Results 61 to 70 of about 51,466 (294)
, 1996 Fil: Martínez, L. del V. Servicio Geológico Minero Argentino. Instituto de Geología y Recursos Minerales; Argentina.Fil: Chipulina, M.A. Servicio Geológico Minero Argentino. Instituto de Geología y Recursos Minerales; Argentina.Fil: Hongn, F.
Folguera, Andrés +4 more
core +1 more source
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
Bio‐Inspired Synthesis of Macroporous Single Crystal Particles as Scattering Agents
Advanced Functional Materials, EarlyView.A general strategy is presented that delivers unique, single‐crystal microparticles that combine submicron macroporosity and uniform particle shapes. A bioinspired approach is used to occlude three distinct types of additives – polystyrene microspheres, polymer vesicles and amino acids – within calcite single crystals, and subsequent thermal annealing ...
Stephanie E. Foster +11 more
wiley +1 more source
Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite
Advanced Functional Materials, EarlyView.The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen +16 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
doaj
Boletín Geológico, 1983 En este trabajo se considera la geología de las siguientes unidades morfoestructurales de Colombia: la cordillera Central, la cordillera Occidental, la Serranía de Baudó y las Depresiones interandinas del Cauca - Patía y Atrato - San Juan - Tumaco.
Alberto Jairo Álvarez
doaj +1 more source
Chitin‐Derived Carbon‐Metal Functional Materials
Advanced Functional Materials, EarlyView.Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang +7 more
wiley +1 more source
Boletín Geológico, 1984 El flanco occidental de la cordillera Central de Colombia, en el sector comprendido entre los municipios de Aránzazu, Salamina y Pácora en el departamento de Caldas, se realizó un programa de prospección geoquímica y geología que se cumplió en tres ...
Hernando Lozano Q. +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.The liposome nanoreactor method enables uniform metal nanoparticle synthesis using the interior as a reaction environment. We demonstrate that peptide sequences and lipid compositions act as a functional molecular switch to control reaction environments in liposome nanoreactors.
Yuya Abe +6 more
wiley +1 more source
Experimental and Theoretical Study of the Thermal Shock Behavior of Insulating Refractory Materials
CeramicsThis study investigates the thermal shock behavior of three Al2O3-SiO2 commercial insulating refractory materials (JM23, JM26, and JM28) used in high-temperature industries (>1000 °C). Thermal shock resistance was evaluated through experimental tests and
Anabella Mocciaro +4 more
doaj +1 more source