Results 111 to 120 of about 36,967 (295)

Atmospheric Calorimetry above 10$^{19}$ eV: Shooting Lasers at the Pierre Auger Cosmic-Ray Observatory

, 2008
The Pierre Auger Cosmic-Ray Observatory uses the earth's atmosphere as a calorimeter to measure extensive air-showers created by particles of astrophysical origin. Some of these particles carry joules of energy.
[Pierre Auger Collaboration], Bleve C [Pierre Auger Collaboration], Fick B, Keilhauer B [Pierre Auger Collaboration], Keilhauer B [Pierre Auger Collaboration], Knapik R [Pierre Auger Collaboration], Lawrence Wiencke, Nitz D [Pierre Auger Collaboration], Pierre Auger Collaboration [J Abraham ], Pierre Auger Collaboration [J Abraham ], Prouza M [Pierre Auger Collaboration], S Y BenZvi [Pierre Auger Collaboration], Smith J D, SY BenZvi [Pierre Auger Collaboration], the Pierre Auger Collaboration   +14 more
core   +1 more source

Engineered Metal–Organic Frameworks‐Based Materials for Environmental Detection

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Engineered metal–organic frameworks (MOFs) regulated by various material modification strategies are discussed for environmental contaminant detection under different sensing mechanisms, providing future improvements of MOFs in environmental detection. Sensitive and selective detection of contaminants is crucial for environmental protection.
Pan Gao, Song Wang, Yuechao Yao, Yibo Dou   +3 more
wiley   +1 more source

Prediction of soil fertility properties in Southern Brazil via proximal sensing

Anais da Academia Brasileira de Ciências
Although proximal sensing coupled with machine learning (ML) algorithms have been successful for characterizing soils, questions remain regarding their effectiveness under varied soil conditions.
STEFAN D. NACHTIGALL, MARCELO MANCINI, RENATA A. REIS, ELIAS FRANK DE ARAÚJO, MARCO AURÉLIO C. CARNEIRO, NILTON CURI, SÉRGIO HENRIQUE GODINHO SILVA   +6 more
doaj   +1 more source

FLUORESCÊNCIA DE RAIOS X POR DISPERSÃO DE ENERGIA APLICADA À CARACTERIZAÇÃO DE TIJOLOS DE SÍTIOS HISTÓRICOS DE PERNAMBUCO

Clio Arqueológica, 2019
No presente trabalho são 1 apresentados os resultados de estudos por fluorescência de raios X de tijolos brasileiros. Neste estudo foram avaliados 22 tijolos, sendo sete de Igarassu, dois do Forte do Brum e 13 de Olinda.
Helen Jamil Khoury, Roberto Araújo, Sandra de Brito Barreto, Viviane Khoury Asfora   +3 more
doaj   +1 more source

LibCPIXE: a PIXE simulation open-source library for multilayered samples

, 2007
Most particle induced X-ray emission (PIXE) data analysis codes are not focused on handling multilayered samples. We have developed an open-source library called "LibCPIXE", for PIXE data analysis. It is written in standard C and implements functions for
Brandt, C. Pascual-Izarra, Fazinić, Krause, M.A. Reis, Maxwell, N.P. Barradas, Paul, Reis, Reis, Scofield, Scofield, Ziegler   +12 more
core   +1 more source

Dual‐Mode Electrophoretic Displays Enabled by Quantum Dot‐Decorated PR48:2 Pigment Particles and TiO2 for All‐Weather Visibility, Excellent Bistability, and Enhanced Readability

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a novel quantum dot electrophoretic display (QDEPD), which combines electro‐controlled reflection and optically‐triggered emission to achieve efficient multi‐modal switching within a single pixel. By incorporating multi‐component nanostructures, the system enhances functional integration and multi‐modal response capabilities.
Xingke Zheng, Yun Ye, Hongxing Xie, Yuanyi Liu, Ruihan Lin, Guangyou Liu, Tianyong Guan, Enguo Chen, Tailiang Guo   +8 more
wiley   +1 more source

Evaluation of Artifacts Produced by a Commercial Portable XRF Device and their Influence on the Analysis of Artworks

Semina: Ciências Exatas e Tecnológicas
This study investigates the origin and impact of spectral interferences associated with the Bruker Tracer III portable X-ray fluorescence (pXRF) spectrometer, used by the authors for elemental characterization of cultural heritage objects.
Roberta Manon de Paula Sales Borges, Josiane Emerich Cavalcante, Isis Verona Nascimento da Silva Franzi, Anderson Gomes de Paula, Evelyne Azevedo, Ricardo Tadeu Lopes, Davi Ferreira de Oliveira   +6 more
doaj   +1 more source

Validation of in vivo toenail measurements of manganese and mercury using a portable X-ray fluorescence device. [PDF]

J Expo Sci Environ Epidemiol, 2022
Specht AJ, Zhang X, Young A, Nguyen VT, Christiani DC, Ceballos DM, Allen JG, Weuve J, Nie LH, Weisskopf MG.   +9 more
europepmc   +1 more source

Spherical Nucleic Acid Stabilized Cage Type Three‐Dimensional Electrochemiluminescence Probe for Sensitive and Amplification‐Free Diagnosis of Infectious Diseases

Exploration, EarlyView.
This work developed a spherical nucleic acid stabilized cage‐type 3D electrochemiluminescence reporter probe for amplification‐free and ultrasensitive detection of pathogenic. Furthermore, a hand‐held detection device was designed, and we established a straightforward workflow enabling sample to answer within 15 min.
Yu Fu, Wenlu Song, Jinyan Lin, Wei Wang, Lunjing Liu, Wenjie Wu, Huiyi Yang, Jingru Wang, Yang Yang, Bowen Shu, Yideng Jiang, Yuhui Liao   +11 more
wiley   +1 more source

Content of chemical elements in Pinus sylvestris pine needles [PDF]

BIO Web of Conferences
Plant organisms absorb heavy metals and pollutants from the atmosphere and are actively used in phytoremediation methods, being in fact a “filter” of ecosystems.
Potashkina Yustina
doaj   +1 more source