Results 31 to 40 of about 559,376 (319)

Quaternary glacial cycles: Karst processes and the global CO2 budget

open access: yesActa Carsologica, 2013
Extensive research has been conducted investigating the relationship between karst processes, carbonate deposition and the global carbon cycle. However, little work has been done looking into the relationship between glaciations, subsequent sea level ...
Erik B. Larson, John E. Mylroie
doaj   +1 more source

More water-soluble brown carbon after the residential “coal-to-gas” conversion measure in urban Beijing

open access: yesnpj Climate and Atmospheric Science, 2023
The implementation of air pollution reduction measures has significantly reduced the concentration of atmospheric fine particles (PM2.5) in Beijing, among which the “coal-to-gas” conversion measures may play a crucial role.
Wei Yuan   +11 more
doaj   +1 more source

Hugues Faure, 1928–2003: The unique adventure of his life [PDF]

open access: yes, 2010
Hugues Faure was not only one of the greatest pioneers of the study of the Quaternary and a man of outstanding personality, with the highest integrity, an uncommon strength of character, with a lot of kindness and generosity, but also a man who made his ...
Faure, Olivier   +4 more
core   +3 more sources

High-resolution remapping of the coastal dune fields of south east Queensland, Australia: a morphometric approach

open access: yesJournal of Maps, 2019
The sand islands and shore-attached dune fields of south east Queensland form the world’s oldest and largest coastal sand dune system. Here we present updated morphological maps for the dune fields based on topographic expression and geomorphic ...
Nicholas R. Patton   +2 more
doaj   +1 more source

Late Quaternary Variations in the South American Monsoon System as Inferred by Speleothems—New Perspectives Using the SISAL Database

open access: yesQuaternary, 2019
Here we present an overview of speleothem δ18O records from South America, most of which are available in the Speleothem Isotopes Synthesis and Analysis (SISAL_v1) database.
Michael Deininger   +3 more
doaj   +1 more source

Morphostratigraphy of the Sázava river terraces in the Bohemian Massif

open access: yesActa Universitatis Carolinae Geographica, 2021
The results of geomorphological research into the Sazava river terraces are presented. This terrace system is characteristic by its variable structure which is conditioned by specific hydrodynamic processes that existed during the late Cenozoic evolution
Břetislav Balatka   +2 more
doaj   +1 more source

A general route to the synthesis of surfactant-free, solvent-dispersible ternary and quaternary chalcogenide nanocrystals [PDF]

open access: yes, 2011
A general route to the synthesis of surfactant-free CuInS2 (CIS), Cu2CoSnS4 (CCTS) and Cu2ZnSnS4 (CZTS) nanocrystals dispersible in low boiling point solvents is proposed. These nanocrystal inks should be of great interest to the fabrication of thin film
Chane-Ching, Jean-Yves   +3 more
core   +2 more sources

The National Superficial Deposit Thickness Model. (Version 5) [PDF]

open access: yes, 2009
The Superficial Deposits Thickness Model (SDTM) is a raster-based dataset designed to demonstrate the variation in thickness of Quaternary-age superficial deposits across Great Britain.
Garcia-Bajo, M., Lawley, R.
core  

High SNR BER Comparison of Coherent and Differentially Coherent Modulation Schemes in Lognormal Fading Channels

open access: yes, 2014
Using an auxiliary random variable technique, we prove that binary differential phase-shift keying and binary phase-shift keying have the same asymptotic bit-error rate performance in lognormal fading channels.
Alouini, Mohamed-Slim   +2 more
core   +1 more source

Evidence of Quaternary tectonics along Río Grande valley, southern Malargüe fold and thrust belt, Mendoza, Argentina [PDF]

open access: yes, 2019
The Malargüe fold and thrust belt is developed in the Argentinian Andes between 34° and 37° S, through the tectonic inversion of Upper Triassic and Lower Jurassic depocenters of the Neuquén Basin, with an uplift history since the Cretaceous.
Colavitto, Bruno   +4 more
core   +1 more source

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