Investigation of influences parameters and topology of magnetic field peripheral zone stationary plasma thruster on the efficiency of the cathode-compensator
In this paper it is investigated an influence of magnetic field characteristics (parameters and topology) of SPT using SPT-100 thruster model on efficiency of cathode-compensator operation while the cathode is translated. During investigations the comparison results of experiments and calculations suggests ...
Dipolarization of the earth magnetic field and charge particles precipitation from the magnetic flux tube
During the expansion phase of the substorm in the nightside magnetosphere enhancement of the magnetic field and decrease the plasma pressure is observed simultaneously. Enhancement of the magnetic field is recorded at first in the tail of the magnetosphere, and then at more closer distances from the Earth. This process takes a few minutes and ...
Building transmitter circuit for the study of parameters of system of secondary emitters
Suggest a method for constructing a system of magnetic coils, of the workspace in which excited облучающее sample magnetic field used to study the parameters of the system of secondary emitters. Theoretically formulated and practically implemented model of the feed, providing the creation ...
Computer modeling of magnetic systems of stationary plasma thrusters
Method of making calculations of magnetic field in application programs package NISA is presented, which makes possible to determine its parameters and topology with acceptable accuracy. Calculations allow to optimize construction of thruster’s magnetic systems, to determine electrical ...
Magnetic resonance properties of Fe3Si/ MgO thin film structures
The article presents anisotropic properties investigation of Fe3Si / MgO thin film structures with different growing conditions and Si content. Growing conditions and Si concentration parameters make an impact on shaping of induced magnetic crystalline anisotropy. Results of experiment data simulation allows to extract magnetic anisotropy constants, proved by known results for same structures.
1.
Kudrnovský J., Christensen N.
E., Andersen O.
K.
Electronic structures ...
Application of radio physical methods for diagnostics of functional properties of magnetic tunnel transitions
The article presents the main investigation results of the structural and magnetic parameters of a series of samples formed on single-crystal (MgO) and on amorphous substrates Si/SiO2 structures. Were assessed quality indicators such as the paramagnetic phase, the presence of impurities, and an analysis of the functional properties ...
Study of the configuration of the core of the magnetization source of magnetic systems of electric propulsion
Results of researches of influence of various forms of cores of external sources of magnetising force of magnetic systems of electric propulsion on azimuthal evenness of magnetic field distribution in an operating interpolar interval are presented.
1.
Гопанчук В. В.
Плазменный двигатель с замкнутым дрейфом ...
Ferromagnetic resonance research of multilayer structures for magnetic tunnel junctions
The article presents research on magnetic properties and magnetic interaction of a 3-layer ferromagnetic — insulator — ferromagnetic
nanoscale thin film structures by the ferromagnetic resonance method (FRM). The results proved by magnetic hysteresis measurement data
show FRM diagnostic ...
Non-stationary polar wind in presence of magnetosphere convection
Time-depended hydrodynamic model TUBE 7 is used for modeling of field-aligned motions and temperature of polar ionosphere ions taking into account magnetosphere convection. It was shown tube geometry changing have a great influence on basic parameters of polar magnetosphere thermal plasma.
1.
Banks P. M., Holzer
Т
.
Е
.
The polar wind // J. Geophys. Res. 1968. Vol. 73, №
21. P. 6846—6854.
2.
Banks P. M., Holzer
Т
.
Е
.
Features of plasma transport in the upper atmosphere...
The detection of nuclear quadrupole resonance signals with limited data
....
V. Fedotov, Hao Guoxin, Jin Yanbo, Ren Tianliang, Zhang Guojin.
The Detection of Industrial Explosives by the Quadrupole Resonance Method: Some Aspects of the Detection of Ammonium Nitrate and Trinitrotoluene; In:Explosives Detection using Magnetic and Nuclear Resonance Techniques. Series: NATO Science for Peace and Security Series. Subseries: NATO Science for Peace and Security Series B: Physics and Biophysics. Fraissard, Jacques; Lapina, Olga (Eds.) Springer 2009, 295 p., 231—244.
