Chemical preparation of new magnetic fluids based on spinnel ferrite nanoparticles

1996 ◽  
Author(s):  
F. A. Tourinho ◽  
P. C. Morais ◽  
M. H. Sousa ◽  
L. G. Macedo
Keyword(s):  
Magnetic Fluids ◽  
Ferrite Nanoparticles ◽  
Chemical Preparation

Magnetite-cobalt ferrite nanoparticles for kerosene-based magnetic fluids

2005 ◽  
Vol 294 (2) ◽  
pp. e37-e41 ◽  
Author(s):  
O. Ayala-Valenzuela ◽  
J. Matutes-Aquino ◽  
R. Betancourt-Galindo ◽  
L.A. García-Cerda ◽  
O. Rodríguez Fernández ◽  
...  
Keyword(s):  
Cobalt Ferrite ◽  
Magnetic Fluids ◽  
Ferrite Nanoparticles ◽  
Cobalt Ferrite Nanoparticles

Magnetization temperature dependence and freezing of surface spins in magnetic fluids based on ferrite nanoparticles

2005 ◽  
Vol 72 (18) ◽  
Author(s):  
R. Aquino ◽  
J. Depeyrot ◽  
M. H Sousa ◽  
F. A. Tourinho ◽  
E. Dubois ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Magnetic Fluids ◽  
Ferrite Nanoparticles

Preparation and characterization of ultra-stable biocompatible magnetic fluids using citrate-coated cobalt ferrite nanoparticles

2006 ◽  
Vol 515 (1) ◽  
pp. 266-270 ◽  
Author(s):  
P.C. Morais ◽  
R.L. Santos ◽  
A.C.M. Pimenta ◽  
R.B. Azevedo ◽  
E.C.D. Lima
Keyword(s):  
Cobalt Ferrite ◽  
Magnetic Fluids ◽  
Ferrite Nanoparticles ◽  
Cobalt Ferrite Nanoparticles

Use of the photoacoustic spectroscopy in the investigation of biocompatible magnetic fluids

2005 ◽  
Vol 125 ◽  
pp. 27-30 ◽  
Author(s):  
J. G. Santos ◽  
L. B. Silveira ◽  
A. C. Oliveira ◽  
P. C. Morais
Keyword(s):  
Photoacoustic Spectroscopy ◽  
Magnetic Fluids

Magnetic fluids

1974 ◽  
Vol 112 (3) ◽  
pp. 427 ◽  
Author(s):  
M.I. Shliomis
Keyword(s):  
Magnetic Fluids

COMPLEX SUSCEPTIBILITY OF MAGNETIC FLUIDS: EXPLORING THE ROLE OF HYDRODYNAMICS

2019 ◽  
Author(s):  
Andrey Barbosa Guimarães ◽  
Francisco Ricardo Cunha ◽  
Rafael Gontijo
Keyword(s):  
Magnetic Fluids ◽  
Complex Susceptibility

Influence of a chemical preparation of triazole50% cs on sowing the winter wheat against rust

2020 ◽  
Vol 3 (9) ◽  
pp. 231-233
Author(s):  
AliyevSh.K. ◽  
TuychiyevI.U ◽  
Karimov N ◽  
Umaraliev.M.I
Keyword(s):  
Winter Wheat ◽  
Field Experiments ◽  
Yellow Rust ◽  
Biological Efficiency ◽  
Chemical Preparation ◽  
Seed Growth ◽  
Biological Farming ◽  
The Given ◽  
Farming Efficiency

The article is focused on the data of the carried works on studying biological efficiency of fungi Triazole 50% on sowing the winter wheat against yellow rust as well as on the height, development and fertility of the wheat. On May 5, 2019 from 9 to 10 o’clock under the temperature 21-23 field experiments of Triazol 50% CS manufactured by the firm “Agroximstar” (Uzbekistan) were carried out on winter wheat as a protector of seeds of winter wheat of Pervitsa sort against the disease of yellow rustin the irrigated conditions in an experimental field of the Institute “Istiklal” of Andijan district of Andijan region. The aim of the given research is to study biological-farming efficiency and determination of optimal norms of preparation expenses and to study the influence of fungicide on the height and development as well as on the fertility of the wheat. The received data showed that the preparation Triazole 50% CS effected on the pathogen of yellow rust favorably and besides that it didn’t effect on seed growth and energy of growth negatively.

INFLUENCE OF MAGNETIC NANOPARTICLES ON ACOUSTIC ATTENUATION IN LIQUIDS

Akustika ◽  
2020 ◽  
pp. 8-13
Author(s):  
Štefan Hardoň ◽  
Jozef Kúdelčík
Keyword(s):  
Magnetic Nanoparticles ◽  
Heat Exchangers ◽  
Magnetic Fluids ◽  
Magnetic Flux Density ◽  
Acoustic Attenuation ◽  
Cooling Systems ◽  
Practical Applications ◽  
Acoustic Spectroscopy ◽  
Aggregation Processes ◽  
Diagnostics And Therapy

Magnetic fluids with nanoparticles dispersed in water or oils offer attractive applications in biomedicine and industry. Biocompatible magnetic fluids are used for diagnostics and therapy in medical applications, in pharmacy, and biosensors. Application of ferrofluids is expanding into energy conservation, faster and efficient cooling, and hence better performance in a wide variety of practical applications (in heat exchangers, mainly in micro-cooling systems). For the study of the influence of an external magnetic field on the aggregation processes of magnetic nanoparticles in magnetic fluids, acoustic spectroscopy was used. The jump changes of the magnetic flux density at various temperatures influenced the acoustic attenuation. The measured changes were results of nanoparticle aggregations into new structures.

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