Results 151 to 160 of about 3,051,692 (290)

Direct deposition on pre-cooled grids: a new approach to sub-millisecond cryoEM grid preparation. [PDF]

open access: yesActa Crystallogr D Struct Biol
We describe a new method to prepare grids for cryoEM on the sub‐millisecond timescale.There has been a rapid expansion in new approaches to sample preparation for single‐particle cryoEM. One drive has been around speeding up the process both for the application of time‐resolved studies and in outrunning some of the negative effects which may come from ...
Klebl DP   +5 more
europepmc   +2 more sources

Dust Pollution Mitigation by Solar Farm Deployment in Northern China

open access: yesGeophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Dust storms pose a growing threat to air quality and public health across northern China. As part of the carbon‐neutrality and clean‐air strategy, China is rapidly expanding solar farms, particularly in desert regions, yet their potential to mitigate dust pollution and improve downwind air quality remains poorly understood. Here, we develop an
Yueting Hao   +6 more
wiley   +1 more source

Concurrent Cloud and Drizzle Observations From Synergistic Ground‐Based Measurements

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract Drizzle, a common feature of marine boundary layer clouds formed through collision‐coalescence, plays a key role in cloud microphysics and evolution. However, simultaneously retrieving cloud and drizzle properties from remote‐sensing observations remains challenging because drizzle droplets often dominate radar signals, masking cloud ...
Ching‐Shu Hung   +9 more
wiley   +1 more source

Quantifying Black Carbon Mixing State Heterogeneity Using a Machine Learning Model

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract The climate impact of black carbon (BC) is strongly sensitive to the mass ratio of non‐BC coatings to BC (RBC). However, current global climate models (GCMs) typically assume a uniform composition within individual BC‐containing particle populations, neglecting the significant particle‐to‐particle RBC heterogeneity. To address this, we train a
Junchang Wang   +12 more
wiley   +1 more source

New Statistical Model for Variability of Aerosol Optical Thickness: Theory and Application to MODIS Data over Ocean. [PDF]

open access: yesJ Atmos Sci, 2016
Alexandrov MD   +5 more
europepmc   +1 more source

Cooking Impacts PM1 in Suburban New York, With Implications for Respiratory Deposition

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract Sub–micron particulate matter (PM1) in the New York (NY) metropolitan area impacts air quality and human health. We characterized refractory black carbon (BC) and non–refractory (NR) PM1 in Mineola, NY during winter 2024 and NR‐PM1 during summer 2023.
Adam De Groodt   +9 more
wiley   +1 more source

Morphology‐Driven Ternary Pattern Space Spans Shallow Marine Clouds

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract Marine shallow clouds exhibit a variety of patterns, which have been the subject of extensive research. In this study, we introduce a new approach for their continuous classification using Moderate Resolution Imaging Spectroradiometer (MODIS) true color imagery.
Hadar Roth   +3 more
wiley   +1 more source

Mid‐Infrared on‐Chip Dichroic Filters Enabled by Adiabatic Evolution and Dispersion‐Engineered Subwavelength Grating Waveguides

open access: yesNanophotonics, Volume 15, Issue 17, 11 September 2026.
An on‐chip mid‐infrared dichroic filter is demonstrated using an asymmetric directional coupler theory comprising a longitudinally segmented subwavelength‐grating waveguide and a strip waveguide. Suppressed slot‐like scattering loss and precise dispersion engineering yield flat‐top responses over 3.3–3.7 μm, ∼0.9 dB insertion loss, ∼1 dB/nm roll‐off ...
Yuheng Liu   +6 more
wiley   +1 more source

Directly Imprinted Porous Titania Metasurfaces Supporting Guided Mode Resonance and Quasibound States in the Continuum

open access: yesAdvanced Photonics Research, Volume 7, Issue 9, September 2026.
Direct nanoimprinting transforms mesoporous titania films into visible‐wavelength metasurfaces through a streamlined deposition‐and‐imprint process requiring no conventional lithography or etching. The resulting structures support pitch‐tunable guided‐mode resonances, symmetry‐controlled quasibound states in the continuum, structural‐color image ...
Matthew C. Panipinto   +5 more
wiley   +1 more source

SERS Facemask for Rapid and Portable Sensing Mycobacterium Tuberculosis Antigens for TB Screening

open access: yesAdvanced Science, Volume 13, Issue 49, 3 September 2026.
Our study introduced an Au─Ag embedded covalent organic framework (U@COF) ‐mediated facemask for sensing TB antigen ESAT‐6/CFP‐10 complex in clinical droplet samples toward TB screening. Practical analysis of clinical samples demonstrated the availability of our facemask, which is capable of identifying the TB subjects (N = 17) from healthy candidates (
Lingzhi Chen   +20 more
wiley   +1 more source

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