Results 171 to 180 of about 15,911 (261)

Two-dimensional fluorescence spectroscopy with entangled photons and time- and frequency-resolved two-photon coincidence detection. [PDF]

Sci Adv
Fujihashi Y, Iso O, Shimizu R, Ishizaki A.   +3 more
europepmc   +1 more source

Red‐Pi: A Low‐Cost Red Teaming Platform for Water Infrastructure Security Assessment

SECURITY AND PRIVACY, Volume 9, Issue 4, July/August 2026.
ABSTRACT The water and wastewater sector faces growing cyber threats due to rapid digitalization and the use of IoT‐based control systems. Many utilities manage essential services that affect public health and the environment but do not have enough cybersecurity staff and cannot afford regular security tests.
Agustin Di Bartolo, Mohammadhossein Homaei, Pablo García Rodríguez, José Carlos Sancho Núñez, Andrés Caro Lindo, María Mar Ávila Vegas   +5 more
wiley   +1 more source

Nanosecond-latency all-optical fiber sensing with in-sensor computing. [PDF]

Light Sci Appl
Tao Y, Wan Y, Long Z, Zhang W, Du J, He Z.   +5 more
europepmc   +1 more source

Soft Proton Environment Modeling for SMILE Using XGBoost and Solar Cycle–Informed Synthetic Data Sets

Space Weather, Volume 24, Issue 7, July 2026.
Abstract Soft proton contamination presents a persistent threat to the performance of space‐based X‐ray observatories such as ESA's upcoming Solar‐wind Magnetosphere Ionosphere Link Explorer (SMILE). This study develops a machine‐learning framework for modeling soft proton fluxes in the 92.2–159.7 keV range, tailored to SMILE's elliptical, highly ...
Simon Mischel, Elena A. Kronberg, C. P. Escoubet   +2 more
wiley   +1 more source

Mid-infrared to ultraviolet efficient multiphoton frequency upconversion in NbOI₂ crystals. [PDF]

Nat Commun
Zhu S, Mao X, Yan C, Wang F, Xu Z, Hu H, Xu X, Fang Y, Sun F, Duan R, Wu Y, Yang Y, Wang C, Qiao Z, Chen W, Liang H, Huang F, Liu Z, Luo Y, Wang QJ.   +19 more
europepmc   +1 more source

Statistical Study on Pulsating Auroras and High‐Latitude Propagation of Chorus Waves Based on Conjugate Observations of Ground‐Based Imagers and Arase Satellite

Journal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.
Abstract Pulsating aurora (PsA) is one of the common diffuse auroras typically generated by ∼10 keV electron precipitation. Precipitating electrons are scattered via wave‐particle interactions with whistler‐mode chorus waves in the magnetosphere. Previous studies have observationally demonstrated that, during PsAs, highly energetic electrons with ...
Y. Ito, Y. Ogawa, M. Fukizawa, Y. Tanaka, A. Kadokura, Y. Miyoshi, K. Hosokawa, A. Shinbori, T. Hori, Y. Kasahara, S. Matsuda, F. Tsuchiya, A. Kumamoto, A. Matsuoka, M. Teramoto, K. Yamamoto, I. Shinohara   +16 more
wiley   +1 more source

Chiral orbital lasing in a twisted bilayer metasurface. [PDF]

Nat Commun
Wang M, Lv N, Zhang Z, Chen Y, Si J, Chen J, Tang C, Yin X, Liu Z, Xin D, Yi Z, Zheng W, Kivshar Y, Peng C.   +13 more
europepmc   +1 more source

Application of Deep Learning and Explainable AI to NIR Auroral Detection in Satellite Time‐Series Images

Space Weather, Volume 24, Issue 7, July 2026.
Abstract In this study, we employ a deep learning approach to detect auroras from near‐infrared (NIR) sequential images captured by the satellite‐based imager, the Enhanced Polar Outflow Probe (e‐POP)/Fast Auroral Imager (FAI). We also apply the Eigen‐Class Activation Map (Eigen‐CAM), an explainable AI technique in a broad sense, as a post‐hoc ...
Junmu Youn, Serin Jeon, Woong Jeon, Se‐Heon Jeong, Jeong‐Heon Kim, Woo Kyoung Lee, Yong‐Jae Moon, Geonhwa Jee   +7 more
wiley   +1 more source

Reconfigurable free-space mode generation and detection enabled by an active photonic integrated circuit coupled to a passive mode-selective interface. [PDF]

Commun Phys
Boldin A, Daly UJ, Milanizadeh M, Alsaigh R, Chen Z, Miller DAB, Morichetti F, Lavery MPJ.   +7 more
europepmc   +1 more source

e‐Government Adoption in Ghana: Structural Conditions and Employee Affective Orientation

Public Administration Review, Volume 86, Issue 4, Page 1060-1073, July/August 2026.
ABSTRACT Globally, technological innovations are driving governments towards e‐government adoption. Digitization efforts have met with more resistance and challenges in the Global South context due to high levels of financial, logistical, and technical constraints.
Sandy Zook, Peter Adjei‐Bamfo, Thema Monroe‐White, Justice N. Bawole   +3 more
wiley   +1 more source