3....
A surprising tale of long-periodic spin oscillations in the synthetic antiferromagnets: some exact solutions
This article is devoted to construction of a mathematical theory capable of explaining those experimentally observable periodic magnetic oscillations in the synthetic antiferromagnet Pt/Co/Ir/Co/Pt that take place after a switch in the direction of an external magnetic field. In particular, we demonstrate that in order to understand the aforementioned phenomenon it is essential ...
Side resonances in diamond: Impact of hyperfine and nuclear quadrupole interactions
The structure of optically detected magnetic resonance spectra of diamond crystal is examined. It is shown that in the absence of external magnetic field the hyperfine structure of side resonances caused by the hyperfine interactions and is not influenced by the nuclear quadrupole interaction....
Optimization of the thin film Heusler alloys formation technique by the method of Pulsed laser deposition
Two methods of formating Heusler alloy Ni-Mn-In thin filmsby pulsed laser deposition were developed — two-lasers co-deposition and deposition in low argon pressure. Structural and magnetic properties of grown samples were investigated.
1. Graf T., Felser C., Parkin S. S. P. Simple rules for the understanding of Heusler compounds // Progress in Solid State Chemistry. 2011. № 39. Р. 1—50.
2. Васильев А. Н., Бучельников ...
Distribution of NQR relaxation times in the rotating frame of reference in micro-sized crystallites
... spin-lattice relaxation times in a rotating frame for 35Cl NQR in potassium chlorate, as well as the nutation interferograms. To obtain the distribution of relaxation times, a multi-exponential decay inversion of the longitudinal component of the nuclear magnetization in a rotating frame was used. The multimodal nature of distributions is explained by the influence of surface irregularities and impurities.
1. Slichter C. P. Principles of Magnetic Resonance // Springer-Verlag. 1990. P. 242—246.
2. ...
Magnetiс–resonance properties of Fe3O4 thin films
Magnetiс—resonance properties of Fe3O4 thin films with sublayer Fe on МgO and on Si/SiO2 substrates have been investigated. The magnetic properties strengthening was established. This fact gives hope of success using of such structure as magnetic tunneling junction.
1.
Ze Zhang and Sashi Satpathy
// Phys. Rev. B., 44, 13319 (1991).
2.
Yanase A., Siratory K.
// J. Phys. Jpn....
Improving the design of low-frequency transmitting antenna systems
... Теория тракта распространения радиоволн линий радиосвязи. Л., 1984.
Burmistrov V. I., Ponimatkin V. E., Karpinskaya T. A., Goglev V. A., Kuzmichev S. A.
loop antenna, polarization of radiation, ferrite magnetic circuit, electric vector, magnetic permeability, radiated power
50-56
Enigma of magnetism in the mystery of the romantic spirit of E. T. A. Hoffmann (based on the novel «Der Magnetiseur»)
... a/M, 2000.
22. Schubert G. H. Ansichten von der Nachtseite der Naturwissenschaften // Kindlers Neues Literatur Lexikon / hrsg. von W. Jens. München, 1998. S. 28—29.
Gilmanov V. Kh., Koptsev I. D., Likhina N. E.
Hoffman, romanticism, sophianic, magnetism, demonization, mesmerism, freemasonry
99-106
Karamzin, Kant, and Lavater — Intersecting Biographies
... printed mentioning of Kant in Russian. Karamzin was looking forward to meet J. K. Lavater in Zürich, with whom he had already corresponded for three years, but Kant warned him of Lavater’s excessive imagination, which let him believe in dreams and magnetism. Lavater’s ‘Schwärmerei’ was above all attacked by the publishers F. Nicolai and J. E. Biester, whom Karamzin would soon come in touch with in Berlin. The young traveler was appalled by the caustic tone of the debate among philosophers,...
Side resonances in diamond: influence of isotopic substitution of carbon
We discuss the structure of optically detected magnetic resonance (ODMR) spectra of diamond crystal. We propose the new approach to the calculation of hyperfine interaction in composed system, consisted of negatively charged nitrogen-vacancy (NV) center and nearby C13 nuclear spin. Energy levels, ...
