73 Result(s)
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Article
S. P. Kuznetsov
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Article
Surface Impregnation of Niobium Alloy in Grinding by Corundum and Silicon-Carbide Wheels
The formation of surface relief after the grinding of a niobium alloy by corundum and silicon-carbide wheels with ceramic binder is considered. A scanning dual-beam electron microscope is used to study the gro...
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Studying the Spatial Distribution of a Neutron Flux Using Detectors Based on Helium-3 and Boron-10
The spatial distribution of the neutron flux from the output channel of a photoneutron source is measured. The measurements are made using a moving helium counter and a position-sensitive detector based on a 10B ...
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On Pauli’s Theorem in Clifford Algebras
We study Pauli’s theorem in Clifford algebras. We offer an algorithm for constructing the Pauli operator and show that the problem of constructing the Pauli operator is connected with that of zero divisors in ...
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Preliminary Structural Characteristic of Polysaccharides Extracted From the Callus Tissue of Sosnowskyi’s Hogweed (Heracleum Sosnowskyi Manden) Stem by Aqueous Ammonium Oxalate
Pectic polysaccharides have been isolated from callus tissue of the stem of Sosnowskyi’s hogweed (Heracleum sosnowskyi Manden) by extraction with a 0.7% aqueous solution of ammonium oxalate and characterized. It ...
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On Pauli’s Theorem in the Clifford Algebra \({\varvec{R}}_\mathbf{1,3 } \)
In this article, in the Clifford algebra \(R_{1,3}\)R1,3, we investigated Pauli’s theorem. An algorithm for constructing Pauli’s operator is given. It is shown that the problem of constructing Pauli’s operator is...
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Neutron Diffraction and Spectrometry at the RADEX Pulsed Neutron Source of the Institute for Nuclear Research, Russian Academy of Sciences
The RADEX pulsed neutron source based on a linear proton accelerator at the Institute for Nuclear Research, the Russian Academy of Sciences, has one vertical channel with a 4-m path length and three horizontal...
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Analysis of Data Measured with a Neutron Detector Based on a Boron-10 and Helium-3 Counter on a Source of Photoneutrons
Data obtained on the IN-LUE photoneutron source at the Russian Academy of Sciences’ Institute for Nuclear Research are analyzed. The data are acquired using a position-sensitive neutron detector with an active 10
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Studying the Neutron Yield from a Target of a Compact Neutron Source on the LUE-8 Accelerator Using Helium-3 and Boron-10 Detectors
The neutron yield from a target of a photoneutron source on the beam of the LUE-8 accelerator is studied to optimize the mode of accelerator operation for research in nuclear and solid state physics. Neutrons ...
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High-Resolution Neutron Diffractometer Based on the IN-06 Pulsed Neutron Source at the Institute for Nuclear Research, Russian Academy of Sciences
A high-resolution neutron diffractometer has been fabricated on the basis of an IN-06 pulsed neutron source at the Institute for Nuclear Research, Russian Academy of Sciences. The diffractometer incorporates t...
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On Riemann Boundary-Value Problem for Regular Functions in Clifford Algebras
We pose and investigate the Riemann boundary-value problem for regular and strongly regular functions in Clifford algebras. The posed problem is reduced to the matrix problem for analytical functions in one an...
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On some simple examples of mechanical systems with hyperbolic chaos
Examples of mechanical systems with hyperbolic chaos are discussed, including the Thurston–Weeks–Hunt–MacKay hinge mechanism, in which conservative Anosov dynamics is realized, and dissipative systems with Sma...
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Describing the motion of a body with an elliptical cross section in a viscous uncompressible fluid by model equations reconstructed from data processing
From analysis of time series obtained on the numerical solution of a plane problem on the motion of a body with an elliptic cross section under the action of gravity force in an incompressible viscous fluid, a...
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Parametric chaos generator operating on a varactor diode with the instability limitation decay mechanism
Equations are derived for a parametric chaos generator containing three oscillatory circuits and a variable-capacitance diode (varactor) and are reduced to equations for slow amplitudes of parametrically inter...
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Generators of quasiperiodic oscillations with three-dimensional phase space
Considering a family of three-dimensional oscillators originating in the field of radio-engineering, the paper describes three different mechanisms of torus formation. Particular emphasis is paid to a process...
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Multifunctional pulsed neutron spectrometer IN-06 of INR RAS
The elements of multifunctional neutron spectrometer designed to simultaneously determine the parameters of atomic and supra-atomic structure and the dynamic parameters of the substance in a condensed state we...
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Phase chaos in the dynamics of an ensemble of oscillators with time-modulated global coupling
The object of consideration is an ensemble of globally coupled self-sustained oscillating elements with a finite-width frequency distribution. The ensemble interacts with the field of a resonator, which is a l...
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Parametric generator of hyperbolic chaos based on two coupled oscillators with nonlinear dissipation
The design of a parametric chaos generator based on two coupled Q-modulated oscillators with working frequencies differing by a factor of two and pumped by pulses at triple frequency with a repetition period equa...
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Example of blue sky catastrophe accompanied by a birth of Smale-Williams attractor
A model system is proposed, which manifests a blue sky catastrophe giving rise to a hyperbolic attractor of Smale-Williams type in accordance with theory of Shilnikov and Turaev. Some essential features of the...
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Hyperbolic chaos generator based on coupled drift klystrons
A scheme of the generator of chaotic oscillations in the microwave band is proposed that is based on two drift klystrons coupled in a ring circuit. The first klystron doubles the frequency of the input signal ...
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Optical losses in polycrystalline CVD ZnS
We discuss the reasons for the limited visible and near-IR transmittance of polycrystalline zinc sulfide produced by chemical vapor deposition (CVD). Comparison of measured scattering indicatrices, depolarizat...
