Results 131 to 140 of about 147,175 (375)
From Ancient Techniques to Modern Solutions: In Situ Synthesis of C‐S‐H for Sandstone Conservation
Advanced Science, EarlyView.Herein, this work presents a paleo‐inspired approach to synthesizing and optimizing C‐S‐H‐based grouting mortars for conserving the sandstone of Beishan Grottoes, Dazu Rock Carvings, China. By achieving an optimal recipe compatible with natural sandstone, this work demonstrates the pivotal role of hydrogen bonding in the adhesion between C‐S‐H mortars ...
Mengjun Jia +9 more
wiley +1 more source
Salinity Constraints on Subsurface Archaeal Diversity and Methanogenesis in Sedimentary Rock Rich in Organic Matter [PDF]
, 2007 Patricia J. Waldron +3 more
openalex +2 more sources
, 2008 Biblioteca de Educación del Ministerio de Educación, Cultura y Deporte; Calle San Agustín, 5 - 3 planta; 28014 Madrid; Tel.
openaire +1 more source
Advanced Electronic Materials, EarlyView.An n‐type organic thermoelectric aerogel PB@CNF, based on PBFDO, is fabricated by a two‐step freeze‐drying process with cellulose nanofiber (CNF) as substrate. The aerogels can be used not only as temperature sensing and piezoresistive sensing, but also to form a flexible organic thermoelectric generator with the p‐type aerogel (PH@CNF) based on PEDOT ...
Chan Zhang +6 more
wiley +1 more source
Grain Segregation Mechanism in Aeolian Sand Ripples [PDF]
Eur. Phys. J.-E, 1 January 2000, 1998 Many sedimentary rocks are formed by migration of sand ripples. Thin layers of coarse and fine sand are present in these rocks, and understanding how layers in sandstone are created has been a longstanding question. Here, we propose a mechanism for the origin of the most common layered sedimentary structures such as inverse graded climbing ripple ...
arxiv
This activity has students observe and describe the physical characteristics of a familiar model (candy bars) and apply those skills to an unfamiliar model (rocks).
Marilyn Lindstrom
core
Advanced Energy Materials, EarlyView.FeMn(NbTa)2O6‐columbite is a sustainable and high‐performance bifunctional electrocatalyst for anion exchange membrane water electrolyzers, comparable to benchmark catalysts. In situ XAS and DFT analysis show Fe/Mn sites exhibit higher OER activity due to reduced overpotentials and favorable O→OOH energetics. The Nb/Ta sites facilitate charge transfer,
Patrick M. Bacirhonde +17 more
wiley +1 more source
Macroscopic Dielectric Constant for Microstructures of Sedimentary Rocks [PDF]
Granular Matter, vol. 2, page 137, (2000), 1999 An approximate method to calculate dielectric response and relaxation functions for water saturated sedimentary rocks is tested for realistic threedimensional pore space images. The test is performed by comparing the prediction from the approximate method against the exact solution.
arxiv
Sedimentary rocks of southern Patagonia [PDF]
American Journal of Science, 1900 n ...
openaire +2 more sources
Advanced Energy Materials, EarlyView.The double perovskite BaSrNiWO6 is developed as an oxygen evolution reaction catalyst. B‐site W6+ dissolution drives in situ reconstruction of the surface to a disordered, NiO‐like layer. Consequently, local oxygen species are activated for a surface lattice oxygen evolution mechanism (sLOEM).
Natasha Hales +12 more
wiley +1 more source