The solution of a problem of detection of a signal at vertical sounding of an ionosphere
In the real work the solution of a problem of determination of parameters of the radio impulse reflected from an ionosphere is considered. The noise component, and also the multibeam structure of a signal arising at formation two magnetoionic component is thus considered. Expression for definition of probability of reception of a radio impulse in these conditions is received.
1. Перов А. И. Статистическая теория радиотехнических систем. М., 2003...
Effect of crystallite size of powder on NQR relaxation time
... average crystallite size, which is due, mainly, due the process of spin-spin diffusion. To obtain the distribution of relaxation times used a multi-exponential inversion of the recessions of the longitudinal and transverse components of the nuclear magnetization.
1. Hornemann J. A., Codd S. L., Romanenko K. V. et al. T2—T2 exchange in biofouled porous media // Diffusion Fundamentals. 2009. Vol. 10. P. 1.1—1.3.
2. Borgia G. C., Brown R. J. S., Fantazzini P. Uniform-Penalty Inversion of ...
Determination of the optimal approach to measuring the spleen sizes by sonography
... spleen by ultrasonography. Methodically correct examination is the key to the accurate determination of splenomegaly. The article describes well-known methods for determining its size and volume, which are used in sonography, computed tomography and magnetic resonance imaging. The aim of the study is to identify the most accurate way to measure the volume of the spleen during ultrasound examination. Therefore, the authors performed the ultrasound examination of the spleen of 40 patients, the measurement ...
Features of the formation of TEMPEST in a computer keyboard from the point of view of ensuring information security
The paper analyzes the possibilities of the formation of spurious electromagnetic radiation and interference in computer keyboards with the ps/2 interface, which can lead to information leaks. The dependences of the physical parameters of the PEMIN on the design features of the equipment used are established. Possible ...
Method for estimating the width of a domain wall from a signal generated by a domain wall when passing through a measuring coil
The formula for the emf Faraday induction from a domain wall moving in a microwire is derived. The time derivative of the magnetic flux in the measuring coil is expressed through a five-fold integral over the wall volume and over the coil section surface. The resulting expression is compared with those obtained previously with a simplified description of the measurement ...
The influence of implantation on the bright-ness of nitrogen-vacancy centers
... assume that during cascade transitions between the states of some NV- centers obtained by implantation, an intense 13C NMR signal can be observed. It is important to note that optical pumping of such NV- centers can be carried out in an arbitrary magnetic field.
Ivanov A. I., Shpilevoi A. A., Kulagina A. A.
diamond, implantation, level anti-crossing
51-58
Hysteresis loops for a bulk ferromagnetic by Heisenberg model
In a framework of Heisenberg theory, that link quantum-statistical description taking Gauss distribution into account, explicit form is obtained by permutations group theory, the division paramagnetic/ferromagnetic is studied. The magnetization curves are built for a given set of parameters, such as exchange integral, number of closest neighbours and temperature. In a special range of the parameters a transition from unique solution of the resulting Heisenberg equation to multi-valued ...
Optimization of the parameters of transmitting antenna systems of the SDV- and DV-bands
... of the SDV- and DV- bands based on the study of electrodynamic properties with the possibility of improving their design, mass-dimensional and radiating parameters. These ranges are widely used for communication with mobile objects in areas with high magnetic activity, as well as in Maritime Strait zones; for direction finding of radiation when determining the location of an aircraft or vessel. The results of the work can find practical application in solving problems of improving the safety ...
Photoluminescence of the 15NV–-center created by implantation
... Nature Physics 7, 459 (2011).
4. Hall L. T., Kehayias P., Simpson D. A. et al. Electron spin resonance spectroscopy via relaxation of solid-state spin probes at the nanoscale. arXiv:1503.00830v1[quant-ph] (2015).
5. Jarmola A. et al. Optically detected magnetic resonances of NV ensembles in 13C enriched diamond. arXiv:1608.08706v1[quant-ph] (2016).
