Results 61 to 70 of about 1,985,869 (355)

Insight into the Internal Structure of Biogenic, Synthetic and Geological Apatite by Electron Microscopy and X‐Ray Scattering

open access: yesAdvanced Functional Materials, EarlyView.
Apatite occurs in many forms in nature, e.g. in teeth and geological minerals. Internally, biological apatite contains nanocrystals that are also found in synthetically prepared calcium phosphate nanoparticles which are used in biomedicine, e.g. for gene and drug delivery and for bone regeneration. Abstract Calcium phosphate is the inorganic component (
Kathrin Kostka   +3 more
wiley   +1 more source

Possibilities of mapping neotectonic elements based on the interpretation of space images: A study of Fergana Depression

open access: yesGeodesy and Geodynamics, 2022
For the current geological mapping of individual territories, remote sensing and geographic information system (GIS) technologies are widely used. Taking the Fergana depression as an example, this paper aims to determine the possibilities of using remote
Umurzakov Rakhimjan Abdurazakovich   +1 more
doaj   +1 more source

The Mountain Pass Rare-Earth Deposits [PDF]

open access: yes, 1954
Rare-earth minerals were discovered near Mountain Pass in northeastern San Bernardino County, Calif., in April 1949, and in the following year the Sulphide Queen carbonate body was found.
Olson, J. C., Pray, L. C.
core  

From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel   +4 more
wiley   +1 more source

Comparison of ASTER and Sentinel-2 spaceborne datasets for geological mapping: a case study from North-East Greenland

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2019
Spaceborne remote sensing is a suitable tool for early mineral exploration and surveying large areas of high Arctic environment in a fast and cost-effective manner.
S. Salehi   +3 more
semanticscholar   +1 more source

Colloidal Crack Sintering Lithography for Light‐Induced Patterning of Particle Assemblies

open access: yesAdvanced Functional Materials, EarlyView.
Colloidal crack sintering lithography (CCSL) is a microfabrication technique that uses light‐induced photothermal heating to trigger sintering and controlled cracking in polymer colloidal assemblies. Local structural changes generate microchannels and patterns, enabling direct writing of diverse topographic motifs.
Marius Schoettle   +2 more
wiley   +1 more source

Drone brings new advance of geological mapping in Mongolia: Opportunities and challenges

open access: yesMongolian Geoscientist, 2018
Unmanned aerial vehicles (UAVs) or drones have revolutionized scientific research in multiple fields. Drones provide us multiple advantages over conventional geological mapping or high-altitude remote sensing methods, in which they allow us to acquire ...
Otgonbayar Dandar   +5 more
doaj   +1 more source

A Biologically‐Architected Wear and Damage‐Resistant Nanoparticle Coating From the Radular Teeth of Cryptochiton stelleri

open access: yesAdvanced Functional Materials, EarlyView.
The ultrahard teeth of mollusks that feed on rocky substrates contain a wear‐resistant coating on their surfaces consisting of densely packed mesocrystalline magnetic nanoparticles within an organic matrix. These coatings display significant hardness and toughness through their highly controlled mesocrystalline architectures.
Taifeng Wang   +7 more
wiley   +1 more source

A new digital database of Ellen Louise Mertz’s 1924 ‘Overview of late- and postglacial elevation changes in Denmark’

open access: yesGEUS Bulletin
Data from an important historic article on late- and postglacial land-level changes in Denmark and the accompanying map are presented here in a new digital format.
Samuel Paul Jackson   +2 more
doaj   +1 more source

Multi-Scale Response Analysis and Displacement Prediction of Landslides Using Deep Learning with JTFA: A Case Study in the Three Gorges Reservoir, China

open access: yesRemote Sensing, 2023
Reservoir water and rainfall, leading to fluctuations groundwater levels, are the main triggering factors that induce landslides in the Three Gorges Reservoir area.
Yanan Jiang   +4 more
doaj   +1 more source

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