| Vol-2946 urn:nbn:de:0074-2946-4 Copyright © 2021 for the individual papers by the papers' authors. Copyright © 2021 for the volume as a collection by its editors. This volume and its papers are published under the Creative Commons License Attribution 4.0 International (CC BY 4.0).

# ITTMM 2021
Information and Telecommunication Technologies and Mathematical Modeling of High-Tech Systems 2021 (ITTMM-2021)

### Proceedings of the Workshop on information technology and scientific computing in the framework of the XI International Conference Information and Telecommunication Technologies and Mathematical Modeling of High-Tech Systems

### Moscow, Russian, April 19th to 23rd, 2021.

Edited by

### Dmitry S. Kulyabov, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
Konstantin E. Samouylov, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
Leonid A. Sevastianov, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation

## Table of Contents

- The XI International Conference Information and Telecommunication Technologies and Mathematical Modeling of High-Tech Systems 1-5
  Konstantin E. Samouylov, Leonid A. Sevastianov, Dmitry S. Kulyabov
  Summary: There were 23 papers submitted for peer-review to this workshop. Out of these, 9 papers were accepted for this volume.
- Synthesis and computer research of a belt conveyor models with intelligent control 6-18
  Olga V. Druzhinina, Olga N. Masina, Elena V. Igonina, Alexey A. Petrov
- Design and computer research of a nonlinear stochastic models describing the dynamics of interacting populations 19-32
  Anastasia V. Demidova, Olga V. Druzhinina, Olga N. Masina, Alexander V. Shcherbakov
- Construction and simulation of continuous time portfolio with given properties 33-44
  Sergey G. Shorokhov
- Computer simulation of the stochastic RED algorithm 45-53
  Anna Maria Yu. Apreutesey, Anna V. Korolkova, Dmitry S. Kulyabov
- Comparation of two single-server queueing systems with exponential service times and threshold-based renovation 54-63
  Viana C. C. Hilquias, Ivan S. Zaryadov
- On statistical analysis and prediction of sap flow density for smart urban tree monitoring 64-73
  Anastasia Safargalieva, Irina Kochetkova, Elena Makeeva, Sergey Shorgin
- Model of radio admission control for URLLC and adaptive bit rate eMBB in 5G network 74-84
  Anna Kushchazli, Anastasia Ageeva, Irina Kochetkova, Petr Kharin, Alexander Chursin, Sergey Shorgin
- Surrogate modeling assistant software 85-91
  Anastasia V. Demidova, Tatyana R. Velieva, Anna V. Korolkova, Dmitry S. Kulyabov
- Implementation of an analytical-numerical approach to stochastization of one-step processes in the Julia programming language 92-104
  Arseny V. Fedorov, Anna O. Masolova, Anna V. Korolkova, Dmitry S. Kulyabov

We offer a BibTeX file for citing papers of this workshop from LaTeX.

2021-09-15: submitted by Dmitry S. Kulyabov, metadata incl. bibliographic data published under Creative Commons CC0
2021-09-19: published on CEUR-WS.org |valid HTML5|