Contents

Journal of Contemporary Physics (Armenian Academy of Sciences)

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Vol. 56, No. 4, 2021

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Prediction of Atomic Ground State Relaxation Rate from Fluorescence Spectra Using Machine Learning

A. A. Sargsyan, A. Yu. Aleksanyan, S. A. Petrosyan, E. A. Gazazyan, A. V. Papoyan and H. V. Astsatryan p. 285  abstract

A New Level-Crossing Two-State Model Solvable in Terms of Hypergeometric Functions

T. A. Shahverdyan, T. A. Ishkhanyan and A. M. Ishkhanyan p. 291  abstract

Vibrating Wire Station for Horizontal and Vertical Profiling of Proton Beam of Cyclotron C18 in Air

M. A. Aginian, A. P. Aprahamian, S. G. Arutunian, G. S. Harutyunyan, E. G. Lazareva, L. M. Lazarev, A. V. Margaryan, L. A. Shahinyan, R. K. Dallakyan, A. A. Manukyan, V. K. Elbakyan, G. A. Hovhannisyan, G. E. Elbakyan, M. Chung and D. Kwak p. 297  abstract

Spectral Properties of YAP:Yb Laser Crystals with Additional Li⁺ and Hf⁴⁺ Ions

K. L. Hovhannesyan, M. V. Derdzyan, I. A. Ghambaryan, A. A. Novikov, V. E. Kisel, A. S. Rudenkov, N. V. Kuleshov and A. G. Petrosyan p. 309  abstract

To the Problem of Description of the Wave Field Radiating by a System of Point Coherently Sources

A. Zh. Khachatrian p. 313  abstract

Theoretical Studies of Nanowire Ion-Sensitive Field Effect Transistor

A. Yesayan, S. Petrosyan, A. Papiyan and J.-M. Sallese p. 324  abstract

Hydrogen Peroxide Semiconductor Sensors

V. M. Aroutiounian p. 332  abstract

Study of Characteristics of the Sensor Detecting of Low Concentration of Ammonia

M. S. Aleksanyan, A. G. Sayunts, G. H. Shahkhatuni, V. M. Aroutiounian and G. E. Shahnazaryan p. 352  abstract

Weak Localization and Weak Anti-Localization in Ultra Thin Sb₂Te₃ Nanoplates

A. A. Kuzanyan and S. R. Harutyunyan p. 359  abstract

Critical Wavelength in the Metal Waveguide Partially Filled with Nonlinear Crystal

A. S. Nikoghosyan, V. R. Tadevosyan, G. N. Goltsman and S. V. Antipov p. 366  abstract

Hard X-Ray Phase-Contrast Laboratory Microscope Based on Three-Block Fresnel Zone Plate Interferometer

L. A. Haroutunyan p. 371  abstract

Observation of Electroconvection in Nematic Liquid Crystals by X-Ray Interferometric Method

L. G. Gasparyan, V. P. Mkrtchyan, R. A. Alaverdyan and T. M. Sarukhanyan p. 379  abstract

Description of Nonlinear Diffusion in Non-Ideal Multicomponent Systems. Approach of Variable Stochiometric Vectors

H. P. Sargsyan p. 384  abstract

Description of Helix-Coil Transition in Heteropolymers in Frame of GMPC

A. V. Asatryan, A. K. Kalashyan and V. F. Morozov p. 395  abstract

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