Results 51 to 60 of about 9,686 (212)

A week of automated continuous measurements of temperature, pH and specific conductance in a mining-polluted river in Sardinia (Italy): The effect of rainfall as a case of serendipity

Mineralogia
This study presents a week of high-frequency automated measurements of temperature, pH and specific conductance collected every 15 min at two locations along the Rio Irvi (SW Sardinia, Italy), a river heavily affected by past mining activity.
Frau Franco
doaj   +1 more source

Pedogênese de uma seqüência de solos desenvolvidos de arenito na região de Piracicaba (SP)

Revista Brasileira de Ciência do Solo, 2001
O trabalho abordou a formação de solos com horizonte B textural e teve por objetivo identificar os processos pedogenéticos envolvidos na formação de lamelas, do gradiente textural abrupto, assim como suas implicações sobre os atributos físicos, químicos ...
A. L. Mafra, E. F. Silva, M. Cooper, J. L. I. Demattê   +3 more
doaj   +1 more source

Ru‐Doped Fe₂TiO₅ as a High‐Performance Electrocatalyst for Urea‐Assisted Water Splitting

Small, Volume 21, Issue 41, October 16, 2025.
Ru doping in Fe₂TiO₅ enhances urea oxidation reaction (UOR) kinetics by inducing structural distortion and creating favorable adsorption sites. The optimized 2−xRuxTiO5 exhibits superior performance with a lower onset potential and robust durability, demonstrating its potential as an efficient electrocatalyst beyond traditional photocatalytic ...
Kassa Belay Ibrahim, Karim Harrath, Mohammadhossein Hamrang, Matteo Bordin, Stéphanie Bruyère, David Horwat, Enrique Rodríguez‐Castellón, Marshet Getaye Sendeku, Pratik Shinde, Danilo Oliveira de Souza, Luca Olivi, Alberto Vomiero, Elisa Moretti, Tofik Ahmed Shifa   +13 more
wiley   +1 more source

9. Reunion de la Sociedad EspaNola de Mineralogia

, 1989
Available from Centro de Informacion y Documentacion Cientifica CINDOC. Joaquin Costa, 22. 28002 Madrid.
Sociedad EspaNola de Mineralogia, Madrid (Spain)
core  

Características e efeito da fração granulométrica < 2 µm no comportamento de queima de uma argila Characteristics and effect of the granulometric fraction < 2 µm on the firing behavior of a clay

Cerâmica, 2007
Este trabalho tem por objetivo caracterizar a chamada "fração argila", isto é, com fração granulométrica < 2 µm, e avaliar por meio de dilatometria, análise termogravimétrica e térmica diferencial, e difração de raios X, seu efeito no comportamento de ...
C. M. F. Vieira, L. A. Terrones, R. Sánchez, S. N. Monteiro   +3 more
doaj   +1 more source

Optimized bifunctional CuNiMgAl catalysts for efficient synthesis of the renewable bioproduct glycerol carbonate

Biofuels, Bioproducts and Biorefining, Volume 19, Issue 5, Page 1271-1288, September/October 2025.
Abstract This paper presents a novel technology for converting glycerol, a byproduct of the biodiesel industry, into glycerol carbonate, a high‐value bioproduct. The effect of calcination temperature on the synthesis of quaternary Cu‐Ni‐Mg‐Al catalysts (MMO‐Cu15Ni15‐Tz) and their application in the transesterification reaction was investigated ...
Dalma S. Argüello, Isabel Barroso‐Martín, Nancy F. Bálsamo, Griselda A. Eimer, Mónica E. Crivello, Enrique Rodríguez‐Castellón   +5 more
wiley   +1 more source

Pd Nanoparticles Supported on Activated Carbon and Their Application in the Oxidative Condensation Reaction of Furfural: Effect of Base and Oxidizing Agent on Catalytic Behavior and Deactivation

ChemCatChem, Volume 17, Issue 17, September 5, 2025.
Catalysts with varying palladium (Pd) loading supported on activated carbon were assessed for their effectiveness in the oxidative condensation of furfural. Furan‐2‐acrolein was the primary product, depending on the palladium content. Reusability tests showed a decline in the yield of furan‐2‐acrolein.
Rocío Maderuelo Solera, Eleonora Monti, Ramón Moreno‐Tost, Cristina García‐Sancho, Pedro Maireles‐Torres, Juan Antonio Cecilia, Nikolaos Dimitratos   +6 more
wiley   +1 more source

7. Reunion de la Sociedad EspaNola de Mineralogia

, 1988
Available from Centro de Informacion y Documentacion Cientifica CINDOC. Joaquin Costa, 22. 28002 Madrid.
Sociedad EspaNola de Mineralogia, Madrid (Spain), Velasco, F. (ed.)   +1 more
core  

Late Cretaceous age of magmatism at Vršatec in the Pieniny Klippen Belt, Western Carpathians, Slovakia

Mineralogia
Volcanic rocks in the Pieniny Klippen Belt (PKB) of the Western Carpathians have been the focus of geologists for over a century (e.g. Uhlig, 1890; Małkowski, 1921). Miocene volcanism is most common in the PKB.
Bazarnik Jakub, Matejová Marína Molčan, Lenik Piotr, Plašienka Dušan, Potočný Tomáš, Pańczyk Magdalena   +5 more
doaj   +1 more source

Pedogenic iron oxides in soils of the Acre State, Brazil

Ciência Rural, 2018
: Iron oxides are environmental indicators and influence on physical and chemical behavior of soils. This research aimed to identify and characterize pedogenic iron oxides in soils of the Acre state, Brazil.
Alberto Vasconcellos Inda, Jessé Rodrigo Fink, Tatiele Fruett dos Santos   +2 more
doaj   +1 more source