6. Oort van E., Manson N. B., Glasbeek M. Optically detected spin coherence of the diamond NV centre in its triplet ground state. J. Phys. C 21, 4385 (1988)....
The pattern of electromagnetic fields of industrial frequency in the central area of Kaliningrag city
... levels safety. The conducted research of electromagnetic fields of industrial frequency has shown that intensity of electric fields in the central part of Kaliningrad reaches considerable values only in immediate proximity to a high-voltage line. Magnetic fields of industrial frequency are extended everywhere and extremely unevenly that has been presented in the original map. Hygienic standards of magnetic induction are observed, but safety levels are exceeded in the abnormal locations caused ...
Modern aspects of diagnostics of compressional neuropathy of the median nerve in the carpal canal
... костно-мышечной системы: Практическое руководство. М., 2007.
14. Deniz F.E., Öksüz E., Sarikaya B., et al. Comparison of the Diagnostic Utility of Electromyography, Ultrasonography, Computed Tomography, and Magnetic Resonance Imaging in Idiopathic Carpal Tunnel Syndrome Determined by Clinical Findings // Neurosurgery. 2012. Vol. 2012 (3). P. 610—616.
15. Ibrahim I., Khan W.S., Goddard N., Smitham P. Carpal Tunnel Syndrome: A Review of the Recent ...
Closed lattice of Toda equations
... the Darboux and Schlesinger transformations leads to closed dressing chains.
1. Matveev V. B., Salle M. A. Darboux Transformations and Solitons. Berlin ; Heidelberg, 1991.
2. Yurov A. V., Yurov V. A. The Landau-Lifshitz Equation, the NLS, and the Magnetic Rogue Wave as a By-Product of Two Colliding Regular «Positons» // Symmetry. 2018. Vol. 10, iss. 4, 82. arXiv: 1701.04903.
3. Свинолупов С. И., Ямилов Р. И. Явные автопреобразования для многополевых ...
System analysis and methodology for developing a software product of a mathematical model of physical processes for the aviation industry
... the Darboux and Schlesinger transformations leads to closed dressing chains.
1. Matveev V. B., Salle M. A. Darboux Transformations and Solitons. Berlin ; Heidelberg, 1991.
2. Yurov A. V., Yurov V. A. The Landau-Lifshitz Equation, the NLS, and the Magnetic Rogue Wave as a By-Product of Two Colliding Regular «Positons» // Symmetry. 2018. Vol. 10, iss. 4, 82. arXiv: 1701.04903.
3. Свинолупов С. И., Ямилов Р. И. Явные автопреобразования для многополевых ...
Assessment of hepatic volume ex vivo by the formulas of the ultrasound volumetry
... Radiography. 2016. Vol. 22, № 2. P. 125—130.
14. Zoli M., Pisi P., Marchesini G. et al. A rapid method for the in vivo measurement of liver volume // Liver. 1989. Vol. 9, № 3. P. 159—163.
15. Glenn D., Thurston D., Garver P., Beutler E. Comparison of magnetic resonance imaging and ultrasound in evaluating liver size in Gaucher patients // Acta Haematol. 1994. Vol. 92, № 4. P. 187—189.
16. Elstein D., Hadas-Halpern I., Azuri Y. et al. Accuracy of ultrasonography in assessing spleen and liver size ...
Study of the main features of sedimentation in the Labrador Sea during the Late Quaternary
... Paired δ18O signals of Neogloboquadrina pachyderma (s) and Turborotalita quinqueloba show thermal stratification structure in Nordic Seas // Mar. Micropaleontology. 2003. Vol. 48. P. 107—125.
11. Stoner J. S., Channell J. E.T., Hillaire-Marcel C. The magnetic signature of rapidly deposited detrital layers from the deep Labrador Sea: Relationship to North Atlantic Heinrich layers // Paleoceanography. 1996. Vol. 11 (3). P. 309—325.
