Results 91 to 100 of about 35,817 (223)

Automated Ultrafiltration Device for Environmental Nanoparticle Research and Implications: A Review

Micromachines, 2013
Nanoparticle research and development have brought significant breakthroughs in many areas of basic and applied sciences. However, efficiently collecting nanoparticles in large quantities in pure and natural systems is a major challenge in nanoscience ...
Ming K. Wang, Ya N. Wang, Yu M. Chou, Yue M. Chen, Tsung M. Tsao   +4 more
doaj   +1 more source

Spatiotemporal evolution, mineralogical composition, and transport mechanisms of long-runout landslides in Valles Marineris, Mars [PDF]

, 2020
Long-runout landslides with transport distances of >50 km are ubiquitous in Valles Marineris (VM), yet the transport mechanisms remain poorly understood.
Ehlmann, Bethany L., Watkins, Jessica A., Yin, An   +2 more
core  

Controlled Synthesis of Carbon-Encapsulated Copper Nanostructures by Using Smectite Clays as Nanotemplates [PDF]

, 2012
Rhomboidal and spherical metallic-copper nanostructures were encapsulated within well-formed graphitic shells by using a simple chemical method that involved the catalytic decomposition of acetylene over a copper catalyst that was supported on different ...
Bird, Bom, Briggs, Burda, Dai, Dhas, Dongil, Eastman, Ebina, Eklund, El-Sayed, Espinós, Fleisch, Gangopadhyay, Georgakilas, Gournis, Gournis, Gournis, Grouchko, Huang, Jankovič, Jolley, Kelly, Kodama, Koratkar, Maccallini, Mosser, Ohde, Park, Pavlidis, Pileni, Rao, Reina, Seraphin, Strohmeier, Su, Sun, Takagi, Tomita, Tsoufis, Tsoufis, Tsoufis, Vitulli, Vukojević, Wang, Wu, Yamada, Yeh   +47 more
core   +4 more sources

Magma and Volatile Pathways Beneath Sakurajima Volcano From Self‐Potential, Helium Isotopes, and Broadband Magnetotellurics

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract At frequently erupting volcanoes, magma and volatiles ascend through established pathways, but the complete picture of their branching and supply system remains unclear. We integrated self‐potential (SP), broadband magnetotelluric (MT), and helium isotope observations to image magma and volatile pathways beneath Sakurajima Volcano.
K. Aizawa, T. Koyama, H. Hase, M. Uyeshima, H. Sumino   +4 more
wiley   +1 more source

Using small-angle X-ray scattering to investigate the compaction behaviour of a granulated clay [PDF]

, 2015
The compaction behaviour of a commercial granulated clay (magnesium aluminium smectite, gMgSm) was investigated using macroscopic pressure-density measurements, X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray microtomography (XμT) and ...
Aguzzi, Asare-Addo, Aulton, Baille, Barbara R. Conway, Baruchel, Beckett, Berisso, Briscoe, Busignies, Chipera, Djemai, Enes Šupuk, Feigin, Francis Sweeney, German, Hammond, Han, Ito, Kandeil, Kim, Kofi Asare-Addo, Kuklíc, Laity, Laity, Laity, Laity, Laity, Laity, Laity, Liddiard, Macleod, Mc.Donald, Mondol, Morel, Moyano, Murray, Nebgen, Oh, Peter R. Laity, Pizette, Pongjanyakul, Prakash, Rahaman, Roe, Romero, Schmidt, Sinka, Sinka, Sorensen, Stock, Sun, Tien, Train, Vanorio, Villamizar, Villar, Villar, Wu, Ye   +59 more
core   +1 more source

ENSO‐Mediated Linkage Between the East Asian Summer Monsoon and Cordilleran Ice Sheet Discharge During MIS 3

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Understanding the mechanisms linking low‐latitude monsoon variability and high‐latitude ice‐sheet discharge is critical for elucidating past atmospheric teleconnections, yet direct evidence for such linkages during the last glacial period remains limited. Here we present a high‐resolution terrigenous input record from the South China Sea (SCS)
Haosen Wang, Yi Zhong, Yuanjie Li, Hai Li, Xing Xu, Xiaoxu Shi, Qingsong Liu   +6 more
wiley   +1 more source

Constraining the Relative Chronology of Repeated Large Earthquakes in the Longmen Shan Thrust Belt, Eastern Tibetan Plateau

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract The Yingxiu–Beichuan Fault Zone (YBFZ), located in the Longmen Shan Thrust Belt (LSTB) on the eastern Tibetan Plateau, is highly seismically active. However, direct evidence of large earthquakes at depth is scarce. Here, we present rock magnetic, microstructural, and geochemical analyses of four fault zones from the Wenchuan Earthquake Fault ...
Lei Zhang, Haibing Li, Zhiming Sun, Yong Cao, Chunrui Li, Huan Wang, Yong Zheng, Jialiang Si   +7 more
wiley   +1 more source

Extração de ferro de esmectita brasileira com emprego do método ditionito-citrato-bicarbonato Iron extraction from Brazilian smectite by dithionite-citrate-bicarbonate method

Química Nova, 2000
A natural clay from Campina Grande region (Paraíba, Brazil), with 8.57% of Fe2O3, was used to study the most appropriate condition to carry out the iron extraction, without altering the clay structure in a significant way.
Sidnei Quezada M. Leite, Carlos Henrique A. Colodete, Lídia Chaloub Dieguez, Rosane A. S. San Gil   +3 more
doaj   +1 more source

Mg isotope fractionation during microbial dolomite formation in the Khor Al‐Adaid sabkha, Qatar

The Depositional Record, Volume 12, Issue 2, April 2026.
Modern sabkha sediments from southern Qatar show ca. 1‰ Ca isotope fractionation between pore water, organic matter and dolomite, supporting microbial mediation. In contrast, minimal Mg isotope fractionation and inorganic‐like dolomite δ26Mg indicate that microbial influence is indirect, expressed through subtle pore water shifts driven by Mg ...
Michael Tatzel, Adina Paytan, Samantha Carter, Daniel A. Frick, Marcus Oelze, Francisca Martinez‐Ruiz, Zach A. DiLoreto, Elizabeth M. Griffith, Maria Dittrich, Tomaso R. R. Bontognali, Mónica Sánchez‐Román   +10 more
wiley   +1 more source

Mineralogia e geoquímica da ocorrência de palygorskita de Alcântara, bacia de S. Luís-Grajaú, Maranhão Mineralogy and geochemistry of occurrence of palygorskite of Alcântara, S. Luís-Grajaú basin, Maranhão, Brazil

Cerâmica, 2011
A Formação Alcântara (bacia de São Luis-Grajaú, região de Alcântara, MA) é constituída por pelitos, arenitos e dolomitos. Esses litotipos representam uma sucessão progradacional de depósitos de laguna/washover e canal de maré sobrepondo-se a depósitos de
K. B. Amorim, R. S. Angélica
doaj   +1 more source