alternating magnetic field philippines

Shape Morphing of Hydrogels in Alternating Magnetic Field

May 22 2019 0183 32 Shape-morphing hydrogels have found a myriad of applications in biomimetics soft robotics and biomedical engineering A magnetic field is favorable for specific applications of hydrogels since it is noncontact and biocompatible at high field strengths However most magnetosensitive shape-morphing structures are made of elastomers rather than hydrogels because the magnetization of magnetic...

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Effects of extremely low frequency alternating

Extremely low frequency magnetic field ELF-MF as a ubiquitous ecophysiological factor has been determined to influence the health of human and animals worldwide In this study we focused on the effects of ELF-MF on growth performance and digestive enzyme activity in juvenile tilapia Oreochromis niloticus Totally 450 fish were exposed to...

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Shape Morphing of Hydrogels in Alternating Magnetic Field

Complex three-dimensional origami structures have been demonstrated using elastomer-magnetic hydrogels as hing We further demonstrate the combination of magnetic navigation and magnetic shape morphing by applying both a direct magnetic field and an alternating magnetic field...

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A Novel Method of Localization for Moving Objects with an

21 The Initial Phase of Alternating Magnetic Field Signal Assuming that the alternating magnetic field signal generated by the mobile source in the x direction is described as H cos t x0 Fourier transform is apply to obtain the corresponding signal frequency of alternating magnetic field and angular velocity is signed as =2 f Then...

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Rotating magnetic field

A rotating magnetic field is a magnetic field that has moving polarities in which its opposite poles rotate about a central point or axis Ideally the rotation changes direction at a constant angular rateThis is a key principle in the operation of the alternating-current motor Rotating magnetic fields are often utilized for electromechanical applications such as induction motors and...

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Electromagnetic induction

Electromagnetic or magnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field Michael Faraday is generally credited with the discovery of induction in 1831 and James Clerk Maxwell mathematically described it as Faraday s law of induction Lenz s law describes the direction of the induced field...

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Alternating magnetic field enhances cytotoxicity of Compound C

We previously reported the efficacy of anti-cancer therapy with hyperthermia using an alternating magnetic field AMF and a magnetic compound In the course of the study unexpectedly we found that an AMF enhances the cytotoxicity of Compound C...

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Extremely low

Apr 07 2009 0183 32 Overhead high-voltage power lines produce an alternating magnetic field AMF attributable to the electric current with a frequency of 50/60 Hz producing what are known as extremely low-frequency magnetic fields ELFMFs Such fields are the strongest up to about 15 μT/380 kV 8 μT/220 kV and 5 μT/110 kV directly under power lines in...

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Demo of alternating magnetic fields

Jun 23 2014 0183 32 How do magnetically sensitive materials iron and magnetite in the human body response when magnetic fields alternate direction For more information visit...

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Aluminum Rings in Alternating Magnetic Field

Jul 11 2020 0183 32 Lenz s law - https //enwikipediaorg/wiki/Lenz 27s_law...

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The antibacterial and antibiofilm activities of mesoporous

Herein mesoporous hollow Fe 3 O 4 nanoparticles MHFPs were synthesized by a one-pot hydrothermal method and the feasibility and possible mechanism of using alternating magnetic field AMF with MHFPs to kill Escherichia coli E coli and Staphylococcus aureus S aureus were explored...

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Influence of alternating and static magnetic fields on

the magnetic carboxymethylcellulose hybrid hydrogels as systems for the controlled release of a model drug ie methylene blue under the application of two alternating magnetic fields AMF 4 Hz 05 T and 40 KHz 2 mT and a static magnetic field SMF 05 T Moreover the magnetic CMC based hydrogels containing differ-ent amounts of CoFe...

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Alternating Magnetic Field Forces for Satellite Formation

ALTERNATING MAGNETIC FIELD FORCES The proposed satellite formation flying approach is based on a well known effect namely that the alternating magnetic field generated by modulating the current in one antenna or coil can interact with the synchronously modulated current in a second coil or antenna to produce a net force and net torque...

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Alternating Magnetic Field Controlled Multifunctional

Response to Alternating Magnetic Field and Drug Release We next measured the remote heating response of the nanospheres in an ac magnetic field 125 Oe 120 kHz Temperature inside the insulated plastic reaction vessels containing the nanosphere solutions was monitored by a fiber optic temperature sensor Photon Control Inc...

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Fluxtrol Application of High Amplitude Alternating

Alternating magnetic field system A system was designed and built to provide high-amplitude AMF in an 1-cm-wide band to the lower abdomen of a mouse The lower abdomen was the intended site of future cancer xenograft and by confining exposure to high-amplitude AMF to this region exposure of tissue outside the intended area was minimized...

