Results 71 to 80 of about 235,656 (299)

Tectonic Control of a Change in Sedimentary Environment at ~10 Ma in the Northeastern Tibetan Plateau

open access: yesGeophysical Research Letters, 2018
Tectonic uplift and climate change play a key role in the evolution of sedimentary systems in terrestrial basins. The Qaidam Basin in the northeastern Tibetan Plateau is well suited for studying these processes because of its location and its thick ...
Tao Zhang   +8 more
semanticscholar   +1 more source

Mesoporous Silica Microspheres by Super‐Fast Alkaline Etching of Micrometer‐Sized Stöber Particles

open access: yesAdvanced Engineering Materials, EarlyView.
Microscale silica particles are prepared along with a modified, scalable Stöber synthesis using the continuous addition of tetraethoxy silane to an ethanolic solution of ammonia with KCl. Etching with hydroxide ions at 95 °C gave porous analogs within minutes. Monodisperse particles are isolable in high yield after precipitation in ethanol.
Adrian Vaghar   +2 more
wiley   +1 more source

Revisit the Sedimentary Stratigraphic Evolution and Environmental Changes on the Outer Shelf of the East China Sea Since MIS 5

open access: yesFrontiers in Marine Science, 2022
The East China Sea (ECS) is featured by the broad continental shelf, huge terrigenous sediment input and striking river-sea interaction during the Quaternary.
Zhongbo Wang   +13 more
doaj   +1 more source

Pressure Solution in Sedimentary Basins: Effect of Temperature Gradient [PDF]

open access: yesEarth and Planetary Science Letters, Vol. 176, 233-243 (2000)., 2010
Pressure solution is an important process in sedimentary basins, and its behaviour depends mainly on the sediment rheology and temperature distribution. The compaction relation of pressure solution is typically assumed to be a viscous one and is often written as a relationship between effective stress and strain rate.
arxiv   +1 more source

Bedforms and sedimentary structures related to supercritical flows in glacigenic settings

open access: yesSedimentology, 2020
Upper‐flow‐regime bedforms, including upper‐stage‐plane beds, antidunes, chutes‐and‐pools and cyclic steps, are ubiquitous in glacigenic depositional environments characterized by abundant meltwater discharge and sediment supply.
J. Lang   +3 more
semanticscholar   +1 more source

Key Trends and Insights in Smart Polymeric Skin Wearable Patches

open access: yesAdvanced Engineering Materials, EarlyView.
Intelligent polymers, which respond to various physical and biological stimuli, are explored for the development of skin wearable patches in biomedical applications. Smart polymers, also known as intelligent or stimuli‐responsive polymers, play a crucial role in the development of advanced wearable patches due to their versatility and softness.
Sergio J. Peñas‐Núñez   +2 more
wiley   +1 more source

Combining machine learning techniques, microanalyses and large geochemical datasets for tephrochronological studies in complex volcanic areas: new age constraints for the Pleistocene magmatism of Central Italy [PDF]

open access: yes, 2017
Characterization, correlation and provenance determination of tephra samples in sedimentary sections (tephrochronological studies) are powerful tools for establishing ages of depositional events, volcanic eruptions, and tephra dispersion. Despite the large literature and the advancements in this research field, the univocal attribution of tephra ...
arxiv   +1 more source

Efficient and Scalable Radiative Cooling for Photovoltaics Using Solution‐Processable and Solar‐Transparent Mesoporous Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
Graded refractive index (GRI) structures are prepared from the layer‐by‐layer spray coating of the mesoporous SiO2 nanoparticles, showing high solar transparency and thermal emissivity. Under outdoor conditions, after 50 days, the GRI‐coated photovoltaics show on average 6.65 ± 1.48 °C lower than that of the non‐coated references, maintaining 80.9 ± 8 ...
Heesuk Jung   +14 more
wiley   +1 more source

Sedimentary logs and facies characterization dataset of Tembeling group from the vicinity area of Kuala Tahan, Pahang, Malaysia

open access: yesData in Brief, 2023
This sedimentary logging and facies characterized dataset of 28 outcrops exposed along Kuala Tahan – Kampung Pagi – Kampung Bantal which is situated in the central part of Peninsular Malaysia (in the state of Pahang).
Wei Chung Khor   +3 more
doaj  

The Distribution and Exploration Status of Domestic and Foreign Sedimentary-type Lithium Deposits

open access: yesYankuang ceshi, 2019
BACKGROUND With the increasing consumption of lithium resources in recent years, the boom of lithium exploration and development has grown worldwide. At present, three main types of lithium deposits have been explored and utilized in the world:brine-type,
YU Feng   +6 more
doaj   +1 more source

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