Results 221 to 230 of about 6,429 (270)

Precession-induced millennial climate cycles in greenhouse Cretaceous. [PDF]

Nat Commun
Zhang Z, Huang Y, Wang T, Yin Q, Da Silva AC, Lee EY, Yang H, Ma C, Cheng H, Berger A, Wang C.   +10 more
europepmc   +1 more source

Effect of the Fe Content on the Oxide Film Composition and Corrosion Resistance of Inconel 625: An XPS and Cyclic Potentiodynamic Polarisation Study

Surface and Interface Analysis, Volume 58, Issue 3, Page 151-163, March 2026.
ABSTRACT The present work focuses on investigating the effect of increasing Inconel 625 Fe content on the oxide film composition and corrosion behaviour through XPS and cyclic potentiodynamic polarisation (CPP) studies. Different proportions of ASTM A182 F22 steel and Inconel 625 were arc‐melted to achieve a range of Fe contents (2–15 wt.%) in the ...
J. C. Lourenço, P. Bhuyan, M. I. S. T. Faria, C. A. Nunes, C. R. Tomachuk, M. A. Baker   +5 more
wiley   +1 more source

Mineralogical and chemical characterization of Suez Bay surface sediments via multi-analytical techniques. [PDF]

Sci Rep
Elmorsi RR, Wahhab WA, Abou-El-Sherbini KS.   +2 more
europepmc   +1 more source

Characterization of Respirable Particulate Matter Collected With Cyclones in School Environments of the Metropolitan Region of Rio de Janeiro

X-Ray Spectrometry, Volume 55, Issue 2, Page 366-373, March/April 2026.
ABSTRACT The relevance of investigating atmospheric particulate matter (PM) in the school environment is related to its significant impact on the health of school‐age children. In this context, the present study focuses on the characterization of suspended atmospheric PM in eight elementary schools located in the metropolitan region of Rio de Janeiro ...
J. L. Pereira, F. T. S. Tsuyama, Hamilton S. G. Filho, R. Leitão, C. G. L. Canellas, J. T. Assis, M. J. Anjos   +6 more
wiley   +1 more source

Evolutionary constraints on anuran melanin for 45 million years. [PDF]

iScience
Falk D, Quigley A, Carazo Del Hoyo B, Rossi V, Webb SM, Wings O, McNamara ME.   +6 more
europepmc   +1 more source

Thickness Calculation of Pigment Layers and Gold Leaves Using XRF and MA‐XRF Data

X-Ray Spectrometry, Volume 55, Issue 2, Page 335-348, March/April 2026.
ABSTRACT In this work, XRF and MA‐XRF data were used to estimate the thickness of Chromium Oxide (Cr₂O₃) pigment and gold leaf applied over Lead White (2PbCO3.Pb(OH)2). The thickness determination was based on the differential attenuation of the Pb‐Lα and Pb‐Lβ characteristic X‐rays, which allows correlating the overlying material layer with the Pb(Lα ...
Renato Pereira de Freitas, Ana Letícia Castro de Oliveira, André Rocha Pimenta, Elicardo Alves de Souza Gonçalves, Valter de Souza Felix, Marcelo Oliveira Pereira, Leandro Oliveira Pereira, Rafael Barreto Almada, Raysa Costa Nardes, Marcelino dos Anjos   +9 more
wiley   +1 more source

Lead isotopic evidence for an old and rapid lunar magma ocean. [PDF]

Sci Adv
Zhang YW, Sheng SZ, Wang SJ, Li QL, Hua JX, Li S, Li XH.   +6 more
europepmc   +1 more source

Metals' Adsorption Onto Environmental Microplastics at Shoreline Sediments

X-Ray Spectrometry, Volume 55, Issue 2, Page 349-365, March/April 2026.
ABSTRACT This study assessed trace element concentrations and microplastic (MP) contamination in three sandy beaches on the southern coast of Ilha Grande (Rio de Janeiro, Brazil). Environmental MPs were manually extracted from sand samples, and beaches were classified using the microplastic pollution index (MPPI).
Adriana F. Curty, Fábio Tsuyama, Priscilla M. O. M. Cunha, Marcelino J. Anjos, André L. S. Salomão   +4 more
wiley   +1 more source

Synthesis, characterization, and performance of the Fe-HAp_Bio heterogeneous catalyst for electro-Fenton degradation of cefuroxime sodium. [PDF]

RSC Adv
Haji I, Talidi A, Chakchak H, Rachidi L, Zarrouk A, Kaichouh G.   +5 more
europepmc   +1 more source

A New Surface Rupture of the 1556 Huaxian M ∼ 8.5 Earthquake Revealed by Rock Surface Luminescence Dating of a Bedrock Fault Scarp and Colluvial Wedges

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Bedrock fault scarps and their associated colluvial wedges provide key evidence for reconstructing paleoearthquakes. We apply rock surface luminescence dating to a bedrock scarp on the Huashan fault in central China, using OSL‐depth profiles (DPs) from multiple heights. Results reveal two coseismic displacements of 6.8 and >1.0 m.
Ming Luo, Jie Chen, Zhijun Gong, Lewis A. Owen, Huili Yang, Xiaohong Jiang, Jinhui Yin, Wei Xu, Hua Wang   +8 more
wiley   +1 more source