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Alternating magnetic field enhances cytotoxicity of

We previously reported the efficacy of anti-cancer therapy with hyperthermia using an alternating magnetic field AMF and a magnetic compound In the course of the study unexpectedly we found that an AMF enhances the cytotoxicity of Compound C an activated protein kinase AMPK inhibitor although this compound is not magnetic...

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AC Magnetic Field

AC magnetic field is generated when an alternating current is passing through a coil The AC current is a time-varying current and it is often a sine-waveThus the magnetic is also time-varyingThere are several techniques for generating high-frequency magnetic field as discussed belowThe magnetic field intensity or strength is depended on the alternating current...

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Alternating magnetic field effects on yield and plant

A magnetic field is an inescapable environmental factor for plants in the soil However its impact on plant growth is not well understood In order to learn how magnetic fields affect plants the effects of alternating the magnetic field MF on the yield and ion accumulation in the leaves of strawberry Fragaria x ananassa was studied Short day strawberry cv Camarosa plants were treated...

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cyclotron Description History Facts Britannica

A cyclotron for example is a device used for scientific research in which subatomic charged particles are accelerated by an alternating electric field in a constant magnetic field It uses a large magnet to produce moderate fields but with a pole diameter that may be several...

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Manipulation of ferrofluids encapsulated in sandwich

presence or absence of magnetic field Zhao et al 2011 Abstract In this study we synthesized Fe 3 O 4 magnetic nanoparticles FMNPs ca 136 nm that we dispersed in aqueous solutions at various concentrations to generate fer-rofluids Alternating magnetic field AMF generated by alternating currents with various frequencies was exploited...

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Alternating Magnetic Field Responses of Magnetic Fluid

Experimental studies of the behavior of magnetic fluid drop under the effect of an external alternating magnetic field were performed using a high speed digital video camera system A small permanent magnet was immersed in magnetic fluid drop and it was fixed with an aluminum bar The surface of magnetic fluid responded to the external magnetic field sensitively...

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PDF ELECTRO

uses diameter of copper wire turns of coil magnetic field of induction magnet etc a s parameters The reached maximum working efficiency in this work is now ca 42 Lee...

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Comparison of international policies on electromagnetic fields

Time-varying electric magnetic and electromagnetic fields EMF are generated by moving electric charges and by variable electric fields such as those generated near a conductor for alternating current Power frequency EMF are generated in the production transport distribution and use of electricity The frequency of alternating current and the...

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US4710708A

The location method uses relatively low frequency electromagnetic fields eg 1-1000 Hz for determining the relative position and/or orientation of a transmitting magnetic dipole antenna by using a vector field receiver The transmitting antenna for subterranean location is preferably a single axis elongated solenoid with a ferromagnetic core...

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Effects of alternating magnetic field on the metabolism of

Application of Alternating Magnetic Field The modulated magnetic field MMF was generated with the modulated AC power supply in a specially designed in a solenoid as previously described İteğin et al 1995 Eight rats were placed in a plexiglas cage in order to expose them to the modulated magnetic field...

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An Alternating Magnetic Field System for Tracking Multiple

A transmitter coil T for generating an alternating magnetic field and a receiver coil R The coils are separated by a distance d measured along their midline m Lines of magnetic flux are indicated by the dashed line labeled 0 Figure 2-2 3 A schematic diagram of an alternating magnetic field movement transducer system...

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Advances in Mechanical Engineering Experimental and

presence of an alternating magnetic field Mohammad Hosein Dibaei Bonab1 Mohammad Behshad Shafii2 and Mohammad Hasan Nobakhti1 Abstract The effect of a magnetic field on the fully developed forced convection of Fe 3O 4 flow inside a copper tube is experimen-tally and numerically investigated The flow is assumed to be under uniform heat flux...

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Enhancing the Growth and Yield of Lettuce Lactuca sativa

Muraji M 1992 Effect of alternating magnetic field on the growth of the primary root of corn Magnetics IEEE Transactions On 28 4 1996-2000 Muraji M T Asai and W Tatebe 1998 The primary root growth rate of Zea mays seedlings grown in an alternating magnetic field...

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An alternating electric field of frequency v is applied

An alternating electric field of frequency v is applied across the dees radius = R of a cyclotron that is being used to accelerate protons mass = m The operating magnetic field B used in the cyclotron and the kinetic energy K of the proton beam produced by it are given by...

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US4542581A

A method for manufacturing a tubular part for travelling-wave tubes which includes firmly placing a magnetically soft tube on a cylindrical body cutting the magnetically soft tube into individual annular pole pieces having planar lateral surfaces throughout inserting a ring of non-magnetic material between each two respective annular pole pieces soldering the non-magnetic rings to the...

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