Results 121 to 130 of about 35,817 (223)

Polymer‐clay nanocomposite hydrogels with multiple responses to multiple stimuli

Responsive Materials
Hydrogels are widely studied for their stimuli‐responsive properties. They adapt to external stimuli, including physical, chemical and biological ones. To enhance adaptability in complex environments, multi‐responsive hydrogels have been developed, which
Ploypailin Milin Saengdet, Makoto Ogawa
doaj   +1 more source

Depositional Facies, Sequence Stratigraphy, and Diagenesis of Lower Cretaceous Carbonate Reservoir, Southern Iraq: Implications for Petroleum Exploration

Journal of Petroleum Geology, Volume 49, Issue 2, Page 312-345, April 2026.
ABSTRACT The Lower Cretaceous Yamama Formation of southern Iraq represents a key carbonate reservoir within Iraq and the Middle East, yet its complex depositional facies architecture and diagenetic alterations present challenges for predicting reservoir quality.
A. K. A. Mohammed, F. Velledits, I. Q. Mohammed, M. Alsuwaidi, H. Mansurbeg, F. Kristály, D. K. Ivanova, Eloi González‐Esvertit, A. Awdal   +8 more
wiley   +1 more source

The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)

Sedimentology, Volume 73, Issue 3, Page 802-837, April 2026.
ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti, Marta Barbarano, Mara Limonta, Guido Pastore, Pieter Vermeesch, Giovanni Vezzoli   +5 more
wiley   +1 more source

The electrorheology of suspensions consisting of Na-Fluorohectorite synthetic clay particles in silicon oil

, 2010
Under application of an electric field greater than a triggering electric field $E_c \sim 0.4$ kV/mm, suspensions obtained by dispersing particles of the synthetic clay fluoro-hectorite in a silicon oil, aggregate into chain- and/or column-like ...
B. Schjelderupsen, Felici N., Hao T., J. O. Fossum, K. P. S. Parmar, Macosko C., Méheust Y., Y. Méheust   +7 more
core   +3 more sources

Glen Torridon Mineralogy and the Sedimentary History of the Clay Mineral Bearing Unit [PDF]

Clay minerals are common in ancient terrains on Mars and their presence at the surface alludes to aqueous processes in the Noachian to Early Hesperian (>3.5 Ga). Gale crater was selected as Curiositys landing site largely because of the identification of
Achilles, C. N., Bennett, K. A., Blake, D. F., Bristow, T. F., Castle, N., Chipera, S. J., Craig, P. I., Downs, G. W., Downs, R. T., Fox, V. K., Grotzinger, J. P., Gupta, S., Hazen, R. M., Mahaffy, P. R., Malespin, C.A., Marais, D. J. Des, McAdam, A. C., Ming, D. W., Morris, R. V., Morrison, S. M., Rampe, E. B., Thorpe, M. T., Treiman, A. H., Tu, V., Vaniman, D. T, Vasavada, A. R., Yen, A. S.   +26 more
core   +1 more source

Cretaceous-Paleogene boundary (KPB) Fish Clay at Højerup (Stevns Klint, Denmark): Ni, Co, and Zn of the black marl

Geologica Acta, 2009
The black marl of the Fish Clay at Højerup is mainly made up of biogenic calcite and cheto-Mg-smectite. We suggest that the formation of the smectite occurred during the latest Maastrichtian (or earlier) and that it represents a short period of rapid ...
P.I. PREMOVIC, B.Ž. TODOROVIĆ, M.N. STANKOVIĆ   +2 more
doaj  

Phyllosilicate Transitions in Ferromagnesian Soils: Short-Range Order Materials and Smectites Dominate Secondary Phases [PDF]

Analyses of X-ray diffraction (XRD) patterns taken by the CheMin instrument on the Curiosity Rover in Gale crater have documented the presence of clay minerals interpreted as smectites and a suite of amorphous to short-range order materials termed X-ray ...
Azua, B., Feldman, A. D., Hausrath, E. M., Peretyazhko, T. S., Rampe, E. B., Tschauner, O.   +5 more
core   +1 more source

Differentiation of substance composition in the Typical Agrochernozems (Haplic Chernozems) of the Western Ukrainian Forest-Steppe

Журнал Белорусского государственного университета: География, геология, 2017
The study found in the Wet Atlantic facies of the Forest-Stepper Сhernozems of Ukraine soil formation leads to the vertical redistribution of Chernozem soil substance and formation of the mineral soil profile differentiated to varying degrees by ...
Ihor Y. Papish
doaj  

Impact contribution of prebiotic reactants to Earth [PDF]

It is proposed that the AIB amino acid at the K/T boundary were synthesized during entry of a comet. However, whether they were synthesized or supplied directly from space, the concentration of amino acids in the shallow K/T sea would have been about 10 ...
Aggarwal, Hans R.
core   +1 more source

Batch adsorption treatment of poultry slaughter-house wastewater using modified Tunisian smectite for organic pollutant removal. [PDF]

Poult Sci
Sayah N, Ben Jmaa S, Yahya K, Bendif H, Elfalleh W, Hamdi N, Jridi M.   +6 more
europepmc   +1 more source