Measurement of the plastic scintillator response in the magnetic field

We present the results of measurements of the light yield dependencies for the plastic scintillators on magnetic field value and orientation. The magnetic field value was changed from 0 up to 3.8 T. Scintillators were irradiated by electrons (¹³⁷Cs and ²⁰⁷Bi) and by alpha-particles (²⁴¹Am). The detected light spectra in the electron irradiating cases show two dependencies: the first one is dependence on the magnetic field value only and the second-light output is dependent on the magnetic field orientation when the radioactive source is outside of the scintillator. The value and behavior of the first dependence agree with data published earlier.

Under alpha-particle irradiation the light output does not depend on the magnetic field value and orientation practically.     

New combination unit for crude on processing

Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 4, pp. 8–10, April, 1992.     

Sedimentation kinetics of polydisperse second-phase inclusions in molten selenium

The behavior of polydisperse second-phase inclusions in molten selenium during settling is modeled using solid carbon particles as an example. A theoretical limit of the particle concentration in the surface layer of the melt is evaluated as a function of particle size, and the particle concentration is determined as a function of time, melt viscosity, and surface layer thickness. The calculated histograms of the particle size distribution in the surface and bottom layers of molten selenium are in satisfactory agreement with experimental data.     

Discharge of a liquid jet under near-critical thermodynamic conditions

The behavior of a Freon-22 jet and a kerosene jet in a concurrent nitrogen stream under near-critical thermodynamic conditions is analyzed qualitatively.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 23, No. 2, pp. 201–206, August, 1972.     

Embedding positional-independent hidden data into hardcopy

We propose an approach for embedding of imperceptible hidden data into printed text document with ability to extract this data during scanning. Our approach is based on intrusion of cluster of small black dots (patterns) with predefined positional-independent structure into the document. Such intrusion will not visibly deteriorate document itself. Proposed multiple duplications of embedded information and statistical approach during hidden message extraction provide method with high immunity against document modification or noise.     

Designing and modeling a linear electric motor for vibration-technology machines

One industrial application of linear motors is as working-body drives of vibration-technology machines. Such drives allow manufacturing of equipment with very low energy consumption and material costs. This paper presents the results of research on substantiation of the prospects of application of linear electric motors as drive vibration-technology machines. The results of designing a linear dc motor are presented. This paper describes the design of the electric motor and its operation in the hold-down and vibrating modes. The main technical characteristics of the motor are given. Simulation of the electric-motor electromagnetic field based on symmetrical setting of the task for the Poisson equation was performed with a view to specifying and verifying the preliminary calculation data. The results of the calculations and simulations show that it is possible to create low-cost, manufacturable, and reliable electrical motors for a linear vibratory actuator.     

Predicting the Settlement and Long-Term Bearing Capacity of a Base of Foundation of Finite Width

Soil Mechanics and Foundation Engineering - The article shows that if the model proposed by A. Z. Ter-Martirosyan is used to describe shear deformations in a soil medium, and the Kelvin-Voigt model...     

Bearing Capacity of Soil Base and Settlement of Foundations of Finite Width

Soil Mechanics and Foundation Engineering - The analytical solution of the problem of the bearing capacity of the soil base and the foundation settlement of a limited width is presented,...