نتایج جستجو برای: magnetic water

تعداد نتایج: 879176  

H. Ghanbarnejad, T. Poursaberi V. Akbar

The discharge of lead containing effluents into the environment and water bodies is harmful for the human, animals, aquatic flora and fauna. Herein, a novel surface engineered magnetic nanoparticle for removing Pb2+  ions was studied. After surface modification of the magnetite by 3-amino-propyltriethoxysilane (APTES) magnetic nanoparticles with covalently linked porphyrins were synthesize...

Despite the numerous studies on the effect of the magnetic field on plants, the exact mechanism of these effects has not yet been determined. The aim of this study was to compare the effect of magnetic field on growth and photosynthetic characteristics of two almond species (Amygdalus scoparia and A. eburnea). For this purpose, 21-day-old almond plants were affected by 10 mT static magnetic fie...

Journal: :international clinical neurosciences journal 0
golamreza hassanzadeh professor, department of anatomy, faculty of medicine, tehran university of medical sciences, tehran, iran zahra fallahi msc, department of animal biology, faculty of biological science, kharazmi university, tehran, iran mohammad khanmohammadi professor, department of analytical chemistry, faculty of chemistry, imam khomeini international university, qazvin, iran hamideh elmizadeh ph.d student, department of analytical chemistry, faculty of chemistry, imam khomeini international university, qazvin, iran mohammad sharifzadeh professor , department of pharmacology & toxicology, faculty of pharmacy, tehran university of medical sciences, tehran, iran simin mahakizadeh ph.d student , anatomy department, school of medicine, tehran university of medical sciences, tehran, iran

alzheimer's disease (ad) is a progressive neurodegenerative disease characterized by memory and cognitive dysfunction due to neuronal cell loss in higher brain centers. senile plaques containing amyloid β (aβ) are associated with this disease as well as a reduction in cholinergic neuron numbers. tacrine is a reversible cholinesterase inhibitor in clinical use to treat moderate forms of ad. chit...

This research study presents a numerical study on forced convection heat transfer of an aqueous ferrofluid passing through a circular copper tube in the presence of an alternating magnetic field. The flow passes through the tube under a uniform heat flux and laminar flow conditions. The primary objective was to intensify the particle migration and disturbance of the boundary layer by utilizing ...

Journal: :Physical review letters 2014
Fabrizio Nichele Atindra Nath Pal Patrick Pietsch Thomas Ihn Klaus Ensslin Christophe Charpentier Werner Wegscheider

We present transport measurements performed in InAs/GaSb double quantum wells. At the electron-hole crossover tuned by a gate voltage, a strong increase in the longitudinal resistivity is observed with increasing perpendicular magnetic field. Concomitantly with a local resistance exceeding the resistance quantum by an order of magnitude, we find a pronounced nonlocal resistance signal of almost...

Journal: :Physical review letters 2002
J Jaroszyński T Andrearczyk G Karczewski J Wróbel T Wojtowicz E Papis E Kamińska A Piotrowska Dragana Popović T Dietl

We report on the observation of the Ising quantum Hall ferromagnet with Curie temperature T(C) as high as 2 K in a modulation-doped (Cd,Mn)Te heterostructure. In this system field-induced crossing of Landau levels occurs due to the giant spin-splitting effect. Magnetoresistance data, collected over a wide range of temperatures, magnetic fields, tilt angles, and electron densities, are discussed...

Journal: :Comparative biochemistry and physiology. Part A, Molecular & integrative physiology 2017
Alessandro Cresci Rosario De Rosa Nathan F Putman Claudio Agnisola

Rheotaxis, the unconditioned orienting response to water currents, is a main component of fish behavior. Rheotaxis is achieved using multiple sensory systems, including visual and tactile cues. Rheotactic orientation in open or low-visibility waters might also benefit from the stable frame of reference provided by the geomagnetic field, but this possibility has not been explored before. Zebrafi...

The effect of magnetic field on the liquid-liquid equilibrium of two ternary systems (water + acetic acid + butyl acetate and water + acetic acid + dimethyl succinate) at 298.15 K under atmospheric pressure was investigated. The results obtained show that the strength of the magnetic field (0.02 T) affects the solubility of acetic acid in the used organic solvents. Distribution coefficients and...

Journal: :Physical review letters 2002
J Jorzick S O Demokritov B Hillebrands M Bailleul C Fermon K Y Guslienko A N Slavin D V Berkov N L Gorn

We show experimentally and by model calculations that in finite, nonellipsoidal, micrometer size magnetic thin film elements the dynamic magnetic eigenexcitations (spin waves) may exhibit strong spatial localization. This localization is due to the formation of a potential well for spin waves in the highly inhomogeneous internal magnetic field within the element.

Fe3O4 nanofluid fully developed forced convection inside a copper tube is empirically investigated under the effect of a magnetic field. All of the investigations are performed under laminar flow regime (670≤Re≤1700) and thermal boundary conditions of the tube with uniform thermal flux. The tube is under the effect of a magnetic field in certain points. This research aims to study the effect of...

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