue 9, September 2026.
Olive oil production generates large amounts of by‐products at every stage of the production process. The olive mill can be considered a circular hub, where such by‐products are valorized through a cascade approach that first recovers valuable compounds and then converts the remaining biomass into renewable energy.
Sofia Zantedeschi, Ilaria Grigoletto, Matilde Tura, Alessandra Bendini, Enrico Valli, Alessandro Paglianti, Federico Alberini, Giuseppina Montante, Fabrizio Cavani, Tommaso Tabanelli, Mirko Maraldi, Francesca Valenti, Irene Maggiore, Leonardo Setti, Sara El Yamani, Andrea Contin, Tullia Gallina Toschi   +16 more
wiley   +1 more source

Astronomy Without a Telescope

, 2001
Created by author Nick Strobel, "Astronomy Notes" is an educational resource for introductory astronomy classes for undergraduates. This section describes: the celestial sphere, coordinate systems, the motion of the stars.
Strobel, Nick
core  

A Systematic Characterization of the Solvent‐Dependent Photoswitching Behavior of an N‐Substituted Nitrospiropyran Derivative

ChemSystemsChem, Volume 8, Issue 5, September 2026.
Investigation of the photoswitching kinetics of a spiropyran–merocyanine (SP–MC) derivative in different solvents reveals that decreasing solvent polarity limits MC formation through aggregation, disfavoring nonpolar environments. In contrast, SP formation remains largely insensitive to solvent polarity, reflecting the greater thermodynamic stability ...
Tobias Eckardt, Natalia Velk, Daniel Voigt, Florian Schmitt, Sergio Kogikoski, Svetlana Santer, Bernd Schmidt, Evgenii Titov, Amitabh Banerji, Martin Reifarth, Marek Bekir   +10 more
wiley   +1 more source