12. Stow D.A.W., Piper D.J.W. Deep-water fine-grained sediments; history,...
he new formula of the liver volume calculation: the integration into the automatic ultrasound diagnostic work station (AWS) "Assistant"
... Sonography. 2014. Vol. 30, № 6. P. 296—306.
9. Zoli M., Pisi P., Marchesini G. et al. A rapid method for the in vivo measurement of liver volume // Liver. 1989. Vol. 9, № 3. P. 159—163.
10. Glenn D., Thurston D., Garver P., et al. Comparison of magnetic resonance imaging and ultrasound in evaluating liver size in Gaucher patients // Acta Haematol. 1994. Vol. 92, № 4. P. 187—189.
11. Elstein D., Hadas-Halpern I., Azuri Y., et al. Accuracy of ultrasonography in assessing spleen and liver size ...
Simulating of non-stationary processes in the ionospheric plasma
A model of distribution of concentration, velocities and temperatures of ions along a geomagnetic flux tube is considered. The model also examines the main processes of chemical kinetics, ambipolar diffusion, influence of horizontal neutral wind and plasma heating by superthermal electrons. The article presents numerical calculation results of variations of charged particles concentration in the ionosphere and the plasmasphere. The comparative analysis of various hydrodynamic approximations for the...
The ultrasound volumetry: selecting optimal formula based on linear liver dimensions (ex vivo study)
... ultrasonography in assessing spleen and liver size in patients with Gaucher disease: comparison to computed tomographic measurements // J. Ultrasound Med. 1997. Vol. 16(3). P. 209—211.
17. Glenn D., Thurston D., Garver P., Beutler E. Comparison of magnetic resonance imaging and ultrasound in evaluating liver size in Gaucher patients // ActaHaematol. 1994. Vol. 92(4). P. 187—189.
18. Patlas M., Hadas-Halpern I., Abrahamov A. et al. Spectrum of abdominal sonographic findings in 103 pediatric patients ...
Use of the genetic algorithm for devising a formula for liver volumetry
... ultrasonography in assessing spleen and liver size in patients with Gaucher disease: comparison to computed tomographic measurements // J. Ultrasound Med. 1997. Vol. 16(3). P. 209—211.
16. Glenn D., Thurston D., Garver P., Beutler E. Comparison of magnetic resonance imaging and ultrasound in evaluating liver size in Gaucher patients // Acta Haematol. 1994. Vol. 92(4). P. 187—189.
17. Hiroshige S., Shimada M., Harada N. et al. Accurate preoperative estimation of liver-graft volumetry using three-dimensional ...
An impacton solution for the vortex filament
... P., Klein C., Matveev V. On multi-rogue wave solutions of the NLS equation and positon solutions of the KdV equation'// Eur. Phys. J. Spec. Top. 2010. Vol. 185. P. 247—258.
6. Yurov A. V., Yurov V. A. The Landau-Lifshitz equation, the NLS, and the magnetic rogue wave as a by-product of two colliding regular “positons”, Arxiv: 1701.04903.
7. Lamb G. L. Elements of soliton theory // John Wiley & Sons. 1980.
Chirikov R., Yurov V.
vortex filament, nonlinear Schrödinger equation, impacton
...
Digital smart technologies as a method of expansion of educational field physical laboratory of general physics
... computer algebra systems, virtual instrumentation. The examples two laboratory works on atomic physics, illustrating methods of expansion of educational resources by means of intelligent digital technology. In the first study the motion of electrons in a magnetic field along a helical line. In the second, combines the advantages of a prism spectrometer with digital spectrometer. It is shown that the developed method improves the accuracy of measurement and calculation of physical parameters.
1. Язык ...
Simulating of ion and electron trajectories in thermal plasma in electric field of a satellite by the molecular dynamic method
... satellite and thermal plasma was considered. The ion and electron trajectories for different initial velocities and directions are shown. The calculated particle trajectories have some deviations from the classical trajectories in crossed electric and magnetic fields. The examples of closed trajectories of electrons are discussed.
1. Гальперин Ю. И., Гладышев В. А., Козлов А. И. и др. Электромагнитная совместимость научного космического ...
