Scheme for Processing Mainline Gas at Gas Distribution Stations Using Regenerative Heat Exchangers by Baranov A.Yu., Kravchenko Yu.A., Kravchenko D.V., Baranov M.V.

“…The paper describes a mathematical model of a recuperative heat exchanger developed for setting up a computational experiment to assess the efficiency of recuperative heat exchangers in a natural gas liquefaction cycle, as well as for modeling the processes occurring in recuperative heat exchangers of liquefied natural gas production plants.…”
Get full text

Emission prediction and optimization of methanol/diesel dual-fuel engines based on ITransformer-BiGRU and NSGA-III by Mingzhang Pan, Xinxin Cao, Changcheng Fu, Shengyou Liao, Xiaorong Zhou, Wei Guan

“…Finally, based on the obtained mathematical model, the 3rd Non-dominated Sorting Genetic Algorithm (NGSA-III) is used to adjust and optimize the control parameters. …”
Get full text

A Model for a Multistage Fractured Horizontal Well with Rectangular SRV in a Shale Gas Reservoir by Jianfa Wu, Jian Zhang, Cheng Chang, Weiyang Xie, Tianpeng Wu

“…In this paper, a comprehensive mathematical model of a multiple fractured horizontal well (MFHW) in a rectangular drainage area with a rectangular stimulated reservoir volume (SRV) has been established, based on the conceptual model of “tri-pores” in shale gas reservoirs. …”
Get full text

ESTABLISHED MODES AND STATIC CHARACTERISTICS OF THREE-PHASE ASYNCHRONOUS MOTOR POWERED WITH SINGLE PHASE NETWORK by V. S. Malyar, V. V. Malyar

“…A mathematical model is developed to study the operation of three-phase asynchronous motor with squirrel-cage rotor when the stator winding is powered from a single phase network. …”
Get full text

Optimization of spline parameters in approximation of multivalued functions by D. A. Karpov, V. I. Struchenkov

“…The spline parameters were optimized using a new mathematical model in the form of a modified Lagrange function and a special nonlinear programming algorithm. …”
Get full text

THE MATHEMATIZATION OF COGNITIVE CONTENT AND THE IDEA OF UNIVERSAL LANGUAGE by Nijolė Aukštuolytė

“…The idea of universal language allowed him to not only obtain a mathematical model of organizing knowledge, but also a paradigm of the language capable of representing the world. …”
Get full text

Dynamics Analysis and Simulation of the Pressure Mechanism of Bronzing Machine based on Matlab by Chai Sanzhong, Qiu Jiuan

“…Neglecting the clearance and friction in the kinematic pair,the rigid body dynamics analysis of bronzing machine pressure mechanism is carried out,the mathematical model is established.By using the Matlab,the dynamics procedure of mechanism is compiled and calculated,the simulation curve of the main component is drawn,the simulation curves of no-load and load of two conditions are compared,and the force analysis of the pressure mechanism is carried out.…”
Get full text

MODEL OF WORK OF GRANT FUND by T. Gataullin, S. Nikolotova, L. Goncharov

“…The graphic illustration of the offered mathematical model is given.…”
Get full text

FACTOR ANALYSIS OF THE ROLLING PROCESS TECHNOLOGY (Part2) by A. N. Chichko, L. A. Fekoistova, V. I. Shcherbakov, A. V. Vedeneev

“…The mathematical model of the multivariate regression analysis carrying out is presented. …”
Get full text

Usage of Non-Explicit Numerical Diagram of Triple Dimensional Equation of Heat Conduction in Problems of Thermal Treatment Optimization by A. N. Chichko, A. S. Borozdin

“…A mathematical model and a program for determination of temperature field dynamics in industrial-scale blanks of unspecified and three-dimensional configuration at thermal treatment according to preset mode are presented in the paper. …”
Get full text

MATHEMATICAL FORMULATION OF PLASTIC CHARACTERISTICS OF WIRE OF STEEL 70 AT HIGH-SPEED WIRE DRAWING by Yu. L. Bobarikin, S. V. Avsejkov

“…The carried out numerical experiments subject to initial and boundary conditions indicate that mathematical model of elastic-plastic characteristics of steel 90 can be used for numerical calculations of wire drawing routes for this grade of steel.…”
Get full text

The nonlinear analysis of the reproductive system model by Donatas Švitra, Rasa Grigolienė

“… There are presented the female reproductive system mathematical model. We may interpret relations of the analysed system as the ecological problem "a predator—victim". …”
Get full text

Research of the Traction Control of Heavy Type Construction Vehicle on Complex Road Surface by Yu Rui, Xia Xiaohui

“…For the problems of heavy type construction vehicle change greatly work condition and the poor driving characteristics in the process of driving,through the introduction of the engine throttle and brake torque control in the vehicle,the heavy type construction vehicle mathematical model is established,a comprehensive control strategy for complex road surface condition of heavy construction vehicle traction is put forward.…”
Get full text

PROSPECTS OF SHALE GAS PRODUCTION IN THE RUSSIAN FEDERATION IN TERMS OF TECHNOLOGICAL DEVELOPMENT by A. Makovetsky, S. Kiseleva

“…This article describes the main aspects of shale gas production, analyzes its features and ecological and economic risks. Proposed a mathematical model of a choice of variants of development of deposits of shale gas.…”
Get full text

SOME REGULARITIES OF THE UNCERTAIN SYSTEMS ROOT LOCUS PORTRAITS by A. A. Nesenchuk

“…The paper is aimed at investigation of dynamic properties of control systems with interval parametric uncertaint y, which dynamics is described by the family of interval characteristic polynomials. The mathematical model of the system  is considered in the form of root locus portrait, represented by the root locus fields family. …”
Get full text

Simulation of Consolidated Power System Behaviour in Steady and Self-Steady Modes by A. A. Zalatoi

“…A complex mathematical model of behaviour of consolidated power systems with strong and weak internal intersystem electrical links in steady and self-steady modes is offered in view of automatic control of frequency, voltage and power. …”
Get full text

Classical Solvability of a Free Boundary Problem for an Incompressible Viscous Fluid with a Surface Density Equation by Yoshiaki Kusaka

“…We investigate a mathematical model introduced by Shikhmurzaev to remove singularities that arise when classical hydrodynamic models are applied to certain physical phenomena. …”
Get full text

THE MATHEMATIZATION OF COGNITIVE CONTENT AND THE IDEA OF UNIVERSAL LANGUAGE by Nijolė Aukštuolytė

“…The idea of universal language allowed him to not only obtain a mathematical model of organizing knowledge, but also a paradigm of the language capable of representing the world. …”
Get full text

On an initial-boundary value problem for the nonlinear Schrödinger equation by Herbert Gajewski

“…We study an initial-boundary value problem for the nonlinear Schrödinger equation, a simple mathematical model for the interaction between electromagnetic waves and a plasma layer. …”
Get full text

Simulation of Hardening and Cooling Processes for Moving Melts in Special Casting Technologies by R. I. Esman, I. I. Shub

“…A mathematical model and an algorithm for numerical solution of conjugate problem concerning hydrodynamics and heat transfer of hardening and cooling processes with liquid metal flow is given in the paper.Quantitative relationships between heating and hydrodynamic parameters of moving melts in the channels of metallic molds of special casting technologies have been determined in the paper. …”
Get full text