Results 121 to 130 of about 364,262 (268)

Device Simulation of Hole Transport in 233 nm Multiquantum Well AlGaN‐Based UV LED

physica status solidi (a), Volume 223, Issue 17, 9 September 2026.
Deep‐UV LEDs suffer from low hole injection efficiency. In this work, electro optical simulations of AlGaN DUV LEDs with 6, 12, and 21 quantum wells, emitting at 233 nm, reveal efficient inter‐well hole transport within the active multiple quantum well region. The data are consistent with experimental findings.
Ibrahim Marouf, Friedhard Römer, Marcel Schilling, Franz Biebler, Jakob Höpfner, Massimo Grigoletto, Tim Wernicke, Michael Kneissl, Bernd Witzigmann   +8 more
wiley   +1 more source

Women in Astronomy (Free Astronomy Public Lectures)

, 2014
Scientific literacy is required if we want our global society to succeed, but for a variety of reasons, science isn't a passion for most people, and most of the people in science are stereotypical white men.
Pamela Gay
core   +1 more source

Detection Techniques for Polycyclic Aromatic Hydrocarbons and Their Metabolites: A Review

physica status solidi (a), Volume 223, Issue 17, 9 September 2026.
Overview of the different techniques that can be used to detect polyclic aromatic hydrocarbons and their metabolites. Polycyclic aromatic hydrocarbons (PAHs) are a class of organic pollutants affecting the environment as well as individual health that has been linked to various diseases including cancer.
Martin Wolfgang Konrad, Jeroen Vanoirbeek, Patrick Wagner, Irene Taurino   +3 more
wiley   +1 more source

The 1948 solar eclipse and the genesis of radio astronomy in Victoria [PDF]

, 2004
In the early years of radio astronomy, solar eclipses played a critical role in establishing the sources of solar radio emission. During the half decade from 1945, Australia emerged as a leading nation in radio astronomy, with most of the observations ...
Orchiston, Wayne
core   +1 more source

HWO Target Stars and Systems: A Survey of Archival UV and X-Ray Data

The Astronomical Journal
We assess archival high-energy data for key stars on the Habitable Worlds Observatory (HWO) Target Stars and Systems 2025 list, as stellar radiation is critical to shaping and interpreting planetary atmospheres.
Sarah Peacock, David J. Wilson, Tyler Richey-Yowell, Noah W. Tuchow, Kevin France, José A. Caballero, Riccardo Spinelli, Lía Corrales, Aiden S. Zelakiewicz, Seth Redfield, Keighley Rockcliffe, Allison Youngblood, Cynthia S. Froning, Girish M. Duvvuri, Breanna A. Binder, Natalie R. Hinkel, Eric E. Mamajek   +16 more
doaj   +1 more source

The Past and Present State of Astronomy Education in Thailand

, 1990
About 300 years ago in Lopburi and Ayudhaya, many astronomical observatories were designed, constructed, and supported by the Roman Catholic missionaries from Europe and by King Narai the Great of Siam (Thailand). The interesting recorded history of Thai
Vanichai, Yupa
core  

Solution‐Processed Mn‐Doped 2d Perovskite Wavelength Shifters for Noble‐Liquid Photon Detection

Advanced Functional Materials, Volume 36, Issue 74, 14 September 2026.
Solution‐processed Mn2+‐doped PEA2PbBr4 two‐dimensional perovskite films are demonstrated as large‐area wavelength shifters for noble‐liquid photon detectors. Mn2+ incorporation introduces a broad emission band at ∼620 nm with a large Stokes shift, suppressing self‐absorption and matching SiPM sensitivity.
Elisabetta Colantoni, Laura Basiricò, Andrea Ciavatti, Nicolò Tosi, Valentina Cicero, Massimo Loriggiola, Beatrice Fraboni   +6 more
wiley   +1 more source

Constraints on the Lyman Continuum Escape from Low-mass Lensed Galaxies at 1.3 ≤ z ≤ 3.0

The Astrophysical Journal
Low-mass galaxies can significantly contribute to reionization due to their potentially high Lyman continuum (LyC) escape fraction and relatively high space density. We present a constraint on the LyC escape fraction from low-mass galaxies at z = 1.3–3.0.
Intae Jung, Henry C. Ferguson, Matthew J. Hayes, Alaina Henry, Anne E. Jaskot, Daniel Schaerer, Keren Sharon, Ricardo O. Amorín, Hakim Atek, Matthew B. Bayliss, Håkon Dahle, Steven L. Finkelstein, Andrea Grazian, Lucia Guaita, Göran Östlin, Laura Pentericci, Swara Ravindranath, Claudia Scarlata, Harry I. Teplitz, Anne Verhamme   +19 more
doaj   +1 more source

Room‐Temperature Skyrmionic Synapse in 2D Ferromagnet Fe3GaTe2 Operating via Collective Spin Texture Transformation

Advanced Materials, Volume 38, Issue 49, 1 September 2026.
We demonstrate a neuromorphic synapse in 2D Fe3GaTe2 flakes. The device operates via a current‐driven transformation from a skyrmion‐lattice to a stripe‐domain state, yielding a linear anomalous Hall resistance response with a tunable slope to enable multiply‐accumulate operations. Simulations confirm its viability in artificial neural networks.
Jixiang Huang, Tongji Zhu, PeiYu Cai, Xiaoming Ma, Zhen Wang, Ruifu Zhang, Yi Hao, Jingdi Lu, Liubing He, Jun Xu, Yuejie Zhang, Wanjun Jiang, Jing Tao, Shiming Lei, Pavel Parchinskiy, Jing Teng, Lingfei Wang, Wei Niu, Elton J.G. Santos, Xiaoqian Zhang, Peng Li   +20 more
wiley   +1 more source

A Multiwavelength Survey of Nearby M Dwarfs: Optical and Near-ultraviolet Flares and Activity with Contemporaneous TESS, Kepler/K2, Swift, and HST Observations

The Astrophysical Journal
We present a comprehensive multiwavelength investigation into flares and activity in nearby M dwarf stars. We leverage the most extensive contemporaneous data set obtained through the Transiting Exoplanet Sky Survey, Kepler/K2, the Neil Gehrels Swift ...
Rishi R. Paudel, Thomas Barclay, Allison Youngblood, Elisa V. Quintana, Joshua E. Schlieder, Laura D. Vega, Emily A. Gilbert, Rachel A. Osten, Sarah Peacock, Isaiah I. Tristan, Dax L. Feliz, Patricia T. Boyd, James R. A. Davenport, Daniel Huber, Adam F. Kowalski, Teresa Monsue, Michele L. Silverstein   +16 more
doaj   +1 more source