Stationary plasma thruster with permanent magnets for small-sized space-crafts
This paper presents the description of a stationary plasma thruster with permanent magnets. The magnetic field generated by constant magnets is estimated, and configuration of the thruster magnetic system is defined herein.
1. Горшков О. А., Муравлёв В. А., Шагайда А. А. Холловские и ионные ...
On the analysis of NMR spectra
... резонанса. М., 1967.
3. Варшалович Д. А., Москалев А. Н., Херсонский В. К. Квантовая теория углового момента. Л., 1975.
Ivanov A., Ivanov A.
multiplet, entangled states, nuclear magnetic resonance.
7-11
Teoretical nonstationary two-dimensional modal with altitude-longitudinal variations of ionosphere parameters
By means of mathematical two-dimensional nonstationary model mechanisms of formation of longitudinal effect in a middle-latitude ionosphere are probed and is shown that one of main engines is the thermosphere wind in combination with earth magnetic field geometry. Model calculations of dependence of longitudinal effects in middle-latitude F-area from levels of geomagnetic and solar activity are carried out. It is shown that with increase in a geomagnetic disturbance the behavior of electronic ...
Dynamical invariants and manipulation of electron spin in a quantum dot
In this paper we discuss electrical manipulation of a spin an electron in quantum dot within a weak magnetic field. Approach to describing this process is based on Lewis — Riesenfeld dynamical invariants. Necessary conditions of a spin-flip process are derived.
1. Loss D., DiVincenzo D. P. Quantum computation with quantum dots // Phys. Rev. 1998....
The ageing and morphology of porous glasses with embedded materials
... recrystallization on sample surface. Space distribution of tin filled up the pores of porous glasses has been studied using a combination of ionic etching and Auger-spectroscopy.
1. Golosovsky I. V., Mirebeau I., Sakhnenko V. P. et al. Evolution of the magnetic phase transition in MnO confined to channel type matrices: eutron diffraction study // Physical Review. 2005. B72. P. 144409-1—144409-5.
2. Fokin A. V., Kumzerov Yu. A., Naberezhnov A. A. et al. Temperature Evolution of Sodium Nitrite ...
The method of multipulse registration of nuclear magnetic resonance signal in unhomogeneous magnetic field
This paper presents the results of a series of experiments whose purpose was to investigate the possible use of composite pulses to improve the homogeneity of the magnetic field and study the possibility of identifying compounds based on the relaxation characteristics of the NMR signals.
1. Хаусен К. Х., Кальбитцер Х. Р. ЯМР в медицине и биологии. Киев, 1993.
2. Эрнст ...
Multiple RuO2-chip thermometer for applications in 0,02—30 K range
A multiple RuO2-chip thermometer based on commercial Vishay RCW575 chips for applications in 0,02—30 K range is proposed. Possible design and packaging of the sensor are suggested. Thermometer saturation and thermal resistance of our sensor are measured and compared with a single-chip configuration and commercial Lakeshore ROX-102A thermometer.
1. Yeager C. J., Courts S. S. A Review of Cryogenic Thermometry and Common Temperature Sensors // IEEE sensors journal. 2001. Vol. 1, № 4. P. 352—360...
The current operators of spin-polarized electrons in quantum dots
A detection of spin polarized tunneling current through the quantum dot in a circularly polarized magnetic field is investigated. Current operators and proposed of successive iterative procedure for elaboration those operators are introduced.
1. Engel H. A., Loss D. Single spin dynamics and decoherence in a quantum dot via charge transport // arXiv:cond-mat/109470v1....
Double nuclear quadrupole resonanse 14N in some nitrogen-contained matters
The article analyses the peculiarities of indirect observation of NQR nitrogen signals and determines the conditions for the enhancement of
spin systems efficiency in static magnetic fields. It allows keeping records of the 14N spectra in the range below 1 MHz at room temperature.
This method may be used for researches on low isotope matters.
1.
Гречишкин В.
С., Синявский Н.
Я.
Новые физические ...