Results 71 to 80 of about 261,715 (314)
MetalsCopper leaching presents an environmentally friendly alternative to traditional sulfide ore processing methods. This study investigates an efficient leaching process for copper concentrate, utilizing a solution of sulfuric acid (H2SO4) and potassium ...
María E. Taboada +4 more
doaj +1 more source
The Geology as an indispensable tool for optimizing the exploration of dimension Stones [PDF]
, 2012 Like any Geological Resource, the Dimension Stones can only be exploited where they occur. How they occur is a reflection of geological history that presided over its formation.
Lopes, Luís
core
A neoproterozoic age for the chromitite and gabbro of the Tapo Ultramafic Massif, Eastern Cordillera, Central Peru, and its tectonic implications [PDF]
, 2011 The ultramafic-mafic rocks of the Tapo Complex are exposed in the Eastern Cordillera of the Central Peruvian Andes. This complex is composed of serpentinised peridotites and metabasites with some podiform chromitite lenses and chromite disseminations and
Amaral +25 more
core +3 more sources
Advanced Functional Materials, EarlyView.Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum +5 more
wiley +1 more source
Danmarks Geologiske Undersøgelse II. Række, 1943 Den danske Mineralverden er, som man kan tænke sig, ikke særlig rig; Antallet af forskellige Mineraler er ikke stort (ca. 50), og der er ikke blandt Forekomsterne nogen, der udmærker sig ved store og smukke Krystaller, eller er videre iøjnefaldende paa anden Maade. Alligevel frembyder de dog forskelligt af Interesse, og jeg haaber, at en Sammenstilling
openaire +2 more sources
Agua, rocas y metales: Arqueología y explotación de recursos minerales en la Edada Media [PDF]
, 2008 Reflexiones acerca de la forma de abordar los estudios sobre la explotación de recursos minerales y su transformación en la Edad Media. Se propone una investigación a partir de las aportaciones de los textos escritos, la arqueología y la analítica ...
Sancho i Planas, Marta
core
Evolución geológica en la cuenca baja del río Colorado durante el cenozoico, Patagonia Norte, Argentina [PDF]
, 2019 Climatic changes and eustatic sea levels have been assumed to be the most important controllers of the Colorado River alluvial fan in northern Patagonia.
Perillo, Gerardo Miguel E. +2 more
core +2 more sources
Advanced Functional Materials, EarlyView.Automat optical inspection (AOI) techniques in semiconductor fabrication can be leveraged in battery manufacturing, enabling scalable detection and analysis of electrode‐ and cell‐level imperfections through AI‐driven analytics and a digital‐twin framework.
Jianyu Li, Ertao Hu, Wei Wei, Feifei Shi
wiley +1 more source
Advanced Functional Materials, EarlyView.Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco +7 more
wiley +1 more source
AVANCES DEL PROYECTO: MAPA GEOQUÍMICA DE SEDIMENTOS ACTIVOS FINOS DEL DEPARTAMENTO DE ANTIOQUIA
Boletín de Ciencias de la Tierra, 2007 Para la elaboración del Mapa Geoquímica de Sedimentos Activos Finos del Departamento de Antioquia, se diseño un sistema de bloques de 30 km x 20 km, donde se tomaron muestras sobre los drenajes más representativos y se prepararon compósitos para análisis
LUIS HERNÁN SÁNCHEZ A. +2 more
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