Results 41 to 50 of about 30,149 (247)

Rock and mineral magnetism / W. O´Reilly

Geofísica 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

Synthesis of superparamagnetic iron(III) oxide nanowires in double-walled carbon nanotubes [PDF]

, 2009
The synthesis and characterization of superparamagnetic iron(III) oxide nanowires confined within double-walled carbon nanotubes by capillary filling with a melted precursor (iron iodide) followed by thermal treatment is reported for the first ...
Datas, Lucien, Fernandez Barquin, Luis, Flahaut, Emmanuel, Galibert, Anne-Marie, Gonzalez, Jesus, Gonzalez-Jimenez, Fernando, Jorge, Jose, Lukanov, Petar, Rodriguez Fernandez, Jesus, Soula, Brigitte, Tîlmaciu, Carmen   +10 more
core   +2 more sources

Concepciones alternativas sobre el campo magnético estacionario : selección de cuestiones realizadas para su detección [PDF]

, 2003
El trabajo que aquí se presenta trata de hacer una recapitulación de las principales investigaciones realizadas en el ámbito del campo magnético estacionario, que tienen como objetivo averiguar las deficiencias más importantes que se producen en el ...
Almudí, José Manuel, Ceberio, Mikel, Guisasola, Jenaro   +2 more
core   +2 more sources

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

International 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, A. M. Suarez, N. P. Arias, O. Giraldo, Donald L. Feke   +4 more
wiley   +1 more source

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

Journal 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, Adanny Filipe Nogueira Martins, Bruna Carolina Costa, Thiago Soares Ribeiro, Tiago Pinheiro Braga, João Maria Soares, José Marcos Sasaki, Edward A. Payzant   +7 more
wiley   +1 more source

La aguja de Hans Christian Ørsted

Epistemología 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

Magnetic relaxation and magnetization field dependence measurements in La0.5Ca0.5MnO3

, 2000
We reported a systematic change in the average magnetic relaxation rate, after the application and removal of a 5 T magnetic field, in a polycrystalline sample of La0.5Ca0.5MnO3. Magnetic relaxation measurements and magnetization versus field curves were
F.M Araujo-Moreira, Huang, J López, Labarta, Moritomo, Mydosh, P.N Lisboa-Filho, Roy, W.A Ortiz, W.A.C Passos, Xiao   +10 more
core   +3 more sources

Robust Directional Analysis of Magnetic Microscopy Images Using Non‐Linear Inversion and Iterative Euler Deconvolution

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract In paleomagnetism, bulk measurements of entire samples have traditionally been used to characterize remanent magnetization. While effective, this approach provides only a general directional estimate and cannot resolve spatial variability or magnetization at the grain scale.
Gelson F. Souza‐Junior, Leonardo Uieda, Ricardo I. F. Trindade, Roger R. Fu, Ualisson D. Bellon, Yago M. Castro   +5 more
wiley   +1 more source

Influence of Nanocrystalline Structure on the Magnetic Properties of Wires and Microwires

Texture, Stress, and Microstructure, Volume 32, Issue 1-4, Page 245-267, 1999., 1997
The determining factors of the outstanding magnetic properties of the so‐called nanocrystalline materials are described. The discussion is based on results performed on wires and microwire materials with general composition FeSiB(CuNb) and obtained by different rapid solidification techniques.
M. Vázquez, P. Marin, J. Arcas, A. Hernando, A. P. Zhukov, J. González   +5 more
wiley   +1 more source

Sobre a condenação do magnetismo animal: revisitando a história da psicologia

Psicologia: Teoria e Pesquisa
O presente trabalho procura desenvolver uma reflexão crítica sobre o processo de condenação do magnetismo animal. Partindo de uma crítica às versões lineares e progressistas da história da Psicologia, nas quais o magnetismo é excluído ou pouco explorado,
Maurício da Silva Neubern
doaj   +1 more source