Results 91 to 100 of about 9,373 (256)

Paleomagnetism, rock magnetism and geochemical aspects of early Cretaceous basalts of the Paraná Magmatic Province, from Misiones, Argentina [PDF]

, 2006
The basalts of the Posadas Formation were extruded during the huge continental volcanism that affected the Parana Basin in the Lower Cretaceous. We have carried out a paleomagnetic and rock-magnetic study on samples collected along a basalt outcrop ...
Lagorio, Silvia Leonor, Mena, Mabel, Orgeira, Maria Julia   +2 more
core   +1 more source

Magnetic Field‐Modulated Boolean Logic in Proteinoid‐ Fe3 O4 Hybrid Materials

Advanced Physics Research, EarlyView.
Proteinoid‐Fe3O4${\rm Fe}_3{\rm O}_4$. nanoparticle composites exhibit spontaneous electrical oscillations that emulate Boolean logic gates (AND, OR, XOR, NAND, NOR, NOT) under magnetic field modulation. External fields of 65.103 mT tune oscillatory behavior: 84 mT enhances amplitude while 103 mT suppresses it.
Panagiotis Mougkogiannis, Andrew Adamatzky   +1 more
wiley   +1 more source

Rock magnetic and geochemical evidence for authigenic magnetite formation via iron reduction in coal-bearing sediments offshore Shimokita Peninsula, Japan (IODP Site C0020) [PDF]

, 2017
Sediments recovered at Integrated Ocean Drilling Program (IODP) Site C0020, in a fore‐arc basin offshore Shimokita Peninsula, Japan, include numerous coal beds (0.3–7 m thick) that are associated with a transition from a terrestrial to marine ...
Clyde, William C., Johnson, Joel E., Maxbauer, Daniel P., Phillips, Stephen C., Riedinger, Natascha, Setera, Jacob B., Severmann, Silke   +6 more
core   +1 more source

Fiber‐type soft bioelectronics for wearable and implantable sensing and therapy

BMEMat, EarlyView.
Fiber‐type soft bioelectronics are emerging as versatile platforms for wearable and implantable health monitoring and therapeutic applications. These bioelectronics use organic and inorganic matrices combined with advanced fillers, which feature high conductivity, electrochemical sensitivity, softness, and biocompatibility.
Haneul Kim, Hak Yong Kim, Ja Hoon Koo, Gi Doo Cha, Dae‐Hyeong Kim, Hye Jin Kim   +5 more
wiley   +1 more source

Magnetization of the oceanic crust: TRM or CRM? [PDF]

A model was proposed in which chemical remanent magnetization (CRM) acquired within the first 20 Ma of crustal evolution may account for 80% of the bulk natural remanent magnetization (NRM) of older basalts.
Labrecque, J. L., Raymond, C. A.
core   +1 more source

Chemical Remanent Magnetization of Ferromagnetic Minerals and Its Application to Rock Magnetism

Journal of geomagnetism and geoelectricity, 1959
Experimental studies have been carried out on the remanent magnetization generated by chemical reactions (which may properly be called chemical remanent magnetization or C. R. M. in abbreviation) for both natural and synthetic specimens. Remanent magnetization generated during two kinds of reaction processes, that is, reduction of α-Fe2O3 to Fe3O4 and ...
openaire   +2 more sources

Arsonic Acid Functional Polymers Enable Stabilization of Iron Oxide Nanoparticles in Aqueous Solution

Macromolecular Rapid Communications, EarlyView.
Arsonic acid containing diblock copolymers are developed to incorporate arsonic acid moieties for surface anchoring to IONPs, along with water soluble PEG blocks to impart colloidal stability in aqueous environments. The resulting polymer‐coated IONPs are evaluated for stability in physiological media and cytocompatibility.
Nhu Thao Huynh, Alexander Rajakanthan, Jurie Tashkandi, Rafia Rafique, Milad Ghorbani, Zihnil A. I. Mazrad, Nicole M. Warne, Kiyonori Suzuki, Karen Alt, Paul Wilson, Kristian Kempe   +10 more
wiley   +1 more source

Composite multiferroic materials consisting of NdFeB and PZT particles embedded in elastic matrix: the appearance of electrical polarization in a constant magnetic field

EPJ Web of Conferences, 2018
New composite materials consisting of polymer matrix with PZT and NdFeB microparticles were prepared and investigated in the work. It was found that magnetic properties such as saturation magnetization, coercivity, permeability, depend on mass ...
Makarova Liudmila, Alekhina Yuliya, Kramarenko Elena, Omelyanchik Alexander, Rodionova Valeria, Malyshkina Olga, Perov Nikolai   +6 more
doaj   +1 more source

On the Interaction of the Photovoltaic Response With Ferroelectric and Magnetic Domains: Magnetoelectric Control of the Photovoltaic Response in BiFeO3 Thin Films

Small Methods, EarlyView.
This study demonstrates tunable photovoltaic responses in pure, polycrystalline BiFeO3 thin films, controlled by external electric and magnetic fields. By aligning ferroelectric domains and leveraging magnetoelectric coupling, the photogeneration is amplified up to seven times.
Luciano Cardoso Dias, Eduardo Astrath Volnistem, Maurício Mazur, Fernanda Barbieri, Karina Midori Endo, Ana Carolina Ferreira, Mariele Noemi da Silva Diaz, Taiana Gabriela Moretti Bonadio, Ricardo Yoshimitsu Miyahara, Tania Toyomi Tominaga, Gustavo Sanguino Dias, Luiz Fernando Cótica, Ivair Aparecido dos Santos, José Antonio Eiras, Valdirlei Fernandes Freitas   +14 more
wiley   +1 more source

Effective collective barrier for magnetic relaxation in frozen ferrofluids

, 2003
Magnetic relaxation and frequency response were measured in frozen ferrimagnetic colloids of different concentrations. A crossover from reversible to irreversible behavior is observed for concentrated colloids.
Blatter, Denisov, Dormann, Eberbeck, Garanin, Griessen, Iglesias, Jonsson, Jonsson, Lottis, Luo, Maley, Mamiya, Mørup, Néel, Pazmandi, Prozorov, Prozorov, Prozorov, Ruslan Prozorov, Shafi, Stoner, Suslick, Suslick, Tanya Prozorov, Templeton, van Lierop, Yeshurun, Zeldov, Zhang   +29 more
core   +1 more source