Results 121 to 130 of about 32,241 (310)

Chemical weathering of the volcanic soils of Isla Santa Cruz (Galápagos Islands, Ecuador) [PDF]

, 2014
We present a study on weathering of volcanic soils using 43 profiles (131 horizons) sampled in Santa Cruz Island (Galapagos Islands). Several weathering indices, based on chemical composition, are used. Since the geological material is highly homogeneous
Ferro, C, Martínez-Cortízas, A, Rodríguez-Lado, L, Stoops, Georges, Taboada, T   +4 more
core   +1 more source

Characterization of halloysite-water nanofluid for heat transfer applications [PDF]

, 2014
Nanofluids based on water with halloysite (Hal) nanotubes were prepared and characterized in order to evaluate its suitability to be used as a heat transfer fluid.
Alberola-Borràs, Jaume-Adrià, Cabedo, Luis, Hernandez, Leonor, Juliá Bolívar, José Enrique, Mondragon, Rosa   +4 more
core   +1 more source

Naphthalene sorption on red clay and halloysite modified by quaternary ammonium salts

Adsorption Science & Technology, 2017
Sorption of naphthalene on modified red clay and halloysite was carried out successfully. It was established that the process was of pseudo-second-order mechanism. The maximum sorption capacities were 9.23 mg/g and 112.79 mg/g for red clay and halloysite,
Agnieszka Gładysz-Płaska, Agnieszka Lipke, Bogdan Tarasiuk, Magdalena Makarska-Białokoz, Marek Majdan   +4 more
doaj   +1 more source

Landslide Character and Hydrological Thresholds for Slope Failure Initiation on Volcanic Scoria Slopes: Case Study From Mt Hobson/Ōhinerau, Auckland, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
Rainfall‐induced landslides involving on Auckland Volcanic Field scoria cones are highly unusual, compared with widespread landsliding in the surrounding Auckland clay‐rich residual soils. Indeed, while Auckland can suffer from thousands of rainfall‐induced shallow landslides from severe storms at subdecadal timescales, these are usually limited to ...
Beatrice Bertelli, Martin Brook
wiley   +1 more source

SIGNIFICANCE OF BATH TEMPERATURE IN LOADING HALLOYSITE NANOTUBE WITH A CORROSION INHIBITOR

Platform, a Journal of Engineering, 2020
Smart anti-corrosion coatings have gained importance over the last few decades due to its significant properties and the ability to protect metals over a long time.
Subhalakshmi Suresh Kumar , Saeid Kakooei , Mokhtar Che Ismail , Muhammad Haris   +3 more
doaj  

Successive Mechanical Recycling of Poly(lactic Acid) by Injection Molding: Evolution of Molecular, Thermal, and Mechanical Properties

Macromolecular Materials and Engineering, Volume 311, Issue 3, March 2026.
This study investigated how successive injection molding recycling affects the properties of poly(lactic acid) (PLA). Gel permeation chromatography showed a two‐thirds molar mass reduction after ten reprocessing cycles. Differential scanning calorimetry revealed lower glass transition and cold crystallization temperatures.
László Lendvai, Virág Luca Bódi, Martin Danko, Petar Sabev Varbanov, Sándor Kálmán Jakab   +4 more
wiley   +1 more source

Dose‐Dependent Effects of Biochar on Soil Revealed by Fast Field‐Cycling (FFC) NMR: From Molecular Water Dynamics to Soil Functionality

Magnetic Resonance in Chemistry, Volume 64, Issue 3, Page 349-364, March 2026.
Dose–response of biochar in a clay soil: fifteen mixtures (fBC 0–1) reveal nonlinear thresholds (pH/EC) and sharp WHC gains near fBC ≈ 0.3–0.5. Coupled FT‐IR and FFC‐NMR (0.01–10 MHz; ModelFree τc distributions) link water dynamics to soil functionality.
Calogero Librici, Paola Bambina, Ettore Madonia, Veronica Ciaramitaro, Delia Francesca Chillura Martino, Paolo Lo Meo, Pellegrino Conte   +6 more
wiley   +1 more source

Selective functionalization of halloysite cavity by click reaction: structured filler for enhancing mechanical properties of bionanocomposite films [PDF]

, 2014
Selective modification of the inner surface of halloysite nanotubes (HNTs) by the cycloaddition of azides and alkynes (click reaction) was successfully achieved. Fourier transform infrared spectroscopy and thermogravimetry confirmed that the modification
Arcudi, F, CAVALLARO, Giuseppe, LAZZARA, Giuseppe, MASSARO, Marina, MILIOTO, Stefana, NOTO, Renato, RIELA, Serena   +6 more
core   +1 more source

Synthesis and characterization of novel halloysite-agar-Ni0.5Zn0.5Mn2O4 composite for efficient methylene blue dye removal

Next Materials
In this research work, An innovative halloysite-agar -Ni₀.₅Zn₀.₅Mn₂O₄ nanocomposite was successfully synthesized by incorporating halloysite and Ni0.5Zn0.5Mn2O4 into agar networks through cross-linking with Epichlorohydrin.
Khawla Benyahia, Hafida Sehil, Abdelkader Chougui, Abdel-Hamid I. Mourad, Abdelkader Dehbi, Nizamudeen Cherupurakal, Reem H. Alzard   +6 more
doaj   +1 more source

Mineralogical Classification of CRISM Hyperspectral Data Under Uncertainty With Hybrid Neural Networks

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Orbital remote sensing observations are a lynchpin of planetary science research. Hyperspectral infrared spectroscopy in particular is key for planetary mineralogical exploration, for example, CRISM for Mars, as this underpins our understanding of the distribution of specific lithologies and the geological process leading to their formation ...
Robert Platt, Rossella Arcucci, Cédric M. John   +2 more
wiley   +1 more source