Results 151 to 160 of about 39,588 (332)

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Assessing data reliability for AI-driven volcanic rock dating: A comparison of electron microprobe and laser ablation mass spectroscopy

Applied Computing and Geosciences
This study explores the integrationof artificial intelligence (AI) and modern data analytics for accurately predicting and classifying three distinct periods of volcanic activity.
Ali Salimian, Megan Watfa, Ram Grung, Lorna Anguilano   +3 more
doaj   +1 more source

Bismuth fire assay preconcentration and empirical coefficient LA-ICP-MS for the determination of ultra-trace Pt and Pd in geochemical samples. [PDF]

Sci Rep, 2022
Ni W, Mao X, Yao M, Guo X, Sun Q, Gao X, Zhang H.   +6 more
europepmc   +1 more source

Appendix 1. Supplementary LA-ICP-MS data [PDF]

Archaeologia Austriaca, 2018
Michael Brandl, Christoph Hauzenberger
openaire   +1 more source

Origin of the ungrouped achondrite NWA 4518: mineralogy and geochemistry of FeNi-metal [PDF]

, 2011
Ungrouped achondrite NWA 4518 is an ultramafic breccia with abundant siderophile rich IIA-like metal. Its silicate chemistry is similar to that of WINs, HEDs, and silicate inclusions of IIE irons.
Franchi, I., Greenwood, R., Humayun, M., Ivanova, M. A., Lorenz, C. A., Teplyakova, S. N.   +5 more
core  

Bioorthogonal Photoactivation of 2‐Nitrobenzyl Caged Doxorubicin Anticancer Prodrugs on Gold Nanostars

Advanced Materials, EarlyView.
Bioorthogonal chemistry was applied to intracellularly photoactivate Doxorubicin (Dox) using gold nanostars (AuNSt) and near‐infrared (NIR) light. Two prodrugs were used: one photoactivatable, masked with 2‐nitrobenzyl carbamate (proDox1) and another photolabile, masked with 2‐nitrobenzyl diol (proDox2), which was attached to the AuNSt surface.
Juan José Esteve‐Moreno, Andrea Escudero, Oscar Ferreira Silvestre, José Manuel Terrés, Mónica Gorbe, Eva Garrido, Carlos Renero‐Lecuna, Judith Langer, María Alfonso, Javier Ibañez, Félix Sancenón, Roberto Cao‐Milán, Luis M. Liz‐Marzán, Alba García‐Fernández, Andy Hernández‐Montoto, Ramón Martínez‐Máñez   +15 more
wiley   +1 more source

Precise determination of major and trace elements in micrometer-scale ilmenite lamellae in titanomagnetite using LA-ICP-MS technique: application of regression analysis to time-resolved signals. [PDF]

RSC Adv, 2023
Liu SQ, Jiang SY, Chen W, Wang CY, Su HM, Cao Y, Zhang HX, Li WT.   +7 more
europepmc   +1 more source

Combined Use of multiple external and internal standards in LA-ICP-MS analysis of bulk geological samples using lithium borate fused glass

, 2023
Richard M. Conrey, David G. Bailey, Jared W. Singer, L. J. Wagoner, B. Parfitt, J. Hay, O. Keh, Z. Chang, Shiqiang Huang   +8 more
openalex   +1 more source

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

Advanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 more
wiley   +1 more source

La teoría de la información aplicada al análisis cualitativo de identificación

Tecnología en Marcha, 2005
Se aplicó la teoría de la información al análisis cualitativo con el fin de determinar la selectividad de tres metodologías analíticas aplicadas al análisis de elementos traza en aguas y material foliar, a saber: Pb y Cd por Voltamperometría de Despojo ...
Ana Lorena Alvarado Gámez, Rigoberto Blanco Sáenz   +1 more
doaj   +2 more sources