Results 61 to 70 of about 253 (183)

Classification of iron oxide aerosols by a single particle soot photometer using supervised machine learning [PDF]

Atmospheric Measurement Techniques, 2019
Single particle soot photometers (SP2) use laser-induced incandescence to detect aerosols on a single particle basis. SP2s that have been modified to provide greater spectral contrast between their narrow and broad-band incandescent detectors have ...
K. D. Lamb, K. D. Lamb
doaj   +1 more source

Review of High‐Speed Digital Image Correlation: Advancements and Good Practices

Strain, Volume 61, Issue 6, December 2025.
This review synthesizes advances in high‐speed (HS) and ultra‐high‐speed (UHS) digital image correlation (DIC) across more than 150 studies. Key developments include camera innovations, refined image processing, and experimental strategies that enable unprecedented temporal and spatial resolution of dynamic events.
A. Arrington, A. Westra, P. Jannotti, P. Reu, L. Lamberson   +4 more
wiley   +1 more source

The Carbon Aerosol / Particles Nucleation with a Lidar: Numerical Simulations and Field Studies

EPJ Web of Conferences, 2016
In this contribution, we present the results of two recent papers [1,2] published in Optics Express, dedicated to the development of two new lidar methodologies.
Miffre Alain, Anselmo Christophe, Francis Mirvatte, David Gregory, Rairoux Patrick   +4 more
doaj   +1 more source

Elucidating real-world vehicle emission factors from mobile measurements over a large metropolitan region: a focus on isocyanic acid, hydrogen cyanide, and black carbon [PDF]

Atmospheric Chemistry and Physics, 2018
A mobile laboratory equipped with state-of-the-art gaseous and particulate instrumentation was deployed across the Greater Toronto Area (GTA) during two seasons.
S. N. Wren, J. Liggio, Y. Han, K. Hayden, G. Lu, C. M. Mihele, R. L. Mittermeier, C. Stroud, J. J. B. Wentzell, J. R. Brook, J. R. Brook   +10 more
doaj   +1 more source

Directional enhancement of photoluminescence from phosphor plates with TiO2 nanoantenna stickers

Nanophotonics, Volume 14, Issue 25, Page 4627-4636, December 2025.
Abstract Directional illumination is critical for next‐generation solid‐state lighting. In this study, we demonstrate that flexible nanoantenna stickers enhance photoluminescence (PL) directionality. By integrating YAG:Ce phosphor plates and distributed Bragg reflectors (DBRs), these stickers achieve controlled radiation distribution, advancing the ...
Hongjie Gao, Joshua T.Y. Tse, Shunsuke Murai, Katsuhisa Tanaka   +3 more
wiley   +1 more source

Machine‐learning‐assisted photonic device development: a multiscale approach from theory to characterization

Nanophotonics, Volume 14, Issue 23, Page 3761-3793, 02 November 2025.
Abstract Photonic device development (PDD) has achieved remarkable success in designing and implementing new devices for controlling light across various wavelengths, scales, and applications, including telecommunications, imaging, sensing, and quantum information processing.
Yuheng Chen, Alexander Montes McNeil, Taehyuk Park, Blake A. Wilson, Vaishnavi Iyer, Michael Bezick, Jae‐Ik Choi, Rohan Ojha, Pravin Mahendran, Daksh Kumar Singh, Geetika Chitturi, Peigang Chen, Trang Do, Alexander V. Kildishev, Vladimir M. Shalaev, Michael Moebius, Wenshan Cai, Yongmin Liu, Alexandra Boltasseva   +18 more
wiley   +1 more source

Creation of the universal system of dynamic control of emissions of diesel solid particles on the basis of microtunnel

Людина і довкілля: Проблеми неоекології, 2017
Purpose. Creation of a national universal system of dynamic control of particulate emissions from diesel engines of different types – automobile, diesel, tractor, court and others on the basis of the measuring complex with the microtunnel MKT-2. Methods.
A. P. Polivyanchuk, O. I. Kaslin, M. F. Smirny, O. P. Strokov, O. O. Skuridina   +4 more
doaj   +1 more source

Enhanced Mobility and Stability in Solution‐Processed Mo–Pr Co‐Doped In2O3 TFTs Guided by Machine Learning Optimization

Electron, Volume 3, Issue 4, November 2025.
Schematic diagram of synergistic interaction between Mo and Pr in InPrMoO films. ABSTRACT In2O3‐based TFTs have garnered widespread attention due to their higher mobilities than amorphous silicon. Previous studies have indicated that rare earth doping can enhance the NBIS stability of TFTs, but this often results in a decrease in mobility.
Weixin Cheng, Yuexin Yang, Han Li, Xiaoqin Wei, Honglong Ning, Guoping Su, Shaojie Jin, Chenbo Min, Rihui Yao, Junbiao Peng   +9 more
wiley   +1 more source

Compact Spectral Imaging: A Review of Miniaturized and Integrated Systems

Laser &Photonics Reviews, Volume 19, Issue 21, November 6, 2025.
This review explores the rapid shift toward compact spectral imaging systems by examining four key design paradigms: Do‐It‐Yourself (DIY) platforms, freeform optics, filter‐on‐chip integration, and multifunctional metasurfaces. The discussion highlights critical applications in medicine, agriculture, and environmental monitoring, providing comparative ...
Sani Mukhtar, Amir Arbabi, Jaime Viegas
wiley   +1 more source

Valence and Site Engineering Enable Efficient Broadband Near‐Infrared Emission at 960 nm in Cr3+‐Activated Forsterite

Advanced Materials, Volume 37, Issue 39, October 2, 2025.
This study reports a near‐infrared (NIR) luminescent material (Mg2SiO4:1.5%Cr,5%Li) with efficient (EQE = 48%) ultra‐broadband (FWHM ≈ 2413 cm−1 (226 nm)) NIR emission at 960 nm upon blue‐light excitation. This innovation addresses the low efficiency of long‐wavelength (λmax > 900 nm) NIR‐emitting materials due to the radiationless de‐activation and ...
Lei Zhong, Yuefei Xiang, Shiwen Liu, Zaidong Chen, Qingyu Kong, Zhaowen Bai, Yang Ren, Fangxi Xie, Chunyan Jiang, Lei Zhou, Jean‐Claude G. Bünzli, Mingmei Wu   +11 more
wiley   +1 more source