Nanomagnetite Synthesis via Co-precipitation of Iron Salts by Potassium and Ammonium Hydroxides
Magnetite nanoparticles were synthesized via co-precipitation of iron (II) and iron (III) salts by potassium hydroxide or ammonium hydroxide in aqueous solution. Magnetic properties of magnetite nanoparticles were investigated by magnetometry method.
Подобные документы
Geophysical methods: seismic exploration, gravity, magnetic and electric prospecting. The inverse and the direct problem in geophysics. Permanent or electric parameters of the alternating electromagnetic field. Longitudinal and transverse waves.
презентация, добавлен 23.03.2014Mechanism of the Earth magnetic field. Role of gravity in the evolution of planet and the formation of continents margins. Influence of gravity anomalies on seismic events, weather conditions and tsunami origin. Gravitational vehicle of volcanos.
учебное пособие, добавлен 18.11.2015Establishment of a system of equations for quantum electrodynamics in which an electron, like any other charge, has an electric and a magnetic field. Description of the eigenvector fields using scalar and vector potentials satisfying the equations.
статья, добавлен 28.04.2017The deterministic spherical motion of the ferromagnetic fine particle with frozen magnetic moment is considered. Using the equations of motion and the mode of torsional oscillation. The influence of the static field on the magnitude of the power loss.
статья, добавлен 30.07.2016Langevin, Fokker Planck equations are considered for stochastic spherical motion of the ferromagnetic fine particle with frozen magnetic moment in a viscous carrier. Special attention devotes to the correspondence between dissipative and diffusive terms.
статья, добавлен 30.07.2016The problem of the inverse conversion of powerful microwave energy into direct current energy is considered. The CWC type [4,5] is discussed, in which two microwave cavities are used, having uniform and fourfold electric fields in the interaction gaps.
статья, добавлен 04.11.2018Electromagnetic disturbances at explosions of charges of condensed high explosives for the first time were found out by A.G.Ivanov in summer of 19381. In the subsequent years these effects were repeatedly investigated in many laboratories of the world.
статья, добавлен 04.11.2018Particularly testing for the existence of the Aharonov-Bohm effect with electronics holography. A cross-sectional diagrams of an electron microscope with cooling apparatus. Consideration of the value of the electromagnetic potentials in quantum mechanics.
статья, добавлен 11.09.2012Investigation of physical-energy States, reactions and excitation spectra in deformed heavy nuclear systems, magnetic spectrograph. Modeling schemes States actinide nuclei fissility. Calculation of inertia parameters of energy in the examined groups.
статья, добавлен 11.11.2013Poincare Transformations of the Direct Sum Field. On Site Verbal Explanations at the Poster Session. Vector-Tensor Field, Translation Matrix. Constant Magnetic and Electric Field. Origin of the Connection. Parallel Translation and The Lorentz Force Law.
статья, добавлен 11.09.2012Studding of Deposition of uniform coatings in the vacuum arc deposition setup. A control unit consisted of two electromagnetic coils installed under substrate of 400 mm dia. exposed to the plasma flux at a distance of 325 mm from the plasma duct exit.
статья, добавлен 30.07.2016The three-body reactions from interaction alpha-particle with energy 67 MeV and tritium were investigated in kinemanically-complete experiment. The excitation energies and energy widths of some unbound levels of nuclei 5Не and 6Li were determined using.
статья, добавлен 08.10.2013The system of Dirac equations describing the dynamics of quarks in hadrons metric. Assumed that the quarks interact via an external Yang-Mills field. Magnetic moments of the proton, neutron and lambda baryon. Model of the baryons in a stationary metric.
статья, добавлен 29.04.2017We investigate comparison methods of different geometric configurations of adaptive antenna arrays for communications on purpose to estimate directions-of-arrival of several external signals. The investigated antenna configurations have four elements.
статья, добавлен 04.11.2018The analytical expression for the calculation of the relay mode frequency and power. Development of parameters of electric energy converters. The absence of the phase shift between voltage and current. Solution EMC problems. The reduction of power losses.
статья, добавлен 29.07.2016The theory of wave multiple scattering of the Lippmann-Schwinger integral equation for the tensor of the operator of quantum mechanical scattering of an electric field by a non-magnetic particle. Wave coupling between the elements of a particle.
научная работа, добавлен 05.11.2018Nuclear energy as the main source of clean energy. Synthesis of the creation of the International Atomic Energy Agency to limit opportunities and to promote cooperation in the production, research and development of nuclear energy for peaceful purposes.
статья, добавлен 14.10.2020Analyzed of the fundamental ideas of mathematical physics, which are accepted as the foundation in the attempt to solve the Navier-Stokes. Characteristic of the equations of dynamics of Hamilton. Completed the principal part of empirical physics.
статья, добавлен 30.03.2017Importance of the different parameters of wearing out of power transformer insulation prediction structure and operating factors. Selection of configuration and parameters of paper insulation and transformer oil technical state models is investigated.
статья, добавлен 29.07.2016Properties of nuclei, heavy ion collisions and neutron stars. An estimate of the coefficient of incompressibility. Frequent mode of interaction of a particle collision. The theory for the microscopic description of the various modes of giant resonances.
статья, добавлен 06.11.2013Digital signal processing algorithms for nuclear particle spectroscopy. Algorithms for a digital shaping-filter amplifier, for a digital pile-up elimination scheme and for ballistic deficit correction were investigated using a high purity detector.
статья, добавлен 24.09.2013The classical electromagnetic interaction of a point charge. The Darwin-Lagrangian and electromagnetic fields. Two-particle model for a magnetic moment. Conservation laws and transition to a multiparticle magnet. Forces in the multiparticle limit.
статья, добавлен 11.09.2012Distribution of solid solution on phase diagram. Solid homogeneous feldspars. Term for albite exsolution lamellae in K-spar matrix. Examples of post-crystallization. Smoother boundaries from recrystallization. Replacement of one mineral by another.
презентация, добавлен 23.02.2012Assessment of environmental, social and climatic risks of modern Europe. Providing clean energy to the European Union. Development and implementation of an energy sufficiency and efficiency strategy. Expansion of production of renewable energy sources.
статья, добавлен 16.11.2021Split-phase symmetrical motor drive on the base of two voltage source inverters, controlled by algorithms of synchronized pulse width modulation, has been investigated. Simulation results are presented for dual three-phase power conversion systems.
статья, добавлен 02.02.2019