Results 201 to 210 of about 111,849 (294)

A Comparison of Ground Motion Intensity Measures for Estimating Collapse

open access: yesEarthquake Spectra, Volume 42, Issue 2, May 2026.
This study examines the use of 15 different intensity measures (IMs) for estimating structural collapse using results from incremental dynamic analysis (IDA). IDA results from 54 numerical models were considered, including (i) 12 reinforced concrete (RC) frame structures, (ii) 16 RC wall–frame structures and (iii) 26 steel buckling‐restrained braced ...
Liam Pledger   +3 more
wiley   +1 more source

Occupational Exposure to UPVC Powder Containing Calcium Carbonate (CaCO3) Nanoparticles: A Cross‐Sectional Biological Monitoring and Qualitative Risk Assessment

open access: yesHealth Science Reports, Volume 9, Issue 5, May 2026.
ABSTRACT Background and Aims Nanomaterials are widely produced and used due to their unique physicochemical properties. Adding nano calcium carbonate to Unplasticized PolyVinyl Chloride (UPVC) improves durability and sustainability. Studies have shown that occupational exposure to UPVC powder can affect the health of employees.
Neda Mehrparvar   +7 more
wiley   +1 more source

Comparison of Enamel, Dentin, and the Dentin–Enamel Junction in Horse, Dog, Wild Boar, and Macaque Using Confocal Raman Microscopy

open access: yesJournal of Raman Spectroscopy, Volume 57, Issue 5, Page 871-878, May 2026.
Confocal Raman microscopy was used to map the dentin–enamel junction (DEJ) across four mammalian species. Chemical maps highlighted variations in mineral (phosphate/carbonate) and organic (amide/CH) phase. These results provide a comparative Raman framework to link tooth microchemistry with species‐specific structure and function.
Alban Desoutter   +4 more
wiley   +1 more source

Reliable Estimation of Wavenumbers for Calcite Peaks

open access: yesJournal of Raman Spectroscopy, Volume 57, Issue 5, Page 821-827, May 2026.
The wavenumbers of the calcite peaks were accurately estimated using a combination of a He–Ne laser and Ne emission lines. The values following the ± symbol represent the expanded uncertainties, corresponding to an approximate 95% confidence interval. ABSTRACT The Raman‐shift wavenumber ( ∆ν~), which is calculated as the difference between the absolute
Nobuyasu Itoh
wiley   +1 more source

An ultraviolet–visible spectroscopy system for studying real‐time pressure effects on enzyme activity

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 5, May 2026.
Abstract Investigations of hydrostatic pressure effects on microbial enzymatic processing are challenging but critical for understanding element cycling in the world's oceans. In this study, we developed and tested a stainless‐steel pressure cell capable of withstanding up to 110 MPa of hydrostatic pressure (equivalent to ~ 11,000 m depth), featuring ...
Maria Papadimitraki   +6 more
wiley   +1 more source

Cloaking of solar cell contacts at the onset of Rayleigh scattering. [PDF]

open access: yesSci Rep, 2016
San Román E   +10 more
europepmc   +1 more source

Mid‐Infrared Quantum Scanning Microscopy via Visible Light Beyond Spatial Correlations

open access: yesLaser &Photonics Reviews, Volume 20, Issue 9, 6 May 2026.
This work introduces a raster‐scanning approach based on quantum imaging with undetected light (QIUL) that probes samples in the mid‐infrared (MIR) spectral range while performing detection in the visible domain. Unlike previous QIUL implementations, this technique operates independently of photon‐pair spatial correlations and relies solely on induced ...
Josué R. León‐Torres   +6 more
wiley   +1 more source

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