Results 141 to 150 of about 18,734,225 (295)

Listening, in Times of Noise

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Li Li
wiley   +1 more source

Self‐Oscillation in Photochromic Thiazolothiazole‐Embedded Polymers

Advanced Photonics Research, Volume 7, Issue 9, September 2026.
Experimental observation of redox‐driven self‐oscillations at the soft‐matter/ambient interface of a photochromic thiazolothiazole‐embedded polymer by spectroscopic ellipsometry. The self‐oscillations are facilitated by a reversible electron transfer cycle involving the thiazolothiazole unit, a cross‐linked polymer matrix, and ambient molecular oxygen.
Nuren Z. Shuchi, Tyler J. Adams, Naz F. Tumpa, Dustin Louisos, Tom Tiwald, Glenn D. Boreman, Michael G. Walter, Tino Hofmann   +7 more
wiley   +1 more source

Ab Initio Path Integral Monte Carlo Study of the 2D Uniform Electron Liquid at Finite Temperatures: Structural Properties, Density Response and Roton‐Type Excitation

Annalen der Physik, Volume 538, Issue 9, September 2026.
Path integral Monte Carlo simulations are used to simulate the 2D electron gas over a broad range of densities and temperatures with very high accuracy. These results constitute a rigorous benchmark for other methods and approximations and uncover the existence of a roton‐type feature in the dynamic structure factor at strong electronic coupling ...
Tobias Dornheim, Fotios Kalkavouras, Paul Hamann, Zhandos A. Moldabekov, Jan Vorberger, Panagiotis Tolias   +5 more
wiley   +1 more source

High Energy Astrophysics

, 2016
I was invited as a lecturer at the Sumer School on Astrophysics and Astroparticles in Petnica Serbia. I gave talks on "High Energy Astrophysics", where I mainly focused on the production, propagation and detection of high energy astroparticles ...
Yang, Lili
core  

Thermal Behavior of Radiative Darcy–Forchheimer Nanofluid Flow With Heat Source/Sink Effects

Engineering Reports, Volume 8, Issue 9, September 2026.
Radiative Darcy–Forchheimer nanofluid flow in a porous medium is numerically analyzed with heat source/sink effects. Radiation enhances heat transfer and boundary layer thickness, while increasing Forchheimer resistance suppresses velocity, providing insights for optimizing thermal management in high‐temperature porous systems.
Avinash B. Raut, Jagadish V. Tawade, Pradeep G. Janthe, Sameer S. Gajghate, Muhamad M. Noor, Milon Selvam Dennison   +5 more
wiley   +1 more source

Atmospheric Cerenkov astronomy of cataclysmic variables & other potential gamma ray sources [PDF]

, 1993
Recent developments in the application of the atmospheric Cerenkov technique to 7-ray astronomy are reviewed here. These include new methods of signal to noise enhancement and the increasing diversity of stellar systems positively identified as Very High
Bradbury, S.M, Bradbury, Stella Marie
core  

Thin‐film lithium niobate photonics: Frontiers in millimeter‐wave and terahertz generation and integrated applications

InfoScience, Volume 3, Issue 3, September 2026.
With the advancement of 6G communications, high‐precision radar, and advanced imaging technologies, there is a growing demand for compact, high‐performance light sources capable of generating high‐frequency radio waves (millimeter‐wave and terahertz waves). This article systematically introduces how to efficiently generate these high‐frequency waves on
Jianfeng Xiong, Zhenyu Wang, Xu Li, Guo Tang, Sizhe Wang, Jiyuan Huang, Guochao Wang, Shuhua Yan, Wenzhao Sun   +8 more
wiley   +1 more source

Broadband and Enhanced Second‐Harmonic Generation in Metallic 3R‐TaS2

Small, Volume 22, Issue 53, 21 September 2026.
A pronounced and robust SHG response has been observed in metallic 3R‐TaS2. It shows broadband SH conversion from 1020 nm to 1410 nm. Moreover, compared to the sapphire substrate, 3R‐TaS2 flakes with various thicknesses on the gold substrate showed different SHG enhancement; the enhancement factors range from 2.7 to 45.5.
Ruo‐Si Chen, Chuanyu Wang, Xiangqi Liu, Zhuoyuan Lu, Shuyao Qiu, Boqing Liu, Tieyu Lü, Shi‐Rui Zhang, Yanfeng Guo, Yuerui Lu   +9 more
wiley   +1 more source

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

X-Ray Spectrometry, Volume 55, Issue 5, Page 721-729, September/October 2026.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244 Cm sources, and come with severe concerns on radiation safety and isotope availability.
Leandro Silveri, Artem Knyazev, Hashem Alaidaros, Maryam Manzoor Amanullah, Zach Ioannou, Tengiz Ibrayev, Danish Khan, Sara Leardini, Laura Manenti, Simi Maria Emilia Mangani, Safa Naseem, Sandhya Sharma, Sara Trevisan, Alia Zino, Francesco Arneodo   +14 more
wiley   +1 more source

Burn Severity as a Driver of Multi‐Year Increases in Gross Primary Production and Solar‐Induced Fluorescence Following a Wildfire in Arctic Tundra

AGU Advances, Volume 7, Issue 6, September 2026.
Abstract While climate‐driven increases in wildfires are altering the composition and function of Arctic ecosystems, the impact of burn severity on longer‐term changes in community composition and ecosystem fluxes remains less understood, creating uncertainty in estimates of the biome's carbon storage capacity.
Jinhyuk E. Kim, Rebecca C. Scholten, Rachel Badzioch, Salvatore R. Curasi, Ian Klupar, Alexa A. Salinas, Michael L. Goulden, James T. Randerson, Edward B. Rastetter, Adrian V. Rocha   +9 more
wiley   +1 more source