Results 21 to 30 of about 183,005 (293)

Recent Advances and Challenges in Emerging Power Systems

Inventions
Diminishing fossil fuels, the continually increasing demand for energy due to rapid urbanization, pollution caused by the increased generation of electricity using fossil fuels, the consequent environmental effect, and concerns about man-made global ...
Om P. Malik
doaj   +1 more source

Fossil trees, tree moulds and tree casts in the Palaeocene Mull Lava Field, NW Scotland: context, formation and implications for lava emplacement [PDF]

, 2016
Megafossils and macrofossils of terrestrial plants (trees, leaves, fruiting bodies, etc.) are found in sedimentary and pyroclastic units interbedded with lavas in many ancient lava fields worldwide, attesting to subaerial environments of eruption and the
Bell, Brian R., Williamson, Ian T.
core   +1 more source

Generic revision of holocystitid blastozoans [PDF]

Acta Palaeontologica Polonica
Brightonicystis is a valid genus characterised by nine or more oral plates, with two in the B and D ambulacra not reaching the inner mouth edge; five ambulacral facets shared by oral and facetal plates; two generations of smooth thecal plates with ...
CHRISTOPHER R.C. PAUL
doaj   +1 more source

EOCENE NAUTILOIDS FROM THE BAJA CALIFORNIA PENINSULA, MEXICO: RECORDS, DESCRIPTION OF A NEW SPECIES, AND BIOGEOGRAPHIC IMPLICATIONS

Publicación Electrónica de la Asociación Paleontológica Argentina, 2023
Several cephalopods from the Eocene have been recorded along the Pacific coast of North America. Each new record incorporates relevant knowledge to infer the paleobiology of this group. In this study, we report two nautiloids (subclass Nautiloidea) from
Priscila Morales-Ortega, Gerardo Gon´zalez-Barba, Mariana Díaz-Santana-Iturrios, Tobias Schwennicke   +3 more
doaj   +1 more source

The global carbon budget 1959-2011 [PDF]

, 2012
Accurate assessments of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere is important to better understand the global carbon cycle, support the climate policy process, and ...
Ahlström, Anders,, Andres, R. J., Andrew, R. M., Boden, T., Bopp, L., Canadell, J. G., Ciais, P., Conway, T., Doney, S. C., Enright, C., Friedlingstein, P., Houghton, R. A., House, J. I., Huntingford, C., Jain, A. K., Jourdain, C., Kato, E., Keeling, R. F., Klein Goldewijk, K., Le Quéré, C., Levis, S., Levy, P., Lomas, M., Lund University., Lund University., Lund University., Marland, G., Peters, G. P., Poulter, B., Raupach, M. R., Schwinger, J., Sitch, S., Stocker, B. D., van der Werf, G. R., Viovy, N., Zaehle, S., Zeng, N.   +36 more
core   +10 more sources

Libro de Resúmenes de las XXXVII Jornadas Argentinas de Paleontología de Vertebrados

Publicación Electrónica de la Asociación Paleontológica Argentina
Libro de resúmenesde las XXXVII Jornadas Argentinas de Paleontología de Vertebrados, que tuvo lugar en la Ciudad de Corrientes (Corrientes, Argentina) del 14 al 17 de Mayo de 2024.
Comité Organizador de las XXXVII JAPV
doaj   +1 more source

A new proterochampsid archosauriform from the Middle–Upper Triassic of Southern Brazil [PDF]

Acta Palaeontologica Polonica
Proterochampsidae is a clade of carnivorous archosauriforms that lived during the Triassic and is characterized by an elongated rostrum with dorsally oriented external nares, and a unique pes configuration.
RODRIGO T. MÜLLER
doaj   +1 more source

Mercury in the environment [PDF]

, 1972
Problems in assessing mercury concentrations in environmental materials are discussed. Data for situations involving air, water, rocks, soils, sediments, sludges, fossil fuels, plants, animals, foods, and man are drawn together and briefly evaluated ...
Fulkerson, W., Lyon, W. S., Shults, W. D., Wallace, R. A.   +3 more
core   +1 more source

Reconstructing Cenozoic vegetation from proxy data and models – A NECLIME synthesis (Editorial) [PDF]

, 2017
[No abstract ...
Bruch, Angela A., François, Louis, Spicer, Robert A., Spicer, Teresa, Utescher, Torsten   +4 more
core   +1 more source

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

Advanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar, Jana Hubálková, Steffen Dudczig, Gert Schmidt, Florian Kerber, Thomas Schemmel, Patrick Gehre, Christos G. Aneziris   +7 more
wiley   +1 more source