Results 151 to 160 of about 80,305 (287)

Spectromicroscopy Analysis of Chicken Egg Shells

X-Ray Spectrometry, EarlyView.
ABSTRACT Chicken egg shells, taken from farm and backyard eggs of different suppliers from different regions in Brazil were collected for chemical/structural analysis, in order to try to find if there is a relation between egg shells composition and the type of production (farm or backyard), the egg shell color and the region of production.
Mariana Muniz Delgado Lopes, Sandy Gonzalez Hernandez, Luana Estefani Knaul, Rodrigo Leonardo de Oliveira Basso, Marcelo G. Hönnicke   +4 more
wiley   +1 more source

Environmental Surveillance of SARS-CoV-2 RNA in Wastewater and Groundwater in Quintana Roo, Mexico. [PDF]

Food Environ Virol, 2021
Rosiles-González G, Carrillo-Jovel VH, Alzate-Gaviria L, Betancourt WQ, Gerba CP, Moreno-Valenzuela OA, Tapia-Tussell R, Hernández-Zepeda C.   +7 more
europepmc   +1 more source

Integrated X‐Ray, Gamma Radiation, and Micro‐CT Techniques for Quantitative Wood Characterization

X-Ray Spectrometry, EarlyView.
ABSTRACT The present research integrates microcomputed tomography (micro‐CT), x‐ray fluorescence, and gamma‐ray transmission to quantitatively characterize wood species. A total of 22 samples from seven species were analyzed for density (ρ), linear attenuation coefficient (μ), Compton scattering, micro‐CT gray values (GV), porosity, mass attenuation ...
Roberta M. S. P. Borges, Josiane E. Cavalcante, Isis V. N. S. Franzi, Anderson G. Paula, Roberta G. Leitão, Marcelino José dos Anjos, Ricardo T. Lopes, Davi F. Oliveira   +7 more
wiley   +1 more source

Characterization of sediment microbial communities at two sites with low hydrocarbon pollution in the southeast Gulf of Mexico. [PDF]

PeerJ, 2020
Suárez-Moo P, Lamelas A, Garcia-Bautista I, Barahona-Pérez LF, Sandoval-Flores G, Valdes-Lozano D, Toledano-Thompson T, Polanco-Lugo E, Valdez-Ojeda R.   +8 more
europepmc   +1 more source

Citizens at the forefront of the constitutional debate: Voluntary citizen participation determinants and emergent content in Chile. [PDF]

PLoS One, 2022
Raveau MP, Couyoumdjian JP, Fuentes-Bravo C, Rodriguez-Sickert C, Candia C.   +4 more
europepmc   +1 more source

XAHRM‐Lab First Results and πXRF First View of UFe4Al8 and UFe10Si2

X-Ray Spectrometry, EarlyView.
ABSTRACT Following the installation of the Laboratory for the Characterization and Speciation of Aerosols (LCEA) in 2008, and the confirmation of High Resolution Energy Dispersive Spectrometry (HiREDS) as a much promising development for X‐ray Emission Spectrometry in general and Particle Induced X‐ray Emission (PIXE) in particular, the installation of
M. A. Reis, P. C. Chaves, A. P. Gonçalves, A. G. Karydas   +3 more
wiley   +1 more source

A Novel Dynamic Three-Level Tracking Controller for Mobile Robots Considering Actuators and Power Stage Subsystems: Experimental Assessment. [PDF]

Sensors (Basel), 2020
García-Sánchez JR, Tavera-Mosqueda S, Silva-Ortigoza R, Hernández-Guzmán VM, Marciano-Melchor M, Rubio JJ, Ponce-Silva M, Hernández-Bolaños M, Martínez-Martínez J.   +8 more
europepmc   +1 more source

Sum Peaks in a Total Reflection X‐Ray Fluorescence Spectrum of the Dry Residue of a Solution Sample Containing Ca

X-Ray Spectrometry, EarlyView.
ABSTRACT In this study, sum peaks related to the Ca Kα line (3.69 keV) were observed in total reflection X‐ray fluorescence spectra of dry residues of a solution sample containing a large amount of Ca, which were measured with a silicon drift detector. When dry residues containing 1 μg of Ca were measured, a peak that would be the sum peak of the Si Kα
Yume Kubota, Masahide Wada, Kosei Oikawa, Yusaku Oki, Shinsuke Kunimura   +4 more
wiley   +1 more source

Evaluación, aplicación, difusión y abastecimiento de un sistema de generación eólica

Campus, 2015
Esta investigación se inició debido a la baja difusión de la utilización de la energía eólica en nuestro país y pretende ser un ejemplo para aumentar el uso y la difusión de este tipo de energía renovable. Es básicamente una evaluación de la utilización
Ana Quispe
doaj  

Sentiment and emotion in financial journalism: a corpus-based, cross-linguistic analysis of the effects of COVID. [PDF]

Humanit Soc Sci Commun, 2023
Vargas-Sierra C, Orts MÁ.
europepmc   +1 more source