Results 21 to 30 of about 567 (171)

Structure and thermal characteristics of the Summit dome, March 1990 - March, 1991: Volcán Colima, Mexico

open access: yesGeofísica Internacional, 1993
Un nuevo 1óbulo de lava fue extrusionado sobre el domo del Volcán de Colima a principia de marzo, 1991. En e1 primer día de actividad eruptiva, el nuevo 1óbulo del domo creció a un volumen aproximado de 2,200 m3 de forma circular con diametro de ...
Charles B. Connor   +2 more
doaj   +1 more source

Rock and mineral magnetism / W. O´Reilly

open access: yesGeofísica Internacional, 1985
Este libro sobre magnetismo de rocas y minerales esta escrito por el Dr. William O'Reilly, Senior Lecturer del Departamento de Geofísica y Física Planetaria de la Escuela de Física, Universidad de Newcastle uponTyne (Gran Bretaña).
J. Urrutia Fucugauchi
doaj   +1 more source

Assim na Terra como no céu: a teoria do dínamo como uma ponte entre o geomagnetismo e o magnetismo estelar

open access: yesRevista Brasileira de Ensino de Física
Esse trabalho pretende, através de uma abordagem didática, apresentar a íntima ligação entre o magnetismo estelar e o geomagnetismo, ressaltando a importância da teoria de dínamo na compreensão do magnetismo no universo.
Osman Rosso Nelson   +1 more
doaj   +1 more source

Scattering of Microwaves by a Passive Array Antenna Based on Amorphous Ferromagnetic Microwires for Wireless Sensors with Biomedical Applications

open access: yesSensors, 2019
Co-based amorphous microwires presenting the giant magnetoimpedance effect are proposed as sensing elements for high sensitivity biosensors. In this work we report an experimental method for contactless detection of stress, temperature, and liquid ...
Alberto Moya   +4 more
doaj   +1 more source

Sobre la activación del medio ambiente: las primeras piezas de gravedad y magnetismo de Juan Navarro Baldeweg

open access: yesArchivo Español de Arte, 2022
En el año 1973, Juan Navarro Baldeweg realizará una de sus obras más emblemáticas, La columna y el peso. Se trata de una fotografía tomada en el vestíbulo de la Escuela de Arquitectura y Planeamiento del Massachusetts Institute of Technology (MIT ...
Covadonga Lorenzo Cueva
doaj   +1 more source

Decomposition of the Methylene Blue Dye Using Layered Manganese Oxide Materials Synthesized by Solid State Reactions

open access: yesInternational Journal of Chemical Engineering, Volume 2018, Issue 1, 2018., 2018
The modulation in the synthesis parameters of layered manganese oxides allowed us to produce materials with different AC conductivities. These conductivities were correlated with the catalytic performance of the materials in the decomposition of methylene blue, as a model of electron transfer reactions.
M. E. Becerra   +4 more
wiley   +1 more source

Análisis gravimétrico y magnético de estructuras diapíricas en el offshore de la cuenca de Asturias

open access: yesGeogaceta, 2021
En este trabajo se analizan mediante campos potenciales (gravimetría y magnetismo) las estructuras salinas interpretadas previamente en el offshore de la Cuenca de Asturias. Para ello se han realizado los mapas de anomalías y tres modelos en 2+3/4D GRAV/
Miguel Ángel de la Fuente   +3 more
doaj   +1 more source

Synthesis of FeNi Alloy Nanomaterials by Proteic Sol‐Gel Method: Crystallographic, Morphological, and Magnetic Properties

open access: yesJournal of Nanomaterials, Volume 2016, Issue 1, 2016., 2016
Proteic Sol‐Gel method was used for the synthesis of FeNi alloy at different temperature conditions and flow reduction. The solids were characterized by XRD, H2‐TPR, SEM, TEM, Mössbauer spectroscopy, and VSM. It was observed by X‐ray diffraction pure FeNi alloy in the samples reduced at 600°C (40 mL/min H2 flow) and 700°C (25 mL/min H2 flow).
Cássio Morilla dos Santos   +7 more
wiley   +1 more source

La aguja de Hans Christian Ørsted

open access: yesEpistemología e Historia de la Ciencia, 2022
El presente escrito da un panorama acerca de la electricidad y el magnetismo al terminar el siglo XVIII y al iniciar el siglo XIX, contexto en el cual, se tiene la invención de la pila de Alessandro Volta, y el desarrollo de la experiencia de la aguja ...
Rodrigo Andrés Bautista Rincón
doaj   +2 more sources

Spheroid‐On‐A‐Drop: A Modular Droplet Microfluidics Platform

open access: yesAdvanced Materials Technologies, EarlyView.
The proposed Spheroid‐on‐a‐Drop platform represents a reproducible and tunable platform for the fabrication of biocompatible GelMA‐based microgels, able to support controlled 3D tumor spheroid culture. Its precise control over droplet dynamics and cell distribution paves the way for advanced applications in tissue modeling, drug screening, and ...
A. Fergola   +8 more
wiley   +1 more source

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