Results 181 to 190 of about 14,211,114 (251)

Assessment of Human Thermal Stress Dynamics and Regional Drivers Across the Arabian Peninsula During 1990–2022 From Observations

International Journal of Climatology, EarlyView.
The results reveal that thermal stress varies substantially across the four AP regions, with winter cold stress in Region I, year‐round heat stress in Region II, pronounced summer heat stress in Region III, and persistent strong to very strong heat stress from late spring to early autumn in Region IV.
Waheed Ullah, Amal Abdullah AlGhafri, Safi Ullah, Salah Basem Ajjur, Khadija Alhumaid, Daniel Fiifi Tawia Hagan   +5 more
wiley   +1 more source

A gas-enshrouded and gas-reddened black hole at cosmic dawn. [PDF]

Nature
Naidu RP, Matthee J, Katz H, de Graaff A, Oesch PA, Smith A, Greene JE, Brammer G, Weibel A, Hviding R, Chisholm J, Labbé I, Simcoe RA, Witten C, Sun WQ, Atek H, Baggen JFW, Belli S, Bezanson R, Boogaard LA, Bose S, Bouwens RJ, Covelo-Paz A, Dayal P, Fudamoto Y, Furtak LJ, Giovinazzo E, Goulding A, Gronke M, Heintz KE, Hirschmann M, Illingworth G, Inoue AK, Johnson BD, Leja J, Leonova E, McConachie I, Maseda MV, Natarajan P, Nelson E, Setton DJ, Shivaei I, Sobral D, Stefanon M, Tacchella S, Toft S, Torralba A, van Dokkum P, van der Wel A, Volonteri M, Walter F, Wang B, Watson D, Whitaker K.   +53 more
europepmc   +1 more source

Managing and visualising geochemical data for tephra correlation with the IntChron Integration Tool

Journal of Quaternary Science, EarlyView.
ABSTRACT There is now a wealth of glass‐shard geochemical data for volcanic ash (tephra) layers from a wide range of volcanoes and eruptions, providing invaluable datasets for tephrochronology. However, compilation of published data to assess tephra correlations leads to large files and requires careful management.
Victoria C. Smith, Danielle McLean, Eloise Wilkinson‐Rowe, Emma L. Horn, Gavin Kane, Christopher Bronk Ramsey   +5 more
wiley   +1 more source

StarWhisper Telescope: an AI framework for automating end-to-end astronomical observations. [PDF]

Commun Eng
Wang C, Zhang Y, Li Y, Hu X, Mao Y, Chen X, Du P, Wang R, Wu Y, Yang H, Li Y, Wang B, Mu H, Chen X, He S, Mo H, Zhang L, Du L, Zhao Y, Tian J, Ge L, Mao Y, Li S, Wang Z, Lu X, Zou J, Huang Y, Sun N, Zheng J, He M, Bai Y, Jin J, Wu H, Liu J.   +33 more
europepmc   +1 more source

Revealing the Resonant Physics of Open Photonic Time Crystals

Laser &Photonics Reviews, EarlyView.
ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero, Sergei Gladyshev, David Globosits, Stefan Rotter, Egor A. Muljarov, Thomas Weiss   +5 more
wiley   +1 more source

Intrinsically Design‐Rule‐Compliant Nanophotonic Inverse Design via Learned Generative Manifolds

Laser &Photonics Reviews, EarlyView.
A generative reparameterization framework for nanophotonic inverse design is introduced, restricting optimization to a learned manifold of design‐rule‐compliant geometries. Unlike conventional penalty‐based approaches, fabrication constraints are encoded intrinsically within the design representation.
Bahrem Serhat Danis, Demet Baldan Desdemir, Enes Akcakoca, Zeynep Ipek Yanmaz, Gulzade Polat, Ahmet Onur Dasdemir, Aytug Aydogan, Abdullah Magden, Emir Salih Magden   +8 more
wiley   +1 more source

Solution-based synthesis of a CZTS/rGO nanocomposite: structural, electrical and optical studies for solar cell applications. [PDF]

RSC Adv
Nayak P, Mahanandia P, Mukharjee J, Karmakar S, Mishra SS.   +4 more
europepmc   +1 more source

Tunable Terahertz Generation in Dispersion‐Engineered ZnTe Waveguides

Laser &Photonics Reviews, EarlyView.
A dispersion‐engineered Zinc Telluride (ZnTe) slab waveguide platform enables tunable and efficient guided‐wave terahertz (THz) generation through modal phase matching. By tailoring the optical and THz modal dispersion, coherent THz emission is achieved across 0.1–3 THz.
Arun Jana, Cormac McDonnell, Mai Tal, Anastasiya Reveguk, Amit Kohn, Tal Ellenbogen   +5 more
wiley   +1 more source

Image-derived input functions for [18F]LW223 and [18F]SynVesT-1 PET in the rodent determined using an autoencoder (IDIF-AE). [PDF]

Phys Med Biol
C Kutos J, von Kietzell A, McGowan I, Bertoglio D, G MacAskill M, As Tavares A, Wimberley C, S Clegg P.   +7 more
europepmc   +1 more source

Visible Octave Frequency Combs in Silicon Nitride Nanophotonic Waveguides Driven by Ti:Sapphire Lasers

Laser &Photonics Reviews, EarlyView.
Chip‐based frequency combs are usually pumped from telecom wavelengths, far from the visible. This work instead pumps close to the visible with a Ti:sapphire laser ‐ the source behind the original optical frequency combs and now becoming chip‐integrable‐ and lets silicon‐nitride waveguides convert it into efficient, octave‐spanning visible‐to‐infrared ...
Abdullah Alabbadi, Ewan Allan, Hanna Ostapenko, Pablo Castro‐Marín, Derryck T. Reid, Pascal Del'Haye   +5 more
wiley   +1 more source