Results 51 to 60 of about 115,176 (207)

Evaluating Plasma Torches as a Low‐Decarburization Preheating Method for MgO–C Refractory Linings

open access: yessteel research international, EarlyView.
This study evaluates direct current (DC) plasma torches using nitrogen as an alternative preheating method for magnesia‐carbon (MgO–C) refractory‐lined ladles. Full‐scale trials at 0.7 and 1.5 MW are compared to conventional gas burner. Plasma‐heated samples show lower decarburization and improved surface integrity due to partial sintering and reduced ...
Marcus Holmström   +3 more
wiley   +1 more source

Levantamento do meio físico das Estações Ecológica e Experimental de Itirapina, São Paulo, Brasil. Physical environment of Itirapina Ecological and Experimental Stations, São Paulo State, Brazil. [PDF]

open access: yesRevista do Instituto Florestal, 2005
Este trabalho teve como objetivos realizaro levantamento do meio físico das EstaçõesEcológica e Experimental de Itirapina, apresentarmapas temáticos e propor recomendações de uso daterra, visando à elaboração do plano de manejo.Foi efetuado com base em ...
Dimas Antonio da SILVA
doaj  

The morphotectonics offshore Southwest Iberia and the origin and evolution of the South Portuguese submarine canyons [PDF]

open access: yes, 2012
Tese de doutoramento, Geologia (Geodinâmica Interna), Universidade de Lisboa, Faculdade de Ciências, 2012Fundação para a Ciência e a Tecnologia (FCT, SFRH/BD/17603 ...
Valadares, Vasco Loja da Silva, 1977-
core  

Herbivore and mesocarnivore carcasses trigger divergent short‐term changes in soil properties

open access: yesJournal of Animal Ecology, EarlyView.
Scavengers reshape nutrient cycles in soils under carrion. Compared to herbivore carcasses, smaller but longer‐lasting carnivore remains boost nutrient levels and microbial activity in dry soils. Abstract Animal corpses act as pulses of organic matter (OM) and serve a key zoogeochemical role by providing localized nutrient inputs to soils and thereby ...
Adrián Colino‐Barea   +15 more
wiley   +1 more source

Subsolidus processes in the Longonjo and Bailundo carbonatites (Angola) [PDF]

open access: yes, 2012
Peer ReviewedPostprint (published ...
Alfonso Abella, María Pura   +4 more
core  

Droughts and human impact in the ancient Uaymil region of the Maya lowlands inferred from a 2800‐year sedimentary archive at Lake Kaná, Mexico

open access: yesBoreas, EarlyView.
The relationship between the climate and societal transformation in Maya lowlands has long been debated, particularly the role of drought in shaping the civilization trajectory during the Classic Period. A high‐resolution, multi‐proxy, geochemical record from Lake Kaná, located in the underexplored Uaymil region of the Yucatán Peninsula in Mexico ...
Haydar B. Martinez‐Dyrzo   +5 more
wiley   +1 more source

"The Pyrenees are not hollow": the mountain as a boundary object "Os Pirineus não são ecos": a montanha como objeto de fronteira

open access: yesHistória, Ciências, Saúde: Manguinhos, 2009
In Toulouse, around 1850, a controversy about the structure of the Pyrenees pitted observatory director Frederic Petit against geology professor Alexandre Leymerie.
Jérôme Lamy
doaj   +1 more source

COMPILATION OF ACTIVE FAULT DATA IN PORTUGAL FOR USE IN SEISMIC HAZARD ANALYSIS [PDF]

open access: yes, 2010
To estimate where future earthquakes are likely to occur, it is essential to combine information about past earthquakes with knowledge about the location and seismogenic properties of active faults.
Besana-Ostman, G.M.   +17 more
core  

RioM‐1: A New Calcite Reference Material for U‐Pb LA‐ICP‐MS Geochronology

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points RioM‐1 calcite was characterised for trace elements, U‐Pb geochronology, Sr and O isotopes using ID‐TIMS, LA‐ICP‐MS and SIMS. U‐Pb dates from ID‐TIMS and LA‐ICP‐MS across several independent laboratories returned identical results within uncertainty.
Marco Silva   +10 more
wiley   +1 more source

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