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We report a microfluidic system with ultrahigh magnetic field for the labelfree separation of nanoscale particles Using highpermeability alloys and onchip integrated magnetic micropole arrays the external strong magnetic field can be conducted into the microfluidic device to form a magnetic field of high intensity and gradient therefore
Jul 01 2000 adshelpatcfaharvardedu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A
A theory is presented that deciphers the puzzle of magnetic field penetration into a multiion lowcollisionality plasma of an initially nearly uniform electron density observed in recent plasma experiments It is shown that if the plasma ion composition is nonuniform then even if the total electron density is initially uniform the pushing by the magnetic field generates the electron
Mar 19 2018 Using molecular dynamics MD simulations a porous graphene membrane was exposed to external electric fields to separate positive and negative ions from saltwater and to produce fresh water It was observed that by increasing the strength of the applied electric field ion separation improved noticeably In addition to obtain fresh water the designed system included two graphene
Jul 21 2017 The use of strong magnetic field gradients and high magnetic fields generated by permanent magnets or superconducting coils has found applications in many fields such as mining solid state chemistry biochemistry and medical research Lab scale or industrial implementations involve separation of macro and
PLASMA SYSTEM FOR ELEMENT SEPARATION G Paskalov1 A Wong NonLinear Ion Dynamics LLC Los Angeles California USA 1Consultant Abstract In this paper we describe the characteristics of a system in which copper and gold metals are separated by using ionized plasma in a strong magnetic field
Feb 12 2016 In these collisions extremely strong magnetic fields arise due to the fast motion of the ions 242526 and these magnetic fields induce charge separation and chirality separation in
Jun 03 2013 OSTIGOV Journal Article Towards an electromagnetic field separation of deposited material implemented in an ion beam sputter process Towards an electromagnetic field separation of deposited material implemented in an ion beam sputter process Full Record Other Related Research
The most difficult stage is the separation from the REE ion mixture allowing pure metals extraction The distribution of ions in the solution takes place in a steady magnetic field generated
The magnetic chromatography MC is a very useful system for an ion andor fine magnetic particle separation due to its strong magnetic field gradients in a very small flow channel
It is shown that a curved magnetic field can be used to separate ions in a multicomponent plasma Without selective ion preheating the separation over one cycle is inefficient the separated ion fractions will only be enriched with ions of the corresponding isotopes Selective ion cyclotron resonance heating makes it possible to achieve essentially a complete separation of the ions
The magnetic field the electron density and the ion velocities in a multispecies plasma conducting a high fastrising current are determined using simultaneous spectroscopic measurements It is found that ion separation occurs in which a lightion plasma is pushed ahead while a heavyion plasma lags behind the magnetic piston We show that most of the momentum imparted by the magnetic field
Magnetic sector instruments in which ion separation is achieved by passage through a magnetic field allow highresolution spectra to be acquired for the calculation of elemental compositions Although maximum scan speeds are lower than with quadrupolebased systems as the result of magnetic hysteresis they are sufficient for most applications
The magnetic eld the electron density and the ion velocities in a multispecies plasma conducting a high fastrising current are determined using simultaneous spectroscopic measurements It is found that ion separation occurs in which a lightion plasma is pushed ahead while a heavyion plasma lags behind the magnetic piston
The driving force behind this SD in Mn ferrite films is considered to be an ionimpingementenhanced diffusion that is induced by the application of magnetic field during film growth The phase separation to Mnrich and Ferich phases in Mn ferrite films is confirmed from the Braggs peak splitting and the appearance of the patterned
Nevertheless attempts of rare earth ion separation in an inhomogeneous magnetic field were reported by Ida and Walter Noddack in the 1950s 789
Aug 27 2001 It is found that ion separation occurs in which a lightion plasma is pushed ahead while a heavyion plasma lags behind the magnetic piston We show that most of the momentum imparted by the magnetic field pressure is taken by the reflected light ions and most of the dissipated magnetic field energy is converted into kinetic energy of these ions even though their mass is only a small part of
The transport properties of block copolymerderived polymer electrolyte membranes PEMs are sensitive to microstructural disorder originating in the randomly oriented microdomains produced during uncontrolled selfassembly by microphase separation This microstructural disorder can negatively impact performance due to the presence of conductivityimpeding grain boundaries and the resulting
Ion SeparationIsolation It is during this stage that the ions are separated by their mz values using electric andor magnetic fields Different types of mass analyzers can be used but the gist is the same the interaction between differently charged and sized molecules and the fields causes the ions to separate based on the mz
May 18 2021 TOF Time of Flight Mass Analyzer TOF Analyzers separate ions by time without the use of an electric or magnetic field In a crude sense TOF is similar to chromatography except there is no stationary mobile phase instead the separation is
Similarly to the magnetic analyzer ion separation is based on the circular motion of a charged species in a magnetic field in ICR instruments as well The difference is that in the ICR ions undergo several full cycles in the ICR cell
Jul 28 2019 The scientists found that a magnetic field as low as 100 mT was capable of aligning the flakes For comparison this magnetic strength is larger than the average fridge magnet 1 mT but significantly smaller than an MRI magnet 15 T As a control they also prepared reference electrodes in the absence of a magnetic field
An ionized solution or electrolyte such as sea water is caused to flow through a conduit while passing through a magnetic field produced between magnets of opposite polarity disposed in spaced relationship adjacent opposite wall portions of the conduit Extending between these magnets are two spaced opposite conduit wall portions of electrically nonconducting porous material such as porous
Jun 18 2014 We varied the ion separation d between 218 and 276 micrometres and measured the electrons weak millihertzscale magnetic interaction as a function of distance in the presence of magnetic
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