Results 111 to 120 of about 824,380 (294)

Laterites and paleoclimates. Weathering processes and anthropogenic impact [PDF]

, 2000
The European Union of Geosciences held its 9th biannual meeting in Strasbourg, March 23–27, 1997. During this meeting, Symposium No. 63, Weathering Processes: Mineral deposits and soil formation in tropical enÍironments, was merged with Symposium No. 78,
Chivas, Allan R., Probst, Jean-Luc, Wilson, Jeff   +2 more
core   +2 more sources

Influence of natural fibers on physical, mechanical, and fire‐resistant properties of microconcrete

Structural Concrete, EarlyView.
Abstract This study examined the influence of natural fibers on the physical, mechanical, and fire‐resistant properties of microconcrete, in comparison with conventional polypropylene fibers used in cement composites. The fibers were characterized by FTIR and TGA/DSC to assess their composition and thermal stability, and FTIR was also performed after ...
Ivanka Netinger Grubeša, Sandra Juradin, Silvija Mrakovčić, Lidija Radovanović, Milica Vasić, Huseyin Bilgin   +5 more
wiley   +1 more source

Thermal Degradation and Thermal Decomposition of Plasticized PVC Including POSS Additives for PVC Compounds: Mechanisms, Impact, and Performance of Standards

Journal of Vinyl and Additive Technology, EarlyView.
Additives' structures. ABSTRACT Poly(vinyl chloride) has been a key polymeric material since its commercial production in 1931, demonstrating versatility across numerous industries due to its compatibility with various additives. PVC's inherent properties, flame retardance, durability, and recyclability make it ideal for building and construction ...
Stefano Gardi, Gianluca Sarti, Luca Palin, Enrico Boccaleri, Alberto Frache   +4 more
wiley   +1 more source

d13C pattern of dissolved inorganic carbon in a small granitic catchment: the Strengbach case study (Vosges mountains, France) [PDF]

, 1999
The transfers and origins of dissolved inorganic carbon DIC. were studied for a year in a soil–spring–stream system in the Strengbach catchment, Vosges mountains, France.
Amiotte Suchet, Philippe, Andreux, Francis, Aubert, Dominique, Gauthier-Lafaye, François, Probst, Anne, Probst, Jean-Luc, Viville, Daniel   +6 more
core   +3 more sources

Delamination of Vermiculite into Ultrahigh‐Aspect‐Ratio Nanosheets

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
Efficient ion exchange allows for thermodynamically driven delamination of vermiculite into high‐aspect ratio nanosheets. The applicability of sustainable materials in the packaging industry is currently limited by the poor gas barrier performance of most biodegradable polymers.
Felix Uhlig, Alexander M. Stich, Kevin Hagmann, Sabine Rosenfeldt, Josef Breu   +4 more
wiley   +1 more source

Silicate weathering in the semi-arid Southern Pyrenees during the PETM: lithium isotope evidence [PDF]

Climate of the Past
The Palaeocene-Eocene Thermal Maximum (PETM), a hyperthermal event ∼ 56 Ma ago, allows the Earth system response to abrupt climate change to be explored. Recent investigations link the PETM with a negative lithium isotope (δ7Li) excursion, interpreted as
R. Jaimes-Gutierrez, M. Prieur, D. J. Wilson, P. A. E. Pogge von Strandmann, P. A. E. Pogge von Strandmann, E. Pucéat, T. Adatte, J. E. Spangenberg, S. Castelltort   +8 more
doaj   +1 more source

Sanitation felling against the European spruce bark beetle: A matter of intensity and forest type Tagli fitosanitari contro il bostrico tipografo: una questione di intensità e tipologia forestale

Agricultural and Forest Entomology, EarlyView.
We assess the effect of sanitation felling performed in 2022 in North‐Eastern Italy on bark beetle damage that occurred in 2023 across eight spruce forest types, as evaluated using multispectral satellite imagery. Bark beetle damage was reduced only at very high or very low sanitation felling rates.
Aurora Bozzini, Michele Missoni, Giacomo Santoiemma, Iris Bernardinelli, Rinaldo Comino, Massimo Faccoli   +5 more
wiley   +1 more source

Iron Physiology and Its Impact on Atopic Diseases: An EAACI Taskforce Report

Allergy, EarlyView.
ABSTRACT Iron is essential for oxygen transport, energy metabolism, and immune regulation. Yet iron deficiency is the most common micronutrient disorder across all age groups, affecting nearly one quarter of the global population. Iron deficiency triggers nutritional immunity, a host defense mechanism that withholds and redistributes iron, contributing
Franziska Roth‐Walter, Ioana Agache, Beatriz Cabanillas, Roberto Berni Canani, Pasquale Comberiati, Holger Garn, Cristina Gomez‐Casado, Karin Hufnagl, Ekaterina Khaleva, Gregorio P. Milani, Daniel Munblit, Nikolaos Douladiris, Liam O'Mahony, Frank Redegeld, Carmen Riggioni, Peter K. Smith, Betty van Esch, Emilia Vassilopoulou, Carina Venter, Diego G. Peroni   +19 more
wiley   +1 more source

Ecosystem-bedrock interaction changes nutrient compartmentalization during early oxidative weathering

, 2019
Ecosystem-bedrock interactions power the biogeochemical cycles of Earth's shallow crust, supporting life, stimulating substrate transformation, and spurring evolutionary innovation.
Amistadi, Mary K., Burghelea, Carmen I., Castrejón-Martinez, Ricardo, Chorover, Jon, Domanik, Kenneth J., Dontsova, Katerina, Gaddis, Emily E., Galey, Miranda, Hunt, Edward A., Li, Kexin, Maier, Raina M., Munoz, Elise, Palacios-Menendez, Maria A., Presler, Jennifer K., Reinhard, Christopher T., Roldan-Nicolau, Estefania, Sandhaus, Shana, Vaquera-Ibarra, Maria O., Zaharescu, Dragos G.   +18 more
core   +1 more source

Ceramic Production and Geodiversity in Iron Age Iberia: An Archaeometric Study of Pottery from Castrejón de Capote (SW Spain)

Archaeometry, EarlyView.
ABSTRACT The hillfort of Castrejón de Capote is one of the best investigated settlements of Late Iron Age southwest Iberia. Located in the territory that the classical sources attributed to the Celtici, it was occupied between the early 4th and the 1st centuries bce.
Beatrijs de Groot, Luis Berrocal‐Rangel, Manuel Fernández‐Götz   +2 more
wiley   +1 more source