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Article
Graphical Determination of Cut-Layer Dimensions in Machining by a Modular Hob
A method is proposed for determining the cut-layer dimensions in tooth milling by modular hobs, on the basis of graphical CAD software. The cutting trajectory of each tooth is determined, with successive drawi...
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Article
Investigation of a High-Pressure Short-Arc Xenon Discharge at Different Electrode Surface Shapes with Taking into Account Emission of Cathode Material into a Plasma
The work is devoted to the study of a high-pressure short-arc xenon discharge, namely, its modeling taking into account the evaporation of thorium into the discharge volume with a different shape of the workin...
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Article
Destruction of a Stationary Vortex in an Elastic Medium by Energy Deposition
The dynamics of the structure of an infinite vortex tube in ideal gas under explosive external energy deposition near its axis is studied. With neglect of viscosity and heat conduction, it is discovered that t...
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Article
Simulation of an Ultrahigh-Pressure Short-Arc Xenon Discharge Plasma
We have studied a high- (ultrahigh-) pressure short-arc discharge in xenon with thoriated tungsten cathodes. A system of equations formulated based on earlier experimental data indicating possible emission of ...
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Article
Influence of the Density of Buffer Gas Atoms on the Shape of the HgXe(A30+) → HgXe(X10+) Excimer Band
The reasons for the discrepancies between the experimental data on the shape of long-wavelength continua near the 63P1 → 61S0 resonance line of a mercury atom in a xenon atmosphere obtained by different authors a...
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Article
Interaction of Phase-Modulated Femtosecond Pulses with an Optically Dense Quasi-Resonant Medium of Rubidium Vapors
For the first time, it is demonstrated that the magnitude and sign of the effect of “spectral condensation” of a laser pulse at the resonant-transition frequency of a dense medium can be controlled by changing...
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Article
Electron and multiphoton ionization of xenon
A method for determining photoionization cross sections based on comparison of the characteristics of electron- and photon-impact processes is described, discussed, and demonstrated to have many advantageous f...
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Article
Discharge plasma in an argon–water vapor mixture as a gas laser medium
The possibility of obtaining the inverse population of the excited states of hydroxyl molecules generated in low-pressure discharge plasma in an Ar–H2O mixture was studied. The possibility of inversion of both th...
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Article
The study of ungerade electronic states of the Xe2 molecules in the region of Xe*(5p 56p, 5d, 7s, 6d) by the resonance multiphoton ionization method
Electronic spectra of the Xe2 molecules in the energy range of 77700–89300 cm−1 are recorded. The method of resonance enhanced multiphoton ionization of molecules in a supersonic molecular beam was used, in which...
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Article
Forecasting credit portfolio components with a Markov chain model
We consider the forecasting problem for components of a bank’s credit portfolio, in particular, for the share of non-performing loans. We assume that changes in the portfolio are described by a Markov random p...
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Article
Investigation of the oceanic cloudiness according to the data of satellite observations in the spectral range 10.3–11.3 μm
The temperature of waters in the upper layer of the ocean and effective cloudiness (cloudiness with simultaneous indication of its amount and optical density) are important characteristics of the natural envir...
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Article
Electronic spectra of XeNe molecules in the range 77100-90100 cm-1 near Xe* (6p, 5d, 6p’, 7s, 7p, 6d) obtained by the (3 + 1) REMPI and (2 + 1) REMPI methods
The electronic spectra of XeNe molecules in the range of 77100-90100 cm-1 are measured by the method of laser resonance multiphoton ionization in a supersonic jet. The photoionization spectra are obtained upon tw...
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Article
Methods for processing the data of wind-profile observations over the ocean
We describe the in-line methods for processing the results of observations of the vertical distribution of wind speed with an aim of evaluation of the parameters characterizing the stable state of the surface ...
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Article
Electron impact ionization of Ar n , (H2O) n , Ar n (H2O) m clusters
Signals from ions forming in a supersonic molecular beam consisting of an argon-water vapor mixture are measured as functions of the exciting electron energy in the range to 120 eV. The thresholds of electron ...
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Article
Study of the lowest electronic states of Xe2, XeKr, and XeAr molecules by the method of multiphoton resonance ionization
The spectra of Xe2, XeKr, and XeAr molecules in the range 66 500–68 800 cm−1 are obtained by the methods of (2 + n) and (3 + n) (n = 1, 2, 3) resonance multiphoton ionization during the registration of molecular ...
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Article
Climatic satellite monitoring of the external heat balance of the oceans and Black Sea
The long-wave outgoing radiation, effective cloudiness equal to the product of the total cloud amount by their optical density, and the sea-surface temperature determined from the satellites are used to determ...
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Article
Composition of a water vapor-argon mixture determined by the mass spectrometry of a supersonic molecular beam
It is found that the composition of a pulsed supersonic molecular beam depends on the preparation conditions of the initial mixture containing water molecules and argon atoms. The mass spectra of the molecular...
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Article
Multiphoton mass spectra of XeKr molecules in the range of excited Xe*6p[5/2]2, 3 atoms
Data on excited states of XeKr molecules in the energy range 78280–77600 cm−1 are obtained. Using the method of multiphoton laser photoionization of molecules in a supersonic jet, five vibrational progressions of...
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Article
Determination of temperature and humidity of air, wind speed, and sensible and latent heat fluxes on the ocean surface according to the satellite data
Formulas for the evaluation of temperature and humidity of air, wind speed, and sensible and latent heat fluxes on the ocean surface according to the satellite data on the sea-surface temperature and cloudines...
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Article
Greenhouse effect of the atmosphere and its influence on Earth’s climate (satellite data)
On the basis of the radiation-cloudiness model and the available long-term satellite data, we study the correlations of the greenhouse effect with the surface temperature of air and effective cloudiness equal ...
