نتایج جستجو برای: Ferro

تعداد نتایج: 2391  

2015

There are errors in the Funding section. The correct funding information is as follows: This work was supported by National Natural Science Foundation of China (NNSFC31400091) (http://www.nsfc.gov.cn), Natural Science Foundation of Jiangsu Province (BK2012202) (http://www.jstd.gov.cn/), Chinese Postdoctoral Science Foundation (2013M540518) (http://res.chinapostdoctor.org.cn/BshWeb/index.shtml),...

2011
Tsung-Han Tsai Ping-Hei Chen Da-Sheng Lee Chin-Ting Yang

This study investigated a simple model of transformers that have liquid magnetic cores with different concentrations of ferro-nanofluids. The simple model was built on a capillary by enamel-insulated wires and with ferro-nanofluid loaded in the capillary. The ferro-nanofluid was fabricated by a chemical co-precipitation method. The performances of the transformers with either air core or ferro-...

2008
Michael Murray

This essay investigates the magnetoviscous properties of ferro uid ow in both an external magnetic eld and in zero eld. Zeroeld properties of ferro uids are examined. Phenomena such as the dramatic increase in ferro uid viscosity in the presensce of a static eld as well as negative viscosity for an alternating magnetic eld are described.

1992
Carla Buzano Alessandro Pelizzola

The Blume Emery Griffiths model is investigated by use of the cluster variation method in the pair approximation. We determine the regions of the phase space where reentrant phenomenon takes place. Two regions are found, depending on the sign of the reduced quadrupole quadrupole coupling strength ξ. For negative ξ we find Para-Ferro-Para and Ferro-Para-Ferro-Para transition sequences; for posit...

Journal: :Jornal de pediatria 2012
Frank R Greer

A anemia é um problema muito comum entre as crianças brasileiras1. Assim, não surpreende que a incidência de deficiência de ferro e anemia por deficiência de ferro seja consideravelmente elevada em lactentes nascidos em um hospital no estado do Rio Grande do Sul entre os 12 e os 16 meses de idade. Dos 369 lactentes que tiveram seus níveis de hemoglobina sérica mensurados no relato de Bortolini ...

2008
Thaís Rezende Boen Bruno Thiago Soeiro Edenir Rodrigues Pereira-Filho Juliana Azevedo Lima-Pallone

O ácido fólico tem sido identificado como uma das mais importantes vitaminas para a função normal do metabolismo humano. A deficiência de ferro é um sério problema de saúde que afeta uma grande proporção da população do mundo. No Brasil, foi publicada uma regulamentação indicando que farinhas de milho e trigo devem ser fortificadas com ácido fólico e ferro. O objetivo deste trabalho foi avaliar...

2013
Je-Ee Ho

A framework of ferro-magnetization on apparent weightiness, through electro-magnetic induction, is proposed in this study. Here the integral solution of ferro-magnetization, based on Boltzmann probabilistic theory in modified Bessel function, avoids unstable result accessed from traditional Langevin’s analysis. Also, a self-designed electromagnetism mechanism measuring gravitational counteracti...

2002
C. Y. Matuo F. A. Tourinho M. H. Souza J. Depeyrot A. M. Figueiredo Neto

The properties of lyotropic ferronematic liquid crystals based on new Ni, Cu and Zn ionic magnetic uids are discussed. The eÆciency of these new ferro uids in the lyotropic nematic liquid crystal doping is veri ed and compared with the conventional surfacted ferro uid lyotropic doping. It was observed that the structural characteristics of the lyotropics and ferro uids determine the good format...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Bernard P Boudreau

To the Editor: A recent article in PNAS by Asikainen and Werle (1) reports on the occurrence and morphology of ferromanganese nodules found in a New Hampshire lake. The authors offer data on the shapes, banding, composition, and distribution of the nodules and crusts. They also state that my paper (2) claims that the morphology of such nodules is controlled by elemental concentrations and that ...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2014
A García-Fuente L J Gallego A Vega

Using SMEAGOL, an ab initio computational method that combines the non-equilibrium Green's function formalism with density-functional theory, we calculated spin-specific electronic conduction in systems consisting of single Fen and Nin nanostructures (n = 1-4) adsorbed on a hydrogen-passivated zigzag graphene nanoribbon. For each cluster we considered both ferromagnetically and antiferromagneti...

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