Results 71 to 80 of about 6,902 (265)

Portable X-ray fluorescence (pXRF) spectrometry applied to the prediction of chemical attributes in Inceptisols under different land uses

Ciência e Agrotecnologia
Portable X-ray fluorescence (pXRF) spectrometry has been increasingly adopted for varying studies worldwide. This work aimed at characterizing effects of soil management on the content of chemical elements detected by pXRF in managed and unmanaged areas ...
Anita Fernanda dos Santos Teixeira, David C. Weindorf, Sérgio Henrique Godinho Silva, Luiz Roberto Guimarães Guilherme, Nilton Curi   +4 more
doaj   +1 more source

pXRF Data Evaluation Methodology for On-Site Analysis of Precious Artifacts: Cobalt Used in the Blue Decoration of Qing Dynasty Overglazed Porcelain Enameled at Customs District (Guangzhou), Jingdezhen and Zaobanchu (Beijing) Workshops

The Heritage, 2022
In a noninvasive determination, Raman and XRF analyses showed the possibility of identifying specific phases and elements characteristic of the use of recipes and ingredients imported from Europe, according to the information documented in Chinese and ...
P. Colomban, Gulsu Simsek Franci, M. Gironda, Pauline d’Abrigeon, Anne Schumacher   +4 more
semanticscholar   +1 more source

Portable X‐Ray Fluorescence in the Assessment of Zinc Along Grizzly Bear Hair

X-Ray Spectrometry, Volume 55, Issue 3, Page 473-482, May/June 2026.
ABSTRACT As a biomarker of past uptake of zinc, hair presents an interesting option since its growth can provide a stored record over time. This study investigates the distribution of zinc in hairs gathered from a series of grizzly bears ( Ursus arctos horribilis ).
David E. B. Fleming, Ethan D. W. Briand, Jennie R. Christensen   +2 more
wiley   +1 more source

Distinguishing Soil Horizons of Alfisols Using MIR, Vis–NIR, and XRF Spectra

European Journal of Soil Science, Volume 77, Issue 3, May–June 2026.
ABSTRACT We studied horizonation of 150 Alfisols on a research farm in Wisconsin, USA. Most of these Alfisols had developed in loess covering dense glacial till; common horizons were an Ap over a glossic horizon (E/Bt or Bt/E) over a Bt covering the glacial till (2Bt). In addition to field identification, we distinguished the horizons by combining soil
Gafur Gozukara, Alfred E. Hartemink, Eric O. Young, Yakun Zhang   +3 more
wiley   +1 more source

Elemental concentration via portable x-ray fluorescence spectrometry: Assessing the impact of water content

Ciência e Agrotecnologia
Portable X-ray fluorescence (pXRF) analysis can be considered one of the main recent advances for chemical characterization of earth materials. The water content of the samples can affect the pXRF performance.
Monna Lysa Teixeira Santana, Geila Santos Carvalho, Luiz Roberto Guimarães Guilherme, Nilton Curi, Bruno Teixeira Ribeiro   +4 more
doaj   +1 more source

Izu-Bonin-Mariana Rear Arc - The missing half of the subduction factory, 30 March – 30 May 2014 [PDF]

, 2014
International Ocean Discovery Program (IODP) Hole U1436A (proposed Site IBM-4GT) lies in the western part of the Izu fore-arc basin, ~60 km east of the arc-front volcano Aogashima, ~170 km west of the axis of the Izu-Bonin Trench, 1.5 km west of Ocean ...
Andrews, G. D. M., Barker, A. K., Berger, J. L. R., Blum, P., Bongiolo, E. M., Bordiga, M., Busby, C. J., DeBari, S. M., Gill, J. B., Guèrin, G., Hamelin, C., Jia, Jihui, John, E. H., Jonas, A.-S., Jutzeler, M., Kars, M. A. C., Kita, Z. A., Konrad, K., Mahony, S. H., Martini, M., Miyazaki, T., Musgrave, R. J., Nascimento, N. B., Nichols, A. R. L., Ribeiro, J. M., Sato, T., Schindlbeck, J. C., Schmitt, A. K., Straub, S. M., Tamura, Y., Vautravers, M. J., Yang, Yang   +31 more
core   +1 more source

Technological Properties of Biocomposites Produced With Agro‐Industrial Castor Waste Applicable in the Thermal Insulation of Buildings

Polymer Composites, Volume 47, Issue 8, Page 7360-7378, 20 April 2026.
Biocomposites produced with agro‐industrial waste from castor hulls and pinewood bonded with urea‐formaldehyde adhesive, intended for application as thermal insulation in buildings. ABSTRACT The production of composite particleboards with agricultural waste has been the focus of many studies that aim to address environmental problems due to waste ...
Thamirys Andrade Lopes, Douglas Lamounier Faria, Felipe Gomes Batista, Adriele de Lima Felix, Antônio Claret Matos, Mário Vanoli Scatolino, Julio Soriano, Lourival Marin Mendes   +7 more
wiley   +1 more source

Ceramic composition at Chalcolithic Shiqmim, northern Negev desert, Israel: investigating technology and provenance using thin section petrography, instrumental geochemistry and calcareous nannofossils [PDF]

, 2018
Technological innovations in ceramic production and other crafts are hallmarks of the Chalcolithic period (4500–3600 BCE) in the southern Levant, but details of manufacturing traditions have not been fully investigated using the range of analytical ...
Burton, Margie M, Levy, Thomas E, Quinn, Patrick S, Tamberino, Anthony   +3 more
core  

Tracking the Dynamics of human Colonisation and Adaptation in Central Vanuatu: Preliminary Results From Excavation and Survey at Pangpang, East Efate

Archaeology in Oceania, Volume 61, Issue 1, Page 221-236, April 2026.
ABSTRACT In October 2022 an extensive archaeological landscape was identified by staff of the Vanuatu Cultural Centre at Pangpang on the east coast of Efate Island in central Vanuatu. It included midden deposits on the banks of the Pangpang River near the sea at Forari Bay where Lapita and Early Erueti‐style pottery sherds were recovered.
Stuart Bedford, Iarawai Phillip, Lucas Sarvanu, Edson Willie, Stuart Hawkins, Robert Henderson, Frédérique Valentin, Siri Seoule, Emily Nutman, Phillip Parton   +9 more
wiley   +1 more source

Archaeological Testing and Monitoring of a Service Drive at Mission San Juan Capistrano, San Antonio, Texas [PDF]

, 2000
Archaeological testing for the installation of a new service drive and monitoring the removal of the existing service drive at Mission San Juan Capistrano was conducted in November, 1997 and October, 1999 respectively, by the Center for Archaeological ...
Cargill, Diane A., Robinson, Rick C.
core   +2 more sources